./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62737db3-5ed7-4832-8af3-fef93554d119/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62737db3-5ed7-4832-8af3-fef93554d119/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62737db3-5ed7-4832-8af3-fef93554d119/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62737db3-5ed7-4832-8af3-fef93554d119/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62737db3-5ed7-4832-8af3-fef93554d119/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62737db3-5ed7-4832-8af3-fef93554d119/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 98483d599bfd37f8d33acd041bf4877da740e2d354bd7034f19ab1a0f6b494a4 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:33:06,985 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:33:07,103 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62737db3-5ed7-4832-8af3-fef93554d119/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 00:33:07,112 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:33:07,113 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:33:07,153 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:33:07,154 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:33:07,155 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:33:07,156 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:33:07,156 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:33:07,156 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:33:07,157 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:33:07,158 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:33:07,158 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:33:07,158 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:33:07,158 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:33:07,158 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:33:07,159 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:33:07,159 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:33:07,160 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:33:07,160 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:33:07,160 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:33:07,160 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:33:07,160 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:33:07,160 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:33:07,160 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:33:07,161 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:33:07,161 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:33:07,161 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:33:07,161 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:33:07,161 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:33:07,161 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:33:07,161 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:33:07,161 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:33:07,162 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:33:07,162 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:33:07,162 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:33:07,162 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:33:07,162 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:33:07,162 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:33:07,162 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:33:07,162 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:33:07,162 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:33:07,162 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:33:07,162 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:33:07,163 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:33:07,163 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:33:07,163 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:33:07,163 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_62737db3-5ed7-4832-8af3-fef93554d119/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 98483d599bfd37f8d33acd041bf4877da740e2d354bd7034f19ab1a0f6b494a4 [2024-11-24 00:33:07,534 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:33:07,550 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:33:07,553 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:33:07,554 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:33:07,558 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:33:07,560 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62737db3-5ed7-4832-8af3-fef93554d119/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-24 00:33:10,839 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62737db3-5ed7-4832-8af3-fef93554d119/bin/uautomizer-verify-LYvppIcaGC/data/00bb6f7b1/cef1a28f5f0b4700bf0a910aaec9dc83/FLAG8f97389a0 [2024-11-24 00:33:11,256 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:33:11,257 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62737db3-5ed7-4832-8af3-fef93554d119/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-24 00:33:11,273 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62737db3-5ed7-4832-8af3-fef93554d119/bin/uautomizer-verify-LYvppIcaGC/data/00bb6f7b1/cef1a28f5f0b4700bf0a910aaec9dc83/FLAG8f97389a0 [2024-11-24 00:33:11,428 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62737db3-5ed7-4832-8af3-fef93554d119/bin/uautomizer-verify-LYvppIcaGC/data/00bb6f7b1/cef1a28f5f0b4700bf0a910aaec9dc83 [2024-11-24 00:33:11,431 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:33:11,432 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:33:11,434 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:33:11,434 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:33:11,443 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:33:11,447 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:33:11" (1/1) ... [2024-11-24 00:33:11,448 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@343e97c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:11, skipping insertion in model container [2024-11-24 00:33:11,448 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:33:11" (1/1) ... [2024-11-24 00:33:11,564 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:33:12,117 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_62737db3-5ed7-4832-8af3-fef93554d119/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[26790,26803] [2024-11-24 00:33:12,284 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:33:12,303 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:33:12,606 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_62737db3-5ed7-4832-8af3-fef93554d119/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[26790,26803] [2024-11-24 00:33:12,797 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:33:12,823 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:33:12,824 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:12 WrapperNode [2024-11-24 00:33:12,824 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:33:12,825 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:33:12,825 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:33:12,825 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:33:12,832 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:12" (1/1) ... [2024-11-24 00:33:12,860 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:12" (1/1) ... [2024-11-24 00:33:12,972 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2530 [2024-11-24 00:33:12,973 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:33:12,974 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:33:12,974 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:33:12,974 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:33:12,984 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:12" (1/1) ... [2024-11-24 00:33:12,984 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:12" (1/1) ... [2024-11-24 00:33:12,995 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:12" (1/1) ... [2024-11-24 00:33:13,044 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]. [2024-11-24 00:33:13,045 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:12" (1/1) ... [2024-11-24 00:33:13,046 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:12" (1/1) ... [2024-11-24 00:33:13,089 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:12" (1/1) ... [2024-11-24 00:33:13,095 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:12" (1/1) ... [2024-11-24 00:33:13,122 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:12" (1/1) ... [2024-11-24 00:33:13,137 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:12" (1/1) ... [2024-11-24 00:33:13,148 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:12" (1/1) ... [2024-11-24 00:33:13,162 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:33:13,163 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:33:13,164 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:33:13,164 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:33:13,165 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:12" (1/1) ... [2024-11-24 00:33:13,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:33:13,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62737db3-5ed7-4832-8af3-fef93554d119/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:33:13,239 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62737db3-5ed7-4832-8af3-fef93554d119/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:33:13,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62737db3-5ed7-4832-8af3-fef93554d119/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:33:13,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:33:13,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 00:33:13,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:33:13,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:33:13,510 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:33:13,511 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:33:16,673 INFO L? ?]: Removed 179 outVars from TransFormulas that were not future-live. [2024-11-24 00:33:16,674 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:33:16,727 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:33:16,727 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-24 00:33:16,727 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:33:16 BoogieIcfgContainer [2024-11-24 00:33:16,728 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:33:16,730 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:33:16,734 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:33:16,743 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:33:16,743 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:33:11" (1/3) ... [2024-11-24 00:33:16,744 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21354374 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:33:16, skipping insertion in model container [2024-11-24 00:33:16,745 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:12" (2/3) ... [2024-11-24 00:33:16,745 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21354374 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:33:16, skipping insertion in model container [2024-11-24 00:33:16,747 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:33:16" (3/3) ... [2024-11-24 00:33:16,749 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.4.