./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pals_lcr.7.1.ufo.BOUNDED-14.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_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/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_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pals_lcr.7.1.ufo.BOUNDED-14.pals+Problem12_label01.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/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_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/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 60893087aa786664ad64540c06a3cfd94f74ea911d6a1d2cfa0eca217367fc44 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 13:44:02,982 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 13:44:03,046 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 13:44:03,052 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 13:44:03,052 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 13:44:03,076 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 13:44:03,077 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 13:44:03,077 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 13:44:03,077 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 13:44:03,077 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 13:44:03,077 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 13:44:03,078 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 13:44:03,078 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 13:44:03,078 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 13:44:03,078 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 13:44:03,078 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 13:44:03,078 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 13:44:03,079 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 13:44:03,079 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 13:44:03,079 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 13:44:03,079 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 13:44:03,079 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 13:44:03,079 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 13:44:03,079 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 13:44:03,079 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 13:44:03,079 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 13:44:03,079 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 13:44:03,079 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 13:44:03,080 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 13:44:03,080 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:44:03,080 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:44:03,080 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:44:03,080 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:44:03,080 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 13:44:03,080 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:44:03,080 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:44:03,080 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:44:03,080 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:44:03,080 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 13:44:03,081 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 13:44:03,081 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 13:44:03,081 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 13:44:03,081 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 13:44:03,081 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 13:44:03,081 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 13:44:03,081 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 13:44:03,081 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 13:44:03,081 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 13:44:03,081 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_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/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 -> 60893087aa786664ad64540c06a3cfd94f74ea911d6a1d2cfa0eca217367fc44 [2024-12-02 13:44:03,322 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 13:44:03,330 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 13:44:03,333 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 13:44:03,334 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 13:44:03,334 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 13:44:03,336 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/combinations/pals_lcr.7.1.ufo.BOUNDED-14.pals+Problem12_label01.c [2024-12-02 13:44:06,081 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/data/1b0bdf50d/1a2a35857d024406a2bc70424b8dcfa4/FLAG01b332139 [2024-12-02 13:44:06,455 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 13:44:06,456 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/sv-benchmarks/c/combinations/pals_lcr.7.1.ufo.BOUNDED-14.pals+Problem12_label01.c [2024-12-02 13:44:06,479 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/data/1b0bdf50d/1a2a35857d024406a2bc70424b8dcfa4/FLAG01b332139 [2024-12-02 13:44:06,493 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/data/1b0bdf50d/1a2a35857d024406a2bc70424b8dcfa4 [2024-12-02 13:44:06,495 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 13:44:06,496 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 13:44:06,497 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 13:44:06,497 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 13:44:06,501 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 13:44:06,502 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:44:06" (1/1) ... [2024-12-02 13:44:06,503 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a1ca51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:06, skipping insertion in model container [2024-12-02 13:44:06,503 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:44:06" (1/1) ... [2024-12-02 13:44:06,578 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 13:44:06,865 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_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/sv-benchmarks/c/combinations/pals_lcr.7.1.ufo.BOUNDED-14.pals+Problem12_label01.c[20463,20476] [2024-12-02 13:44:06,912 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_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/sv-benchmarks/c/combinations/pals_lcr.7.1.ufo.BOUNDED-14.pals+Problem12_label01.c[26018,26031] [2024-12-02 13:44:07,408 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:44:07,420 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 13:44:07,457 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_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/sv-benchmarks/c/combinations/pals_lcr.7.1.ufo.BOUNDED-14.pals+Problem12_label01.c[20463,20476] [2024-12-02 13:44:07,464 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_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/sv-benchmarks/c/combinations/pals_lcr.7.1.ufo.BOUNDED-14.pals+Problem12_label01.c[26018,26031] [2024-12-02 13:44:07,790 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:44:07,830 INFO L204 MainTranslator]: Completed translation [2024-12-02 13:44:07,831 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:07 WrapperNode [2024-12-02 13:44:07,831 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 13:44:07,832 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 13:44:07,832 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 13:44:07,832 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 13:44:07,838 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:07" (1/1) ... [2024-12-02 13:44:07,879 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:07" (1/1) ... [2024-12-02 13:44:08,113 INFO L138 Inliner]: procedures = 38, calls = 24, calls flagged for inlining = 19, calls inlined = 19, statements flattened = 5220 [2024-12-02 13:44:08,113 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 13:44:08,114 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 13:44:08,114 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 13:44:08,114 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 13:44:08,122 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:07" (1/1) ... [2024-12-02 13:44:08,122 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:07" (1/1) ... [2024-12-02 13:44:08,163 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:07" (1/1) ... [2024-12-02 13:44:08,328 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 13:44:08,329 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:07" (1/1) ... [2024-12-02 13:44:08,329 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:07" (1/1) ... [2024-12-02 13:44:08,408 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:07" (1/1) ... [2024-12-02 13:44:08,418 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:07" (1/1) ... [2024-12-02 13:44:08,482 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:07" (1/1) ... [2024-12-02 13:44:08,508 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:07" (1/1) ... [2024-12-02 13:44:08,518 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:07" (1/1) ... [2024-12-02 13:44:08,563 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 13:44:08,563 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 13:44:08,563 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 13:44:08,564 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 13:44:08,565 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:07" (1/1) ... [2024-12-02 13:44:08,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:44:08,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:44:08,589 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 13:44:08,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 13:44:08,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 13:44:08,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 13:44:08,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 13:44:08,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 13:44:08,708 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 13:44:08,710 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 13:44:13,178 INFO L? ?]: Removed 754 outVars from TransFormulas that were not future-live. [2024-12-02 13:44:13,178 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 13:44:13,207 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 13:44:13,207 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-12-02 13:44:13,207 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:44:13 BoogieIcfgContainer [2024-12-02 13:44:13,207 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 13:44:13,210 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 13:44:13,210 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 13:44:13,215 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 13:44:13,215 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:44:06" (1/3) ... [2024-12-02 13:44:13,216 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@555e942f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:44:13, skipping insertion in model container [2024-12-02 13:44:13,216 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:07" (2/3) ... [2024-12-02 13:44:13,216 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@555e942f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:44:13, skipping insertion in model container [2024-12-02 13:44:13,216 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:44:13" (3/3) ... [2024-12-02 13:44:13,217 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.1.ufo.BOUNDED-14.pals+Problem12_label01.c [2024-12-02 13:44:13,232 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 13:44:13,235 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.7.1.ufo.BOUNDED-14.pals+Problem12_label01.c that has 1 procedures, 931 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-12-02 13:44:13,307 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 13:44:13,318 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;@3408843b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 13:44:13,318 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-12-02 13:44:13,325 INFO L276 IsEmpty]: Start isEmpty. Operand has 931 states, 928 states have (on average 1.9030172413793103) internal successors, (1766), 930 states have internal predecessors, (1766), 0 states have call successors, (0), 0 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 13:44:13,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-12-02 13:44:13,332 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:44:13,332 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] [2024-12-02 13:44:13,333 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:44:13,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:44:13,338 INFO L85 PathProgramCache]: Analyzing trace with hash -1979701138, now seen corresponding path program 1 times [2024-12-02 13:44:13,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:44:13,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805390892] [2024-12-02 13:44:13,344 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:44:13,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:44:13,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:44:13,554 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 13:44:13,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:44:13,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805390892] [2024-12-02 13:44:13,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805390892] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:44:13,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:44:13,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 13:44:13,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019184226] [2024-12-02 13:44:13,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:44:13,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 13:44:13,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:44:13,576 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 13:44:13,576 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 13:44:13,580 INFO L87 Difference]: Start difference. First operand has 931 states, 928 states have (on average 1.9030172413793103) internal successors, (1766), 930 states have internal predecessors, (1766), 0 states have call successors, (0), 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 14.5) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 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 13:44:13,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:44:13,645 INFO L93 Difference]: Finished difference Result 1806 states and 3424 transitions. [2024-12-02 13:44:13,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 13:44:13,647 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 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 29 [2024-12-02 13:44:13,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:44:13,660 INFO L225 Difference]: With dead ends: 1806 [2024-12-02 13:44:13,660 INFO L226 Difference]: Without dead ends: 865 [2024-12-02 13:44:13,665 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 13:44:13,668 INFO L435 NwaCegarLoop]: 1700 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, 1700 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 13:44:13,669 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1700 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:44:13,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2024-12-02 13:44:13,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 865. [2024-12-02 13:44:13,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 863 states have (on average 1.8922363847045192) internal successors, (1633), 864 states have internal predecessors, (1633), 0 states have call successors, (0), 0 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 13:44:13,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1633 transitions. [2024-12-02 13:44:13,739 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1633 transitions. Word has length 29 [2024-12-02 13:44:13,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:44:13,740 INFO L471 AbstractCegarLoop]: Abstraction has 865 states and 1633 transitions. [2024-12-02 13:44:13,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 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 13:44:13,740 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1633 transitions. [2024-12-02 13:44:13,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-12-02 13:44:13,741 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:44:13,741 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] [2024-12-02 13:44:13,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 13:44:13,742 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:44:13,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:44:13,743 INFO L85 PathProgramCache]: Analyzing trace with hash 509827824, now seen corresponding path program 1 times [2024-12-02 13:44:13,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:44:13,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371381024] [2024-12-02 13:44:13,743 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:44:13,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:44:13,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:44:13,983 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 13:44:13,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:44:13,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371381024] [2024-12-02 13:44:13,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371381024] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:44:13,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:44:13,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:44:13,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068266243] [2024-12-02 13:44:13,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:44:13,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:44:13,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:44:13,986 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:44:13,986 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:44:13,986 INFO L87 Difference]: Start difference. First operand 865 states and 1633 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 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 13:44:14,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:44:14,129 INFO L93 Difference]: Finished difference Result 924 states and 1725 transitions. [2024-12-02 13:44:14,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:44:14,130 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 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 29 [2024-12-02 13:44:14,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:44:14,134 INFO L225 Difference]: With dead ends: 924 [2024-12-02 13:44:14,134 INFO L226 Difference]: Without dead ends: 865 [2024-12-02 13:44:14,135 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 13:44:14,136 INFO L435 NwaCegarLoop]: 1631 mSDtfsCounter, 0 mSDsluCounter, 4838 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6469 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:44:14,136 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6469 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:44:14,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2024-12-02 13:44:14,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 865. [2024-12-02 13:44:14,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 863 states have (on average 1.8342989571263035) internal successors, (1583), 864 states have internal predecessors, (1583), 0 states have call successors, (0), 0 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 13:44:14,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1583 transitions. [2024-12-02 13:44:14,162 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1583 transitions. Word has length 29 [2024-12-02 13:44:14,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:44:14,162 INFO L471 AbstractCegarLoop]: Abstraction has 865 states and 1583 transitions. [2024-12-02 13:44:14,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 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 13:44:14,162 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1583 transitions. [2024-12-02 13:44:14,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-12-02 13:44:14,163 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:44:14,163 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 13:44:14,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 13:44:14,163 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:44:14,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:44:14,164 INFO L85 PathProgramCache]: Analyzing trace with hash -941438027, now seen corresponding path program 1 times [2024-12-02 13:44:14,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:44:14,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143279894] [2024-12-02 13:44:14,164 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:44:14,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:44:14,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:44:14,258 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 13:44:14,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:44:14,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143279894] [2024-12-02 13:44:14,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143279894] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:44:14,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:44:14,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 13:44:14,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668375608] [2024-12-02 13:44:14,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:44:14,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:44:14,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:44:14,260 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:44:14,260 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:44:14,260 INFO L87 Difference]: Start difference. First operand 865 states and 1583 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 13:44:17,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:44:17,663 INFO L93 Difference]: Finished difference Result 2369 states and 4456 transitions. [2024-12-02 13:44:17,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:44:17,664 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 13:44:17,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:44:17,670 INFO L225 Difference]: With dead ends: 2369 [2024-12-02 13:44:17,670 INFO L226 Difference]: Without dead ends: 1616 [2024-12-02 13:44:17,671 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 13:44:17,672 INFO L435 NwaCegarLoop]: 214 mSDtfsCounter, 911 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2277 mSolverCounterSat, 998 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 911 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 3275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 998 IncrementalHoareTripleChecker+Valid, 2277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-12-02 13:44:17,672 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [911 Valid, 221 Invalid, 3275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [998 Valid, 2277 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-12-02 13:44:17,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1616 states. [2024-12-02 13:44:17,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1616 to 1616. [2024-12-02 13:44:17,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1616 states, 1614 states have (on average 1.8327137546468402) internal successors, (2958), 1615 states have internal predecessors, (2958), 0 states have call successors, (0), 0 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 13:44:17,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1616 states to 1616 states and 2958 transitions. [2024-12-02 13:44:17,710 INFO L78 Accepts]: Start accepts. Automaton has 1616 states and 2958 transitions. Word has length 48 [2024-12-02 13:44:17,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:44:17,710 INFO L471 AbstractCegarLoop]: Abstraction has 1616 states and 2958 transitions. [2024-12-02 13:44:17,710 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 13:44:17,710 INFO L276 IsEmpty]: Start isEmpty. Operand 1616 states and 2958 transitions. [2024-12-02 13:44:17,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-12-02 13:44:17,712 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:44:17,712 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, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:44:17,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 13:44:17,713 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:44:17,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:44:17,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1132287183, now seen corresponding path program 1 times [2024-12-02 13:44:17,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:44:17,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152356429] [2024-12-02 13:44:17,713 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:44:17,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:44:17,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:44:17,985 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 13:44:17,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:44:17,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152356429] [2024-12-02 13:44:17,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152356429] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:44:17,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:44:17,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 13:44:17,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58018620] [2024-12-02 13:44:17,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:44:17,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 13:44:17,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:44:17,986 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 13:44:17,986 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 13:44:17,986 INFO L87 Difference]: Start difference. First operand 1616 states and 