./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e337800e-2ed8-4e71-83ba-7ab44ea9b8fe/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e337800e-2ed8-4e71-83ba-7ab44ea9b8fe/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e337800e-2ed8-4e71-83ba-7ab44ea9b8fe/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e337800e-2ed8-4e71-83ba-7ab44ea9b8fe/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e337800e-2ed8-4e71-83ba-7ab44ea9b8fe/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e337800e-2ed8-4e71-83ba-7ab44ea9b8fe/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 453217a894ab839ac749d51e6f81154421ad61236b47a16877fbef21d8ae30a8 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-01 23:16:42,073 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-01 23:16:42,131 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e337800e-2ed8-4e71-83ba-7ab44ea9b8fe/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-01 23:16:42,137 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-01 23:16:42,137 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-01 23:16:42,158 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-01 23:16:42,159 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-01 23:16:42,159 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-01 23:16:42,159 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-01 23:16:42,159 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-01 23:16:42,159 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-01 23:16:42,160 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-01 23:16:42,160 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-01 23:16:42,160 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-01 23:16:42,160 INFO L153 SettingsManager]: * Use SBE=true [2024-12-01 23:16:42,161 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-01 23:16:42,161 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-01 23:16:42,161 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-01 23:16:42,161 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-01 23:16:42,161 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-01 23:16:42,161 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-01 23:16:42,161 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-01 23:16:42,161 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-01 23:16:42,161 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-01 23:16:42,161 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-01 23:16:42,161 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-01 23:16:42,162 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-01 23:16:42,162 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-01 23:16:42,162 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-01 23:16:42,162 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-01 23:16:42,162 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-01 23:16:42,162 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-01 23:16:42,162 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 23:16:42,162 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-01 23:16:42,162 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-01 23:16:42,163 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-01 23:16:42,163 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-01 23:16:42,163 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 23:16:42,163 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-01 23:16:42,163 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-01 23:16:42,163 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-01 23:16:42,163 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-01 23:16:42,163 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-01 23:16:42,163 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-01 23:16:42,164 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-01 23:16:42,164 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-01 23:16:42,164 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-01 23:16:42,164 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-01 23:16:42,164 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_e337800e-2ed8-4e71-83ba-7ab44ea9b8fe/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 453217a894ab839ac749d51e6f81154421ad61236b47a16877fbef21d8ae30a8 [2024-12-01 23:16:42,383 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-01 23:16:42,391 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-01 23:16:42,393 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-01 23:16:42,394 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-01 23:16:42,395 INFO L274 PluginConnector]: CDTParser initialized [2024-12-01 23:16:42,396 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e337800e-2ed8-4e71-83ba-7ab44ea9b8fe/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c [2024-12-01 23:16:45,077 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e337800e-2ed8-4e71-83ba-7ab44ea9b8fe/bin/uautomizer-verify-84ZbGMXZE1/data/c1d14daaa/2d144b77029e497690b7cb211f7e2711/FLAG7af5fd528 [2024-12-01 23:16:45,339 INFO L384 CDTParser]: Found 1 translation units. [2024-12-01 23:16:45,340 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e337800e-2ed8-4e71-83ba-7ab44ea9b8fe/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c [2024-12-01 23:16:45,351 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e337800e-2ed8-4e71-83ba-7ab44ea9b8fe/bin/uautomizer-verify-84ZbGMXZE1/data/c1d14daaa/2d144b77029e497690b7cb211f7e2711/FLAG7af5fd528 [2024-12-01 23:16:45,364 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e337800e-2ed8-4e71-83ba-7ab44ea9b8fe/bin/uautomizer-verify-84ZbGMXZE1/data/c1d14daaa/2d144b77029e497690b7cb211f7e2711 [2024-12-01 23:16:45,367 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-01 23:16:45,368 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-01 23:16:45,369 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-01 23:16:45,369 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-01 23:16:45,373 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-01 23:16:45,373 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:16:45" (1/1) ... [2024-12-01 23:16:45,374 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5afa0845 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:45, skipping insertion in model container [2024-12-01 23:16:45,374 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:16:45" (1/1) ... [2024-12-01 23:16:45,403 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-01 23:16:45,582 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_e337800e-2ed8-4e71-83ba-7ab44ea9b8fe/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c[7253,7266] [2024-12-01 23:16:45,631 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-01 23:16:45,645 INFO L200 MainTranslator]: Completed pre-run [2024-12-01 23:16:45,693 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_e337800e-2ed8-4e71-83ba-7ab44ea9b8fe/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c[7253,7266] [2024-12-01 23:16:45,737 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-01 23:16:45,753 INFO L204 MainTranslator]: Completed translation [2024-12-01 23:16:45,753 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:45 WrapperNode [2024-12-01 23:16:45,753 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-01 23:16:45,754 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-01 23:16:45,754 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-01 23:16:45,755 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-01 23:16:45,761 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:45" (1/1) ... [2024-12-01 23:16:45,770 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:45" (1/1) ... [2024-12-01 23:16:45,806 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 710 [2024-12-01 23:16:45,806 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-01 23:16:45,806 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-01 23:16:45,807 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-01 23:16:45,807 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-01 23:16:45,814 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:45" (1/1) ... [2024-12-01 23:16:45,814 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:45" (1/1) ... [2024-12-01 23:16:45,818 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:45" (1/1) ... [2024-12-01 23:16:45,833 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-01 23:16:45,833 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:45" (1/1) ... [2024-12-01 23:16:45,834 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:45" (1/1) ... [2024-12-01 23:16:45,843 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:45" (1/1) ... [2024-12-01 23:16:45,845 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:45" (1/1) ... [2024-12-01 23:16:45,850 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:45" (1/1) ... [2024-12-01 23:16:45,853 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:45" (1/1) ... [2024-12-01 23:16:45,855 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:45" (1/1) ... [2024-12-01 23:16:45,859 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-01 23:16:45,860 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-01 23:16:45,860 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-01 23:16:45,860 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-01 23:16:45,861 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:45" (1/1) ... [2024-12-01 23:16:45,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 23:16:45,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e337800e-2ed8-4e71-83ba-7ab44ea9b8fe/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 23:16:45,896 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e337800e-2ed8-4e71-83ba-7ab44ea9b8fe/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-01 23:16:45,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e337800e-2ed8-4e71-83ba-7ab44ea9b8fe/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-01 23:16:45,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-01 23:16:45,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-01 23:16:45,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-01 23:16:45,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-01 23:16:46,024 INFO L234 CfgBuilder]: Building ICFG [2024-12-01 23:16:46,026 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-01 23:16:46,629 INFO L? ?]: Removed 87 outVars from TransFormulas that were not future-live. [2024-12-01 23:16:46,629 INFO L283 CfgBuilder]: Performing block encoding [2024-12-01 23:16:46,642 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-01 23:16:46,642 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-01 23:16:46,643 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:16:46 BoogieIcfgContainer [2024-12-01 23:16:46,643 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-01 23:16:46,645 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-01 23:16:46,645 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-01 23:16:46,649 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-01 23:16:46,650 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 11:16:45" (1/3) ... [2024-12-01 23:16:46,650 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12f9d3df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:16:46, skipping insertion in model container [2024-12-01 23:16:46,650 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:45" (2/3) ... [2024-12-01 23:16:46,651 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12f9d3df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:16:46, skipping insertion in model container [2024-12-01 23:16:46,651 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:16:46" (3/3) ... [2024-12-01 23:16:46,652 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c [2024-12-01 23:16:46,664 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-01 23:16:46,666 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c that has 1 procedures, 171 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-12-01 23:16:46,715 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-01 23:16:46,726 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;@7cb1d016, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-01 23:16:46,726 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-01 23:16:46,730 INFO L276 IsEmpty]: Start isEmpty. Operand has 171 states, 169 states have (on average 1.7218934911242603) internal successors, (291), 170 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:46,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-12-01 23:16:46,736 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:16:46,737 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] [2024-12-01 23:16:46,737 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:16:46,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:16:46,742 INFO L85 PathProgramCache]: Analyzing trace with hash 965210613, now seen corresponding path program 1 times [2024-12-01 23:16:46,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:16:46,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483531705] [2024-12-01 23:16:46,747 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:16:46,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:16:46,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:16:47,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:16:47,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:16:47,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483531705] [2024-12-01 23:16:47,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483531705] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:16:47,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:16:47,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-01 23:16:47,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597781765] [2024-12-01 23:16:47,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:16:47,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-01 23:16:47,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:16:47,232 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-01 23:16:47,232 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-01 23:16:47,235 INFO L87 Difference]: Start difference. First operand has 171 states, 169 states have (on average 1.7218934911242603) internal successors, (291), 170 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:47,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:16:47,461 INFO L93 Difference]: Finished difference Result 606 states and 981 transitions. [2024-12-01 23:16:47,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-01 23:16:47,464 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2024-12-01 23:16:47,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:16:47,475 INFO L225 Difference]: With dead ends: 606 [2024-12-01 23:16:47,475 INFO L226 Difference]: Without dead ends: 512 [2024-12-01 23:16:47,479 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-12-01 23:16:47,481 INFO L435 NwaCegarLoop]: 292 mSDtfsCounter, 1755 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1755 SdHoareTripleChecker+Valid, 960 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-01 23:16:47,482 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1755 Valid, 960 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-01 23:16:47,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2024-12-01 23:16:47,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 261. [2024-12-01 23:16:47,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 260 states have (on average 1.5) internal successors, (390), 260 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:47,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 390 transitions. [2024-12-01 23:16:47,532 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 390 transitions. Word has length 64 [2024-12-01 23:16:47,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:16:47,533 INFO L471 AbstractCegarLoop]: Abstraction has 261 states and 390 transitions. [2024-12-01 23:16:47,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:47,533 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 390 transitions. [2024-12-01 23:16:47,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-12-01 23:16:47,535 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:16:47,535 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:16:47,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-01 23:16:47,535 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:16:47,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:16:47,536 INFO L85 PathProgramCache]: Analyzing trace with hash -404660772, now seen corresponding path program 1 times [2024-12-01 23:16:47,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:16:47,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373554209] [2024-12-01 23:16:47,536 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:16:47,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:16:47,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:16:47,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:16:47,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:16:47,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373554209] [2024-12-01 23:16:47,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373554209] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:16:47,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:16:47,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-01 23:16:47,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732703465] [2024-12-01 23:16:47,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:16:47,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-01 23:16:47,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:16:47,747 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-01 23:16:47,748 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-01 23:16:47,748 INFO L87 Difference]: Start difference. First operand 261 states and 390 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:47,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:16:47,912 INFO L93 Difference]: Finished difference Result 969 states and 1486 transitions. [2024-12-01 23:16:47,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-01 23:16:47,912 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-12-01 23:16:47,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:16:47,916 INFO L225 Difference]: With dead ends: 969 [2024-12-01 23:16:47,917 INFO L226 Difference]: Without dead ends: 767 [2024-12-01 23:16:47,918 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-01 23:16:47,918 INFO L435 NwaCegarLoop]: 366 mSDtfsCounter, 834 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 834 SdHoareTripleChecker+Valid, 961 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-01 23:16:47,919 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [834 Valid, 961 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-01 23:16:47,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2024-12-01 23:16:47,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 761. [2024-12-01 23:16:47,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 761 states, 760 states have (on average 1.5223684210526316) internal successors, (1157), 760 states have internal predecessors, (1157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:47,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 761 states to 761 states and 1157 transitions. [2024-12-01 23:16:47,960 INFO L78 Accepts]: Start accepts. Automaton has 761 states and 1157 transitions. Word has length 65 [2024-12-01 23:16:47,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:16:47,960 INFO L471 AbstractCegarLoop]: Abstraction has 761 states and 1157 transitions. [2024-12-01 23:16:47,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:47,961 INFO L276 IsEmpty]: Start isEmpty. Operand 761 states and 1157 transitions. [2024-12-01 23:16:47,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-12-01 23:16:47,963 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:16:47,963 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] [2024-12-01 23:16:47,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-01 23:16:47,963 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:16:47,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:16:47,964 INFO L85 PathProgramCache]: Analyzing trace with hash 372471029, now seen corresponding path program 1 times [2024-12-01 23:16:47,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:16:47,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875044380] [2024-12-01 23:16:47,964 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:16:47,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:16:47,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:16:48,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:16:48,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:16:48,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875044380] [2024-12-01 23:16:48,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875044380] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:16:48,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:16:48,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-01 23:16:48,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983400456] [2024-12-01 23:16:48,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:16:48,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 23:16:48,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:16:48,094 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 23:16:48,094 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-01 23:16:48,094 INFO L87 Difference]: Start difference. First operand 761 states and 1157 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:48,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:16:48,325 INFO L93 Difference]: Finished difference Result 2033 states and 3131 transitions. [2024-12-01 23:16:48,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-01 23:16:48,325 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2024-12-01 23:16:48,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:16:48,329 INFO L225 Difference]: With dead ends: 2033 [2024-12-01 23:16:48,329 INFO L226 Difference]: Without dead ends: 1319 [2024-12-01 23:16:48,331 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-01 