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-24 00:33:16,769 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:33:16,774 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_opt-floodmax.4.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c that has 1 procedures, 647 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-24 00:33:16,903 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:33:16,924 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;@46a9e1aa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:33:16,925 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 00:33:16,935 INFO L276 IsEmpty]: Start isEmpty. Operand has 647 states, 645 states have (on average 1.7829457364341086) internal successors, (1150), 646 states have internal predecessors, (1150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:33:16,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2024-11-24 00:33:16,995 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:33:16,997 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] [2024-11-24 00:33:16,998 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:33:17,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:33:17,006 INFO L85 PathProgramCache]: Analyzing trace with hash -752065630, now seen corresponding path program 1 times [2024-11-24 00:33:17,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:33:17,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925465871] [2024-11-24 00:33:17,018 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:33:17,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:33:17,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:33:18,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:33:18,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:33:18,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925465871] [2024-11-24 00:33:18,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925465871] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:33:18,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:33:18,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:33:18,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135844420] [2024-11-24 00:33:18,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:33:18,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:33:18,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:33:18,675 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:33:18,676 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:33:18,681 INFO L87 Difference]: Start difference. First operand has 647 states, 645 states have (on average 1.7829457364341086) internal successors, (1150), 646 states have internal predecessors, (1150), 0 states have call successors, (0), 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 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:33:19,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:33:19,106 INFO L93 Difference]: Finished difference Result 1200 states and 2109 transitions. [2024-11-24 00:33:19,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:33:19,117 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 250 [2024-11-24 00:33:19,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:33:19,153 INFO L225 Difference]: With dead ends: 1200 [2024-11-24 00:33:19,154 INFO L226 Difference]: Without dead ends: 995 [2024-11-24 00:33:19,163 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 [2024-11-24 00:33:19,167 INFO L435 NwaCegarLoop]: 1104 mSDtfsCounter, 679 mSDsluCounter, 887 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 679 SdHoareTripleChecker+Valid, 1991 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:33:19,168 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [679 Valid, 1991 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:33:19,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 995 states. [2024-11-24 00:33:19,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 995 to 993. [2024-11-24 00:33:19,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 993 states, 992 states have (on average 1.5766129032258065) internal successors, (1564), 992 states have internal predecessors, (1564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:33:19,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 993 states to 993 states and 1564 transitions. [2024-11-24 00:33:19,326 INFO L78 Accepts]: Start accepts. Automaton has 993 states and 1564 transitions. Word has length 250 [2024-11-24 00:33:19,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:33:19,331 INFO L471 AbstractCegarLoop]: Abstraction has 993 states and 1564 transitions. [2024-11-24 00:33:19,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:33:19,332 INFO L276 IsEmpty]: Start isEmpty. Operand 993 states and 1564 transitions. [2024-11-24 00:33:19,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2024-11-24 00:33:19,342 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:33:19,346 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] [2024-11-24 00:33:19,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 00:33:19,347 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:33:19,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:33:19,348 INFO L85 PathProgramCache]: Analyzing trace with hash -734902992, now seen corresponding path program 1 times [2024-11-24 00:33:19,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:33:19,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144323483] [2024-11-24 00:33:19,348 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:33:19,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:33:20,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:33:21,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:33:21,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:33:21,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144323483] [2024-11-24 00:33:21,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144323483] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:33:21,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:33:21,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:33:21,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713275037] [2024-11-24 00:33:21,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:33:21,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:33:21,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:33:21,461 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:33:21,461 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:33:21,461 INFO L87 Difference]: Start difference. First operand 993 states and 1564 transitions. Second operand has 4 states, 4 states have (on average 62.5) internal successors, (250), 4 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:33:21,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:33:21,844 INFO L93 Difference]: Finished difference Result 4845 states and 7613 transitions. [2024-11-24 00:33:21,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:33:21,845 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 62.5) internal successors, (250), 4 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 250 [2024-11-24 00:33:21,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:33:21,872 INFO L225 Difference]: With dead ends: 4845 [2024-11-24 00:33:21,872 INFO L226 Difference]: Without dead ends: 3863 [2024-11-24 00:33:21,875 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:33:21,876 INFO L435 NwaCegarLoop]: 1441 mSDtfsCounter, 3270 mSDsluCounter, 2372 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3270 SdHoareTripleChecker+Valid, 3813 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:33:21,877 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3270 Valid, 3813 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:33:21,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3863 states. [2024-11-24 00:33:22,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3863 to 1944. [2024-11-24 00:33:22,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1944 states, 1943 states have (on average 1.5656201749871332) internal successors, (3042), 1943 states have internal predecessors, (3042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:33:22,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1944 states to 1944 states and 3042 transitions. [2024-11-24 00:33:22,042 INFO L78 Accepts]: Start accepts. Automaton has 1944 states and 3042 transitions. Word has length 250 [2024-11-24 00:33:22,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:33:22,044 INFO L471 AbstractCegarLoop]: Abstraction has 1944 states and 3042 transitions. [2024-11-24 00:33:22,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.5) internal successors, (250), 4 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:33:22,044 INFO L276 IsEmpty]: Start isEmpty. Operand 1944 states and 3042 transitions. [2024-11-24 00:33:22,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2024-11-24 00:33:22,052 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:33:22,052 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] [2024-11-24 00:33:22,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 00:33:22,053 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:33:22,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:33:22,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1212040729, now seen corresponding path program 1 times [2024-11-24 00:33:22,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:33:22,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212893940] [2024-11-24 00:33:22,056 