./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label01.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_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/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_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label01.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/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_97b5f387-e38c-4e08-b2b7-ba573572d29f/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 726c27beb485f609d605f0581621ddf01187954349267fe751f77dd8e4a5e6ab --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 06:41:15,223 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 06:41:15,279 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 06:41:15,284 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 06:41:15,284 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 06:41:15,305 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 06:41:15,306 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 06:41:15,306 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 06:41:15,306 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 06:41:15,307 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 06:41:15,307 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 06:41:15,307 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 06:41:15,307 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 06:41:15,307 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 06:41:15,307 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 06:41:15,308 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 06:41:15,308 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 06:41:15,308 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 06:41:15,308 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 06:41:15,308 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 06:41:15,308 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 06:41:15,308 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 06:41:15,308 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 06:41:15,308 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 06:41:15,308 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 06:41:15,309 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 06:41:15,309 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 06:41:15,309 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 06:41:15,309 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 06:41:15,309 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:41:15,309 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 06:41:15,309 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 06:41:15,309 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:41:15,309 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 06:41:15,309 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:41:15,310 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 06:41:15,310 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 06:41:15,310 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:41:15,310 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 06:41:15,310 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 06:41:15,310 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 06:41:15,310 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 06:41:15,310 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 06:41:15,310 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 06:41:15,310 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 06:41:15,310 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 06:41:15,311 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 06:41:15,311 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 06:41:15,311 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_97b5f387-e38c-4e08-b2b7-ba573572d29f/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 -> 726c27beb485f609d605f0581621ddf01187954349267fe751f77dd8e4a5e6ab [2024-12-02 06:41:15,525 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 06:41:15,534 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 06:41:15,536 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 06:41:15,537 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 06:41:15,538 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 06:41:15,539 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label01.c [2024-12-02 06:41:18,232 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/data/e2ac5bad9/84a66308fa254f099148afb80ebe0afb/FLAG97d45e6bb [2024-12-02 06:41:18,589 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 06:41:18,590 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label01.c [2024-12-02 06:41:18,615 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/data/e2ac5bad9/84a66308fa254f099148afb80ebe0afb/FLAG97d45e6bb [2024-12-02 06:41:18,628 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/data/e2ac5bad9/84a66308fa254f099148afb80ebe0afb [2024-12-02 06:41:18,630 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 06:41:18,631 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 06:41:18,632 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 06:41:18,632 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 06:41:18,635 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 06:41:18,635 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:41:18" (1/1) ... [2024-12-02 06:41:18,636 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c67fc31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:41:18, skipping insertion in model container [2024-12-02 06:41:18,636 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:41:18" (1/1) ... [2024-12-02 06:41:18,709 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 06:41:18,994 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_97b5f387-e38c-4e08-b2b7-ba573572d29f/sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label01.c[15510,15523] [2024-12-02 06:41:19,040 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_97b5f387-e38c-4e08-b2b7-ba573572d29f/sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label01.c[21065,21078] [2024-12-02 06:41:19,538 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:41:19,547 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 06:41:19,581 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_97b5f387-e38c-4e08-b2b7-ba573572d29f/sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label01.c[15510,15523] [2024-12-02 06:41:19,590 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_97b5f387-e38c-4e08-b2b7-ba573572d29f/sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label01.c[21065,21078] [2024-12-02 06:41:19,963 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:41:19,985 INFO L204 MainTranslator]: Completed translation [2024-12-02 06:41:19,986 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:41:19 WrapperNode [2024-12-02 06:41:19,986 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 06:41:19,987 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 06:41:19,987 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 06:41:19,987 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 06:41:19,993 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:41:19" (1/1) ... [2024-12-02 06:41:20,033 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:41:19" (1/1) ... [2024-12-02 06:41:20,250 INFO L138 Inliner]: procedures = 38, calls = 23, calls flagged for inlining = 18, calls inlined = 18, statements flattened = 5155 [2024-12-02 06:41:20,250 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 06:41:20,251 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 06:41:20,251 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 06:41:20,251 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 06:41:20,300 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:41:19" (1/1) ... [2024-12-02 06:41:20,300 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:41:19" (1/1) ... [2024-12-02 06:41:20,332 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:41:19" (1/1) ... [2024-12-02 06:41:20,473 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 06:41:20,474 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:41:19" (1/1) ... [2024-12-02 06:41:20,474 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:41:19" (1/1) ... [2024-12-02 06:41:20,646 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:41:19" (1/1) ... [2024-12-02 06:41:20,664 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:41:19" (1/1) ... [2024-12-02 06:41:20,723 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:41:19" (1/1) ... [2024-12-02 06:41:20,737 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:41:19" (1/1) ... [2024-12-02 06:41:20,747 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:41:19" (1/1) ... [2024-12-02 06:41:20,795 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 06:41:20,796 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 06:41:20,796 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 06:41:20,796 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 06:41:20,797 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:41:19" (1/1) ... [2024-12-02 06:41:20,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:41:20,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:41:20,823 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 06:41:20,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 06:41:20,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 06:41:20,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 06:41:20,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 06:41:20,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 06:41:20,938 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 06:41:20,940 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 06:41:25,280 INFO L? ?]: Removed 749 outVars from TransFormulas that were not future-live. [2024-12-02 06:41:25,280 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 06:41:25,309 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 06:41:25,309 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-12-02 06:41:25,309 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:41:25 BoogieIcfgContainer [2024-12-02 06:41:25,310 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 06:41:25,312 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 06:41:25,312 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 06:41:25,317 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 06:41:25,317 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:41:18" (1/3) ... [2024-12-02 06:41:25,318 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a8ea120 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:41:25, skipping insertion in model container [2024-12-02 06:41:25,318 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:41:19" (2/3) ... [2024-12-02 06:41:25,318 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a8ea120 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:41:25, skipping insertion in model container [2024-12-02 06:41:25,318 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:41:25" (3/3) ... [2024-12-02 06:41:25,319 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label01.c [2024-12-02 06:41:25,335 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 06:41:25,338 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label01.c that has 1 procedures, 916 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-12-02 06:41:25,413 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 06:41:25,425 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;@20c56a54, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 06:41:25,425 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-12-02 06:41:25,432 INFO L276 IsEmpty]: Start isEmpty. Operand has 916 states, 913 states have (on average 1.9036144578313252) internal successors, (1738), 915 states have internal predecessors, (1738), 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 06:41:25,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-12-02 06:41:25,439 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:41:25,440 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] [2024-12-02 06:41:25,440 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:41:25,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:41:25,445 INFO L85 PathProgramCache]: Analyzing trace with hash -2028897015, now seen corresponding path program 1 times [2024-12-02 06:41:25,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:41:25,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578350905] [2024-12-02 06:41:25,453 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:41:25,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:41:25,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:41:25,661 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 06:41:25,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:41:25,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578350905] [2024-12-02 06:41:25,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578350905] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:41:25,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:41:25,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 06:41:25,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338216308] [2024-12-02 06:41:25,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:41:25,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 06:41:25,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:41:25,686 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 06:41:25,686 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 06:41:25,691 INFO L87 Difference]: Start difference. First operand has 916 states, 913 states have (on average 1.9036144578313252) internal successors, (1738), 915 states have internal predecessors, (1738), 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 13.0) internal successors, (26), 2 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:41:25,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:41:25,757 INFO L93 Difference]: Finished difference Result 1784 states and 3386 transitions. [2024-12-02 06:41:25,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 06:41:25,759 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2024-12-02 06:41:25,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:41:25,773 INFO L225 Difference]: With dead ends: 1784 [2024-12-02 06:41:25,773 INFO L226 Difference]: Without dead ends: 850 [2024-12-02 06:41:25,779 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 06:41:25,782 INFO L435 NwaCegarLoop]: 1669 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, 1669 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 06:41:25,783 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1669 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:41:25,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2024-12-02 06:41:25,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 850. [2024-12-02 06:41:25,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 850 states, 848 states have (on average 1.892688679245283) internal successors, (1605), 849 states have internal predecessors, (1605), 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 06:41:25,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 1605 transitions. [2024-12-02 06:41:25,859 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 1605 transitions. Word has length 26 [2024-12-02 06:41:25,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:41:25,860 INFO L471 AbstractCegarLoop]: Abstraction has 850 states and 1605 transitions. [2024-12-02 06:41:25,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:41:25,860 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 1605 transitions. [2024-12-02 06:41:25,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-12-02 06:41:25,862 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:41:25,862 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] [2024-12-02 06:41:25,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 06:41:25,862 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:41:25,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:41:25,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1448421831, now seen corresponding path program 1 times [2024-12-02 06:41:25,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:41:25,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965452291] [2024-12-02 06:41:25,864 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:41:25,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:41:25,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:41:26,134 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 06:41:26,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:41:26,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965452291] [2024-12-02 06:41:26,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965452291] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:41:26,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:41:26,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:41:26,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242513992] [2024-12-02 06:41:26,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:41:26,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:41:26,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:41:26,137 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:41:26,137 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:41:26,138 INFO L87 Difference]: Start difference. First operand 850 states and 1605 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:41:26,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:41:26,294 INFO L93 Difference]: Finished difference Result 904 states and 1689 transitions. [2024-12-02 06:41:26,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:41:26,295 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2024-12-02 06:41:26,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:41:26,299 INFO L225 Difference]: With dead ends: 904 [2024-12-02 06:41:26,299 INFO L226 Difference]: Without dead ends: 850 [2024-12-02 06:41:26,300 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 06:41:26,301 INFO L435 NwaCegarLoop]: 1603 mSDtfsCounter, 0 mSDsluCounter, 4764 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6367 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:41:26,301 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6367 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:41:26,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2024-12-02 06:41:26,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 850. [2024-12-02 06:41:26,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 850 states, 848 states have (on average 1.8455188679245282) internal successors, (1565), 849 states have internal predecessors, (1565), 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 06:41:26,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 1565 transitions. [2024-12-02 06:41:26,333 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 1565 transitions. Word has length 26 [2024-12-02 06:41:26,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:41:26,334 INFO L471 AbstractCegarLoop]: Abstraction has 850 states and 1565 transitions. [2024-12-02 06:41:26,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:41:26,334 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 1565 transitions. [2024-12-02 06:41:26,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-12-02 06:41:26,335 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:41:26,336 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] [2024-12-02 06:41:26,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 06:41:26,336 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:41:26,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:41:26,337 INFO L85 PathProgramCache]: Analyzing trace with hash -470653515, now seen corresponding path program 1 times [2024-12-02 06:41:26,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:41:26,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733320802] [2024-12-02 06:41:26,337 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:41:26,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:41:26,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:41:26,457 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 06:41:26,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:41:26,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733320802] [2024-12-02 06:41:26,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733320802] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:41:26,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:41:26,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 06:41:26,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584164589] [2024-12-02 06:41:26,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:41:26,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:41:26,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:41:26,459 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:41:26,459 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:41:26,459 INFO L87 Difference]: Start difference. First operand 850 states and 1565 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:41:30,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:41:30,053 INFO L93 Difference]: Finished difference Result 2354 states and 4438 transitions. [2024-12-02 06:41:30,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:41:30,054 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2024-12-02 06:41:30,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:41:30,061 INFO L225 Difference]: With dead ends: 2354 [2024-12-02 06:41:30,061 INFO L226 Difference]: Without dead ends: 1601 [2024-12-02 06:41:30,062 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 06:41:30,063 INFO L435 NwaCegarLoop]: 547 mSDtfsCounter, 896 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2274 mSolverCounterSat, 591 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 896 SdHoareTripleChecker+Valid, 554 SdHoareTripleChecker+Invalid, 2865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 591 IncrementalHoareTripleChecker+Valid, 2274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-12-02 06:41:30,063 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [896 Valid, 554 Invalid, 2865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [591 Valid, 2274 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-12-02 06:41:30,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1601 states. [2024-12-02 06:41:30,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1601 to 1601. [2024-12-02 06:41:30,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1601 states, 1599 states have (on average 1.6210131332082551) internal successors, (2592), 1600 states have internal predecessors, (2592), 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 06:41:30,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1601 states to 1601 states and 2592 transitions. [2024-12-02 06:41:30,113 INFO L78 Accepts]: Start accepts. Automaton has 1601 states and 2592 transitions. Word has length 48 [2024-12-02 06:41:30,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:41:30,113 INFO L471 AbstractCegarLoop]: Abstraction has 1601 states and 2592 transitions. [2024-12-02 06:41:30,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:41:30,114 INFO L276 IsEmpty]: Start isEmpty. Operand 1601 states and 2592 transitions. [2024-12-02 06:41:30,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-12-02 06:41:30,115 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:41:30,116 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] [2024-12-02 06:41:30,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 06:41:30,116 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:41:30,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:41:30,116 INFO L85 PathProgramCache]: Analyzing trace with hash -295358701, now seen corresponding path program 1 times [2024-12-02 06:41:30,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:41:30,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457392999] [2024-12-02 06:41:30,117 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:41:30,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:41:30,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:41:30,384 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 06:41:30,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:41:30,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457392999] [2024-12-02 06:41:30,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457392999] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:41:30,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:41:30,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 06:41:30,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661116436] [2024-12-02 06:41:30,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:41:30,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 06:41:30,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:41:30,386 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 06:41:30,387 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 06:41:30,387 INFO L87 Difference]: Start difference. First operand 1601 states and 2592 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 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 06:41:30,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:41:30,744 INFO L93 Difference]: Finished difference Result 2201 states and 3552 transitions. [2024-12-02 06:41:30,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 06:41:30,745 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 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 65 [2024-12-02 06:41:30,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:41:30,751 INFO L225 Difference]: With dead ends: 2201 [2024-12-02 06:41:30,751 INFO L226 Difference]: Without dead ends: 2151 [2024-12-02 06:41:30,753 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2024-12-02 06:41:30,753 INFO L435 NwaCegarLoop]: 1559 mSDtfsCounter, 9855 mSDsluCounter, 1526 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9855 SdHoareTripleChecker+Valid, 3085 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:41:30,754 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9855 Valid, 3085 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:41:30,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2151 states. [2024-12-02 06:41:30,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2151 to 1649. [2024-12-02 06:41:30,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1649 states, 1647 states have (on average 1.620522161505768) internal successors, (2669), 1648 states have internal predecessors, (2669), 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 06:41:30,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1649 states to 1649 states and 2669 transitions. [2024-12-02 06:41:30,792 INFO L78 Accepts]: Start accepts. Automaton has 1649 states and 2669 transitions. Word has length 65 [2024-12-02 06:41:30,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:41:30,793 INFO L471 AbstractCegarLoop]: Abstraction has 1649 states and 2669 transitions. [2024-12-02 06:41:30,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 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 06:41:30,793 INFO L276 IsEmpty]: Start isEmpty. Operand 1649 states and 2669 transitions. [2024-12-02 06:41:30,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-12-02 06:41:30,795 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:41:30,795 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 06:41:30,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 06:41:30,795 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:41:30,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:41:30,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1787564125, now seen corresponding path program 1 times [2024-12-02 06:41:30,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:41:30,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452217447] [2024-12-02 06:41:30,797 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:41:30,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:41:30,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:41:30,930 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 06:41:30,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:41:30,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452217447] [2024-12-02 06:41:30,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452217447] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:41:30,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:41:30,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:41:30,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453793911] [2024-12-02 06:41:30,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:41:30,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:41:30,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:41:30,931 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:41:30,931 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:41:30,932 INFO L87 Difference]: Start difference. First operand 1649 states and 2669 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) 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 06:41:30,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:41:30,977 INFO L93 Difference]: Finished difference Result 1834 states and 2964 transitions. [2024-12-02 06:41:30,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:41:30,977 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) 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 06:41:30,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:41:30,983 INFO L225 Difference]: With dead ends: 1834 [2024-12-02 06:41:30,983 INFO L226 Difference]: Without dead ends: 1736 [2024-12-02 06:41:30,984 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 06:41:30,984 INFO L435 NwaCegarLoop]: 1561 mSDtfsCounter, 1492 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1492 SdHoareTripleChecker+Valid, 1634 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 06:41:30,984 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1492 Valid, 1634 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:41:30,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1736 states. [2024-12-02 06:41:31,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1736 to 1732. [2024-12-02 06:41:31,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1732 states, 1730 states have (on average 1.6179190751445087) internal successors, (2799), 1731 states have internal predecessors, (2799), 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 06:41:31,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1732 states to 1732 states and 2799 transitions. [2024-12-02 06:41:31,019 INFO L78 Accepts]: Start accepts. Automaton has 1732 states and 2799 transitions. Word has length 67 [2024-12-02 06:41:31,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:41:31,020 INFO L471 AbstractCegarLoop]: Abstraction has 1732 states and 2799 transitions. [2024-12-02 06:41:31,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) 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 06:41:31,020 INFO L276 IsEmpty]: Start isEmpty. Operand 1732 states and 2799 transitions. [2024-12-02 06:41:31,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-12-02 06:41:31,021 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:41:31,021 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 06:41:31,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 06:41:31,021 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:41:31,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:41:31,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1721070613, now seen corresponding path program 1 times [2024-12-02 06:41:31,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:41:31,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113595249] [2024-12-02 06:41:31,022 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:41:31,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:41:31,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:41:31,438 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 06:41:31,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:41:31,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113595249] [2024-12-02 06:41:31,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113595249] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:41:31,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:41:31,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 06:41:31,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67760051] [2024-12-02 06:41:31,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:41:31,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 06:41:31,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:41:31,440 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 06:41:31,440 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-12-02 06:41:31,440 INFO L87 Difference]: Start difference. First operand 1732 states and 2799 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 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 06:41:31,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:41:31,743 INFO L93 Difference]: Finished difference Result 1915 states and 3087 transitions. [2024-12-02 06:41:31,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 06:41:31,744 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 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 06:41:31,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:41:31,750 INFO L225 Difference]: With dead ends: 1915 [2024-12-02 06:41:31,750 INFO L226 Difference]: Without dead ends: 1734 [2024-12-02 06:41:31,751 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2024-12-02 06:41:31,752 INFO L435 NwaCegarLoop]: 1557 mSDtfsCounter, 6020 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6020 SdHoareTripleChecker+Valid, 1940 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:41:31,752 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6020 Valid, 1940 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:41:31,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1734 states. [2024-12-02 06:41:31,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1734 to 1732. [2024-12-02 06:41:31,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1732 states, 1730 states have (on average 1.6167630057803468) internal successors, (2797), 1731 states have internal predecessors, (2797), 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 06:41:31,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1732 states to 1732 states and 2797 transitions. [2024-12-02 06:41:31,776 INFO L78 Accepts]: Start accepts. Automaton has 1732 states and 2797 transitions. Word has length 67 [2024-12-02 06:41:31,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:41:31,776 INFO L471 AbstractCegarLoop]: Abstraction has 1732 states and 2797 transitions. [2024-12-02 06:41:31,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 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 06:41:31,777 INFO L276 IsEmpty]: Start isEmpty. Operand 1732 states and 2797 transitions. [2024-12-02 06:41:31,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-12-02 06:41:31,777 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:41:31,777 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, 1] [2024-12-02 06:41:31,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 06:41:31,778 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:41:31,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:41:31,778 INFO L85 PathProgramCache]: Analyzing trace with hash 2066662853, now seen corresponding path program 1 times [2024-12-02 06:41:31,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:41:31,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014950567] [2024-12-02 06:41:31,778 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:41:31,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:41:31,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:41:31,989 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 06:41:31,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:41:31,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014950567] [2024-12-02 06:41:31,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014950567] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:41:31,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:41:31,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:41:31,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199490300] [2024-12-02 06:41:31,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:41:31,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:41:31,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:41:31,991 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:41:31,991 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:41:31,991 INFO L87 Difference]: Start difference. First operand 1732 states and 2797 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 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 06:41:32,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:41:32,034 INFO L93 Difference]: Finished difference Result 1740 states and 2806 transitions. [2024-12-02 06:41:32,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:41:32,035 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 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 68 [2024-12-02 06:41:32,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:41:32,044 INFO L225 Difference]: With dead ends: 1740 [2024-12-02 06:41:32,044 INFO L226 Difference]: Without dead ends: 1738 [2024-12-02 06:41:32,046 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 06:41:32,046 INFO L435 NwaCegarLoop]: 1562 mSDtfsCounter, 0 mSDsluCounter, 4677 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6239 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:41:32,047 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6239 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:41:32,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1738 states. [2024-12-02 06:41:32,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1738 to 1738. [2024-12-02 06:41:32,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1738 states, 1736 states have (on average 1.6140552995391706) internal successors, (2802), 1737 states have internal predecessors, (2802), 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 06:41:32,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1738 states to 1738 states and 2802 transitions. [2024-12-02 06:41:32,088 INFO L78 Accepts]: Start accepts. Automaton has 1738 states and 2802 transitions. Word has length 68 [2024-12-02 06:41:32,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:41:32,089 INFO L471 AbstractCegarLoop]: Abstraction has 1738 states and 2802 transitions. [2024-12-02 06:41:32,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 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 06:41:32,090 INFO L276 IsEmpty]: Start isEmpty. Operand 1738 states and 2802 transitions. [2024-12-02 06:41:32,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-12-02 06:41:32,091 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:41:32,091 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, 1, 1] [2024-12-02 06:41:32,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 06:41:32,091 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:41:32,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:41:32,092 INFO L85 PathProgramCache]: Analyzing trace with hash 279342091, now seen corresponding path program 1 times [2024-12-02 06:41:32,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:41:32,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635535136] [2024-12-02 06:41:32,092 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:41:32,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:41:32,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:41:32,172 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 06:41:32,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:41:32,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635535136] [2024-12-02 06:41:32,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635535136] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:41:32,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:41:32,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:41:32,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625117171] [2024-12-02 06:41:32,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:41:32,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:41:32,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:41:32,173 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:41:32,174 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:41:32,174 INFO L87 Difference]: Start difference. First operand 1738 states and 2802 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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 06:41:32,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:41:32,200 INFO L93 Difference]: Finished difference Result 2096 states and 3354 transitions. [2024-12-02 06:41:32,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:41:32,201 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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 69 [2024-12-02 06:41:32,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:41:32,205 INFO L225 Difference]: With dead ends: 2096 [2024-12-02 06:41:32,205 INFO L226 Difference]: Without dead ends: 1909 [2024-12-02 06:41:32,206 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 06:41:32,206 INFO L435 NwaCegarLoop]: 1612 mSDtfsCounter, 1505 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1505 SdHoareTripleChecker+Valid, 1701 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 06:41:32,207 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1505 Valid, 1701 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:41:32,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1909 states. [2024-12-02 06:41:32,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1909 to 1907. [2024-12-02 06:41:32,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1907 states, 1905 states have (on average 1.6057742782152231) internal successors, (3059), 1906 states have internal predecessors, (3059), 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 06:41:32,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1907 states to 1907 states and 3059 transitions. [2024-12-02 06:41:32,233 INFO L78 Accepts]: Start accepts. Automaton has 1907 states and 3059 transitions. Word has length 69 [2024-12-02 06:41:32,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:41:32,233 INFO L471 AbstractCegarLoop]: Abstraction has 1907 states and 3059 transitions. [2024-12-02 06:41:32,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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 06:41:32,233 INFO L276 IsEmpty]: Start isEmpty. Operand 1907 states and 3059 transitions. [2024-12-02 06:41:32,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-12-02 06:41:32,234 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:41:32,234 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, 1, 1] [2024-12-02 06:41:32,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 06:41:32,234 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:41:32,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:41:32,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1517604107, now seen corresponding path program 1 times [2024-12-02 06:41:32,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:41:32,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956577932] [2024-12-02 06:41:32,235 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:41:32,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:41:32,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:41:32,284 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 06:41:32,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:41:32,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956577932] [2024-12-02 06:41:32,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956577932] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:41:32,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:41:32,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:41:32,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005940042] [2024-12-02 06:41:32,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:41:32,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:41:32,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:41:32,285 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:41:32,285 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:41:32,285 INFO L87 Difference]: Start difference. First operand 1907 states and 3059 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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 06:41:32,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:41:32,314 INFO L93 Difference]: Finished difference Result 2587 states and 4097 transitions. [2024-12-02 06:41:32,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:41:32,314 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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 69 [2024-12-02 06:41:32,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:41:32,319 INFO L225 Difference]: With dead ends: 2587 [2024-12-02 06:41:32,319 INFO L226 Difference]: Without dead ends: 2231 [2024-12-02 06:41:32,321 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 06:41:32,321 INFO L435 NwaCegarLoop]: 1610 mSDtfsCounter, 1503 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1503 SdHoareTripleChecker+Valid, 1703 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 06:41:32,321 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1503 Valid, 1703 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:41:32,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2024-12-02 06:41:32,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 2229. [2024-12-02 06:41:32,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2229 states, 2227 states have (on average 1.5900314324202964) internal successors, (3541), 2228 states have internal predecessors, (3541), 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 06:41:32,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2229 states to 2229 states and 3541 transitions. [2024-12-02 06:41:32,354 INFO L78 Accepts]: Start accepts. Automaton has 2229 states and 3541 transitions. Word has length 69 [2024-12-02 06:41:32,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:41:32,354 INFO L471 AbstractCegarLoop]: Abstraction has 2229 states and 3541 transitions. [2024-12-02 06:41:32,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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 06:41:32,354 INFO L276 IsEmpty]: Start isEmpty. Operand 2229 states and 3541 transitions. [2024-12-02 06:41:32,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-12-02 06:41:32,355 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:41:32,355 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, 1, 1] [2024-12-02 06:41:32,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 06:41:32,355 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:41:32,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:41:32,355 INFO L85 PathProgramCache]: Analyzing trace with hash -697864693, now seen corresponding path program 1 times [2024-12-02 06:41:32,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:41:32,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323261459] [2024-12-02 06:41:32,356 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:41:32,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:41:32,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:41:32,405 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 