./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.needham.2.prop1-back-serstep.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_66716438-e880-4914-bab0-049dc7366775/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66716438-e880-4914-bab0-049dc7366775/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_66716438-e880-4914-bab0-049dc7366775/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66716438-e880-4914-bab0-049dc7366775/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.needham.2.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66716438-e880-4914-bab0-049dc7366775/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66716438-e880-4914-bab0-049dc7366775/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 64bit --witnessprinter.graph.data.programhash 2d7983d469186e90364c0d866bef5dcfabf63ddc0034d465b64ab0d79a4cbb0d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 13:24:25,085 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 13:24:25,137 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66716438-e880-4914-bab0-049dc7366775/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-12-02 13:24:25,141 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 13:24:25,141 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 13:24:25,160 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 13:24:25,161 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 13:24:25,161 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 13:24:25,161 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 13:24:25,161 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 13:24:25,162 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 13:24:25,162 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 13:24:25,162 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 13:24:25,162 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 13:24:25,162 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 13:24:25,162 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 13:24:25,162 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 13:24:25,163 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 13:24:25,163 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 13:24:25,163 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 13:24:25,163 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 13:24:25,163 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 13:24:25,163 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 13:24:25,163 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 13:24:25,163 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 13:24:25,163 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 13:24:25,163 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:24:25,163 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:24:25,163 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:24:25,163 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:24:25,163 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 13:24:25,164 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:24:25,164 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:24:25,164 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:24:25,164 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:24:25,164 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 13:24:25,164 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 13:24:25,164 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 13:24:25,164 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 13:24:25,164 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 13:24:25,164 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 13:24:25,164 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 13:24:25,165 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 13:24:25,165 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 13:24:25,165 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 13:24:25,165 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_66716438-e880-4914-bab0-049dc7366775/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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d7983d469186e90364c0d866bef5dcfabf63ddc0034d465b64ab0d79a4cbb0d [2024-12-02 13:24:25,374 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 13:24:25,381 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 13:24:25,383 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 13:24:25,384 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 13:24:25,384 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 13:24:25,385 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66716438-e880-4914-bab0-049dc7366775/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.needham.2.prop1-back-serstep.c [2024-12-02 13:24:27,990 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66716438-e880-4914-bab0-049dc7366775/bin/uautomizer-verify-84ZbGMXZE1/data/fec300d4d/acc9c9cae02e4359bc487b9d0358713b/FLAG5f54c547e [2024-12-02 13:24:28,355 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 13:24:28,356 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66716438-e880-4914-bab0-049dc7366775/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.needham.2.prop1-back-serstep.c [2024-12-02 13:24:28,380 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66716438-e880-4914-bab0-049dc7366775/bin/uautomizer-verify-84ZbGMXZE1/data/fec300d4d/acc9c9cae02e4359bc487b9d0358713b/FLAG5f54c547e [2024-12-02 13:24:28,557 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66716438-e880-4914-bab0-049dc7366775/bin/uautomizer-verify-84ZbGMXZE1/data/fec300d4d/acc9c9cae02e4359bc487b9d0358713b [2024-12-02 13:24:28,559 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 13:24:28,559 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 13:24:28,560 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 13:24:28,560 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 13:24:28,564 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 13:24:28,564 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:24:28" (1/1) ... [2024-12-02 13:24:28,565 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39784fd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:24:28, skipping insertion in model container [2024-12-02 13:24:28,565 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:24:28" (1/1) ... [2024-12-02 13:24:28,634 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 13:24:28,823 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_66716438-e880-4914-bab0-049dc7366775/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.needham.2.prop1-back-serstep.c[1175,1188] [2024-12-02 13:24:29,334 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:24:29,343 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 13:24:29,351 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_66716438-e880-4914-bab0-049dc7366775/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.needham.2.prop1-back-serstep.c[1175,1188] [2024-12-02 13:24:29,664 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:24:29,674 INFO L204 MainTranslator]: Completed translation [2024-12-02 13:24:29,675 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:24:29 WrapperNode [2024-12-02 13:24:29,675 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 13:24:29,676 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 13:24:29,676 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 13:24:29,676 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 13:24:29,681 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:24:29" (1/1) ... [2024-12-02 13:24:29,759 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:24:29" (1/1) ... [2024-12-02 13:24:31,110 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 18716 [2024-12-02 13:24:31,111 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 13:24:31,112 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 13:24:31,112 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 13:24:31,112 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 13:24:31,119 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:24:29" (1/1) ... [2024-12-02 13:24:31,119 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:24:29" (1/1) ... [2024-12-02 13:24:31,358 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:24:29" (1/1) ... [2024-12-02 13:24:31,633 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 13:24:31,633 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:24:29" (1/1) ... [2024-12-02 13:24:31,633 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:24:29" (1/1) ... [2024-12-02 13:24:31,891 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:24:29" (1/1) ... [2024-12-02 13:24:31,933 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:24:29" (1/1) ... [2024-12-02 13:24:32,008 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:24:29" (1/1) ... [2024-12-02 13:24:32,071 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:24:29" (1/1) ... [2024-12-02 13:24:32,109 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:24:29" (1/1) ... [2024-12-02 13:24:32,416 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 13:24:32,416 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 13:24:32,416 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 13:24:32,417 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 13:24:32,417 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:24:29" (1/1) ... [2024-12-02 13:24:32,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:24:32,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66716438-e880-4914-bab0-049dc7366775/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:24:32,440 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66716438-e880-4914-bab0-049dc7366775/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 13:24:32,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66716438-e880-4914-bab0-049dc7366775/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 13:24:32,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 13:24:32,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 13:24:32,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 13:24:32,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 13:24:33,277 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 13:24:33,279 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 13:25:13,965 INFO L? ?]: Removed 9953 outVars from TransFormulas that were not future-live. [2024-12-02 13:25:13,965 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 13:25:14,045 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 13:25:14,045 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-02 13:25:14,046 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:25:14 BoogieIcfgContainer [2024-12-02 13:25:14,046 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 13:25:14,048 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 13:25:14,048 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 13:25:14,052 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 13:25:14,052 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:24:28" (1/3) ... [2024-12-02 13:25:14,053 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ea0ba08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:25:14, skipping insertion in model container [2024-12-02 13:25:14,053 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:24:29" (2/3) ... [2024-12-02 13:25:14,053 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ea0ba08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:25:14, skipping insertion in model container [2024-12-02 13:25:14,054 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:25:14" (3/3) ... [2024-12-02 13:25:14,055 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.needham.2.prop1-back-serstep.c [2024-12-02 13:25:14,069 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 13:25:14,071 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.needham.2.prop1-back-serstep.c that has 1 procedures, 6707 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 13:25:14,212 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 13:25:14,223 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;@f3a80ea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 13:25:14,224 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 13:25:14,243 INFO L276 IsEmpty]: Start isEmpty. Operand has 6707 states, 6705 states have (on average 1.5036539895600298) internal successors, (10082), 6706 states have internal predecessors, (10082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:25:14,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 530 [2024-12-02 13:25:14,274 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:25:14,274 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:25:14,275 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:25:14,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:25:14,280 INFO L85 PathProgramCache]: Analyzing trace with hash -695185611, now seen corresponding path program 1 times [2024-12-02 13:25:14,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:25:14,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155656788] [2024-12-02 13:25:14,288 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:25:14,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:25:14,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:25:16,868 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 13:25:16,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:25:16,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155656788] [2024-12-02 13:25:16,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155656788] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:25:16,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:25:16,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:25:16,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285565734] [2024-12-02 13:25:16,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:25:16,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:25:16,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:25:16,896 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:25:16,896 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:25:16,910 INFO L87 Difference]: Start difference. First operand has 6707 states, 6705 states have (on average 1.5036539895600298) internal successors, (10082), 6706 states have internal predecessors, (10082), 0 states have call successors, (0), 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 4 states, 4 states have (on average 132.25) internal successors, (529), 4 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:25:17,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:25:17,306 INFO L93 Difference]: Finished difference Result 13203 states and 19851 transitions. [2024-12-02 13:25:17,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:25:17,309 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 132.25) internal successors, (529), 4 states have internal predecessors, (529), 0 states have call successors, (0), 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 529 [2024-12-02 13:25:17,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:25:17,344 INFO L225 Difference]: With dead ends: 13203 [2024-12-02 13:25:17,345 INFO L226 Difference]: Without dead ends: 6706 [2024-12-02 13:25:17,355 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:25:17,358 INFO L435 NwaCegarLoop]: 10076 mSDtfsCounter, 0 mSDsluCounter, 20146 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 30222 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:25:17,359 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 30222 Invalid, 11 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:25:17,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6706 states. [2024-12-02 13:25:17,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6706 to 6706. [2024-12-02 13:25:17,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6706 states, 6705 states have (on average 1.5033557046979866) internal successors, (10080), 6705 states have internal predecessors, (10080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:25:17,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6706 states to 6706 states and 10080 transitions. [2024-12-02 13:25:17,569 INFO L78 Accepts]: Start accepts. Automaton has 6706 states and 10080 transitions. Word has length 529 [2024-12-02 13:25:17,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:25:17,570 INFO L471 AbstractCegarLoop]: Abstraction has 6706 states and 10080 transitions. [2024-12-02 13:25:17,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 132.25) internal successors, (529), 4 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:25:17,571 INFO L276 IsEmpty]: Start isEmpty. Operand 6706 states and 10080 transitions. [2024-12-02 13:25:17,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 531 [2024-12-02 13:25:17,583 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:25:17,583 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:25:17,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 13:25:17,584 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:25:17,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:25:17,585 INFO L85 PathProgramCache]: Analyzing trace with hash -74218902, now seen corresponding path program 1 times [2024-12-02 13:25:17,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:25:17,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774494132] [2024-12-02 13:25:17,585 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:25:17,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:25:17,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:25:18,754 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 13:25:18,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:25:18,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774494132] [2024-12-02 13:25:18,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774494132] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:25:18,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:25:18,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:25:18,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159343414] [2024-12-02 13:25:18,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:25:18,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:25:18,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:25:18,758 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:25:18,758 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:25:18,758 INFO L87 Difference]: Start difference. First operand 6706 states and 10080 transitions. Second operand has 4 states, 4 states have (on average 132.5) internal successors, (530), 4 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:25:19,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:25:19,061 INFO L93 Difference]: Finished difference Result 13204 states and 19849 transitions. [2024-12-02 13:25:19,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:25:19,062 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 132.5) internal successors, (530), 4 states have internal predecessors, (530), 0 states have call successors, (0), 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 530 [2024-12-02 13:25:19,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:25:19,084 INFO L225 Difference]: With dead ends: 13204 [2024-12-02 13:25:19,085 INFO L226 Difference]: Without dead ends: 6708 [2024-12-02 13:25:19,091 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:25:19,092 INFO L435 NwaCegarLoop]: 10076 mSDtfsCounter, 0 mSDsluCounter, 20142 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 30218 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:25:19,092 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 30218 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:25:19,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6708 states. [2024-12-02 13:25:19,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6708 to 6708. [2024-12-02 13:25:19,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6708 states, 6707 states have (on average 1.5032056060831966) internal successors, (10082), 6707 states have internal predecessors, (10082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:25:19,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6708 states to 6708 states and 10082 transitions. [2024-12-02 13:25:19,243 INFO L78 Accepts]: Start accepts. Automaton has 6708 states and 10082 transitions. Word has length 530 [2024-12-02 13:25:19,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:25:19,244 INFO L471 AbstractCegarLoop]: Abstraction has 6708 states and 10082 transitions. [2024-12-02 13:25:19,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 132.5) internal successors, (530), 4 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:25:19,245 INFO L276 IsEmpty]: Start isEmpty. Operand 6708 states and 10082 transitions. [2024-12-02 13:25:19,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 532 [2024-12-02 13:25:19,249 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:25:19,250 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:25:19,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 13:25:19,250 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:25:19,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:25:19,251 INFO L85 PathProgramCache]: Analyzing trace with hash 896218798, now seen corresponding path program 1 times [2024-12-02 13:25:19,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:25:19,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076279911] [2024-12-02 13:25:19,251 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:25:19,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:25:19,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:25:19,995 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 13:25:19,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:25:19,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076279911] [2024-12-02 13:25:19,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076279911] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:25:19,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:25:19,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:25:19,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342694395] [2024-12-02 13:25:19,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:25:19,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:25:19,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:25:19,998 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:25:19,998 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:25:19,998 INFO L87 Difference]: Start difference. First operand 6708 states and 10082 transitions. Second operand has 5 states, 5 states have (on average 106.2) internal successors, (531), 5 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:25:20,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:25:20,258 INFO L93 Difference]: Finished difference Result 19686 states and 29593 transitions. [2024-12-02 13:25:20,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:25:20,259 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 106.2) internal successors, (531), 5 states have internal predecessors, (531), 0 states have call successors, (0), 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 531 [2024-12-02 13:25:20,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:25:20,291 INFO L225 Difference]: With dead ends: 19686 [2024-12-02 13:25:20,291 INFO L226 Difference]: Without dead ends: 13188 [2024-12-02 13:25:20,299 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:25:20,300 INFO L435 NwaCegarLoop]: 10074 mSDtfsCounter, 9533 mSDsluCounter, 29903 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9533 SdHoareTripleChecker+Valid, 39977 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:25:20,300 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9533 Valid, 39977 Invalid, 22 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:25:20,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13188 states. [2024-12-02 13:25:20,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13188 to 7542. [2024-12-02 13:25:20,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7542 states, 7541 states have (on average 1.502718472351147) internal successors, (11332), 7541 states have internal predecessors, (11332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:25:20,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7542 states to 7542 states and 11332 transitions. [2024-12-02 13:25:20,476 INFO L78 Accepts]: Start accepts. Automaton has 7542 states and 11332 transitions. Word has length 531 [2024-12-02 13:25:20,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:25:20,477 INFO L471 AbstractCegarLoop]: Abstraction has 7542 states and 11332 transitions. [2024-12-02 13:25:20,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 106.2) internal successors, (531), 5 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:25:20,477 INFO L276 IsEmpty]: Start isEmpty. Operand 7542 states and 11332 transitions. [2024-12-02 13:25:20,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3681 [2024-12-02 13:25:20,535 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:25:20,536 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:25:20,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 13:25:20,536 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:25:20,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:25:20,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1133418448, now seen corresponding path program 1 times [2024-12-02 13:25:20,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:25:20,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641058438] [2024-12-02 13:25:20,540 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:25:20,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:25:25,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:25:32,433 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:25:32,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:25:32,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641058438] [2024-12-02 13:25:32,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641058438] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:25:32,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:25:32,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:25:32,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948574900] [2024-12-02 13:25:32,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:25:32,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:25:32,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:25:32,440 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:25:32,440 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:25:32,441 INFO L87 Difference]: Start difference. First operand 7542 states and 11332 transitions. Second operand has 3 states, 3 states have (on average 1226.6666666666667) internal successors, (3680), 3 states have internal predecessors, (3680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:25:32,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:25:32,519 INFO L93 Difference]: Finished difference Result 14041 states and 21102 transitions. [2024-12-02 13:25:32,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:25:32,520 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1226.6666666666667) internal successors, (3680), 3 states have internal predecessors, (3680), 0 states have call successors, (0), 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 3680 [2024-12-02 13:25:32,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:25:32,532 INFO L225 Difference]: With dead ends: 14041 [2024-12-02 13:25:32,532 INFO L226 Difference]: Without dead ends: 7543 [2024-12-02 13:25:32,538 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 13:25:32,538 INFO L435 NwaCegarLoop]: 10077 mSDtfsCounter, 0 mSDsluCounter, 10071 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20148 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:25:32,539 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20148 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:25:32,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7543 states. [2024-12-02 13:25:32,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7543 to 7543. [2024-12-02 13:25:32,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7543 states, 7542 states have (on average 1.5026518164942986) internal successors, (11333), 7542 states have internal predecessors, (11333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:25:32,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7543 states to 7543 states and 11333 transitions. [2024-12-02 13:25:32,637 INFO L78 Accepts]: Start accepts. Automaton has 7543 states and 11333 transitions. Word has length 3680 [2024-12-02 13:25:32,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:25:32,638 INFO L471 AbstractCegarLoop]: Abstraction has 7543 states and 11333 transitions. [2024-12-02 13:25:32,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1226.6666666666667) internal successors, (3680), 3 states have internal predecessors, (3680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:25:32,639 INFO L276 IsEmpty]: Start isEmpty. Operand 7543 states and 11333 transitions. [2024-12-02 13:25:32,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3681 [2024-12-02 13:25:32,805 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:25:32,808 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:25:32,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 13:25:32,809 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:25:32,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:25:32,812 INFO L85 PathProgramCache]: Analyzing trace with hash 907631041, now seen corresponding path program 1 times [2024-12-02 13:25:32,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:25:32,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75642081] [2024-12-02 13:25:32,813 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:25:32,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:25:36,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:25:42,205 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:25:42,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:25:42,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75642081] [2024-12-02 13:25:42,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75642081] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:25:42,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:25:42,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:25:42,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697041187] [2024-12-02 13:25:42,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:25:42,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:25:42,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:25:42,215 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:25:42,215 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:25:42,217 INFO L87 Difference]: Start difference. First operand 7543 states and 11333 transitions. Second operand has 3 states, 3 states have (on average 1226.6666666666667) internal successors, (3680), 3 states have internal predecessors, (3680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:25:42,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:25:42,355 INFO L93 Difference]: Finished difference Result 14043 states and 21104 transitions. [2024-12-02 13:25:42,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:25:42,357 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1226.6666666666667) internal successors, (3680), 3 states have internal predecessors, (3680), 0 states have call successors, (0), 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 3680 [2024-12-02 13:25:42,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:25:42,375 INFO L225 Difference]: With dead ends: 14043 [2024-12-02 13:25:42,375 INFO L226 Difference]: Without dead ends: 7544 [2024-12-02 13:25:42,383 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 13:25:42,384 INFO L435 NwaCegarLoop]: 10077 mSDtfsCounter, 0 mSDsluCounter, 10071 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20148 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:25:42,384 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20148 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:25:42,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7544 states. [2024-12-02 13:25:42,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7544 to 7544. [2024-12-02 13:25:42,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7544 states, 7543 states have (on average 1.502585178311017) internal successors, (11334), 7543 states have internal predecessors, (11334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:25:42,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7544 states to 7544 states and 11334 transitions. [2024-12-02 13:25:42,545 INFO L78 Accepts]: Start accepts. Automaton has 7544 states and 11334 transitions. Word has length 3680 [2024-12-02 13:25:42,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:25:42,547 INFO L471 AbstractCegarLoop]: Abstraction has 7544 states and 11334 transitions. [2024-12-02 13:25:42,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1226.6666666666667) internal successors, (3680), 3 states have internal predecessors, (3680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:25:42,549 INFO L276 IsEmpty]: Start isEmpty. Operand 7544 states and 11334 transitions. [2024-12-02 13:25:42,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3681 [2024-12-02 13:25:42,814 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:25:42,816 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:25:42,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 13:25:42,817 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:25:42,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:25:42,820 INFO L85 PathProgramCache]: Analyzing trace with hash 956670576, now seen corresponding path program 1 times [2024-12-02 13:25:42,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:25:42,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698575277] [2024-12-02 13:25:42,821 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:25:42,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:25:46,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:25:52,503 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:25:52,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:25:52,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698575277] [2024-12-02 13:25:52,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698575277] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:25:52,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:25:52,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:25:52,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612056212] [2024-12-02 13:25:52,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:25:52,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:25:52,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:25:52,507 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:25:52,507 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:25:52,508 INFO L87 Difference]: Start difference. First operand 7544 states and 11334 transitions. Second operand has 3 states, 3 states have (on average 1226.6666666666667) internal successors, (3680), 3 states have internal predecessors, (3680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:25:52,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:25:52,573 INFO L93 Difference]: Finished difference Result 14045 states and 21106 transitions. [2024-12-02 13:25:52,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:25:52,575 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1226.6666666666667) internal successors, (3680), 3 states have internal predecessors, (3680), 0 states have call successors, (0), 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 3680 [2024-12-02 13:25:52,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:25:52,586 INFO L225 Difference]: With dead ends: 14045 [2024-12-02 13:25:52,586 INFO L226 Difference]: Without dead ends: 7545 [2024-12-02 13:25:52,590 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 13:25:52,591 INFO L435 NwaCegarLoop]: 10077 mSDtfsCounter, 0 mSDsluCounter, 10071 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20148 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:25:52,591 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20148 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:25:52,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7545 states. [2024-12-02 13:25:52,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7545 to 7545. [2024-12-02 13:25:52,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7545 states, 7544 states have (on average 1.5025185577942737) internal successors, (11335), 7544 states have internal predecessors, (11335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:25:52,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7545 states to 7545 states and 11335 transitions. [2024-12-02 13:25:52,661 INFO L78 Accepts]: Start accepts. Automaton has 7545 states and 11335 transitions. Word has length 3680 [2024-12-02 13:25:52,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:25:52,664 INFO L471 AbstractCegarLoop]: Abstraction has 7545 states and 11335 transitions. [2024-12-02 13:25:52,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1226.6666666666667) internal successors, (3680), 3 states have internal predecessors, (3680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:25:52,665 INFO L276 IsEmpty]: Start isEmpty. Operand 7545 states and 11335 transitions. [2024-12-02 13:25:52,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3681 [2024-12-02 13:25:52,722 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:25:52,723 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 13:25:52,723 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:25:52,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:25:52,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1951375839, now seen corresponding path program 1 times [2024-12-02 13:25:52,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:25:52,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104489856] [2024-12-02 13:25:52,726 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:25:52,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:25:55,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:26:03,289 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 416 trivial. 