2958 transitions. Second operand has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:44:18,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:44:18,407 INFO L93 Difference]: Finished difference Result 2386 states and 4190 transitions. [2024-12-02 13:44:18,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 13:44:18,408 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-12-02 13:44:18,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:44:18,417 INFO L225 Difference]: With dead ends: 2386 [2024-12-02 13:44:18,417 INFO L226 Difference]: Without dead ends: 2331 [2024-12-02 13:44:18,418 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2024-12-02 13:44:18,419 INFO L435 NwaCegarLoop]: 1579 mSDtfsCounter, 11518 mSDsluCounter, 3317 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11518 SdHoareTripleChecker+Valid, 4896 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 13:44:18,419 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11518 Valid, 4896 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 13:44:18,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2331 states. [2024-12-02 13:44:18,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2331 to 1669. [2024-12-02 13:44:18,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1669 states, 1667 states have (on average 1.8254349130173966) internal successors, (3043), 1668 states have internal predecessors, (3043), 0 states have call successors, (0), 0 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 13:44:18,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1669 states to 1669 states and 3043 transitions. [2024-12-02 13:44:18,460 INFO L78 Accepts]: Start accepts. Automaton has 1669 states and 3043 transitions. Word has length 78 [2024-12-02 13:44:18,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:44:18,460 INFO L471 AbstractCegarLoop]: Abstraction has 1669 states and 3043 transitions. [2024-12-02 13:44:18,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:44:18,460 INFO L276 IsEmpty]: Start isEmpty. Operand 1669 states and 3043 transitions. [2024-12-02 13:44:18,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-12-02 13:44:18,462 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:44:18,462 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:44:18,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 13:44:18,462 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:44:18,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:44:18,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1378018881, now seen corresponding path program 1 times [2024-12-02 13:44:18,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:44:18,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794834561] [2024-12-02 13:44:18,463 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:44:18,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:44:18,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:44:18,573 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 13:44:18,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:44:18,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794834561] [2024-12-02 13:44:18,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794834561] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:44:18,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:44:18,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:44:18,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540216553] [2024-12-02 13:44:18,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:44:18,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:44:18,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:44:18,574 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:44:18,574 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:44:18,574 INFO L87 Difference]: Start difference. First operand 1669 states and 3043 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:44:18,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:44:18,606 INFO L93 Difference]: Finished difference Result 1874 states and 3370 transitions. [2024-12-02 13:44:18,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:44:18,607 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2024-12-02 13:44:18,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:44:18,613 INFO L225 Difference]: With dead ends: 1874 [2024-12-02 13:44:18,613 INFO L226 Difference]: Without dead ends: 1766 [2024-12-02 13:44:18,614 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 13:44:18,615 INFO L435 NwaCegarLoop]: 1581 mSDtfsCounter, 1498 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1498 SdHoareTripleChecker+Valid, 1664 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:44:18,615 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1498 Valid, 1664 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:44:18,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1766 states. [2024-12-02 13:44:18,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1766 to 1764. [2024-12-02 13:44:18,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1764 states, 1762 states have (on average 1.812145289443814) internal successors, (3193), 1763 states have internal predecessors, (3193), 0 states have call successors, (0), 0 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 13:44:18,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1764 states to 1764 states and 3193 transitions. [2024-12-02 13:44:18,654 INFO L78 Accepts]: Start accepts. Automaton has 1764 states and 3193 transitions. Word has length 80 [2024-12-02 13:44:18,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:44:18,655 INFO L471 AbstractCegarLoop]: Abstraction has 1764 states and 3193 transitions. [2024-12-02 13:44:18,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:44:18,655 INFO L276 IsEmpty]: Start isEmpty. Operand 1764 states and 3193 transitions. [2024-12-02 13:44:18,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-12-02 13:44:18,656 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:44:18,656 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:44:18,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 13:44:18,656 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:44:18,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:44:18,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1444512393, now seen corresponding path program 1 times [2024-12-02 13:44:18,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:44:18,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452849661] [2024-12-02 13:44:18,657 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:44:18,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:44:18,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:44:19,124 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 13:44:19,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:44:19,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452849661] [2024-12-02 13:44:19,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452849661] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:44:19,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:44:19,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 13:44:19,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010046073] [2024-12-02 13:44:19,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:44:19,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 13:44:19,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:44:19,125 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 13:44:19,125 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 13:44:19,126 INFO L87 Difference]: Start difference. First operand 1764 states and 3193 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 9 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:44:19,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:44:19,470 INFO L93 Difference]: Finished difference Result 1969 states and 3517 transitions. [2024-12-02 13:44:19,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 13:44:19,470 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 9 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2024-12-02 13:44:19,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:44:19,477 INFO L225 Difference]: With dead ends: 1969 [2024-12-02 13:44:19,477 INFO L226 Difference]: Without dead ends: 1766 [2024-12-02 13:44:19,478 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2024-12-02 13:44:19,479 INFO L435 NwaCegarLoop]: 1574 mSDtfsCounter, 9054 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9054 SdHoareTripleChecker+Valid, 2084 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:44:19,479 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9054 Valid, 2084 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:44:19,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1766 states. [2024-12-02 13:44:19,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1766 to 1764. [2024-12-02 13:44:19,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1764 states, 1762 states have (on average 1.8110102156640182) internal successors, (3191), 1763 states have internal predecessors, (3191), 0 states have call successors, (0), 0 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 13:44:19,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1764 states to 1764 states and 3191 transitions. [2024-12-02 13:44:19,516 INFO L78 Accepts]: Start accepts. Automaton has 1764 states and 3191 transitions. Word has length 80 [2024-12-02 13:44:19,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:44:19,517 INFO L471 AbstractCegarLoop]: Abstraction has 1764 states and 3191 transitions. [2024-12-02 13:44:19,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 9 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:44:19,517 INFO L276 IsEmpty]: Start isEmpty. Operand 1764 states and 3191 transitions. [2024-12-02 13:44:19,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-12-02 13:44:19,518 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:44:19,518 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:44:19,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 13:44:19,518 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:44:19,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:44:19,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1415488311, now seen corresponding path program 1 times [2024-12-02 13:44:19,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:44:19,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542735960] [2024-12-02 13:44:19,519 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:44:19,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:44:19,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:44:19,838 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 13:44:19,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:44:19,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542735960] [2024-12-02 13:44:19,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542735960] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:44:19,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:44:19,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 13:44:19,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980851697] [2024-12-02 13:44:19,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:44:19,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 13:44:19,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:44:19,840 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 13:44:19,840 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 13:44:19,840 INFO L87 Difference]: Start difference. First operand 1764 states and 3191 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 13:44:19,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:44:19,906 INFO L93 Difference]: Finished difference Result 1772 states and 3200 transitions. [2024-12-02 13:44:19,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 13:44:19,907 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 81 [2024-12-02 13:44:19,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:44:19,914 INFO L225 Difference]: With dead ends: 1772 [2024-12-02 13:44:19,914 INFO L226 Difference]: Without dead ends: 1770 [2024-12-02 13:44:19,915 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 13:44:19,915 INFO L435 NwaCegarLoop]: 1577 mSDtfsCounter, 0 mSDsluCounter, 9449 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11026 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:44:19,916 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11026 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:44:19,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1770 states. [2024-12-02 13:44:19,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1770 to 1770. [2024-12-02 13:44:19,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1770 states, 1768 states have (on average 1.8076923076923077) internal successors, (3196), 1769 states have internal predecessors, (3196), 0 states have call successors, (0), 0 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 13:44:19,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1770 states to 1770 states and 3196 transitions. [2024-12-02 13:44:19,952 INFO L78 Accepts]: Start accepts. Automaton has 1770 states and 3196 transitions. Word has length 81 [2024-12-02 13:44:19,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:44:19,952 INFO L471 AbstractCegarLoop]: Abstraction has 1770 states and 3196 transitions. [2024-12-02 13:44:19,952 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 13:44:19,952 INFO L276 IsEmpty]: Start isEmpty. Operand 1770 states and 3196 transitions. [2024-12-02 13:44:19,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-12-02 13:44:19,953 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:44:19,953 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:44:19,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 13:44:19,954 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:44:19,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:44:19,954 INFO L85 PathProgramCache]: Analyzing trace with hash -801072599, now seen corresponding path program 1 times [2024-12-02 13:44:19,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:44:19,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174746424] [2024-12-02 13:44:19,954 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:44:19,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:44:19,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:44:20,029 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 13:44:20,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:44:20,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174746424] [2024-12-02 13:44:20,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174746424] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:44:20,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:44:20,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:44:20,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430221001] [2024-12-02 13:44:20,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:44:20,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:44:20,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:44:20,030 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:44:20,031 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:44:20,031 INFO L87 Difference]: Start difference. First operand 1770 states and 3196 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:44:20,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:44:20,063 INFO L93 Difference]: Finished difference Result 1993 states and 3542 transitions. [2024-12-02 13:44:20,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:44:20,064 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-12-02 13:44:20,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:44:20,070 INFO L225 Difference]: With dead ends: 1993 [2024-12-02 13:44:20,070 INFO L226 Difference]: Without dead ends: 1879 [2024-12-02 13:44:20,070 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 13:44:20,071 INFO L435 NwaCegarLoop]: 1655 mSDtfsCounter, 1516 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1516 SdHoareTripleChecker+Valid, 1744 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 13:44:20,071 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1516 Valid, 1744 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:44:20,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1879 states. [2024-12-02 13:44:20,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1879 to 1877. [2024-12-02 13:44:20,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1877 states, 1875 states have (on average 1.792) internal successors, (3360), 1876 states have internal predecessors, (3360), 0 states have call successors, (0), 0 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 13:44:20,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1877 states to 1877 states and 3360 transitions. [2024-12-02 13:44:20,109 INFO L78 Accepts]: Start accepts. Automaton has 1877 states and 3360 transitions. Word has length 82 [2024-12-02 13:44:20,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:44:20,109 INFO L471 AbstractCegarLoop]: Abstraction has 1877 states and 3360 transitions. [2024-12-02 13:44:20,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:44:20,109 INFO L276 IsEmpty]: Start isEmpty. Operand 1877 states and 3360 transitions. [2024-12-02 13:44:20,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-12-02 13:44:20,110 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:44:20,110 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:44:20,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 13:44:20,110 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:44:20,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:44:20,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1140996905, now seen corresponding path program 1 times [2024-12-02 13:44:20,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:44:20,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099099547] [2024-12-02 13:44:20,111 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:44:20,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:44:20,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:44:20,178 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 13:44:20,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:44:20,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099099547] [2024-12-02 13:44:20,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099099547] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:44:20,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:44:20,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:44:20,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466425837] [2024-12-02 13:44:20,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:44:20,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:44:20,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:44:20,179 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:44:20,179 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:44:20,180 INFO L87 Difference]: Start difference. First operand 1877 states and 3360 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:44:20,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:44:20,216 INFO L93 Difference]: Finished difference Result 2479 states and 4292 transitions. [2024-12-02 13:44:20,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:44:20,217 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-12-02 13:44:20,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:44:20,224 INFO L225 Difference]: With dead ends: 2479 [2024-12-02 13:44:20,224 INFO L226 Difference]: Without dead ends: 2166 [2024-12-02 13:44:20,225 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 13:44:20,225 INFO L435 NwaCegarLoop]: 1657 mSDtfsCounter, 1514 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 1750 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 13:44:20,226 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1514 Valid, 1750 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:44:20,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2166 states. [2024-12-02 13:44:20,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2166 to 2164. [2024-12-02 13:44:20,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2164 states, 2162 states have (on average 1.7567067530064755) internal successors, (3798), 2163 states have internal predecessors, (3798), 0 states have call successors, (0), 0 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 13:44:20,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2164 states to 2164 states and 3798 transitions. [2024-12-02 13:44:20,273 INFO L78 Accepts]: Start accepts. Automaton has 2164 states and 3798 transitions. Word has length 82 [2024-12-02 13:44:20,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:44:20,274 INFO L471 AbstractCegarLoop]: Abstraction has 2164 states and 3798 transitions. [2024-12-02 13:44:20,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:44:20,274 INFO L276 IsEmpty]: Start isEmpty. Operand 2164 states and 3798 transitions. [2024-12-02 13:44:20,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-12-02 13:44:20,275 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:44:20,275 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:44:20,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 13:44:20,275 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:44:20,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:44:20,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1567767849, now seen corresponding path program 1 times [2024-12-02 13:44:20,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:44:20,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798183712] [2024-12-02 13:44:20,276 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:44:20,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:44:20,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:44:20,352 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 13:44:20,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:44:20,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798183712] [2024-12-02 13:44:20,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798183712] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:44:20,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:44:20,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:44:20,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306885609] [2024-12-02 13:44:20,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:44:20,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:44:20,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:44:20,353 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:44:20,353 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:44:20,353 INFO L87 Difference]: Start difference. First operand 2164 states and 3798 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:44:20,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:44:20,409 INFO L93 Difference]: Finished difference Result 3316 states and 5564 transitions. [2024-12-02 13:44:20,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:44:20,410 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-12-02 13:44:20,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:44:20,415 INFO L225 Difference]: With dead ends: 3316 [2024-12-02 13:44:20,415 INFO L226 Difference]: Without dead ends: 2716 [2024-12-02 13:44:20,417 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 13:44:20,417 INFO L435 NwaCegarLoop]: 1645 mSDtfsCounter, 1510 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1510 SdHoareTripleChecker+Valid, 1746 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 13:44:20,417 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1510 Valid, 1746 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:44:20,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2716 states. [2024-12-02 13:44:20,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2716 to 2714. [2024-12-02 13:44:20,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2714 states, 2712 states have (on average 1.7057522123893805) internal successors, (4626), 2713 states have internal predecessors, (4626), 0 states have call successors, (0), 0 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 13:44:20,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2714 states to 2714 states and 4626 transitions. [2024-12-02 13:44:20,457 INFO L78 Accepts]: Start accepts. Automaton has 2714 states and 4626 transitions. Word has length 82 [2024-12-02 13:44:20,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:44:20,457 INFO L471 AbstractCegarLoop]: Abstraction has 2714 states and 4626 transitions. [2024-12-02 13:44:20,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:44:20,458 INFO L276 IsEmpty]: Start isEmpty. Operand 2714 states and 4626 transitions. [2024-12-02 13:44:20,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-12-02 13:44:20,458 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:44:20,458 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:44:20,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 13:44:20,458 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:44:20,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:44:20,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1488937431, now seen corresponding path program 1 times [2024-12-02 13:44:20,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:44:20,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708519168] [2024-12-02 13:44:20,459 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:44:20,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:44:20,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:44:20,512 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 13:44:20,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:44:20,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708519168] [2024-12-02 13:44:20,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708519168] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:44:20,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:44:20,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:44:20,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296365607] [2024-12-02 