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:33:22,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:33:22,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:33:22,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:33:22,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:33:22,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212893940] [2024-11-24 00:33:22,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212893940] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:33:22,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:33:22,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:33:22,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623135344] [2024-11-24 00:33:22,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:33:22,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:33:22,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:33:22,449 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:33:22,449 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:33:22,450 INFO L87 Difference]: Start difference. First operand 1944 states and 3042 transitions. Second operand has 3 states, 3 states have (on average 84.0) internal successors, (252), 3 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:33:22,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:33:22,649 INFO L93 Difference]: Finished difference Result 5635 states and 8782 transitions. [2024-11-24 00:33:22,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:33:22,652 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 84.0) internal successors, (252), 3 states have internal predecessors, (252), 0 states have call successors, (0), 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 252 [2024-11-24 00:33:22,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:33:22,669 INFO L225 Difference]: With dead ends: 5635 [2024-11-24 00:33:22,670 INFO L226 Difference]: Without dead ends: 3816 [2024-11-24 00:33:22,674 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 [2024-11-24 00:33:22,677 INFO L435 NwaCegarLoop]: 1963 mSDtfsCounter, 876 mSDsluCounter, 963 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 876 SdHoareTripleChecker+Valid, 2926 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:33:22,678 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [876 Valid, 2926 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:33:22,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3816 states. [2024-11-24 00:33:22,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3816 to 3814. [2024-11-24 00:33:22,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3814 states, 3813 states have (on average 1.5565171780750064) internal successors, (5935), 3813 states have internal predecessors, (5935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:33:22,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3814 states to 3814 states and 5935 transitions. [2024-11-24 00:33:22,868 INFO L78 Accepts]: Start accepts. Automaton has 3814 states and 5935 transitions. Word has length 252 [2024-11-24 00:33:22,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:33:22,868 INFO L471 AbstractCegarLoop]: Abstraction has 3814 states and 5935 transitions. [2024-11-24 00:33:22,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.0) internal successors, (252), 3 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:33:22,869 INFO L276 IsEmpty]: Start isEmpty. Operand 3814 states and 5935 transitions. [2024-11-24 00:33:22,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2024-11-24 00:33:22,882 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:33:22,882 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] [2024-11-24 00:33:22,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 00:33:22,884 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:33:22,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:33:22,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1552055970, now seen corresponding path program 1 times [2024-11-24 00:33:22,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:33:22,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141145830] [2024-11-24 00:33:22,887 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:33:22,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:33:22,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:33:23,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:33:23,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:33:23,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141145830] [2024-11-24 00:33:23,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141145830] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:33:23,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:33:23,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:33:23,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101931663] [2024-11-24 00:33:23,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:33:23,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:33:23,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:33:23,173 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:33:23,173 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:33:23,174 INFO L87 Difference]: Start difference. First operand 3814 states and 5935 transitions. Second operand has 3 states, 3 states have (on average 84.0) internal successors, (252), 3 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:33:23,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:33:23,330 INFO L93 Difference]: Finished difference Result 11375 states and 17689 transitions. [2024-11-24 00:33:23,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:33:23,331 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 84.0) internal successors, (252), 3 states have internal predecessors, (252), 0 states have call successors, (0), 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 252 [2024-11-24 00:33:23,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:33:23,359 INFO L225 Difference]: With dead ends: 11375 [2024-11-24 00:33:23,359 INFO L226 Difference]: Without dead ends: 7599 [2024-11-24 00:33:23,364 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 [2024-11-24 00:33:23,366 INFO L435 NwaCegarLoop]: 2004 mSDtfsCounter, 999 mSDsluCounter, 1000 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 999 SdHoareTripleChecker+Valid, 3004 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:33:23,366 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [999 Valid, 3004 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:33:23,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7599 states. [2024-11-24 00:33:23,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7599 to 3833. [2024-11-24 00:33:23,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3833 states, 3832 states have (on average 1.556106471816284) internal successors, (5963), 3832 states have internal predecessors, (5963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:33:23,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3833 states to 3833 states and 5963 transitions. [2024-11-24 00:33:23,614 INFO L78 Accepts]: Start accepts. Automaton has 3833 states and 5963 transitions. Word has length 252 [2024-11-24 00:33:23,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:33:23,614 INFO L471 AbstractCegarLoop]: Abstraction has 3833 states and 5963 transitions. [2024-11-24 00:33:23,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.0) internal successors, (252), 3 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:33:23,614 INFO L276 IsEmpty]: Start isEmpty. Operand 3833 states and 5963 transitions. [2024-11-24 00:33:23,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2024-11-24 00:33:23,623 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:33:23,624 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:33:23,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 00:33:23,624 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:33:23,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:33:23,625 INFO L85 PathProgramCache]: Analyzing trace with hash 559793920, now seen corresponding path program 1 times [2024-11-24 00:33:23,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:33:23,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657292892] [2024-11-24 00:33:23,626 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:33:23,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:33:23,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:33:23,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:33:23,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:33:23,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657292892] [2024-11-24 00:33:23,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657292892] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:33:23,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:33:23,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:33:23,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872293505] [2024-11-24 00:33:23,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:33:23,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:33:23,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:33:23,867 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:33:23,868 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:33:23,868 INFO L87 Difference]: Start difference. First operand 3833 states and 5963 transitions. Second operand has 3 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:33:24,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:33:24,006 INFO L93 Difference]: Finished difference Result 7628 states and 11859 transitions. [2024-11-24 00:33:24,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:33:24,007 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 0 states have call successors, (0), 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 253 [2024-11-24 00:33:24,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:33:24,022 INFO L225 Difference]: With dead ends: 7628 [2024-11-24 00:33:24,022 INFO L226 Difference]: Without dead ends: 3851 [2024-11-24 00:33:24,025 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:33:24,026 INFO L435 NwaCegarLoop]: 1023 mSDtfsCounter, 5 mSDsluCounter, 1008 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2031 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:33:24,028 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2031 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:33:24,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3851 