06:41:32,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:41:32,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323261459] [2024-12-02 06:41:32,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323261459] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:41:32,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:41:32,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:41:32,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139005570] [2024-12-02 06:41:32,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:41:32,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:41:32,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:41:32,406 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:41:32,406 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:41:32,407 INFO L87 Difference]: Start difference. First operand 2229 states and 3541 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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 06:41:32,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:41:32,442 INFO L93 Difference]: Finished difference Result 3521 states and 5487 transitions. [2024-12-02 06:41:32,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:41:32,442 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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 69 [2024-12-02 06:41:32,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:41:32,448 INFO L225 Difference]: With dead ends: 3521 [2024-12-02 06:41:32,448 INFO L226 Difference]: Without dead ends: 2843 [2024-12-02 06:41:32,450 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 06:41:32,450 INFO L435 NwaCegarLoop]: 1608 mSDtfsCounter, 1501 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1501 SdHoareTripleChecker+Valid, 1705 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 06:41:32,450 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1501 Valid, 1705 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:41:32,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2843 states. [2024-12-02 06:41:32,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2843 to 2841. [2024-12-02 06:41:32,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2841 states, 2839 states have (on average 1.5642831983092638) internal successors, (4441), 2840 states have internal predecessors, (4441), 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 06:41:32,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2841 states to 2841 states and 4441 transitions. [2024-12-02 06:41:32,494 INFO L78 Accepts]: Start accepts. Automaton has 2841 states and 4441 transitions. Word has length 69 [2024-12-02 06:41:32,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:41:32,494 INFO L471 AbstractCegarLoop]: Abstraction has 2841 states and 4441 transitions. [2024-12-02 06:41:32,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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 06:41:32,495 INFO L276 IsEmpty]: Start isEmpty. Operand 2841 states and 4441 transitions. [2024-12-02 06:41:32,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-12-02 06:41:32,495 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:41:32,495 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, 1, 1] [2024-12-02 06:41:32,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 06:41:32,495 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:41:32,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:41:32,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1083068171, now seen corresponding path program 1 times [2024-12-02 06:41:32,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:41:32,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241360361] [2024-12-02 06:41:32,496 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:41:32,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:41:32,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:41:32,554 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 06:41:32,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:41:32,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241360361] [2024-12-02 06:41:32,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241360361] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:41:32,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:41:32,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:41:32,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173078866] [2024-12-02 06:41:32,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:41:32,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:41:32,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:41:32,556 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:41:32,556 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:41:32,556 INFO L87 Difference]: Start difference. First operand 2841 states and 4441 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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 06:41:32,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:41:32,603 INFO L93 Difference]: Finished difference Result 5293 states and 8075 transitions. [2024-12-02 06:41:32,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:41:32,603 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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 69 [2024-12-02 06:41:32,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:41:32,627 INFO L225 Difference]: With dead ends: 5293 [2024-12-02 06:41:32,627 INFO L226 Difference]: Without dead ends: 4003 [2024-12-02 06:41:32,630 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 06:41:32,630 INFO L435 NwaCegarLoop]: 1606 mSDtfsCounter, 1499 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1499 SdHoareTripleChecker+Valid, 1707 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 06:41:32,631 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1499 Valid, 1707 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:41:32,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4003 states. [2024-12-02 06:41:32,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4003 to 4001. [2024-12-02 06:41:32,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4001 states, 3999 states have (on average 1.52863215803951) internal successors, (6113), 4000 states have internal predecessors, (6113), 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 06:41:32,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4001 states to 4001 states and 6113 transitions. [2024-12-02 06:41:32,755 INFO L78 Accepts]: Start accepts. Automaton has 4001 states and 6113 transitions. Word has length 69 [2024-12-02 06:41:32,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:41:32,756 INFO L471 AbstractCegarLoop]: Abstraction has 4001 states and 6113 transitions. [2024-12-02 06:41:32,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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 06:41:32,756 INFO L276 IsEmpty]: Start isEmpty. Operand 4001 states and 6113 transitions. [2024-12-02 06:41:32,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-12-02 06:41:32,757 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:41:32,757 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, 1, 1] [2024-12-02 06:41:32,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 06:41:32,757 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:41:32,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:41:32,758 INFO L85 PathProgramCache]: Analyzing trace with hash 15485707, now seen corresponding path program 1 times [2024-12-02 06:41:32,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:41:32,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751761484] [2024-12-02 06:41:32,758 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:41:32,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:41:32,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:41:32,813 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 06:41:32,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:41:32,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751761484] [2024-12-02 06:41:32,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751761484] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:41:32,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:41:32,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:41:32,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515100661] [2024-12-02 06:41:32,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:41:32,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:41:32,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:41:32,814 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:41:32,814 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:41:32,814 INFO L87 Difference]: Start difference. First operand 4001 states and 6113 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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 06:41:32,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:41:32,877 INFO L93 Difference]: Finished difference Result 8645 states and 12867 transitions. [2024-12-02 06:41:32,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:41:32,877 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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 69 [2024-12-02 06:41:32,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:41:32,896 INFO L225 Difference]: With dead ends: 8645 [2024-12-02 06:41:32,896 INFO L226 Difference]: Without dead ends: 6195 [2024-12-02 06:41:32,900 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 06:41:32,900 INFO L435 NwaCegarLoop]: 1622 mSDtfsCounter, 1507 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1507 SdHoareTripleChecker+Valid, 1707 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 06:41:32,901 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1507 Valid, 1707 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:41:32,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6195 states. [2024-12-02 06:41:33,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6195 to 6193. [2024-12-02 06:41:33,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6193 states, 6191 states have (on average 1.4861896301082216) internal successors, (9201), 6192 states have internal predecessors, (9201), 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 06:41:33,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6193 states to 6193 states and 9201 transitions. [2024-12-02 06:41:33,058 INFO L78 Accepts]: Start accepts. Automaton has 6193 states and 9201 transitions. Word has length 69 [2024-12-02 06:41:33,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:41:33,058 INFO L471 AbstractCegarLoop]: Abstraction has 6193 states and 9201 transitions. [2024-12-02 06:41:33,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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 06:41:33,059 INFO L276 IsEmpty]: Start isEmpty. Operand 6193 states and 9201 transitions. [2024-12-02 06:41:33,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-12-02 06:41:33,059 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:41:33,059 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, 1, 1, 1, 1] [2024-12-02 06:41:33,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 06:41:33,060 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:41:33,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:41:33,060 INFO L85 PathProgramCache]: Analyzing trace with hash -2036636858, now seen corresponding path program 1 times [2024-12-02 06:41:33,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:41:33,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518772386] [2024-12-02 06:41:33,060 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:41:33,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:41:33,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:41:33,104 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 06:41:33,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:41:33,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518772386] [2024-12-02 06:41:33,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518772386] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:41:33,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:41:33,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:41:33,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188706732] [2024-12-02 06:41:33,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:41:33,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:41:33,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:41:33,105 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:41:33,105 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:41:33,105 INFO L87 Difference]: Start difference. First operand 6193 states and 9201 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 06:41:33,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:41:33,214 INFO L93 Difference]: Finished difference Result 11064 states and 16311 transitions. [2024-12-02 06:41:33,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:41:33,214 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 71 [2024-12-02 06:41:33,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:41:33,228 INFO L225 Difference]: With dead ends: 11064 [2024-12-02 06:41:33,228 INFO L226 Difference]: Without dead ends: 8437 [2024-12-02 06:41:33,230 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 06:41:33,231 INFO L435 NwaCegarLoop]: 1627 mSDtfsCounter, 1506 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 1708 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 06:41:33,231 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1506 Valid, 1708 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:41:33,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8437 states. [2024-12-02 06:41:33,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8437 to 8435. [2024-12-02 06:41:33,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8435 states, 8433 states have (on average 1.4669749792481916) internal successors, (12371), 8434 states have internal predecessors, (12371), 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 06:41:33,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8435 states to 8435 states and 12371 transitions. [2024-12-02 06:41:33,362 INFO L78 Accepts]: Start accepts. Automaton has 8435 states and 12371 transitions. Word has length 71 [2024-12-02 06:41:33,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:41:33,362 INFO L471 AbstractCegarLoop]: Abstraction has 8435 states and 12371 transitions. [2024-12-02 06:41:33,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 06:41:33,362 INFO L276 IsEmpty]: Start isEmpty. Operand 8435 states and 12371 transitions. [2024-12-02 06:41:33,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-12-02 06:41:33,364 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:41:33,365 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:41:33,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 06:41:33,365 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:41:33,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:41:33,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1790597010, now seen corresponding path program 1 times [2024-12-02 06:41:33,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:41:33,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251846992] [2024-12-02 06:41:33,366 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:41:33,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:41:33,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:41:33,583 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-02 06:41:33,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:41:33,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251846992] [2024-12-02 06:41:33,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251846992] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:41:33,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:41:33,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 06:41:33,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495286365] [2024-12-02 06:41:33,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:41:33,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 06:41:33,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:41:33,584 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 06:41:33,584 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 06:41:33,584 INFO L87 Difference]: Start difference. First operand 8435 states and 12371 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 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 06:41:34,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:41:34,338 INFO L93 Difference]: Finished difference Result 51169 states and 73498 transitions. [2024-12-02 06:41:34,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 06:41:34,338 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 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 06:41:34,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:41:34,482 INFO L225 Difference]: With dead ends: 51169 [2024-12-02 06:41:34,482 INFO L226 Difference]: Without dead ends: 44287 [2024-12-02 06:41:34,489 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-12-02 06:41:34,490 INFO L435 NwaCegarLoop]: 1642 mSDtfsCounter, 8109 mSDsluCounter, 2226 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8109 SdHoareTripleChecker+Valid, 3868 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:41:34,490 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8109 Valid, 3868 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:41:34,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44287 states. [2024-12-02 06:41:34,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44287 to 15315. [2024-12-02 06:41:34,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15315 states, 15313 states have (on average 1.4452426043231241) internal successors, (22131), 15314 states have internal predecessors, (22131), 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 06:41:34,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15315 states to 15315 states and 22131 transitions. [2024-12-02 06:41:34,927 INFO L78 Accepts]: Start accepts. Automaton has 15315 states and 22131 transitions. Word has length 90 [2024-12-02 06:41:34,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:41:34,927 INFO L471 AbstractCegarLoop]: Abstraction has 15315 states and 22131 transitions. [2024-12-02 06:41:34,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 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 06:41:34,928 INFO L276 IsEmpty]: Start isEmpty. Operand 15315 states and 22131 transitions. [2024-12-02 06:41:34,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-12-02 06:41:34,931 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:41:34,932 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:41:34,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 06:41:34,932 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:41:34,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:41:34,932 INFO L85 PathProgramCache]: Analyzing trace with hash -552334994, now seen corresponding path program 1 times [2024-12-02 06:41:34,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:41:34,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370656375] [2024-12-02 06:41:34,933 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:41:34,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:41:34,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:41:35,132 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-12-02 06:41:35,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:41:35,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370656375] [2024-12-02 06:41:35,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370656375] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:41:35,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:41:35,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 06:41:35,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776153868] [2024-12-02 06:41:35,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:41:35,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 06:41:35,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:41:35,134 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 06:41:35,134 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 06:41:35,134 INFO L87 Difference]: Start difference. First operand 15315 states and 22131 transitions. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 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 06:41:36,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:41:36,015 INFO L93 Difference]: Finished difference Result 58049 states and 83258 transitions. [2024-12-02 06:41:36,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 06:41:36,015 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 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 06:41:36,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:41:36,100 INFO L225 Difference]: With dead ends: 58049 [2024-12-02 06:41:36,100 INFO L226 Difference]: Without dead ends: 51167 [2024-12-02 06:41:36,116 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-12-02 06:41:36,116 INFO L435 NwaCegarLoop]: 1639 mSDtfsCounter, 8154 mSDsluCounter, 2178 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8154 SdHoareTripleChecker+Valid, 3817 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:41:36,117 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8154 Valid, 3817 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:41:36,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51167 states. [2024-12-02 06:41:36,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51167 to 25651. [2024-12-02 06:41:36,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25651 states, 25649 states have (on average 1.4305041132207883) internal successors, (36691), 25650 states have internal predecessors, (36691), 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 06:41:37,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25651 states to 25651 states and 36691 transitions. [2024-12-02 06:41:37,007 INFO L78 Accepts]: Start accepts. Automaton has 25651 states and 36691 transitions. Word has length 90 [2024-12-02 06:41:37,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:41:37,008 INFO L471 AbstractCegarLoop]: Abstraction has 25651 states and 36691 transitions. [2024-12-02 06:41:37,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 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 06:41:37,008 INFO L276 IsEmpty]: Start isEmpty. Operand 25651 states and 36691 transitions. [2024-12-02 06:41:37,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-12-02 06:41:37,011 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:41:37,011 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:41:37,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 06:41:37,011 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:41:37,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:41:37,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1527163502, now seen corresponding path program 1 times [2024-12-02 06:41:37,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:41:37,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787600198] [2024-12-02 06:41:37,012 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:41:37,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:41:37,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:41:37,162 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-12-02 06:41:37,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:41:37,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787600198] [2024-12-02 06:41:37,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787600198] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:41:37,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:41:37,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 06:41:37,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837404545] [2024-12-02 06:41:37,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:41:37,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 06:41:37,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:41:37,163 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 06:41:37,163 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 06:41:37,164 INFO L87 Difference]: Start difference. First operand 25651 states and 36691 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 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 06:41:38,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:41:38,002 INFO L93 Difference]: Finished difference Result 64929 states and 93018 transitions. [2024-12-02 06:41:38,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 06:41:38,003 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 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 06:41:38,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:41:38,060 INFO L225 Difference]: With dead ends: 64929 [2024-12-02 06:41:38,060 INFO L226 Difference]: Without dead ends: 58047 [2024-12-02 06:41:38,071 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-12-02 06:41:38,072 INFO L435 NwaCegarLoop]: 1636 mSDtfsCounter, 8208 mSDsluCounter, 2161 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8208 SdHoareTripleChecker+Valid, 3797 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:41:38,072 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8208 Valid, 3797 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:41:38,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58047 states. [2024-12-02 06:41:38,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58047 to 32531. [2024-12-02 06:41:38,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32531 states, 32529 states have (on average 1.4279873343785545) internal successors, (46451), 32530 states have internal predecessors, (46451), 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 06:41:38,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32531 states to 32531 states and 46451 transitions. [2024-12-02 06:41:38,938 INFO L78 Accepts]: Start accepts. Automaton has 32531 states and 46451 transitions. Word has length 90 [2024-12-02 06:41:38,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:41:38,938 INFO L471 AbstractCegarLoop]: Abstraction has 32531 states and 46451 transitions. [2024-12-02 06:41:38,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 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 06:41:38,938 INFO L276 IsEmpty]: Start isEmpty. Operand 32531 states and 46451 transitions. [2024-12-02 06:41:38,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-12-02 06:41:38,940 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:41:38,940 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:41:38,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 06:41:38,941 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:41:38,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:41:38,941 INFO L85 PathProgramCache]: Analyzing trace with hash -986870930, now seen corresponding path program 1 times [2024-12-02 06:41:38,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:41:38,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277579815] [2024-12-02 06:41:38,941 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:41:38,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:41:38,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:41:39,127 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 06:41:39,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:41:39,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277579815] [2024-12-02 06:41:39,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277579815] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:41:39,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:41:39,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 06:41:39,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218318646] [2024-12-02 06:41:39,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:41:39,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 06:41:39,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:41:39,128 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 06:41:39,128 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 06:41:39,129 INFO L87 Difference]: Start difference. First operand 32531 states and 46451 transitions. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 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 06:41:40,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:41:40,304 INFO L93 Difference]: Finished difference Result 71809 states and 102778 transitions. [2024-12-02 06:41:40,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 06:41:40,305 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 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 90 [2024-12-02 06:41:40,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:41:40,355 INFO L225 Difference]: With dead ends: 71809 [2024-12-02 06:41:40,355 INFO L226 Difference]: Without dead ends: 64927 [2024-12-02 06:41:40,368 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-12-02 06:41:40,368 INFO L435 NwaCegarLoop]: 1641 mSDtfsCounter, 8112 mSDsluCounter, 2247 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8112 SdHoareTripleChecker+Valid, 3888 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:41:40,369 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8112 Valid, 3888 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:41:40,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64927 states. [2024-12-02 06:41:41,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64927 to 39411. [2024-12-02 06:41:41,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39411 states, 39409 states have (on average 1.4263493110710752) internal successors, (56211), 39410 states have internal predecessors, (56211), 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 06:41:41,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39411 states to 39411 states and 56211 transitions. [2024-12-02 06:41:41,643 INFO L78 Accepts]: Start accepts. Automaton has 39411 states and 56211 transitions. Word has length 90 [2024-12-02 06:41:41,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:41:41,643 INFO L471 AbstractCegarLoop]: Abstraction has 39411 states and 56211 transitions. [2024-12-02 06:41:41,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 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 06:41:41,643 INFO L276 IsEmpty]: Start isEmpty. Operand 39411 states and 56211 transitions. [2024-12-02 06:41:41,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-12-02 06:41:41,647 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:41:41,647 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:41:41,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 06:41:41,647 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:41:41,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:41:41,648 INFO L85 PathProgramCache]: Analyzing trace with hash -2054453394, now seen corresponding path program 1 times [2024-12-02 06:41:41,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:41:41,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681904083] [2024-12-02 06:41:41,648 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:41:41,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:41:41,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:41:41,882 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 06:41:41,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:41:41,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681904083] [2024-12-02 06:41:41,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681904083] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:41:41,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:41:41,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 06:41:41,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295186491] [2024-12-02 06:41:41,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:41:41,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 06:41:41,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:41:41,883 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 06:41:41,883 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 06:41:41,884 INFO L87 Difference]: Start difference. First operand 39411 states and 56211 transitions. Second operand has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:41:43,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:41:43,352 INFO L93 Difference]: Finished difference Result 78689 states and 112538 transitions. [2024-12-02 06:41:43,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 06:41:43,353 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2024-12-02 06:41:43,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:41:43,408 INFO L225 Difference]: With dead ends: 78689 [2024-12-02 06:41:43,408 INFO L226 Difference]: Without dead ends: 71807 [2024-12-02 06:41:43,419 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-12-02 06:41:43,420 INFO L435 NwaCegarLoop]: 1642 mSDtfsCounter, 8044 mSDsluCounter, 2425 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8044 SdHoareTripleChecker+Valid, 4067 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:41:43,420 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8044 Valid, 4067 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:41:43,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71807 states. [2024-12-02 06:41:44,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71807 to 46291. [2024-12-02 06:41:44,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46291 states, 46289 states have (on average 1.4251982112380912) internal successors, (65971), 46290 states have internal predecessors, (65971), 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 06:41:44,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46291 states to 46291 states and 65971 transitions. [2024-12-02 06:41:44,417 INFO L78 Accepts]: Start accepts. Automaton has 46291 states and 65971 transitions. Word has length 90 [2024-12-02 06:41:44,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:41:44,417 INFO L471 AbstractCegarLoop]: Abstraction has 46291 states and 65971 transitions. [2024-12-02 06:41:44,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:41:44,417 INFO L276 IsEmpty]: Start isEmpty. Operand 46291 states and 65971 transitions. [2024-12-02 06:41:44,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-12-02 06:41:44,419 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:41:44,419 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1] [2024-12-02 06:41:44,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 06:41:44,420 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:41:44,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:41:44,420 INFO L85 PathProgramCache]: Analyzing trace with hash 168958598, now seen corresponding path program 1 times [2024-12-02 06:41:44,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:41:44,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309654527] [2024-12-02 06:41:44,420 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:41:44,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:41:44,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:41:44,581 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:41:44,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:41:44,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309654527] [2024-12-02 06:41:44,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309654527] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:41:44,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:41:44,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:41:44,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439263411] [2024-12-02 06:41:44,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:41:44,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:41:44,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:41:44,582 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:41:44,583 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:41:44,583 INFO L87 Difference]: Start difference. First operand 46291 states and 65971 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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 06:41:45,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:41:45,080 INFO L93 Difference]: Finished difference Result 77933 states and 111340 transitions. [2024-12-02 06:41:45,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:41:45,080 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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 06:41:45,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:41:45,115 INFO L225 Difference]: With dead ends: 77933 [2024-12-02 06:41:45,115 INFO L226 Difference]: Without dead ends: 33195 [2024-12-02 06:41:45,136 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 06:41:45,136 INFO L435 NwaCegarLoop]: 1613 mSDtfsCounter, 58 mSDsluCounter, 1550 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 3163 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 06:41:45,136 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 3163 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:41:45,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33195 states. [2024-12-02 06:41:45,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33195 to 33193. [2024-12-02 06:41:45,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33193 states, 33191 states have (on average 1.4300563405742521) internal successors, (47465), 33192 states have internal predecessors, (47465), 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 06:41:45,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33193 states to 33193 states and 47465 transitions. [2024-12-02 06:41:45,738 INFO L78 Accepts]: Start accepts. Automaton has 33193 states and 47465 transitions. Word has length 92 [2024-12-02 06:41:45,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:41:45,738 INFO L471 AbstractCegarLoop]: Abstraction has 33193 states and 47465 transitions. [2024-12-02 06:41:45,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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 06:41:45,738 INFO L276 IsEmpty]: Start isEmpty. Operand 33193 states and 47465 transitions. [2024-12-02 06:41:45,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-12-02 06:41:45,739 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:41:45,739 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:41:45,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 06:41:45,739 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:41:45,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:41:45,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1616712425, now seen corresponding path program 1 times [2024-12-02 06:41:45,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:41:45,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021213963] [2024-12-02 06:41:45,740 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:41:45,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:41:45,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:41:45,897 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-02 06:41:45,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:41:45,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021213963] [2024-12-02 06:41:45,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021213963] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:41:45,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:41:45,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 06:41:45,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939835442] [2024-12-02 06:41:45,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:41:45,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 06:41:45,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:41:45,899 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 06:41:45,899 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 06:41:45,899 INFO L87 Difference]: Start difference. First operand 33193 states and 47465 transitions. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 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 06:41:46,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:41:46,930 INFO L93 Difference]: Finished difference Result 62391 states and 89328 transitions. [2024-12-02 06:41:46,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 06:41:46,930 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 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 06:41:46,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:41:46,981 INFO L225 Difference]: With dead ends: 62391 [2024-12-02 06:41:46,981 INFO L226 Difference]: Without dead ends: 57525 [2024-12-02 06:41:46,994 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-12-02 06:41:46,995 INFO L435 NwaCegarLoop]: 1633 mSDtfsCounter, 8058 mSDsluCounter, 2351 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8058 SdHoareTripleChecker+Valid, 3984 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:41:46,995 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8058 Valid, 3984 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:41:47,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57525 states. [2024-12-02 06:41:48,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57525 to 38057. [2024-12-02 06:41:48,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38057 states, 38055 states have (on average 1.4289055314676127) internal successors, (54377), 38056 states have internal predecessors, (54377), 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 06:41:48,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38057 states to 38057 states and 54377 transitions. [2024-12-02 06:41:48,099 INFO L78 Accepts]: Start accepts. Automaton has 38057 states and 54377 transitions. Word has length 92 [2024-12-02 06:41:48,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:41:48,099 INFO L471 AbstractCegarLoop]: Abstraction has 38057 states and 54377 transitions. [2024-12-02 06:41:48,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 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 06:41:48,099 INFO L276 IsEmpty]: Start isEmpty. Operand 38057 states and 54377 transitions. [2024-12-02 06:41:48,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-12-02 06:41:48,101 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:41:48,101 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2024-12-02 06:41:48,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 06:41:48,102 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:41:48,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:41:48,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1117757048, now seen corresponding path program 1 times [2024-12-02 06:41:48,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:41:48,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452777154] [2024-12-02 06:41:48,102 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:41:48,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:41:48,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:41:48,200 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:41:48,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:41:48,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452777154] [2024-12-02 06:41:48,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452777154] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:41:48,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:41:48,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:41:48,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775385232] [2024-12-02 06:41:48,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:41:48,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:41:48,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:41:48,202 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:41:48,202 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:41:48,202 INFO L87 Difference]: Start difference. First operand 38057 states and 54377 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:41:48,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:41:48,747 INFO L93 Difference]: Finished difference Result 56301 states and 80299 transitions. [2024-12-02 06:41:48,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:41:48,747 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-12-02 06:41:48,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:41:48,766 INFO L225 Difference]: With dead ends: 56301 [2024-12-02 06:41:48,766 INFO L226 Difference]: Without dead ends: 19819 [2024-12-02 06:41:48,786 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 06:41:48,787 INFO L435 NwaCegarLoop]: 1606 mSDtfsCounter, 53 mSDsluCounter, 1542 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 3148 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 06:41:48,787 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 3148 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:41:48,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19819 states. [2024-12-02 06:41:49,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19819 to 19817. [2024-12-02 06:41:49,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19817 states, 19815 states have (on average 1.4240222053999496) internal successors, (28217), 19816 states have internal predecessors, (28217), 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 06:41:49,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19817 states to 19817 states and 28217 transitions. [2024-12-02 06:41:49,286 INFO L78 Accepts]: Start accepts. Automaton has 19817 states and 28217 transitions. Word has length 93 [2024-12-02 06:41:49,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:41:49,286 INFO L471 AbstractCegarLoop]: Abstraction has 19817 states and 28217 transitions. [2024-12-02 06:41:49,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:41:49,286 INFO L276 IsEmpty]: Start isEmpty. Operand 19817 states and 28217 transitions. [2024-12-02 06:41:49,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 06:41:49,288 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:41:49,289 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:41:49,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 06:41:49,289 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:41:49,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:41:49,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1320571018, now seen corresponding path program 1 times [2024-12-02 06:41:49,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:41:49,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458615391] [2024-12-02 06:41:49,290 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:41:49,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:41:49,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:41:49,382 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:41:49,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:41:49,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458615391] [2024-12-02 06:41:49,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458615391] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:41:49,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:41:49,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:41:49,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59582512] [2024-12-02 06:41:49,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:41:49,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:41:49,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:41:49,384 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:41:49,384 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:41:49,384 INFO L87 Difference]: Start difference. First operand 19817 states and 28217 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 06:41:49,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:41:49,634 INFO L93 Difference]: Finished difference Result 28941 states and 