13:44:20,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:44:20,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:44:20,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:44:20,513 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:44:20,513 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:44:20,514 INFO L87 Difference]: Start difference. First operand 2714 states and 4626 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:44:20,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:44:20,555 INFO L93 Difference]: Finished difference Result 4918 states and 7964 transitions. [2024-12-02 13:44:20,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:44:20,555 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-12-02 13:44:20,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:44:20,563 INFO L225 Difference]: With dead ends: 4918 [2024-12-02 13:44:20,563 INFO L226 Difference]: Without dead ends: 3768 [2024-12-02 13:44:20,565 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 13:44:20,565 INFO L435 NwaCegarLoop]: 1643 mSDtfsCounter, 1508 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1508 SdHoareTripleChecker+Valid, 1748 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 13:44:20,565 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1508 Valid, 1748 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:44:20,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3768 states. [2024-12-02 13:44:20,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3768 to 3766. [2024-12-02 13:44:20,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3766 states, 3764 states have (on average 1.6434643995749203) internal successors, (6186), 3765 states have internal predecessors, (6186), 0 states have call successors, (0), 0 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 13:44:20,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3766 states to 3766 states and 6186 transitions. [2024-12-02 13:44:20,623 INFO L78 Accepts]: Start accepts. Automaton has 3766 states and 6186 transitions. Word has length 82 [2024-12-02 13:44:20,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:44:20,623 INFO L471 AbstractCegarLoop]: Abstraction has 3766 states and 6186 transitions. [2024-12-02 13:44:20,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:44:20,623 INFO L276 IsEmpty]: Start isEmpty. Operand 3766 states and 6186 transitions. [2024-12-02 13:44:20,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-12-02 13:44:20,624 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:44:20,624 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:44:20,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 13:44:20,624 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:44:20,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:44:20,624 INFO L85 PathProgramCache]: Analyzing trace with hash 590561065, now seen corresponding path program 1 times [2024-12-02 13:44:20,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:44:20,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759469779] [2024-12-02 13:44:20,625 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:44:20,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:44:20,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:44:20,674 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 13:44:20,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:44:20,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759469779] [2024-12-02 13:44:20,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759469779] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:44:20,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:44:20,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:44:20,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624148941] [2024-12-02 13:44:20,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:44:20,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:44:20,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:44:20,675 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:44:20,675 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:44:20,675 INFO L87 Difference]: Start difference. First operand 3766 states and 6186 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:44:20,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:44:20,736 INFO L93 Difference]: Finished difference Result 7978 states and 12476 transitions. [2024-12-02 13:44:20,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:44:20,736 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-12-02 13:44:20,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:44:20,752 INFO L225 Difference]: With dead ends: 7978 [2024-12-02 13:44:20,752 INFO L226 Difference]: Without dead ends: 5776 [2024-12-02 13:44:20,755 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 13:44:20,755 INFO L435 NwaCegarLoop]: 1641 mSDtfsCounter, 1506 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 1750 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 13:44:20,755 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1506 Valid, 1750 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:44:20,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5776 states. [2024-12-02 13:44:20,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5776 to 5774. [2024-12-02 13:44:20,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5774 states, 5772 states have (on average 1.579002079002079) internal successors, (9114), 5773 states have internal predecessors, (9114), 0 states have call successors, (0), 0 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 13:44:20,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5774 states to 5774 states and 9114 transitions. [2024-12-02 13:44:20,855 INFO L78 Accepts]: Start accepts. Automaton has 5774 states and 9114 transitions. Word has length 82 [2024-12-02 13:44:20,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:44:20,855 INFO L471 AbstractCegarLoop]: Abstraction has 5774 states and 9114 transitions. [2024-12-02 13:44:20,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:44:20,855 INFO L276 IsEmpty]: Start isEmpty. Operand 5774 states and 9114 transitions. [2024-12-02 13:44:20,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-12-02 13:44:20,856 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:44:20,856 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:44:20,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 13:44:20,857 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:44:20,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:44:20,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1923473367, now seen corresponding path program 1 times [2024-12-02 13:44:20,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:44:20,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353460951] [2024-12-02 13:44:20,857 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:44:20,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:44:20,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:44:20,905 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 13:44:20,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:44:20,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353460951] [2024-12-02 13:44:20,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353460951] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:44:20,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:44:20,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:44:20,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080702265] [2024-12-02 13:44:20,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:44:20,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:44:20,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:44:20,906 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:44:20,906 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:44:20,906 INFO L87 Difference]: Start difference. First operand 5774 states and 9114 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:44:20,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:44:20,998 INFO L93 Difference]: Finished difference Result 13810 states and 20924 transitions. [2024-12-02 13:44:20,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:44:20,999 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-12-02 13:44:20,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:44:21,020 INFO L225 Difference]: With dead ends: 13810 [2024-12-02 13:44:21,020 INFO L226 Difference]: Without dead ends: 9600 [2024-12-02 13:44:21,025 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 13:44:21,025 INFO L435 NwaCegarLoop]: 1639 mSDtfsCounter, 1504 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1504 SdHoareTripleChecker+Valid, 1752 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 13:44:21,025 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1504 Valid, 1752 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:44:21,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9600 states. [2024-12-02 13:44:21,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9600 to 9598. [2024-12-02 13:44:21,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9598 states, 9596 states have (on average 1.520008336807003) internal successors, (14586), 9597 states have internal predecessors, (14586), 0 states have call successors, (0), 0 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 13:44:21,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9598 states to 9598 states and 14586 transitions. [2024-12-02 13:44:21,238 INFO L78 Accepts]: Start accepts. Automaton has 9598 states and 14586 transitions. Word has length 82 [2024-12-02 13:44:21,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:44:21,238 INFO L471 AbstractCegarLoop]: Abstraction has 9598 states and 14586 transitions. [2024-12-02 13:44:21,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:44:21,239 INFO L276 IsEmpty]: Start isEmpty. Operand 9598 states and 14586 transitions. [2024-12-02 13:44:21,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-12-02 13:44:21,239 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:44:21,240 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:44:21,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 13:44:21,240 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:44:21,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:44:21,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1303911465, now seen corresponding path program 1 times [2024-12-02 13:44:21,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:44:21,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766952684] [2024-12-02 13:44:21,240 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:44:21,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:44:21,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:44:21,288 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 13:44:21,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:44:21,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766952684] [2024-12-02 13:44:21,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766952684] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:44:21,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:44:21,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:44:21,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902720861] [2024-12-02 13:44:21,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:44:21,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:44:21,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:44:21,290 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:44:21,290 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:44:21,290 INFO L87 Difference]: Start difference. First operand 9598 states and 14586 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:44:21,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:44:21,452 INFO L93 Difference]: Finished difference Result 24898 states and 36668 transitions. [2024-12-02 13:44:21,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:44:21,453 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-12-02 13:44:21,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:44:21,478 INFO L225 Difference]: With dead ends: 24898 [2024-12-02 13:44:21,478 INFO L226 Difference]: Without dead ends: 16864 [2024-12-02 13:44:21,487 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 13:44:21,487 INFO L435 NwaCegarLoop]: 1655 mSDtfsCounter, 1512 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1512 SdHoareTripleChecker+Valid, 1752 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 13:44:21,487 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1512 Valid, 1752 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:44:21,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16864 states. [2024-12-02 13:44:21,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16864 to 16862. [2024-12-02 13:44:21,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16862 states, 16860 states have (on average 1.4686832740213522) internal successors, (24762), 16861 states have internal predecessors, (24762), 0 states have call successors, (0), 0 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 13:44:21,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16862 states to 16862 states and 24762 transitions. [2024-12-02 13:44:21,886 INFO L78 Accepts]: Start accepts. Automaton has 16862 states and 24762 transitions. Word has length 82 [2024-12-02 13:44:21,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:44:21,887 INFO L471 AbstractCegarLoop]: Abstraction has 16862 states and 24762 transitions. [2024-12-02 13:44:21,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:44:21,887 INFO L276 IsEmpty]: Start isEmpty. Operand 16862 states and 24762 transitions. [2024-12-02 13:44:21,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-12-02 13:44:21,892 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:44:21,893 INFO L218 NwaCegarLoop]: trace histogram [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, 1] [2024-12-02 13:44:21,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 13:44:21,893 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:44:21,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:44:21,893 INFO L85 PathProgramCache]: Analyzing trace with hash -1829887773, now seen corresponding path program 1 times [2024-12-02 13:44:21,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:44:21,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311484014] [2024-12-02 13:44:21,893 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:44:21,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:44:21,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:44:22,145 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 13:44:22,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:44:22,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311484014] [2024-12-02 13:44:22,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311484014] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:44:22,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:44:22,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 13:44:22,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500468752] [2024-12-02 13:44:22,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:44:22,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 13:44:22,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:44:22,147 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 13:44:22,147 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 13:44:22,147 INFO L87 Difference]: Start difference. First operand 16862 states and 24762 transitions. Second operand has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 9 states have internal predecessors, (104), 0 states have call successors, (0), 0 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 13:44:23,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:44:23,751 INFO L93 Difference]: Finished difference Result 122542 states and 175874 transitions. [2024-12-02 13:44:23,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 13:44:23,752 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 9 states have internal predecessors, (104), 0 states have call successors, (0), 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 13:44:23,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:44:23,990 INFO L225 Difference]: With dead ends: 122542 [2024-12-02 13:44:23,990 INFO L226 Difference]: Without dead ends: 111788 [2024-12-02 13:44:24,011 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-12-02 13:44:24,012 INFO L435 NwaCegarLoop]: 1670 mSDtfsCounter, 9875 mSDsluCounter, 2888 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9875 SdHoareTripleChecker+Valid, 4558 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:44:24,012 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9875 Valid, 4558 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:44:24,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111788 states. [2024-12-02 13:44:25,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111788 to 29918. [2024-12-02 13:44:25,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29918 states, 29916 states have (on average 1.4459820831661987) internal successors, (43258), 29917 states have internal predecessors, (43258), 0 states have call successors, (0), 0 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 13:44:25,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29918 states to 29918 states and 43258 transitions. [2024-12-02 13:44:25,213 INFO L78 Accepts]: Start accepts. Automaton has 29918 states and 43258 transitions. Word has length 106 [2024-12-02 13:44:25,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:44:25,214 INFO L471 AbstractCegarLoop]: Abstraction has 29918 states and 43258 transitions. [2024-12-02 13:44:25,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 9 states have internal predecessors, (104), 0 states have call successors, (0), 0 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 13:44:25,214 INFO L276 IsEmpty]: Start isEmpty. Operand 29918 states and 43258 transitions. [2024-12-02 13:44:25,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-12-02 13:44:25,218 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:44:25,218 INFO L218 NwaCegarLoop]: trace histogram [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, 1] [2024-12-02 13:44:25,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 13:44:25,218 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:44:25,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:44:25,219 INFO L85 PathProgramCache]: Analyzing trace with hash 112181731, now seen corresponding path program 1 times [2024-12-02 13:44:25,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:44:25,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824099023] [2024-12-02 13:44:25,219 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:44:25,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:44:25,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:44:25,472 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-12-02 13:44:25,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:44:25,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824099023] [2024-12-02 13:44:25,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824099023] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:44:25,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:44:25,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 13:44:25,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095772006] [2024-12-02 13:44:25,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:44:25,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 13:44:25,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:44:25,473 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 13:44:25,474 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 13:44:25,474 INFO L87 Difference]: Start difference. First operand 29918 states and 43258 transitions. Second operand has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 9 states have internal predecessors, (102), 0 states have call successors, (0), 0 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 13:44:27,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:44:27,977 INFO L93 Difference]: Finished difference Result 137838 states and 197634 transitions. [2024-12-02 13:44:27,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 13:44:27,978 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 9 states have internal predecessors, (102), 0 states have call successors, (0), 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 13:44:27,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:44:28,115 INFO L225 Difference]: With dead ends: 137838 [2024-12-02 13:44:28,115 INFO L226 Difference]: Without dead ends: 122540 [2024-12-02 13:44:28,145 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-12-02 13:44:28,146 INFO L435 NwaCegarLoop]: 1669 mSDtfsCounter, 9877 mSDsluCounter, 2839 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9877 SdHoareTripleChecker+Valid, 4508 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:44:28,146 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9877 Valid, 4508 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:44:28,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122540 states. [2024-12-02 13:44:29,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122540 to 50590. [2024-12-02 13:44:29,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50590 states, 50588 states have (on average 1.4332648058828181) internal successors, (72506), 50589 states have internal predecessors, (72506), 0 states have call successors, (0), 0 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 13:44:29,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50590 states to 50590 states and 72506 transitions. [2024-12-02 13:44:29,658 INFO L78 Accepts]: Start accepts. Automaton has 50590 states and 72506 transitions. Word has length 106 [2024-12-02 13:44:29,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:44:29,658 INFO L471 AbstractCegarLoop]: Abstraction has 50590 states and 72506 transitions. [2024-12-02 13:44:29,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 9 states have internal predecessors, (102), 0 states have call successors, (0), 0 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 13:44:29,659 INFO L276 IsEmpty]: Start isEmpty. Operand 50590 states and 72506 transitions. [2024-12-02 13:44:29,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-12-02 13:44:29,662 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:44:29,662 INFO L218 NwaCegarLoop]: trace histogram [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, 1] [2024-12-02 13:44:29,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 13:44:29,662 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:44:29,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:44:29,663 INFO L85 PathProgramCache]: Analyzing trace with hash 538952675, now seen corresponding path program 1 times [2024-12-02 13:44:29,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:44:29,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037517645] [2024-12-02 13:44:29,663 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:44:29,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:44:29,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:44:29,824 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-12-02 13:44:29,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:44:29,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037517645] [2024-12-02 13:44:29,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037517645] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:44:29,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:44:29,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 13:44:29,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058657260] [2024-12-02 13:44:29,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:44:29,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 13:44:29,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:44:29,826 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 13:44:29,826 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 13:44:29,826 INFO L87 Difference]: Start difference. First operand 50590 states and 72506 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 9 states have internal predecessors, (98), 0 states have call successors, (0), 0 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 13:44:32,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:44:32,042 INFO L93 Difference]: Finished difference Result 153134 states and 219330 transitions. [2024-12-02 13:44:32,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 13:44:32,042 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 9 states have internal predecessors, (98), 0 states have call successors, (0), 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 13:44:32,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:44:32,185 INFO L225 Difference]: With dead ends: 153134 [2024-12-02 13:44:32,185 INFO L226 Difference]: Without dead ends: 137836 [2024-12-02 13:44:32,212 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-12-02 13:44:32,213 INFO L435 NwaCegarLoop]: 1667 mSDtfsCounter, 9921 mSDsluCounter, 2858 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9921 SdHoareTripleChecker+Valid, 4525 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:44:32,213 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9921 Valid, 4525 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:44:32,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137836 states. [2024-12-02 13:44:34,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137836 to 65886. [2024-12-02 13:44:34,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65886 states, 65884 states have (on average 1.4298160403132778) internal successors, (94202), 65885 states have internal predecessors, (94202), 0 states have call successors, (0), 0 