23:16:48,331 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 941 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 941 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-01 23:16:48,332 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [941 Valid, 233 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-01 23:16:48,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1319 states. [2024-12-01 23:16:48,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1319 to 1317. [2024-12-01 23:16:48,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1317 states, 1316 states have (on average 1.5303951367781155) internal successors, (2014), 1316 states have internal predecessors, (2014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:48,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1317 states to 1317 states and 2014 transitions. [2024-12-01 23:16:48,358 INFO L78 Accepts]: Start accepts. Automaton has 1317 states and 2014 transitions. Word has length 66 [2024-12-01 23:16:48,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:16:48,358 INFO L471 AbstractCegarLoop]: Abstraction has 1317 states and 2014 transitions. [2024-12-01 23:16:48,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:48,358 INFO L276 IsEmpty]: Start isEmpty. Operand 1317 states and 2014 transitions. [2024-12-01 23:16:48,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-12-01 23:16:48,360 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:16:48,360 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] [2024-12-01 23:16:48,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-01 23:16:48,361 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:16:48,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:16:48,361 INFO L85 PathProgramCache]: Analyzing trace with hash 342598487, now seen corresponding path program 1 times [2024-12-01 23:16:48,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:16:48,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922090183] [2024-12-01 23:16:48,362 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:16:48,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:16:48,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:16:48,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:16:48,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:16:48,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922090183] [2024-12-01 23:16:48,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922090183] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:16:48,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:16:48,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-01 23:16:48,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132154343] [2024-12-01 23:16:48,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:16:48,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 23:16:48,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:16:48,543 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 23:16:48,543 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-01 23:16:48,543 INFO L87 Difference]: Start difference. First operand 1317 states and 2014 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:48,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:16:48,788 INFO L93 Difference]: Finished difference Result 3529 states and 5448 transitions. [2024-12-01 23:16:48,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-01 23:16:48,789 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2024-12-01 23:16:48,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:16:48,798 INFO L225 Difference]: With dead ends: 3529 [2024-12-01 23:16:48,798 INFO L226 Difference]: Without dead ends: 2309 [2024-12-01 23:16:48,800 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-01 23:16:48,801 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 867 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 867 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-01 23:16:48,802 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [867 Valid, 239 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-01 23:16:48,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2309 states. [2024-12-01 23:16:48,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2309 to 2307. [2024-12-01 23:16:48,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2307 states, 2306 states have (on average 1.533391153512576) internal successors, (3536), 2306 states have internal predecessors, (3536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:48,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2307 states to 2307 states and 3536 transitions. [2024-12-01 23:16:48,853 INFO L78 Accepts]: Start accepts. Automaton has 2307 states and 3536 transitions. Word has length 66 [2024-12-01 23:16:48,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:16:48,853 INFO L471 AbstractCegarLoop]: Abstraction has 2307 states and 3536 transitions. [2024-12-01 23:16:48,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:48,853 INFO L276 IsEmpty]: Start isEmpty. Operand 2307 states and 3536 transitions. [2024-12-01 23:16:48,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-12-01 23:16:48,855 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:16:48,855 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] [2024-12-01 23:16:48,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-01 23:16:48,855 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:16:48,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:16:48,856 INFO L85 PathProgramCache]: Analyzing trace with hash -440340154, now seen corresponding path program 1 times [2024-12-01 23:16:48,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:16:48,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108874082] [2024-12-01 23:16:48,856 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:16:48,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:16:48,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:16:48,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:16:48,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:16:48,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108874082] [2024-12-01 23:16:48,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108874082] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:16:48,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:16:48,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-01 23:16:48,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149142455] [2024-12-01 23:16:48,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:16:48,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 23:16:48,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:16:48,979 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 23:16:48,979 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-01 23:16:48,979 INFO L87 Difference]: Start difference. First operand 2307 states and 3536 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:49,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:16:49,217 INFO L93 Difference]: Finished difference Result 6570 states and 10123 transitions. [2024-12-01 23:16:49,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-01 23:16:49,217 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2024-12-01 23:16:49,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:16:49,229 INFO L225 Difference]: With dead ends: 6570 [2024-12-01 23:16:49,229 INFO L226 Difference]: Without dead ends: 4333 [2024-12-01 23:16:49,231 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-01 23:16:49,232 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 897 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 897 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-01 23:16:49,232 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [897 Valid, 235 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-01 23:16:49,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4333 states. [2024-12-01 23:16:49,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4333 to 4331. [2024-12-01 23:16:49,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4331 states, 4330 states have (on average 1.530715935334873) internal successors, (6628), 4330 states have internal predecessors, (6628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:49,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4331 states to 4331 states and 6628 transitions. [2024-12-01 23:16:49,319 INFO L78 Accepts]: Start accepts. Automaton has 4331 states and 6628 transitions. Word has length 66 [2024-12-01 23:16:49,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:16:49,319 INFO L471 AbstractCegarLoop]: Abstraction has 4331 states and 6628 transitions. [2024-12-01 23:16:49,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:49,319 INFO L276 IsEmpty]: Start isEmpty. Operand 4331 states and 6628 transitions. [2024-12-01 23:16:49,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-12-01 23:16:49,321 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:16:49,321 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:16:49,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-01 23:16:49,321 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:16:49,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:16:49,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1058443688, now seen corresponding path program 1 times [2024-12-01 23:16:49,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:16:49,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898157881] [2024-12-01 23:16:49,322 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:16:49,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:16:49,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:16:49,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:16:49,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:16:49,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898157881] [2024-12-01 23:16:49,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898157881] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:16:49,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:16:49,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-01 23:16:49,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272115750] [2024-12-01 23:16:49,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:16:49,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 23:16:49,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:16:49,562 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 23:16:49,562 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-01 23:16:49,562 INFO L87 Difference]: Start difference. First operand 4331 states and 6628 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:49,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:16:49,602 INFO L93 Difference]: Finished difference Result 4461 states and 6821 transitions. [2024-12-01 23:16:49,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-01 23:16:49,602 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-12-01 23:16:49,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:16:49,612 INFO L225 Difference]: With dead ends: 4461 [2024-12-01 23:16:49,612 INFO L226 Difference]: Without dead ends: 4459 [2024-12-01 23:16:49,614 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-01 23:16:49,615 INFO L435 NwaCegarLoop]: 233 mSDtfsCounter, 0 mSDsluCounter, 685 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 918 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:16:49,615 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 918 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:16:49,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4459 states. [2024-12-01 23:16:49,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4459 to 4459. [2024-12-01 23:16:49,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4459 states, 4458 states have (on average 1.515477792732167) internal successors, (6756), 4458 states have internal predecessors, (6756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:49,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4459 states to 4459 states and 6756 transitions. [2024-12-01 23:16:49,682 INFO L78 Accepts]: Start accepts. Automaton has 4459 states and 6756 transitions. Word has length 67 [2024-12-01 23:16:49,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:16:49,683 INFO L471 AbstractCegarLoop]: Abstraction has 4459 states and 6756 transitions. [2024-12-01 23:16:49,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:49,683 INFO L276 IsEmpty]: Start isEmpty. Operand 4459 states and 6756 transitions. [2024-12-01 23:16:49,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-12-01 23:16:49,684 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:16:49,685 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:16:49,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-01 23:16:49,685 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:16:49,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:16:49,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1287643169, now seen corresponding path program 1 times [2024-12-01 23:16:49,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:16:49,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067995661] [2024-12-01 23:16:49,686 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:16:49,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:16:49,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:16:49,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:16:49,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:16:49,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067995661] [2024-12-01 23:16:49,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067995661] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:16:49,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:16:49,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-01 23:16:49,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595683491] [2024-12-01 23:16:49,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:16:49,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-01 23:16:49,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:16:49,833 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-01 23:16:49,833 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-01 23:16:49,833 INFO L87 Difference]: Start difference. First operand 4459 states and 6756 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:49,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:16:49,879 INFO L93 Difference]: Finished difference Result 12111 states and 18358 transitions. [2024-12-01 23:16:49,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-01 23:16:49,880 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-12-01 23:16:49,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:16:49,897 INFO L225 Difference]: With dead ends: 12111 [2024-12-01 23:16:49,897 INFO L226 Difference]: Without dead ends: 8061 [2024-12-01 23:16:49,900 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-01 23:16:49,901 INFO L435 NwaCegarLoop]: 320 mSDtfsCounter, 160 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:16:49,901 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 681 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:16:49,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8061 states. [2024-12-01 23:16:49,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8061 to 8059. [2024-12-01 23:16:50,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8059 states, 8058 states have (on average 1.5026061057334326) internal successors, (12108), 8058 states have internal predecessors, (12108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:50,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8059 states to 8059 states and 12108 transitions. [2024-12-01 23:16:50,021 INFO L78 Accepts]: Start accepts. Automaton has 8059 states and 12108 transitions. Word has length 68 [2024-12-01 23:16:50,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:16:50,021 INFO L471 AbstractCegarLoop]: Abstraction has 8059 states and 12108 transitions. [2024-12-01 23:16:50,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:50,021 INFO L276 IsEmpty]: Start isEmpty. Operand 8059 states and 12108 transitions. [2024-12-01 23:16:50,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-12-01 23:16:50,022 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:16:50,022 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:16:50,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-01 23:16:50,022 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:16:50,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:16:50,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1292543968, now seen corresponding path program 1 times [2024-12-01 23:16:50,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:16:50,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970381504] [2024-12-01 23:16:50,023 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:16:50,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:16:50,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:16:50,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:16:50,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:16:50,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970381504] [2024-12-01 23:16:50,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970381504] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:16:50,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:16:50,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 23:16:50,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873566927] [2024-12-01 23:16:50,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:16:50,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 23:16:50,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:16:50,077 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 23:16:50,077 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:16:50,077 INFO L87 Difference]: Start difference. First operand 8059 states and 12108 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:50,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:16:50,122 INFO L93 Difference]: Finished difference Result 11123 states and 16678 transitions. [2024-12-01 23:16:50,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 23:16:50,123 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-12-01 23:16:50,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:16:50,145 INFO L225 Difference]: With dead ends: 11123 [2024-12-01 23:16:50,145 INFO L226 Difference]: Without dead ends: 8869 [2024-12-01 23:16:50,149 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:16:50,149 INFO L435 NwaCegarLoop]: 232 mSDtfsCounter, 136 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:16:50,149 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 443 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:16:50,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8869 states. [2024-12-01 23:16:50,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8869 to 7883. [2024-12-01 23:16:50,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7883 states, 7882 states have (on average 1.4752600862725196) internal successors, (11628), 7882 states have internal predecessors, (11628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:50,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7883 states to 7883 states and 11628 transitions. [2024-12-01 23:16:50,278 INFO L78 Accepts]: Start accepts. Automaton has 7883 states and 11628 transitions. Word has length 69 [2024-12-01 23:16:50,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:16:50,279 INFO L471 AbstractCegarLoop]: Abstraction has 7883 states and 11628 transitions. [2024-12-01 23:16:50,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:50,279 INFO L276 IsEmpty]: Start isEmpty. Operand 7883 states and 11628 transitions. [2024-12-01 23:16:50,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-12-01 23:16:50,281 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:16:50,281 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:16:50,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-01 23:16:50,281 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:16:50,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:16:50,282 INFO L85 PathProgramCache]: Analyzing trace with hash 494119873, now seen corresponding path program 1 times [2024-12-01 23:16:50,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:16:50,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510165826] [2024-12-01 23:16:50,282 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:16:50,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:16:50,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:16:50,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:16:50,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:16:50,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510165826] [2024-12-01 23:16:50,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510165826] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:16:50,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:16:50,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 23:16:50,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898302472] [2024-12-01 23:16:50,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:16:50,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 23:16:50,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:16:50,338 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 23:16:50,338 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:16:50,339 INFO L87 Difference]: Start difference. First operand 7883 states and 11628 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:50,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:16:50,387 INFO L93 Difference]: Finished difference Result 13072 states and 19309 transitions. [2024-12-01 23:16:50,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 23:16:50,388 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-12-01 23:16:50,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:16:50,403 INFO L225 Difference]: With dead ends: 13072 [2024-12-01 23:16:50,403 INFO L226 Difference]: Without dead ends: 9034 [2024-12-01 23:16:50,408 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:16:50,408 INFO L435 NwaCegarLoop]: 231 mSDtfsCounter, 