41059 transitions. [2024-12-02 06:41:49,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:41:49,635 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 95 [2024-12-02 06:41:49,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:41:49,648 INFO L225 Difference]: With dead ends: 28941 [2024-12-02 06:41:49,648 INFO L226 Difference]: Without dead ends: 10699 [2024-12-02 06:41:49,658 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 06:41:49,660 INFO L435 NwaCegarLoop]: 1599 mSDtfsCounter, 50 mSDsluCounter, 1534 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 3133 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 06:41:49,660 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 3133 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:41:49,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10699 states. [2024-12-02 06:41:49,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10699 to 10697. [2024-12-02 06:41:49,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10697 states, 10695 states have (on average 1.4265544647031323) internal successors, (15257), 10696 states have internal predecessors, (15257), 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 06:41:49,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10697 states to 10697 states and 15257 transitions. [2024-12-02 06:41:49,866 INFO L78 Accepts]: Start accepts. Automaton has 10697 states and 15257 transitions. Word has length 95 [2024-12-02 06:41:49,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:41:49,866 INFO L471 AbstractCegarLoop]: Abstraction has 10697 states and 15257 transitions. [2024-12-02 06:41:49,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 06:41:49,866 INFO L276 IsEmpty]: Start isEmpty. Operand 10697 states and 15257 transitions. [2024-12-02 06:41:49,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-12-02 06:41:49,867 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:41:49,867 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:41:49,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 06:41:49,867 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:41:49,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:41:49,867 INFO L85 PathProgramCache]: Analyzing trace with hash -969080548, now seen corresponding path program 1 times [2024-12-02 06:41:49,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:41:49,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803585542] [2024-12-02 06:41:49,868 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:41:49,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:41:49,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:41:49,928 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:41:49,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:41:49,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803585542] [2024-12-02 06:41:49,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803585542] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:41:49,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:41:49,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:41:49,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101395641] [2024-12-02 06:41:49,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:41:49,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:41:49,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:41:49,929 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:41:49,929 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:41:49,929 INFO L87 Difference]: Start difference. First operand 10697 states and 15257 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 06:41:50,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:41:50,048 INFO L93 Difference]: Finished difference Result 15261 states and 21619 transitions. [2024-12-02 06:41:50,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:41:50,048 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 97 [2024-12-02 06:41:50,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:41:50,054 INFO L225 Difference]: With dead ends: 15261 [2024-12-02 06:41:50,054 INFO L226 Difference]: Without dead ends: 6139 [2024-12-02 06:41:50,057 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 06:41:50,057 INFO L435 NwaCegarLoop]: 1592 mSDtfsCounter, 47 mSDsluCounter, 1526 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 3118 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 06:41:50,057 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 3118 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:41:50,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6139 states. [2024-12-02 06:41:50,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6139 to 6137. [2024-12-02 06:41:50,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6137 states, 6135 states have (on average 1.4404237978810106) internal successors, (8837), 6136 states have internal predecessors, (8837), 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 06:41:50,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6137 states to 6137 states and 8837 transitions. [2024-12-02 06:41:50,167 INFO L78 Accepts]: Start accepts. Automaton has 6137 states and 8837 transitions. Word has length 97 [2024-12-02 06:41:50,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:41:50,167 INFO L471 AbstractCegarLoop]: Abstraction has 6137 states and 8837 transitions. [2024-12-02 06:41:50,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 06:41:50,167 INFO L276 IsEmpty]: Start isEmpty. Operand 6137 states and 8837 transitions. [2024-12-02 06:41:50,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-12-02 06:41:50,168 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:41:50,168 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:41:50,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 06:41:50,168 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:41:50,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:41:50,169 INFO L85 PathProgramCache]: Analyzing trace with hash -83832786, now seen corresponding path program 1 times [2024-12-02 06:41:50,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:41:50,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483985137] [2024-12-02 06:41:50,169 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:41:50,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:41:50,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:41:50,231 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:41:50,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:41:50,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483985137] [2024-12-02 06:41:50,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483985137] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:41:50,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:41:50,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:41:50,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503027192] [2024-12-02 06:41:50,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:41:50,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:41:50,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:41:50,233 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:41:50,233 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:41:50,233 INFO L87 Difference]: Start difference. First operand 6137 states and 8837 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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 06:41:50,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:41:50,292 INFO L93 Difference]: Finished difference Result 8421 states and 11989 transitions. [2024-12-02 06:41:50,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:41:50,293 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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 99 [2024-12-02 06:41:50,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:41:50,298 INFO L225 Difference]: With dead ends: 8421 [2024-12-02 06:41:50,298 INFO L226 Difference]: Without dead ends: 3859 [2024-12-02 06:41:50,300 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 06:41:50,301 INFO L435 NwaCegarLoop]: 1585 mSDtfsCounter, 44 mSDsluCounter, 1518 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 3103 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 06:41:50,301 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 3103 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:41:50,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3859 states. [2024-12-02 06:41:50,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3859 to 3857. [2024-12-02 06:41:50,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3857 states, 3855 states have (on average 1.467444876783398) internal successors, (5657), 3856 states have internal predecessors, (5657), 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 06:41:50,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3857 states to 3857 states and 5657 transitions. [2024-12-02 06:41:50,388 INFO L78 Accepts]: Start accepts. Automaton has 3857 states and 5657 transitions. Word has length 99 [2024-12-02 06:41:50,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:41:50,388 INFO L471 AbstractCegarLoop]: Abstraction has 3857 states and 5657 transitions. [2024-12-02 06:41:50,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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 06:41:50,388 INFO L276 IsEmpty]: Start isEmpty. Operand 3857 states and 5657 transitions. [2024-12-02 06:41:50,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-12-02 06:41:50,389 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:41:50,389 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:41:50,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 06:41:50,389 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:41:50,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:41:50,390 INFO L85 PathProgramCache]: Analyzing trace with hash -709435968, now seen corresponding path program 1 times [2024-12-02 06:41:50,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:41:50,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413197403] [2024-12-02 06:41:50,390 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:41:50,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:41:50,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:41:50,482 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:41:50,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:41:50,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413197403] [2024-12-02 06:41:50,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413197403] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:41:50,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:41:50,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:41:50,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591708264] [2024-12-02 06:41:50,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:41:50,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:41:50,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:41:50,484 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:41:50,484 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:41:50,484 INFO L87 Difference]: Start difference. First operand 3857 states and 5657 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 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 06:41:50,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:41:50,540 INFO L93 Difference]: Finished difference Result 5001 states and 7219 transitions. [2024-12-02 06:41:50,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:41:50,541 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 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 101 [2024-12-02 06:41:50,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:41:50,545 INFO L225 Difference]: With dead ends: 5001 [2024-12-02 06:41:50,546 INFO L226 Difference]: Without dead ends: 2719 [2024-12-02 06:41:50,547 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 06:41:50,548 INFO L435 NwaCegarLoop]: 1578 mSDtfsCounter, 41 mSDsluCounter, 1510 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 3088 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 06:41:50,548 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 3088 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:41:50,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2719 states. [2024-12-02 06:41:50,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2719 to 2717. [2024-12-02 06:41:50,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2717 states, 2715 states have (on average 1.503499079189687) internal successors, (4082), 2716 states have internal predecessors, (4082), 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 06:41:50,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2717 states to 2717 states and 4082 transitions. [2024-12-02 06:41:50,608 INFO L78 Accepts]: Start accepts. Automaton has 2717 states and 4082 transitions. Word has length 101 [2024-12-02 06:41:50,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:41:50,608 INFO L471 AbstractCegarLoop]: Abstraction has 2717 states and 4082 transitions. [2024-12-02 06:41:50,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 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 06:41:50,608 INFO L276 IsEmpty]: Start isEmpty. Operand 2717 states and 4082 transitions. [2024-12-02 06:41:50,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-12-02 06:41:50,609 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:41:50,609 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:41:50,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 06:41:50,609 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:41:50,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:41:50,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1744587218, now seen corresponding path program 1 times [2024-12-02 06:41:50,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:41:50,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824167431] [2024-12-02 06:41:50,610 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:41:50,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:41:50,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:41:51,378 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:41:51,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:41:51,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824167431] [2024-12-02 06:41:51,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824167431] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:41:51,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [646560448] [2024-12-02 06:41:51,378 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:41:51,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:41:51,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:41:51,380 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:41:51,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 06:41:51,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:41:51,519 INFO L256 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-12-02 06:41:51,525 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:41:51,940 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 6 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:41:51,940 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:41:52,330 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:41:52,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [646560448] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:41:52,331 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:41:52,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 7, 6] total 22 [2024-12-02 06:41:52,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759231569] [2024-12-02 06:41:52,331 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:41:52,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-12-02 06:41:52,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:41:52,332 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-12-02 06:41:52,332 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=392, Unknown=0, NotChecked=0, Total=462 [2024-12-02 06:41:52,333 INFO L87 Difference]: Start difference. First operand 2717 states and 4082 transitions. Second operand has 22 states, 22 states have (on average 13.454545454545455) internal successors, (296), 22 states have internal predecessors, (296), 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 06:41:56,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:41:56,513 INFO L93 Difference]: Finished difference Result 13443 states and 18464 transitions. [2024-12-02 06:41:56,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2024-12-02 06:41:56,513 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 13.454545454545455) internal successors, (296), 22 states have internal predecessors, (296), 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 103 [2024-12-02 06:41:56,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:41:56,522 INFO L225 Difference]: With dead ends: 13443 [2024-12-02 06:41:56,522 INFO L226 Difference]: Without dead ends: 12203 [2024-12-02 06:41:56,528 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2880 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1313, Invalid=7243, Unknown=0, NotChecked=0, Total=8556 [2024-12-02 06:41:56,528 INFO L435 NwaCegarLoop]: 1546 mSDtfsCounter, 23420 mSDsluCounter, 9539 mSDsCounter, 0 mSdLazyCounter, 1696 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23420 SdHoareTripleChecker+Valid, 11085 SdHoareTripleChecker+Invalid, 1847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 1696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-02 06:41:56,528 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23420 Valid, 11085 Invalid, 1847 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 1696 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-12-02 06:41:56,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12203 states. [2024-12-02 06:41:56,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12203 to 11473. [2024-12-02 06:41:56,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11473 states, 11471 states have (on average 1.3646587045593235) internal successors, (15654), 11472 states have internal predecessors, (15654), 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 06:41:56,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11473 states to 11473 states and 15654 transitions. [2024-12-02 06:41:56,848 INFO L78 Accepts]: Start accepts. Automaton has 11473 states and 15654 transitions. Word has length 103 [2024-12-02 06:41:56,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:41:56,849 INFO L471 AbstractCegarLoop]: Abstraction has 11473 states and 15654 transitions. [2024-12-02 06:41:56,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 13.454545454545455) internal successors, (296), 22 states have internal predecessors, (296), 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 06:41:56,849 INFO L276 IsEmpty]: Start isEmpty. Operand 11473 states and 15654 transitions. [2024-12-02 06:41:56,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-12-02 06:41:56,850 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:41:56,850 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:41:56,856 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 06:41:57,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:41:57,051 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:41:57,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:41:57,051 INFO L85 PathProgramCache]: Analyzing trace with hash -520471001, now seen corresponding path program 1 times [2024-12-02 06:41:57,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:41:57,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60885400] [2024-12-02 06:41:57,051 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:41:57,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:41:57,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:41:58,152 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:41:58,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:41:58,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60885400] [2024-12-02 06:41:58,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60885400] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:41:58,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [172602962] [2024-12-02 06:41:58,152 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:41:58,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:41:58,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:41:58,154 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:41:58,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 06:41:58,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:41:58,288 INFO L256 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 06:41:58,291 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:41:58,714 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:41:58,714 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:41:59,942 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:41:59,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [172602962] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:41:59,942 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:41:59,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 27 [2024-12-02 06:41:59,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885999920] [2024-12-02 06:41:59,943 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:41:59,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-12-02 06:41:59,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:41:59,943 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-12-02 06:41:59,943 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=660, Unknown=0, NotChecked=0, Total=756 [2024-12-02 06:41:59,944 INFO L87 Difference]: Start difference. First operand 11473 states and 15654 transitions. Second operand has 28 states, 28 states have (on average 9.428571428571429) internal successors, (264), 27 states have internal predecessors, (264), 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 06:42:02,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:42:02,313 INFO L93 Difference]: Finished difference Result 48667 states and 64762 transitions. [2024-12-02 06:42:02,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-12-02 06:42:02,314 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 9.428571428571429) internal successors, (264), 27 states have internal predecessors, (264), 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 104 [2024-12-02 06:42:02,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:42:02,337 INFO L225 Difference]: With dead ends: 48667 [2024-12-02 06:42:02,337 INFO L226 Difference]: Without dead ends: 38913 [2024-12-02 06:42:02,344 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 613 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=608, Invalid=2362, Unknown=0, NotChecked=0, Total=2970 [2024-12-02 06:42:02,344 INFO L435 NwaCegarLoop]: 1524 mSDtfsCounter, 21318 mSDsluCounter, 6580 mSDsCounter, 0 mSdLazyCounter, 901 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21318 SdHoareTripleChecker+Valid, 8104 SdHoareTripleChecker+Invalid, 934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 901 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 06:42:02,344 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21318 Valid, 8104 Invalid, 934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 901 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 06:42:02,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38913 states. [2024-12-02 06:42:03,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38913 to 38693. [2024-12-02 06:42:03,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38693 states, 38691 states have (on average 1.3246749890155334) internal successors, (51253), 38692 states have internal predecessors, (51253), 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 06:42:03,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38693 states