states. [2024-11-24 00:33:24,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3851 to 3851. [2024-11-24 00:33:24,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3851 states, 3850 states have (on average 1.5542857142857143) internal successors, (5984), 3850 states have internal predecessors, (5984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:33:24,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3851 states to 3851 states and 5984 transitions. [2024-11-24 00:33:24,165 INFO L78 Accepts]: Start accepts. Automaton has 3851 states and 5984 transitions. Word has length 253 [2024-11-24 00:33:24,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:33:24,166 INFO L471 AbstractCegarLoop]: Abstraction has 3851 states and 5984 transitions. [2024-11-24 00:33:24,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:33:24,166 INFO L276 IsEmpty]: Start isEmpty. Operand 3851 states and 5984 transitions. [2024-11-24 00:33:24,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2024-11-24 00:33:24,174 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:33:24,174 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] [2024-11-24 00:33:24,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 00:33:24,174 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:33:24,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:33:24,175 INFO L85 PathProgramCache]: Analyzing trace with hash -1276481708, now seen corresponding path program 1 times [2024-11-24 00:33:24,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:33:24,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787488740] [2024-11-24 00:33:24,176 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:33:24,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:33:24,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:33:24,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:33:24,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:33:24,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787488740] [2024-11-24 00:33:24,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787488740] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:33:24,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:33:24,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:33:24,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436044235] [2024-11-24 00:33:24,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:33:24,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:33:24,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:33:24,479 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:33:24,480 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:33:24,482 INFO L87 Difference]: Start difference. First operand 3851 states and 5984 transitions. Second operand has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:33:24,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:33:24,695 INFO L93 Difference]: Finished difference Result 8637 states and 13520 transitions. [2024-11-24 00:33:24,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:33:24,696 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 0 states have call successors, (0), 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 254 [2024-11-24 00:33:24,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:33:24,727 INFO L225 Difference]: With dead ends: 8637 [2024-11-24 00:33:24,728 INFO L226 Difference]: Without dead ends: 5601 [2024-11-24 00:33:24,731 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 [2024-11-24 00:33:24,732 INFO L435 NwaCegarLoop]: 1370 mSDtfsCounter, 547 mSDsluCounter, 799 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 547 SdHoareTripleChecker+Valid, 2169 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:33:24,736 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [547 Valid, 2169 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:33:24,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5601 states. [2024-11-24 00:33:24,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5601 to 4867. [2024-11-24 00:33:24,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4867 states, 4866 states have (on average 1.576243321002877) internal successors, (7670), 4866 states have internal predecessors, (7670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:33:24,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4867 states to 4867 states and 7670 transitions. [2024-11-24 00:33:24,920 INFO L78 Accepts]: Start accepts. Automaton has 4867 states and 7670 transitions. Word has length 254 [2024-11-24 00:33:24,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:33:24,921 INFO L471 AbstractCegarLoop]: Abstraction has 4867 states and 7670 transitions. [2024-11-24 00:33:24,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:33:24,921 INFO L276 IsEmpty]: Start isEmpty. Operand 4867 states and 7670 transitions. [2024-11-24 00:33:24,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2024-11-24 00:33:24,930 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:33:24,932 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] [2024-11-24 00:33:24,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 00:33:24,933 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:33:24,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:33:24,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1741200748, now seen corresponding path program 1 times [2024-11-24 00:33:24,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:33:24,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323081245] [2024-11-24 00:33:24,934 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:33:24,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:33:25,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:33:25,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:33:25,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:33:25,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323081245] [2024-11-24 00:33:25,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323081245] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:33:25,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:33:25,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:33:25,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019948396] [2024-11-24 00:33:25,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:33:25,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:33:25,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:33:25,366 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:33:25,366 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:33:25,367 INFO L87 Difference]: Start difference. First operand 4867 states and 7670 transitions. Second operand has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:33:25,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:33:25,584 INFO L93 Difference]: Finished difference Result 14074 states and 22115 transitions. [2024-11-24 00:33:25,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:33:25,585 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 0 states have call successors, (0), 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 254 [2024-11-24 00:33:25,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:33:25,619 INFO L225 Difference]: With dead ends: 14074 [2024-11-24 00:33:25,619 INFO L226 Difference]: Without dead ends: 9448 [2024-11-24 00:33:25,627 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 [2024-11-24 00:33:25,628 INFO L435 NwaCegarLoop]: 1964 mSDtfsCounter, 867 mSDsluCounter, 960 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 867 SdHoareTripleChecker+Valid, 2924 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:33:25,628 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [867 Valid, 2924 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:33:25,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9448 states. [2024-11-24 00:33:25,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9448 to 9446. [2024-11-24 00:33:25,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9446 states, 9445 states have (on average 1.5656961355214398) internal successors, (14788), 9445 states have internal predecessors, (14788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:33:26,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9446 states to 9446 states and 14788 transitions. [2024-11-24 00:33:26,022 INFO L78 Accepts]: Start accepts. Automaton has 9446 states and 14788 transitions. Word has length 254 [2024-11-24 00:33:26,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:33:26,022 INFO L471 AbstractCegarLoop]: Abstraction has 9446 states and 14788 transitions. [2024-11-24 00:33:26,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:33:26,023 INFO L276 IsEmpty]: Start isEmpty. Operand 9446 states and 14788 transitions. [2024-11-24 00:33:26,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2024-11-24 00:33:26,040 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:33:26,041 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] [2024-11-24 00:33:26,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 00:33:26,041 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:33:26,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:33:26,042 INFO L85 PathProgramCache]: Analyzing trace with hash -643816655, now seen corresponding path program 1 times [2024-11-24 00:33:26,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:33:26,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620484020] [2024-11-24 00:33:26,042 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:33:26,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:33:26,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:33:27,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:33:27,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:33:27,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620484020] [2024-11-24 00:33:27,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620484020] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:33:27,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:33:27,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:33:27,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788325001] [2024-11-24 00:33:27,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:33:27,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:33:27,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:33:27,318 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:33:27,318 