146 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:16:50,409 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 441 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:16:50,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9034 states. [2024-12-01 23:16:50,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9034 to 8920. [2024-12-01 23:16:50,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8920 states, 8919 states have (on average 1.4489292521583137) internal successors, (12923), 8919 states have internal predecessors, (12923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:50,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8920 states to 8920 states and 12923 transitions. [2024-12-01 23:16:50,521 INFO L78 Accepts]: Start accepts. Automaton has 8920 states and 12923 transitions. Word has length 69 [2024-12-01 23:16:50,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:16:50,521 INFO L471 AbstractCegarLoop]: Abstraction has 8920 states and 12923 transitions. [2024-12-01 23:16:50,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:50,522 INFO L276 IsEmpty]: Start isEmpty. Operand 8920 states and 12923 transitions. [2024-12-01 23:16:50,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-12-01 23:16:50,524 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:16:50,524 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:16:50,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-01 23:16:50,525 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:16:50,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:16:50,525 INFO L85 PathProgramCache]: Analyzing trace with hash -2048736576, now seen corresponding path program 1 times [2024-12-01 23:16:50,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:16:50,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337747388] [2024-12-01 23:16:50,525 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:16:50,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:16:50,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:16:50,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:16:50,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:16:50,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337747388] [2024-12-01 23:16:50,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337747388] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:16:50,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:16:50,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-01 23:16:50,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503109127] [2024-12-01 23:16:50,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:16:50,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-01 23:16:50,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:16:50,697 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-01 23:16:50,697 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-01 23:16:50,698 INFO L87 Difference]: Start difference. First operand 8920 states and 12923 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:50,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:16:50,845 INFO L93 Difference]: Finished difference Result 18117 states and 26451 transitions. [2024-12-01 23:16:50,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-01 23:16:50,846 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-12-01 23:16:50,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:16:50,871 INFO L225 Difference]: With dead ends: 18117 [2024-12-01 23:16:50,871 INFO L226 Difference]: Without dead ends: 14739 [2024-12-01 23:16:50,877 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-12-01 23:16:50,878 INFO L435 NwaCegarLoop]: 370 mSDtfsCounter, 1049 mSDsluCounter, 880 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1049 SdHoareTripleChecker+Valid, 1250 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-01 23:16:50,878 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1049 Valid, 1250 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-01 23:16:50,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14739 states. [2024-12-01 23:16:51,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14739 to 12299. [2024-12-01 23:16:51,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12299 states, 12298 states have (on average 1.4501544966661246) internal successors, (17834), 12298 states have internal predecessors, (17834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:51,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12299 states to 12299 states and 17834 transitions. [2024-12-01 23:16:51,053 INFO L78 Accepts]: Start accepts. Automaton has 12299 states and 17834 transitions. Word has length 69 [2024-12-01 23:16:51,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:16:51,053 INFO L471 AbstractCegarLoop]: Abstraction has 12299 states and 17834 transitions. [2024-12-01 23:16:51,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:51,054 INFO L276 IsEmpty]: Start isEmpty. Operand 12299 states and 17834 transitions. [2024-12-01 23:16:51,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-12-01 23:16:51,055 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:16:51,055 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:16:51,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-01 23:16:51,055 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:16:51,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:16:51,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1719145697, now seen corresponding path program 1 times [2024-12-01 23:16:51,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:16:51,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431479075] [2024-12-01 23:16:51,056 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:16:51,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:16:51,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:16:51,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:16:51,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:16:51,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431479075] [2024-12-01 23:16:51,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431479075] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:16:51,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:16:51,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 23:16:51,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751783858] [2024-12-01 23:16:51,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:16:51,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 23:16:51,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:16:51,135 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 23:16:51,135 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:16:51,136 INFO L87 Difference]: Start difference. First operand 12299 states and 17834 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:51,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:16:51,215 INFO L93 Difference]: Finished difference Result 32080 states and 46504 transitions. [2024-12-01 23:16:51,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 23:16:51,216 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-12-01 23:16:51,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:16:51,248 INFO L225 Difference]: With dead ends: 32080 [2024-12-01 23:16:51,248 INFO L226 Difference]: Without dead ends: 21711 [2024-12-01 23:16:51,257 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:16:51,257 INFO L435 NwaCegarLoop]: 231 mSDtfsCounter, 161 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:16:51,258 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 454 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:16:51,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21711 states. [2024-12-01 23:16:51,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21711 to 21709. [2024-12-01 23:16:51,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21709 states, 21708 states have (on average 1.4337110742583379) internal successors, (31123), 21708 states have internal predecessors, (31123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:51,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21709 states to 21709 states and 31123 transitions. [2024-12-01 23:16:51,547 INFO L78 Accepts]: Start accepts. Automaton has 21709 states and 31123 transitions. Word has length 69 [2024-12-01 23:16:51,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:16:51,547 INFO L471 AbstractCegarLoop]: Abstraction has 21709 states and 31123 transitions. [2024-12-01 23:16:51,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:51,547 INFO L276 IsEmpty]: Start isEmpty. Operand 21709 states and 31123 transitions. [2024-12-01 23:16:51,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-12-01 23:16:51,549 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:16:51,549 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:16:51,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-01 23:16:51,549 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:16:51,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:16:51,549 INFO L85 PathProgramCache]: Analyzing trace with hash -760950752, now seen corresponding path program 1 times [2024-12-01 23:16:51,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:16:51,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370564239] [2024-12-01 23:16:51,550 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:16:51,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:16:51,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:16:51,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:16:51,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:16:51,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370564239] [2024-12-01 23:16:51,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370564239] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:16:51,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:16:51,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-01 23:16:51,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254409104] [2024-12-01 23:16:51,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:16:51,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-01 23:16:51,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:16:51,665 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-01 23:16:51,665 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-01 23:16:51,666 INFO L87 Difference]: Start difference. First operand 21709 states and 31123 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:51,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:16:51,808 INFO L93 Difference]: Finished difference Result 30959 states and 44556 transitions. [2024-12-01 23:16:51,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-01 23:16:51,809 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-12-01 23:16:51,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:16:51,856 INFO L225 Difference]: With dead ends: 30959 [2024-12-01 23:16:51,856 INFO L226 Difference]: Without dead ends: 29529 [2024-12-01 23:16:51,863 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-12-01 23:16:51,863 INFO L435 NwaCegarLoop]: 336 mSDtfsCounter, 1054 mSDsluCounter, 786 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1054 SdHoareTripleChecker+Valid, 1122 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-01 23:16:51,863 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1054 Valid, 1122 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-01 23:16:51,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29529 states. [2024-12-01 23:16:52,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29529 to 23123. [2024-12-01 23:16:52,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23123 states, 23122 states have (on average 1.4337427558169709) internal successors, (33151), 23122 states have internal predecessors, (33151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:52,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23123 states to 23123 states and 33151 transitions. [2024-12-01 23:16:52,262 INFO L78 Accepts]: Start accepts. Automaton has 23123 states and 33151 transitions. Word has length 69 [2024-12-01 23:16:52,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:16:52,262 INFO L471 AbstractCegarLoop]: Abstraction has 23123 states and 33151 transitions. [2024-12-01 23:16:52,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:52,262 INFO L276 IsEmpty]: Start isEmpty. Operand 23123 states and 33151 transitions. [2024-12-01 23:16:52,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-12-01 23:16:52,264 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:16:52,264 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:16:52,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-01 23:16:52,265 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:16:52,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:16:52,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1412359137, now seen corresponding path program 1 times [2024-12-01 23:16:52,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:16:52,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586087135] [2024-12-01 23:16:52,265 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:16:52,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:16:52,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:16:52,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:16:52,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:16:52,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586087135] [2024-12-01 23:16:52,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586087135] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:16:52,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:16:52,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-01 23:16:52,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130850404] [2024-12-01 23:16:52,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:16:52,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-01 23:16:52,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:16:52,403 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-01 23:16:52,403 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-01 23:16:52,403 INFO L87 Difference]: Start difference. First operand 23123 states and 33151 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:52,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:16:52,605 INFO L93 Difference]: Finished difference Result 34079 states and 49066 transitions. [2024-12-01 23:16:52,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-01 23:16:52,605 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-12-01 23:16:52,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:16:52,661 INFO L225 Difference]: With dead ends: 34079 [2024-12-01 23:16:52,661 INFO L226 Difference]: Without dead ends: 30905 [2024-12-01 23:16:52,670 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-12-01 23:16:52,671 INFO L435 NwaCegarLoop]: 362 mSDtfsCounter, 969 mSDsluCounter, 935 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 969 SdHoareTripleChecker+Valid, 1297 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-01 23:16:52,671 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [969 Valid, 1297 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-01 23:16:52,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30905 states. [2024-12-01 23:16:53,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30905 to 26279. [2024-12-01 23:16:53,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26279 states, 26278 states have (on average 1.4337849151381383) internal successors, (37677), 26278 states have internal predecessors, (37677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:53,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26279 states to 26279 states and 37677 transitions. [2024-12-01 23:16:53,068 INFO L78 Accepts]: Start accepts. Automaton has 26279 states and 37677 transitions. Word has length 69 [2024-12-01 23:16:53,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:16:53,069 INFO L471 AbstractCegarLoop]: Abstraction has 26279 states and 37677 transitions. [2024-12-01 23:16:53,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:53,069 INFO L276 IsEmpty]: Start isEmpty. Operand 26279 states and 37677 transitions. [2024-12-01 23:16:53,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-12-01 23:16:53,072 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:16:53,072 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:16:53,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-01 23:16:53,072 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:16:53,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:16:53,073 INFO L85 PathProgramCache]: Analyzing trace with hash -677295103, now seen corresponding path program 1 times [2024-12-01 23:16:53,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:16:53,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114443958] [2024-12-01 23:16:53,073 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:16:53,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:16:53,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:16:53,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:16:53,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:16:53,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114443958] [2024-12-01 23:16:53,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114443958] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:16:53,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:16:53,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-01 23:16:53,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287930826] [2024-12-01 23:16:53,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:16:53,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-01 23:16:53,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:16:53,275 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-01 23:16:53,275 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-01 23:16:53,275 INFO L87 Difference]: Start difference. First operand 26279 states and 37677 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:53,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:16:53,497 INFO L93 Difference]: Finished difference Result 44617 states and 64316 transitions. [2024-12-01 23:16:53,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-01 23:16:53,498 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-12-01 23:16:53,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:16:53,575 INFO L225 Difference]: With dead ends: 44617 [2024-12-01 23:16:53,575 INFO L226 Difference]: Without dead ends: 37299 [2024-12-01 23:16:53,590 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-12-01 23:16:53,591 INFO L435 NwaCegarLoop]: 382 mSDtfsCounter, 1053 mSDsluCounter, 890 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1053 SdHoareTripleChecker+Valid, 1272 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-01 23:16:53,591 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1053 Valid, 1272 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-01 23:16:53,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37299 states. [2024-12-01 23:16:53,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37299 to 31857. [2024-12-01 23:16:54,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31857 states, 31856 states have (on average 1.4341725263686589) internal successors, (45687), 31856 states have internal predecessors, (45687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:54,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31857 states to 31857 states and 45687 transitions. [2024-12-01 23:16:54,048 INFO L78 Accepts]: Start accepts. Automaton has 31857 states and 45687 transitions. Word has length 69 [2024-12-01 23:16:54,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:16:54,048 INFO L471 AbstractCegarLoop]: Abstraction has 31857 states and 45687 transitions. [2024-12-01 23:16:54,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:54,049 INFO L276 IsEmpty]: Start isEmpty. Operand 31857 states and 45687 transitions. [2024-12-01 23:16:54,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-12-01 23:16:54,051 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:16:54,051 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] [2024-12-01 23:16:54,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-01 23:16:54,052 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:16:54,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:16:54,052 INFO L85 PathProgramCache]: Analyzing trace with hash -652960215, now seen corresponding path program 1 times [2024-12-01 23:16:54,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:16:54,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424127128] [2024-12-01 23:16:54,052 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:16:54,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:16:54,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:16:54,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:16:54,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:16:54,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424127128] [2024-12-01 23:16:54,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424127128] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:16:54,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:16:54,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 23:16:54,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925923663] [2024-12-01 23:16:54,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:16:54,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 23:16:54,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:16:54,184 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 23:16:54,184 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:16:54,184 INFO L87 Difference]: Start difference. First operand 31857 states and 45687 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:54,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:16:54,324 INFO L93 Difference]: Finished difference Result 64721 states and 92346 transitions. [2024-12-01 23:16:54,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 23:16:54,325 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2024-12-01 23:16:54,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:16:54,362 