to 38693 states and 51253 transitions. [2024-12-02 06:42:03,384 INFO L78 Accepts]: Start accepts. Automaton has 38693 states and 51253 transitions. Word has length 104 [2024-12-02 06:42:03,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:42:03,384 INFO L471 AbstractCegarLoop]: Abstraction has 38693 states and 51253 transitions. [2024-12-02 06:42:03,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 9.428571428571429) internal successors, (264), 27 states have internal predecessors, (264), 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 06:42:03,384 INFO L276 IsEmpty]: Start isEmpty. Operand 38693 states and 51253 transitions. [2024-12-02 06:42:03,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-12-02 06:42:03,386 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:42:03,386 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:42:03,392 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 06:42:03,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-12-02 06:42:03,586 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:42:03,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:42:03,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1922015015, now seen corresponding path program 1 times [2024-12-02 06:42:03,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:42:03,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246991216] [2024-12-02 06:42:03,587 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:42:03,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:42:03,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:42:04,081 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:42:04,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:42:04,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246991216] [2024-12-02 06:42:04,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246991216] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:42:04,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1843840694] [2024-12-02 06:42:04,081 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:42:04,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:42:04,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:42:04,083 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:42:04,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 06:42:04,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:42:04,215 INFO L256 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 06:42:04,217 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:42:04,753 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:42:04,753 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:42:05,711 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:42:05,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1843840694] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:42:05,712 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:42:05,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 26 [2024-12-02 06:42:05,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264386843] [2024-12-02 06:42:05,712 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:42:05,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-12-02 06:42:05,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:42:05,713 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-12-02 06:42:05,713 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=590, Unknown=0, NotChecked=0, Total=702 [2024-12-02 06:42:05,714 INFO L87 Difference]: Start difference. First operand 38693 states and 51253 transitions. Second operand has 27 states, 27 states have (on average 10.296296296296296) internal successors, (278), 26 states have internal predecessors, (278), 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 06:42:07,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:42:07,119 INFO L93 Difference]: Finished difference Result 74825 states and 98794 transitions. [2024-12-02 06:42:07,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 06:42:07,119 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 10.296296296296296) internal successors, (278), 26 states have internal predecessors, (278), 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 104 [2024-12-02 06:42:07,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:42:07,164 INFO L225 Difference]: With dead ends: 74825 [2024-12-02 06:42:07,164 INFO L226 Difference]: Without dead ends: 39921 [2024-12-02 06:42:07,185 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=315, Invalid=1091, Unknown=0, NotChecked=0, Total=1406 [2024-12-02 06:42:07,185 INFO L435 NwaCegarLoop]: 1526 mSDtfsCounter, 15597 mSDsluCounter, 6376 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15597 SdHoareTripleChecker+Valid, 7902 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 06:42:07,185 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15597 Valid, 7902 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 06:42:07,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39921 states. [2024-12-02 06:42:08,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39921 to 37449. [2024-12-02 06:42:08,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37449 states, 37447 states have (on average 1.3113199989318236) internal successors, (49105), 37448 states have internal predecessors, (49105), 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 06:42:08,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37449 states to 37449 states and 49105 transitions. [2024-12-02 06:42:08,298 INFO L78 Accepts]: Start accepts. Automaton has 37449 states and 49105 transitions. Word has length 104 [2024-12-02 06:42:08,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:42:08,298 INFO L471 AbstractCegarLoop]: Abstraction has 37449 states and 49105 transitions. [2024-12-02 06:42:08,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 10.296296296296296) internal successors, (278), 26 states have internal predecessors, (278), 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 06:42:08,298 INFO L276 IsEmpty]: Start isEmpty. Operand 37449 states and 49105 transitions. [2024-12-02 06:42:08,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-12-02 06:42:08,299 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:42:08,299 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:42:08,305 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 06:42:08,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:42:08,499 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:42:08,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:42:08,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1393813607, now seen corresponding path program 1 times [2024-12-02 06:42:08,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:42:08,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450303294] [2024-12-02 06:42:08,500 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:42:08,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:42:08,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:42:09,158 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 06:42:09,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:42:09,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450303294] [2024-12-02 06:42:09,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450303294] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:42:09,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2118876602] [2024-12-02 06:42:09,158 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:42:09,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:42:09,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:42:09,160 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:42:09,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 06:42:09,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:42:09,278 INFO L256 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-02 06:42:09,280 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:42:09,753 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 06:42:09,753 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:42:10,834 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 06:42:10,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2118876602] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:42:10,834 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:42:10,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 27 [2024-12-02 06:42:10,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509018645] [2024-12-02 06:42:10,834 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:42:10,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-12-02 06:42:10,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:42:10,835 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-12-02 06:42:10,835 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=661, Unknown=0, NotChecked=0, Total=756 [2024-12-02 06:42:10,835 INFO L87 Difference]: Start difference. First operand 37449 states and 49105 transitions. Second operand has 28 states, 28 states have (on average 10.142857142857142) internal successors, (284), 27 states have internal predecessors, (284), 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 06:42:15,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:42:15,241 INFO L93 Difference]: Finished difference Result 113265 states and 147889 transitions. [2024-12-02 06:42:15,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-12-02 06:42:15,242 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 10.142857142857142) internal successors, (284), 27 states have internal predecessors, (284), 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 104 [2024-12-02 06:42:15,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:42:15,296 INFO L225 Difference]: With dead ends: 113265 [2024-12-02 06:42:15,296 INFO L226 Difference]: Without dead ends: 77517 [2024-12-02 06:42:15,319 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 767 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=697, Invalid=2963, Unknown=0, NotChecked=0, Total=3660 [2024-12-02 06:42:15,319 INFO L435 NwaCegarLoop]: 1514 mSDtfsCounter, 21953 mSDsluCounter, 5456 mSDsCounter, 0 mSdLazyCounter, 1176 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21953 SdHoareTripleChecker+Valid, 6970 SdHoareTripleChecker+Invalid, 1212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 06:42:15,320 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21953 Valid, 6970 Invalid, 1212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1176 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 06:42:15,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77517 states. [2024-12-02 06:42:17,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77517 to 71345. [2024-12-02 06:42:17,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71345 states, 71343 states have (on average 1.2829990328413439) internal successors, (91533), 71344 states have internal predecessors, (91533), 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 06:42:17,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71345 states to 71345 states and 91533 transitions. [2024-12-02 06:42:17,550 INFO L78 Accepts]: Start accepts. Automaton has 71345 states and 91533 transitions. Word has length 104 [2024-12-02 06:42:17,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:42:17,550 INFO L471 AbstractCegarLoop]: Abstraction has 71345 states and 91533 transitions. [2024-12-02 06:42:17,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 10.142857142857142) internal successors, (284), 27 states have internal predecessors, (284), 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 06:42:17,550 INFO L276 IsEmpty]: Start isEmpty. Operand 71345 states and 91533 transitions. [2024-12-02 06:42:17,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-12-02 06:42:17,552 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:42:17,552 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:42:17,561 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 06:42:17,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:42:17,753 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:42:17,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:42:17,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1918155225, now seen corresponding path program 1 times [2024-12-02 06:42:17,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:42:17,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485737452] [2024-12-02 06:42:17,753 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:42:17,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:42:17,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:42:18,072 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 06:42:18,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:42:18,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485737452] [2024-12-02 06:42:18,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485737452] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:42:18,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [878627374] [2024-12-02 06:42:18,073 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:42:18,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:42:18,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:42:18,074 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:42:18,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 06:42:18,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:42:18,198 INFO L256 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 06:42:18,199 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:42:18,545 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 06:42:18,545 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:42:19,156 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 06:42:19,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [878627374] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:42:19,156 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:42:19,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 20 [2024-12-02 06:42:19,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876269943] [2024-12-02 06:42:19,156 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:42:19,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-12-02 06:42:19,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:42:19,157 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-12-02 06:42:19,157 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=340, Unknown=0, NotChecked=0, Total=420 [2024-12-02 06:42:19,157 INFO L87 Difference]: Start difference. First operand 71345 states and 91533 transitions. Second operand has 21 states, 21 states have (on average 10.904761904761905) internal successors, (229), 20 states have internal predecessors, (229), 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 06:42:23,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:42:23,557 INFO L93 Difference]: Finished difference Result 211621 states and 271884 transitions. [2024-12-02 06:42:23,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 06:42:23,557 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 10.904761904761905) internal successors, (229), 20 states have internal predecessors, (229), 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 106 [2024-12-02 06:42:23,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:42:23,671 INFO L225 Difference]: With dead ends: 211621 [2024-12-02 06:42:23,671 INFO L226 Difference]: Without dead ends: 143843 [2024-12-02 06:42:23,701 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=237, Invalid=693, Unknown=0, NotChecked=0, Total=930 [2024-12-02 06:42:23,702 INFO L435 NwaCegarLoop]: 1557 mSDtfsCounter, 10614 mSDsluCounter, 4923 mSDsCounter, 0 mSdLazyCounter, 517 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10614 SdHoareTripleChecker+Valid, 6480 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 06:42:23,702 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10614 Valid, 6480 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 517 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 06:42:23,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143843 states. [2024-12-02 06:42:28,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143843 to 142367. [2024-12-02 06:42:28,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142367 states, 142365 states have (on average 1.271176202015945) internal successors, (180971), 142366 states have internal predecessors, (180971), 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 06:42:28,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142367 states to 142367 states and 180971 transitions. [2024-12-02 06:42:28,506 INFO L78 Accepts]: Start accepts. Automaton has 142367 states and 180971 transitions. Word has length 106 [2024-12-02 06:42:28,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:42:28,507 INFO L471 AbstractCegarLoop]: Abstraction has 142367 states and 180971 transitions. [2024-12-02 06:42:28,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 10.904761904761905) internal successors, (229), 20 states have internal predecessors, (229), 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 06:42:28,507 INFO L276 IsEmpty]: Start isEmpty. Operand 142367 states and 180971 transitions. [2024-12-02 06:42:28,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-12-02 06:42:28,510 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:42:28,510 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:42:28,518 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 06:42:28,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:42:28,710 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:42:28,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:42:28,711 INFO L85 PathProgramCache]: Analyzing trace with hash 920069993, now seen corresponding path program 1 times [2024-12-02 06:42:28,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:42:28,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946283369] [2024-12-02 06:42:28,711 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:42:28,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:42:28,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:42:28,956 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:42:28,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:42:28,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946283369] [2024-12-02 06:42:28,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946283369] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:42:28,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1835156452] [2024-12-02 06:42:28,956 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:42:28,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:42:28,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:42:28,958 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:42:28,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 06:42:29,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:42:29,110 INFO L256 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-02 06:42:29,111 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:42:29,507 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 06:42:29,507 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:42:30,245 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 06:42:30,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1835156452] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:42:30,245 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:42:30,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 25 [2024-12-02 06:42:30,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499536798] [2024-12-02 06:42:30,246 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:42:30,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-12-02 06:42:30,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:42:30,247 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-12-02 06:42:30,247 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=550, Unknown=0, NotChecked=0, Total=650 [2024-12-02 06:42:30,247 INFO L87 Difference]: Start difference. First operand 142367 states and 180971 transitions. Second operand has 26 states, 26 states have (on average 10.615384615384615) internal successors, (276), 25 states have internal predecessors, (276), 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 06:42:38,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:42:38,704 INFO L93 Difference]: Finished difference Result 355577 states and 452352 transitions. [2024-12-02 06:42:38,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-12-02 06:42:38,704 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 10.615384615384615) internal successors, (276), 25 states have internal predecessors, (276), 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 106 [2024-12-02 06:42:38,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:42:38,917 INFO L225 Difference]: With dead ends: 355577 [2024-12-02 06:42:38,917 INFO L226 Difference]: Without dead ends: 215015 [2024-12-02 06:42:38,981 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=499, Invalid=1853, Unknown=0, NotChecked=0, Total=2352 [2024-12-02 06:42:38,981 INFO L435 NwaCegarLoop]: 1547 mSDtfsCounter, 18660 mSDsluCounter, 6853 mSDsCounter, 0 mSdLazyCounter, 988 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18660 SdHoareTripleChecker+Valid, 8400 SdHoareTripleChecker+Invalid, 1011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 06:42:38,981 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18660 Valid, 8400 Invalid, 1011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 988 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 06:42:39,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215015 states. [2024-12-02 06:42:46,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215015 to 212751. [2024-12-02 06:42:46,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212751 states, 212749 states have (on average 1.2563114280208132) internal successors, (267279), 212750 states have internal predecessors, (267279), 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 06:42:47,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212751 states to 212751 states and 267279 transitions. [2024-12-02 06:42:47,134 INFO L78 Accepts]: Start accepts. Automaton has 212751 states and 267279 transitions. Word has length 106 [2024-12-02 06:42:47,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:42:47,134 INFO L471 AbstractCegarLoop]: Abstraction has 212751 states and 267279 transitions. [2024-12-02 06:42:47,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 10.615384615384615) internal successors, (276), 25 states have internal predecessors, (276), 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 06:42:47,134 INFO L276 IsEmpty]: Start isEmpty. Operand 212751 states and 267279 transitions. [2024-12-02 06:42:47,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-12-02 06:42:47,139 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:42:47,139 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:42:47,146 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 06:42:47,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:42:47,339 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:42:47,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:42:47,340 INFO L85 PathProgramCache]: Analyzing trace with hash -199933127, now seen corresponding path program 1 times [2024-12-02 06:42:47,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:42:47,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861647371] [2024-12-02 06:42:47,340 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:42:47,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:42:47,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:42:47,971 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 06:42:47,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:42:47,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861647371] [2024-12-02 