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 13:44:34,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65886 states to 65886 states and 94202 transitions. [2024-12-02 13:44:34,810 INFO L78 Accepts]: Start accepts. Automaton has 65886 states and 94202 transitions. Word has length 106 [2024-12-02 13:44:34,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:44:34,811 INFO L471 AbstractCegarLoop]: Abstraction has 65886 states and 94202 transitions. [2024-12-02 13:44:34,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 9 states have internal predecessors, (98), 0 states have call successors, (0), 0 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 13:44:34,811 INFO L276 IsEmpty]: Start isEmpty. Operand 65886 states and 94202 transitions. [2024-12-02 13:44:34,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-12-02 13:44:34,816 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:44:34,816 INFO L218 NwaCegarLoop]: trace histogram [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, 1] [2024-12-02 13:44:34,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 13:44:34,817 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:44:34,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:44:34,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1777214691, now seen corresponding path program 1 times [2024-12-02 13:44:34,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:44:34,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344042557] [2024-12-02 13:44:34,817 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:44:34,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:44:34,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:44:35,036 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-12-02 13:44:35,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:44:35,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344042557] [2024-12-02 13:44:35,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344042557] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:44:35,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:44:35,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 13:44:35,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066283185] [2024-12-02 13:44:35,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:44:35,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 13:44:35,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:44:35,037 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 13:44:35,037 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 13:44:35,037 INFO L87 Difference]: Start difference. First operand 65886 states and 94202 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 13:44:37,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:44:37,712 INFO L93 Difference]: Finished difference Result 168430 states and 241026 transitions. [2024-12-02 13:44:37,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 13:44:37,713 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 0 states have call successors, (0), 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 13:44:37,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:44:37,848 INFO L225 Difference]: With dead ends: 168430 [2024-12-02 13:44:37,848 INFO L226 Difference]: Without dead ends: 153132 [2024-12-02 13:44:37,875 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-12-02 13:44:37,876 INFO L435 NwaCegarLoop]: 1665 mSDtfsCounter, 9975 mSDsluCounter, 2803 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9975 SdHoareTripleChecker+Valid, 4468 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:44:37,876 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9975 Valid, 4468 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:44:37,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153132 states. [2024-12-02 13:44:40,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153132 to 81182. [2024-12-02 13:44:40,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81182 states, 81180 states have (on average 1.4276669130327666) internal successors, (115898), 81181 states have internal predecessors, (115898), 0 states have call successors, (0), 0 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 13:44:40,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81182 states to 81182 states and 115898 transitions. [2024-12-02 13:44:40,626 INFO L78 Accepts]: Start accepts. Automaton has 81182 states and 115898 transitions. Word has length 106 [2024-12-02 13:44:40,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:44:40,626 INFO L471 AbstractCegarLoop]: Abstraction has 81182 states and 115898 transitions. [2024-12-02 13:44:40,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 13:44:40,626 INFO L276 IsEmpty]: Start isEmpty. Operand 81182 states and 115898 transitions. [2024-12-02 13:44:40,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-12-02 13:44:40,632 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:44:40,632 INFO L218 NwaCegarLoop]: trace histogram [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, 1] [2024-12-02 13:44:40,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 13:44:40,633 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:44:40,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:44:40,633 INFO L85 PathProgramCache]: Analyzing trace with hash -438254109, now seen corresponding path program 1 times [2024-12-02 13:44:40,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:44:40,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293645498] [2024-12-02 13:44:40,633 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:44:40,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:44:40,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:44:40,908 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-12-02 13:44:40,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:44:40,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293645498] [2024-12-02 13:44:40,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293645498] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:44:40,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:44:40,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 13:44:40,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984755769] [2024-12-02 13:44:40,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:44:40,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 13:44:40,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:44:40,909 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 13:44:40,909 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 13:44:40,909 INFO L87 Difference]: Start difference. First operand 81182 states and 115898 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 0 states have call successors, (0), 0 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 13:44:44,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:44:44,391 INFO L93 Difference]: Finished difference Result 183726 states and 262722 transitions. [2024-12-02 13:44:44,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 13:44:44,391 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 0 states have call successors, (0), 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 13:44:44,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:44:44,540 INFO L225 Difference]: With dead ends: 183726 [2024-12-02 13:44:44,540 INFO L226 Difference]: Without dead ends: 168428 [2024-12-02 13:44:44,566 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-12-02 13:44:44,567 INFO L435 NwaCegarLoop]: 1663 mSDtfsCounter, 10034 mSDsluCounter, 2793 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10034 SdHoareTripleChecker+Valid, 4456 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:44:44,567 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10034 Valid, 4456 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:44:44,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168428 states. [2024-12-02 13:44:46,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168428 to 96478. [2024-12-02 13:44:47,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96478 states, 96476 states have (on average 1.4261992619926198) internal successors, (137594), 96477 states have internal predecessors, (137594), 0 states have call successors, (0), 0 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 13:44:47,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96478 states to 96478 states and 137594 transitions. [2024-12-02 13:44:47,134 INFO L78 Accepts]: Start accepts. Automaton has 96478 states and 137594 transitions. Word has length 106 [2024-12-02 13:44:47,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:44:47,134 INFO L471 AbstractCegarLoop]: Abstraction has 96478 states and 137594 transitions. [2024-12-02 13:44:47,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 0 states have call successors, (0), 0 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 13:44:47,135 INFO L276 IsEmpty]: Start isEmpty. Operand 96478 states and 137594 transitions. [2024-12-02 13:44:47,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-12-02 13:44:47,139 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:44:47,139 INFO L218 NwaCegarLoop]: trace histogram [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, 1] [2024-12-02 13:44:47,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 13:44:47,139 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:44:47,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:44:47,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1342678755, now seen corresponding path program 1 times [2024-12-02 13:44:47,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:44:47,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606055996] [2024-12-02 13:44:47,140 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:44:47,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:44:47,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:44:47,335 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-12-02 13:44:47,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:44:47,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606055996] [2024-12-02 13:44:47,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606055996] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:44:47,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:44:47,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 13:44:47,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560894232] [2024-12-02 13:44:47,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:44:47,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 13:44:47,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:44:47,336 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 13:44:47,336 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 13:44:47,336 INFO L87 Difference]: Start difference. First operand 96478 states and 137594 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 9 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 13:44:51,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:44:51,501 INFO L93 Difference]: Finished difference Result 199022 states and 284418 transitions. [2024-12-02 13:44:51,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 13:44:51,501 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 9 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 106 [2024-12-02 13:44:51,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:44:51,663 INFO L225 Difference]: With dead ends: 199022 [2024-12-02 13:44:51,663 INFO L226 Difference]: Without dead ends: 183724 [2024-12-02 13:44:51,692 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-12-02 13:44:51,692 INFO L435 NwaCegarLoop]: 1663 mSDtfsCounter, 9891 mSDsluCounter, 2919 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9891 SdHoareTripleChecker+Valid, 4582 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:44:51,693 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9891 Valid, 4582 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:44:51,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183724 states. [2024-12-02 13:44:54,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183724 to 111774. [2024-12-02 13:44:54,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111774 states, 111772 states have (on average 1.425133307089432) internal successors, (159290), 111773 states have internal predecessors, (159290), 0 states have call successors, (0), 0 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 13:44:54,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111774 states to 111774 states and 159290 transitions. [2024-12-02 13:44:54,833 INFO L78 Accepts]: Start accepts. Automaton has 111774 states and 159290 transitions. Word has length 106 [2024-12-02 13:44:54,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:44:54,833 INFO L471 AbstractCegarLoop]: Abstraction has 111774 states and 159290 transitions. [2024-12-02 13:44:54,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 9 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 13:44:54,833 INFO L276 IsEmpty]: Start isEmpty. Operand 111774 states and 159290 transitions. [2024-12-02 13:44:54,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-12-02 13:44:54,837 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:44:54,837 INFO L218 NwaCegarLoop]: trace histogram [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, 1] [2024-12-02 13:44:54,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 13:44:54,837 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:44:54,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:44:54,837 INFO L85 PathProgramCache]: Analyzing trace with hash 275096291, now seen corresponding path program 1 times [2024-12-02 13:44:54,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:44:54,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719963739] [2024-12-02 13:44:54,837 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:44:54,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:44:54,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:44:54,981 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-12-02 13:44:54,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:44:54,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719963739] [2024-12-02 13:44:54,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719963739] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:44:54,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:44:54,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 13:44:54,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811187765] [2024-12-02 13:44:54,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:44:54,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 13:44:54,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:44:54,982 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 13:44:54,982 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 13:44:54,983 INFO L87 Difference]: Start difference. First operand 111774 states and 159290 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 9 states have internal predecessors, (100), 0 states have call successors, (0), 0 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 13:44:59,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:44:59,099 INFO L93 Difference]: Finished difference Result 214318 states and 306114 transitions. [2024-12-02 13:44:59,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 13:44:59,100 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 9 states have internal predecessors, (100), 0 states have call successors, (0), 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 13:44:59,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:44:59,289 INFO L225 Difference]: With dead ends: 214318 [2024-12-02 13:44:59,289 INFO L226 Difference]: Without dead ends: 199020 [2024-12-02 13:44:59,319 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-12-02 13:44:59,320 INFO L435 NwaCegarLoop]: 1662 mSDtfsCounter, 9814 mSDsluCounter, 3120 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9814 SdHoareTripleChecker+Valid, 4782 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:44:59,320 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9814 Valid, 4782 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:44:59,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199020 states. [2024-12-02 13:45:02,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199020 to 127070. [2024-12-02 13:45:02,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127070 states, 127068 states have (on average 1.4243239840085624) internal successors, (180986), 127069 states have internal predecessors, (180986), 0 states have call successors, (0), 0 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 13:45:03,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127070 states to 127070 states and 180986 transitions. [2024-12-02 13:45:03,147 INFO L78 Accepts]: Start accepts. Automaton has 127070 states and 180986 transitions. Word has length 106 [2024-12-02 13:45:03,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:45:03,148 INFO L471 AbstractCegarLoop]: Abstraction has 127070 states and 180986 transitions. [2024-12-02 13:45:03,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 9 states have internal predecessors, (100), 0 states have call successors, (0), 0 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 13:45:03,148 INFO L276 IsEmpty]: Start isEmpty. Operand 127070 states and 180986 transitions. [2024-12-02 13:45:03,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-12-02 13:45:03,157 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:45:03,157 INFO L218 NwaCegarLoop]: trace histogram [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 13:45:03,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 13:45:03,157 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:45:03,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:45:03,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1524896782, now seen corresponding path program 1 times [2024-12-02 13:45:03,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:45:03,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563619626] [2024-12-02 13:45:03,158 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:45:03,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:45:03,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:45:03,308 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:45:03,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:45:03,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563619626] [2024-12-02 13:45:03,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563619626] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:45:03,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:45:03,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:45:03,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354313519] [2024-12-02 13:45:03,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:45:03,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:45:03,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:45:03,309 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:45:03,309 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:45:03,310 INFO L87 Difference]: Start difference. First operand 127070 states and 180986 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 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 13:45:06,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:45:06,549 INFO L93 Difference]: Finished difference Result 252578 states and 359100 transitions. [2024-12-02 13:45:06,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:45:06,549 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 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 107 [2024-12-02 13:45:06,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:45:06,671 INFO L225 Difference]: With dead ends: 252578 [2024-12-02 13:45:06,671 INFO L226 Difference]: Without dead ends: 127072 [2024-12-02 13:45:06,730 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 13:45:06,732 INFO L435 NwaCegarLoop]: 1634 mSDtfsCounter, 61 mSDsluCounter, 1571 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 3205 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 13:45:06,732 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 3205 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:45:06,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127072 states. [2024-12-02 13:45:09,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127072 to 127070. [2024-12-02 13:45:10,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127070 states, 127068 states have (on average 1.4119841344791766) internal successors, (179418), 127069 states have internal predecessors, (179418), 0 states have call successors, (0), 0 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 13:45:10,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127070 states to 127070 states and 179418 transitions. [2024-12-02 13:45:10,182 INFO L78 Accepts]: Start accepts. Automaton has 127070 states and 179418 transitions. Word has length 107 [2024-12-02 13:45:10,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:45:10,182 INFO L471 AbstractCegarLoop]: Abstraction has 127070 states and 179418 transitions. [2024-12-02 13:45:10,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 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 13:45:10,182 INFO L276 IsEmpty]: Start isEmpty. Operand 127070 states and 179418 transitions. [2024-12-02 13:45:10,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-12-02 13:45:10,185 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:45:10,185 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 13:45:10,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 13:45:10,186 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:45:10,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:45:10,186 INFO L85 PathProgramCache]: Analyzing trace with hash -916736837, now seen corresponding path program 1 times [2024-12-02 13:45:10,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:45:10,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154465199] [2024-12-02 13:45:10,186 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:45:10,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:45:10,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:45:10,254 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:45:10,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:45:10,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154465199] [2024-12-02 13:45:10,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154465199] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:45:10,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:45:10,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:45:10,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207516240] [2024-12-02 13:45:10,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:45:10,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:45:10,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:45:10,255 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:45:10,256 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:45:10,256 INFO L87 Difference]: Start difference. First operand 127070 states and 179418 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 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 13:45:11,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:45:11,569 INFO L93 Difference]: Finished difference Result 172794 states and 244181 transitions. [2024-12-02 13:45:11,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:45:11,569 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 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 13:45:11,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:45:11,606 INFO L225 Difference]: With dead ends: 172794 [2024-12-02 13:45:11,606 INFO L226 Difference]: Without dead ends: 47288 [2024-12-02 13:45:11,643 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 13:45:11,643 INFO L435 NwaCegarLoop]: 1632 mSDtfsCounter, 55 mSDsluCounter, 1570 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 3202 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 13:45:11,643 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 3202 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:45:11,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47288 states. [2024-12-02 13:45:12,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47288 to 47279. [2024-12-02 13:45:12,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47279 states, 47277 states have (on average 1.418935211625103) internal successors, (67083), 47278 states have internal predecessors, (67083), 0 states have call successors, (0), 0 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 13:45:12,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47279 states to 47279 states and 67083 transitions. [2024-12-02 13:45:12,735 INFO L78 Accepts]: Start accepts. Automaton has 47279 states and 67083 transitions. Word has length 108 [2024-12-02 13:45:12,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:45:12,735 INFO L471 AbstractCegarLoop]: Abstraction has 47279 states and 67083 transitions. [2024-12-02 13:45:12,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 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 13:45:12,735 INFO L276 IsEmpty]: Start isEmpty. Operand 47279 states and 67083 transitions. [2024-12-02 13:45:12,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-12-02 13:45:12,737 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:45:12,737 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2024-12-02 13:45:12,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 13:45:12,737 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:45:12,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:45:12,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1786624096, now seen corresponding path program 1 times [2024-12-02 13:45:12,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:45:12,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36379653] [2024-12-02 13:45:12,738 