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:33:27,319 INFO L87 Difference]: Start difference. First operand 9446 states and 14788 transitions. Second operand has 5 states, 5 states have (on average 50.8) internal successors, (254), 5 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:33:27,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:33:27,922 INFO L93 Difference]: Finished difference Result 45936 states and 71830 transitions. [2024-11-24 00:33:27,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:33:27,928 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 50.8) internal successors, (254), 5 states have internal predecessors, (254), 0 states have call successors, (0), 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 254 [2024-11-24 00:33:27,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:33:28,038 INFO L225 Difference]: With dead ends: 45936 [2024-11-24 00:33:28,038 INFO L226 Difference]: Without dead ends: 36545 [2024-11-24 00:33:28,057 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:33:28,059 INFO L435 NwaCegarLoop]: 1638 mSDtfsCounter, 3686 mSDsluCounter, 3518 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3686 SdHoareTripleChecker+Valid, 5156 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:33:28,059 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3686 Valid, 5156 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:33:28,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36545 states. [2024-11-24 00:33:28,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36545 to 18319. [2024-11-24 00:33:28,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18319 states, 18318 states have (on average 1.5543727481166065) internal successors, (28473), 18318 states have internal predecessors, (28473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:33:29,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18319 states to 18319 states and 28473 transitions. [2024-11-24 00:33:29,059 INFO L78 Accepts]: Start accepts. Automaton has 18319 states and 28473 transitions. Word has length 254 [2024-11-24 00:33:29,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:33:29,060 INFO L471 AbstractCegarLoop]: Abstraction has 18319 states and 28473 transitions. [2024-11-24 00:33:29,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 50.8) internal successors, (254), 5 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:33:29,060 INFO L276 IsEmpty]: Start isEmpty. Operand 18319 states and 28473 transitions. [2024-11-24 00:33:29,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2024-11-24 00:33:29,082 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:33:29,082 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] [2024-11-24 00:33:29,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 00:33:29,083 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:33:29,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:33:29,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1048435692, now seen corresponding path program 1 times [2024-11-24 00:33:29,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:33:29,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373443742] [2024-11-24 00:33:29,085 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:33:29,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:33:29,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:33:29,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:33:29,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:33:29,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373443742] [2024-11-24 00:33:29,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373443742] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:33:29,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:33:29,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:33:29,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29906541] [2024-11-24 00:33:29,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:33:29,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:33:29,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:33:29,514 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:33:29,515 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:33:29,515 INFO L87 Difference]: Start difference. First operand 18319 states and 28473 transitions. Second operand has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:33:29,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:33:29,969 INFO L93 Difference]: Finished difference Result 53601 states and 83138 transitions. [2024-11-24 00:33:29,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:33:29,970 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 0 states have call successors, (0), 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 256 [2024-11-24 00:33:29,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:33:30,072 INFO L225 Difference]: With dead ends: 53601 [2024-11-24 00:33:30,073 INFO L226 Difference]: Without dead ends: 35799 [2024-11-24 00:33:30,104 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 [2024-11-24 00:33:30,105 INFO L435 NwaCegarLoop]: 1950 mSDtfsCounter, 854 mSDsluCounter, 960 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 854 SdHoareTripleChecker+Valid, 2910 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:33:30,106 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [854 Valid, 2910 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:33:30,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35799 states. [2024-11-24 00:33:31,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35799 to 35797. [2024-11-24 00:33:31,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35797 states, 35796 states have (on average 1.5441390099452452) internal successors, (55274), 35796 states have internal predecessors, (55274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:33:31,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35797 states to 35797 states and 55274 transitions. [2024-11-24 00:33:31,384 INFO L78 Accepts]: Start accepts. Automaton has 35797 states and 55274 transitions. Word has length 256 [2024-11-24 00:33:31,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:33:31,384 INFO L471 AbstractCegarLoop]: Abstraction has 35797 states and 55274 transitions. [2024-11-24 00:33:31,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:33:31,385 INFO L276 IsEmpty]: Start isEmpty. Operand 35797 states and 55274 transitions. [2024-11-24 00:33:31,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2024-11-24 00:33:31,417 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:33:31,417 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] [2024-11-24 00:33:31,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 00:33:31,418 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:33:31,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:33:31,418 INFO L85 PathProgramCache]: Analyzing trace with hash 342648817, now seen corresponding path program 1 times [2024-11-24 00:33:31,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:33:31,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310367858] [2024-11-24 00:33:31,419 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:33:31,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:33:31,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:33:32,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:33:32,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:33:32,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310367858] [2024-11-24 00:33:32,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310367858] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:33:32,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:33:32,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:33:32,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657336345] [2024-11-24 00:33:32,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:33:32,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:33:32,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:33:32,573 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:33:32,573 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:33:32,574 INFO L87 Difference]: Start difference. First operand 35797 states and 55274 transitions. Second operand has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:33:33,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:33:33,208 INFO L93 Difference]: Finished difference Result 104939 states and 161522 transitions. [2024-11-24 00:33:33,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:33:33,209 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 0 states have call successors, (0), 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 256 [2024-11-24 00:33:33,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:33:33,390 INFO L225 Difference]: With dead ends: 104939 [2024-11-24 00:33:33,390 INFO L226 Difference]: Without dead ends: 70601 [2024-11-24 00:33:33,427 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 [2024-11-24 00:33:33,428 INFO L435 NwaCegarLoop]: 1682 mSDtfsCounter, 962 mSDsluCounter, 2679 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 962 SdHoareTripleChecker+Valid, 4361 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:33:33,429 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [962 Valid, 4361 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:33:33,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70601 states. [2024-11-24 00:33:34,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70601 to 36647. [2024-11-24 00:33:34,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36647 states, 36646 states have (on average 1.5455984282049882) internal successors, (56640), 36646 states have internal predecessors, (56640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:33:35,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36647 states to 36647 states and 56640 transitions. [2024-11-24 00:33:35,085 INFO L78 Accepts]: Start accepts. Automaton has 36647 states and 56640 transitions. Word has length 256 [2024-11-24 00:33:35,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:33:35,085 INFO L471 AbstractCegarLoop]: Abstraction has 36647 states and 56640 transitions. [2024-11-24 00:33:35,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:33:35,086 INFO L276 IsEmpty]: Start isEmpty. Operand 36647 states and 56640 transitions. [2024-11-24 