0 not checked. [2024-12-02 13:26:03,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:26:03,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104489856] [2024-12-02 13:26:03,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104489856] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:26:03,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:26:03,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:26:03,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405343587] [2024-12-02 13:26:03,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:26:03,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:26:03,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:26:03,295 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:26:03,295 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:26:03,296 INFO L87 Difference]: Start difference. First operand 7545 states and 11335 transitions. Second operand has 5 states, 5 states have (on average 653.0) internal successors, (3265), 5 states have internal predecessors, (3265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:26:03,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:26:03,459 INFO L93 Difference]: Finished difference Result 14050 states and 21111 transitions. [2024-12-02 13:26:03,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:26:03,460 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 653.0) internal successors, (3265), 5 states have internal predecessors, (3265), 0 states have call successors, (0), 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 3680 [2024-12-02 13:26:03,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:26:03,473 INFO L225 Difference]: With dead ends: 14050 [2024-12-02 13:26:03,473 INFO L226 Difference]: Without dead ends: 7549 [2024-12-02 13:26:03,477 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:26:03,477 INFO L435 NwaCegarLoop]: 10076 mSDtfsCounter, 0 mSDsluCounter, 30212 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 40288 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:26:03,478 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 40288 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:26:03,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7549 states. [2024-12-02 13:26:03,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7549 to 7545. [2024-12-02 13:26:03,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7545 states, 7544 states have (on average 1.5025185577942737) internal successors, (11335), 7544 states have internal predecessors, (11335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:26:03,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7545 states to 7545 states and 11335 transitions. [2024-12-02 13:26:03,561 INFO L78 Accepts]: Start accepts. Automaton has 7545 states and 11335 transitions. Word has length 3680 [2024-12-02 13:26:03,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:26:03,562 INFO L471 AbstractCegarLoop]: Abstraction has 7545 states and 11335 transitions. [2024-12-02 13:26:03,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 653.0) internal successors, (3265), 5 states have internal predecessors, (3265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:26:03,563 INFO L276 IsEmpty]: Start isEmpty. Operand 7545 states and 11335 transitions. [2024-12-02 13:26:03,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3682 [2024-12-02 13:26:03,619 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:26:03,620 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:26:03,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 13:26:03,620 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:26:03,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:26:03,622 INFO L85 PathProgramCache]: Analyzing trace with hash 545781342, now seen corresponding path program 1 times [2024-12-02 13:26:03,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:26:03,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331112535] [2024-12-02 13:26:03,623 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:26:03,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:26:06,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:26:15,061 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:26:15,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:26:15,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331112535] [2024-12-02 13:26:15,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331112535] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:26:15,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:26:15,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:26:15,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878873554] [2024-12-02 13:26:15,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:26:15,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:26:15,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:26:15,153 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:26:15,153 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:26:15,154 INFO L87 Difference]: Start difference. First operand 7545 states and 11335 transitions. Second operand has 4 states, 4 states have (on average 920.25) internal successors, (3681), 4 states have internal predecessors, (3681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:26:15,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:26:15,833 INFO L93 Difference]: Finished difference Result 14048 states and 21108 transitions. [2024-12-02 13:26:15,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:26:15,834 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 920.25) internal successors, (3681), 4 states have internal predecessors, (3681), 0 states have call successors, (0), 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 3681 [2024-12-02 13:26:15,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:26:15,843 INFO L225 Difference]: With dead ends: 14048 [2024-12-02 13:26:15,843 INFO L226 Difference]: Without dead ends: 7545 [2024-12-02 13:26:15,848 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 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 13:26:15,848 INFO L435 NwaCegarLoop]: 9747 mSDtfsCounter, 9542 mSDsluCounter, 9743 mSDsCounter, 0 mSdLazyCounter, 654 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9542 SdHoareTripleChecker+Valid, 19490 SdHoareTripleChecker+Invalid, 654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 654 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 13:26:15,848 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9542 Valid, 19490 Invalid, 654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 654 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 13:26:15,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7545 states. [2024-12-02 13:26:15,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7545 to 7545. [2024-12-02 13:26:15,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7545 states, 7544 states have (on average 1.5023860021208908) internal successors, (11334), 7544 states have internal predecessors, (11334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:26:15,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7545 states to 7545 states and 11334 transitions. [2024-12-02 13:26:15,986 INFO L78 Accepts]: Start accepts. Automaton has 7545 states and 11334 transitions. Word has length 3681 [2024-12-02 13:26:15,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:26:15,988 INFO L471 AbstractCegarLoop]: Abstraction has 7545 states and 11334 transitions. [2024-12-02 13:26:15,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 920.25) internal successors, (3681), 4 states have internal predecessors, (3681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:26:15,989 INFO L276 IsEmpty]: Start isEmpty. Operand 7545 states and 11334 transitions. [2024-12-02 13:26:16,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3683 [2024-12-02 13:26:16,152 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:26:16,154 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:26:16,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 13:26:16,154 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:26:16,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:26:16,157 INFO L85 PathProgramCache]: Analyzing trace with hash -396414160, now seen corresponding path program 1 times [2024-12-02 13:26:16,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:26:16,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257932118] [2024-12-02 13:26:16,158 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:26:16,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:26:18,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:26:24,275 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:26:24,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:26:24,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257932118] [2024-12-02 13:26:24,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257932118] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:26:24,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:26:24,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:26:24,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004399337] [2024-12-02 13:26:24,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:26:24,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:26:24,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:26:24,281 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:26:24,281 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:26:24,282 INFO L87 Difference]: Start difference. First operand 7545 states and 11334 transitions. Second operand has 4 states, 4 states have (on average 920.5) internal successors, (3682), 4 states have internal predecessors, (3682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:26:25,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:26:25,270 INFO L93 Difference]: Finished difference Result 13997 states and 21055 transitions. [2024-12-02 13:26:25,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:26:25,271 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 920.5) internal successors, (3682), 4 states have internal predecessors, (3682), 0 states have call successors, (0), 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 3682 [2024-12-02 13:26:25,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:26:25,281 INFO L225 Difference]: With dead ends: 13997 [2024-12-02 13:26:25,282 INFO L226 Difference]: Without dead ends: 7494 [2024-12-02 13:26:25,287 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:26:25,287 INFO L435 NwaCegarLoop]: 9467 mSDtfsCounter, 9424 mSDsluCounter, 9462 mSDsCounter, 0 mSdLazyCounter, 1009 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9424 SdHoareTripleChecker+Valid, 18929 SdHoareTripleChecker+Invalid, 1061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 13:26:25,287 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9424 Valid, 18929 Invalid, 1061 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1009 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 13:26:25,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7494 states. [2024-12-02 13:26:25,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7494 to 7494. [2024-12-02 13:26:25,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7494 states, 7493 states have (on average 1.4987321500066728) internal successors, (11230), 7493 states have internal predecessors, (11230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:26:25,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7494 states to 7494 states and 11230 transitions. [2024-12-02 13:26:25,383 INFO L78 Accepts]: Start accepts. Automaton has 7494 states and 11230 transitions. Word has length 3682 [2024-12-02 13:26:25,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:26:25,384 INFO L471 AbstractCegarLoop]: Abstraction has 7494 states and 11230 transitions. [2024-12-02 13:26:25,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 920.5) internal successors, (3682), 4 states have internal predecessors, (3682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:26:25,385 INFO L276 IsEmpty]: Start isEmpty. Operand 7494 states and 11230 transitions. [2024-12-02 13:26:25,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3684 [2024-12-02 13:26:25,470 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:26:25,472 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 13:26:25,473 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:26:25,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:26:25,475 INFO L85 PathProgramCache]: Analyzing trace with hash 294860566, now seen corresponding path program 1 times [2024-12-02 13:26:25,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:26:25,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099688786] [2024-12-02 13:26:25,476 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:26:25,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:26:28,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:26:33,521 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:26:33,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:26:33,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099688786] [2024-12-02 13:26:33,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099688786] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:26:33,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:26:33,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:26:33,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650124631] [2024-12-02 13:26:33,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:26:33,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:26:33,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:26:33,524 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:26:33,525 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:26:33,525 INFO L87 Difference]: Start difference. First operand 7494 states and 11230 transitions. Second operand has 5 states, 5 states have (on average 736.6) internal successors, (3683), 5 states have internal predecessors, (3683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:26:33,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:26:33,659 INFO L93 Difference]: Finished difference Result 13947 states and 20900 transitions. [2024-12-02 13:26:33,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:26:33,660 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 736.6) internal successors, (3683), 5 states have internal predecessors, (3683), 0 states have call successors, (0), 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 3683 [2024-12-02 13:26:33,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:26:33,665 INFO L225 Difference]: With dead ends: 13947 [2024-12-02 13:26:33,666 INFO L226 Difference]: Without dead ends: 7495 [2024-12-02 13:26:33,670 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:26:33,670 INFO L435 NwaCegarLoop]: 9950 mSDtfsCounter, 9438 mSDsluCounter, 19895 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9438 SdHoareTripleChecker+Valid, 29845 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:26:33,671 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9438 Valid, 29845 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:26:33,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7495 states. [2024-12-02 13:26:33,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7495 to 7495. [2024-12-02 13:26:33,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7495 states, 7494 states have (on average 1.4986655991459834) internal successors, (11231), 7494 states have internal predecessors, (11231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:26:33,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7495 states to 7495 states and 11231 transitions. [2024-12-02 13:26:33,732 INFO L78 Accepts]: Start accepts. Automaton has 7495 states and 11231 transitions. Word has length 3683 [2024-12-02 13:26:33,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:26:33,733 INFO L471 AbstractCegarLoop]: Abstraction has 7495 states and 11231 transitions. [2024-12-02 13:26:33,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 736.6) internal successors, (3683), 5 states have internal predecessors, (3683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:26:33,734 INFO L276 IsEmpty]: Start isEmpty. Operand 7495 states and 11231 transitions. [2024-12-02 13:26:33,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3684 [2024-12-02 13:26:33,802 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:26:33,803 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 13:26:33,804 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:26:33,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:26:33,806 INFO L85 PathProgramCache]: Analyzing trace with hash -440100138, now seen corresponding path program 1 times [2024-12-02 13:26:33,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:26:33,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766419496] [2024-12-02 13:26:33,806 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:26:33,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:26:35,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:26:40,728 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:26:40,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:26:40,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766419496] [2024-12-02 13:26:40,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766419496] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:26:40,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:26:40,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:26:40,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488747177] [2024-12-02 13:26:40,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:26:40,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:26:40,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:26:40,732 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:26:40,732 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:26:40,733 INFO L87 Difference]: Start difference. First operand 7495 states and 11231 transitions. Second operand has 5 states, 5 states have (on average 736.6) internal successors, (3683), 5 states have internal predecessors, (3683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:26:41,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:26:41,265 INFO L93 Difference]: Finished difference Result 13948 states and 20900 transitions. [2024-12-02 13:26:41,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:26:41,266 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 736.6) internal successors, (3683), 5 states have internal predecessors, (3683), 0 states have call successors, (0), 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 3683 [2024-12-02 13:26:41,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:26:41,272 INFO L225 Difference]: With dead ends: 13948 [2024-12-02 13:26:41,272 INFO L226 Difference]: Without dead ends: 7495 [2024-12-02 13:26:41,275 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:26:41,276 INFO L435 NwaCegarLoop]: 9646 mSDtfsCounter, 19379 mSDsluCounter, 9643 mSDsCounter, 0 mSdLazyCounter, 646 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19379 SdHoareTripleChecker+Valid, 19289 SdHoareTripleChecker+Invalid, 647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 13:26:41,276 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19379 Valid, 19289 Invalid, 647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 646 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 13:26:41,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7495 states. [2024-12-02 13:26:41,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7495 to 7495. [2024-12-02 13:26:41,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7495 states, 7494 states have (on average 1.4985321590605818) internal successors, (11230), 7494 states have internal predecessors, (11230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:26:41,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7495 states to 7495 states and 11230 transitions. [2024-12-02 13:26:41,358 INFO L78 Accepts]: Start accepts. Automaton has 7495 states and 11230 transitions. Word has length 3683 [2024-12-02 13:26:41,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:26:41,359 INFO L471 AbstractCegarLoop]: Abstraction has 7495 states and 11230 transitions. [2024-12-02 13:26:41,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 736.6) internal successors, (3683), 5 states have internal predecessors, (3683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:26:41,360 INFO L276 IsEmpty]: Start isEmpty. Operand 7495 states and 11230 transitions. [2024-12-02 13:26:41,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3685 [2024-12-02 13:26:41,438 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:26:41,440 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:26:41,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 13:26:41,440 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:26:41,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:26:41,442 INFO L85 PathProgramCache]: Analyzing trace with hash -495242799, now seen corresponding path program 1 times [2024-12-02 13:26:41,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:26:41,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964301299] [2024-12-02 13:26:41,443 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:26:41,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:26:44,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:26:49,466 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:26:49,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:26:49,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964301299] [2024-12-02 13:26:49,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964301299] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:26:49,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:26:49,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:26:49,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260869628] [2024-12-02 13:26:49,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:26:49,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:26:49,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:26:49,470 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:26:49,470 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:26:49,471 INFO L87 Difference]: Start difference. First operand 7495 states and 11230 transitions. Second operand has 4 states, 4 states have (on average 921.0) internal successors, (3684), 4 states have internal predecessors, (3684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:26:50,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:26:50,346 INFO L93 Difference]: Finished difference Result 13948 states and 20898 transitions. [2024-12-02 13:26:50,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:26:50,347 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 921.0) internal successors, (3684), 4 states have internal predecessors, (3684), 0 states have call successors, (0), 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 3684 [2024-12-02 13:26:50,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:26:50,352 INFO L225 Difference]: With dead ends: 13948 [2024-12-02 13:26:50,352 INFO L226 Difference]: Without dead ends: 7495 [2024-12-02 13:26:50,355 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:26:50,356 INFO L435 NwaCegarLoop]: 9466 mSDtfsCounter, 9407 mSDsluCounter, 9461 mSDsCounter, 0 mSdLazyCounter, 1005 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9407 SdHoareTripleChecker+Valid, 18927 SdHoareTripleChecker+Invalid, 1006 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 13:26:50,356 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9407 Valid, 18927 Invalid, 1006 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1005 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 13:26:50,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7495 states. [2024-12-02 13:26:50,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7495 to 7495. [2024-12-02 13:26:50,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7495 states, 7494 states have (on average 1.4982652788897786) internal successors, (11228), 7494 states have internal predecessors, (11228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:26:50,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7495 states to 7495 states and 11228 transitions. [2024-12-02 13:26:50,414 INFO L78 Accepts]: Start accepts. Automaton has 7495 states and 11228 transitions. Word has length 3684 [2024-12-02 13:26:50,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:26:50,414 INFO L471 AbstractCegarLoop]: Abstraction has 7495 states and 11228 transitions. [2024-12-02 13:26:50,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 921.0) internal successors, (3684), 4 states have internal predecessors, (3684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:26:50,415 INFO L276 IsEmpty]: Start isEmpty. Operand 7495 states and 11228 transitions. [2024-12-02 13:26:50,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3686 [2024-12-02 13:26:50,469 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:26:50,470 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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13:26:50,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 13:26:50,471 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:26:50,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:26:50,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1374098606, now seen corresponding path program 1 times [2024-12-02 13:26:50,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:26:50,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850118364] [2024-12-02 13:26:50,473 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:26:50,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:26:52,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:26:57,685 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:26:57,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:26:57,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850118364] [2024-12-02 13:26:57,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850118364] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:26:57,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:26:57,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:26:57,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801543384] [2024-12-02 13:26:57,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:26:57,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:26:57,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:26:57,689 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:26:57,689 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:26:57,690 INFO L87 Difference]: Start difference. First operand 7495 states and 11228 transitions. Second operand has 5 states, 5 states have (on average 737.0) internal successors, (3685), 5 states have internal predecessors, (3685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:26:57,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:26:57,836 INFO L93 Difference]: Finished difference Result 13949 states and 20896 transitions. [2024-12-02 13:26:57,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:26:57,837 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 737.0) internal successors, (3685), 5 states have internal predecessors, (3685), 0 states have call successors, (0), 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 3685 [2024-12-02 13:26:57,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:26:57,842 INFO L225 Difference]: With dead ends: 13949 [2024-12-02 13:26:57,842 INFO L226 Difference]: Without dead ends: 7496 [2024-12-02 13:26:57,845 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:26:57,846 INFO L435 NwaCegarLoop]: 9949 mSDtfsCounter, 9421 mSDsluCounter, 19893 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9421 SdHoareTripleChecker+Valid, 29842 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:26:57,846 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9421 Valid, 29842 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:26:57,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7496 states. [2024-12-02 13:26:57,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7496 to 7496. [2024-12-02 13:26:57,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7496 states, 7495 states have (on average 1.4981987991994663) internal successors, (11229), 7495 states have internal predecessors, (11229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:26:57,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7496 states to 7496 states and 11229 transitions. [2024-12-02 13:26:57,898 INFO L78 Accepts]: Start accepts. Automaton has 7496 states and 11229 transitions. Word has length 3685 [2024-12-02 13:26:57,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:26:57,899 INFO L471 AbstractCegarLoop]: Abstraction has 7496 states and 11229 transitions. [2024-12-02 13:26:57,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 737.0) internal successors, (3685), 5 states have internal predecessors, (3685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:26:57,899 INFO L276 IsEmpty]: Start isEmpty. Operand 7496 states and 11229 transitions. [2024-12-02 13:26:57,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3686 [2024-12-02 13:26:57,952 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:26:57,953 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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13:26:57,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 13:26:57,953 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:26:57,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:26:57,955 INFO L85 PathProgramCache]: Analyzing trace with hash 2017466478, now seen corresponding path program 1 times [2024-12-02 13:26:57,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:26:57,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938799334] [2024-12-02 13:26:57,955 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:26:57,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:27:00,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:27:05,664 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:27:05,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:27:05,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938799334] [2024-12-02 13:27:05,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938799334] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:27:05,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:27:05,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:27:05,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967260162] [2024-12-02 13:27:05,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:27:05,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:27:05,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:27:05,668 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:27:05,668 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:27:05,669 INFO L87 Difference]: Start difference. First operand 7496 states and 11229 transitions. Second operand has 5 states, 5 states have (on average 737.0) internal successors, (3685), 5 states have internal predecessors, (3685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:27:06,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:27:06,177 INFO L93 Difference]: Finished difference Result 13950 states and 20896 transitions. [2024-12-02 13:27:06,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:27:06,179 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 737.0) internal successors, (3685), 5 states have internal predecessors, (3685), 0 states have call successors, (0), 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 3685 [2024-12-02 13:27:06,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:27:06,183 INFO L225 Difference]: With dead ends: 13950 [2024-12-02 13:27:06,184 INFO L226 Difference]: Without dead ends: 7496 [2024-12-02 13:27:06,187 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:27:06,187 INFO L435 NwaCegarLoop]: 9642 mSDtfsCounter, 9915 mSDsluCounter, 9640 mSDsCounter, 0 mSdLazyCounter, 648 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9915 SdHoareTripleChecker+Valid, 19282 SdHoareTripleChecker+Invalid, 649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 13:27:06,187 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9915 Valid, 19282 Invalid, 649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 648 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 13:27:06,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7496 states. [2024-12-02 13:27:06,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7496 to 7496. [2024-12-02 13:27:06,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7496 states, 7495 states have (on average 1.4980653769179453) internal successors, (11228), 7495 states have internal predecessors, (11228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:27:06,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7496 states to 7496 states and 11228 transitions. [2024-12-02 13:27:06,250 INFO L78 Accepts]: Start accepts. Automaton has 7496 states and 11228 transitions. Word has length 3685 [2024-12-02 13:27:06,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:27:06,250 INFO L471 AbstractCegarLoop]: Abstraction has 7496 states and 11228 transitions. [2024-12-02 13:27:06,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 737.0) internal successors, (3685), 5 states have internal predecessors, (3685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:27:06,251 INFO L276 IsEmpty]: Start isEmpty. Operand 7496 states and 11228 transitions. [2024-12-02 13:27:06,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3687 [2024-12-02 13:27:06,304 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:27:06,305 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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13:27:06,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 13:27:06,305 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:27:06,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:27:06,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1039472992, now seen corresponding path program 1 times [2024-12-02 13:27:06,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:27:06,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210268309] [2024-12-02 13:27:06,307 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:27:06,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:27:09,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:27:14,498 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:27:14,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:27:14,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210268309] [2024-12-02 13:27:14,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210268309] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:27:14,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:27:14,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:27:14,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048809751] [2024-12-02 13:27:14,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:27:14,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:27:14,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:27:14,502 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:27:14,502 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:27:14,503 INFO L87 Difference]: Start difference. First operand 7496 states and 11228 transitions. Second operand has 4 states, 4 states have (on average 921.5) internal successors, (3686), 4 states have internal predecessors, (3686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:27:15,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:27:15,314 INFO L93 Difference]: Finished difference Result 13950 states and 20894 transitions. [2024-12-02 13:27:15,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:27:15,316 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 921.5) internal successors, (3686), 4 states have internal predecessors, (3686), 0 states have call successors, (0), 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 3686 [2024-12-02 13:27:15,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:27:15,321 INFO L225 Difference]: With dead ends: 13950 [2024-12-02 13:27:15,321 INFO L226 Difference]: Without dead ends: 7496 [2024-12-02 13:27:15,324 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:27:15,325 INFO L435 NwaCegarLoop]: 9465 mSDtfsCounter, 9362 mSDsluCounter, 9459 mSDsCounter, 0 mSdLazyCounter, 1001 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9362 SdHoareTripleChecker+Valid, 18924 SdHoareTripleChecker+Invalid, 1002 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1001 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 13:27:15,325 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9362 Valid, 18924 Invalid, 1002 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1001 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 13:27:15,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7496 states. [2024-12-02 13:27:15,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7496 to 7496. [2024-12-02 13:27:15,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7496 states, 7495 states have (on average 1.4977985323549032) internal successors, (11226), 7495 states have internal predecessors, (11226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:27:15,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7496 states to 7496 states and 11226 transitions. [2024-12-02 13:27:15,511 INFO L78 Accepts]: Start accepts. Automaton has 7496 states and 11226 transitions. Word has length 3686 [2024-12-02 13:27:15,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:27:15,511 INFO L471 AbstractCegarLoop]: Abstraction has 7496 states and 11226 transitions. [2024-12-02 13:27:15,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 921.5) internal successors, (3686), 4 states have internal predecessors, (3686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:27:15,512 INFO L276 IsEmpty]: Start isEmpty. Operand 7496 states and 11226 transitions. [2024-12-02 13:27:15,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3688 [2024-12-02 13:27:15,564 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:27:15,566 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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13:27:15,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 13:27:15,566 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:27:15,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:27:15,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1900354778, now seen corresponding path program 1 times [2024-12-02 13:27:15,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:27:15,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623338640] [2024-12-02 13:27:15,570 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:27:15,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:27:17,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:27:23,447 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:27:23,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:27:23,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623338640] [2024-12-02 13:27:23,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623338640] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:27:23,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:27:23,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:27:23,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48427144] [2024-12-02 13:27:23,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:27:23,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:27:23,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:27:23,452 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:27:23,452 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:27:23,453 INFO L87 Difference]: Start difference. First operand 7496 states and 11226 transitions. Second operand has 5 states, 5 states have (on average 737.4) internal successors, (3687), 5 states have internal predecessors, (3687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:27:23,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:27:23,600 INFO L93 Difference]: Finished difference Result 13951 states and 20892 transitions. [2024-12-02 13:27:23,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:27:23,601 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 737.4) internal successors, (3687), 5 states have internal predecessors, (3687), 0 states have call successors, (0), 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 3687 [2024-12-02 13:27:23,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:27:23,605 INFO L225 Difference]: With dead ends: 13951 [2024-12-02 13:27:23,605 INFO L226 Difference]: Without dead ends: 7497 [2024-12-02 13:27:23,609 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:27:23,610 INFO L435 NwaCegarLoop]: 9944 mSDtfsCounter, 9370 mSDsluCounter, 19883 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9370 SdHoareTripleChecker+Valid, 29827 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:27:23,610 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9370 Valid, 29827 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:27:23,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7497 states. [2024-12-02 13:27:23,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7497 to 7497. [2024-12-02 13:27:23,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7497 states, 7496 states have (on average 1.4977321237993597) internal successors, (11227), 7496 states have internal predecessors, (11227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:27:23,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7497 states to 7497 states and 11227 transitions. [2024-12-02 13:27:23,675 INFO L78 Accepts]: Start accepts. Automaton has 7497 states and 11227 transitions. Word has length 3687 [2024-12-02 13:27:23,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:27:23,676 INFO L471 AbstractCegarLoop]: Abstraction has 7497 states and 11227 transitions. [2024-12-02 13:27:23,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 737.4) internal successors, (3687), 5 states have internal predecessors, (3687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:27:23,676 INFO L276 IsEmpty]: Start isEmpty. Operand 7497 states and 11227 transitions. [2024-12-02 13:27:23,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3688 [2024-12-02 13:27:23,758 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:27:23,759 