INFO L225 Difference]: With dead ends: 64721 [2024-12-01 23:16:54,362 INFO L226 Difference]: Without dead ends: 35118 [2024-12-01 23:16:54,380 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:16:54,380 INFO L435 NwaCegarLoop]: 324 mSDtfsCounter, 151 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:16:54,381 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 533 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:16:54,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35118 states. [2024-12-01 23:16:54,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35118 to 32090. [2024-12-01 23:16:54,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32090 states, 32089 states have (on average 1.3965844993611518) internal successors, (44815), 32089 states have internal predecessors, (44815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:54,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32090 states to 32090 states and 44815 transitions. [2024-12-01 23:16:54,797 INFO L78 Accepts]: Start accepts. Automaton has 32090 states and 44815 transitions. Word has length 72 [2024-12-01 23:16:54,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:16:54,797 INFO L471 AbstractCegarLoop]: Abstraction has 32090 states and 44815 transitions. [2024-12-01 23:16:54,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:54,797 INFO L276 IsEmpty]: Start isEmpty. Operand 32090 states and 44815 transitions. [2024-12-01 23:16:54,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-12-01 23:16:54,800 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:16:54,800 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] [2024-12-01 23:16:54,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-01 23:16:54,800 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:16:54,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:16:54,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1885352739, now seen corresponding path program 1 times [2024-12-01 23:16:54,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:16:54,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196897547] [2024-12-01 23:16:54,801 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:16:54,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:16:54,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:16:54,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:16:54,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:16:54,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196897547] [2024-12-01 23:16:54,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196897547] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:16:54,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:16:54,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-01 23:16:54,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747604325] [2024-12-01 23:16:54,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:16:54,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-01 23:16:54,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:16:54,910 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-01 23:16:54,910 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-01 23:16:54,910 INFO L87 Difference]: Start difference. First operand 32090 states and 44815 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:55,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:16:55,410 INFO L93 Difference]: Finished difference Result 78025 states and 108466 transitions. [2024-12-01 23:16:55,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-01 23:16:55,411 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2024-12-01 23:16:55,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:16:55,472 INFO L225 Difference]: With dead ends: 78025 [2024-12-01 23:16:55,472 INFO L226 Difference]: Without dead ends: 67652 [2024-12-01 23:16:55,487 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-12-01 23:16:55,487 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 1706 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1706 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-01 23:16:55,488 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1706 Valid, 453 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-01 23:16:55,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67652 states. [2024-12-01 23:16:56,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67652 to 32114. [2024-12-01 23:16:56,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32114 states, 32113 states have (on average 1.396537227913929) internal successors, (44847), 32113 states have internal predecessors, (44847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:56,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32114 states to 32114 states and 44847 transitions. [2024-12-01 23:16:56,164 INFO L78 Accepts]: Start accepts. Automaton has 32114 states and 44847 transitions. Word has length 74 [2024-12-01 23:16:56,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:16:56,164 INFO L471 AbstractCegarLoop]: Abstraction has 32114 states and 44847 transitions. [2024-12-01 23:16:56,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:56,165 INFO L276 IsEmpty]: Start isEmpty. Operand 32114 states and 44847 transitions. [2024-12-01 23:16:56,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-12-01 23:16:56,169 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:16:56,169 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] [2024-12-01 23:16:56,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-01 23:16:56,169 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:16:56,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:16:56,169 INFO L85 PathProgramCache]: Analyzing trace with hash 69047324, now seen corresponding path program 1 times [2024-12-01 23:16:56,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:16:56,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556255771] [2024-12-01 23:16:56,170 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:16:56,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:16:56,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:16:56,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:16:56,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:16:56,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556255771] [2024-12-01 23:16:56,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556255771] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:16:56,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:16:56,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-01 23:16:56,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363412009] [2024-12-01 23:16:56,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:16:56,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-01 23:16:56,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:16:56,350 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-01 23:16:56,350 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-01 23:16:56,350 INFO L87 Difference]: Start difference. First operand 32114 states and 44847 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:56,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:16:56,941 INFO L93 Difference]: Finished difference Result 95962 states and 132668 transitions. [2024-12-01 23:16:56,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-01 23:16:56,941 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2024-12-01 23:16:56,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:16:57,025 INFO L225 Difference]: With dead ends: 95962 [2024-12-01 23:16:57,025 INFO L226 Difference]: Without dead ends: 84198 [2024-12-01 23:16:57,046 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-12-01 23:16:57,046 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 1473 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1473 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-01 23:16:57,046 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1473 Valid, 455 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-01 23:16:57,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84198 states. [2024-12-01 23:16:57,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84198 to 32278. [2024-12-01 23:16:57,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32278 states, 32277 states have (on average 1.3959475787712612) internal successors, (45057), 32277 states have internal predecessors, (45057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:57,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32278 states to 32278 states and 45057 transitions. [2024-12-01 23:16:57,648 INFO L78 Accepts]: Start accepts. Automaton has 32278 states and 45057 transitions. Word has length 74 [2024-12-01 23:16:57,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:16:57,649 INFO L471 AbstractCegarLoop]: Abstraction has 32278 states and 45057 transitions. [2024-12-01 23:16:57,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:57,649 INFO L276 IsEmpty]: Start isEmpty. Operand 32278 states and 45057 transitions. [2024-12-01 23:16:57,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-12-01 23:16:57,654 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:16:57,654 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] [2024-12-01 23:16:57,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-01 23:16:57,654 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:16:57,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:16:57,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1279435548, now seen corresponding path program 1 times [2024-12-01 23:16:57,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:16:57,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512592580] [2024-12-01 23:16:57,655 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:16:57,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:16:57,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:16:57,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:16:57,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:16:57,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512592580] [2024-12-01 23:16:57,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512592580] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:16:57,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:16:57,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-01 23:16:57,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770541197] [2024-12-01 23:16:57,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:16:57,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 23:16:57,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:16:57,746 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 23:16:57,746 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-01 23:16:57,746 INFO L87 Difference]: Start difference. First operand 32278 states and 45057 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:58,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:16:58,067 INFO L93 Difference]: Finished difference Result 76606 states and 106697 transitions. [2024-12-01 23:16:58,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-01 23:16:58,067 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2024-12-01 23:16:58,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:16:58,124 INFO L225 Difference]: With dead ends: 76606 [2024-12-01 23:16:58,124 INFO L226 Difference]: Without dead ends: 44538 [2024-12-01 23:16:58,145 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-01 23:16:58,145 INFO L435 NwaCegarLoop]: 142 mSDtfsCounter, 921 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 921 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-01 23:16:58,146 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [921 Valid, 233 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-01 23:16:58,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44538 states. [2024-12-01 23:16:58,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44538 to 32278. [2024-12-01 23:16:58,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32278 states, 32277 states have (on average 1.3853827803079592) internal successors, (44716), 32277 states have internal predecessors, (44716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:58,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32278 states to 32278 states and 44716 transitions. [2024-12-01 23:16:58,767 INFO L78 Accepts]: Start accepts. Automaton has 32278 states and 44716 transitions. Word has length 74 [2024-12-01 23:16:58,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:16:58,767 INFO L471 AbstractCegarLoop]: Abstraction has 32278 states and 44716 transitions. [2024-12-01 23:16:58,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:58,767 INFO L276 IsEmpty]: Start isEmpty. Operand 32278 states and 44716 transitions. [2024-12-01 23:16:58,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-12-01 23:16:58,770 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:16:58,770 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] [2024-12-01 23:16:58,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-01 23:16:58,770 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:16:58,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:16:58,770 INFO L85 PathProgramCache]: Analyzing trace with hash -722366272, now seen corresponding path program 1 times [2024-12-01 23:16:58,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:16:58,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637193967] [2024-12-01 23:16:58,771 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:16:58,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:16:58,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:16:58,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:16:58,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:16:58,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637193967] [2024-12-01 23:16:58,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637193967] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:16:58,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:16:58,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-01 23:16:58,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211839605] [2024-12-01 23:16:58,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:16:58,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-01 23:16:58,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:16:58,863 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-01 23:16:58,863 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-01 23:16:58,863 INFO L87 Difference]: Start difference. First operand 32278 states and 44716 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:59,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:16:59,259 INFO L93 Difference]: Finished difference Result 82998 states and 113695 transitions. [2024-12-01 23:16:59,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-01 23:16:59,259 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2024-12-01 23:16:59,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:16:59,310 INFO L225 Difference]: With dead ends: 82998 [2024-12-01 23:16:59,310 INFO L226 Difference]: Without dead ends: 61624 [2024-12-01 23:16:59,327 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-12-01 23:16:59,327 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 1179 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1179 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-01 23:16:59,327 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1179 Valid, 386 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-01 23:16:59,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61624 states. [2024-12-01 23:16:59,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61624 to 32328. [2024-12-01 23:16:59,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32328 states, 32327 states have (on average 1.385096049741702) internal successors, (44776), 32327 states have internal predecessors, (44776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:59,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32328 states to 32328 states and 44776 transitions. [2024-12-01 23:16:59,703 INFO L78 Accepts]: Start accepts. Automaton has 32328 states and 44776 transitions. Word has length 75 [2024-12-01 23:16:59,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:16:59,703 INFO L471 AbstractCegarLoop]: Abstraction has 32328 states and 44776 transitions. [2024-12-01 23:16:59,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:59,703 INFO L276 IsEmpty]: Start isEmpty. Operand 32328 states and 44776 transitions. [2024-12-01 23:16:59,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-12-01 23:16:59,707 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:16:59,707 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] [2024-12-01 23:16:59,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-01 23:16:59,707 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:16:59,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:16:59,707 INFO L85 PathProgramCache]: Analyzing trace with hash 176907680, now seen corresponding path program 1 times [2024-12-01 23:16:59,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:16:59,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29209892] [2024-12-01 23:16:59,708 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:16:59,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:16:59,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:16:59,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:16:59,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:16:59,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29209892] [2024-12-01 23:16:59,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29209892] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:16:59,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:16:59,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-01 23:16:59,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865382886] [2024-12-01 23:16:59,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:16:59,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-01 23:16:59,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:16:59,828 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-01 23:16:59,828 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-01 23:16:59,828 INFO L87 Difference]: Start difference. First operand 32328 states and 44776 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:17:00,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:17:00,362 INFO L93 Difference]: Finished difference Result 76593 states and 104787 transitions. [2024-12-01 23:17:00,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-01 23:17:00,363 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2024-12-01 23:17:00,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:17:00,413 INFO L225 Difference]: With dead ends: 76593 [2024-12-01 23:17:00,413 INFO L226 Difference]: Without dead ends: 70677 [2024-12-01 23:17:00,429 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-12-01 23:17:00,429 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 1382 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1382 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-01 23:17:00,429 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1382 Valid, 422 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-01 23:17:00,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70677 states. [2024-12-01 23:17:00,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70677 to 32616. [2024-12-01 23:17:00,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32616 states, 32615 states have (on average 1.3837191476314579) internal successors, (45130), 32615 states have internal predecessors, (45130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:17:00,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32616 states to 32616 states and 45130 transitions. [2024-12-01 23:17:00,819 INFO L78 Accepts]: Start accepts. Automaton has 32616 states and 45130 transitions. Word has length 75 [2024-12-01 23:17:00,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:17:00,820 INFO L471 AbstractCegarLoop]: Abstraction has 32616 states and 45130 transitions. [2024-12-01 23:17:00,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:17:00,820 INFO L276 IsEmpty]: Start isEmpty. Operand 32616 states and 45130 transitions. [2024-12-01 23:17:00,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-12-01 23:17:00,823 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:17:00,823 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] [2024-12-01 23:17:00,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-01 23:17:00,823 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:17:00,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:17:00,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1150805456, now seen corresponding path program 1 times [2024-12-01 23:17:00,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:17:00,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505481708] [2024-12-01 23:17:00,824 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:17:00,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:17:00,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:17:01,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:17:01,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:17:01,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505481708] [2024-12-01 23:17:01,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505481708] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:17:01,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:17:01,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-01 23:17:01,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534208918] [2024-12-01 23:17:01,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:17:01,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-01 23:17:01,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:17:01,136 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-01 23:17:01,137 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-01 23:17:01,137 INFO L87 Difference]: Start difference. First operand 32616 states and 45130 transitions. Second operand has 10 states, 10 states have (on average 7.6) internal successors, (76), 9 