00:33:35,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2024-11-24 00:33:35,127 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:33:35,127 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] [2024-11-24 00:33:35,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 00:33:35,128 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:33:35,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:33:35,129 INFO L85 PathProgramCache]: Analyzing trace with hash -560581445, now seen corresponding path program 1 times [2024-11-24 00:33:35,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:33:35,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531289657] [2024-11-24 00:33:35,129 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:33:35,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:33:35,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:33:35,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:33:35,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:33:35,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531289657] [2024-11-24 00:33:35,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531289657] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:33:35,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:33:35,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:33:35,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885115117] [2024-11-24 00:33:35,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:33:35,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:33:35,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:33:35,389 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:33:35,389 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:33:35,390 INFO L87 Difference]: Start difference. First operand 36647 states and 56640 transitions. Second operand has 3 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:33:35,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:33:35,863 INFO L93 Difference]: Finished difference Result 105223 states and 161820 transitions. [2024-11-24 00:33:35,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:33:35,864 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 0 states have call successors, (0), 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 258 [2024-11-24 00:33:35,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:33:36,004 INFO L225 Difference]: With dead ends: 105223 [2024-11-24 00:33:36,004 INFO L226 Difference]: Without dead ends: 71005 [2024-11-24 00:33:36,035 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 [2024-11-24 00:33:36,036 INFO L435 NwaCegarLoop]: 1866 mSDtfsCounter, 864 mSDsluCounter, 996 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 864 SdHoareTripleChecker+Valid, 2862 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:33:36,037 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [864 Valid, 2862 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:33:36,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71005 states. [2024-11-24 00:33:37,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71005 to 37051. [2024-11-24 00:33:37,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37051 states, 37050 states have (on average 1.543697705802969) internal successors, (57194), 37050 states have internal predecessors, (57194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:33:37,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37051 states to 37051 states and 57194 transitions. [2024-11-24 00:33:37,264 INFO L78 Accepts]: Start accepts. Automaton has 37051 states and 57194 transitions. Word has length 258 [2024-11-24 00:33:37,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:33:37,264 INFO L471 AbstractCegarLoop]: Abstraction has 37051 states and 57194 transitions. [2024-11-24 00:33:37,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:33:37,264 INFO L276 IsEmpty]: Start isEmpty. Operand 37051 states and 57194 transitions. [2024-11-24 00:33:37,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2024-11-24 00:33:37,297 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:33:37,297 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] [2024-11-24 00:33:37,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 00:33:37,298 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:33:37,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:33:37,299 INFO L85 PathProgramCache]: Analyzing trace with hash -2147412842, now seen corresponding path program 1 times [2024-11-24 00:33:37,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:33:37,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007835408] [2024-11-24 00:33:37,299 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:33:37,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:33:37,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:33:37,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:33:37,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:33:37,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007835408] [2024-11-24 00:33:37,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007835408] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:33:37,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:33:37,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:33:37,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114209747] [2024-11-24 00:33:37,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:33:37,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:33:37,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:33:37,538 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:33:37,538 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:33:37,538 INFO L87 Difference]: Start difference. First operand 37051 states and 57194 transitions. Second operand has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:33:38,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:33:38,208 INFO L93 Difference]: Finished difference Result 105828 states and 162503 transitions. [2024-11-24 00:33:38,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:33:38,208 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 0 states have call successors, (0), 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 259 [2024-11-24 00:33:38,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:33:38,317 INFO L225 Difference]: With dead ends: 105828 [2024-11-24 00:33:38,317 INFO L226 Difference]: Without dead ends: 71536 [2024-11-24 00:33:38,346 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 [2024-11-24 00:33:38,348 INFO L435 NwaCegarLoop]: 1863 mSDtfsCounter, 862 mSDsluCounter, 960 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 862 SdHoareTripleChecker+Valid, 2823 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:33:38,348 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [862 Valid, 2823 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:33:38,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71536 states. [2024-11-24 00:33:39,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71536 to 71534. [2024-11-24 00:33:40,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71534 states, 71533 states have (on average 1.5299092726433954) internal successors, (109439), 71533 states have internal predecessors, (109439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:33:40,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71534 states to 71534 states and 109439 transitions. [2024-11-24 00:33:40,165 INFO L78 Accepts]: Start accepts. Automaton has 71534 states and 109439 transitions. Word has length 259 [2024-11-24 00:33:40,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:33:40,165 INFO L471 AbstractCegarLoop]: Abstraction has 71534 states and 109439 transitions. [2024-11-24 00:33:40,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:33:40,166 INFO L276 IsEmpty]: Start isEmpty. Operand 71534 states and 109439 transitions. [2024-11-24 00:33:40,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2024-11-24 00:33:40,208 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:33:40,208 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] [2024-11-24 00:33:40,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-24 00:33:40,208 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:33:40,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:33:40,209 INFO L85 PathProgramCache]: Analyzing trace with hash 10797995, now seen corresponding path program 1 times [2024-11-24 00:33:40,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:33:40,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503468810] [2024-11-24 00:33:40,210 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:33:40,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:33:40,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:33:40,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:33:40,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:33:40,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503468810] [2024-11-24 00:33:40,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503468810] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:33:40,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:33:40,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:33:40,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916949896] [2024-11-24 00:33:40,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:33:40,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:33:40,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:33:40,398 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:33:40,399 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:33:40,399 INFO L87 Difference]: Start difference. First operand 71534 states and 109439 transitions. Second operand has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:33:41,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:33:41,098 INFO L93 Difference]: Finished difference Result 139616 states and 212972 transitions. [2024-11-24 00:33:41,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:33:41,098 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 0 states have call successors, (0), 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 259 [2024-11-24 00:33:41,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:33:41,180 INFO L225 Difference]: With dead ends: 139616 [2024-11-24 00:33:41,181 INFO L226 Difference]: Without dead ends: 72506 [2024-11-24 00:33:41,215 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 [2024-11-24 00:33:41,217 INFO L435 NwaCegarLoop]: 1020 mSDtfsCounter, 5 mSDsluCounter, 1004 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2024 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:33:41,218 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2024 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:33:41,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72506 states. [2024-11-24 00:33:42,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72506 to 72506. [2024-11-24 00:33:42,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72506 states, 72505 states have (on average 1.5246534721743328) internal successors, (110545), 72505 states have internal predecessors, (110545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:33:43,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72506 states to 72506 states and 110545 transitions. [2024-11-24 00:33:43,166 INFO L78 Accepts]: Start accepts. Automaton has 72506 states and 110545 transitions. Word has length 259 [2024-11-24 00:33:43,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:33:43,167 INFO L471 AbstractCegarLoop]: Abstraction has 72506 states and 110545 transitions. [2024-11-24 00:33:43,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:33:43,167 INFO L276 IsEmpty]: Start isEmpty. Operand 72506 states and 110545 transitions. [2024-11-24 00:33:43,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2024-11-24 00:33:43,206 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:33:43,206 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] [2024-11-24 00:33:43,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-24 00:33:43,207 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:33:43,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:33:43,208 INFO L85 PathProgramCache]: Analyzing trace with hash -15991789, now seen corresponding path program 1 times [2024-11-24 00:33:43,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:33:43,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395518518] [2024-11-24 00:33:43,209 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:33:43,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:33:43,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:33:43,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:33:43,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:33:43,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395518518] [2024-11-24 00:33:43,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395518518] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:33:43,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:33:43,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:33:43,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742179663] [2024-11-24 00:33:43,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:33:43,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:33:43,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:33:43,416 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:33:43,416 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:33:43,416 INFO L87 Difference]: Start difference. First operand 72506 states and 110545 transitions. Second operand has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:33:43,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:33:43,909 INFO L93 Difference]: Finished difference Result 164446 states and 254323 transitions. [2024-11-24 00:33:43,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:33:43,909 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 0 states have call successors, (0), 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 260 [2024-11-24 00:33:43,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:33:44,050 INFO L225 Difference]: With dead ends: 164446 [2024-11-24 00:33:44,050 INFO L226 Difference]: Without dead ends: 108348 [2024-11-24 00:33:44,100 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 [2024-11-24 00:33:44,100 INFO L435 NwaCegarLoop]: 1319 mSDtfsCounter, 525 mSDsluCounter, 754 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 525 SdHoareTripleChecker+Valid, 2073 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:33:44,100 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [525 Valid, 2073 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:33:44,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108348 states. [2024-11-24 00:33:46,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108348 to 99514. [2024-11-24 00:33:46,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99514 states, 99513 states have (on average 1.5501190799192066) internal successors, (154257), 99513 states have internal predecessors, (154257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:33:46,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99514 states to 99514 states and 154257 transitions. [2024-11-24 00:33:46,554 INFO L78 Accepts]: Start accepts. Automaton has 99514 states and 154257 transitions. Word has length 260 [2024-11-24 00:33:46,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:33:46,554 INFO L471 AbstractCegarLoop]: Abstraction has 99514 states and 154257 transitions. [2024-11-24 00:33:46,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:33:46,555 INFO L276 IsEmpty]: Start isEmpty. Operand 99514 states and 154257 transitions. [2024-11-24 00:33:46,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2024-11-24 00:33:46,609 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:33:46,610 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] [2024-11-24 00:33:46,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-24 00:33:46,610 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:33:46,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:33:46,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1995978418, now seen corresponding path program 1 times [2024-11-24 00:33:46,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:33:46,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110212829] [2024-11-24 00:33:46,611 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:33:46,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:33:46,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:33:47,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:33:47,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:33:47,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110212829] [2024-11-24 00:33:47,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110212829] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:33:47,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:33:47,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:33:47,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622175288] [2024-11-24 00:33:47,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:33:47,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:33:47,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:33:47,839 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:33:47,840 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:33:47,840 INFO L87 Difference]: Start difference. First operand 99514 states and 154257 transitions. Second operand has 4 states, 4 states have (on average 65.0) internal successors, (260), 4 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:33:49,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:33:49,026 INFO L93 Difference]: Finished difference Result 290899 states and 450583 transitions. [2024-11-24 00:33:49,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:33:49,027 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 65.0) internal successors, (260), 4 states have internal predecessors, (260), 0 states have call successors, (0), 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 260 [2024-11-24 00:33:49,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:33:49,216 INFO L225 Difference]: With dead ends: 290899 [2024-11-24 00:33:49,217 INFO L226 Difference]: Without dead ends: 195220 [2024-11-24 00:33:49,283 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 [2024-11-24 00:33:49,284 INFO L435 NwaCegarLoop]: 1687 mSDtfsCounter, 953 mSDsluCounter, 2681 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 953 SdHoareTripleChecker+Valid, 4368 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:33:49,284 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [953 Valid, 4368 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:33:49,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195220 states. [2024-11-24 00:33:51,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195220 to 100136. [2024-11-24 00:33:51,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100136 states, 100135 states have (on average 1.5503769910620662) internal successors, (155247), 100135 states have internal predecessors, (155247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:33:52,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100136 states to 100136 states and 155247 transitions. [2024-11-24 00:33:52,125 INFO L78 Accepts]: Start accepts. Automaton has 100136 states and 155247 transitions. Word has length 260 [2024-11-24 00:33:52,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:33:52,125 INFO L471 AbstractCegarLoop]: Abstraction has 100136 states and 155247 transitions. [2024-11-24 00:33:52,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 65.0) internal successors, (260), 4 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:33:52,125 INFO L276 IsEmpty]: Start isEmpty. Operand 100136 states and 155247 transitions. [2024-11-24 00:33:52,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2024-11-24 00:33:52,193 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:33:52,194 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] [2024-11-24 00:33:52,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-24 00:33:52,194 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:33:52,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:33:52,195 INFO L85 PathProgramCache]: Analyzing trace with hash 45809010, now seen corresponding path program 1 times [2024-11-24 00:33:52,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:33:52,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141879225] [2024-11-24 00:33:52,195 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:33:52,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:33:52,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:33:53,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:33:53,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:33:53,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141879225] [2024-11-24 