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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13:27:23,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 13:27:23,759 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:27:23,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:27:23,761 INFO L85 PathProgramCache]: Analyzing trace with hash -700418330, now seen corresponding path program 1 times [2024-12-02 13:27:23,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:27:23,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406595148] [2024-12-02 13:27:23,762 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:27:23,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:27:26,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:27:30,788 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:27:30,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:27:30,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406595148] [2024-12-02 13:27:30,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406595148] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:27:30,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:27:30,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:27:30,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293174764] [2024-12-02 13:27:30,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:27:30,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:27:30,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:27:30,794 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:27:30,794 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:27:30,794 INFO L87 Difference]: Start difference. First operand 7497 states and 11227 transitions. Second operand has 5 states, 5 states have (on average 737.4) internal successors, (3687), 5 states have internal predecessors, (3687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:27:31,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:27:31,337 INFO L93 Difference]: Finished difference Result 13951 states and 20891 transitions. [2024-12-02 13:27:31,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:27:31,338 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 737.4) internal successors, (3687), 5 states have internal predecessors, (3687), 0 states have call successors, (0), 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 3687 [2024-12-02 13:27:31,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:27:31,342 INFO L225 Difference]: With dead ends: 13951 [2024-12-02 13:27:31,342 INFO L226 Difference]: Without dead ends: 7496 [2024-12-02 13:27:31,344 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:27:31,344 INFO L435 NwaCegarLoop]: 9642 mSDtfsCounter, 9898 mSDsluCounter, 9640 mSDsCounter, 0 mSdLazyCounter, 642 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9898 SdHoareTripleChecker+Valid, 19282 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 13:27:31,344 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9898 Valid, 19282 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 642 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 13:27:31,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7496 states. [2024-12-02 13:27:31,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7496 to 7496. [2024-12-02 13:27:31,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7496 states, 7495 states have (on average 1.4976651100733822) internal successors, (11225), 7495 states have internal predecessors, (11225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:27:31,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7496 states to 7496 states and 11225 transitions. [2024-12-02 13:27:31,398 INFO L78 Accepts]: Start accepts. Automaton has 7496 states and 11225 transitions. Word has length 3687 [2024-12-02 13:27:31,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:27:31,398 INFO L471 AbstractCegarLoop]: Abstraction has 7496 states and 11225 transitions. [2024-12-02 13:27:31,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 737.4) internal successors, (3687), 5 states have internal predecessors, (3687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:27:31,399 INFO L276 IsEmpty]: Start isEmpty. Operand 7496 states and 11225 transitions. [2024-12-02 13:27:31,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3689 [2024-12-02 13:27:31,451 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:27:31,452 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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13:27:31,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 13:27:31,452 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:27:31,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:27:31,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1386487280, now seen corresponding path program 1 times [2024-12-02 13:27:31,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:27:31,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206341020] [2024-12-02 13:27:31,454 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:27:31,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:27:32,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:27:37,326 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:27:37,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:27:37,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206341020] [2024-12-02 13:27:37,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206341020] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:27:37,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:27:37,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:27:37,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618265954] [2024-12-02 13:27:37,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:27:37,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:27:37,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:27:37,332 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:27:37,332 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:27:37,333 INFO L87 Difference]: Start difference. First operand 7496 states and 11225 transitions. Second operand has 5 states, 5 states have (on average 737.6) internal successors, (3688), 5 states have internal predecessors, (3688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:27:38,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:27:38,204 INFO L93 Difference]: Finished difference Result 13950 states and 20888 transitions. [2024-12-02 13:27:38,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:27:38,205 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 737.6) internal successors, (3688), 5 states have internal predecessors, (3688), 0 states have call successors, (0), 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 3688 [2024-12-02 13:27:38,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:27:38,210 INFO L225 Difference]: With dead ends: 13950 [2024-12-02 13:27:38,210 INFO L226 Difference]: Without dead ends: 7496 [2024-12-02 13:27:38,213 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:27:38,214 INFO L435 NwaCegarLoop]: 9464 mSDtfsCounter, 9894 mSDsluCounter, 9459 mSDsCounter, 0 mSdLazyCounter, 997 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9894 SdHoareTripleChecker+Valid, 18923 SdHoareTripleChecker+Invalid, 999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 13:27:38,214 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9894 Valid, 18923 Invalid, 999 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 997 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 13:27:38,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7496 states. [2024-12-02 13:27:38,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7496 to 7496. [2024-12-02 13:27:38,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7496 states, 7495 states have (on average 1.4973982655103402) internal successors, (11223), 7495 states have internal predecessors, (11223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:27:38,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7496 states to 7496 states and 11223 transitions. [2024-12-02 13:27:38,273 INFO L78 Accepts]: Start accepts. Automaton has 7496 states and 11223 transitions. Word has length 3688 [2024-12-02 13:27:38,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:27:38,273 INFO L471 AbstractCegarLoop]: Abstraction has 7496 states and 11223 transitions. [2024-12-02 13:27:38,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 737.6) internal successors, (3688), 5 states have internal predecessors, (3688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:27:38,274 INFO L276 IsEmpty]: Start isEmpty. Operand 7496 states and 11223 transitions. [2024-12-02 13:27:38,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3690 [2024-12-02 13:27:38,327 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:27:38,328 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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[2024-12-02 13:27:38,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 13:27:38,328 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:27:38,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:27:38,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1687967358, now seen corresponding path program 1 times [2024-12-02 13:27:38,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:27:38,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800093186] [2024-12-02 13:27:38,331 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:27:38,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:27:41,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:27:46,166 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:27:46,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:27:46,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800093186] [2024-12-02 13:27:46,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800093186] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:27:46,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:27:46,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:27:46,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700828907] [2024-12-02 13:27:46,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:27:46,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:27:46,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:27:46,172 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:27:46,172 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:27:46,172 INFO L87 Difference]: Start difference. First operand 7496 states and 11223 transitions. Second operand has 5 states, 5 states have (on average 737.8) internal successors, (3689), 5 states have internal predecessors, (3689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:27:46,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:27:46,694 INFO L93 Difference]: Finished difference Result 13950 states and 20884 transitions. [2024-12-02 13:27:46,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:27:46,695 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 737.8) internal successors, (3689), 5 states have internal predecessors, (3689), 0 states have call successors, (0), 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 3689 [2024-12-02 13:27:46,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:27:46,700 INFO L225 Difference]: With dead ends: 13950 [2024-12-02 13:27:46,700 INFO L226 Difference]: Without dead ends: 7496 [2024-12-02 13:27:46,703 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:27:46,704 INFO L435 NwaCegarLoop]: 9640 mSDtfsCounter, 9845 mSDsluCounter, 9638 mSDsCounter, 0 mSdLazyCounter, 640 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9845 SdHoareTripleChecker+Valid, 19278 SdHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 13:27:46,704 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9845 Valid, 19278 Invalid, 641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 640 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 13:27:46,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7496 states. [2024-12-02 13:27:46,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7496 to 7496. [2024-12-02 13:27:46,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7496 states, 7495 states have (on average 1.4972648432288191) internal successors, (11222), 7495 states have internal predecessors, (11222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:27:46,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7496 states to 7496 states and 11222 transitions. [2024-12-02 13:27:46,756 INFO L78 Accepts]: Start accepts. Automaton has 7496 states and 11222 transitions. Word has length 3689 [2024-12-02 13:27:46,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:27:46,756 INFO L471 AbstractCegarLoop]: Abstraction has 7496 states and 11222 transitions. [2024-12-02 13:27:46,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 737.8) internal successors, (3689), 5 states have internal predecessors, (3689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:27:46,757 INFO L276 IsEmpty]: Start isEmpty. Operand 7496 states and 11222 transitions. [2024-12-02 13:27:46,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3691 [2024-12-02 13:27:46,809 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:27:46,810 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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[2024-12-02 13:27:46,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 13:27:46,811 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:27:46,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:27:46,812 INFO L85 PathProgramCache]: Analyzing trace with hash 727923273, now seen corresponding path program 1 times [2024-12-02 13:27:46,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:27:46,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981773600] [2024-12-02 13:27:46,812 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:27:46,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:27:48,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:27:54,487 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:27:54,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:27:54,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981773600] [2024-12-02 13:27:54,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981773600] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:27:54,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:27:54,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:27:54,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141760151] [2024-12-02 13:27:54,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:27:54,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:27:54,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:27:54,492 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:27:54,492 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:27:54,493 INFO L87 Difference]: Start difference. First operand 7496 states and 11222 transitions. Second operand has 4 states, 4 states have (on average 922.5) internal successors, (3690), 4 states have internal predecessors, (3690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:27:55,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:27:55,274 INFO L93 Difference]: Finished difference Result 13950 states and 20882 transitions. [2024-12-02 13:27:55,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:27:55,275 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 922.5) internal successors, (3690), 4 states have internal predecessors, (3690), 0 states have call successors, (0), 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 3690 [2024-12-02 13:27:55,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:27:55,280 INFO L225 Difference]: With dead ends: 13950 [2024-12-02 13:27:55,280 INFO L226 Difference]: Without dead ends: 7496 [2024-12-02 13:27:55,283 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:27:55,283 INFO L435 NwaCegarLoop]: 9463 mSDtfsCounter, 9292 mSDsluCounter, 9457 mSDsCounter, 0 mSdLazyCounter, 993 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9292 SdHoareTripleChecker+Valid, 18920 SdHoareTripleChecker+Invalid, 994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 993 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 13:27:55,284 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9292 Valid, 18920 Invalid, 994 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 993 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 13:27:55,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7496 states. [2024-12-02 13:27:55,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7496 to 7496. [2024-12-02 13:27:55,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7496 states, 7495 states have (on average 1.496997998665777) internal successors, (11220), 7495 states have internal predecessors, (11220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:27:55,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7496 states to 7496 states and 11220 transitions. [2024-12-02 13:27:55,338 INFO L78 Accepts]: Start accepts. Automaton has 7496 states and 11220 transitions. Word has length 3690 [2024-12-02 13:27:55,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:27:55,338 INFO L471 AbstractCegarLoop]: Abstraction has 7496 states and 11220 transitions. [2024-12-02 13:27:55,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 922.5) internal successors, (3690), 4 states have internal predecessors, (3690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:27:55,339 INFO L276 IsEmpty]: Start isEmpty. Operand 7496 states and 11220 transitions. [2024-12-02 13:27:55,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3692 [2024-12-02 13:27:55,673 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:27:55,674 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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[2024-12-02 13:27:55,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 13:27:55,674 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:27:55,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:27:55,675 INFO L85 PathProgramCache]: Analyzing trace with hash -528990122, now seen corresponding path program 1 times [2024-12-02 13:27:55,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:27:55,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332276030] [2024-12-02 13:27:55,675 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:27:55,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:27:57,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:28:02,678 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:28:02,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:28:02,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332276030] [2024-12-02 13:28:02,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332276030] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:28:02,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:28:02,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:28:02,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540064614] [2024-12-02 13:28:02,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:28:02,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:28:02,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:28:02,681 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:28:02,681 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:28:02,682 INFO L87 Difference]: Start difference. First operand 7496 states and 11220 transitions. Second operand has 5 states, 5 states have (on average 738.2) internal successors, (3691), 5 states have internal predecessors, (3691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:28:02,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:28:02,820 INFO L93 Difference]: Finished difference Result 13951 states and 20880 transitions. [2024-12-02 13:28:02,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:28:02,821 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 738.2) internal successors, (3691), 5 states have internal predecessors, (3691), 0 states have call successors, (0), 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 3691 [2024-12-02 13:28:02,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:28:02,825 INFO L225 Difference]: With dead ends: 13951 [2024-12-02 13:28:02,826 INFO L226 Difference]: Without dead ends: 7497 [2024-12-02 13:28:02,829 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:28:02,830 INFO L435 NwaCegarLoop]: 9940 mSDtfsCounter, 9300 mSDsluCounter, 19875 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9300 SdHoareTripleChecker+Valid, 29815 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:28:02,830 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9300 Valid, 29815 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:28:02,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7497 states. [2024-12-02 13:28:02,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7497 to 7497. [2024-12-02 13:28:02,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7497 states, 7496 states have (on average 1.496931696905016) internal successors, (11221), 7496 states have internal predecessors, (11221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:28:02,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7497 states to 7497 states and 11221 transitions. [2024-12-02 13:28:02,883 INFO L78 Accepts]: Start accepts. Automaton has 7497 states and 11221 transitions. Word has length 3691 [2024-12-02 13:28:02,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:28:02,883 INFO L471 AbstractCegarLoop]: Abstraction has 7497 states and 11221 transitions. [2024-12-02 13:28:02,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 738.2) internal successors, (3691), 5 states have internal predecessors, (3691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:28:02,884 INFO L276 IsEmpty]: Start isEmpty. Operand 7497 states and 11221 transitions. [2024-12-02 13:28:02,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3692 [2024-12-02 13:28:02,936 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:28:02,937 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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[2024-12-02 13:28:02,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 13:28:02,937 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:28:02,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:28:02,938 INFO L85 PathProgramCache]: Analyzing trace with hash -418647018, now seen corresponding path program 1 times [2024-12-02 13:28:02,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:28:02,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283969746] [2024-12-02 13:28:02,939 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:28:02,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:28:05,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:28:10,087 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:28:10,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:28:10,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283969746] [2024-12-02 13:28:10,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283969746] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:28:10,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:28:10,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:28:10,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740247740] [2024-12-02 13:28:10,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:28:10,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:28:10,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:28:10,093 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:28:10,093 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:28:10,094 INFO L87 Difference]: Start difference. First operand 7497 states and 11221 transitions. Second operand has 5 states, 5 states have (on average 738.2) internal successors, (3691), 5 states have internal predecessors, (3691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:28:10,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:28:10,599 INFO L93 Difference]: Finished difference Result 13952 states and 20880 transitions. [2024-12-02 13:28:10,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:28:10,600 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 738.2) internal successors, (3691), 5 states have internal predecessors, (3691), 0 states have call successors, (0), 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 3691 [2024-12-02 13:28:10,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:28:10,605 INFO L225 Difference]: With dead ends: 13952 [2024-12-02 13:28:10,605 INFO L226 Difference]: Without dead ends: 7497 [2024-12-02 13:28:10,608 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:28:10,609 INFO L435 NwaCegarLoop]: 9636 mSDtfsCounter, 19059 mSDsluCounter, 9633 mSDsCounter, 0 mSdLazyCounter, 642 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19059 SdHoareTripleChecker+Valid, 19269 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 13:28:10,609 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19059 Valid, 19269 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 642 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 13:28:10,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7497 states. [2024-12-02 13:28:10,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7497 to 7497. [2024-12-02 13:28:10,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7497 states, 7496 states have (on average 1.4967982924226253) internal successors, (11220), 7496 states have internal predecessors, (11220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:28:10,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7497 states to 7497 states and 11220 transitions. [2024-12-02 13:28:10,666 INFO L78 Accepts]: Start accepts. Automaton has 7497 states and 11220 transitions. Word has length 3691 [2024-12-02 13:28:10,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:28:10,667 INFO L471 AbstractCegarLoop]: Abstraction has 7497 states and 11220 transitions. [2024-12-02 13:28:10,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 738.2) internal successors, (3691), 5 states have internal predecessors, (3691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:28:10,667 INFO L276 IsEmpty]: Start isEmpty. Operand 7497 states and 11220 transitions. [2024-12-02 13:28:10,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3693 [2024-12-02 13:28:10,720 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:28:10,721 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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[2024-12-02 13:28:10,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 13:28:10,721 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:28:10,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:28:10,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1800947267, now seen corresponding path program 1 times [2024-12-02 13:28:10,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:28:10,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092356699] [2024-12-02 13:28:10,722 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:28:10,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:28:13,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:28:18,164 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:28:18,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:28:18,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092356699] [2024-12-02 13:28:18,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092356699] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:28:18,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:28:18,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:28:18,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57810716] [2024-12-02 13:28:18,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:28:18,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:28:18,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:28:18,167 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:28:18,167 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:28:18,167 INFO L87 Difference]: Start difference. First operand 7497 states and 11220 transitions. Second operand has 4 states, 4 states have (on average 923.0) internal successors, (3692), 4 states have internal predecessors, (3692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:28:18,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:28:18,943 INFO L93 Difference]: Finished difference Result 13952 states and 20878 transitions. [2024-12-02 13:28:18,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:28:18,944 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 923.0) internal successors, (3692), 4 states have internal predecessors, (3692), 0 states have call successors, (0), 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 3692 [2024-12-02 13:28:18,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:28:18,949 INFO L225 Difference]: With dead ends: 13952 [2024-12-02 13:28:18,949 INFO L226 Difference]: Without dead ends: 7497 [2024-12-02 13:28:18,952 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:28:18,952 INFO L435 NwaCegarLoop]: 9462 mSDtfsCounter, 9253 mSDsluCounter, 9456 mSDsCounter, 0 mSdLazyCounter, 989 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9253 SdHoareTripleChecker+Valid, 18918 SdHoareTripleChecker+Invalid, 990 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 13:28:18,952 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9253 Valid, 18918 Invalid, 990 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 989 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 13:28:19,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7497 states. [2024-12-02 13:28:19,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7497 to 7497. [2024-12-02 13:28:19,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7497 states, 7496 states have (on average 1.4965314834578443) internal successors, (11218), 7496 states have internal predecessors, (11218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:28:19,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7497 states to 7497 states and 11218 transitions. [2024-12-02 13:28:19,058 INFO L78 Accepts]: Start accepts. Automaton has 7497 states and 11218 transitions. Word has length 3692 [2024-12-02 13:28:19,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:28:19,058 INFO L471 AbstractCegarLoop]: Abstraction has 7497 states and 11218 transitions. [2024-12-02 13:28:19,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 923.0) internal successors, (3692), 4 states have internal predecessors, (3692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:28:19,059 INFO L276 IsEmpty]: Start isEmpty. Operand 7497 states and 11218 transitions. [2024-12-02 13:28:19,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3694 [2024-12-02 13:28:19,111 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:28:19,111 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1] [2024-12-02 13:28:19,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 13:28:19,112 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:28:19,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:28:19,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1213352082, now seen corresponding path program 1 times [2024-12-02 13:28:19,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:28:19,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103504633] [2024-12-02 13:28:19,113 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:28:19,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:28:21,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:28:26,634 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:28:26,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:28:26,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103504633] [2024-12-02 13:28:26,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103504633] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:28:26,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:28:26,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:28:26,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958649780] [2024-12-02 13:28:26,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:28:26,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:28:26,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:28:26,637 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:28:26,637 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:28:26,638 INFO L87 Difference]: Start difference. First operand 7497 states and 11218 transitions. Second operand has 5 states, 5 states have (on average 738.6) internal successors, (3693), 5 states have internal predecessors, (3693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:28:26,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:28:26,855 INFO L93 Difference]: Finished difference Result 13953 states and 20876 transitions. [2024-12-02 13:28:26,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:28:26,856 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 738.6) internal successors, (3693), 5 states have internal predecessors, (3693), 0 states have call successors, (0), 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 3693 [2024-12-02 13:28:26,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:28:26,861 INFO L225 Difference]: With dead ends: 13953 [2024-12-02 13:28:26,861 INFO L226 Difference]: Without dead ends: 7498 [2024-12-02 13:28:26,865 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:28:26,865 INFO L435 NwaCegarLoop]: 9935 mSDtfsCounter, 9261 mSDsluCounter, 19865 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9261 SdHoareTripleChecker+Valid, 29800 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:28:26,866 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9261 Valid, 29800 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:28:26,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7498 states. [2024-12-02 13:28:26,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7498 to 7498. [2024-12-02 13:28:26,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7498 states, 7497 states have (on average 1.4964652527677738) internal successors, (11219), 7497 states have internal predecessors, (11219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:28:26,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7498 states to 7498 states and 11219 transitions. [2024-12-02 13:28:26,926 INFO L78 Accepts]: Start accepts. Automaton has 7498 states and 11219 transitions. Word has length 3693 [2024-12-02 13:28:26,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:28:26,926 INFO L471 AbstractCegarLoop]: Abstraction has 7498 states and 11219 transitions. [2024-12-02 13:28:26,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 738.6) internal successors, (3693), 5 states have internal predecessors, (3693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:28:26,927 INFO L276 IsEmpty]: Start isEmpty. Operand 7498 states and 11219 transitions. [2024-12-02 13:28:26,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3694 [2024-12-02 13:28:26,983 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:28:26,984 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1] [2024-12-02 13:28:26,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 13:28:26,984 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:28:26,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:28:26,986 INFO L85 PathProgramCache]: Analyzing trace with hash -728081618, now seen corresponding path program 1 times [2024-12-02 13:28:26,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:28:26,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026910776] [2024-12-02 13:28:26,986 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:28:26,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:28:30,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:28:34,948 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:28:34,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:28:34,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026910776] [2024-12-02 13:28:34,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026910776] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:28:34,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:28:34,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:28:34,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68665754] [2024-12-02 13:28:34,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:28:34,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:28:34,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:28:34,953 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:28:34,953 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:28:34,953 INFO L87 Difference]: Start difference. First operand 7498 states and 11219 transitions. Second operand has 5 states, 5 states have (on average 738.6) internal successors, (3693), 5 states have internal predecessors, (3693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:28:35,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:28:35,494 INFO L93 Difference]: Finished difference Result 13954 states and 20876 transitions. [2024-12-02 13:28:35,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:28:35,495 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 738.6) internal successors, (3693), 5 states have internal predecessors, (3693), 0 states have call successors, (0), 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 3693 [2024-12-02 13:28:35,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:28:35,500 INFO L225 Difference]: With dead ends: 13954 [2024-12-02 13:28:35,500 INFO L226 Difference]: Without dead ends: 7498 [2024-12-02 13:28:35,503 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:28:35,503 INFO L435 NwaCegarLoop]: 9636 mSDtfsCounter, 19025 mSDsluCounter, 9633 mSDsCounter, 0 mSdLazyCounter, 636 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19025 SdHoareTripleChecker+Valid, 19269 SdHoareTripleChecker+Invalid, 637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 13:28:35,503 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19025 Valid, 19269 Invalid, 637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 636 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 13:28:35,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7498 states. [2024-12-02 13:28:35,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7498 to 7498. [2024-12-02 13:28:35,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7498 states, 7497 states have (on average 1.4963318660797653) internal successors, (11218), 7497 states have internal predecessors, (11218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:28:35,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7498 states to 7498 states and 11218 transitions. [2024-12-02 13:28:35,555 INFO L78 Accepts]: Start accepts. Automaton has 7498 states and 11218 transitions. Word has length 3693 [2024-12-02 13:28:35,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:28:35,556 INFO L471 AbstractCegarLoop]: Abstraction has 7498 states and 11218 transitions. [2024-12-02 13:28:35,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 738.6) internal successors, (3693), 5 states have internal predecessors, (3693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:28:35,557 INFO L276 IsEmpty]: Start isEmpty. Operand 7498 states and 11218 transitions. [2024-12-02 13:28:35,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3695 [2024-12-02 13:28:35,610 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:28:35,610 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1] [2024-12-02 13:28:35,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 13:28:35,611 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:28:35,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:28:35,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1153805122, now seen corresponding path program 1 times [2024-12-02 13:28:35,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:28:35,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983859085] [2024-12-02 13:28:35,612 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:28:35,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:28:38,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:28:42,939 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:28:42,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:28:42,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983859085] [2024-12-02 13:28:42,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983859085] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:28:42,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:28:42,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:28:42,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352042861] [2024-12-02 