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:17:01,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:17:01,793 INFO L93 Difference]: Finished difference Result 57254 states and 78860 transitions. [2024-12-01 23:17:01,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-01 23:17:01,793 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.6) internal successors, (76), 9 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2024-12-01 23:17:01,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:17:01,830 INFO L225 Difference]: With dead ends: 57254 [2024-12-01 23:17:01,830 INFO L226 Difference]: Without dead ends: 47509 [2024-12-01 23:17:01,842 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2024-12-01 23:17:01,843 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 1239 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1239 SdHoareTripleChecker+Valid, 717 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-01 23:17:01,843 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1239 Valid, 717 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-01 23:17:01,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47509 states. [2024-12-01 23:17:02,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47509 to 32616. [2024-12-01 23:17:02,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32616 states, 32615 states have (on average 1.3832898972865246) internal successors, (45116), 32615 states have internal predecessors, (45116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:17:02,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32616 states to 32616 states and 45116 transitions. [2024-12-01 23:17:02,354 INFO L78 Accepts]: Start accepts. Automaton has 32616 states and 45116 transitions. Word has length 76 [2024-12-01 23:17:02,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:17:02,354 INFO L471 AbstractCegarLoop]: Abstraction has 32616 states and 45116 transitions. [2024-12-01 23:17:02,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.6) internal successors, (76), 9 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:17:02,354 INFO L276 IsEmpty]: Start isEmpty. Operand 32616 states and 45116 transitions. [2024-12-01 23:17:02,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-12-01 23:17:02,359 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:17:02,359 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] [2024-12-01 23:17:02,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-01 23:17:02,359 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:17:02,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:17:02,360 INFO L85 PathProgramCache]: Analyzing trace with hash -600120612, now seen corresponding path program 1 times [2024-12-01 23:17:02,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:17:02,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633511463] [2024-12-01 23:17:02,360 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:17:02,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:17:02,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:17:03,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:17:03,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:17:03,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633511463] [2024-12-01 23:17:03,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633511463] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:17:03,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:17:03,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-01 23:17:03,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513774263] [2024-12-01 23:17:03,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:17:03,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-01 23:17:03,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:17:03,114 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-01 23:17:03,114 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-12-01 23:17:03,115 INFO L87 Difference]: Start difference. First operand 32616 states and 45116 transitions. Second operand has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 13 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:17:04,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:17:04,045 INFO L93 Difference]: Finished difference Result 62087 states and 85892 transitions. [2024-12-01 23:17:04,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-01 23:17:04,045 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 13 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-12-01 23:17:04,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:17:04,097 INFO L225 Difference]: With dead ends: 62087 [2024-12-01 23:17:04,097 INFO L226 Difference]: Without dead ends: 58247 [2024-12-01 23:17:04,110 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-12-01 23:17:04,111 INFO L435 NwaCegarLoop]: 229 mSDtfsCounter, 1407 mSDsluCounter, 1382 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1407 SdHoareTripleChecker+Valid, 1611 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-01 23:17:04,111 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1407 Valid, 1611 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-01 23:17:04,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58247 states. [2024-12-01 23:17:04,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58247 to 32668. [2024-12-01 23:17:04,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32668 states, 32667 states have (on average 1.382771604371384) internal successors, (45171), 32667 states have internal predecessors, (45171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:17:04,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32668 states to 32668 states and 45171 transitions. [2024-12-01 23:17:04,651 INFO L78 Accepts]: Start accepts. Automaton has 32668 states and 45171 transitions. Word has length 77 [2024-12-01 23:17:04,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:17:04,651 INFO L471 AbstractCegarLoop]: Abstraction has 32668 states and 45171 transitions. [2024-12-01 23:17:04,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 13 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:17:04,651 INFO L276 IsEmpty]: Start isEmpty. Operand 32668 states and 45171 transitions. [2024-12-01 23:17:04,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-12-01 23:17:04,656 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:17:04,656 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:17:04,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-01 23:17:04,657 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:17:04,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:17:04,657 INFO L85 PathProgramCache]: Analyzing trace with hash 498942260, now seen corresponding path program 1 times [2024-12-01 23:17:04,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:17:04,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510336740] [2024-12-01 23:17:04,657 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:17:04,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:17:04,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:17:05,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:17:05,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:17:05,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510336740] [2024-12-01 23:17:05,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510336740] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:17:05,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:17:05,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-01 23:17:05,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491105349] [2024-12-01 23:17:05,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:17:05,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-01 23:17:05,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:17:05,016 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-01 23:17:05,016 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-12-01 23:17:05,016 INFO L87 Difference]: Start difference. First operand 32668 states and 45171 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:17:05,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:17:05,657 INFO L93 Difference]: Finished difference Result 81431 states and 112497 transitions. [2024-12-01 23:17:05,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-01 23:17:05,658 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-12-01 23:17:05,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:17:05,703 INFO L225 Difference]: With dead ends: 81431 [2024-12-01 23:17:05,703 INFO L226 Difference]: Without dead ends: 53345 [2024-12-01 23:17:05,720 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-12-01 23:17:05,721 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 1203 mSDsluCounter, 605 mSDsCounter, 0 mSdLazyCounter, 598 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1203 SdHoareTripleChecker+Valid, 751 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-01 23:17:05,721 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1203 Valid, 751 Invalid, 610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 598 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-01 23:17:05,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53345 states. [2024-12-01 23:17:06,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53345 to 32578. [2024-12-01 23:17:06,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32578 states, 32577 states have (on average 1.3818645056328085) internal successors, (45017), 32577 states have internal predecessors, (45017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:17:06,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32578 states to 32578 states and 45017 transitions. [2024-12-01 23:17:06,120 INFO L78 Accepts]: Start accepts. Automaton has 32578 states and 45017 transitions. Word has length 77 [2024-12-01 23:17:06,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:17:06,120 INFO L471 AbstractCegarLoop]: Abstraction has 32578 states and 45017 transitions. [2024-12-01 23:17:06,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:17:06,120 INFO L276 IsEmpty]: Start isEmpty. Operand 32578 states and 45017 transitions. [2024-12-01 23:17:06,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-12-01 23:17:06,125 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:17:06,125 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] [2024-12-01 23:17:06,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-01 23:17:06,125 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:17:06,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:17:06,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1797529622, now seen corresponding path program 1 times [2024-12-01 23:17:06,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:17:06,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781811458] [2024-12-01 23:17:06,126 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:17:06,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:17:06,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:17:06,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:17:06,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:17:06,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781811458] [2024-12-01 23:17:06,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781811458] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:17:06,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:17:06,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-01 23:17:06,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662678381] [2024-12-01 23:17:06,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:17:06,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-01 23:17:06,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:17:06,466 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-01 23:17:06,466 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-01 23:17:06,466 INFO L87 Difference]: Start difference. First operand 32578 states and 45017 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:17:07,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:17:07,093 INFO L93 Difference]: Finished difference Result 68091 states and 94079 transitions. [2024-12-01 23:17:07,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-01 23:17:07,094 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-12-01 23:17:07,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:17:07,126 INFO L225 Difference]: With dead ends: 68091 [2024-12-01 23:17:07,126 INFO L226 Difference]: Without dead ends: 48341 [2024-12-01 23:17:07,139 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2024-12-01 23:17:07,139 INFO L435 NwaCegarLoop]: 203 mSDtfsCounter, 1071 mSDsluCounter, 824 mSDsCounter, 0 mSdLazyCounter, 807 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1071 SdHoareTripleChecker+Valid, 1027 SdHoareTripleChecker+Invalid, 817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-01 23:17:07,139 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1071 Valid, 1027 Invalid, 817 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 807 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-01 23:17:07,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48341 states. [2024-12-01 23:17:07,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48341 to 32521. [2024-12-01 23:17:07,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32521 states, 32520 states have (on average 1.380319803198032) internal successors, (44888), 32520 states have internal predecessors, (44888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:17:07,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32521 states to 32521 states and 44888 transitions. [2024-12-01 23:17:07,464 INFO L78 Accepts]: Start accepts. Automaton has 32521 states and 44888 transitions. Word has length 77 [2024-12-01 23:17:07,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:17:07,465 INFO L471 AbstractCegarLoop]: Abstraction has 32521 states and 44888 transitions. [2024-12-01 23:17:07,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:17:07,465 INFO L276 IsEmpty]: Start isEmpty. Operand 32521 states and 44888 transitions. [2024-12-01 23:17:07,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-12-01 23:17:07,467 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:17:07,467 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:17:07,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-01 23:17:07,468 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:17:07,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:17:07,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1287599120, now seen corresponding path program 1 times [2024-12-01 23:17:07,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:17:07,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883428418] [2024-12-01 23:17:07,468 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:17:07,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:17:07,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:17:07,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:17:07,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:17:07,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883428418] [2024-12-01 23:17:07,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883428418] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:17:07,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:17:07,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-01 23:17:07,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590482217] [2024-12-01 23:17:07,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:17:07,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-01 23:17:07,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:17:07,967 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-01 23:17:07,967 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-12-01 23:17:07,967 INFO L87 Difference]: Start difference. First operand 32521 states and 44888 transitions. Second operand has 13 states, 13 states have (on average 6.0) internal successors, (78), 13 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:17:08,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:17:08,728 INFO L93 Difference]: Finished difference Result 73007 states and 101213 transitions. [2024-12-01 23:17:08,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-01 23:17:08,729 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.0) internal successors, (78), 13 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-12-01 23:17:08,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:17:08,774 INFO L225 Difference]: With dead ends: 73007 [2024-12-01 23:17:08,774 INFO L226 Difference]: Without dead ends: 59972 [2024-12-01 23:17:08,788 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-12-01 23:17:08,788 INFO L435 NwaCegarLoop]: 257 mSDtfsCounter, 1345 mSDsluCounter, 1733 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1345 SdHoareTripleChecker+Valid, 1990 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-01 23:17:08,789 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1345 Valid, 1990 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-01 23:17:08,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59972 states. [2024-12-01 23:17:09,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59972 to 32336. [2024-12-01 23:17:09,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32336 states, 32335 states have (on average 1.380918509355188) internal successors, (44652), 32335 states have internal predecessors, (44652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:17:09,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32336 states to 32336 states and 44652 transitions. [2024-12-01 23:17:09,131 INFO L78 Accepts]: Start accepts. Automaton has 32336 states and 44652 transitions. Word has length 78 [2024-12-01 23:17:09,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:17:09,131 INFO L471 AbstractCegarLoop]: Abstraction has 32336 states and 44652 transitions. [2024-12-01 23:17:09,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.0) internal successors, (78), 13 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:17:09,131 INFO L276 IsEmpty]: Start isEmpty. Operand 32336 states and 44652 transitions. [2024-12-01 23:17:09,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-12-01 23:17:09,134 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:17:09,134 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:17:09,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-01 23:17:09,134 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:17:09,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:17:09,134 INFO L85 PathProgramCache]: Analyzing trace with hash -446802221, now seen corresponding path program 1 times [2024-12-01 23:17:09,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:17:09,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364824635] [2024-12-01 23:17:09,135 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:17:09,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:17:09,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:17:09,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:17:09,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:17:09,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364824635] [2024-12-01 23:17:09,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364824635] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:17:09,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:17:09,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 23:17:09,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697507079] [2024-12-01 23:17:09,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:17:09,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 23:17:09,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:17:09,178 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 23:17:09,178 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:17:09,178 INFO L87 Difference]: Start difference. First operand 32336 states and 44652 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:17:09,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:17:09,318 INFO L93 Difference]: Finished difference Result 67951 states and 93925 transitions. [2024-12-01 23:17:09,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 23:17:09,318 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-12-01 23:17:09,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:17:09,349 INFO L225 Difference]: With dead ends: 67951 [2024-12-01 23:17:09,349 INFO L226 Difference]: Without dead ends: 46223 [2024-12-01 23:17:09,361 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:17:09,361 INFO L435 NwaCegarLoop]: 280 mSDtfsCounter, 173 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:17:09,362 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 405 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:17:09,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46223 states. [2024-12-01 23:17:09,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46223 to 46053. [2024-12-01 23:17:09,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46053 states, 46052 states have (on average 1.3845869886215583) internal successors, (63763), 46052 states have internal predecessors, (63763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:17:09,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46053 states to 46053 states and 63763 transitions. [2024-12-01 23:17:09,686 INFO L78 Accepts]: Start accepts. Automaton has 46053 states and 63763 transitions. Word has length 78 [2024-12-01 23:17:09,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:17:09,686 INFO L471 AbstractCegarLoop]: Abstraction has 46053 states and 63763 transitions. [2024-12-01 23:17:09,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:17:09,686 INFO L276 IsEmpty]: Start isEmpty. Operand 46053 states and 63763 transitions. [2024-12-01 23:17:09,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-12-01 23:17:09,689 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:17:09,689 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:17:09,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-01 23:17:09,689 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:17:09,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:17:09,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1238183559, now