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:45:12,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:45:12,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:45:12,821 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:45:12,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:45:12,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36379653] [2024-12-02 13:45:12,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36379653] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:45:12,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:45:12,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:45:12,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356799502] [2024-12-02 13:45:12,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:45:12,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:45:12,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:45:12,822 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:45:12,822 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:45:12,822 INFO L87 Difference]: Start difference. First operand 47279 states and 67083 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 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 13:45:13,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:45:13,298 INFO L93 Difference]: Finished difference Result 70131 states and 99181 transitions. [2024-12-02 13:45:13,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:45:13,298 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2024-12-02 13:45:13,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:45:13,319 INFO L225 Difference]: With dead ends: 70131 [2024-12-02 13:45:13,319 INFO L226 Difference]: Without dead ends: 24433 [2024-12-02 13:45:13,338 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 13:45:13,338 INFO L435 NwaCegarLoop]: 1626 mSDtfsCounter, 57 mSDsluCounter, 1555 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 3181 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 13:45:13,338 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 3181 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:45:13,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24433 states. [2024-12-02 13:45:13,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24433 to 24431. [2024-12-02 13:45:13,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24431 states, 24429 states have (on average 1.4210569405215112) internal successors, (34715), 24430 states have internal predecessors, (34715), 0 states have call successors, (0), 0 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 13:45:13,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24431 states to 24431 states and 34715 transitions. [2024-12-02 13:45:13,880 INFO L78 Accepts]: Start accepts. Automaton has 24431 states and 34715 transitions. Word has length 109 [2024-12-02 13:45:13,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:45:13,880 INFO L471 AbstractCegarLoop]: Abstraction has 24431 states and 34715 transitions. [2024-12-02 13:45:13,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 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 13:45:13,881 INFO L276 IsEmpty]: Start isEmpty. Operand 24431 states and 34715 transitions. [2024-12-02 13:45:13,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-12-02 13:45:13,882 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:45:13,882 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:45:13,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 13:45:13,882 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:45:13,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:45:13,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1939036594, now seen corresponding path program 1 times [2024-12-02 13:45:13,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:45:13,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156419756] [2024-12-02 13:45:13,883 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:45:13,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:45:14,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:45:14,148 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:45:14,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:45:14,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156419756] [2024-12-02 13:45:14,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156419756] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:45:14,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:45:14,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:45:14,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251439038] [2024-12-02 13:45:14,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:45:14,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:45:14,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:45:14,150 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:45:14,150 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:45:14,150 INFO L87 Difference]: Start difference. First operand 24431 states and 34715 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 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 13:45:14,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:45:14,650 INFO L93 Difference]: Finished difference Result 35859 states and 50629 transitions. [2024-12-02 13:45:14,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:45:14,651 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2024-12-02 13:45:14,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:45:14,663 INFO L225 Difference]: With dead ends: 35859 [2024-12-02 13:45:14,663 INFO L226 Difference]: Without dead ends: 13009 [2024-12-02 13:45:14,672 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 13:45:14,672 INFO L435 NwaCegarLoop]: 1619 mSDtfsCounter, 54 mSDsluCounter, 1547 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 3166 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 13:45:14,672 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 3166 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:45:14,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13009 states. [2024-12-02 13:45:15,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13009 to 13007. [2024-12-02 13:45:15,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13007 states, 13005 states have (on average 1.435371011149558) internal successors, (18667), 13006 states have internal predecessors, (18667), 0 states have call successors, (0), 0 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 13:45:15,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13007 states to 13007 states and 18667 transitions. [2024-12-02 13:45:15,058 INFO L78 Accepts]: Start accepts. Automaton has 13007 states and 18667 transitions. Word has length 111 [2024-12-02 13:45:15,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:45:15,058 INFO L471 AbstractCegarLoop]: Abstraction has 13007 states and 18667 transitions. [2024-12-02 13:45:15,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 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 13:45:15,058 INFO L276 IsEmpty]: Start isEmpty. Operand 13007 states and 18667 transitions. [2024-12-02 13:45:15,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-12-02 13:45:15,061 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:45:15,061 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:45:15,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 13:45:15,061 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:45:15,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:45:15,062 INFO L85 PathProgramCache]: Analyzing trace with hash 670853700, now seen corresponding path program 1 times [2024-12-02 13:45:15,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:45:15,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769222979] [2024-12-02 13:45:15,062 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:45:15,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:45:15,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:45:15,169 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:45:15,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:45:15,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769222979] [2024-12-02 13:45:15,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769222979] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:45:15,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:45:15,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:45:15,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307011211] [2024-12-02 13:45:15,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:45:15,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:45:15,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:45:15,171 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:45:15,171 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:45:15,171 INFO L87 Difference]: Start difference. First operand 13007 states and 18667 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 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 13:45:15,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:45:15,360 INFO L93 Difference]: Finished difference Result 18723 states and 26557 transitions. [2024-12-02 13:45:15,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:45:15,360 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2024-12-02 13:45:15,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:45:15,371 INFO L225 Difference]: With dead ends: 18723 [2024-12-02 13:45:15,371 INFO L226 Difference]: Without dead ends: 7297 [2024-12-02 13:45:15,376 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 13:45:15,376 INFO L435 NwaCegarLoop]: 1612 mSDtfsCounter, 51 mSDsluCounter, 1539 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 3151 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 13:45:15,376 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 3151 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:45:15,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7297 states. [2024-12-02 13:45:15,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7297 to 7295. [2024-12-02 13:45:15,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7295 states, 7293 states have (on average 1.4686685863156452) internal successors, (10711), 7294 states have internal predecessors, (10711), 0 states have call successors, (0), 0 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 13:45:15,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7295 states to 7295 states and 10711 transitions. [2024-12-02 13:45:15,540 INFO L78 Accepts]: Start accepts. Automaton has 7295 states and 10711 transitions. Word has length 113 [2024-12-02 13:45:15,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:45:15,540 INFO L471 AbstractCegarLoop]: Abstraction has 7295 states and 10711 transitions. [2024-12-02 13:45:15,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 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 13:45:15,540 INFO L276 IsEmpty]: Start isEmpty. Operand 7295 states and 10711 transitions. [2024-12-02 13:45:15,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-12-02 13:45:15,541 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:45:15,541 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:45:15,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-02 13:45:15,542 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:45:15,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:45:15,542 INFO L85 PathProgramCache]: Analyzing trace with hash -360015530, now seen corresponding path program 1 times [2024-12-02 13:45:15,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:45:15,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634467531] [2024-12-02 13:45:15,542 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:45:15,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:45:15,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:45:15,642 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:45:15,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:45:15,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634467531] [2024-12-02 13:45:15,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634467531] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:45:15,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:45:15,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:45:15,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635923215] [2024-12-02 13:45:15,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:45:15,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:45:15,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:45:15,643 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:45:15,643 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:45:15,643 INFO L87 Difference]: Start difference. First operand 7295 states and 10711 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 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 13:45:15,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:45:15,724 INFO L93 Difference]: Finished difference Result 10155 states and 14623 transitions. [2024-12-02 13:45:15,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:45:15,725 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2024-12-02 13:45:15,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:45:15,730 INFO L225 Difference]: With dead ends: 10155 [2024-12-02 13:45:15,730 INFO L226 Difference]: Without dead ends: 4441 [2024-12-02 13:45:15,732 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 13:45:15,733 INFO L435 NwaCegarLoop]: 1605 mSDtfsCounter, 48 mSDsluCounter, 1531 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 3136 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 13:45:15,733 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 3136 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:45:15,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4441 states. [2024-12-02 13:45:15,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4441 to 4439. [2024-12-02 13:45:15,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4439 states, 4437 states have (on average 1.5251295920667118) internal successors, (6767), 4438 states have internal predecessors, (6767), 0 states have call successors, (0), 0 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 13:45:15,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4439 states to 4439 states and 6767 transitions. [2024-12-02 13:45:15,813 INFO L78 Accepts]: Start accepts. Automaton has 4439 states and 6767 transitions. Word has length 115 [2024-12-02 13:45:15,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:45:15,814 INFO L471 AbstractCegarLoop]: Abstraction has 4439 states and 6767 transitions. [2024-12-02 13:45:15,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 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 13:45:15,814 INFO L276 IsEmpty]: Start isEmpty. Operand 4439 states and 6767 transitions. [2024-12-02 13:45:15,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-12-02 13:45:15,815 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:45:15,815 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:45:15,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-02 13:45:15,815 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:45:15,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:45:15,815 INFO L85 PathProgramCache]: Analyzing trace with hash 166921960, now seen corresponding path program 1 times [2024-12-02 13:45:15,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:45:15,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890688256] [2024-12-02 13:45:15,816 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:45:15,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:45:15,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:45:15,912 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:45:15,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:45:15,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890688256] [2024-12-02 13:45:15,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890688256] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:45:15,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:45:15,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:45:15,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523727022] [2024-12-02 13:45:15,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:45:15,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:45:15,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:45:15,914 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:45:15,914 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:45:15,914 INFO L87 Difference]: Start difference. First operand 4439 states and 6767 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:45:15,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:45:15,985 INFO L93 Difference]: Finished difference Result 5871 states and 8707 transitions. [2024-12-02 13:45:15,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:45:15,986 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2024-12-02 13:45:15,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:45:15,991 INFO L225 Difference]: With dead ends: 5871 [2024-12-02 13:45:15,991 INFO L226 Difference]: Without dead ends: 3013 [2024-12-02 13:45:15,992 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 13:45:15,992 INFO L435 NwaCegarLoop]: 1598 mSDtfsCounter, 45 mSDsluCounter, 1523 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 3121 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 13:45:15,992 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 3121 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:45:15,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3013 states. [2024-12-02 13:45:16,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3013 to 3011. [2024-12-02 13:45:16,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3011 states, 3009 states have (on average 1.5992023928215353) internal successors, (4812), 3010 states have internal predecessors, (4812), 0 states have call successors, (0), 0 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 13:45:16,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3011 states to 3011 states and 4812 transitions. [2024-12-02 13:45:16,039 INFO L78 Accepts]: Start accepts. Automaton has 3011 states and 4812 transitions. Word has length 117 [2024-12-02 13:45:16,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:45:16,039 INFO L471 AbstractCegarLoop]: Abstraction has 3011 states and 4812 transitions. [2024-12-02 13:45:16,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:45:16,039 INFO L276 IsEmpty]: Start isEmpty. Operand 3011 states and 4812 transitions. [2024-12-02 13:45:16,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-12-02 13:45:16,040 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:45:16,040 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:45:16,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-12-02 13:45:16,040 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:45:16,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:45:16,040 INFO L85 PathProgramCache]: Analyzing trace with hash 2110968570, now seen corresponding path program 1 times [2024-12-02 13:45:16,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:45:16,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485091296] [2024-12-02 13:45:16,041 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:45:16,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:45:16,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:45:17,014 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:45:17,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:45:17,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485091296] [2024-12-02 13:45:17,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485091296] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:45:17,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [508518176] [2024-12-02 13:45:17,014 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:45:17,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:45:17,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:45:17,016 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:45:17,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 13:45:17,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:45:17,163 INFO L256 TraceCheckSpWp]: Trace formula consists of 562 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-12-02 13:45:17,168 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:45:17,557 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:45:17,557 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:45:18,237 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:45:18,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [508518176] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:45:18,237 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:45:18,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 7, 6] total 22 [2024-12-02 13:45:18,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940148782] [2024-12-02 13:45:18,238 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:45:18,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-12-02 13:45:18,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:45:18,239 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-12-02 13:45:18,239 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=396, Unknown=0, NotChecked=0, Total=462 [2024-12-02 13:45:18,239 INFO L87 Difference]: Start difference. First operand 3011 states and 4812 transitions. Second operand has 22 states, 22 states have (on average 15.636363636363637) internal successors, (344), 22 states have internal predecessors, (344), 0 states have call successors, (0), 0 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 13:45:23,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:45:23,905 INFO L93 Difference]: Finished difference Result 15987 states and 21925 transitions. [2024-12-02 13:45:23,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2024-12-02 13:45:23,906 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 15.636363636363637) internal successors, (344), 22 states have internal predecessors, (344), 0 states have call successors, (0), 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 13:45:23,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:45:23,916 INFO L225 Difference]: With dead ends: 15987 [2024-12-02 13:45:23,916 INFO L226 Difference]: Without dead ends: 14447 [2024-12-02 13:45:23,919 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4063 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=1694, Invalid=9648, Unknown=0, NotChecked=0, Total=11342 [2024-12-02 13:45:23,919 INFO L435 NwaCegarLoop]: 1568 mSDtfsCounter, 22401 mSDsluCounter, 8426 mSDsCounter, 0 mSdLazyCounter, 2092 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22401 SdHoareTripleChecker+Valid, 9994 SdHoareTripleChecker+Invalid, 2215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 2092 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-12-02 13:45:23,920 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22401 Valid, 9994 Invalid, 2215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 2092 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-12-02 13:45:23,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14447 states. [2024-12-02 13:45:24,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14447 to 13211. [2024-12-02 13:45:24,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13211 states, 13209 states have (on average 1.3758043758043759) internal successors, (18173), 13210 states have internal predecessors, (18173), 0 states have call successors, (0), 0 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 13:45:24,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13211 states to 13211 states and 18173 transitions. [2024-12-02 13:45:24,258 INFO L78 Accepts]: Start accepts. Automaton has 13211 states and 18173 transitions. Word has length 119 [2024-12-02 13:45:24,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:45:24,258 INFO L471 AbstractCegarLoop]: Abstraction has 13211 states and 18173 transitions. [2024-12-02 13:45:24,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 15.636363636363637) internal successors, (344), 22 states have internal predecessors, (344), 0 states have call successors, (0), 0 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 13:45:24,259 INFO L276 IsEmpty]: Start isEmpty. Operand 13211 states and 18173 transitions. [2024-12-02 13:45:24,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-12-02 13:45:24,259 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:45:24,260 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, 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 13:45:24,266 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 13:45:24,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-12-02 13:45:24,460 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:45:24,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:45:24,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1034269775, now seen corresponding path program 1 times [2024-12-02 13:45:24,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:45:24,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196943113] [2024-12-02 13:45:24,461 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:45:24,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:45:24,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:45:25,288 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 13 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:45:25,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:45:25,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196943113] [2024-12-02 13:45:25,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196943113] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:45:25,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1320834267] [2024-12-02 13:45:25,289 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:45:25,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:45:25,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:45:25,290 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:45:25,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 