13:28:42,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:28:42,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:28:42,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:28:42,942 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:28:42,942 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:28:42,943 INFO L87 Difference]: Start difference. First operand 7498 states and 11218 transitions. Second operand has 4 states, 4 states have (on average 923.5) internal successors, (3694), 4 states have internal predecessors, (3694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:28:43,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:28:43,718 INFO L93 Difference]: Finished difference Result 13954 states and 20874 transitions. [2024-12-02 13:28:43,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:28:43,719 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 923.5) internal successors, (3694), 4 states have internal predecessors, (3694), 0 states have call successors, (0), 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 3694 [2024-12-02 13:28:43,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:28:43,724 INFO L225 Difference]: With dead ends: 13954 [2024-12-02 13:28:43,724 INFO L226 Difference]: Without dead ends: 7498 [2024-12-02 13:28:43,727 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:28:43,727 INFO L435 NwaCegarLoop]: 9461 mSDtfsCounter, 9230 mSDsluCounter, 9456 mSDsCounter, 0 mSdLazyCounter, 985 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9230 SdHoareTripleChecker+Valid, 18917 SdHoareTripleChecker+Invalid, 986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 985 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 13:28:43,727 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9230 Valid, 18917 Invalid, 986 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 985 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 13:28:43,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7498 states. [2024-12-02 13:28:43,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7498 to 7498. [2024-12-02 13:28:43,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7498 states, 7497 states have (on average 1.4960650927037482) internal successors, (11216), 7497 states have internal predecessors, (11216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:28:43,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7498 states to 7498 states and 11216 transitions. [2024-12-02 13:28:43,780 INFO L78 Accepts]: Start accepts. Automaton has 7498 states and 11216 transitions. Word has length 3694 [2024-12-02 13:28:43,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:28:43,781 INFO L471 AbstractCegarLoop]: Abstraction has 7498 states and 11216 transitions. [2024-12-02 13:28:43,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 923.5) internal successors, (3694), 4 states have internal predecessors, (3694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:28:43,781 INFO L276 IsEmpty]: Start isEmpty. Operand 7498 states and 11216 transitions. [2024-12-02 13:28:43,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3696 [2024-12-02 13:28:43,834 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:28:43,834 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1] [2024-12-02 13:28:43,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-02 13:28:43,835 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:28:43,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:28:43,836 INFO L85 PathProgramCache]: Analyzing trace with hash 868913062, now seen corresponding path program 1 times [2024-12-02 13:28:43,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:28:43,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195535807] [2024-12-02 13:28:43,837 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:28:43,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:28:46,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:28:50,967 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:28:50,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:28:50,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195535807] [2024-12-02 13:28:50,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195535807] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:28:50,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:28:50,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:28:50,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018054568] [2024-12-02 13:28:50,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:28:50,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:28:50,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:28:50,971 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:28:50,971 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:28:50,972 INFO L87 Difference]: Start difference. First operand 7498 states and 11216 transitions. Second operand has 5 states, 5 states have (on average 739.0) internal successors, (3695), 5 states have internal predecessors, (3695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:28:51,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:28:51,110 INFO L93 Difference]: Finished difference Result 13955 states and 20872 transitions. [2024-12-02 13:28:51,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:28:51,111 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 739.0) internal successors, (3695), 5 states have internal predecessors, (3695), 0 states have call successors, (0), 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 3695 [2024-12-02 13:28:51,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:28:51,115 INFO L225 Difference]: With dead ends: 13955 [2024-12-02 13:28:51,115 INFO L226 Difference]: Without dead ends: 7499 [2024-12-02 13:28:51,118 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:28:51,119 INFO L435 NwaCegarLoop]: 9934 mSDtfsCounter, 9244 mSDsluCounter, 19863 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9244 SdHoareTripleChecker+Valid, 29797 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:28:51,119 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9244 Valid, 29797 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:28:51,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7499 states. [2024-12-02 13:28:51,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7499 to 7499. [2024-12-02 13:28:51,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7499 states, 7498 states have (on average 1.495998933048813) internal successors, (11217), 7498 states have internal predecessors, (11217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:28:51,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7499 states to 7499 states and 11217 transitions. [2024-12-02 13:28:51,173 INFO L78 Accepts]: Start accepts. Automaton has 7499 states and 11217 transitions. Word has length 3695 [2024-12-02 13:28:51,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:28:51,173 INFO L471 AbstractCegarLoop]: Abstraction has 7499 states and 11217 transitions. [2024-12-02 13:28:51,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 739.0) internal successors, (3695), 5 states have internal predecessors, (3695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:28:51,174 INFO L276 IsEmpty]: Start isEmpty. Operand 7499 states and 11217 transitions. [2024-12-02 13:28:51,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3696 [2024-12-02 13:28:51,227 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:28:51,227 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1] [2024-12-02 13:28:51,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-02 13:28:51,228 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:28:51,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:28:51,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1908331366, now seen corresponding path program 1 times [2024-12-02 13:28:51,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:28:51,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947137812] [2024-12-02 13:28:51,229 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:28:51,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:28:53,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:28:58,255 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:28:58,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:28:58,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947137812] [2024-12-02 13:28:58,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947137812] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:28:58,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:28:58,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:28:58,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046974104] [2024-12-02 13:28:58,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:28:58,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:28:58,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:28:58,259 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:28:58,259 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:28:58,260 INFO L87 Difference]: Start difference. First operand 7499 states and 11217 transitions. Second operand has 5 states, 5 states have (on average 739.0) internal successors, (3695), 5 states have internal predecessors, (3695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:28:58,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:28:58,817 INFO L93 Difference]: Finished difference Result 13956 states and 20872 transitions. [2024-12-02 13:28:58,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:28:58,818 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 739.0) internal successors, (3695), 5 states have internal predecessors, (3695), 0 states have call successors, (0), 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 3695 [2024-12-02 13:28:58,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:28:58,823 INFO L225 Difference]: With dead ends: 13956 [2024-12-02 13:28:58,823 INFO L226 Difference]: Without dead ends: 7499 [2024-12-02 13:28:58,826 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:28:58,826 INFO L435 NwaCegarLoop]: 9632 mSDtfsCounter, 18995 mSDsluCounter, 9629 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18995 SdHoareTripleChecker+Valid, 19261 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 13:28:58,826 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18995 Valid, 19261 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 638 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 13:28:58,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7499 states. [2024-12-02 13:28:58,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7499 to 7499. [2024-12-02 13:28:58,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7499 states, 7498 states have (on average 1.4958655641504401) internal successors, (11216), 7498 states have internal predecessors, (11216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:28:58,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7499 states to 7499 states and 11216 transitions. [2024-12-02 13:28:58,879 INFO L78 Accepts]: Start accepts. Automaton has 7499 states and 11216 transitions. Word has length 3695 [2024-12-02 13:28:58,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:28:58,879 INFO L471 AbstractCegarLoop]: Abstraction has 7499 states and 11216 transitions. [2024-12-02 13:28:58,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 739.0) internal successors, (3695), 5 states have internal predecessors, (3695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:28:58,880 INFO L276 IsEmpty]: Start isEmpty. Operand 7499 states and 11216 transitions. [2024-12-02 13:28:58,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3697 [2024-12-02 13:28:58,933 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:28:58,933 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1] [2024-12-02 13:28:58,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-12-02 13:28:58,934 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:28:58,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:28:58,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1164352870, now seen corresponding path program 1 times [2024-12-02 13:28:58,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:28:58,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927258707] [2024-12-02 13:28:58,935 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:28:58,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:29:01,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:29:06,128 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:29:06,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:29:06,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927258707] [2024-12-02 13:29:06,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927258707] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:29:06,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:29:06,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:29:06,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549376989] [2024-12-02 13:29:06,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:29:06,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:29:06,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:29:06,131 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:29:06,131 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:29:06,131 INFO L87 Difference]: Start difference. First operand 7499 states and 11216 transitions. Second operand has 4 states, 4 states have (on average 924.0) internal successors, (3696), 4 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:29:06,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:29:06,918 INFO L93 Difference]: Finished difference Result 13956 states and 20870 transitions. [2024-12-02 13:29:06,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:29:06,919 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 924.0) internal successors, (3696), 4 states have internal predecessors, (3696), 0 states have call successors, (0), 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 3696 [2024-12-02 13:29:06,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:29:06,925 INFO L225 Difference]: With dead ends: 13956 [2024-12-02 13:29:06,925 INFO L226 Difference]: Without dead ends: 7499 [2024-12-02 13:29:06,928 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:29:06,928 INFO L435 NwaCegarLoop]: 9460 mSDtfsCounter, 9215 mSDsluCounter, 9455 mSDsCounter, 0 mSdLazyCounter, 981 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9215 SdHoareTripleChecker+Valid, 18915 SdHoareTripleChecker+Invalid, 982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 981 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 13:29:06,928 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9215 Valid, 18915 Invalid, 982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 981 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 13:29:06,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7499 states. [2024-12-02 13:29:06,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7499 to 7499. [2024-12-02 13:29:06,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7499 states, 7498 states have (on average 1.4955988263536943) internal successors, (11214), 7498 states have internal predecessors, (11214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:29:06,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7499 states to 7499 states and 11214 transitions. [2024-12-02 13:29:06,982 INFO L78 Accepts]: Start accepts. Automaton has 7499 states and 11214 transitions. Word has length 3696 [2024-12-02 13:29:06,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:29:06,982 INFO L471 AbstractCegarLoop]: Abstraction has 7499 states and 11214 transitions. [2024-12-02 13:29:06,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 924.0) internal successors, (3696), 4 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:29:06,983 INFO L276 IsEmpty]: Start isEmpty. Operand 7499 states and 11214 transitions. [2024-12-02 13:29:07,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3698 [2024-12-02 13:29:07,035 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:29:07,036 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1] [2024-12-02 13:29:07,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-12-02 13:29:07,036 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:29:07,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:29:07,038 INFO L85 PathProgramCache]: Analyzing trace with hash -816100386, now seen corresponding path program 1 times [2024-12-02 13:29:07,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:29:07,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77314727] [2024-12-02 13:29:07,038 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:29:07,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:29:09,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:29:14,875 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:29:14,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:29:14,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77314727] [2024-12-02 13:29:14,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77314727] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:29:14,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:29:14,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:29:14,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192341263] [2024-12-02 13:29:14,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:29:14,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:29:14,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:29:14,879 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:29:14,880 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:29:14,880 INFO L87 Difference]: Start difference. First operand 7499 states and 11214 transitions. Second operand has 5 states, 5 states have (on average 739.4) internal successors, (3697), 5 states have internal predecessors, (3697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:29:15,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:29:15,068 INFO L93 Difference]: Finished difference Result 13957 states and 20868 transitions. [2024-12-02 13:29:15,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:29:15,070 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 739.4) internal successors, (3697), 5 states have internal predecessors, (3697), 0 states have call successors, (0), 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 3697 [2024-12-02 13:29:15,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:29:15,075 INFO L225 Difference]: With dead ends: 13957 [2024-12-02 13:29:15,075 INFO L226 Difference]: Without dead ends: 7500 [2024-12-02 13:29:15,079 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:29:15,080 INFO L435 NwaCegarLoop]: 9929 mSDtfsCounter, 9229 mSDsluCounter, 19853 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9229 SdHoareTripleChecker+Valid, 29782 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:29:15,080 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9229 Valid, 29782 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:29:15,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7500 states. [2024-12-02 13:29:15,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7500 to 7500. [2024-12-02 13:29:15,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7500 states, 7499 states have (on average 1.4955327376983598) internal successors, (11215), 7499 states have internal predecessors, (11215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:29:15,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7500 states to 7500 states and 11215 transitions. [2024-12-02 13:29:15,140 INFO L78 Accepts]: Start accepts. Automaton has 7500 states and 11215 transitions. Word has length 3697 [2024-12-02 13:29:15,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:29:15,140 INFO L471 AbstractCegarLoop]: Abstraction has 7500 states and 11215 transitions. [2024-12-02 13:29:15,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 739.4) internal successors, (3697), 5 states have internal predecessors, (3697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:29:15,141 INFO L276 IsEmpty]: Start isEmpty. Operand 7500 states and 11215 transitions. [2024-12-02 13:29:15,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3698 [2024-12-02 13:29:15,197 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:29:15,198 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1] [2024-12-02 13:29:15,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-12-02 13:29:15,198 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:29:15,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:29:15,199 INFO L85 PathProgramCache]: Analyzing trace with hash 425541534, now seen corresponding path program 1 times [2024-12-02 13:29:15,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:29:15,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026516388] [2024-12-02 13:29:15,200 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:29:15,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:29:18,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:29:23,033 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:29:23,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:29:23,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026516388] [2024-12-02 13:29:23,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026516388] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:29:23,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:29:23,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:29:23,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725603446] [2024-12-02 13:29:23,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:29:23,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:29:23,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:29:23,038 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:29:23,038 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:29:23,039 INFO L87 Difference]: Start difference. First operand 7500 states and 11215 transitions. Second operand has 5 states, 5 states have (on average 739.4) internal successors, (3697), 5 states have internal predecessors, (3697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:29:23,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:29:23,550 INFO L93 Difference]: Finished difference Result 13958 states and 20868 transitions. [2024-12-02 13:29:23,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:29:23,551 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 739.4) internal successors, (3697), 5 states have internal predecessors, (3697), 0 states have call successors, (0), 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 3697 [2024-12-02 13:29:23,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:29:23,556 INFO L225 Difference]: With dead ends: 13958 [2024-12-02 13:29:23,556 INFO L226 Difference]: Without dead ends: 7500 [2024-12-02 13:29:23,559 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:29:23,559 INFO L435 NwaCegarLoop]: 9632 mSDtfsCounter, 18889 mSDsluCounter, 9629 mSDsCounter, 0 mSdLazyCounter, 632 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18889 SdHoareTripleChecker+Valid, 19261 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 13:29:23,559 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18889 Valid, 19261 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 632 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 13:29:23,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7500 states. [2024-12-02 13:29:23,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7500 to 7500. [2024-12-02 13:29:23,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7500 states, 7499 states have (on average 1.495399386584878) internal successors, (11214), 7499 states have internal predecessors, (11214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:29:23,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7500 states to 7500 states and 11214 transitions. [2024-12-02 13:29:23,615 INFO L78 Accepts]: Start accepts. Automaton has 7500 states and 11214 transitions. Word has length 3697 [2024-12-02 13:29:23,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:29:23,616 INFO L471 AbstractCegarLoop]: Abstraction has 7500 states and 11214 transitions. [2024-12-02 13:29:23,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 739.4) internal successors, (3697), 5 states have internal predecessors, (3697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:29:23,616 INFO L276 IsEmpty]: Start isEmpty. Operand 7500 states and 11214 transitions. [2024-12-02 13:29:23,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3699 [2024-12-02 13:29:23,669 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:29:23,670 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1] [2024-12-02 13:29:23,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-12-02 13:29:23,671 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:29:23,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:29:23,672 INFO L85 PathProgramCache]: Analyzing trace with hash -990556210, now seen corresponding path program 1 times [2024-12-02 13:29:23,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:29:23,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342258263] [2024-12-02 13:29:23,673 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:29:23,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:29:26,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:29:32,185 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:29:32,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:29:32,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342258263] [2024-12-02 13:29:32,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342258263] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:29:32,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:29:32,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:29:32,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807789382] [2024-12-02 13:29:32,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:29:32,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:29:32,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:29:32,189 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:29:32,189 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:29:32,190 INFO L87 Difference]: Start difference. First operand 7500 states and 11214 transitions. Second operand has 4 states, 4 states have (on average 924.5) internal successors, (3698), 4 states have internal predecessors, (3698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:29:32,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:29:32,904 INFO L93 Difference]: Finished difference Result 13958 states and 20866 transitions. [2024-12-02 13:29:32,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:29:32,905 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 924.5) internal successors, (3698), 4 states have internal predecessors, (3698), 0 states have call successors, (0), 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 3698 [2024-12-02 13:29:32,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:29:32,910 INFO L225 Difference]: With dead ends: 13958 [2024-12-02 13:29:32,910 INFO L226 Difference]: Without dead ends: 7500 [2024-12-02 13:29:32,914 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:29:32,914 INFO L435 NwaCegarLoop]: 9459 mSDtfsCounter, 9168 mSDsluCounter, 9453 mSDsCounter, 0 mSdLazyCounter, 977 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9168 SdHoareTripleChecker+Valid, 18912 SdHoareTripleChecker+Invalid, 978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 977 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 13:29:32,914 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9168 Valid, 18912 Invalid, 978 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 977 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 13:29:32,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7500 states. [2024-12-02 13:29:32,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7500 to 7500. [2024-12-02 13:29:32,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7500 states, 7499 states have (on average 1.4951326843579145) internal successors, (11212), 7499 states have internal predecessors, (11212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:29:32,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7500 states to 7500 states and 11212 transitions. [2024-12-02 13:29:32,968 INFO L78 Accepts]: Start accepts. Automaton has 7500 states and 11212 transitions. Word has length 3698 [2024-12-02 13:29:32,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:29:32,969 INFO L471 AbstractCegarLoop]: Abstraction has 7500 states and 11212 transitions. [2024-12-02 13:29:32,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 924.5) internal successors, (3698), 4 states have internal predecessors, (3698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:29:32,969 INFO L276 IsEmpty]: Start isEmpty. Operand 7500 states and 11212 transitions. [2024-12-02 13:29:33,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3700 [2024-12-02 13:29:33,070 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:29:33,071 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:29:33,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-12-02 13:29:33,071 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:29:33,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:29:33,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1907510806, now seen corresponding path program 1 times [2024-12-02 13:29:33,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:29:33,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017223417] [2024-12-02 13:29:33,074 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:29:33,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:29:35,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:29:41,397 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:29:41,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:29:41,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017223417] [2024-12-02 13:29:41,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017223417] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:29:41,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:29:41,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:29:41,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600119428] [2024-12-02 13:29:41,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:29:41,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:29:41,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:29:41,402 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:29:41,402 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:29:41,403 INFO L87 Difference]: Start difference. First operand 7500 states and 11212 transitions. Second operand has 5 states, 5 states have (on average 739.8) internal successors, (3699), 5 states have internal predecessors, (3699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:29:41,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:29:41,715 INFO L93 Difference]: Finished difference Result 13959 states and 20864 transitions. [2024-12-02 13:29:41,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:29:41,716 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 739.8) internal successors, (3699), 5 states have internal predecessors, (3699), 0 states have call successors, (0), 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 3699 [2024-12-02 13:29:41,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:29:41,721 INFO L225 Difference]: With dead ends: 13959 [2024-12-02 13:29:41,721 INFO L226 Difference]: Without dead ends: 7501 [2024-12-02 13:29:41,724 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:29:41,724 INFO L435 NwaCegarLoop]: 9928 mSDtfsCounter, 9176 mSDsluCounter, 19851 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9176 SdHoareTripleChecker+Valid, 29779 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:29:41,724 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9176 Valid, 29779 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:29:41,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7501 states. [2024-12-02 13:29:41,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7501 to 7501. [2024-12-02 13:29:41,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7501 states, 7500 states have (on average 1.4950666666666668) internal successors, (11213), 7500 states have internal predecessors, (11213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:29:41,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7501 states to 7501 states and 11213 transitions. [2024-12-02 13:29:41,776 INFO L78 Accepts]: Start accepts. Automaton has 7501 states and 11213 transitions. Word has length 3699 [2024-12-02 13:29:41,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:29:41,778 INFO L471 AbstractCegarLoop]: Abstraction has 7501 states and 11213 transitions. [2024-12-02 13:29:41,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 739.8) internal successors, (3699), 5 states have internal predecessors, (3699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:29:41,778 INFO L276 IsEmpty]: Start isEmpty. Operand 7501 states and 11213 transitions. [2024-12-02 13:29:41,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3700 [2024-12-02 13:29:41,913 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:29:41,914 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:29:41,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-12-02 13:29:41,914 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:29:41,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:29:41,915 INFO L85 PathProgramCache]: Analyzing trace with hash 72532438, now seen corresponding path program 1 times [2024-12-02 13:29:41,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:29:41,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288355222] [2024-12-02 13:29:41,916 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:29:41,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:29:44,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:29:50,446 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:29:50,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:29:50,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288355222] [2024-12-02 13:29:50,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288355222] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:29:50,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:29:50,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:29:50,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965409590] [2024-12-02 13:29:50,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:29:50,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:29:50,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:29:50,452 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:29:50,452 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:29:50,452 INFO L87 Difference]: Start difference. First operand 7501 states and 11213 transitions. Second operand has 5 states, 5 states have (on average 739.8) internal successors, (3699), 5 states have internal predecessors, (3699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:29:50,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:29:50,999 INFO L93 Difference]: Finished difference Result 13960 states and 20864 transitions. [2024-12-02 13:29:50,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:29:51,000 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 739.8) internal successors, (3699), 5 states have internal predecessors, (3699), 0 states have call successors, (0), 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 3699 [2024-12-02 13:29:51,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:29:51,005 INFO L225 Difference]: With dead ends: 13960 [2024-12-02 13:29:51,005 INFO L226 Difference]: Without dead ends: 7501 [2024-12-02 13:29:51,008 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:29:51,008 INFO L435 NwaCegarLoop]: 9628 mSDtfsCounter, 9682 mSDsluCounter, 9626 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9682 SdHoareTripleChecker+Valid, 19254 SdHoareTripleChecker+Invalid, 635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 13:29:51,009 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9682 Valid, 19254 Invalid, 635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 634 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 13:29:51,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7501 states. [2024-12-02 13:29:51,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7501 to 7501. [2024-12-02 13:29:51,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7501 states, 7500 states have (on average 1.4949333333333332) internal successors, (11212), 7500 states have internal predecessors, (11212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:29:51,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7501 states to 7501 states and 11212 transitions. [2024-12-02 13:29:51,061 INFO L78 Accepts]: Start accepts. Automaton has 7501 states and 11212 transitions. Word has length 3699 [2024-12-02 13:29:51,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:29:51,061 INFO L471 AbstractCegarLoop]: Abstraction has 7501 states and 11212 transitions. [2024-12-02 13:29:51,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 739.8) internal successors, (3699), 5 states have internal predecessors, (3699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:29:51,062 INFO L276 IsEmpty]: Start isEmpty. Operand 7501 states and 11212 transitions. [2024-12-02 13:29:51,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3701 [2024-12-02 13:29:51,253 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:29:51,253 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:29:51,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-12-02 13:29:51,254 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:29:51,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:29:51,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1912415582, now seen corresponding path program 1 times [2024-12-02 13:29:51,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:29:51,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755476299] [2024-12-02 13:29:51,255 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:29:51,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:29:53,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:29:59,880 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:29:59,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:29:59,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755476299] [2024-12-02 13:29:59,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755476299] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:29:59,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:29:59,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:29:59,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9446960] [2024-12-02 13:29:59,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:29:59,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:29:59,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:29:59,883 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:29:59,883 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:29:59,884 INFO L87 Difference]: Start difference. First operand 7501 states and 11212 transitions. Second operand has 4 states, 4 states have (on average 925.0) internal successors, (3700), 4 states have internal predecessors, (3700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:30:00,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:30:00,651 INFO L93 Difference]: Finished difference Result 13960 states and 20862 transitions. [2024-12-02 13:30:00,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:30:00,652 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 925.0) internal successors, (3700), 4 states have internal predecessors, (3700), 0 states have call successors, (0), 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 3700 [2024-12-02 13:30:00,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:30:00,657 INFO L225 Difference]: With dead ends: 13960 [2024-12-02 13:30:00,657 INFO L226 Difference]: Without dead ends: 7501 [2024-12-02 13:30:00,660 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:30:00,660 INFO L435 NwaCegarLoop]: 9458 mSDtfsCounter, 9123 mSDsluCounter, 9453 mSDsCounter, 0 mSdLazyCounter, 973 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9123 SdHoareTripleChecker+Valid, 18911 SdHoareTripleChecker+Invalid, 