seen corresponding path program 1 times [2024-12-01 23:17:09,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:17:09,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9220308] [2024-12-01 23:17:09,690 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:17:09,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:17:09,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:17:09,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:17:09,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:17:09,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9220308] [2024-12-01 23:17:09,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9220308] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:17:09,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:17:09,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-01 23:17:09,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392244378] [2024-12-01 23:17:09,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:17:09,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-01 23:17:09,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:17:09,925 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-01 23:17:09,925 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-12-01 23:17:09,925 INFO L87 Difference]: Start difference. First operand 46053 states and 63763 transitions. Second operand has 10 states, 10 states have (on average 8.1) internal successors, (81), 9 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:17:10,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:17:10,650 INFO L93 Difference]: Finished difference Result 132488 states and 183564 transitions. [2024-12-01 23:17:10,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-01 23:17:10,651 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.1) internal successors, (81), 9 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-12-01 23:17:10,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:17:10,719 INFO L225 Difference]: With dead ends: 132488 [2024-12-01 23:17:10,719 INFO L226 Difference]: Without dead ends: 87351 [2024-12-01 23:17:10,746 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-12-01 23:17:10,747 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 613 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 613 SdHoareTripleChecker+Valid, 849 SdHoareTripleChecker+Invalid, 636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-01 23:17:10,747 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [613 Valid, 849 Invalid, 636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 628 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-01 23:17:10,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87351 states. [2024-12-01 23:17:11,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87351 to 45854. [2024-12-01 23:17:11,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45854 states, 45853 states have (on average 1.3847730791878394) internal successors, (63496), 45853 states have internal predecessors, (63496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:17:11,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45854 states to 45854 states and 63496 transitions. [2024-12-01 23:17:11,319 INFO L78 Accepts]: Start accepts. Automaton has 45854 states and 63496 transitions. Word has length 81 [2024-12-01 23:17:11,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:17:11,319 INFO L471 AbstractCegarLoop]: Abstraction has 45854 states and 63496 transitions. [2024-12-01 23:17:11,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.1) internal successors, (81), 9 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:17:11,319 INFO L276 IsEmpty]: Start isEmpty. Operand 45854 states and 63496 transitions. [2024-12-01 23:17:11,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-12-01 23:17:11,322 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:17:11,323 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:17:11,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-01 23:17:11,323 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:17:11,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:17:11,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1749037199, now seen corresponding path program 1 times [2024-12-01 23:17:11,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:17:11,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60762909] [2024-12-01 23:17:11,323 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:17:11,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:17:11,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:17:11,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:17:11,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:17:11,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60762909] [2024-12-01 23:17:11,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60762909] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:17:11,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:17:11,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 23:17:11,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101352256] [2024-12-01 23:17:11,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:17:11,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 23:17:11,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:17:11,378 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 23:17:11,378 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:17:11,378 INFO L87 Difference]: Start difference. First operand 45854 states and 63496 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:17:11,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:17:11,510 INFO L93 Difference]: Finished difference Result 67140 states and 92764 transitions. [2024-12-01 23:17:11,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 23:17:11,511 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-12-01 23:17:11,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:17:11,546 INFO L225 Difference]: With dead ends: 67140 [2024-12-01 23:17:11,546 INFO L226 Difference]: Without dead ends: 40950 [2024-12-01 23:17:11,560 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:17:11,561 INFO L435 NwaCegarLoop]: 288 mSDtfsCounter, 142 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:17:11,561 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 487 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:17:11,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40950 states. [2024-12-01 23:17:11,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40950 to 40948. [2024-12-01 23:17:11,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40948 states, 40947 states have (on average 1.3681588394754194) internal successors, (56022), 40947 states have internal predecessors, (56022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:17:11,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40948 states to 40948 states and 56022 transitions. [2024-12-01 23:17:11,905 INFO L78 Accepts]: Start accepts. Automaton has 40948 states and 56022 transitions. Word has length 82 [2024-12-01 23:17:11,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:17:11,906 INFO L471 AbstractCegarLoop]: Abstraction has 40948 states and 56022 transitions. [2024-12-01 23:17:11,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:17:11,906 INFO L276 IsEmpty]: Start isEmpty. Operand 40948 states and 56022 transitions. [2024-12-01 23:17:11,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-12-01 23:17:11,909 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:17:11,909 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] [2024-12-01 23:17:11,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-12-01 23:17:11,910 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:17:11,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:17:11,910 INFO L85 PathProgramCache]: Analyzing trace with hash -553800577, now seen corresponding path program 1 times [2024-12-01 23:17:11,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:17:11,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056792853] [2024-12-01 23:17:11,910 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:17:11,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:17:11,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:17:12,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:17:12,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:17:12,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056792853] [2024-12-01 23:17:12,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056792853] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:17:12,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:17:12,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-01 23:17:12,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819372996] [2024-12-01 23:17:12,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:17:12,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-01 23:17:12,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:17:12,440 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-01 23:17:12,440 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-12-01 23:17:12,441 INFO L87 Difference]: Start difference. First operand 40948 states and 56022 transitions. Second operand has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:17:13,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:17:13,361 INFO L93 Difference]: Finished difference Result 128918 states and 176305 transitions. [2024-12-01 23:17:13,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-01 23:17:13,362 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2024-12-01 23:17:13,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:17:13,468 INFO L225 Difference]: With dead ends: 128918 [2024-12-01 23:17:13,468 INFO L226 Difference]: Without dead ends: 122529 [2024-12-01 23:17:13,491 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=166, Invalid=434, Unknown=0, NotChecked=0, Total=600 [2024-12-01 23:17:13,492 INFO L435 NwaCegarLoop]: 245 mSDtfsCounter, 1812 mSDsluCounter, 1446 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1812 SdHoareTripleChecker+Valid, 1691 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-01 23:17:13,492 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1812 Valid, 1691 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-01 23:17:13,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122529 states. [2024-12-01 23:17:14,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122529 to 39784. [2024-12-01 23:17:14,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39784 states, 39783 states have (on average 1.3689012894955133) internal successors, (54459), 39783 states have internal predecessors, (54459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:17:14,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39784 states to 39784 states and 54459 transitions. [2024-12-01 23:17:14,247 INFO L78 Accepts]: Start accepts. Automaton has 39784 states and 54459 transitions. Word has length 83 [2024-12-01 23:17:14,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:17:14,247 INFO L471 AbstractCegarLoop]: Abstraction has 39784 states and 54459 transitions. [2024-12-01 23:17:14,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:17:14,248 INFO L276 IsEmpty]: Start isEmpty. Operand 39784 states and 54459 transitions. [2024-12-01 23:17:14,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-12-01 23:17:14,250 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:17:14,251 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] [2024-12-01 23:17:14,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-12-01 23:17:14,251 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:17:14,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:17:14,251 INFO L85 PathProgramCache]: Analyzing trace with hash -936008935, now seen corresponding path program 1 times [2024-12-01 23:17:14,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:17:14,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331351336] [2024-12-01 23:17:14,251 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:17:14,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:17:14,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:17:14,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:17:14,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:17:14,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331351336] [2024-12-01 23:17:14,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331351336] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:17:14,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:17:14,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 23:17:14,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529442986] [2024-12-01 23:17:14,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:17:14,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 23:17:14,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:17:14,284 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 23:17:14,284 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:17:14,284 INFO L87 Difference]: Start difference. First operand 39784 states and 54459 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:17:14,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:17:14,420 INFO L93 Difference]: Finished difference Result 78848 states and 107969 transitions. [2024-12-01 23:17:14,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 23:17:14,421 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2024-12-01 23:17:14,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:17:14,458 INFO L225 Difference]: With dead ends: 78848 [2024-12-01 23:17:14,459 INFO L226 Difference]: Without dead ends: 54406 [2024-12-01 23:17:14,472 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:17:14,473 INFO L435 NwaCegarLoop]: 216 mSDtfsCounter, 161 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:17:14,473 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 336 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:17:14,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54406 states. [2024-12-01 23:17:14,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54406 to 34535. [2024-12-01 23:17:14,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34535 states, 34534 states have (on average 1.3700411188973185) internal successors, (47313), 34534 states have internal predecessors, (47313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:17:14,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34535 states to 34535 states and 47313 transitions. [2024-12-01 23:17:14,844 INFO L78 Accepts]: Start accepts. Automaton has 34535 states and 47313 transitions. Word has length 83 [2024-12-01 23:17:14,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:17:14,844 INFO L471 AbstractCegarLoop]: Abstraction has 34535 states and 47313 transitions. [2024-12-01 23:17:14,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:17:14,844 INFO L276 IsEmpty]: Start isEmpty. Operand 34535 states and 47313 transitions. [2024-12-01 23:17:14,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-12-01 23:17:14,849 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:17:14,849 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:17:14,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-12-01 23:17:14,850 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:17:14,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:17:14,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1131624093, now seen corresponding path program 1 times [2024-12-01 23:17:14,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:17:14,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920429847] [2024-12-01 23:17:14,850 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:17:14,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:17:14,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:17:14,911 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:17:14,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:17:14,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920429847] [2024-12-01 23:17:14,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920429847] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:17:14,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:17:14,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 23:17:14,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980603124] [2024-12-01 23:17:14,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:17:14,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 23:17:14,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:17:14,912 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 23:17:14,912 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:17:14,912 INFO L87 Difference]: Start difference. First operand 34535 states and 47313 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:17:15,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:17:15,040 INFO L93 Difference]: Finished difference Result 75140 states and 103534 transitions. [2024-12-01 23:17:15,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 23:17:15,040 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2024-12-01 23:17:15,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:17:15,081 INFO L225 Difference]: With dead ends: 75140 [2024-12-01 23:17:15,081 INFO L226 Difference]: Without dead ends: 54293 [2024-12-01 23:17:15,097 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:17:15,097 INFO L435 NwaCegarLoop]: 307 mSDtfsCounter, 117 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:17:15,097 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 488 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:17:15,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54293 states. [2024-12-01 23:17:15,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54293 to 52485. [2024-12-01 23:17:15,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52485 states, 52484 states have (on average 1.3663211645453852) internal successors, (71710), 52484 states have internal predecessors, (71710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:17:15,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52485 states to 52485 states and 71710 transitions. [2024-12-01 23:17:15,552 INFO L78 Accepts]: Start accepts. Automaton has 52485 states and 71710 transitions. Word has length 91 [2024-12-01 23:17:15,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:17:15,552 INFO L471 AbstractCegarLoop]: Abstraction has 52485 states and 71710 transitions. [2024-12-01 23:17:15,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:17:15,552 INFO L276 IsEmpty]: Start isEmpty. Operand 52485 states and 71710 transitions. [2024-12-01 23:17:15,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-12-01 23:17:15,556 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:17:15,556 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:17:15,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-12-01 23:17:15,556 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:17:15,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:17:15,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1984656451, now seen corresponding path program 1 times [2024-12-01 23:17:15,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:17:15,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454715411] [2024-12-01 23:17:15,557 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:17:15,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:17:15,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:17:15,641 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:17:15,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:17:15,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454715411] [2024-12-01 23:17:15,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454715411] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:17:15,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:17:15,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-01 23:17:15,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971586681] [2024-12-01 23:17:15,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:17:15,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-01 23:17:15,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:17:15,642 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-01 23:17:15,642 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-01 23:17:15,642 INFO L87 Difference]: Start difference. First operand 52485 states and 71710 transitions. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:17:16,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:17:16,083 INFO L93 Difference]: Finished difference Result 107565 states and 147409 transitions. [2024-12-01 23:17:16,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-01 23:17:16,084 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2024-12-01 23:17:16,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:17:16,160 INFO L225 Difference]: With dead ends: 107565 [2024-12-01 23:17:16,160 INFO L226 Difference]: Without dead ends: 86603 [2024-12-01 23:17:16,270 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-12-01 23:17:16,270 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 1577 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1577 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-01 23:17:16,270 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1577 Valid, 435 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-01 23:17:16,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86603 states. [2024-12-01 23:17:16,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86603 to 53287. [2024-12-01 23:17:16,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53287 states, 53286 states have (on average 1.3652178808692714) internal successors, (72747), 53286 states have internal predecessors, (72747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:17:16,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53287 states to 53287 states and 72747 transitions. [2024-12-01 23:17:16,803 INFO L78 Accepts]: Start accepts. Automaton has 53287 states and 72747 transitions. Word has length 97 [2024-12-01 23:17:16,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:17:16,803 INFO L471 AbstractCegarLoop]: Abstraction has 53287 states and 72747 transitions. [2024-12-01 23:17:16,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:17:16,803 INFO L276 IsEmpty]: Start isEmpty. Operand 53287 states and 72747 transitions. [2024-12-01 23:17:16,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-12-01 23:17:16,807 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:17:16,807 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:17:16,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-12-01 23:17:16,807 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:17:16,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:17:16,807 INFO L85 PathProgramCache]: Analyzing trace with hash 884546393, now seen corresponding path program 1 times [2024-12-01 23:17:16,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:17:16,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616450805] [2024-12-01 23:17:16,808 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:17:16,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:17:16,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:17:16,915 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:17:16,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:17:16,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616450805] [2024-12-01 23:17:16,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616450805] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:17:16,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:17:16,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-01 23:17:16,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136099094] [2024-12-01 23:17:16,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:17:16,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-01 23:17:16,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:17:16,916 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-01 23:17:16,916 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-01 23:17:16,916 INFO L87 Difference]: Start difference. First operand 53287 states and 72747 transitions. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 6 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:17:17,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:17:17,493 INFO L93 Difference]: Finished difference Result 186051 states and 255425 transitions. [2024-12-01 23:17:17,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-01 23:17:17,494 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 6 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2024-12-01 23:17:17,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:17:17,650 INFO L225 Difference]: With dead ends: 186051 [2024-12-01 23:17:17,650 INFO L226 Difference]: Without dead ends: 149093 [2024-12-01 23:17:17,687 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-12-01 23:17:17,688 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 1401 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1401 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-01 23:17:17,688 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1401 Valid, 430 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-01 23:17:17,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149093 states. [2024-12-01 23:17:18,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149093 to 81991. [2024-12-01 23:17:18,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81991 states, 81990 states have (on average 1.3825954384681058) internal successors, (113359), 81990 states have internal predecessors, (113359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:17:18,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81991 states to 81991 states and 113359 transitions. [2024-12-01 23:17:18,713 INFO L78 Accepts]: Start accepts. Automaton has 81991 states and 113359 transitions. Word has length 99 [2024-12-01 23:17:18,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:17:18,713 INFO L471 AbstractCegarLoop]: Abstraction has 81991 states and 113359 transitions. [2024-12-01 23:17:18,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 6 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:17:18,713 INFO L276 IsEmpty]: Start isEmpty. Operand 81991 states and 113359 transitions. [2024-12-01 23:17:18,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-12-01 23:17:18,796 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:17:18,796 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:17:18,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-12-01 23:17:18,796 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:17:18,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:17:18,797 INFO L85 PathProgramCache]: Analyzing trace with hash -1927017373, now seen corresponding path program 1 times [2024-12-01 23:17:18,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:17:18,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618725107] [2024-12-01 23:17:18,797 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:17:18,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:17:18,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:17:18,883 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:17:18,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:17:18,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618725107] [2024-12-01 23:17:18,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618725107] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:17:18,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:17:18,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-01 23:17:18,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83890302] [2024-12-01 23:17:18,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:17:18,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-01 23:17:18,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:17:18,884 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-01 23:17:18,884 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-01 23:17:18,884 INFO L87 Difference]: Start difference. First operand 81991 states and 113359 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:17:19,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:17:19,535 INFO L93 Difference]: Finished difference Result 216111 states and 298380 transitions. [2024-12-01 23:17:19,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-01 23:17:19,536 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2024-12-01 23:17:19,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:17:19,718 INFO L225 Difference]: With dead ends: 216111 [2024-12-01 23:17:19,718 INFO L226 Difference]: Without dead ends: 182158 [2024-12-01 23:17:19,761 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-12-01 23:17:19,761 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 1282 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1282 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-01 23:17:19,761 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1282 Valid, 410 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-01 23:17:19,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182158 states. [2024-12-01 23:17:20,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182158 to 118820. [2024-12-01 23:17:20,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118820 states, 118819 states have (on average 1.3827838981980995) internal successors, (164301), 118819 states have internal predecessors, (164301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:17:20,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118820 states to 118820 states and 164301 transitions. [2024-12-01 23:17:20,972 INFO L78 Accepts]: Start accepts. Automaton has 118820 states and 164301 transitions. Word has length 101 [2024-12-01 23:17:20,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:17:20,972 INFO L471 AbstractCegarLoop]: Abstraction has 118820 states and 164301 transitions. [2024-12-01 23:17:20,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:17:20,972 INFO L276 IsEmpty]: Start isEmpty. Operand 118820 states and 164301 transitions. [2024-12-01 23:17:20,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-12-01 23:17:20,986 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:17:20,986 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:17:20,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-12-01 23:17:20,986 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:17:20,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:17:20,987 INFO L85 PathProgramCache]: Analyzing trace with hash 1866483090, now seen corresponding path program 1 times [2024-12-01 23:17:20,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:17:20,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820058662] [2024-12-01 23:17:20,987 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:17:20,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:17:21,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:17:21,059 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-12-01 23:17:21,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:17:21,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820058662] [2024-12-01 23:17:21,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820058662] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:17:21,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:17:21,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 23:17:21,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781250308] [2024-12-01 23:17:21,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:17:21,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 23:17:21,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:17:21,060 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 23:17:21,060 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:17:21,060 INFO L87 Difference]: Start difference. First operand 118820 states and 164301 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:17:21,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:17:21,827 INFO L93 Difference]: Finished difference Result 279368 states and 384755 transitions. [2024-12-01 23:17:21,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 23:17:21,828 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2024-12-01 23:17:21,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:17:21,979 INFO L225 Difference]: With dead ends: 279368 [2024-12-01 23:17:21,979 INFO L226 Difference]: Without dead ends: 161855 [2024-12-01 23:17:22,015 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:17:22,015 INFO L435 NwaCegarLoop]: 282 mSDtfsCounter, 107 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:17:22,015 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 472 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:17:22,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161855 states. [2024-12-01 23:17:23,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161855 to 152716. [2024-12-01 23:17:23,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152716 states, 152715 states have (on average 1.3668074517892808) internal successors, (208732), 152715 states have internal predecessors, (208732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:17:24,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152716 states to 152716 states and 208732 transitions. [2024-12-01 23:17:24,014 INFO L78 Accepts]: Start accepts. Automaton has 152716 states and 208732 transitions. Word has length 113 [2024-12-01 23:17:24,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:17:24,014 INFO L471 AbstractCegarLoop]: Abstraction has 152716 states and 208732 transitions. [2024-12-01 23:17:24,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:17:24,014 INFO L276 IsEmpty]: Start isEmpty. Operand 152716 states and 208732 transitions. [2024-12-01 23:17:24,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-12-01 23:17:24,032 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:17:24,032 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:17:24,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-12-01 23:17:24,033 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:17:24,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:17:24,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1601031460, now seen corresponding path program 1 times [2024-12-01 23:17:24,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:17:24,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425323103] [2024-12-01 23:17:24,033 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:17:24,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:17:24,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:17:24,126 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-01 23:17:24,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:17:24,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425323103] [2024-12-01 23:17:24,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425323103] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:17:24,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:17:24,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 23:17:24,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531996904] [2024-12-01 23:17:24,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:17:24,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 23:17:24,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:17:24,127 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 23:17:24,127 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:17:24,127 INFO L87 Difference]: Start difference. First operand 152716 states and 208732 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:17:25,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:17:25,114 INFO L93 Difference]: Finished difference Result 353798 states and 480380 transitions. [2024-12-01 23:17:25,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 23:17:25,114 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2024-12-01 23:17:25,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:17:25,339 INFO L225 Difference]: With dead ends: 353798 [2024-12-01 23:17:25,339 INFO L226 Difference]: Without dead ends: 202317 [2024-12-01 23:17:25,392 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:17:25,393 INFO L435 NwaCegarLoop]: 266 mSDtfsCounter, 96 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:17:25,393 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 466 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:17:25,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202317 states. [2024-12-01 23:17:27,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202317 to 182739. [2024-12-01 23:17:27,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182739 states, 182738 states have (on average 1.3386433035274545) internal successors, (244621), 182738 states have internal predecessors, (244621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:17:27,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182739 states to 182739 states and 244621 transitions. [2024-12-01 23:17:27,784 INFO L78 Accepts]: Start accepts. Automaton has 182739 states and 244621 transitions. Word has length 114 [2024-12-01 23:17:27,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:17:27,784 INFO L471 AbstractCegarLoop]: Abstraction has 182739 states and 244621 transitions. [2024-12-01 23:17:27,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:17:27,784 INFO L276 IsEmpty]: Start isEmpty. Operand 182739 states and 244621 transitions. [2024-12-01 23:17:27,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-12-01 23:17:27,793 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:17:27,794 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:17:27,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-12-01 23:17:27,794 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:17:27,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:17:27,794 INFO L85 PathProgramCache]: Analyzing trace with hash 724944719, now seen corresponding path program 1 times [2024-12-01 23:17:27,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:17:27,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919040991] [2024-12-01 23:17:27,794 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:17:27,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:17:27,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:17:27,859 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-12-01 23:17:27,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:17:27,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919040991] [2024-12-01 23:17:27,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919040991] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:17:27,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:17:27,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 23:17:27,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573308488] [2024-12-01 23:17:27,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:17:27,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 23:17:27,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:17:27,861 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 23:17:27,861 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:17:27,861 INFO L87 Difference]: Start difference. First operand 182739 states and 244621 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:17:29,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:17:29,080 INFO L93 Difference]: Finished difference Result 499695 states and 668782 transitions. [2024-12-01 23:17:29,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 23:17:29,081 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2024-12-01 23:17:29,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:17:29,373 INFO L225 Difference]: With dead ends: 499695 [2024-12-01 23:17:29,373 INFO L226 Difference]: Without dead ends: 305788 [2024-12-01 23:17:29,471 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:17:29,472 INFO L435 NwaCegarLoop]: 250 mSDtfsCounter, 85 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:17:29,472 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 459 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:17:29,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305788 states. [2024-12-01 23:17:31,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305788 to 274584. [2024-12-01 23:17:32,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274584 states, 274583 states have (on average 1.32895700025129) internal successors, (364909), 274583 states have internal predecessors, (364909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:17:32,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274584 states to 274584 states and 364909 transitions. [2024-12-01 23:17:32,478 INFO L78 Accepts]: Start accepts. Automaton has 274584 states and 364909 transitions. Word has length 115 [2024-12-01 23:17:32,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:17:32,478 INFO L471 AbstractCegarLoop]: Abstraction has 274584 states and 364909 transitions. [2024-12-01 23:17:32,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:17:32,478 INFO L276 IsEmpty]: Start isEmpty. Operand 274584 states and 364909 transitions. [2024-12-01 23:17:32,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-12-01 23:17:32,486 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:17:32,486 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:17:32,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-12-01 23:17:32,486 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:17:32,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:17:32,486 INFO L85 PathProgramCache]: Analyzing trace with hash -18494371, now seen corresponding path program 1 times [2024-12-01 23:17:32,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:17:32,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219512627] [2024-12-01 23:17:32,486 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:17:32,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:17:32,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:17:32,680 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-12-01 23:17:32,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:17:32,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219512627] [2024-12-01 23:17:32,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219512627] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 23:17:32,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1797004567] [2024-12-01 23:17:32,681 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:17:32,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 23:17:32,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e337800e-2ed8-4e71-83ba-7ab44ea9b8fe/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 23:17:32,683 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e337800e-2ed8-4e71-83ba-7ab44ea9b8fe/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 23:17:32,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e337800e-2ed8-4e71-83ba-7ab44ea9b8fe/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-01 23:17:32,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:17:32,848 INFO L256 TraceCheckSpWp]: Trace formula consists of 559 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-01 23:17:32,853 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 23:17:34,405 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 13 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:17:34,405 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 23:17:35,796 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 13 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:17:35,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1797004567] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-01 23:17:35,796 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-01 23:17:35,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 13, 13] total 29 [2024-12-01 23:17:35,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567387681] [2024-12-01 23:17:35,796 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-01 23:17:35,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-12-01 23:17:35,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:17:35,797 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-12-01 23:17:35,798 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=705, Unknown=0, NotChecked=0, Total=812 [2024-12-01 23:17:35,798 