06:42:47,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861647371] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:42:47,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [428720741] [2024-12-02 06:42:47,971 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:42:47,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:42:47,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:42:47,973 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:42:47,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 06:42:48,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:42:48,123 INFO L256 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-12-02 06:42:48,125 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:42:49,001 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:42:49,001 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:42:50,269 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:42:50,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [428720741] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:42:50,269 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:42:50,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 14, 16] total 39 [2024-12-02 06:42:50,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721545786] [2024-12-02 06:42:50,269 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:42:50,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2024-12-02 06:42:50,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:42:50,270 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2024-12-02 06:42:50,271 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=1303, Unknown=0, NotChecked=0, Total=1482 [2024-12-02 06:42:50,271 INFO L87 Difference]: Start difference. First operand 212751 states and 267279 transitions. Second operand has 39 states, 39 states have (on average 7.897435897435898) internal successors, (308), 39 states have internal predecessors, (308), 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 06:43:00,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:43:00,529 INFO L93 Difference]: Finished difference Result 299205 states and 374776 transitions. [2024-12-02 06:43:00,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-12-02 06:43:00,530 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 7.897435897435898) internal successors, (308), 39 states have internal predecessors, (308), 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 108 [2024-12-02 06:43:00,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:43:00,729 INFO L225 Difference]: With dead ends: 299205 [2024-12-02 06:43:00,729 INFO L226 Difference]: Without dead ends: 216515 [2024-12-02 06:43:00,775 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1782 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1579, Invalid=5561, Unknown=0, NotChecked=0, Total=7140 [2024-12-02 06:43:00,775 INFO L435 NwaCegarLoop]: 1528 mSDtfsCounter, 7647 mSDsluCounter, 20306 mSDsCounter, 0 mSdLazyCounter, 1675 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7647 SdHoareTripleChecker+Valid, 21834 SdHoareTripleChecker+Invalid, 1719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 06:43:00,775 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7647 Valid, 21834 Invalid, 1719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1675 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 06:43:00,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216515 states. [2024-12-02 06:43:07,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216515 to 188495. [2024-12-02 06:43:07,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188495 states, 188493 states have (on average 1.2524337773816534) internal successors, (236075), 188494 states have internal predecessors, (236075), 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 06:43:07,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188495 states to 188495 states and 236075 transitions. [2024-12-02 06:43:07,755 INFO L78 Accepts]: Start accepts. Automaton has 188495 states and 236075 transitions. Word has length 108 [2024-12-02 06:43:07,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:43:07,756 INFO L471 AbstractCegarLoop]: Abstraction has 188495 states and 236075 transitions. [2024-12-02 06:43:07,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 7.897435897435898) internal successors, (308), 39 states have internal predecessors, (308), 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 06:43:07,756 INFO L276 IsEmpty]: Start isEmpty. Operand 188495 states and 236075 transitions. [2024-12-02 06:43:07,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-12-02 06:43:07,758 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:43:07,758 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:43:07,765 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-02 06:43:07,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-12-02 06:43:07,959 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:43:07,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:43:07,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1816933945, now seen corresponding path program 1 times [2024-12-02 06:43:07,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:43:07,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274086095] [2024-12-02 06:43:07,959 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:43:07,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:43:07,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:43:08,606 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:43:08,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:43:08,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274086095] [2024-12-02 06:43:08,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274086095] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:43:08,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1981708006] [2024-12-02 06:43:08,606 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:43:08,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:43:08,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:43:08,608 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:43:08,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 06:43:08,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:43:08,773 INFO L256 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-12-02 06:43:08,775 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:43:10,230 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 06:43:10,230 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:43:11,512 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 06:43:11,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1981708006] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:43:11,512 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:43:11,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 15, 14] total 37 [2024-12-02 06:43:11,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620417363] [2024-12-02 06:43:11,513 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:43:11,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-12-02 06:43:11,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:43:11,513 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-12-02 06:43:11,514 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=1187, Unknown=0, NotChecked=0, Total=1332 [2024-12-02 06:43:11,514 INFO L87 Difference]: Start difference. First operand 188495 states and 236075 transitions. Second operand has 37 states, 37 states have (on average 7.621621621621622) internal successors, (282), 37 states have internal predecessors, (282), 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 06:43:36,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:43:36,422 INFO L93 Difference]: Finished difference Result 641601 states and 804604 transitions. [2024-12-02 06:43:36,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2024-12-02 06:43:36,423 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 7.621621621621622) internal successors, (282), 37 states have internal predecessors, (282), 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 108 [2024-12-02 06:43:36,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:43:36,991 INFO L225 Difference]: With dead ends: 641601 [2024-12-02 06:43:36,991 INFO L226 Difference]: Without dead ends: 567283 [2024-12-02 06:43:37,075 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4207 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=2478, Invalid=11328, Unknown=0, NotChecked=0, Total=13806 [2024-12-02 06:43:37,076 INFO L435 NwaCegarLoop]: 1597 mSDtfsCounter, 16460 mSDsluCounter, 25551 mSDsCounter, 0 mSdLazyCounter, 2593 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16460 SdHoareTripleChecker+Valid, 27148 SdHoareTripleChecker+Invalid, 2697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 2593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-12-02 06:43:37,076 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16460 Valid, 27148 Invalid, 2697 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [104 Valid, 2593 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-12-02 06:43:37,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567283 states. [2024-12-02 06:43:50,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567283 to 307731. [2024-12-02 06:43:51,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307731 states, 307729 states have (on average 1.2425348277217942) internal successors, (382364), 307730 states have internal predecessors, (382364), 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 06:43:51,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307731 states to 307731 states and 382364 transitions. [2024-12-02 06:43:51,758 INFO L78 Accepts]: Start accepts. Automaton has 307731 states and 382364 transitions. Word has length 108 [2024-12-02 06:43:51,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:43:51,758 INFO L471 AbstractCegarLoop]: Abstraction has 307731 states and 382364 transitions. [2024-12-02 06:43:51,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 7.621621621621622) internal successors, (282), 37 states have internal predecessors, (282), 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 06:43:51,758 INFO L276 IsEmpty]: Start isEmpty. Operand 307731 states and 382364 transitions. [2024-12-02 06:43:51,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-12-02 06:43:51,760 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:43:51,760 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:43:51,767 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-12-02 06:43:51,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:43:51,961 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:43:51,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:43:51,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1364235975, now seen corresponding path program 1 times [2024-12-02 06:43:51,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:43:51,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783982893] [2024-12-02 06:43:51,962 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:43:51,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:43:52,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:43:52,645 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 06:43:52,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:43:52,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783982893] [2024-12-02 06:43:52,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783982893] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:43:52,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1757463140] [2024-12-02 06:43:52,645 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:43:52,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:43:52,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:43:52,647 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:43:52,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-02 06:43:52,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:43:52,785 INFO L256 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-02 06:43:52,787 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:43:53,461 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 06:43:53,461 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:43:54,639 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 06:43:54,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1757463140] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:43:54,639 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:43:54,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 33 [2024-12-02 06:43:54,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851398700] [2024-12-02 06:43:54,639 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:43:54,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-12-02 06:43:54,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:43:54,640 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-12-02 06:43:54,640 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=955, Unknown=0, NotChecked=0, Total=1056 [2024-12-02 06:43:54,640 INFO L87 Difference]: Start difference. First operand 307731 states and 382364 transitions. Second operand has 33 states, 33 states have (on average 7.9393939393939394) internal successors, (262), 33 states have internal predecessors, (262), 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 06:44:16,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:44:16,845 INFO L93 Difference]: Finished difference Result 569432 states and 705669 transitions. [2024-12-02 06:44:16,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2024-12-02 06:44:16,845 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 7.9393939393939394) internal successors, (262), 33 states have internal predecessors, (262), 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 108 [2024-12-02 06:44:16,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:44:17,260 INFO L225 Difference]: With dead ends: 569432 [2024-12-02 06:44:17,260 INFO L226 Difference]: Without dead ends: 417236 [2024-12-02 06:44:17,338 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1544 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=1493, Invalid=4987, Unknown=0, NotChecked=0, Total=6480 [2024-12-02 06:44:17,339 INFO L435 NwaCegarLoop]: 1574 mSDtfsCounter, 14799 mSDsluCounter, 21949 mSDsCounter, 0 mSdLazyCounter, 1783 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14799 SdHoareTripleChecker+Valid, 23523 SdHoareTripleChecker+Invalid, 1826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 06:44:17,339 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14799 Valid, 23523 Invalid, 1826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1783 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 06:44:17,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417236 states. [2024-12-02 06:44:29,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417236 to 254821. [2024-12-02 06:44:29,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254821 states, 254819 states have (on average 1.2381769020363473) internal successors, (315511), 254820 states have internal predecessors, (315511), 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 06:44:29,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254821 states to 254821 states and 315511 transitions. [2024-12-02 06:44:29,935 INFO L78 Accepts]: Start accepts. Automaton has 254821 states and 315511 transitions. Word has length 108 [2024-12-02 06:44:29,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:44:29,935 INFO L471 AbstractCegarLoop]: Abstraction has 254821 states and 315511 transitions. [2024-12-02 06:44:29,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 7.9393939393939394) internal successors, (262), 33 states have internal predecessors, (262), 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 06:44:29,935 INFO L276 IsEmpty]: Start isEmpty. Operand 254821 states and 315511 transitions. [2024-12-02 06:44:29,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 06:44:29,936 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:44:29,937 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, 1, 1, 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 06:44:29,944 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-12-02 06:44:30,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-12-02 06:44:30,137 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:44:30,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:44:30,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1426607925, now seen corresponding path program 1 times [2024-12-02 06:44:30,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:44:30,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067329792] [2024-12-02 06:44:30,137 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:44:30,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:44:30,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:44:30,761 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:44:30,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:44:30,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067329792] [2024-12-02 06:44:30,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067329792] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:44:30,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [944521217] [2024-12-02 06:44:30,762 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:44:30,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:44:30,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:44:30,763 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:44:30,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-12-02 06:44:30,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:44:30,909 INFO L256 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-02 06:44:30,910 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:44:31,671 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:44:31,671 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:44:32,473 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:44:32,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [944521217] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:44:32,474 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:44:32,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 11] total 29 [2024-12-02 06:44:32,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545406] [2024-12-02 06:44:32,474 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:44:32,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-12-02 06:44:32,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:44:32,475 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-12-02 06:44:32,475 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=707, Unknown=0, NotChecked=0, Total=812 [2024-12-02 06:44:32,475 INFO L87 Difference]: Start difference. First operand 254821 states and 315511 transitions. Second operand has 29 states, 29 states have (on average 9.448275862068966) internal successors, (274), 29 states have internal predecessors, (274), 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 06:44:47,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:44:47,430 INFO L93 Difference]: Finished difference Result 354057 states and 436189 transitions. [2024-12-02 06:44:47,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 06:44:47,430 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 9.448275862068966) internal successors, (274), 29 states have internal predecessors, (274), 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 110 [2024-12-02 06:44:47,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:44:47,801 INFO L225 Difference]: With dead ends: 354057 [2024-12-02 06:44:47,802 INFO L226 Difference]: Without dead ends: 271877 [2024-12-02 06:44:47,848 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=409, Invalid=1571, Unknown=0, NotChecked=0, Total=1980 [2024-12-02 06:44:47,849 INFO L435 NwaCegarLoop]: 1547 mSDtfsCounter, 12967 mSDsluCounter, 15349 mSDsCounter, 0 mSdLazyCounter, 783 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12967 SdHoareTripleChecker+Valid, 16896 SdHoareTripleChecker+Invalid, 802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 06:44:47,849 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12967 Valid, 16896 Invalid, 802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 783 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 06:44:47,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271877 states. [2024-12-02 06:44:59,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271877 to 229779. [2024-12-02 06:44:59,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229779 states, 229777 states have (on average 1.2368687901748217) internal successors, (284204), 229778 states have internal predecessors, (284204), 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 06:44:59,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229779 states to 229779 states and 284204 transitions. [2024-12-02 06:44:59,458 INFO L78 Accepts]: Start accepts. Automaton has 229779 states and 284204 transitions. Word has length 110 [2024-12-02 06:44:59,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:44:59,458 INFO L471 AbstractCegarLoop]: Abstraction has 229779 states and 284204 transitions. [2024-12-02 06:44:59,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 9.448275862068966) internal successors, (274), 29 states have internal predecessors, (274), 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 06:44:59,459 INFO L276 IsEmpty]: Start isEmpty. Operand 229779 states and 284204 transitions. [2024-12-02 06:44:59,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-12-02 06:44:59,461 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:44:59,461 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:44:59,469 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-12-02 06:44:59,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-12-02 06:44:59,661 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:44:59,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:44:59,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1272982330, now seen corresponding path program 1 times [2024-12-02 06:44:59,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:44:59,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698515174] [2024-12-02 06:44:59,662 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:44:59,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:44:59,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:44:59,770 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:44:59,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:44:59,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698515174] [2024-12-02 06:44:59,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698515174] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:44:59,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:44:59,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:44:59,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379362487] [2024-12-02 06:44:59,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:44:59,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:44:59,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:44:59,771 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:44:59,771 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:44:59,771 INFO L87 Difference]: Start difference. First operand 229779 states and 284204 transitions. Second operand has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 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 06:45:13,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:45:13,054 INFO L93 Difference]: Finished difference Result 232824 states and 289169 transitions. [2024-12-02 06:45:13,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:45:13,055 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 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 119 [2024-12-02 06:45:13,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:45:13,289 INFO L225 