974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 973 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 13:30:00,661 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9123 Valid, 18911 Invalid, 974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 973 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 13:30:00,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7501 states. [2024-12-02 13:30:00,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7501 to 7501. [2024-12-02 13:30:00,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7501 states, 7500 states have (on average 1.4946666666666666) internal successors, (11210), 7500 states have internal predecessors, (11210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:30:00,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7501 states to 7501 states and 11210 transitions. [2024-12-02 13:30:00,712 INFO L78 Accepts]: Start accepts. Automaton has 7501 states and 11210 transitions. Word has length 3700 [2024-12-02 13:30:00,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:30:00,713 INFO L471 AbstractCegarLoop]: Abstraction has 7501 states and 11210 transitions. [2024-12-02 13:30:00,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 925.0) internal successors, (3700), 4 states have internal predecessors, (3700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:30:00,713 INFO L276 IsEmpty]: Start isEmpty. Operand 7501 states and 11210 transitions. [2024-12-02 13:30:00,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3702 [2024-12-02 13:30:00,766 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:30:00,767 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:30:00,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-12-02 13:30:00,767 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:30:00,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:30:00,768 INFO L85 PathProgramCache]: Analyzing trace with hash -700939826, now seen corresponding path program 1 times [2024-12-02 13:30:00,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:30:00,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956500242] [2024-12-02 13:30:00,768 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:30:00,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:30:03,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:30:08,302 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:30:08,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:30:08,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956500242] [2024-12-02 13:30:08,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956500242] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:30:08,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:30:08,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:30:08,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301948150] [2024-12-02 13:30:08,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:30:08,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:30:08,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:30:08,305 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:30:08,305 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:30:08,306 INFO L87 Difference]: Start difference. First operand 7501 states and 11210 transitions. Second operand has 5 states, 5 states have (on average 740.2) internal successors, (3701), 5 states have internal predecessors, (3701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:30:08,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:30:08,436 INFO L93 Difference]: Finished difference Result 13961 states and 20860 transitions. [2024-12-02 13:30:08,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:30:08,437 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 740.2) internal successors, (3701), 5 states have internal predecessors, (3701), 0 states have call successors, (0), 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 3701 [2024-12-02 13:30:08,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:30:08,442 INFO L225 Difference]: With dead ends: 13961 [2024-12-02 13:30:08,442 INFO L226 Difference]: Without dead ends: 7502 [2024-12-02 13:30:08,445 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:30:08,445 INFO L435 NwaCegarLoop]: 9923 mSDtfsCounter, 9137 mSDsluCounter, 19841 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9137 SdHoareTripleChecker+Valid, 29764 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:30:08,446 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9137 Valid, 29764 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:30:08,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7502 states. [2024-12-02 13:30:08,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7502 to 7502. [2024-12-02 13:30:08,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7502 states, 7501 states have (on average 1.4946007199040128) internal successors, (11211), 7501 states have internal predecessors, (11211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:30:08,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7502 states to 7502 states and 11211 transitions. [2024-12-02 13:30:08,498 INFO L78 Accepts]: Start accepts. Automaton has 7502 states and 11211 transitions. Word has length 3701 [2024-12-02 13:30:08,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:30:08,498 INFO L471 AbstractCegarLoop]: Abstraction has 7502 states and 11211 transitions. [2024-12-02 13:30:08,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 740.2) internal successors, (3701), 5 states have internal predecessors, (3701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:30:08,499 INFO L276 IsEmpty]: Start isEmpty. Operand 7502 states and 11211 transitions. [2024-12-02 13:30:08,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3702 [2024-12-02 13:30:08,568 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:30:08,568 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:30:08,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-12-02 13:30:08,568 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:30:08,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:30:08,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1100880498, now seen corresponding path program 1 times [2024-12-02 13:30:08,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:30:08,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900581813] [2024-12-02 13:30:08,570 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:30:08,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:30:11,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:30:15,977 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:30:15,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:30:15,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900581813] [2024-12-02 13:30:15,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900581813] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:30:15,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:30:15,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:30:15,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434297697] [2024-12-02 13:30:15,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:30:15,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:30:15,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:30:15,981 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:30:15,981 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:30:15,982 INFO L87 Difference]: Start difference. First operand 7502 states and 11211 transitions. Second operand has 5 states, 5 states have (on average 740.2) internal successors, (3701), 5 states have internal predecessors, (3701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:30:16,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:30:16,447 INFO L93 Difference]: Finished difference Result 13962 states and 20860 transitions. [2024-12-02 13:30:16,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:30:16,448 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 740.2) internal successors, (3701), 5 states have internal predecessors, (3701), 0 states have call successors, (0), 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 3701 [2024-12-02 13:30:16,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:30:16,453 INFO L225 Difference]: With dead ends: 13962 [2024-12-02 13:30:16,453 INFO L226 Difference]: Without dead ends: 7502 [2024-12-02 13:30:16,456 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:30:16,456 INFO L435 NwaCegarLoop]: 9628 mSDtfsCounter, 9665 mSDsluCounter, 9626 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9665 SdHoareTripleChecker+Valid, 19254 SdHoareTripleChecker+Invalid, 629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 13:30:16,456 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9665 Valid, 19254 Invalid, 629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 628 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 13:30:16,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7502 states. [2024-12-02 13:30:16,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7502 to 7502. [2024-12-02 13:30:16,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7502 states, 7501 states have (on average 1.4944674043460873) internal successors, (11210), 7501 states have internal predecessors, (11210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:30:16,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7502 states to 7502 states and 11210 transitions. [2024-12-02 13:30:16,508 INFO L78 Accepts]: Start accepts. Automaton has 7502 states and 11210 transitions. Word has length 3701 [2024-12-02 13:30:16,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:30:16,509 INFO L471 AbstractCegarLoop]: Abstraction has 7502 states and 11210 transitions. [2024-12-02 13:30:16,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 740.2) internal successors, (3701), 5 states have internal predecessors, (3701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:30:16,509 INFO L276 IsEmpty]: Start isEmpty. Operand 7502 states and 11210 transitions. [2024-12-02 13:30:16,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3703 [2024-12-02 13:30:16,562 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:30:16,562 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:30:16,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-12-02 13:30:16,563 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:30:16,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:30:16,563 INFO L85 PathProgramCache]: Analyzing trace with hash 131162627, now seen corresponding path program 1 times [2024-12-02 13:30:16,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:30:16,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115755672] [2024-12-02 13:30:16,564 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:30:16,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:30:18,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:30:24,754 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:30:24,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:30:24,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115755672] [2024-12-02 13:30:24,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115755672] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:30:24,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:30:24,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:30:24,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941060781] [2024-12-02 13:30:24,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:30:24,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:30:24,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:30:24,757 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:30:24,758 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:30:24,758 INFO L87 Difference]: Start difference. First operand 7502 states and 11210 transitions. Second operand has 4 states, 4 states have (on average 925.5) internal successors, (3702), 4 states have internal predecessors, (3702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:30:25,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:30:25,507 INFO L93 Difference]: Finished difference Result 13962 states and 20858 transitions. [2024-12-02 13:30:25,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:30:25,508 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 925.5) internal successors, (3702), 4 states have internal predecessors, (3702), 0 states have call successors, (0), 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 3702 [2024-12-02 13:30:25,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:30:25,513 INFO L225 Difference]: With dead ends: 13962 [2024-12-02 13:30:25,513 INFO L226 Difference]: Without dead ends: 7502 [2024-12-02 13:30:25,516 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:30:25,516 INFO L435 NwaCegarLoop]: 9457 mSDtfsCounter, 9106 mSDsluCounter, 9452 mSDsCounter, 0 mSdLazyCounter, 969 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9106 SdHoareTripleChecker+Valid, 18909 SdHoareTripleChecker+Invalid, 970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 13:30:25,516 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9106 Valid, 18909 Invalid, 970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 969 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 13:30:25,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7502 states. [2024-12-02 13:30:25,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7502 to 7502. [2024-12-02 13:30:25,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7502 states, 7501 states have (on average 1.494200773230236) internal successors, (11208), 7501 states have internal predecessors, (11208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:30:25,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7502 states to 7502 states and 11208 transitions. [2024-12-02 13:30:25,568 INFO L78 Accepts]: Start accepts. Automaton has 7502 states and 11208 transitions. Word has length 3702 [2024-12-02 13:30:25,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:30:25,569 INFO L471 AbstractCegarLoop]: Abstraction has 7502 states and 11208 transitions. [2024-12-02 13:30:25,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 925.5) internal successors, (3702), 4 states have internal predecessors, (3702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:30:25,570 INFO L276 IsEmpty]: Start isEmpty. Operand 7502 states and 11208 transitions. [2024-12-02 13:30:25,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3704 [2024-12-02 13:30:25,622 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:30:25,623 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:30:25,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-12-02 13:30:25,623 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:30:25,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:30:25,624 INFO L85 PathProgramCache]: Analyzing trace with hash -840954202, now seen corresponding path program 1 times [2024-12-02 13:30:25,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:30:25,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990063910] [2024-12-02 13:30:25,624 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:30:25,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:30:28,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:30:33,771 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:30:33,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:30:33,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990063910] [2024-12-02 13:30:33,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990063910] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:30:33,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:30:33,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:30:33,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661191276] [2024-12-02 13:30:33,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:30:33,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:30:33,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:30:33,774 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:30:33,774 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:30:33,775 INFO L87 Difference]: Start difference. First operand 7502 states and 11208 transitions. Second operand has 5 states, 5 states have (on average 740.6) internal successors, (3703), 5 states have internal predecessors, (3703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:30:33,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:30:33,924 INFO L93 Difference]: Finished difference Result 13963 states and 20856 transitions. [2024-12-02 13:30:33,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:30:33,925 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 740.6) internal successors, (3703), 5 states have internal predecessors, (3703), 0 states have call successors, (0), 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 3703 [2024-12-02 13:30:33,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:30:33,930 INFO L225 Difference]: With dead ends: 13963 [2024-12-02 13:30:33,930 INFO L226 Difference]: Without dead ends: 7503 [2024-12-02 13:30:33,933 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:30:33,933 INFO L435 NwaCegarLoop]: 9922 mSDtfsCounter, 9120 mSDsluCounter, 19839 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9120 SdHoareTripleChecker+Valid, 29761 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:30:33,933 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9120 Valid, 29761 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:30:33,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7503 states. [2024-12-02 13:30:33,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7503 to 7503. [2024-12-02 13:30:33,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7503 states, 7502 states have (on average 1.4941348973607038) internal successors, (11209), 7502 states have internal predecessors, (11209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:30:33,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7503 states to 7503 states and 11209 transitions. [2024-12-02 13:30:33,986 INFO L78 Accepts]: Start accepts. Automaton has 7503 states and 11209 transitions. Word has length 3703 [2024-12-02 13:30:33,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:30:33,986 INFO L471 AbstractCegarLoop]: Abstraction has 7503 states and 11209 transitions. [2024-12-02 13:30:33,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 740.6) internal successors, (3703), 5 states have internal predecessors, (3703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:30:33,987 INFO L276 IsEmpty]: Start isEmpty. Operand 7503 states and 11209 transitions. [2024-12-02 13:30:34,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3704 [2024-12-02 13:30:34,040 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:30:34,041 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:30:34,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-12-02 13:30:34,041 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:30:34,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:30:34,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1009848934, now seen corresponding path program 1 times [2024-12-02 13:30:34,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:30:34,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906524524] [2024-12-02 13:30:34,042 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:30:34,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:30:36,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:30:41,954 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:30:41,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:30:41,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906524524] [2024-12-02 13:30:41,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906524524] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:30:41,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:30:41,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:30:41,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888292686] [2024-12-02 13:30:41,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:30:41,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:30:41,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:30:41,957 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:30:41,957 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:30:41,958 INFO L87 Difference]: Start difference. First operand 7503 states and 11209 transitions. Second operand has 5 states, 5 states have (on average 740.6) internal successors, (3703), 5 states have internal predecessors, (3703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:30:42,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:30:42,427 INFO L93 Difference]: Finished difference Result 13964 states and 20856 transitions. [2024-12-02 13:30:42,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:30:42,428 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 740.6) internal successors, (3703), 5 states have internal predecessors, (3703), 0 states have call successors, (0), 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 3703 [2024-12-02 13:30:42,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:30:42,433 INFO L225 Difference]: With dead ends: 13964 [2024-12-02 13:30:42,433 INFO L226 Difference]: Without dead ends: 7503 [2024-12-02 13:30:42,436 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:30:42,436 INFO L435 NwaCegarLoop]: 9624 mSDtfsCounter, 9650 mSDsluCounter, 9622 mSDsCounter, 0 mSdLazyCounter, 630 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9650 SdHoareTripleChecker+Valid, 19246 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 13:30:42,436 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9650 Valid, 19246 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 630 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 13:30:42,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7503 states. [2024-12-02 13:30:42,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7503 to 7503. [2024-12-02 13:30:42,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7503 states, 7502 states have (on average 1.494001599573447) internal successors, (11208), 7502 states have internal predecessors, (11208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:30:42,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7503 states to 7503 states and 11208 transitions. [2024-12-02 13:30:42,499 INFO L78 Accepts]: Start accepts. Automaton has 7503 states and 11208 transitions. Word has length 3703 [2024-12-02 13:30:42,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:30:42,500 INFO L471 AbstractCegarLoop]: Abstraction has 7503 states and 11208 transitions. [2024-12-02 13:30:42,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 740.6) internal successors, (3703), 5 states have internal predecessors, (3703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:30:42,500 INFO L276 IsEmpty]: Start isEmpty. Operand 7503 states and 11208 transitions. [2024-12-02 13:30:42,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3705 [2024-12-02 13:30:42,633 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:30:42,634 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:30:42,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-12-02 13:30:42,634 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:30:42,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:30:42,635 INFO L85 PathProgramCache]: Analyzing trace with hash -116397557, now seen corresponding path program 1 times [2024-12-02 13:30:42,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:30:42,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127086945] [2024-12-02 13:30:42,636 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:30:42,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:30:45,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:30:50,307 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:30:50,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:30:50,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127086945] [2024-12-02 13:30:50,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127086945] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:30:50,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:30:50,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:30:50,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571017993] [2024-12-02 13:30:50,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:30:50,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:30:50,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:30:50,312 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:30:50,312 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:30:50,312 INFO L87 Difference]: Start difference. First operand 7503 states and 11208 transitions. Second operand has 4 states, 4 states have (on average 926.0) internal successors, (3704), 4 states have internal predecessors, (3704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:30:51,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:30:51,131 INFO L93 Difference]: Finished difference Result 13964 states and 20854 transitions. [2024-12-02 13:30:51,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:30:51,132 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 926.0) internal successors, (3704), 4 states have internal predecessors, (3704), 0 states have call successors, (0), 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 3704 [2024-12-02 13:30:51,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:30:51,136 INFO L225 Difference]: With dead ends: 13964 [2024-12-02 13:30:51,136 INFO L226 Difference]: Without dead ends: 7503 [2024-12-02 13:30:51,137 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:30:51,138 INFO L435 NwaCegarLoop]: 9456 mSDtfsCounter, 9091 mSDsluCounter, 9451 mSDsCounter, 0 mSdLazyCounter, 965 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9091 SdHoareTripleChecker+Valid, 18907 SdHoareTripleChecker+Invalid, 966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 965 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 13:30:51,138 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9091 Valid, 18907 Invalid, 966 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 965 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 13:30:51,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7503 states. [2024-12-02 13:30:51,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7503 to 7503. [2024-12-02 13:30:51,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7503 states, 7502 states have (on average 1.4937350039989337) internal successors, (11206), 7502 states have internal predecessors, (11206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:30:51,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7503 states to 7503 states and 11206 transitions. [2024-12-02 13:30:51,188 INFO L78 Accepts]: Start accepts. Automaton has 7503 states and 11206 transitions. Word has length 3704 [2024-12-02 13:30:51,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:30:51,188 INFO L471 AbstractCegarLoop]: Abstraction has 7503 states and 11206 transitions. [2024-12-02 13:30:51,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 926.0) internal successors, (3704), 4 states have internal predecessors, (3704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:30:51,189 INFO L276 IsEmpty]: Start isEmpty. Operand 7503 states and 11206 transitions. [2024-12-02 13:30:51,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3706 [2024-12-02 13:30:51,241 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:30:51,241 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:30:51,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-12-02 13:30:51,241 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:30:51,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:30:51,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1252710270, now seen corresponding path program 1 times [2024-12-02 13:30:51,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:30:51,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955496770] [2024-12-02 13:30:51,242 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:30:51,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:30:53,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:30:58,167 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:30:58,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:30:58,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955496770] [2024-12-02 13:30:58,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955496770] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:30:58,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:30:58,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:30:58,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356271181] [2024-12-02 13:30:58,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:30:58,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:30:58,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:30:58,170 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:30:58,170 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:30:58,171 INFO L87 Difference]: Start difference. First operand 7503 states and 11206 transitions. Second operand has 5 states, 5 states have (on average 741.0) internal successors, (3705), 5 states have internal predecessors, (3705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:30:58,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:30:58,305 INFO L93 Difference]: Finished difference Result 13965 states and 20852 transitions. [2024-12-02 13:30:58,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:30:58,306 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 741.0) internal successors, (3705), 5 states have internal predecessors, (3705), 0 states have call successors, (0), 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 3705 [2024-12-02 13:30:58,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:30:58,312 INFO L225 Difference]: With dead ends: 13965 [2024-12-02 13:30:58,312 INFO L226 Difference]: Without dead ends: 7504 [2024-12-02 13:30:58,315 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:30:58,315 INFO L435 NwaCegarLoop]: 9917 mSDtfsCounter, 9105 mSDsluCounter, 19829 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9105 SdHoareTripleChecker+Valid, 29746 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:30:58,315 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9105 Valid, 29746 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:30:58,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7504 states. [2024-12-02 13:30:58,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7504 to 7504. [2024-12-02 13:30:58,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7504 states, 7503 states have (on average 1.4936691989870718) internal successors, (11207), 7503 states have internal predecessors, (11207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:30:58,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7504 states to 7504 states and 11207 transitions. [2024-12-02 13:30:58,367 INFO L78 Accepts]: Start accepts. Automaton has 7504 states and 11207 transitions. Word has length 3705 [2024-12-02 13:30:58,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:30:58,368 INFO L471 AbstractCegarLoop]: Abstraction has 7504 states and 11207 transitions. [2024-12-02 13:30:58,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 741.0) internal successors, (3705), 5 states have internal predecessors, (3705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:30:58,368 INFO L276 IsEmpty]: Start isEmpty. Operand 7504 states and 11207 transitions. [2024-12-02 13:30:58,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3706 [2024-12-02 13:30:58,421 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:30:58,421 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:30:58,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-12-02 13:30:58,422 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:30:58,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:30:58,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1845070654, now seen corresponding path program 1 times [2024-12-02 13:30:58,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:30:58,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418456930] [2024-12-02 13:30:58,424 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:30:58,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:31:01,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:31:06,248 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:31:06,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:31:06,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418456930] [2024-12-02 13:31:06,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418456930] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:31:06,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:31:06,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:31:06,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507476029] [2024-12-02 13:31:06,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:31:06,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:31:06,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:31:06,252 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:31:06,252 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:31:06,252 INFO L87 Difference]: Start difference. First operand 7504 states and 11207 transitions. Second operand has 5 states, 5 states have (on average 741.0) internal successors, (3705), 5 states have internal predecessors, (3705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:31:06,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:31:06,779 INFO L93 Difference]: Finished difference Result 13966 states and 20852 transitions. [2024-12-02 13:31:06,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:31:06,780 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 741.0) internal successors, (3705), 5 states have internal predecessors, (3705), 0 states have call successors, (0), 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 3705 [2024-12-02 13:31:06,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:31:06,785 INFO L225 Difference]: With dead ends: 13966 [2024-12-02 13:31:06,785 INFO L226 Difference]: Without dead ends: 7504 [2024-12-02 13:31:06,788 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:31:06,788 INFO L435 NwaCegarLoop]: 9624 mSDtfsCounter, 9587 mSDsluCounter, 9622 mSDsCounter, 0 mSdLazyCounter, 624 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9587 SdHoareTripleChecker+Valid, 19246 SdHoareTripleChecker+Invalid, 625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 13:31:06,789 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9587 Valid, 19246 Invalid, 625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 624 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 13:31:06,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7504 states. [2024-12-02 13:31:06,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7504 to 7504. [2024-12-02 13:31:06,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7504 states, 7503 states have (on average 1.4935359189657471) internal successors, (11206), 7503 states have internal predecessors, (11206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:31:06,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7504 states to 7504 states and 11206 transitions. [2024-12-02 13:31:06,842 INFO L78 Accepts]: Start accepts. Automaton has 7504 states and 11206 transitions. Word has length 3705 [2024-12-02 13:31:06,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:31:06,842 INFO L471 AbstractCegarLoop]: Abstraction has 7504 states and 11206 transitions. [2024-12-02 13:31:06,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 741.0) internal successors, (3705), 5 states have internal predecessors, (3705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:31:06,843 INFO L276 IsEmpty]: Start isEmpty. Operand 7504 states and 11206 transitions. [2024-12-02 13:31:06,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3707 [2024-12-02 13:31:06,950 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:31:06,950 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:31:06,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-12-02 13:31:06,951 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:31:06,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:31:06,953 INFO L85 PathProgramCache]: Analyzing trace with hash 2026832176, now seen corresponding path program 1 times [2024-12-02 13:31:06,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:31:06,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129987592] [2024-12-02 13:31:06,953 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:31:06,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:31:09,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:31:15,954 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:31:15,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:31:15,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129987592] [2024-12-02 13:31:15,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129987592] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:31:15,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:31:15,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:31:15,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590224126] [2024-12-02 13:31:15,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:31:15,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:31:15,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:31:15,958 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:31:15,958 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:31:15,958 INFO L87 Difference]: Start difference. First operand 7504 states and 11206 transitions. Second operand has 4 states, 4 states have (on average 926.5) internal successors, (3706), 4 states have internal predecessors, (3706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:31:16,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:31:16,681 INFO L93 Difference]: Finished difference Result 13966 states and 20850 transitions. [2024-12-02 13:31:16,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:31:16,682 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 926.5) internal successors, (3706), 4 states have internal predecessors, (3706), 0 states have call successors, (0), 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 3706 [2024-12-02 13:31:16,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:31:16,687 INFO L225 Difference]: With dead ends: 13966 [2024-12-02 13:31:16,687 INFO L226 Difference]: Without dead ends: 7504 [2024-12-02 13:31:16,690 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:31:16,690 INFO L435 NwaCegarLoop]: 9455 mSDtfsCounter, 9028 mSDsluCounter, 9450 mSDsCounter, 0 mSdLazyCounter, 961 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9028 SdHoareTripleChecker+Valid, 18905 SdHoareTripleChecker+Invalid, 962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 961 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 13:31:16,690 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9028 Valid, 18905 Invalid, 962 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 961 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 13:31:16,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7504 states. [2024-12-02 13:31:16,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7504 to 7504. [2024-12-02 13:31:16,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7504 states, 7503 states have (on average 1.4932693589230974) internal successors, (11204), 7503 states have internal predecessors, (11204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:31:16,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7504 states to 7504 states and 11204 transitions. [2024-12-02 13:31:16,742 INFO L78 Accepts]: Start accepts. Automaton has 7504 states and 11204 transitions. Word has length 3706 [2024-12-02 13:31:16,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:31:16,743 INFO L471 AbstractCegarLoop]: Abstraction has 7504 states and 11204 transitions. [2024-12-02 13:31:16,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 926.5) internal successors, (3706), 4 states have internal predecessors, (3706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:31:16,743 INFO L276 IsEmpty]: Start isEmpty. Operand 7504 states and 11204 transitions. [2024-12-02 13:31:16,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3708 [2024-12-02 13:31:16,796 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:31:16,796 