13:45:25,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:45:25,419 INFO L256 TraceCheckSpWp]: Trace formula consists of 565 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 13:45:25,422 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:45:25,878 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 17 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:45:25,878 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:45:26,849 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 17 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:45:26,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1320834267] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:45:26,849 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:45:26,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 27 [2024-12-02 13:45:26,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477550185] [2024-12-02 13:45:26,850 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:45:26,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-12-02 13:45:26,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:45:26,851 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-12-02 13:45:26,851 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=668, Unknown=0, NotChecked=0, Total=756 [2024-12-02 13:45:26,851 INFO L87 Difference]: Start difference. First operand 13211 states and 18173 transitions. Second operand has 28 states, 28 states have (on average 10.857142857142858) internal successors, (304), 27 states have internal predecessors, (304), 0 states have call successors, (0), 0 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 13:45:30,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:45:30,720 INFO L93 Difference]: Finished difference Result 60339 states and 79851 transitions. [2024-12-02 13:45:30,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-12-02 13:45:30,720 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 10.857142857142858) internal successors, (304), 27 states have internal predecessors, (304), 0 states have call successors, (0), 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 120 [2024-12-02 13:45:30,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:45:30,753 INFO L225 Difference]: With dead ends: 60339 [2024-12-02 13:45:30,753 INFO L226 Difference]: Without dead ends: 48791 [2024-12-02 13:45:30,765 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1196 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=986, Invalid=4126, Unknown=0, NotChecked=0, Total=5112 [2024-12-02 13:45:30,765 INFO L435 NwaCegarLoop]: 1536 mSDtfsCounter, 19129 mSDsluCounter, 7002 mSDsCounter, 0 mSdLazyCounter, 1410 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19129 SdHoareTripleChecker+Valid, 8538 SdHoareTripleChecker+Invalid, 1444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 13:45:30,765 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19129 Valid, 8538 Invalid, 1444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1410 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 13:45:30,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48791 states. [2024-12-02 13:45:32,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48791 to 47843. [2024-12-02 13:45:32,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47843 states, 47841 states have (on average 1.3055956188206768) internal successors, (62461), 47842 states have internal predecessors, (62461), 0 states have call successors, (0), 0 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 13:45:32,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47843 states to 47843 states and 62461 transitions. [2024-12-02 13:45:32,086 INFO L78 Accepts]: Start accepts. Automaton has 47843 states and 62461 transitions. Word has length 120 [2024-12-02 13:45:32,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:45:32,086 INFO L471 AbstractCegarLoop]: Abstraction has 47843 states and 62461 transitions. [2024-12-02 13:45:32,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 10.857142857142858) internal successors, (304), 27 states have internal predecessors, (304), 0 states have call successors, (0), 0 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 13:45:32,086 INFO L276 IsEmpty]: Start isEmpty. Operand 47843 states and 62461 transitions. [2024-12-02 13:45:32,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-12-02 13:45:32,088 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:45:32,088 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:45:32,094 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 13:45:32,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:45:32,288 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:45:32,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:45:32,288 INFO L85 PathProgramCache]: Analyzing trace with hash -831553087, now seen corresponding path program 1 times [2024-12-02 13:45:32,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:45:32,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368408800] [2024-12-02 13:45:32,289 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:45:32,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:45:32,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:45:32,734 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:45:32,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:45:32,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368408800] [2024-12-02 13:45:32,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368408800] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:45:32,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [232204299] [2024-12-02 13:45:32,734 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:45:32,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:45:32,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:45:32,736 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:45:32,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 13:45:32,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:45:32,885 INFO L256 TraceCheckSpWp]: Trace formula consists of 567 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 13:45:32,888 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:45:33,384 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:45:33,384 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:45:34,544 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:45:34,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [232204299] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:45:34,544 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:45:34,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-12-02 13:45:34,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295527482] [2024-12-02 13:45:34,544 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:45:34,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-12-02 13:45:34,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:45:34,545 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-12-02 13:45:34,545 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=520, Unknown=0, NotChecked=0, Total=600 [2024-12-02 13:45:34,545 INFO L87 Difference]: Start difference. First operand 47843 states and 62461 transitions. Second operand has 25 states, 25 states have (on average 13.76) internal successors, (344), 24 states have internal predecessors, (344), 0 states have call successors, (0), 0 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 13:45:38,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:45:38,581 INFO L93 Difference]: Finished difference Result 142949 states and 185282 transitions. [2024-12-02 13:45:38,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-12-02 13:45:38,581 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 13.76) internal successors, (344), 24 states have internal predecessors, (344), 0 states have call successors, (0), 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 120 [2024-12-02 13:45:38,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:45:38,646 INFO L225 Difference]: With dead ends: 142949 [2024-12-02 13:45:38,647 INFO L226 Difference]: Without dead ends: 97265 [2024-12-02 13:45:38,669 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 601 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=609, Invalid=2361, Unknown=0, NotChecked=0, Total=2970 [2024-12-02 13:45:38,669 INFO L435 NwaCegarLoop]: 1545 mSDtfsCounter, 21116 mSDsluCounter, 5403 mSDsCounter, 0 mSdLazyCounter, 1184 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21116 SdHoareTripleChecker+Valid, 6948 SdHoareTripleChecker+Invalid, 1212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 13:45:38,670 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21116 Valid, 6948 Invalid, 1212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1184 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 13:45:38,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97265 states. [2024-12-02 13:45:41,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97265 to 92217. [2024-12-02 13:45:41,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92217 states, 92215 states have (on average 1.2778398308301253) internal successors, (117836), 92216 states have internal predecessors, (117836), 0 states have call successors, (0), 0 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 13:45:41,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92217 states to 92217 states and 117836 transitions. [2024-12-02 13:45:41,955 INFO L78 Accepts]: Start accepts. Automaton has 92217 states and 117836 transitions. Word has length 120 [2024-12-02 13:45:41,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:45:41,955 INFO L471 AbstractCegarLoop]: Abstraction has 92217 states and 117836 transitions. [2024-12-02 13:45:41,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 13.76) internal successors, (344), 24 states have internal predecessors, (344), 0 states have call successors, (0), 0 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 13:45:41,956 INFO L276 IsEmpty]: Start isEmpty. Operand 92217 states and 117836 transitions. [2024-12-02 13:45:41,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 13:45:41,957 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:45:41,958 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] [2024-12-02 13:45:41,967 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 13:45:42,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2024-12-02 13:45:42,158 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:45:42,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:45:42,159 INFO L85 PathProgramCache]: Analyzing trace with hash -313438449, now seen corresponding path program 1 times [2024-12-02 13:45:42,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:45:42,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743011879] [2024-12-02 13:45:42,159 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:45:42,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:45:42,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:45:42,261 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 13:45:42,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:45:42,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743011879] [2024-12-02 13:45:42,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743011879] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:45:42,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:45:42,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:45:42,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387707554] [2024-12-02 13:45:42,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:45:42,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:45:42,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:45:42,262 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:45:42,262 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:45:42,262 INFO L87 Difference]: Start difference. First operand 92217 states and 117836 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 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 13:45:50,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:45:50,059 INFO L93 Difference]: Finished difference Result 95974 states and 124834 transitions. [2024-12-02 13:45:50,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:45:50,060 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2024-12-02 13:45:50,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:45:50,118 INFO L225 Difference]: With dead ends: 95974 [2024-12-02 13:45:50,118 INFO L226 Difference]: Without dead ends: 94470 [2024-12-02 13:45:50,128 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:45:50,128 INFO L435 NwaCegarLoop]: 838 mSDtfsCounter, 2438 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 4789 mSolverCounterSat, 1179 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2438 SdHoareTripleChecker+Valid, 857 SdHoareTripleChecker+Invalid, 5968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1179 IncrementalHoareTripleChecker+Valid, 4789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:45:50,128 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2438 Valid, 857 Invalid, 5968 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1179 Valid, 4789 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-12-02 13:45:50,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94470 states. [2024-12-02 13:45:53,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94470 to 94470. [2024-12-02 13:45:53,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94470 states, 94468 states have (on average 1.2747808781809713) internal successors, (120426), 94469 states have internal predecessors, (120426), 0 states have call successors, (0), 0 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 13:45:53,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94470 states to 94470 states and 120426 transitions. [2024-12-02 13:45:53,180 INFO L78 Accepts]: Start accepts. Automaton has 94470 states and 120426 transitions. Word has length 121 [2024-12-02 13:45:53,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:45:53,180 INFO L471 AbstractCegarLoop]: Abstraction has 94470 states and 120426 transitions. [2024-12-02 13:45:53,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 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 13:45:53,180 INFO L276 IsEmpty]: Start isEmpty. Operand 94470 states and 120426 transitions. [2024-12-02 13:45:53,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-12-02 13:45:53,183 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:45:53,183 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:45:53,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-12-02 13:45:53,183 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:45:53,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:45:53,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1943919871, now seen corresponding path program 1 times [2024-12-02 13:45:53,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:45:53,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081258970] [2024-12-02 13:45:53,183 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:45:53,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:45:53,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:45:53,678 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:45:53,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:45:53,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081258970] [2024-12-02 13:45:53,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081258970] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:45:53,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019298672] [2024-12-02 13:45:53,678 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:45:53,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:45:53,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:45:53,680 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:45:53,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 13:45:53,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:45:53,820 INFO L256 TraceCheckSpWp]: Trace formula consists of 571 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-12-02 13:45:53,824 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:45:54,631 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:45:54,631 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:45:56,876 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:45:56,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2019298672] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:45:56,876 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:45:56,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 12] total 32 [2024-12-02 13:45:56,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936679460] [2024-12-02 13:45:56,877 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:45:56,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-12-02 13:45:56,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:45:56,877 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-12-02 13:45:56,877 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=875, Unknown=0, NotChecked=0, Total=992 [2024-12-02 13:45:56,877 INFO L87 Difference]: Start difference. First operand 94470 states and 120426 transitions. Second operand has 32 states, 32 states have (on average 10.8125) internal successors, (346), 32 states have internal predecessors, (346), 0 states have call successors, (0), 0 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 13:46:06,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:46:06,746 INFO L93 Difference]: Finished difference Result 308456 states and 394797 transitions. [2024-12-02 13:46:06,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-12-02 13:46:06,747 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 10.8125) internal successors, (346), 32 states have internal predecessors, (346), 0 states have call successors, (0), 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 122 [2024-12-02 13:46:06,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:46:06,923 INFO L225 Difference]: With dead ends: 308456 [2024-12-02 13:46:06,923 INFO L226 Difference]: Without dead ends: 220134 [2024-12-02 13:46:06,972 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1109 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=855, Invalid=3975, Unknown=0, NotChecked=0, Total=4830 [2024-12-02 13:46:06,972 INFO L435 NwaCegarLoop]: 1599 mSDtfsCounter, 20945 mSDsluCounter, 15326 mSDsCounter, 0 mSdLazyCounter, 2074 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20945 SdHoareTripleChecker+Valid, 16925 SdHoareTripleChecker+Invalid, 2129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2074 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:46:06,973 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20945 Valid, 16925 Invalid, 2129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2074 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 13:46:07,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220134 states. [2024-12-02 13:46:15,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220134 to 220120. [2024-12-02 13:46:15,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220120 states, 220118 states have (on average 1.2749797835706302) internal successors, (280646), 220119 states have internal predecessors, (280646), 0 states have call successors, (0), 0 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 13:46:15,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220120 states to 220120 states and 280646 transitions. [2024-12-02 13:46:15,517 INFO L78 Accepts]: Start accepts. Automaton has 220120 states and 280646 transitions. Word has length 122 [2024-12-02 13:46:15,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:46:15,517 INFO L471 AbstractCegarLoop]: Abstraction has 220120 states and 280646 transitions. [2024-12-02 13:46:15,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 10.8125) internal successors, (346), 32 states have internal predecessors, (346), 0 states have call successors, (0), 0 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 13:46:15,518 INFO L276 IsEmpty]: Start isEmpty. Operand 220120 states and 280646 transitions. [2024-12-02 13:46:15,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-12-02 13:46:15,522 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:46:15,523 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:46:15,530 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 13:46:15,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-12-02 13:46:15,723 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:46:15,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:46:15,724 INFO L85 PathProgramCache]: Analyzing trace with hash -646012175, now seen corresponding path program 1 times [2024-12-02 13:46:15,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:46:15,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901933456] [2024-12-02 13:46:15,724 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:46:15,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:46:15,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:46:16,341 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:46:16,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:46:16,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901933456] [2024-12-02 13:46:16,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901933456] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:46:16,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [737835931] [2024-12-02 13:46:16,341 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:46:16,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:46:16,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:46:16,345 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:46:16,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 13:46:16,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:46:16,545 INFO L256 TraceCheckSpWp]: Trace formula consists of 571 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 13:46:16,550 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:46:17,168 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:46:17,168 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:46:18,413 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:46:18,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [737835931] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:46:18,413 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:46:18,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 21 [2024-12-02 13:46:18,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622686009] [2024-12-02 13:46:18,413 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:46:18,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-12-02 13:46:18,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:46:18,415 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-12-02 13:46:18,415 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=386, Unknown=0, NotChecked=0, Total=462 [2024-12-02 13:46:18,415 INFO L87 Difference]: Start difference. First operand 220120 states and 280646 transitions. Second operand has 22 states, 22 states have (on average 13.5) internal successors, (297), 21 states have internal predecessors, (297), 0 states have call successors, (0), 0 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 13:46:27,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:46:27,378 INFO L93 Difference]: Finished difference Result 429882 states and 548717 transitions. [2024-12-02 13:46:27,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 13:46:27,379 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 13.5) internal successors, (297), 21 states have internal predecessors, (297), 0 states have call successors, (0), 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 122 [2024-12-02 13:46:27,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:46:27,604 INFO L225 Difference]: With dead ends: 429882 [2024-12-02 13:46:27,604 INFO L226 Difference]: Without dead ends: 225948 [2024-12-02 13:46:27,678 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=230, Invalid=762, Unknown=0, NotChecked=0, Total=992 [2024-12-02 13:46:27,679 INFO L435 NwaCegarLoop]: 1554 mSDtfsCounter, 14058 mSDsluCounter, 6483 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14058 SdHoareTripleChecker+Valid, 8037 SdHoareTripleChecker+Invalid, 608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 13:46:27,679 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14058 Valid, 8037 Invalid, 608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 596 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 13:46:27,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225948 states. [2024-12-02 13:46:36,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225948 to 212016. [2024-12-02 13:46:36,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212016 states, 212014 states have (on average 1.263775033724188) internal successors, (267938), 212015 states have internal predecessors, (267938), 0 states have call successors, (0), 0 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 13:46:36,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212016 states to 212016 states and 267938 transitions. [2024-12-02 13:46:36,866 INFO L78 Accepts]: Start accepts. Automaton has 212016 states and 267938 transitions. Word has length 122 [2024-12-02 13:46:36,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:46:36,866 INFO L471 AbstractCegarLoop]: Abstraction has 212016 states and 267938 transitions. [2024-12-02 13:46:36,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 13.5) internal successors, (297), 21 states have internal predecessors, (297), 0 states have call successors, (0), 0 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 13:46:36,866 INFO L276 IsEmpty]: Start isEmpty. Operand 212016 states and 267938 transitions. [2024-12-02 13:46:36,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-02 13:46:36,869 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:46:36,869 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:46:36,879 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 13:46:37,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:46:37,070 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:46:37,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:46:37,070 INFO L85 PathProgramCache]: Analyzing trace with hash 531694088, now seen corresponding path program 1 times [2024-12-02 13:46:37,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:46:37,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707066960] [2024-12-02 13:46:37,070 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:46:37,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:46:37,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:46:37,490 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 13 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:46:37,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:46:37,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707066960] [2024-12-02 13:46:37,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707066960] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:46:37,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1857748357] [2024-12-02 13:46:37,490 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:46:37,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:46:37,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:46:37,492 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:46:37,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 13:46:37,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:46:37,666 INFO L256 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 13:46:37,669 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:46:38,125 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 13 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:46:38,125 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:46:38,893 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 13 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:46:38,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1857748357] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:46:38,893 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:46:38,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 20 [2024-12-02 13:46:38,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226791197] [2024-12-02 13:46:38,894 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:46:38,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-12-02 13:46:38,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:46:38,895 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-12-02 13:46:38,895 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2024-12-02 13:46:38,895 INFO L87 Difference]: Start difference. First operand 212016 states and 267938 transitions. Second operand has 21 states, 21 states have (on average 13.047619047619047) internal successors, (274), 20 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 13:46:54,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:46:54,575 INFO L93 Difference]: Finished difference Result 633873 states and 803312 transitions. [2024-12-02 13:46:54,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 13:46:54,575 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 13.047619047619047) internal successors, (274), 20 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 123 [2024-12-02 13:46:54,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:46:54,992 INFO L225 Difference]: With dead ends: 633873 [2024-12-02 13:46:54,992 INFO L226 Difference]: Without dead ends: 433809 [2024-12-02 13:46:55,074 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=248, Invalid=744, Unknown=0, NotChecked=0, Total=992 [2024-12-02 13:46:55,074 INFO L435 NwaCegarLoop]: 1569 mSDtfsCounter, 14249 mSDsluCounter, 3476 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14249 SdHoareTripleChecker+Valid, 5045 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 13:46:55,074 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14249 Valid, 5045 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 13:46:55,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433809 states. [2024-12-02 13:47:13,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433809 to 429105. [2024-12-02 13:47:13,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429105 states, 429103 states have (on average 1.25082089847892) internal successors, (536731), 429104 states have internal predecessors, (536731), 0 states have call successors, (0), 0 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 13:47:14,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429105 states to 429105 states and 536731 transitions. [2024-12-02 13:47:14,660 INFO L78 Accepts]: Start accepts. Automaton has 429105 states and 536731 transitions. Word has length 123 [2024-12-02 13:47:14,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:47:14,660 INFO L471 AbstractCegarLoop]: Abstraction has 429105 states and 536731 transitions. [2024-12-02 13:47:14,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 13.047619047619047) internal successors, (274), 20 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 13:47:14,661 INFO L276 IsEmpty]: Start isEmpty. Operand 429105 states and 536731 transitions. [2024-12-02 13:47:14,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-12-02 13:47:14,667 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:47:14,667 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:47:14,674 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 13:47:14,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-12-02 13:47:14,867 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:47:14,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:47:14,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1804974433, now seen corresponding path program 1 times [2024-12-02 13:47:14,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:47:14,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383378704] [2024-12-02 13:47:14,868 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:47:14,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:47:14,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:47:15,371 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 11 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:47:15,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:47:15,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383378704] [2024-12-02 13:47:15,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383378704] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:47:15,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [230556478] [2024-12-02 13:47:15,372 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:47:15,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:47:15,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:47:15,374 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:47:15,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 13:47:15,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:47:15,592 INFO L256 TraceCheckSpWp]: Trace formula consists of 575 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 13:47:15,594 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:47:16,387 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 11 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:47:16,387 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:47:17,371 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 11 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:47:17,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [230556478] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:47:17,371 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:47:17,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 21 [2024-12-02 13:47:17,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000775298] [2024-12-02 13:47:17,371 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:47:17,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-12-02 13:47:17,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:47:17,372 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-12-02 13:47:17,372 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=386, Unknown=0, NotChecked=0, Total=462 [2024-12-02 13:47:17,373 INFO L87 Difference]: Start difference. First operand 429105 states and 536731 transitions. Second operand has 22 states, 22 states have (on average 13.045454545454545) internal successors, (287), 21 states have internal predecessors, (287), 0 states have call successors, (0), 0 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 13:47:32,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:47:32,317 INFO L93 Difference]: Finished difference Result 846552 states and 1061253 transitions. [2024-12-02 13:47:32,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 13:47:32,317 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 13.045454545454545) internal successors, (287), 21 states have internal predecessors, (287), 0 states have call successors, (0), 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 124 [2024-12-02 13:47:32,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:47:32,793 INFO L225 Difference]: With dead ends: 846552 [2024-12-02 13:47:32,793 INFO L226 Difference]: Without dead ends: 440373 [2024-12-02 13:47:33,098 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=230, Invalid=762, Unknown=0, NotChecked=0, Total=992 [2024-12-02 13:47:33,098 INFO L435 NwaCegarLoop]: 1564 mSDtfsCounter, 17195 mSDsluCounter, 3610 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17195 SdHoareTripleChecker+Valid, 5174 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 13:47:33,099 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17195 Valid, 5174 Invalid, 678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 662 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 13:47:33,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440373 states. [2024-12-02 13:47:50,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440373 to 417041. [2024-12-02 13:47:50,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417041 states, 417039 states have (on average 1.2421763911768444) internal successors, (518036), 417040 states have internal predecessors, (518036), 0 states have call successors, (0), 0 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 13:47:51,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417041 states to 417041 states and 518036 transitions. [2024-12-02 13:47:51,036 INFO L78 Accepts]: Start accepts. Automaton has 417041 states and 518036 transitions. Word has length 124 [2024-12-02 13:47:51,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:47:51,036 INFO L471 AbstractCegarLoop]: Abstraction has 417041 states and 518036 transitions. [2024-12-02 13:47:51,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 13.045454545454545) internal successors, (287), 21 states have internal predecessors, (287), 0 states have call successors, (0), 0 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 13:47:51,036 INFO L276 IsEmpty]: Start isEmpty. Operand 417041 states and 518036 transitions. [2024-12-02 13:47:51,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-12-02 13:47:51,040 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:47:51,040 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:47:51,047 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-02 13:47:51,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-12-02 13:47:51,241 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:47:51,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:47:51,241 INFO L85 PathProgramCache]: Analyzing trace with hash -674922600, now seen corresponding path program 1 times [2024-12-02 13:47:51,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:47:51,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086186672] [2024-12-02 13:47:51,242 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:47:51,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:47:51,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:47:52,630 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:47:52,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:47:52,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086186672] [2024-12-02 13:47:52,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086186672] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:47:52,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1016203418] [2024-12-02 13:47:52,630 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:47:52,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:47:52,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:47:52,634 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:47:52,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 13:47:52,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:47:52,831 INFO L256 TraceCheckSpWp]: Trace formula consists of 577 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-12-02 13:47:52,832 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:47:54,792 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:47:54,792 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:47:58,373 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:47:58,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1016203418] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:47:58,373 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:47:58,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 16, 15] total 39 [2024-12-02 13:47:58,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577744173] [2024-12-02 13:47:58,373 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:47:58,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2024-12-02 13:47:58,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:47:58,374 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2024-12-02 13:47:58,374 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=1312, Unknown=0, NotChecked=0, Total=1482 [2024-12-02 13:47:58,374 INFO L87 Difference]: Start difference. First operand 417041 states and 518036 transitions. Second operand has 39 states, 39 states have (on average 8.41025641025641) internal successors, (328), 39 states have internal predecessors, (328), 0 states have call successors, (0), 0 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 13:48:25,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:48:25,970 INFO L93 Difference]: Finished difference Result 635921 states and 783396 transitions. [2024-12-02 13:48:25,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2024-12-02 13:48:25,971 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 8.41025641025641) internal successors, (328), 39 states have internal predecessors, (328), 0 states have call successors, (0), 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 125 [2024-12-02 13:48:25,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:48:26,416 INFO L225 Difference]: With dead ends: 635921 [2024-12-02 13:48:26,416 INFO L226 Difference]: Without dead ends: 461028 [2024-12-02 13:48:26,723 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2155 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=1576, Invalid=6256, Unknown=0, NotChecked=0, Total=7832 [2024-12-02 13:48:26,724 INFO L435 NwaCegarLoop]: 1533 mSDtfsCounter, 11205 mSDsluCounter, 19302 mSDsCounter, 0 mSdLazyCounter, 2138 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11205 SdHoareTripleChecker+Valid, 20835 SdHoareTripleChecker+Invalid, 2182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 2138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-12-02 13:48:26,724 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11205 Valid, 20835 Invalid, 2182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 2138 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-12-02 13:48:26,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461028 states. [2024-12-02 13:48:44,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461028 to 407142. [2024-12-02 13:48:44,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407142 states, 407140 states have (on average 1.2426487203418972) internal successors, (505932), 407141 states have internal predecessors, (505932), 0 states have call successors, (0), 0 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 13:48:45,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407142 states to 407142 states and 505932 transitions. [2024-12-02 13:48:45,320 INFO L78 Accepts]: Start accepts. Automaton has 407142 states and 505932 transitions. Word has length 125 [2024-12-02 13:48:45,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:48:45,321 INFO L471 AbstractCegarLoop]: Abstraction has 407142 states and 505932 transitions. [2024-12-02 13:48:45,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 8.41025641025641) internal successors, (328), 39 states have internal predecessors, (328), 0 states have call successors, (0), 0 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 13:48:45,321 INFO L276 IsEmpty]: Start isEmpty. Operand 407142 states and 505932 transitions. [2024-12-02 13:48:45,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-12-02 13:48:45,325 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:48:45,325 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:48:45,332 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-12-02 13:48:45,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-12-02 13:48:45,526 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:48:45,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:48:45,526 INFO L85 PathProgramCache]: Analyzing trace with hash 2141275764, now seen corresponding path program 1 times [2024-12-02 13:48:45,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:48:45,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146814607] [2024-12-02 13:48:45,527 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:48:45,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:48:45,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:48:46,709 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:48:46,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:48:46,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146814607] [2024-12-02 13:48:46,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146814607] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:48:46,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1807905151] [2024-12-02 13:48:46,710 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:48:46,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:48:46,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:48:46,712 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:48:46,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-02 13:48:46,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:48:46,935 INFO L256 TraceCheckSpWp]: Trace formula consists of 577 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 13:48:46,939 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:48:48,930 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:48:48,930 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:48:51,631 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:48:51,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1807905151] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:48:51,631 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:48:51,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15, 14] total 36 [2024-12-02 13:48:51,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489490705] [2024-12-02 13:48:51,631 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:48:51,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-12-02 13:48:51,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:48:51,632 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-12-02 13:48:51,633 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=1097, Unknown=0, NotChecked=0, Total=1260 [2024-12-02 13:48:51,633 INFO L87 Difference]: Start difference. First operand 407142 states and 505932 transitions. Second operand has 36 states, 36 states have (on average 9.194444444444445) internal successors, (331), 36 states have internal predecessors, (331), 0 states have call successors, (0), 0 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 13:49:14,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:49:14,756 INFO L93 Difference]: Finished difference Result 625592 states and 777473 transitions. [2024-12-02 13:49:14,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-12-02 13:49:14,757 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 9.194444444444445) internal successors, (331), 36 states have internal predecessors, (331), 0 states have call successors, (0), 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 125 [2024-12-02 13:49:14,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:49:15,292 INFO L225 Difference]: With dead ends: 625592 [2024-12-02 13:49:15,292 INFO L226 Difference]: Without dead ends: 524134 [2024-12-02 13:49:15,379 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 750 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=739, Invalid=2801, Unknown=0, NotChecked=0, Total=3540 [2024-12-02 13:49:15,380 INFO L435 NwaCegarLoop]: 1547 mSDtfsCounter, 14887 mSDsluCounter, 20414 mSDsCounter, 0 mSdLazyCounter, 1443 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14887 SdHoareTripleChecker+Valid, 21961 SdHoareTripleChecker+Invalid, 1482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:49:15,380 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14887 Valid, 21961 Invalid, 1482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1443 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 13:49:15,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524134 states. [2024-12-02 13:49:35,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524134 to 384982. [2024-12-02 13:49:35,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384982 states, 384980 states have (on average 1.2410826536443451) internal successors, (477792), 384981 states have internal predecessors, (477792), 0 states have call successors, (0), 0 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 13:49:36,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384982 states to 384982 states and 477792 transitions. [2024-12-02 13:49:36,808 INFO L78 Accepts]: Start accepts. Automaton has 384982 states and 477792 transitions. Word has length 125 [2024-12-02 13:49:36,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:49:36,808 INFO L471 AbstractCegarLoop]: Abstraction has 384982 states and 477792 transitions. [2024-12-02 13:49:36,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 9.194444444444445) internal successors, (331), 36 states have internal predecessors, (331), 0 states have call successors, (0), 0 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 13:49:36,809 INFO L276 IsEmpty]: Start isEmpty. Operand 384982 states and 477792 transitions. [2024-12-02 13:49:36,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-12-02 13:49:36,813 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:49:36,813 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:49:36,819 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-12-02 13:49:37,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-12-02 13:49:37,014 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:49:37,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:49:37,014 INFO L85 PathProgramCache]: Analyzing trace with hash -316288744, now seen corresponding path program 1 times [2024-12-02 13:49:37,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:49:37,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387871489] [2024-12-02 13:49:37,014 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:49:37,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:49:37,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:49:37,928 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:49:37,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:49:37,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387871489] [2024-12-02 13:49:37,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387871489] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:49:37,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [283557798] [2024-12-02 13:49:37,928 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:49:37,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:49:37,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:49:37,930 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:49:37,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-12-02 13:49:38,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:49:38,122 INFO L256 TraceCheckSpWp]: Trace formula consists of 577 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-02 13:49:38,124 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:49:39,011 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:49:39,011 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:49:40,209 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:49:40,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [283557798] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:49:40,209 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:49:40,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 30 [2024-12-02 13:49:40,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375984440] [2024-12-02 13:49:40,209 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:49:40,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-12-02 13:49:40,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:49:40,210 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-12-02 13:49:40,210 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=754, Unknown=0, NotChecked=0, Total=870 [2024-12-02 13:49:40,211 INFO L87 Difference]: Start difference. First operand 384982 states and 477792 transitions. Second operand has 30 states, 30 states have (on average 11.433333333333334) internal successors, (343), 30 states have internal predecessors, (343), 0 states have call successors, (0), 0 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 13:50:04,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:50:04,258 INFO L93 Difference]: Finished difference Result 534418 states and 658312 transitions. [2024-12-02 13:50:04,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 13:50:04,259 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 11.433333333333334) internal successors, (343), 30 states have internal predecessors, (343), 0 states have call successors, (0), 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 125 [2024-12-02 13:50:04,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:50:04,648 INFO L225 Difference]: With dead ends: 534418 [2024-12-02 13:50:04,648 INFO L226 Difference]: Without dead ends: 433312 [2024-12-02 13:50:04,697 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 385 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=442, Invalid=1628, Unknown=0, NotChecked=0, Total=2070 [2024-12-02 13:50:04,697 INFO L435 NwaCegarLoop]: 1549 mSDtfsCounter, 13353 mSDsluCounter, 15409 mSDsCounter, 0 mSdLazyCounter, 862 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13353 SdHoareTripleChecker+Valid, 16958 SdHoareTripleChecker+Invalid, 883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 13:50:04,697 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13353 Valid, 16958 Invalid, 883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 862 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 13:50:04,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433312 states. [2024-12-02 13:50:23,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433312 to 362726. [2024-12-02 13:50:23,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362726 states, 362724 states have (on average 1.2396643177732931) internal successors, (449656), 362725 states have internal predecessors, (449656), 0 states have call successors, (0), 0 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 13:50:24,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362726 states to 362726 states and 449656 transitions. [2024-12-02 13:50:24,205 INFO L78 Accepts]: Start accepts. Automaton has 362726 states and 449656 transitions. Word has length 125 [2024-12-02 13:50:24,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:50:24,206 INFO L471 AbstractCegarLoop]: Abstraction has 362726 states and 449656 transitions. [2024-12-02 13:50:24,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 11.433333333333334) internal successors, (343), 30 states have internal predecessors, (343), 0 states have call successors, (0), 0 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 13:50:24,206 INFO L276 IsEmpty]: Start isEmpty. Operand 362726 states and 449656 transitions. [2024-12-02 13:50:24,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-12-02 13:50:24,209 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:50:24,209 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:50:24,215 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-12-02 13:50:24,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-12-02 13:50:24,409 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:50:24,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:50:24,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1657418612, now seen corresponding path program 1 times [2024-12-02 13:50:24,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:50:24,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380388182] [2024-12-02 13:50:24,410 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:50:24,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:50:24,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:50:26,089 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:50:26,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:50:26,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380388182] [2024-12-02 13:50:26,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380388182] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:50:26,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [284557022] [2024-12-02 13:50:26,090 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:50:26,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:50:26,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:50:26,091 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:50:26,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-12-02 13:50:26,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:50:26,318 INFO L256 TraceCheckSpWp]: Trace formula consists of 577 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-02 13:50:26,319 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:50:27,132 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 13 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:50:27,132 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:50:28,169 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 13 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:50:28,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [284557022] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:50:28,169 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:50:28,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 12, 12] total 44 [2024-12-02 13:50:28,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371141416] [2024-12-02 13:50:28,170 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:50:28,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2024-12-02 13:50:28,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:50:28,170 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2024-12-02 13:50:28,170 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=1751, Unknown=0, NotChecked=0, Total=1892 [2024-12-02 13:50:28,171 INFO L87 Difference]: Start difference. First operand 362726 states and 449656 transitions. Second operand has 44 states, 44 states have (on average 7.568181818181818) internal successors, (333), 44 states have internal predecessors, (333), 0 states have call successors, (0), 0 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 13:51:23,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:51:23,446 INFO L93 Difference]: Finished difference Result 650874 states and 797804 transitions. [2024-12-02 13:51:23,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2024-12-02 13:51:23,447 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 7.568181818181818) internal successors, (333), 44 states have internal predecessors, (333), 0 states have call successors, (0), 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 125 [2024-12-02 13:51:23,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:51:23,997 INFO L225 Difference]: With dead ends: 650874 [2024-12-02 13:51:23,997 INFO L226 Difference]: Without dead ends: 536620 [2024-12-02 13:51:24,084 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 185 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11707 ImplicationChecksByTransitivity, 24.7s TimeCoverageRelationStatistics Valid=5961, Invalid=28821, Unknown=0, NotChecked=0, Total=34782 [2024-12-02 13:51:24,084 INFO L435 NwaCegarLoop]: 1685 mSDtfsCounter, 22030 mSDsluCounter, 32032 mSDsCounter, 0 mSdLazyCounter, 8112 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22030 SdHoareTripleChecker+Valid, 33717 SdHoareTripleChecker+Invalid, 8206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 8112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2024-12-02 13:51:24,085 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22030 Valid, 33717 Invalid, 8206 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [94 Valid, 8112 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2024-12-02 13:51:24,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536620 states. [2024-12-02 13:51:42,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536620 to 339900. [2024-12-02 13:51:42,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339900 states, 339898 states have (on average 1.2396571912750296) internal successors, (421357), 339899 states have internal predecessors, (421357), 0 states have call successors, (0), 0 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 13:51:42,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339900 states to 339900 states and 421357 transitions. [2024-12-02 13:51:42,553 INFO L78 Accepts]: Start accepts. Automaton has 339900 states and 421357 transitions. Word has length 125 [2024-12-02 13:51:42,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:51:42,553 INFO L471 AbstractCegarLoop]: Abstraction has 339900 states and 421357 transitions. [2024-12-02 13:51:42,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 7.568181818181818) internal successors, (333), 44 states have internal predecessors, (333), 0 states have call successors, (0), 0 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 13:51:42,553 INFO L276 IsEmpty]: Start isEmpty. Operand 339900 states and 421357 transitions. [2024-12-02 13:51:42,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-12-02 13:51:42,555 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:51:42,555 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, 1, 1, 1, 1, 1, 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 13:51:42,562 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-12-02 13:51:42,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-12-02 13:51:42,755 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:51:42,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:51:42,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1511778917, now seen corresponding path program 1 times [2024-12-02 13:51:42,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:51:42,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12901065] [2024-12-02 13:51:42,756 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:51:42,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:51:42,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:51:43,415 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 17 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:51:43,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:51:43,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12901065] [2024-12-02 13:51:43,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12901065] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:51:43,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [609371487] [2024-12-02 13:51:43,415 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:51:43,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:51:43,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:51:43,417 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:51:43,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-12-02 13:51:43,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:51:43,603 INFO L256 TraceCheckSpWp]: Trace formula consists of 577 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-12-02 13:51:43,605 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:51:44,364 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 17 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:51:44,364 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:51:45,401 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 17 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:51:45,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [609371487] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:51:45,401 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:51:45,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13, 13] total 32 [2024-12-02 13:51:45,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533095351] [2024-12-02 13:51:45,402 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:51:45,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-12-02 13:51:45,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:51:45,403 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-12-02 13:51:45,403 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=872, Unknown=0, NotChecked=0, Total=992 [2024-12-02 13:51:45,403 INFO L87 Difference]: Start difference. First operand 339900 states and 421357 transitions. Second operand has 32 states, 32 states have (on average 9.4375) internal successors, (302), 32 states have internal predecessors, (302), 0 states have call successors, (0), 0 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 13:52:36,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:52:36,701 INFO L93 Difference]: Finished difference Result 1078256 states and 1343672 transitions. [2024-12-02 13:52:36,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-12-02 13:52:36,702 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 9.4375) internal successors, (302), 32 states have internal predecessors, (302), 0 states have call successors, (0), 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 126 [2024-12-02 13:52:36,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:52:37,880 INFO L225 Difference]: With dead ends: 1078256 [2024-12-02 13:52:37,880 INFO L226 Difference]: Without dead ends: 995436 [2024-12-02 13:52:38,008 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 543 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=484, Invalid=2168, Unknown=0, NotChecked=0, Total=2652 [2024-12-02 13:52:38,008 INFO L435 NwaCegarLoop]: 1525 mSDtfsCounter, 11685 mSDsluCounter, 14141 mSDsCounter, 0 mSdLazyCounter, 1126 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11685 SdHoareTripleChecker+Valid, 15666 SdHoareTripleChecker+Invalid, 1156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 13:52:38,009 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11685 Valid, 15666 Invalid, 1156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1126 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 13:52:38,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 995436 states. [2024-12-02 13:52:59,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 995436 to 339586. [2024-12-02 13:52:59,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339586 states, 339584 states have (on average 1.2396844374293252) internal successors, (420977), 339585 states have internal predecessors, (420977), 0 states have call successors, (0), 0 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 13:53:00,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339586 states to 339586 states and 420977 transitions. [2024-12-02 13:53:00,308 INFO L78 Accepts]: Start accepts. Automaton has 339586 states and 420977 transitions. Word has length 126 [2024-12-02 13:53:00,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:53:00,309 INFO L471 AbstractCegarLoop]: Abstraction has 339586 states and 420977 transitions. [2024-12-02 13:53:00,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 9.4375) internal successors, (302), 32 states have internal predecessors, (302), 0 states have call successors, (0), 0 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 13:53:00,309 INFO L276 IsEmpty]: Start isEmpty. Operand 339586 states and 420977 transitions. [2024-12-02 13:53:00,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-12-02 13:53:00,311 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:53:00,311 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, 1, 1, 1, 1, 1, 1, 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 13:53:00,321 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-12-02 13:53:00,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:53:00,511 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:53:00,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:53:00,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1639866574, now seen corresponding path program 1 times [2024-12-02 13:53:00,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:53:00,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943807199] [2024-12-02 13:53:00,512 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:53:00,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:53:00,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:53:01,351 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 13 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:53:01,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:53:01,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943807199] [2024-12-02 13:53:01,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943807199] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:53:01,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2075546621] [2024-12-02 13:53:01,352 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:53:01,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:53:01,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:53:01,353 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:53:01,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-12-02 13:53:01,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:53:01,542 INFO L256 TraceCheckSpWp]: Trace formula consists of 576 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-02 13:53:01,543 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:53:02,325 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 13 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:53:02,325 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:53:04,096 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 13 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:53:04,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2075546621] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:53:04,096 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:53:04,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13, 13] total 30 [2024-12-02 13:53:04,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633343030] [2024-12-02 13:53:04,096 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:53:04,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-12-02 13:53:04,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:53:04,097 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-12-02 13:53:04,098 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=756, Unknown=0, NotChecked=0, Total=870 [2024-12-02 13:53:04,098 INFO L87 Difference]: Start difference. First operand 339586 states and 420977 transitions. Second operand has 30 states, 30 states have (on average 9.7) internal successors, (291), 30 states have internal predecessors, (291), 0 states have call successors, (0), 0 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 13:53:34,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:53:34,583 INFO L93 Difference]: Finished difference Result 644751 states and 798838 transitions. [2024-12-02 13:53:34,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-02 13:53:34,584 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 9.7) internal successors, (291), 30 states have internal predecessors, (291), 0 states have call successors, (0), 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 127 [2024-12-02 13:53:34,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:53:35,094 INFO L225 Difference]: With dead ends: 644751 [2024-12-02 13:53:35,094 INFO L226 Difference]: Without dead ends: 538417 [2024-12-02 13:53:35,170 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 408 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=457, Invalid=1705, Unknown=0, NotChecked=0, Total=2162 [2024-12-02 13:53:35,170 INFO L435 NwaCegarLoop]: 1560 mSDtfsCounter, 13867 mSDsluCounter, 14358 mSDsCounter, 0 mSdLazyCounter, 1144 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13867 SdHoareTripleChecker+Valid, 15918 SdHoareTripleChecker+Invalid, 1170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 13:53:35,170 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13867 Valid, 15918 Invalid, 1170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1144 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 13:53:35,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538417 states. [2024-12-02 13:53:56,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538417 to 313316. [2024-12-02 13:53:56,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313316 states, 313314 states have (on average 1.2376338114479404) internal successors, (387768), 313315 states have internal predecessors, (387768), 0 states have call successors, (0), 0 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 13:53:57,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313316 states to 313316 states and 387768 transitions. [2024-12-02 13:53:57,263 INFO L78 Accepts]: Start accepts. Automaton has 313316 states and 387768 transitions. Word has length 127 [2024-12-02 13:53:57,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:53:57,263 INFO L471 AbstractCegarLoop]: Abstraction has 313316 states and 387768 transitions. [2024-12-02 13:53:57,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 9.7) internal successors, (291), 30 states have internal predecessors, (291), 0 states have call successors, (0), 0 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 13:53:57,264 INFO L276 IsEmpty]: Start isEmpty. Operand 313316 states and 387768 transitions. [2024-12-02 13:53:57,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-12-02 13:53:57,282 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:53:57,282 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 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, 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] [2024-12-02 13:53:57,288 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-12-02 13:53:57,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:53:57,482 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:53:57,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:53:57,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1735101744, now seen corresponding path program 1 times [2024-12-02 13:53:57,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:53:57,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106657793] [2024-12-02 13:53:57,483 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:53:57,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:53:57,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:53:58,463 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 31 proven. 122 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:53:58,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:53:58,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106657793] [2024-12-02 13:53:58,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106657793] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:53:58,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1624689447] [2024-12-02 13:53:58,464 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:53:58,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:53:58,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:53:58,465 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:53:58,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c17d3d-12c0-43ba-8a9d-7f69f3ecc80b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-12-02 13:53:58,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:53:58,680 INFO L256 TraceCheckSpWp]: Trace formula consists of 812 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-12-02 13:53:58,684 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:53:59,437 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 66 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:53:59,437 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:54:02,039 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 63 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:54:02,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1624689447] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:54:02,039 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:54:02,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 31 [2024-12-02 13:54:02,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841318637] [2024-12-02 13:54:02,040 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:54:02,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-12-02 13:54:02,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:54:02,041 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-12-02 13:54:02,041 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=879, Unknown=0, NotChecked=0, Total=992 [2024-12-02 13:54:02,041 INFO L87 Difference]: Start difference. First operand 313316 states and 387768 transitions. Second operand has 32 states, 32 states have (on average 16.28125) internal successors, (521), 31 states have internal predecessors, (521), 0 states have call successors, (0), 0 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 13:54:44,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:54:44,238 INFO L93 Difference]: Finished difference Result 1131373 states and 1414112 transitions. [2024-12-02 13:54:44,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2024-12-02 13:54:44,238 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 16.28125) internal successors, (521), 31 states have internal predecessors, (521), 0 states have call successors, (0), 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 189 [2024-12-02 13:54:44,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:54:45,126 INFO L225 Difference]: With dead ends: 1131373 [2024-12-02 13:54:45,126 INFO L226 Difference]: Without dead ends: 835202 [2024-12-02 13:54:45,256 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 439 GetRequests, 358 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1338 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=1338, Invalid=5468, Unknown=0, NotChecked=0, Total=6806 [2024-12-02 13:54:45,257 INFO L435 NwaCegarLoop]: 1583 mSDtfsCounter, 20368 mSDsluCounter, 15181 mSDsCounter, 0 mSdLazyCounter, 2466 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20368 SdHoareTripleChecker+Valid, 16764 SdHoareTripleChecker+Invalid, 2501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 2466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-02 13:54:45,257 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20368 Valid, 16764 Invalid, 2501 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [35 Valid, 2466 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-12-02 13:54:45,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835202 states.