Difference]: With dead ends: 232824 [2024-12-02 06:45:13,289 INFO L226 Difference]: Without dead ends: 231283 [2024-12-02 06:45:13,320 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 06:45:13,321 INFO L435 NwaCegarLoop]: 765 mSDtfsCounter, 830 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 3076 mSolverCounterSat, 728 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 830 SdHoareTripleChecker+Valid, 906 SdHoareTripleChecker+Invalid, 3804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 728 IncrementalHoareTripleChecker+Valid, 3076 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-12-02 06:45:13,321 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [830 Valid, 906 Invalid, 3804 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [728 Valid, 3076 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-12-02 06:45:13,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231283 states. [2024-12-02 06:45:25,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231283 to 231281. [2024-12-02 06:45:25,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231281 states, 231279 states have (on average 1.2356201816853238) internal successors, (285773), 231280 states have internal predecessors, (285773), 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 06:45:26,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231281 states to 231281 states and 285773 transitions. [2024-12-02 06:45:26,028 INFO L78 Accepts]: Start accepts. Automaton has 231281 states and 285773 transitions. Word has length 119 [2024-12-02 06:45:26,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:45:26,028 INFO L471 AbstractCegarLoop]: Abstraction has 231281 states and 285773 transitions. [2024-12-02 06:45:26,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 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 06:45:26,028 INFO L276 IsEmpty]: Start isEmpty. Operand 231281 states and 285773 transitions. [2024-12-02 06:45:26,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-12-02 06:45:26,035 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:45:26,035 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:45:26,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-12-02 06:45:26,035 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:45:26,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:45:26,036 INFO L85 PathProgramCache]: Analyzing trace with hash -849738727, now seen corresponding path program 1 times [2024-12-02 06:45:26,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:45:26,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019348190] [2024-12-02 06:45:26,036 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:45:26,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:45:26,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:45:26,123 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:45:26,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:45:26,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019348190] [2024-12-02 06:45:26,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019348190] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:45:26,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:45:26,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 06:45:26,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088217162] [2024-12-02 06:45:26,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:45:26,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:45:26,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:45:26,124 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:45:26,124 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:45:26,124 INFO L87 Difference]: Start difference. First operand 231281 states and 285773 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 2 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:45:39,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:45:39,456 INFO L93 Difference]: Finished difference Result 237291 states and 293838 transitions. [2024-12-02 06:45:39,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:45:39,457 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 2 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 157 [2024-12-02 06:45:39,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:45:39,691 INFO L225 Difference]: With dead ends: 237291 [2024-12-02 06:45:39,691 INFO L226 Difference]: Without dead ends: 234285 [2024-12-02 06:45:39,719 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 06:45:39,719 INFO L435 NwaCegarLoop]: 673 mSDtfsCounter, 806 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2015 mSolverCounterSat, 827 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 806 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 2842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 827 IncrementalHoareTripleChecker+Valid, 2015 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:45:39,719 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [806 Valid, 679 Invalid, 2842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [827 Valid, 2015 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-12-02 06:45:39,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234285 states. [2024-12-02 06:45:51,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234285 to 234285. [2024-12-02 06:45:51,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234285 states, 234283 states have (on average 1.2341100293235105) internal successors, (289131), 234284 states have internal predecessors, (289131), 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 06:45:51,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234285 states to 234285 states and 289131 transitions. [2024-12-02 06:45:51,731 INFO L78 Accepts]: Start accepts. Automaton has 234285 states and 289131 transitions. Word has length 157 [2024-12-02 06:45:51,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:45:51,732 INFO L471 AbstractCegarLoop]: Abstraction has 234285 states and 289131 transitions. [2024-12-02 06:45:51,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 2 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:45:51,732 INFO L276 IsEmpty]: Start isEmpty. Operand 234285 states and 289131 transitions. [2024-12-02 06:45:51,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-12-02 06:45:51,744 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:45:51,744 INFO L218 NwaCegarLoop]: trace histogram [4, 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, 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] [2024-12-02 06:45:51,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-12-02 06:45:51,744 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:45:51,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:45:51,745 INFO L85 PathProgramCache]: Analyzing trace with hash 403535302, now seen corresponding path program 1 times [2024-12-02 06:45:51,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:45:51,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194715066] [2024-12-02 06:45:51,745 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:45:51,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:45:51,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:45:52,357 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 22 proven. 113 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:45:52,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:45:52,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194715066] [2024-12-02 06:45:52,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194715066] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:45:52,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [953925434] [2024-12-02 06:45:52,357 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:45:52,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:45:52,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:45:52,359 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:45:52,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-12-02 06:45:52,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:45:52,539 INFO L256 TraceCheckSpWp]: Trace formula consists of 709 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-12-02 06:45:52,542 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:45:56,720 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 55 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:45:56,720 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:46:02,918 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 55 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:46:02,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [953925434] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:46:02,919 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:46:02,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 24, 24] total 57 [2024-12-02 06:46:02,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852398703] [2024-12-02 06:46:02,919 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:46:02,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2024-12-02 06:46:02,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:46:02,920 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2024-12-02 06:46:02,921 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=376, Invalid=2930, Unknown=0, NotChecked=0, Total=3306 [2024-12-02 06:46:02,921 INFO L87 Difference]: Start difference. First operand 234285 states and 289131 transitions. Second operand has 58 states, 58 states have (on average 7.896551724137931) internal successors, (458), 57 states have internal predecessors, (458), 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 06:47:16,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:47:16,168 INFO L93 Difference]: Finished difference Result 707485 states and 878285 transitions. [2024-12-02 06:47:16,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 316 states. [2024-12-02 06:47:16,169 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 58 states have (on average 7.896551724137931) internal successors, (458), 57 states have internal predecessors, (458), 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 166 [2024-12-02 06:47:16,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:47:16,874 INFO L225 Difference]: With dead ends: 707485 [2024-12-02 06:47:16,874 INFO L226 Difference]: Without dead ends: 538872 [2024-12-02 06:47:16,950 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 657 GetRequests, 287 SyntacticMatches, 0 SemanticMatches, 370 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52369 ImplicationChecksByTransitivity, 42.8s TimeCoverageRelationStatistics Valid=17338, Invalid=120674, Unknown=0, NotChecked=0, Total=138012 [2024-12-02 06:47:16,951 INFO L435 NwaCegarLoop]: 1694 mSDtfsCounter, 40758 mSDsluCounter, 28750 mSDsCounter, 0 mSdLazyCounter, 10032 mSolverCounterSat, 346 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40758 SdHoareTripleChecker+Valid, 30444 SdHoareTripleChecker+Invalid, 10378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 346 IncrementalHoareTripleChecker+Valid, 10032 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2024-12-02 06:47:16,951 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40758 Valid, 30444 Invalid, 10378 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [346 Valid, 10032 Invalid, 0 Unknown, 0 Unchecked, 8.5s Time] [2024-12-02 06:47:17,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538872 states. [2024-12-02 06:47:40,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538872 to 371817. [2024-12-02 06:47:40,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371817 states, 371815 states have (on average 1.229901967376249) internal successors, (457296), 371816 states have internal predecessors, (457296), 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 06:47:41,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371817 states to 371817 states and 457296 transitions. [2024-12-02 06:47:41,290 INFO L78 Accepts]: Start accepts. Automaton has 371817 states and 457296 transitions. Word has length 166 [2024-12-02 06:47:41,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:47:41,291 INFO L471 AbstractCegarLoop]: Abstraction has 371817 states and 457296 transitions. [2024-12-02 06:47:41,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 58 states have (on average 7.896551724137931) internal successors, (458), 57 states have internal predecessors, (458), 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 06:47:41,291 INFO L276 IsEmpty]: Start isEmpty. Operand 371817 states and 457296 transitions. [2024-12-02 06:47:41,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-12-02 06:47:41,333 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:47:41,333 INFO L218 NwaCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:47:41,345 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-12-02 06:47:41,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-12-02 06:47:41,534 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:47:41,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:47:41,535 INFO L85 PathProgramCache]: Analyzing trace with hash 331485333, now seen corresponding path program 1 times [2024-12-02 06:47:41,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:47:41,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299760559] [2024-12-02 06:47:41,535 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:47:41,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:47:41,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:47:43,313 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 42 proven. 89 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:47:43,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:47:43,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299760559] [2024-12-02 06:47:43,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299760559] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:47:43,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2102608824] [2024-12-02 06:47:43,314 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:47:43,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:47:43,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:47:43,316 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:47:43,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-12-02 06:47:43,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:47:43,561 INFO L256 TraceCheckSpWp]: Trace formula consists of 713 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-12-02 06:47:43,567 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:47:47,590 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 16 proven. 115 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:47:47,591 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:47:52,958 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 16 proven. 115 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:47:52,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2102608824] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:47:52,958 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:47:52,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 18, 18] total 45 [2024-12-02 06:47:52,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916631871] [2024-12-02 06:47:52,959 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:47:52,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2024-12-02 06:47:52,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:47:52,961 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2024-12-02 06:47:52,961 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=1807, Unknown=0, NotChecked=0, Total=1980 [2024-12-02 06:47:52,962 INFO L87 Difference]: Start difference. First operand 371817 states and 457296 transitions. Second operand has 45 states, 45 states have (on average 10.622222222222222) internal successors, (478), 45 states have internal predecessors, (478), 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 06:49:00,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:49:00,654 INFO L93 Difference]: Finished difference Result 846095 states and 1033392 transitions. [2024-12-02 06:49:00,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 150 states. [2024-12-02 06:49:00,656 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 10.622222222222222) internal successors, (478), 45 states have internal predecessors, (478), 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 167 [2024-12-02 06:49:00,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:49:01,581 INFO L225 Difference]: With dead ends: 846095 [2024-12-02 06:49:01,582 INFO L226 Difference]: Without dead ends: 596179 [2024-12-02 06:49:01,727 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 494 GetRequests, 303 SyntacticMatches, 0 SemanticMatches, 191 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12440 ImplicationChecksByTransitivity, 27.6s TimeCoverageRelationStatistics Valid=5439, Invalid=31617, Unknown=0, NotChecked=0, Total=37056 [2024-12-02 06:49:01,729 INFO L435 NwaCegarLoop]: 1557 mSDtfsCounter, 27405 mSDsluCounter, 21228 mSDsCounter, 0 mSdLazyCounter, 3735 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27405 SdHoareTripleChecker+Valid, 22785 SdHoareTripleChecker+Invalid, 3919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 3735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-12-02 06:49:01,730 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27405 Valid, 22785 Invalid, 3919 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [184 Valid, 3735 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-12-02 06:49:02,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596179 states. [2024-12-02 06:49:34,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596179 to 454210. [2024-12-02 06:49:34,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454210 states, 454208 states have (on average 1.2175170846836691) internal successors, (553006), 454209 states have internal predecessors, (553006), 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 06:49:35,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454210 states to 454210 states and 553006 transitions. [2024-12-02 06:49:35,859 INFO L78 Accepts]: Start accepts. Automaton has 454210 states and 553006 transitions. Word has length 167 [2024-12-02 06:49:35,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:49:35,860 INFO L471 AbstractCegarLoop]: Abstraction has 454210 states and 553006 transitions. [2024-12-02 06:49:35,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 10.622222222222222) internal successors, (478), 45 states have internal predecessors, (478), 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 06:49:35,861 INFO L276 IsEmpty]: Start isEmpty. Operand 454210 states and 553006 transitions. [2024-12-02 06:49:35,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-12-02 06:49:35,916 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:49:35,917 INFO L218 NwaCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:49:35,946 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-12-02 06:49:36,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-12-02 06:49:36,125 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:49:36,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:49:36,133 INFO L85 PathProgramCache]: Analyzing trace with hash -2037702032, now seen corresponding path program 1 times [2024-12-02 06:49:36,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:49:36,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387930575] [2024-12-02 06:49:36,133 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:49:36,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:49:36,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:49:40,870 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 25 proven. 107 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:49:40,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:49:40,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387930575] [2024-12-02 06:49:40,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387930575] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:49:40,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [849804014] [2024-12-02 06:49:40,871 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:49:40,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:49:40,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:49:40,874 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:49:40,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97b5f387-e38c-4e08-b2b7-ba573572d29f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-12-02 06:49:41,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:49:41,239 INFO L256 TraceCheckSpWp]: Trace formula consists of 715 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-12-02 06:49:41,255 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:49:45,595 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 42 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:49:45,595 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:49:50,038 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 42 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:49:50,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [849804014] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:49:50,038 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:49:50,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 17, 18] total 51 [2024-12-02 06:49:50,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306878932] [2024-12-02 06:49:50,039 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:49:50,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2024-12-02 06:49:50,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:49:50,042 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2024-12-02 06:49:50,042 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=2361, Unknown=0, NotChecked=0, Total=2550 [2024-12-02 06:49:50,043 INFO L87 Difference]: Start difference. First operand 454210 states and 553006 transitions. Second operand has 51 states, 51 states have (on average 9.176470588235293) internal successors, (468), 51 states have internal predecessors, (468), 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 06:51:52,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:51:52,132 INFO L93 Difference]: Finished difference Result 1396151 states and 1701216 transitions. [2024-12-02 06:51:52,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 269 states. [2024-12-02 06:51:52,133 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 51 states have (on average 9.176470588235293) internal successors, (468), 51 states have internal predecessors, (468), 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 168 [2024-12-02 06:51:52,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:51:53,765 INFO L225 Difference]: With dead ends: 1396151 [2024-12-02 06:51:53,765 INFO L226 Difference]: Without dead ends: 1135683 [2024-12-02 06:51:53,993 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 621 GetRequests, 305 SyntacticMatches, 0 SemanticMatches, 316 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38422 ImplicationChecksByTransitivity, 47.5s TimeCoverageRelationStatistics Valid=10486, Invalid=90320, Unknown=0, NotChecked=0, Total=100806 [2024-12-02 06:51:53,995 INFO L435 NwaCegarLoop]: 1765 mSDtfsCounter, 33126 mSDsluCounter, 32543 mSDsCounter, 0 mSdLazyCounter, 9876 mSolverCounterSat, 230 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33126 SdHoareTripleChecker+Valid, 34308 SdHoareTripleChecker+Invalid, 10106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 230 IncrementalHoareTripleChecker+Valid, 9876 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2024-12-02 06:51:53,995 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33126 Valid, 34308 Invalid, 10106 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [230 Valid, 9876 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2024-12-02 06:51:54,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1135683 states.