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:31:16,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-12-02 13:31:16,796 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:31:16,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:31:16,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1422303222, now seen corresponding path program 1 times [2024-12-02 13:31:16,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:31:16,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027589165] [2024-12-02 13:31:16,797 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:31:16,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:31:19,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:31:24,078 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:31:24,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:31:24,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027589165] [2024-12-02 13:31:24,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027589165] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:31:24,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:31:24,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:31:24,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473365151] [2024-12-02 13:31:24,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:31:24,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:31:24,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:31:24,081 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:31:24,081 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:31:24,081 INFO L87 Difference]: Start difference. First operand 7504 states and 11204 transitions. Second operand has 5 states, 5 states have (on average 741.4) internal successors, (3707), 5 states have internal predecessors, (3707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:31:24,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:31:24,215 INFO L93 Difference]: Finished difference Result 13967 states and 20848 transitions. [2024-12-02 13:31:24,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:31:24,216 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 741.4) internal successors, (3707), 5 states have internal predecessors, (3707), 0 states have call successors, (0), 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 3707 [2024-12-02 13:31:24,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:31:24,222 INFO L225 Difference]: With dead ends: 13967 [2024-12-02 13:31:24,222 INFO L226 Difference]: Without dead ends: 7505 [2024-12-02 13:31:24,225 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:31:24,225 INFO L435 NwaCegarLoop]: 9916 mSDtfsCounter, 9042 mSDsluCounter, 19827 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9042 SdHoareTripleChecker+Valid, 29743 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:31:24,225 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9042 Valid, 29743 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:31:24,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7505 states. [2024-12-02 13:31:24,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7505 to 7505. [2024-12-02 13:31:24,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7505 states, 7504 states have (on average 1.4932036247334755) internal successors, (11205), 7504 states have internal predecessors, (11205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:31:24,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7505 states to 7505 states and 11205 transitions. [2024-12-02 13:31:24,280 INFO L78 Accepts]: Start accepts. Automaton has 7505 states and 11205 transitions. Word has length 3707 [2024-12-02 13:31:24,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:31:24,281 INFO L471 AbstractCegarLoop]: Abstraction has 7505 states and 11205 transitions. [2024-12-02 13:31:24,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 741.4) internal successors, (3707), 5 states have internal predecessors, (3707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:31:24,282 INFO L276 IsEmpty]: Start isEmpty. Operand 7505 states and 11205 transitions. [2024-12-02 13:31:24,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3708 [2024-12-02 13:31:24,427 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:31:24,428 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:31:24,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-12-02 13:31:24,428 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:31:24,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:31:24,429 INFO L85 PathProgramCache]: Analyzing trace with hash 112034742, now seen corresponding path program 1 times [2024-12-02 13:31:24,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:31:24,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901356127] [2024-12-02 13:31:24,429 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:31:24,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:31:27,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:31:32,379 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:31:32,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:31:32,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901356127] [2024-12-02 13:31:32,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901356127] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:31:32,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:31:32,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:31:32,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807543355] [2024-12-02 13:31:32,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:31:32,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:31:32,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:31:32,383 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:31:32,383 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:31:32,383 INFO L87 Difference]: Start difference. First operand 7505 states and 11205 transitions. Second operand has 5 states, 5 states have (on average 741.4) internal successors, (3707), 5 states have internal predecessors, (3707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:31:32,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:31:32,916 INFO L93 Difference]: Finished difference Result 13968 states and 20848 transitions. [2024-12-02 13:31:32,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:31:32,917 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 741.4) internal successors, (3707), 5 states have internal predecessors, (3707), 0 states have call successors, (0), 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 3707 [2024-12-02 13:31:32,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:31:32,923 INFO L225 Difference]: With dead ends: 13968 [2024-12-02 13:31:32,923 INFO L226 Difference]: Without dead ends: 7505 [2024-12-02 13:31:32,926 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:31:32,926 INFO L435 NwaCegarLoop]: 9620 mSDtfsCounter, 18539 mSDsluCounter, 9617 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18539 SdHoareTripleChecker+Valid, 19237 SdHoareTripleChecker+Invalid, 627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 13:31:32,926 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18539 Valid, 19237 Invalid, 627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 13:31:32,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7505 states. [2024-12-02 13:31:32,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7505 to 7505. [2024-12-02 13:31:32,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7505 states, 7504 states have (on average 1.4930703624733475) internal successors, (11204), 7504 states have internal predecessors, (11204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:31:32,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7505 states to 7505 states and 11204 transitions. [2024-12-02 13:31:32,978 INFO L78 Accepts]: Start accepts. Automaton has 7505 states and 11204 transitions. Word has length 3707 [2024-12-02 13:31:32,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:31:32,979 INFO L471 AbstractCegarLoop]: Abstraction has 7505 states and 11204 transitions. [2024-12-02 13:31:32,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 741.4) internal successors, (3707), 5 states have internal predecessors, (3707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:31:32,979 INFO L276 IsEmpty]: Start isEmpty. Operand 7505 states and 11204 transitions. [2024-12-02 13:31:33,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3709 [2024-12-02 13:31:33,033 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:31:33,033 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:31:33,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-12-02 13:31:33,033 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:31:33,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:31:33,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1578678269, now seen corresponding path program 1 times [2024-12-02 13:31:33,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:31:33,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728981008] [2024-12-02 13:31:33,035 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:31:33,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:31:35,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:31:40,414 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:31:40,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:31:40,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728981008] [2024-12-02 13:31:40,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728981008] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:31:40,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:31:40,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:31:40,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696989647] [2024-12-02 13:31:40,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:31:40,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:31:40,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:31:40,417 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:31:40,417 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:31:40,418 INFO L87 Difference]: Start difference. First operand 7505 states and 11204 transitions. Second operand has 4 states, 4 states have (on average 927.0) internal successors, (3708), 4 states have internal predecessors, (3708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:31:41,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:31:41,135 INFO L93 Difference]: Finished difference Result 13968 states and 20846 transitions. [2024-12-02 13:31:41,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:31:41,137 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 927.0) internal successors, (3708), 4 states have internal predecessors, (3708), 0 states have call successors, (0), 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 3708 [2024-12-02 13:31:41,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:31:41,142 INFO L225 Difference]: With dead ends: 13968 [2024-12-02 13:31:41,142 INFO L226 Difference]: Without dead ends: 7505 [2024-12-02 13:31:41,145 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:31:41,145 INFO L435 NwaCegarLoop]: 9454 mSDtfsCounter, 8993 mSDsluCounter, 9448 mSDsCounter, 0 mSdLazyCounter, 957 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8993 SdHoareTripleChecker+Valid, 18902 SdHoareTripleChecker+Invalid, 958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 957 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 13:31:41,145 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8993 Valid, 18902 Invalid, 958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 957 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 13:31:41,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7505 states. [2024-12-02 13:31:41,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7505 to 7505. [2024-12-02 13:31:41,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7505 states, 7504 states have (on average 1.4928038379530917) internal successors, (11202), 7504 states have internal predecessors, (11202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:31:41,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7505 states to 7505 states and 11202 transitions. [2024-12-02 13:31:41,197 INFO L78 Accepts]: Start accepts. Automaton has 7505 states and 11202 transitions. Word has length 3708 [2024-12-02 13:31:41,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:31:41,198 INFO L471 AbstractCegarLoop]: Abstraction has 7505 states and 11202 transitions. [2024-12-02 13:31:41,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 927.0) internal successors, (3708), 4 states have internal predecessors, (3708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:31:41,198 INFO L276 IsEmpty]: Start isEmpty. Operand 7505 states and 11202 transitions. [2024-12-02 13:31:41,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3710 [2024-12-02 13:31:41,252 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:31:41,252 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:31:41,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-12-02 13:31:41,253 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:31:41,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:31:41,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1002946802, now seen corresponding path program 1 times [2024-12-02 13:31:41,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:31:41,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266982865] [2024-12-02 13:31:41,254 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:31:41,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:31:43,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:31:48,839 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:31:48,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:31:48,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266982865] [2024-12-02 13:31:48,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266982865] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:31:48,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:31:48,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:31:48,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135277319] [2024-12-02 13:31:48,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:31:48,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:31:48,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:31:48,843 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:31:48,843 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:31:48,844 INFO L87 Difference]: Start difference. First operand 7505 states and 11202 transitions. Second operand has 5 states, 5 states have (on average 741.8) internal successors, (3709), 5 states have internal predecessors, (3709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:31:48,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:31:48,980 INFO L93 Difference]: Finished difference Result 13969 states and 20844 transitions. [2024-12-02 13:31:48,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:31:48,981 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 741.8) internal successors, (3709), 5 states have internal predecessors, (3709), 0 states have call successors, (0), 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 3709 [2024-12-02 13:31:48,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:31:48,986 INFO L225 Difference]: With dead ends: 13969 [2024-12-02 13:31:48,986 INFO L226 Difference]: Without dead ends: 7506 [2024-12-02 13:31:48,989 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:31:48,989 INFO L435 NwaCegarLoop]: 9911 mSDtfsCounter, 9001 mSDsluCounter, 19817 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9001 SdHoareTripleChecker+Valid, 29728 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:31:48,989 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9001 Valid, 29728 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:31:48,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7506 states. [2024-12-02 13:31:49,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7506 to 7506. [2024-12-02 13:31:49,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7506 states, 7505 states have (on average 1.4927381745503) internal successors, (11203), 7505 states have internal predecessors, (11203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:31:49,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7506 states to 7506 states and 11203 transitions. [2024-12-02 13:31:49,043 INFO L78 Accepts]: Start accepts. Automaton has 7506 states and 11203 transitions. Word has length 3709 [2024-12-02 13:31:49,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:31:49,044 INFO L471 AbstractCegarLoop]: Abstraction has 7506 states and 11203 transitions. [2024-12-02 13:31:49,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 741.8) internal successors, (3709), 5 states have internal predecessors, (3709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:31:49,044 INFO L276 IsEmpty]: Start isEmpty. Operand 7506 states and 11203 transitions. [2024-12-02 13:31:49,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3710 [2024-12-02 13:31:49,097 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:31:49,098 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:31:49,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-12-02 13:31:49,098 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:31:49,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:31:49,099 INFO L85 PathProgramCache]: Analyzing trace with hash -727317810, now seen corresponding path program 1 times [2024-12-02 13:31:49,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:31:49,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935617366] [2024-12-02 13:31:49,099 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:31:49,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:31:52,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:31:58,250 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:31:58,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:31:58,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935617366] [2024-12-02 13:31:58,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935617366] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:31:58,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:31:58,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:31:58,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001848776] [2024-12-02 13:31:58,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:31:58,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:31:58,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:31:58,256 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:31:58,256 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:31:58,256 INFO L87 Difference]: Start difference. First operand 7506 states and 11203 transitions. Second operand has 5 states, 5 states have (on average 741.8) internal successors, (3709), 5 states have internal predecessors, (3709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:31:58,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:31:58,869 INFO L93 Difference]: Finished difference Result 13970 states and 20844 transitions. [2024-12-02 13:31:58,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:31:58,871 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 741.8) internal successors, (3709), 5 states have internal predecessors, (3709), 0 states have call successors, (0), 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 3709 [2024-12-02 13:31:58,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:31:58,878 INFO L225 Difference]: With dead ends: 13970 [2024-12-02 13:31:58,879 INFO L226 Difference]: Without dead ends: 7506 [2024-12-02 13:31:58,883 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:31:58,884 INFO L435 NwaCegarLoop]: 9620 mSDtfsCounter, 18417 mSDsluCounter, 9617 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18417 SdHoareTripleChecker+Valid, 19237 SdHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 13:31:58,884 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18417 Valid, 19237 Invalid, 621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 13:31:58,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7506 states. [2024-12-02 13:31:58,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7506 to 7506. [2024-12-02 13:31:58,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7506 states, 7505 states have (on average 1.4926049300466355) internal successors, (11202), 7505 states have internal predecessors, (11202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:31:59,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7506 states to 7506 states and 11202 transitions. [2024-12-02 13:31:59,023 INFO L78 Accepts]: Start accepts. Automaton has 7506 states and 11202 transitions. Word has length 3709 [2024-12-02 13:31:59,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:31:59,024 INFO L471 AbstractCegarLoop]: Abstraction has 7506 states and 11202 transitions. [2024-12-02 13:31:59,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 741.8) internal successors, (3709), 5 states have internal predecessors, (3709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:31:59,025 INFO L276 IsEmpty]: Start isEmpty. Operand 7506 states and 11202 transitions. [2024-12-02 13:31:59,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3711 [2024-12-02 13:31:59,078 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:31:59,079 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:31:59,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-12-02 13:31:59,079 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:31:59,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:31:59,080 INFO L85 PathProgramCache]: Analyzing trace with hash -957498460, now seen corresponding path program 1 times [2024-12-02 13:31:59,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:31:59,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482858807] [2024-12-02 13:31:59,080 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:31:59,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:32:01,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:32:07,701 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:32:07,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:32:07,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482858807] [2024-12-02 13:32:07,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482858807] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:32:07,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:32:07,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:32:07,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651598057] [2024-12-02 13:32:07,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:32:07,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:32:07,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:32:07,703 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:32:07,703 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:32:07,704 INFO L87 Difference]: Start difference. First operand 7506 states and 11202 transitions. Second operand has 4 states, 4 states have (on average 927.5) internal successors, (3710), 4 states have internal predecessors, (3710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:32:08,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:32:08,487 INFO L93 Difference]: Finished difference Result 13970 states and 20842 transitions. [2024-12-02 13:32:08,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:32:08,488 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 927.5) internal successors, (3710), 4 states have internal predecessors, (3710), 0 states have call successors, (0), 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 3710 [2024-12-02 13:32:08,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:32:08,493 INFO L225 Difference]: With dead ends: 13970 [2024-12-02 13:32:08,493 INFO L226 Difference]: Without dead ends: 7506 [2024-12-02 13:32:08,495 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:32:08,496 INFO L435 NwaCegarLoop]: 9453 mSDtfsCounter, 8932 mSDsluCounter, 9447 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8932 SdHoareTripleChecker+Valid, 18900 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 13:32:08,496 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8932 Valid, 18900 Invalid, 954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 953 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 13:32:08,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7506 states. [2024-12-02 13:32:08,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7506 to 7506. [2024-12-02 13:32:08,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7506 states, 7505 states have (on average 1.492338441039307) internal successors, (11200), 7505 states have internal predecessors, (11200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:32:08,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7506 states to 7506 states and 11200 transitions. [2024-12-02 13:32:08,546 INFO L78 Accepts]: Start accepts. Automaton has 7506 states and 11200 transitions. Word has length 3710 [2024-12-02 13:32:08,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:32:08,546 INFO L471 AbstractCegarLoop]: Abstraction has 7506 states and 11200 transitions. [2024-12-02 13:32:08,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 927.5) internal successors, (3710), 4 states have internal predecessors, (3710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:32:08,547 INFO L276 IsEmpty]: Start isEmpty. Operand 7506 states and 11200 transitions. [2024-12-02 13:32:08,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3712 [2024-12-02 13:32:08,599 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:32:08,600 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:32:08,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2024-12-02 13:32:08,600 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:32:08,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:32:08,601 INFO L85 PathProgramCache]: Analyzing trace with hash 580065286, now seen corresponding path program 1 times [2024-12-02 13:32:08,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:32:08,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396167488] [2024-12-02 13:32:08,601 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:32:08,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:32:11,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:32:16,759 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:32:16,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:32:16,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396167488] [2024-12-02 13:32:16,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396167488] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:32:16,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:32:16,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:32:16,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906324981] [2024-12-02 13:32:16,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:32:16,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:32:16,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:32:16,762 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:32:16,762 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:32:16,763 INFO L87 Difference]: Start difference. First operand 7506 states and 11200 transitions. Second operand has 5 states, 5 states have (on average 742.2) internal successors, (3711), 5 states have internal predecessors, (3711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:32:16,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:32:16,931 INFO L93 Difference]: Finished difference Result 13971 states and 20840 transitions. [2024-12-02 13:32:16,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:32:16,932 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 742.2) internal successors, (3711), 5 states have internal predecessors, (3711), 0 states have call successors, (0), 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 3711 [2024-12-02 13:32:16,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:32:16,937 INFO L225 Difference]: With dead ends: 13971 [2024-12-02 13:32:16,937 INFO L226 Difference]: Without dead ends: 7507 [2024-12-02 13:32:16,939 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:32:16,939 INFO L435 NwaCegarLoop]: 9910 mSDtfsCounter, 8940 mSDsluCounter, 19815 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8940 SdHoareTripleChecker+Valid, 29725 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:32:16,940 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8940 Valid, 29725 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:32:16,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7507 states. [2024-12-02 13:32:17,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7507 to 7507. [2024-12-02 13:32:17,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7507 states, 7506 states have (on average 1.4922728483879564) internal successors, (11201), 7506 states have internal predecessors, (11201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:32:17,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7507 states to 7507 states and 11201 transitions. [2024-12-02 13:32:17,015 INFO L78 Accepts]: Start accepts. Automaton has 7507 states and 11201 transitions. Word has length 3711 [2024-12-02 13:32:17,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:32:17,016 INFO L471 AbstractCegarLoop]: Abstraction has 7507 states and 11201 transitions. [2024-12-02 13:32:17,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 742.2) internal successors, (3711), 5 states have internal predecessors, (3711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:32:17,017 INFO L276 IsEmpty]: Start isEmpty. Operand 7507 states and 11201 transitions. [2024-12-02 13:32:17,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3712 [2024-12-02 13:32:17,150 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:32:17,151 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:32:17,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2024-12-02 13:32:17,151 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:32:17,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:32:17,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1679877178, now seen corresponding path program 1 times [2024-12-02 13:32:17,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:32:17,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024647488] [2024-12-02 13:32:17,153 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:32:17,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:32:19,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:32:25,528 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:32:25,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:32:25,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024647488] [2024-12-02 13:32:25,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024647488] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:32:25,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:32:25,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:32:25,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527880890] [2024-12-02 13:32:25,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:32:25,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:32:25,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:32:25,533 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:32:25,533 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:32:25,534 INFO L87 Difference]: Start difference. First operand 7507 states and 11201 transitions. Second operand has 5 states, 5 states have (on average 742.2) internal successors, (3711), 5 states have internal predecessors, (3711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:32:26,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:32:26,071 INFO L93 Difference]: Finished difference Result 13972 states and 20840 transitions. [2024-12-02 13:32:26,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:32:26,072 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 742.2) internal successors, (3711), 5 states have internal predecessors, (3711), 0 states have call successors, (0), 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 3711 [2024-12-02 13:32:26,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:32:26,078 INFO L225 Difference]: With dead ends: 13972 [2024-12-02 13:32:26,078 INFO L226 Difference]: Without dead ends: 7507 [2024-12-02 13:32:26,082 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:32:26,082 INFO L435 NwaCegarLoop]: 9616 mSDtfsCounter, 9470 mSDsluCounter, 9614 mSDsCounter, 0 mSdLazyCounter, 622 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9470 SdHoareTripleChecker+Valid, 19230 SdHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 13:32:26,083 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9470 Valid, 19230 Invalid, 623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 622 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 13:32:26,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7507 states. [2024-12-02 13:32:26,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7507 to 7507. [2024-12-02 13:32:26,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7507 states, 7506 states have (on average 1.4921396216360245) internal successors, (11200), 7506 states have internal predecessors, (11200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:32:26,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7507 states to 7507 states and 11200 transitions. [2024-12-02 13:32:26,162 INFO L78 Accepts]: Start accepts. Automaton has 7507 states and 11200 transitions. Word has length 3711 [2024-12-02 13:32:26,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:32:26,163 INFO L471 AbstractCegarLoop]: Abstraction has 7507 states and 11200 transitions. [2024-12-02 13:32:26,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 742.2) internal successors, (3711), 5 states have internal predecessors, (3711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:32:26,164 INFO L276 IsEmpty]: Start isEmpty. Operand 7507 states and 11200 transitions. [2024-12-02 13:32:26,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3713 [2024-12-02 13:32:26,298 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:32:26,299 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:32:26,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2024-12-02 13:32:26,299 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:32:26,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:32:26,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1465736076, now seen corresponding path program 1 times [2024-12-02 13:32:26,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:32:26,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683244551] [2024-12-02 13:32:26,301 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:32:26,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:32:29,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:32:34,091 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:32:34,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:32:34,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683244551] [2024-12-02 13:32:34,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683244551] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:32:34,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:32:34,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:32:34,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569646096] [2024-12-02 13:32:34,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:32:34,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:32:34,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:32:34,094 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:32:34,094 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:32:34,095 INFO L87 Difference]: Start difference. First operand 7507 states and 11200 transitions. Second operand has 4 states, 4 states have (on average 928.0) internal successors, (3712), 4 states have internal predecessors, (3712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:32:34,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:32:34,850 INFO L93 Difference]: Finished difference Result 13972 states and 20838 transitions. [2024-12-02 13:32:34,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:32:34,851 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 928.0) internal successors, (3712), 4 states have internal predecessors, (3712), 0 states have call successors, (0), 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 3712 [2024-12-02 13:32:34,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:32:34,857 INFO L225 Difference]: With dead ends: 13972 [2024-12-02 13:32:34,857 INFO L226 Difference]: Without dead ends: 7507 [2024-12-02 13:32:34,860 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:32:34,860 INFO L435 NwaCegarLoop]: 9452 mSDtfsCounter, 8917 mSDsluCounter, 9446 mSDsCounter, 0 mSdLazyCounter, 949 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8917 SdHoareTripleChecker+Valid, 18898 SdHoareTripleChecker+Invalid, 950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 13:32:34,860 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8917 Valid, 18898 Invalid, 950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 949 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 13:32:34,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7507 states. [2024-12-02 13:32:34,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7507 to 7507. [2024-12-02 13:32:34,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7507 states, 7506 states have (on average 1.4918731681321609) internal successors, (11198), 7506 states have internal predecessors, (11198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:32:34,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7507 states to 7507 states and 11198 transitions. [2024-12-02 13:32:34,915 INFO L78 Accepts]: Start accepts. Automaton has 7507 states and 11198 transitions. Word has length 3712 [2024-12-02 13:32:34,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:32:34,915 INFO L471 AbstractCegarLoop]: Abstraction has 7507 states and 11198 transitions. [2024-12-02 13:32:34,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 928.0) internal successors, (3712), 4 states have internal predecessors, (3712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:32:34,916 INFO L276 IsEmpty]: Start isEmpty. Operand 7507 states and 11198 transitions. [2024-12-02 13:32:35,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3714 [2024-12-02 13:32:35,009 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:32:35,010 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:32:35,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2024-12-02 13:32:35,010 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:32:35,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:32:35,011 INFO L85 PathProgramCache]: Analyzing trace with hash -110803714, now seen corresponding path program 1 times [2024-12-02 13:32:35,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:32:35,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282201214] [2024-12-02 13:32:35,011 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:32:35,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:32:37,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:32:43,239 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:32:43,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:32:43,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282201214] [2024-12-02 13:32:43,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282201214] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:32:43,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:32:43,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:32:43,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684589167] [2024-12-02 13:32:43,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:32:43,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:32:43,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:32:43,243 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:32:43,243 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:32:43,243 INFO L87 Difference]: Start difference. First operand 7507 states and 11198 transitions. Second operand has 5 states, 5 states have (on average 742.6) internal successors, (3713), 5 states have internal predecessors, (3713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:32:43,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:32:43,378 INFO L93 Difference]: Finished difference Result 13973 states and 20836 transitions. [2024-12-02 13:32:43,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:32:43,379 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 742.6) internal successors, (3713), 5 states have internal predecessors, (3713), 0 states have call successors, (0), 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 3713 [2024-12-02 13:32:43,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:32:43,384 INFO L225 Difference]: With dead ends: 13973 [2024-12-02 13:32:43,384 INFO L226 Difference]: Without dead ends: 7508 [2024-12-02 13:32:43,387 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:32:43,387 INFO L435 NwaCegarLoop]: 9905 mSDtfsCounter, 8925 mSDsluCounter, 19805 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8925 SdHoareTripleChecker+Valid, 29710 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:32:43,387 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8925 Valid, 29710 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:32:43,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7508 states. [2024-12-02 13:32:43,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7508 to 7508. [2024-12-02 13:32:43,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7508 states, 7507 states have (on average 1.491807646196883) internal successors, (11199), 7507 states have internal predecessors, (11199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:32:43,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7508 states to 7508 states and 11199 transitions. [2024-12-02 13:32:43,441 INFO L78 Accepts]: Start accepts. Automaton has 7508 states and 11199 transitions. Word has length 3713 [2024-12-02 13:32:43,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:32:43,441 INFO L471 AbstractCegarLoop]: Abstraction has 7508 states and 11199 transitions. [2024-12-02 13:32:43,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 742.6) internal successors, (3713), 5 states have internal predecessors, (3713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:32:43,442 INFO L276 IsEmpty]: Start isEmpty. Operand 7508 states and 11199 transitions. [2024-12-02 13:32:43,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3714 [2024-12-02 13:32:43,577 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:32:43,578 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:32:43,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2024-12-02 13:32:43,578 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:32:43,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:32:43,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1787889474, now seen corresponding path program 1 times [2024-12-02 13:32:43,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:32:43,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055888878] [2024-12-02 13:32:43,580 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:32:43,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:32:46,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:32:53,070 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:32:53,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:32:53,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055888878] [2024-12-02 13:32:53,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055888878] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:32:53,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:32:53,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:32:53,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513096202] [2024-12-02 13:32:53,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:32:53,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:32:53,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:32:53,073 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:32:53,074 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:32:53,074 INFO L87 Difference]: Start difference. First operand 7508 states and 11199 transitions. Second operand has 5 states, 5 states have (on average 742.6) internal successors, (3713), 5 states have internal predecessors, (3713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:32:53,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:32:53,551 INFO L93 Difference]: Finished difference Result 13974 states and 20836 transitions. [2024-12-02 13:32:53,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:32:53,552 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 742.6) internal successors, (3713), 5 states have internal predecessors, (3713), 0 states have call successors, (0), 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 3713 [2024-12-02 13:32:53,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:32:53,558 INFO L225 Difference]: With dead ends: 13974 [2024-12-02 13:32:53,558 INFO L226 Difference]: Without dead ends: 7508 [2024-12-02 13:32:53,561 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:32:53,561 INFO L435 NwaCegarLoop]: 9616 mSDtfsCounter, 14181 mSDsluCounter, 9613 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14181 SdHoareTripleChecker+Valid, 19229 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 13:32:53,561 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14181 Valid, 19229 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 616 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 13:32:53,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7508 states. [2024-12-02 13:32:53,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7508 to 7508. [2024-12-02 13:32:53,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7508 states, 7507 states have (on average 1.4916744371919541) internal successors, (11198), 7507 states have internal predecessors, (11198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:32:53,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7508 states to 7508 states and 11198 transitions. [2024-12-02 13:32:53,633 INFO L78 Accepts]: Start accepts. Automaton has 7508 states and 11198 transitions. Word has length 3713 [2024-12-02 13:32:53,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:32:53,634 INFO L471 AbstractCegarLoop]: Abstraction has 7508 states and 11198 transitions. [2024-12-02 13:32:53,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 742.6) internal successors, (3713), 5 states have internal predecessors, (3713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:32:53,635 INFO L276 IsEmpty]: Start isEmpty. Operand 7508 states and 11198 transitions. [2024-12-02 13:32:53,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3715 [2024-12-02 13:32:53,687 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:32:53,688 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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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 13:32:53,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2024-12-02 13:32:53,688 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:32:53,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:32:53,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1769465092, now seen corresponding path program 1 times [2024-12-02 13:32:53,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:32:53,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379386088] [2024-12-02 13:32:53,689 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:32:53,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:32:56,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:33:01,486 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:33:01,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:33:01,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379386088] [2024-12-02 13:33:01,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379386088] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:33:01,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:33:01,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:33:01,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466622042] [2024-12-02 13:33:01,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:33:01,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:33:01,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:33:01,489 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:33:01,489 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:33:01,490 INFO L87 Difference]: Start difference. First operand 7508 states and 11198 transitions. Second operand has 4 states, 4 states have (on average 928.5) internal successors, (3714), 4 states have internal predecessors, (3714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:33:02,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:33:02,228 INFO L93 Difference]: Finished difference Result 13974 states and 20834 transitions. [2024-12-02 13:33:02,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:33:02,229 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 928.5) internal successors, (3714), 4 states have internal predecessors, (3714), 0 states have call successors, (0), 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 3714 [2024-12-02 13:33:02,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:33:02,235 INFO L225 Difference]: With dead ends: 13974 [2024-12-02 13:33:02,235 INFO L226 Difference]: Without dead ends: 7508 [2024-12-02 13:33:02,238 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:33:02,239 INFO L435 NwaCegarLoop]: 9451 mSDtfsCounter, 6814 mSDsluCounter, 9445 mSDsCounter, 0 mSdLazyCounter, 945 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6814 SdHoareTripleChecker+Valid, 18896 SdHoareTripleChecker+Invalid, 946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 13:33:02,239 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6814 Valid, 18896 Invalid, 946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 945 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 13:33:02,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7508 states. [2024-12-02 13:33:02,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7508 to 7508. [2024-12-02 13:33:02,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7508 states, 7507 states have (on average 1.4914080191820966) internal successors, (11196), 7507 states have internal predecessors, (11196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:33:02,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7508 states to 7508 states and 11196 transitions. [2024-12-02 13:33:02,291 INFO L78 Accepts]: Start accepts. Automaton has 7508 states and 11196 transitions. Word has length 3714 [2024-12-02 13:33:02,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:33:02,292 INFO L471 AbstractCegarLoop]: Abstraction has 7508 states and 11196 transitions. [2024-12-02 13:33:02,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 928.5) internal successors, (3714), 4 states have internal predecessors, (3714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:33:02,293 INFO L276 IsEmpty]: Start isEmpty. Operand 7508 states and 11196 transitions. [2024-12-02 13:33:02,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3716 [2024-12-02 13:33:02,346 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:33:02,346 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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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 13:33:02,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2024-12-02 13:33:02,346 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:33:02,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:33:02,347 INFO L85 PathProgramCache]: Analyzing trace with hash -708903178, now seen corresponding path program 1 times [2024-12-02 13:33:02,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:33:02,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172233402] [2024-12-02 13:33:02,348 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:33:02,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:33:04,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:33:10,920 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:33:10,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:33:10,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172233402] [2024-12-02 13:33:10,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172233402] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:33:10,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:33:10,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:33:10,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128826631] [2024-12-02 13:33:10,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:33:10,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:33:10,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:33:10,925 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:33:10,925 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:33:10,926 INFO L87 Difference]: Start difference. First operand 7508 states and 11196 transitions. Second operand has 5 states, 5 states have (on average 743.0) internal successors, (3715), 5 states have internal predecessors, (3715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:33:11,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:33:11,071 INFO L93 Difference]: Finished difference Result 13975 states and 20832 transitions. [2024-12-02 13:33:11,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:33:11,072 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 743.0) internal successors, (3715), 5 states have internal predecessors, (3715), 0 states have call successors, (0), 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 3715 [2024-12-02 13:33:11,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:33:11,078 INFO L225 Difference]: With dead ends: 13975 [2024-12-02 13:33:11,078 INFO L226 Difference]: Without dead ends: 7509 [2024-12-02 13:33:11,081 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:33:11,081 INFO L435 NwaCegarLoop]: 9904 mSDtfsCounter, 6822 mSDsluCounter, 19803 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6822 SdHoareTripleChecker+Valid, 29707 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:33:11,082 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6822 Valid, 29707 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:33:11,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7509 states. [2024-12-02 13:33:11,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7509 to 7509. [2024-12-02 13:33:11,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7509 states, 7508 states have (on average 1.491342567927544) internal successors, (11197), 7508 states have internal predecessors, (11197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:33:11,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7509 states to 7509 states and 11197 transitions. [2024-12-02 13:33:11,135 INFO L78 Accepts]: Start accepts. Automaton has 7509 states and 11197 transitions. Word has length 3715 [2024-12-02 13:33:11,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:33:11,137 INFO L471 AbstractCegarLoop]: Abstraction has 7509 states and 11197 transitions. [2024-12-02 13:33:11,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 743.0) internal successors, (3715), 5 states have internal predecessors, (3715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:33:11,137 INFO L276 IsEmpty]: Start isEmpty. Operand 7509 states and 11197 transitions. [2024-12-02 13:33:11,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3716 [2024-12-02 13:33:11,190 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:33:11,191 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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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 13:33:11,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2024-12-02 13:33:11,191 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:33:11,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:33:11,192 INFO L85 PathProgramCache]: Analyzing trace with hash -257875274, now seen corresponding path program 1 times [2024-12-02 13:33:11,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:33:11,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297581530] [2024-12-02 13:33:11,192 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:33:11,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:33:13,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:33:20,431 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:33:20,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:33:20,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297581530] [2024-12-02 13:33:20,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297581530] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:33:20,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:33:20,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:33:20,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799717987] [2024-12-02 13:33:20,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:33:20,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:33:20,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:33:20,482 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:33:20,482 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:33:20,483 INFO L87 Difference]: Start difference. First operand 7509 states and 11197 transitions. Second operand has 5 states, 5 states have (on average 743.0) internal successors, (3715), 5 states have internal predecessors, (3715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:33:20,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:33:20,958 INFO L93 Difference]: Finished difference Result 13976 states and 20832 transitions. [2024-12-02 13:33:20,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:33:20,959 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 743.0) internal successors, (3715), 5 states have internal predecessors, (3715), 0 states have call successors, (0), 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 3715 [2024-12-02 13:33:20,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:33:20,965 INFO L225 Difference]: With dead ends: 13976 [2024-12-02 13:33:20,965 INFO L226 Difference]: Without dead ends: 7509 [2024-12-02 13:33:20,968 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:33:20,969 INFO L435 NwaCegarLoop]: 9612 mSDtfsCounter, 14151 mSDsluCounter, 9609 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14151 SdHoareTripleChecker+Valid, 19221 SdHoareTripleChecker+Invalid, 619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 13:33:20,969 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14151 Valid, 19221 Invalid, 619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 618 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 13:33:20,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7509 states. [2024-12-02 13:33:21,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7509 to 7509. [2024-12-02 13:33:21,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7509 states, 7508 states have (on average 1.4912093766648908) internal successors, (11196), 7508 states have internal predecessors, (11196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:33:21,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7509 states to 7509 states and 11196 transitions. [2024-12-02 13:33:21,021 INFO L78 Accepts]: Start accepts. Automaton has 7509 states and 11196 transitions. Word has length 3715 [2024-12-02 13:33:21,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:33:21,023 INFO L471 AbstractCegarLoop]: Abstraction has 7509 states and 11196 transitions. [2024-12-02 13:33:21,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 743.0) internal successors, (3715), 5 states have internal predecessors, (3715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:33:21,023 INFO L276 IsEmpty]: Start isEmpty. Operand 7509 states and 11196 transitions. [2024-12-02 13:33:21,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3717 [2024-12-02 13:33:21,078 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:33:21,079 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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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 13:33:21,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2024-12-02 13:33:21,080 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:33:21,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:33:21,081 INFO L85 PathProgramCache]: Analyzing trace with hash 975165924, now seen corresponding path program 1 times [2024-12-02 13:33:21,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:33:21,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035528696] [2024-12-02 13:33:21,082 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:33:21,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:33:23,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:33:29,794 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:33:29,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:33:29,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035528696] [2024-12-02 13:33:29,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035528696] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:33:29,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:33:29,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:33:29,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706696769] [2024-12-02 13:33:29,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:33:29,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:33:29,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:33:29,799 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:33:29,799 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:33:29,800 INFO L87 Difference]: Start difference. First operand 7509 states and 11196 transitions. Second operand has 4 states, 4 states have (on average 929.0) internal successors, (3716), 4 states have internal predecessors, (3716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:33:30,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:33:30,561 INFO L93 Difference]: Finished difference Result 13976 states and 20830 transitions. [2024-12-02 13:33:30,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:33:30,562 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 929.0) internal successors, (3716), 4 states have internal predecessors, (3716), 0 states have call successors, (0), 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 3716 [2024-12-02 13:33:30,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:33:30,568 INFO L225 Difference]: With dead ends: 13976 [2024-12-02 13:33:30,568 INFO L226 Difference]: Without dead ends: 7509 [2024-12-02 13:33:30,571 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:33:30,572 INFO L435 NwaCegarLoop]: 9450 mSDtfsCounter, 6799 mSDsluCounter, 9444 mSDsCounter, 0 mSdLazyCounter, 941 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6799 SdHoareTripleChecker+Valid, 18894 SdHoareTripleChecker+Invalid, 942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 941 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 13:33:30,572 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6799 Valid, 18894 Invalid, 942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 941 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 13:33:30,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7509 states. [2024-12-02 13:33:30,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7509 to 7509. [2024-12-02 13:33:30,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7509 states, 7508 states have (on average 1.4909429941395844) internal successors, (11194), 7508 states have internal predecessors, (11194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:33:30,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7509 states to 7509 states and 11194 transitions. [2024-12-02 13:33:30,625 INFO L78 Accepts]: Start accepts. Automaton has 7509 states and 11194 transitions. Word has length 3716 [2024-12-02 13:33:30,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:33:30,626 INFO L471 AbstractCegarLoop]: Abstraction has 7509 states and 11194 transitions. [2024-12-02 13:33:30,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 929.0) internal successors, (3716), 4 states have internal predecessors, (3716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:33:30,627 INFO L276 IsEmpty]: Start isEmpty. Operand 7509 states and 11194 transitions. [2024-12-02 13:33:30,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3718 [2024-12-02 13:33:30,680 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:33:30,681 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 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 13:33:30,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2024-12-02 13:33:30,681 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:33:30,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:33:30,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1777271570, now seen corresponding path program 1 times [2024-12-02 13:33:30,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:33:30,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563908168] [2024-12-02 13:33:30,682 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:33:30,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:33:33,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:33:38,527 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:33:38,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:33:38,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563908168] [2024-12-02 13:33:38,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563908168] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:33:38,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:33:38,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:33:38,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049754588] [2024-12-02 13:33:38,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:33:38,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:33:38,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:33:38,559 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:33:38,559 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:33:38,560 INFO L87 Difference]: Start difference. First operand 7509 states and 11194 transitions. Second operand has 5 states, 5 states have (on average 743.4) internal successors, (3717), 5 states have internal predecessors, (3717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:33:38,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:33:38,696 INFO L93 Difference]: Finished difference Result 13977 states and 20828 transitions. [2024-12-02 13:33:38,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:33:38,697 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 743.4) internal successors, (3717), 5 states have internal predecessors, (3717), 0 states have call successors, (0), 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 3717 [2024-12-02 13:33:38,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:33:38,703 INFO L225 Difference]: With dead ends: 13977 [2024-12-02 13:33:38,703 INFO L226 Difference]: Without dead ends: 7510 [2024-12-02 13:33:38,706 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:33:38,706 INFO L435 NwaCegarLoop]: 9899 mSDtfsCounter, 6807 mSDsluCounter, 19793 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6807 SdHoareTripleChecker+Valid, 29692 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:33:38,706 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6807 Valid, 29692 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:33:38,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7510 states. [2024-12-02 13:33:38,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7510 to 7510. [2024-12-02 13:33:38,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7510 states, 7509 states have (on average 1.4908776135304302) internal successors, (11195), 7509 states have internal predecessors, (11195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:33:38,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7510 states to 7510 states and 11195 transitions. [2024-12-02 13:33:38,758 INFO L78 Accepts]: Start accepts. Automaton has 7510 states and 11195 transitions. Word has length 3717 [2024-12-02 13:33:38,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:33:38,759 INFO L471 AbstractCegarLoop]: Abstraction has 7510 states and 11195 transitions. [2024-12-02 13:33:38,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 743.4) internal successors, (3717), 5 states have internal predecessors, (3717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:33:38,760 INFO L276 IsEmpty]: Start isEmpty. Operand 7510 states and 11195 transitions. [2024-12-02 13:33:38,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3718 [2024-12-02 13:33:38,813 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:33:38,814 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 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 13:33:38,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2024-12-02 13:33:38,814 INFO L396 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:33:38,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:33:38,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1831284562, now seen corresponding path program 1 times [2024-12-02 13:33:38,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:33:38,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458096856] [2024-12-02 13:33:38,815 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:33:38,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:33:41,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:33:47,884 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:33:47,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:33:47,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458096856] [2024-12-02 13:33:47,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458096856] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:33:47,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:33:47,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:33:47,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103550478] [2024-12-02 13:33:47,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:33:47,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:33:47,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:33:47,890 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:33:47,890 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:33:47,891 INFO L87 Difference]: Start difference. First operand 7510 states and 11195 transitions. Second operand has 5 states, 5 states have (on average 743.4) internal successors, (3717), 5 states have internal predecessors, (3717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:33:48,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:33:48,494 INFO L93 Difference]: Finished difference Result 13978 states and 20828 transitions. [2024-12-02 13:33:48,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:33:48,495 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 743.4) internal successors, (3717), 5 states have internal predecessors, (3717), 0 states have call successors, (0), 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 3717 [2024-12-02 13:33:48,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:33:48,503 INFO L225 Difference]: With dead ends: 13978 [2024-12-02 13:33:48,504 INFO L226 Difference]: Without dead ends: 7510 [2024-12-02 13:33:48,507 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:33:48,508 INFO L435 NwaCegarLoop]: 9612 mSDtfsCounter, 14105 mSDsluCounter, 9609 mSDsCounter, 0 mSdLazyCounter, 612 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14105 SdHoareTripleChecker+Valid, 19221 SdHoareTripleChecker+Invalid, 613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 13:33:48,508 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14105 Valid, 19221 Invalid, 613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 612 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 13:33:48,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7510 states. [2024-12-02 13:33:48,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7510 to 7510. [2024-12-02 13:33:48,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7510 states, 7509 states have (on average 1.490744440005327) internal successors, (11194), 7509 states have internal predecessors, (11194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:33:48,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7510 states to 7510 states and 11194 transitions. [2024-12-02 13:33:48,651 INFO L78 Accepts]: Start accepts. Automaton has 7510 states and 11194 transitions. Word has length 3717 [2024-12-02 13:33:48,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:33:48,653 INFO L471 AbstractCegarLoop]: Abstraction has 7510 states and 11194 transitions. [2024-12-02 13:33:48,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 743.4) internal successors, (3717), 5 states have internal predecessors, (3717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:33:48,654 INFO L276 IsEmpty]: Start isEmpty. Operand 7510 states and 11194 transitions. [2024-12-02 13:33:48,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3719 [2024-12-02 13:33:48,716 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:33:48,716 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:33:48,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2024-12-02 13:33:48,717 INFO L396 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:33:48,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:33:48,717 INFO L85 PathProgramCache]: Analyzing trace with hash 470299696, now seen corresponding path program 1 times [2024-12-02 13:33:48,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:33:48,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614617985] [2024-12-02 13:33:48,718 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:33:48,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:33:51,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:33:57,371 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:33:57,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:33:57,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614617985] [2024-12-02 13:33:57,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614617985] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:33:57,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:33:57,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:33:57,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274717733] [2024-12-02 13:33:57,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:33:57,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:33:57,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:33:57,375 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:33:57,375 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:33:57,376 INFO L87 Difference]: Start difference. First operand 7510 states and 11194 transitions. Second operand has 4 states, 4 states have (on average 929.5) internal successors, (3718), 4 states have internal predecessors, (3718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:33:58,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:33:58,278 INFO L93 Difference]: Finished difference Result 13978 states and 20826 transitions. [2024-12-02 13:33:58,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:33:58,279 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 929.5) internal successors, (3718), 4 states have internal predecessors, (3718), 0 states have call successors, (0), 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 3718 [2024-12-02 13:33:58,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:33:58,289 INFO L225 Difference]: With dead ends: 13978 [2024-12-02 13:33:58,289 INFO L226 Difference]: Without dead ends: 7510 [2024-12-02 13:33:58,293 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:33:58,293 INFO L435 NwaCegarLoop]: 9449 mSDtfsCounter, 6776 mSDsluCounter, 9443 mSDsCounter, 0 mSdLazyCounter, 937 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6776 SdHoareTripleChecker+Valid, 18892 SdHoareTripleChecker+Invalid, 938 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 937 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 13:33:58,293 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6776 Valid, 18892 Invalid, 938 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 937 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 13:33:58,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7510 states. [2024-12-02 13:33:58,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7510 to 7510. [2024-12-02 13:33:58,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7510 states, 7509 states have (on average 1.4904780929551205) internal successors, (11192), 7509 states have internal predecessors, (11192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:33:58,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7510 states to 7510 states and 11192 transitions. [2024-12-02 13:33:58,381 INFO L78 Accepts]: Start accepts. Automaton has 7510 states and 11192 transitions. Word has length 3718 [2024-12-02 13:33:58,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:33:58,383 INFO L471 AbstractCegarLoop]: Abstraction has 7510 states and 11192 transitions. [2024-12-02 13:33:58,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 929.5) internal successors, (3718), 4 states have internal predecessors, (3718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:33:58,384 INFO L276 IsEmpty]: Start isEmpty. Operand 7510 states and 11192 transitions. [2024-12-02 13:33:58,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3720 [2024-12-02 13:33:58,523 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:33:58,524 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 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 13:33:58,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2024-12-02 13:33:58,525 INFO L396 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:33:58,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:33:58,526 INFO L85 PathProgramCache]: Analyzing trace with hash 2120541030, now seen corresponding path program 1 times [2024-12-02 13:33:58,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:33:58,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882498219] [2024-12-02 13:33:58,526 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:33:58,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:34:01,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:34:07,460 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:34:07,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:34:07,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882498219] [2024-12-02 13:34:07,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882498219] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:34:07,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:34:07,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:34:07,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657090670] [2024-12-02 13:34:07,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:34:07,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:34:07,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:34:07,464 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:34:07,464 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:34:07,465 INFO L87 Difference]: Start difference. First operand 7510 states and 11192 transitions. Second operand has 5 states, 5 states have (on average 743.8) internal successors, (3719), 5 states have internal predecessors, (3719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:34:07,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:34:07,604 INFO L93 Difference]: Finished difference Result 13979 states and 20824 transitions. [2024-12-02 13:34:07,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:34:07,605 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 743.8) internal successors, (3719), 5 states have internal predecessors, (3719), 0 states have call successors, (0), 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 3719 [2024-12-02 13:34:07,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:34:07,612 INFO L225 Difference]: With dead ends: 13979 [2024-12-02 13:34:07,612 INFO L226 Difference]: Without dead ends: 7511 [2024-12-02 13:34:07,615 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:34:07,615 INFO L435 NwaCegarLoop]: 9898 mSDtfsCounter, 6784 mSDsluCounter, 19791 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6784 SdHoareTripleChecker+Valid, 29689 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:34:07,615 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6784 Valid, 29689 