INFO L87 Difference]: Start difference. First operand 274584 states and 364909 transitions. Second operand has 29 states, 29 states have (on average 11.413793103448276) internal successors, (331), 29 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:18:10,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:18:10,234 INFO L93 Difference]: Finished difference Result 2207191 states and 2869957 transitions. [2024-12-01 23:18:10,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 384 states. [2024-12-01 23:18:10,234 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 11.413793103448276) internal successors, (331), 29 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2024-12-01 23:18:10,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:18:12,495 INFO L225 Difference]: With dead ends: 2207191 [2024-12-01 23:18:12,495 INFO L226 Difference]: Without dead ends: 1982018 [2024-12-01 23:18:13,041 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 619 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 407 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75615 ImplicationChecksByTransitivity, 20.1s TimeCoverageRelationStatistics Valid=15641, Invalid=151231, Unknown=0, NotChecked=0, Total=166872 [2024-12-01 23:18:13,042 INFO L435 NwaCegarLoop]: 903 mSDtfsCounter, 13024 mSDsluCounter, 15509 mSDsCounter, 0 mSdLazyCounter, 13419 mSolverCounterSat, 217 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13024 SdHoareTripleChecker+Valid, 16412 SdHoareTripleChecker+Invalid, 13636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 217 IncrementalHoareTripleChecker+Valid, 13419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2024-12-01 23:18:13,042 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13024 Valid, 16412 Invalid, 13636 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [217 Valid, 13419 Invalid, 0 Unknown, 0 Unchecked, 8.5s Time] [2024-12-01 23:18:13,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1982018 states. [2024-12-01 23:18:26,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1982018 to 582795. [2024-12-01 23:18:26,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 582795 states, 582794 states have (on average 1.312528955342711) internal successors, (764934), 582794 states have internal predecessors, (764934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:18:27,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582795 states to 582795 states and 764934 transitions. [2024-12-01 23:18:27,317 INFO L78 Accepts]: Start accepts. Automaton has 582795 states and 764934 transitions. Word has length 118 [2024-12-01 23:18:27,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:18:27,317 INFO L471 AbstractCegarLoop]: Abstraction has 582795 states and 764934 transitions. [2024-12-01 23:18:27,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 11.413793103448276) internal successors, (331), 29 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:18:27,317 INFO L276 IsEmpty]: Start isEmpty. Operand 582795 states and 764934 transitions. [2024-12-01 23:18:27,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-12-01 23:18:27,805 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:18:27,805 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:18:27,813 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e337800e-2ed8-4e71-83ba-7ab44ea9b8fe/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-01 23:18:28,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e337800e-2ed8-4e71-83ba-7ab44ea9b8fe/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 23:18:28,006 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:18:28,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:18:28,006 INFO L85 PathProgramCache]: Analyzing trace with hash 345302768, now seen corresponding path program 1 times [2024-12-01 23:18:28,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:18:28,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951587483] [2024-12-01 23:18:28,006 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:18:28,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:18:28,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:18:28,080 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 16 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:18:28,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:18:28,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951587483] [2024-12-01 23:18:28,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951587483] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 23:18:28,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [660421912] [2024-12-01 23:18:28,080 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:18:28,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 23:18:28,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e337800e-2ed8-4e71-83ba-7ab44ea9b8fe/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 23:18:28,082 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e337800e-2ed8-4e71-83ba-7ab44ea9b8fe/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 23:18:28,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e337800e-2ed8-4e71-83ba-7ab44ea9b8fe/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-01 23:18:28,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:18:28,280 INFO L256 TraceCheckSpWp]: Trace formula consists of 582 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-01 23:18:28,283 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 23:18:28,558 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:18:28,558 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 23:18:28,687 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:18:28,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [660421912] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-01 23:18:28,687 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-01 23:18:28,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 14 [2024-12-01 23:18:28,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749527202] [2024-12-01 23:18:28,687 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-01 23:18:28,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-01 23:18:28,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:18:28,688 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-01 23:18:28,688 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-12-01 23:18:28,688 INFO L87 Difference]: Start difference. First operand 582795 states and 764934 transitions. Second operand has 14 states, 14 states have (on average 24.428571428571427) internal successors, (342), 14 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:18:31,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:18:31,443 INFO L93 Difference]: Finished difference Result 1173097 states and 1532833 transitions. [2024-12-01 23:18:31,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-01 23:18:31,443 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 24.428571428571427) internal successors, (342), 14 states have internal predecessors, (342), 0 states have call successors, (0), 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 130 [2024-12-01 23:18:31,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:18:32,409 INFO L225 Difference]: With dead ends: 1173097 [2024-12-01 23:18:32,409 INFO L226 Difference]: Without dead ends: 591660 [2024-12-01 23:18:32,557 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 252 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2024-12-01 23:18:32,558 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 1616 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1616 SdHoareTripleChecker+Valid, 731 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-01 23:18:32,558 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1616 Valid, 731 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-01 23:18:32,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591660 states. [2024-12-01 23:18:39,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591660 to 559472. [2024-12-01 23:18:39,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559472 states, 559471 states have (on average 1.292370828872274) internal successors, (723044), 559471 states have internal predecessors, (723044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:18:41,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559472 states to 559472 states and 723044 transitions. [2024-12-01 23:18:41,483 INFO L78 Accepts]: Start accepts. Automaton has 559472 states and 723044 transitions. Word has length 130 [2024-12-01 23:18:41,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:18:41,483 INFO L471 AbstractCegarLoop]: Abstraction has 559472 states and 723044 transitions. [2024-12-01 23:18:41,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 24.428571428571427) internal successors, (342), 14 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:18:41,483 INFO L276 IsEmpty]: Start isEmpty. Operand 559472 states and 723044 transitions. [2024-12-01 23:18:41,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-12-01 23:18:41,520 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:18:41,520 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:18:41,526 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e337800e-2ed8-4e71-83ba-7ab44ea9b8fe/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-01 23:18:41,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e337800e-2ed8-4e71-83ba-7ab44ea9b8fe/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-12-01 23:18:41,721 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:18:41,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:18:41,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1529391166, now seen corresponding path program 1 times [2024-12-01 23:18:41,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:18:41,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767814615] [2024-12-01 23:18:41,722 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:18:41,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:18:41,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:18:41,766 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-12-01 23:18:41,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:18:41,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767814615] [2024-12-01 23:18:41,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767814615] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:18:41,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:18:41,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 23:18:41,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858371231] [2024-12-01 23:18:41,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:18:41,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 23:18:41,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:18:41,767 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 23:18:41,767 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:18:41,768 INFO L87 Difference]: Start difference. First operand 559472 states and 723044 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:18:44,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:18:44,265 INFO L93 Difference]: Finished difference Result 1043780 states and 1347414 transitions. [2024-12-01 23:18:44,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 23:18:44,266 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 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 131 [2024-12-01 23:18:44,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:18:45,120 INFO L225 Difference]: With dead ends: 1043780 [2024-12-01 23:18:45,121 INFO L226 Difference]: Without dead ends: 782225 [2024-12-01 23:18:45,257 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:18:45,258 INFO L435 NwaCegarLoop]: 207 mSDtfsCounter, 124 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:18:45,258 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 335 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:18:45,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 782225 states. [2024-12-01 23:18:51,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 782225 to 529156. [2024-12-01 23:18:51,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529156 states, 529155 states have (on average 1.2879666638319585) internal successors, (681534), 529155 states have internal predecessors, (681534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:18:52,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529156 states to 529156 states and 681534 transitions. [2024-12-01 23:18:52,618 INFO L78 Accepts]: Start accepts. Automaton has 529156 states and 681534 transitions. Word has length 131 [2024-12-01 23:18:52,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:18:52,618 INFO L471 AbstractCegarLoop]: Abstraction has 529156 states and 681534 transitions. [2024-12-01 23:18:52,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:18:52,618 INFO L276 IsEmpty]: Start isEmpty. Operand 529156 states and 681534 transitions. [2024-12-01 23:18:52,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-12-01 23:18:52,644 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:18:52,644 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:18:52,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-12-01 23:18:52,644 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:18:52,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:18:52,645 INFO L85 PathProgramCache]: Analyzing trace with hash -2054570614, now seen corresponding path program 1 times [2024-12-01 23:18:52,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:18:52,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509516487] [2024-12-01 23:18:52,645 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:18:52,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:18:52,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:18:52,897 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:18:52,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:18:52,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509516487] [2024-12-01 23:18:52,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509516487] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 23:18:52,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2032439311] [2024-12-01 23:18:52,898 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:18:52,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 23:18:52,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e337800e-2ed8-4e71-83ba-7ab44ea9b8fe/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 23:18:52,899 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e337800e-2ed8-4e71-83ba-7ab44ea9b8fe/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 23:18:52,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e337800e-2ed8-4e71-83ba-7ab44ea9b8fe/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-01 23:18:53,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:18:53,075 INFO L256 TraceCheckSpWp]: Trace formula consists of 586 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-12-01 23:18:53,078 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 23:18:54,048 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:18:54,048 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 23:18:55,087 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:18:55,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2032439311] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-01 23:18:55,088 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-01 23:18:55,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 17, 14] total 37 [2024-12-01 23:18:55,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751455164] [2024-12-01 23:18:55,088 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-01 23:18:55,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-12-01 23:18:55,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:18:55,089 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-12-01 23:18:55,089 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=1209, Unknown=0, NotChecked=0, Total=1332 [2024-12-01 23:18:55,089 INFO L87 Difference]: Start difference. First operand 529156 states and 681534 transitions. Second operand has 37 states, 37 states have (on average 10.243243243243244) internal successors, (379), 37 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:19:28,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:19:28,840 INFO L93 Difference]: Finished difference Result 3745802 states and 4771618 transitions. [2024-12-01 23:19:28,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 402 states. [2024-12-01 23:19:28,840 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 10.243243243243244) internal successors, (379), 37 states have internal predecessors, (379), 0 states have call successors, (0), 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 132 [2024-12-01 23:19:28,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:19:33,367 INFO L225 Difference]: With dead ends: 3745802 [2024-12-01 23:19:33,367 INFO L226 Difference]: Without dead ends: 3314617 [2024-12-01 23:19:33,677 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 674 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 434 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83475 ImplicationChecksByTransitivity, 18.0s TimeCoverageRelationStatistics Valid=21597, Invalid=168063, Unknown=0, NotChecked=0, Total=189660 [2024-12-01 23:19:33,677 INFO L435 NwaCegarLoop]: 622 mSDtfsCounter, 12473 mSDsluCounter, 11053 mSDsCounter, 0 mSdLazyCounter, 13507 mSolverCounterSat, 315 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12473 SdHoareTripleChecker+Valid, 11675 SdHoareTripleChecker+Invalid, 13822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 315 IncrementalHoareTripleChecker+Valid, 13507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2024-12-01 23:19:33,678 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12473 Valid, 11675 Invalid, 13822 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [315 Valid, 13507 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2024-12-01 23:19:35,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3314617 states. [2024-12-01 23:19:53,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3314617 to 849359. [2024-12-01 23:19:54,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 849359 states, 849358 states have (on average 1.28803284363013) internal successors, (1094001), 849358 states have internal predecessors, (1094001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:19:56,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 849359 states to 849359 states and 1094001 transitions. [2024-12-01 23:19:56,584 INFO L78 Accepts]: Start accepts. Automaton has 849359 states and 1094001 transitions. Word has length 132 [2024-12-01 23:19:56,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:19:56,584 INFO L471 AbstractCegarLoop]: Abstraction has 849359 states and 1094001 transitions. [2024-12-01 23:19:56,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 10.243243243243244) internal successors, (379), 37 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:19:56,584 INFO L276 IsEmpty]: Start isEmpty. Operand 849359 states and 1094001 transitions. [2024-12-01 23:19:56,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-12-01 23:19:56,679 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:19:56,680 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:19:56,689 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e337800e-2ed8-4e71-83ba-7ab44ea9b8fe/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-01 23:19:56,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e337800e-2ed8-4e71-83ba-7ab44ea9b8fe/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 23:19:56,880 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:19:56,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:19:56,881 INFO L85 PathProgramCache]: Analyzing trace with hash 689913683, now seen corresponding path program 1 times [2024-12-01 23:19:56,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:19:56,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641875110] [2024-12-01 23:19:56,881 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:19:56,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:19:56,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:19:57,056 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-12-01 23:19:57,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:19:57,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641875110] [2024-12-01 23:19:57,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641875110] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:19:57,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:19:57,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-01 23:19:57,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734333244] [2024-12-01 23:19:57,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:19:57,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 23:19:57,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:19:57,058 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 23:19:57,058 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-01 23:19:57,058 INFO L87 Difference]: Start difference. First operand 849359 states and 1094001 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:20:02,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:20:02,161 INFO L93 Difference]: Finished difference Result 1916106 states and 2463917 transitions. [2024-12-01 23:20:02,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-01 23:20:02,162 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2024-12-01 23:20:02,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:20:03,618 INFO L225 Difference]: With dead ends: 1916106 [2024-12-01 23:20:03,618 INFO L226 Difference]: Without dead ends: 1067772 [2024-12-01 23:20:03,966 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-01 23:20:03,967 INFO L435 NwaCegarLoop]: 144 mSDtfsCounter, 535 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 535 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-01 23:20:03,967 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [535 Valid, 473 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-01 23:20:04,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1067772 states.