00:33:53,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141879225] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:33:53,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:33:53,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:33:53,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932836005] [2024-11-24 00:33:53,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:33:53,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:33:53,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:33:53,908 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:33:53,908 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:33:53,908 INFO L87 Difference]: Start difference. First operand 100136 states and 155247 transitions. Second operand has 4 states, 4 states have (on average 65.5) internal successors, (262), 4 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:33:54,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:33:54,397 INFO L93 Difference]: Finished difference Result 180644 states and 279632 transitions. [2024-11-24 00:33:54,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:33:54,397 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 65.5) internal successors, (262), 4 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 262 [2024-11-24 00:33:54,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:33:54,481 INFO L225 Difference]: With dead ends: 180644 [2024-11-24 00:33:54,481 INFO L226 Difference]: Without dead ends: 85360 [2024-11-24 00:33:54,527 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 [2024-11-24 00:33:54,528 INFO L435 NwaCegarLoop]: 1144 mSDtfsCounter, 96 mSDsluCounter, 2143 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 3287 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:33:54,528 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 3287 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:33:54,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85360 states. [2024-11-24 00:33:55,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85360 to 84938. [2024-11-24 00:33:55,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84938 states, 84937 states have (on average 1.549077551597066) internal successors, (131574), 84937 states have internal predecessors, (131574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:33:55,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84938 states to 84938 states and 131574 transitions. [2024-11-24 00:33:55,947 INFO L78 Accepts]: Start accepts. Automaton has 84938 states and 131574 transitions. Word has length 262 [2024-11-24 00:33:55,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:33:55,948 INFO L471 AbstractCegarLoop]: Abstraction has 84938 states and 131574 transitions. [2024-11-24 00:33:55,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 65.5) internal successors, (262), 4 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:33:55,948 INFO L276 IsEmpty]: Start isEmpty. Operand 84938 states and 131574 transitions. [2024-11-24 00:33:55,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2024-11-24 00:33:55,981 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:33:55,982 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] [2024-11-24 00:33:55,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-24 00:33:55,982 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:33:55,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:33:55,983 INFO L85 PathProgramCache]: Analyzing trace with hash -469458436, now seen corresponding path program 1 times [2024-11-24 00:33:55,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:33:55,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024884229] [2024-11-24 00:33:55,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:33:55,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:33:56,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:33:56,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:33:56,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:33:56,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024884229] [2024-11-24 00:33:56,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024884229] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:33:56,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:33:56,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:33:56,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568997024] [2024-11-24 00:33:56,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:33:56,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:33:56,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:33:56,167 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:33:56,167 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:33:56,167 INFO L87 Difference]: Start difference. First operand 84938 states and 131574 transitions. Second operand has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:33:57,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:33:57,104 INFO L93 Difference]: Finished difference Result 210109 states and 329499 transitions. [2024-11-24 00:33:57,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:33:57,104 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 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 263 [2024-11-24 00:33:57,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:33:57,315 INFO L225 Difference]: With dead ends: 210109 [2024-11-24 00:33:57,315 INFO L226 Difference]: Without dead ends: 137166 [2024-11-24 00:33:57,382 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 [2024-11-24 00:33:57,382 INFO L435 NwaCegarLoop]: 1348 mSDtfsCounter, 532 mSDsluCounter, 782 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 532 SdHoareTripleChecker+Valid, 2130 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:33:57,383 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [532 Valid, 2130 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:33:57,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137166 states. [2024-11-24 00:33:59,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137166 to 126132. [2024-11-24 00:33:59,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126132 states, 126131 states have (on average 1.5736575465190952) internal successors, (198487), 126131 states have internal predecessors, (198487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:34:00,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126132 states to 126132 states and 198487 transitions. [2024-11-24 00:34:00,038 INFO L78 Accepts]: Start accepts. Automaton has 126132 states and 198487 transitions. Word has length 263 [2024-11-24 00:34:00,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:34:00,039 INFO L471 AbstractCegarLoop]: Abstraction has 126132 states and 198487 transitions. [2024-11-24 00:34:00,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:34:00,039 INFO L276 IsEmpty]: Start isEmpty. Operand 126132 states and 198487 transitions. [2024-11-24 00:34:00,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2024-11-24 00:34:00,060 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:34:00,060 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] [2024-11-24 00:34:00,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-24 00:34:00,061 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:34:00,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:34:00,061 INFO L85 PathProgramCache]: Analyzing trace with hash -366909075, now seen corresponding path program 1 times [2024-11-24 00:34:00,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:34:00,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975355069] [2024-11-24 00:34:00,061 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:34:00,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:34:00,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:34:00,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:34:00,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:34:00,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975355069] [2024-11-24 00:34:00,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975355069] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:34:00,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:34:00,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:34:00,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028109298] [2024-11-24 00:34:00,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:34:00,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:34:00,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:34:00,246 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:34:00,246 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:34:00,246 INFO L87 Difference]: Start difference. First operand 126132 states and 198487 transitions. Second operand has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:34:01,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:34:01,750 INFO L93 Difference]: Finished difference Result 325406 states and 517633 transitions. [2024-11-24 00:34:01,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:34:01,751 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 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 263 [2024-11-24 00:34:01,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:34:02,003 INFO L225 Difference]: With dead ends: 325406 [2024-11-24 00:34:02,003 INFO L226 Difference]: Without dead ends: 212268 [2024-11-24 00:34:02,067 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 [2024-11-24 00:34:02,068 INFO L435 NwaCegarLoop]: 1328 mSDtfsCounter, 522 mSDsluCounter, 767 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 522 SdHoareTripleChecker+Valid, 2095 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:34:02,068 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [522 Valid, 2095 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:34:02,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212268 states. [2024-11-24 00:34:05,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212268 to 199172. [2024-11-24 00:34:05,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199172 states, 199171 states have (on average 1.5913611921414261) internal successors, (316953), 199171 states have internal predecessors, (316953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)