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:34:07,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7511 states. [2024-12-02 13:34:07,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7511 to 7511. [2024-12-02 13:34:07,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7511 states, 7510 states have (on average 1.4904127829560585) internal successors, (11193), 7510 states have internal predecessors, (11193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:34:07,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7511 states to 7511 states and 11193 transitions. [2024-12-02 13:34:07,666 INFO L78 Accepts]: Start accepts. Automaton has 7511 states and 11193 transitions. Word has length 3719 [2024-12-02 13:34:07,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:34:07,668 INFO L471 AbstractCegarLoop]: Abstraction has 7511 states and 11193 transitions. [2024-12-02 13:34:07,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 743.8) internal successors, (3719), 5 states have internal predecessors, (3719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:34:07,668 INFO L276 IsEmpty]: Start isEmpty. Operand 7511 states and 11193 transitions. [2024-12-02 13:34:07,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3720 [2024-12-02 13:34:07,721 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:34:07,722 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 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 13:34:07,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2024-12-02 13:34:07,722 INFO L396 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:34:07,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:34:07,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1544431398, now seen corresponding path program 1 times [2024-12-02 13:34:07,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:34:07,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826100462] [2024-12-02 13:34:07,723 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:34:07,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:34:10,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:34:16,842 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:34:16,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:34:16,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826100462] [2024-12-02 13:34:16,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826100462] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:34:16,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:34:16,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:34:16,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832742631] [2024-12-02 13:34:16,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:34:16,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:34:16,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:34:16,845 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:34:16,845 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:34:16,845 INFO L87 Difference]: Start difference. First operand 7511 states and 11193 transitions. Second operand has 5 states, 5 states have (on average 743.8) internal successors, (3719), 5 states have internal predecessors, (3719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:34:17,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:34:17,285 INFO L93 Difference]: Finished difference Result 13980 states and 20824 transitions. [2024-12-02 13:34:17,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:34:17,286 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 743.8) internal successors, (3719), 5 states have internal predecessors, (3719), 0 states have call successors, (0), 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 3719 [2024-12-02 13:34:17,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:34:17,292 INFO L225 Difference]: With dead ends: 13980 [2024-12-02 13:34:17,292 INFO L226 Difference]: Without dead ends: 7511 [2024-12-02 13:34:17,295 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:34:17,295 INFO L435 NwaCegarLoop]: 9608 mSDtfsCounter, 7314 mSDsluCounter, 9606 mSDsCounter, 0 mSdLazyCounter, 614 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7314 SdHoareTripleChecker+Valid, 19214 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 13:34:17,296 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7314 Valid, 19214 Invalid, 615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 614 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 13:34:17,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7511 states. [2024-12-02 13:34:17,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7511 to 7511. [2024-12-02 13:34:17,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7511 states, 7510 states have (on average 1.4902796271637817) internal successors, (11192), 7510 states have internal predecessors, (11192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:34:17,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7511 states to 7511 states and 11192 transitions. [2024-12-02 13:34:17,348 INFO L78 Accepts]: Start accepts. Automaton has 7511 states and 11192 transitions. Word has length 3719 [2024-12-02 13:34:17,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:34:17,350 INFO L471 AbstractCegarLoop]: Abstraction has 7511 states and 11192 transitions. [2024-12-02 13:34:17,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 743.8) internal successors, (3719), 5 states have internal predecessors, (3719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:34:17,350 INFO L276 IsEmpty]: Start isEmpty. Operand 7511 states and 11192 transitions. [2024-12-02 13:34:17,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3721 [2024-12-02 13:34:17,437 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:34:17,437 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:34:17,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2024-12-02 13:34:17,437 INFO L396 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:34:17,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:34:17,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1413080728, now seen corresponding path program 1 times [2024-12-02 13:34:17,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:34:17,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356321899] [2024-12-02 13:34:17,439 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:34:17,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:34:20,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:34:25,964 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:34:25,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:34:25,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356321899] [2024-12-02 13:34:25,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356321899] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:34:25,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:34:25,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:34:25,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580983179] [2024-12-02 13:34:25,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:34:25,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:34:25,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:34:25,967 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:34:25,967 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:34:25,968 INFO L87 Difference]: Start difference. First operand 7511 states and 11192 transitions. Second operand has 4 states, 4 states have (on average 930.0) internal successors, (3720), 4 states have internal predecessors, (3720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:34:26,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:34:26,730 INFO L93 Difference]: Finished difference Result 13980 states and 20822 transitions. [2024-12-02 13:34:26,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:34:26,731 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 930.0) internal successors, (3720), 4 states have internal predecessors, (3720), 0 states have call successors, (0), 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 3720 [2024-12-02 13:34:26,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:34:26,737 INFO L225 Difference]: With dead ends: 13980 [2024-12-02 13:34:26,738 INFO L226 Difference]: Without dead ends: 7511 [2024-12-02 13:34:26,740 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:34:26,741 INFO L435 NwaCegarLoop]: 9448 mSDtfsCounter, 6755 mSDsluCounter, 9443 mSDsCounter, 0 mSdLazyCounter, 933 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6755 SdHoareTripleChecker+Valid, 18891 SdHoareTripleChecker+Invalid, 934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 13:34:26,741 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6755 Valid, 18891 Invalid, 934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 933 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 13:34:26,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7511 states. [2024-12-02 13:34:26,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7511 to 7511. [2024-12-02 13:34:26,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7511 states, 7510 states have (on average 1.4900133155792277) internal successors, (11190), 7510 states have internal predecessors, (11190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:34:26,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7511 states to 7511 states and 11190 transitions. [2024-12-02 13:34:26,793 INFO L78 Accepts]: Start accepts. Automaton has 7511 states and 11190 transitions. Word has length 3720 [2024-12-02 13:34:26,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:34:26,794 INFO L471 AbstractCegarLoop]: Abstraction has 7511 states and 11190 transitions. [2024-12-02 13:34:26,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 930.0) internal successors, (3720), 4 states have internal predecessors, (3720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:34:26,795 INFO L276 IsEmpty]: Start isEmpty. Operand 7511 states and 11190 transitions. [2024-12-02 13:34:26,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3722 [2024-12-02 13:34:26,955 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:34:26,956 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 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 13:34:26,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2024-12-02 13:34:26,956 INFO L396 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:34:26,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:34:26,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1616899550, now seen corresponding path program 1 times [2024-12-02 13:34:26,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:34:26,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609305921] [2024-12-02 13:34:26,958 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:34:26,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:34:29,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:34:35,472 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:34:35,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:34:35,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609305921] [2024-12-02 13:34:35,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609305921] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:34:35,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:34:35,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:34:35,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775891796] [2024-12-02 13:34:35,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:34:35,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:34:35,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:34:35,477 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:34:35,478 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:34:35,478 INFO L87 Difference]: Start difference. First operand 7511 states and 11190 transitions. Second operand has 5 states, 5 states have (on average 744.2) internal successors, (3721), 5 states have internal predecessors, (3721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:34:35,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:34:35,670 INFO L93 Difference]: Finished difference Result 13981 states and 20820 transitions. [2024-12-02 13:34:35,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:34:35,671 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 744.2) internal successors, (3721), 5 states have internal predecessors, (3721), 0 states have call successors, (0), 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 3721 [2024-12-02 13:34:35,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:34:35,679 INFO L225 Difference]: With dead ends: 13981 [2024-12-02 13:34:35,679 INFO L226 Difference]: Without dead ends: 7512 [2024-12-02 13:34:35,682 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:34:35,683 INFO L435 NwaCegarLoop]: 9893 mSDtfsCounter, 6769 mSDsluCounter, 19781 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6769 SdHoareTripleChecker+Valid, 29674 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:34:35,683 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6769 Valid, 29674 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:34:35,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7512 states. [2024-12-02 13:34:35,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7512 to 7512. [2024-12-02 13:34:35,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7512 states, 7511 states have (on average 1.4899480761549726) internal successors, (11191), 7511 states have internal predecessors, (11191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:34:35,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7512 states to 7512 states and 11191 transitions. [2024-12-02 13:34:35,761 INFO L78 Accepts]: Start accepts. Automaton has 7512 states and 11191 transitions. Word has length 3721 [2024-12-02 13:34:35,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:34:35,763 INFO L471 AbstractCegarLoop]: Abstraction has 7512 states and 11191 transitions. [2024-12-02 13:34:35,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 744.2) internal successors, (3721), 5 states have internal predecessors, (3721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:34:35,764 INFO L276 IsEmpty]: Start isEmpty. Operand 7512 states and 11191 transitions. [2024-12-02 13:34:35,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3722 [2024-12-02 13:34:35,898 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:34:35,899 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 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 13:34:35,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2024-12-02 13:34:35,899 INFO L396 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:34:35,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:34:35,900 INFO L85 PathProgramCache]: Analyzing trace with hash 2018959774, now seen corresponding path program 1 times [2024-12-02 13:34:35,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:34:35,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256784728] [2024-12-02 13:34:35,901 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:34:35,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:34:40,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:34:47,914 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2024-12-02 13:34:47,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:34:47,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256784728] [2024-12-02 13:34:47,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256784728] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:34:47,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:34:47,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:34:47,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393122352] [2024-12-02 13:34:47,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:34:47,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:34:47,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:34:47,917 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:34:47,917 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:34:47,917 INFO L87 Difference]: Start difference. First operand 7512 states and 11191 transitions. Second operand has 5 states, 5 states have (on average 661.6) internal successors, (3308), 5 states have internal predecessors, (3308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:34:48,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:34:48,248 INFO L93 Difference]: Finished difference Result 13988 states and 20829 transitions. [2024-12-02 13:34:48,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:34:48,249 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 661.6) internal successors, (3308), 5 states have internal predecessors, (3308), 0 states have call successors, (0), 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 3721 [2024-12-02 13:34:48,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:34:48,254 INFO L225 Difference]: With dead ends: 13988 [2024-12-02 13:34:48,255 INFO L226 Difference]: Without dead ends: 7516 [2024-12-02 13:34:48,256 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:34:48,257 INFO L435 NwaCegarLoop]: 9914 mSDtfsCounter, 0 mSDsluCounter, 29726 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 39640 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:34:48,257 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 39640 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:34:48,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7516 states. [2024-12-02 13:34:48,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7516 to 7514. [2024-12-02 13:34:48,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7514 states, 7513 states have (on average 1.4898176494076933) internal successors, (11193), 7513 states have internal predecessors, (11193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:34:48,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7514 states to 7514 states and 11193 transitions. [2024-12-02 13:34:48,308 INFO L78 Accepts]: Start accepts. Automaton has 7514 states and 11193 transitions. Word has length 3721 [2024-12-02 13:34:48,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:34:48,309 INFO L471 AbstractCegarLoop]: Abstraction has 7514 states and 11193 transitions. [2024-12-02 13:34:48,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 661.6) internal successors, (3308), 5 states have internal predecessors, (3308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:34:48,310 INFO L276 IsEmpty]: Start isEmpty. Operand 7514 states and 11193 transitions. [2024-12-02 13:34:48,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3723 [2024-12-02 13:34:48,363 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:34:48,363 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 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 13:34:48,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2024-12-02 13:34:48,364 INFO L396 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:34:48,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:34:48,364 INFO L85 PathProgramCache]: Analyzing trace with hash -722559846, now seen corresponding path program 1 times [2024-12-02 13:34:48,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:34:48,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210584177] [2024-12-02 13:34:48,365 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:34:48,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:34:52,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:34:59,297 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked. [2024-12-02 13:34:59,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:34:59,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210584177] [2024-12-02 13:34:59,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210584177] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:34:59,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:34:59,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:34:59,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073614737] [2024-12-02 13:34:59,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:34:59,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:34:59,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:34:59,300 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:34:59,300 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:34:59,300 INFO L87 Difference]: Start difference. First operand 7514 states and 11193 transitions. Second operand has 5 states, 5 states have (on average 662.2) internal successors, (3311), 5 states have internal predecessors, (3311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:34:59,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:34:59,397 INFO L93 Difference]: Finished difference Result 13996 states and 20839 transitions. [2024-12-02 13:34:59,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:34:59,398 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 662.2) internal successors, (3311), 5 states have internal predecessors, (3311), 0 states have call successors, (0), 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 3722 [2024-12-02 13:34:59,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:34:59,405 INFO L225 Difference]: With dead ends: 13996 [2024-12-02 13:34:59,405 INFO L226 Difference]: Without dead ends: 7518 [2024-12-02 13:34:59,408 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:34:59,408 INFO L435 NwaCegarLoop]: 9914 mSDtfsCounter, 0 mSDsluCounter, 19818 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 29732 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:34:59,408 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 29732 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:34:59,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7518 states. [2024-12-02 13:34:59,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7518 to 7516. [2024-12-02 13:34:59,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7516 states, 7515 states have (on average 1.4896872920825017) internal successors, (11195), 7515 states have internal predecessors, (11195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:34:59,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7516 states to 7516 states and 11195 transitions. [2024-12-02 13:34:59,461 INFO L78 Accepts]: Start accepts. Automaton has 7516 states and 11195 transitions. Word has length 3722 [2024-12-02 13:34:59,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:34:59,463 INFO L471 AbstractCegarLoop]: Abstraction has 7516 states and 11195 transitions. [2024-12-02 13:34:59,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 662.2) internal successors, (3311), 5 states have internal predecessors, (3311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:34:59,463 INFO L276 IsEmpty]: Start isEmpty. Operand 7516 states and 11195 transitions. [2024-12-02 13:34:59,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3724 [2024-12-02 13:34:59,550 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:34:59,550 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:34:59,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2024-12-02 13:34:59,551 INFO L396 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:34:59,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:34:59,551 INFO L85 PathProgramCache]: Analyzing trace with hash 439002213, now seen corresponding path program 1 times [2024-12-02 13:34:59,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:34:59,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827815260] [2024-12-02 13:34:59,552 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:34:59,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:35:03,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:35:11,222 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 410 trivial. 0 not checked. [2024-12-02 13:35:11,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:35:11,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827815260] [2024-12-02 13:35:11,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827815260] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:35:11,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:35:11,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:35:11,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403686729] [2024-12-02 13:35:11,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:35:11,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:35:11,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:35:11,225 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:35:11,225 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:35:11,226 INFO L87 Difference]: Start difference. First operand 7516 states and 11195 transitions. Second operand has 5 states, 5 states have (on average 662.8) internal successors, (3314), 5 states have internal predecessors, (3314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:35:11,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:35:11,324 INFO L93 Difference]: Finished difference Result 14004 states and 20849 transitions. [2024-12-02 13:35:11,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:35:11,325 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 662.8) internal successors, (3314), 5 states have internal predecessors, (3314), 0 states have call successors, (0), 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 3723 [2024-12-02 13:35:11,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:35:11,332 INFO L225 Difference]: With dead ends: 14004 [2024-12-02 13:35:11,333 INFO L226 Difference]: Without dead ends: 7520 [2024-12-02 13:35:11,337 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:35:11,337 INFO L435 NwaCegarLoop]: 9914 mSDtfsCounter, 0 mSDsluCounter, 19818 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 29732 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:35:11,338 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 29732 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:35:11,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7520 states. [2024-12-02 13:35:11,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7520 to 7518. [2024-12-02 13:35:11,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7518 states, 7517 states have (on average 1.4895570041239856) internal successors, (11197), 7517 states have internal predecessors, (11197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:35:11,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7518 states to 7518 states and 11197 transitions. [2024-12-02 13:35:11,398 INFO L78 Accepts]: Start accepts. Automaton has 7518 states and 11197 transitions. Word has length 3723 [2024-12-02 13:35:11,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:35:11,400 INFO L471 AbstractCegarLoop]: Abstraction has 7518 states and 11197 transitions. [2024-12-02 13:35:11,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 662.8) internal successors, (3314), 5 states have internal predecessors, (3314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:35:11,401 INFO L276 IsEmpty]: Start isEmpty. Operand 7518 states and 11197 transitions. [2024-12-02 13:35:11,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3725 [2024-12-02 13:35:11,528 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:35:11,529 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:35:11,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2024-12-02 13:35:11,529 INFO L396 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:35:11,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:35:11,530 INFO L85 PathProgramCache]: Analyzing trace with hash -583755437, now seen corresponding path program 1 times [2024-12-02 13:35:11,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:35:11,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449529018] [2024-12-02 13:35:11,530 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:35:11,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:35:17,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:35:24,430 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked. [2024-12-02 13:35:24,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:35:24,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449529018] [2024-12-02 13:35:24,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449529018] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:35:24,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:35:24,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:35:24,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095152884] [2024-12-02 13:35:24,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:35:24,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:35:24,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:35:24,433 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:35:24,433 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:35:24,434 INFO L87 Difference]: Start difference. First operand 7518 states and 11197 transitions. Second operand has 4 states, 4 states have (on average 829.25) internal successors, (3317), 4 states have internal predecessors, (3317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:35:24,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:35:24,526 INFO L93 Difference]: Finished difference Result 14012 states and 20859 transitions. [2024-12-02 13:35:24,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:35:24,527 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 829.25) internal successors, (3317), 4 states have internal predecessors, (3317), 0 states have call successors, (0), 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 3724 [2024-12-02 13:35:24,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:35:24,534 INFO L225 Difference]: With dead ends: 14012 [2024-12-02 13:35:24,534 INFO L226 Difference]: Without dead ends: 7522 [2024-12-02 13:35:24,538 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:35:24,538 INFO L435 NwaCegarLoop]: 9914 mSDtfsCounter, 0 mSDsluCounter, 19818 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 29732 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:35:24,538 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 29732 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:35:24,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7522 states. [2024-12-02 13:35:24,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7522 to 7520. [2024-12-02 13:35:24,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7520 states, 7519 states have (on average 1.4894267854767922) internal successors, (11199), 7519 states have internal predecessors, (11199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:35:24,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7520 states to 7520 states and 11199 transitions. [2024-12-02 13:35:24,601 INFO L78 Accepts]: Start accepts. Automaton has 7520 states and 11199 transitions. Word has length 3724 [2024-12-02 13:35:24,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:35:24,603 INFO L471 AbstractCegarLoop]: Abstraction has 7520 states and 11199 transitions. [2024-12-02 13:35:24,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 829.25) internal successors, (3317), 4 states have internal predecessors, (3317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:35:24,603 INFO L276 IsEmpty]: Start isEmpty. Operand 7520 states and 11199 transitions. [2024-12-02 13:35:24,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3726 [2024-12-02 13:35:24,660 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:35:24,661 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:35:24,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2024-12-02 13:35:24,661 INFO L396 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:35:24,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:35:24,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1442196436, now seen corresponding path program 1 times [2024-12-02 13:35:24,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:35:24,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942475844] [2024-12-02 13:35:24,662 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:35:24,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:35:28,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:35:35,461 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2024-12-02 13:35:35,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:35:35,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942475844] [2024-12-02 13:35:35,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942475844] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:35:35,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:35:35,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:35:35,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040132063] [2024-12-02 13:35:35,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:35:35,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:35:35,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:35:35,465 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:35:35,465 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:35:35,465 INFO L87 Difference]: Start difference. First operand 7520 states and 11199 transitions. Second operand has 5 states, 5 states have (on average 664.0) internal successors, (3320), 5 states have internal predecessors, (3320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:35:35,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:35:35,554 INFO L93 Difference]: Finished difference Result 14020 states and 20869 transitions. [2024-12-02 13:35:35,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:35:35,555 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 664.0) internal successors, (3320), 5 states have internal predecessors, (3320), 0 states have call successors, (0), 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 3725 [2024-12-02 13:35:35,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:35:35,562 INFO L225 Difference]: With dead ends: 14020 [2024-12-02 13:35:35,562 INFO L226 Difference]: Without dead ends: 7524 [2024-12-02 13:35:35,566 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:35:35,566 INFO L435 NwaCegarLoop]: 9914 mSDtfsCounter, 0 mSDsluCounter, 19818 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 29732 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:35:35,566 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 29732 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:35:35,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7524 states. [2024-12-02 13:35:35,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7524 to 7522. [2024-12-02 13:35:35,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7522 states, 7521 states have (on average 1.489296636085627) internal successors, (11201), 7521 states have internal predecessors, (11201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:35:35,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7522 states to 7522 states and 11201 transitions. [2024-12-02 13:35:35,620 INFO L78 Accepts]: Start accepts. Automaton has 7522 states and 11201 transitions. Word has length 3725 [2024-12-02 13:35:35,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:35:35,677 INFO L471 AbstractCegarLoop]: Abstraction has 7522 states and 11201 transitions. [2024-12-02 13:35:35,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 664.0) internal successors, (3320), 5 states have internal predecessors, (3320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:35:35,677 INFO L276 IsEmpty]: Start isEmpty. Operand 7522 states and 11201 transitions. [2024-12-02 13:35:35,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3727 [2024-12-02 13:35:35,731 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:35:35,732 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:35:35,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2024-12-02 13:35:35,732 INFO L396 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:35:35,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:35:35,733 INFO L85 PathProgramCache]: Analyzing trace with hash -2019733236, now seen corresponding path program 1 times [2024-12-02 13:35:35,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:35:35,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317940754] [2024-12-02 13:35:35,733 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:35:35,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:35:40,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:35:47,669 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked. [2024-12-02 13:35:47,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:35:47,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317940754] [2024-12-02 13:35:47,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317940754] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:35:47,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:35:47,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:35:47,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425693524] [2024-12-02 13:35:47,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:35:47,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:35:47,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:35:47,673 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:35:47,673 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:35:47,674 INFO L87 Difference]: Start difference. First operand 7522 states and 11201 transitions. Second operand has 5 states, 5 states have (on average 664.6) internal successors, (3323), 5 states have internal predecessors, (3323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:35:47,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:35:47,782 INFO L93 Difference]: Finished difference Result 14028 states and 20879 transitions. [2024-12-02 13:35:47,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:35:47,783 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 664.6) internal successors, (3323), 5 states have internal predecessors, (3323), 0 states have call successors, (0), 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 3726 [2024-12-02 13:35:47,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:35:47,789 INFO L225 Difference]: With dead ends: 14028 [2024-12-02 13:35:47,790 INFO L226 Difference]: Without dead ends: 7526 [2024-12-02 13:35:47,793 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:35:47,793 INFO L435 NwaCegarLoop]: 9914 mSDtfsCounter, 0 mSDsluCounter, 29726 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 39640 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:35:47,793 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 39640 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:35:47,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7526 states. [2024-12-02 13:35:47,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7526 to 7524. [2024-12-02 13:35:47,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7524 states, 7523 states have (on average 1.4891665558952545) internal successors, (11203), 7523 states have internal predecessors, (11203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:35:47,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7524 states to 7524 states and 11203 transitions. [2024-12-02 13:35:47,851 INFO L78 Accepts]: Start accepts. Automaton has 7524 states and 11203 transitions. Word has length 3726 [2024-12-02 13:35:47,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:35:47,852 INFO L471 AbstractCegarLoop]: Abstraction has 7524 states and 11203 transitions. [2024-12-02 13:35:47,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 664.6) internal successors, (3323), 5 states have internal predecessors, (3323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:35:47,853 INFO L276 IsEmpty]: Start isEmpty. Operand 7524 states and 11203 transitions. [2024-12-02 13:35:47,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3728 [2024-12-02 13:35:47,907 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:35:47,908 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:35:47,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2024-12-02 13:35:47,908 INFO L396 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:35:47,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:35:47,909 INFO L85 PathProgramCache]: Analyzing trace with hash -751820557, now seen corresponding path program 1 times [2024-12-02 13:35:47,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:35:47,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961177389] [2024-12-02 13:35:47,909 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:35:47,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:35:51,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat