./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.8.1.ufo.BOUNDED-16.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2cbd194-fe6c-46ac-bcab-a108d280e6d1/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2cbd194-fe6c-46ac-bcab-a108d280e6d1/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2cbd194-fe6c-46ac-bcab-a108d280e6d1/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2cbd194-fe6c-46ac-bcab-a108d280e6d1/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.8.1.ufo.BOUNDED-16.pals.c.v+nlh-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2cbd194-fe6c-46ac-bcab-a108d280e6d1/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2cbd194-fe6c-46ac-bcab-a108d280e6d1/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2164ea7ff9e119435a975a3ff24098e6247a3cb559bae891b283444f40f36a64 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:41:59,164 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:41:59,262 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2cbd194-fe6c-46ac-bcab-a108d280e6d1/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 00:41:59,272 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:41:59,273 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:41:59,312 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:41:59,313 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:41:59,313 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:41:59,313 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:41:59,314 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:41:59,315 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:41:59,315 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:41:59,315 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:41:59,315 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:41:59,316 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:41:59,316 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:41:59,316 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:41:59,316 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:41:59,317 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:41:59,317 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:41:59,317 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:41:59,317 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:41:59,317 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:41:59,318 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:41:59,318 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:41:59,318 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:41:59,318 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:41:59,318 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:41:59,318 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:41:59,318 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:41:59,319 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:41:59,319 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:41:59,319 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:41:59,320 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:41:59,320 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:41:59,320 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:41:59,320 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:41:59,320 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:41:59,320 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:41:59,320 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:41:59,321 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:41:59,321 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:41:59,321 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:41:59,321 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:41:59,321 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:41:59,321 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:41:59,321 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:41:59,321 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:41:59,321 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_e2cbd194-fe6c-46ac-bcab-a108d280e6d1/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2164ea7ff9e119435a975a3ff24098e6247a3cb559bae891b283444f40f36a64 [2024-11-24 00:41:59,653 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:41:59,661 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:41:59,663 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:41:59,665 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:41:59,665 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:41:59,666 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2cbd194-fe6c-46ac-bcab-a108d280e6d1/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.8.1.ufo.BOUNDED-16.pals.c.v+nlh-reducer.c [2024-11-24 00:42:02,667 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2cbd194-fe6c-46ac-bcab-a108d280e6d1/bin/uautomizer-verify-LYvppIcaGC/data/7a4667e9d/c4849321e867426d888630f5a2ebcfbe/FLAG391124cd4 [2024-11-24 00:42:03,016 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:42:03,017 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2cbd194-fe6c-46ac-bcab-a108d280e6d1/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.8.1.ufo.BOUNDED-16.pals.c.v+nlh-reducer.c [2024-11-24 00:42:03,034 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2cbd194-fe6c-46ac-bcab-a108d280e6d1/bin/uautomizer-verify-LYvppIcaGC/data/7a4667e9d/c4849321e867426d888630f5a2ebcfbe/FLAG391124cd4 [2024-11-24 00:42:03,058 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2cbd194-fe6c-46ac-bcab-a108d280e6d1/bin/uautomizer-verify-LYvppIcaGC/data/7a4667e9d/c4849321e867426d888630f5a2ebcfbe [2024-11-24 00:42:03,061 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:42:03,063 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:42:03,064 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:42:03,065 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:42:03,070 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:42:03,071 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:42:03" (1/1) ... [2024-11-24 00:42:03,072 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c97d8c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:42:03, skipping insertion in model container [2024-11-24 00:42:03,072 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:42:03" (1/1) ... [2024-11-24 00:42:03,122 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:42:03,555 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_e2cbd194-fe6c-46ac-bcab-a108d280e6d1/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.8.1.ufo.BOUNDED-16.pals.c.v+nlh-reducer.c[11829,11842] [2024-11-24 00:42:03,669 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:42:03,699 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:42:03,775 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_e2cbd194-fe6c-46ac-bcab-a108d280e6d1/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.8.1.ufo.BOUNDED-16.pals.c.v+nlh-reducer.c[11829,11842] [2024-11-24 00:42:03,820 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:42:03,841 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:42:03,841 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:42:03 WrapperNode [2024-11-24 00:42:03,842 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:42:03,843 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:42:03,843 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:42:03,843 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:42:03,850 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:42:03" (1/1) ... [2024-11-24 00:42:03,862 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:42:03" (1/1) ... [2024-11-24 00:42:03,922 INFO L138 Inliner]: procedures = 27, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1048 [2024-11-24 00:42:03,923 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:42:03,923 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:42:03,923 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:42:03,923 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:42:03,936 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:42:03" (1/1) ... [2024-11-24 00:42:03,937 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:42:03" (1/1) ... [2024-11-24 00:42:03,945 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:42:03" (1/1) ... [2024-11-24 00:42:03,984 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-24 00:42:03,984 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:42:03" (1/1) ... [2024-11-24 00:42:03,985 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:42:03" (1/1) ... [2024-11-24 00:42:04,007 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:42:03" (1/1) ... [2024-11-24 00:42:04,009 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:42:03" (1/1) ... [2024-11-24 00:42:04,020 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:42:03" (1/1) ... [2024-11-24 00:42:04,023 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:42:03" (1/1) ... [2024-11-24 00:42:04,026 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:42:03" (1/1) ... [2024-11-24 00:42:04,032 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:42:04,033 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:42:04,033 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:42:04,033 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:42:04,034 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:42:03" (1/1) ... [2024-11-24 00:42:04,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:42:04,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2cbd194-fe6c-46ac-bcab-a108d280e6d1/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:42:04,093 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2cbd194-fe6c-46ac-bcab-a108d280e6d1/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:42:04,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2cbd194-fe6c-46ac-bcab-a108d280e6d1/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:42:04,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:42:04,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 00:42:04,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:42:04,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:42:04,332 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:42:04,334 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:42:05,593 INFO L? ?]: Removed 120 outVars from TransFormulas that were not future-live. [2024-11-24 00:42:05,593 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:42:05,622 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:42:05,622 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-24 00:42:05,623 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:42:05 BoogieIcfgContainer [2024-11-24 00:42:05,623 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:42:05,625 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:42:05,625 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:42:05,665 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:42:05,665 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:42:03" (1/3) ... [2024-11-24 00:42:05,666 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61399148 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:42:05, skipping insertion in model container [2024-11-24 00:42:05,667 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:42:03" (2/3) ... [2024-11-24 00:42:05,667 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61399148 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:42:05, skipping insertion in model container [2024-11-24 00:42:05,667 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:42:05" (3/3) ... [2024-11-24 00:42:05,668 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr.8.1.ufo.BOUNDED-16.pals.c.v+nlh-reducer.c [2024-11-24 00:42:05,687 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:42:05,691 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.8.1.ufo.BOUNDED-16.pals.c.v+nlh-reducer.c that has 1 procedures, 232 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-24 00:42:05,784 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:42:05,802 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;@7cc920fa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:42:05,802 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 00:42:05,809 INFO L276 IsEmpty]: Start isEmpty. Operand has 232 states, 230 states have (on average 1.7695652173913043) internal successors, (407), 231 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:05,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-24 00:42:05,822 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:42:05,824 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:42:05,824 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:42:05,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:05,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1788351764, now seen corresponding path program 1 times [2024-11-24 00:42:05,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:05,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102773929] [2024-11-24 00:42:05,841 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:05,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:06,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:07,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:42:07,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:07,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102773929] [2024-11-24 00:42:07,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102773929] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:07,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:07,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-24 00:42:07,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264537660] [2024-11-24 00:42:07,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:07,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 00:42:07,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:07,267 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 00:42:07,268 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:42:07,271 INFO L87 Difference]: Start difference. First operand has 232 states, 230 states have (on average 1.7695652173913043) internal successors, (407), 231 states have internal predecessors, (407), 0 states have call successors, (0), 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 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:08,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:42:08,698 INFO L93 Difference]: Finished difference Result 1848 states and 2971 transitions. [2024-11-24 00:42:08,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-24 00:42:08,701 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2024-11-24 00:42:08,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:42:08,732 INFO L225 Difference]: With dead ends: 1848 [2024-11-24 00:42:08,732 INFO L226 Difference]: Without dead ends: 1706 [2024-11-24 00:42:08,741 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2024-11-24 00:42:08,744 INFO L435 NwaCegarLoop]: 1004 mSDtfsCounter, 3832 mSDsluCounter, 7254 mSDsCounter, 0 mSdLazyCounter, 558 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3832 SdHoareTripleChecker+Valid, 8258 SdHoareTripleChecker+Invalid, 570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 00:42:08,747 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3832 Valid, 8258 Invalid, 570 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [12 Valid, 558 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 00:42:08,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1706 states. [2024-11-24 00:42:08,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1706 to 349. [2024-11-24 00:42:08,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 348 states have (on average 1.4396551724137931) internal successors, (501), 348 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:08,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 501 transitions. [2024-11-24 00:42:08,885 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 501 transitions. Word has length 125 [2024-11-24 00:42:08,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:42:08,886 INFO L471 AbstractCegarLoop]: Abstraction has 349 states and 501 transitions. [2024-11-24 00:42:08,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:08,890 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 501 transitions. [2024-11-24 00:42:08,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-24 00:42:08,896 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:42:08,896 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:42:08,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 00:42:08,897 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:42:08,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:08,899 INFO L85 PathProgramCache]: Analyzing trace with hash 649831019, now seen corresponding path program 1 times [2024-11-24 00:42:08,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:08,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160592693] [2024-11-24 00:42:08,900 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:08,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:08,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:09,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:42:09,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:09,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160592693] [2024-11-24 00:42:09,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160592693] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:09,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:09,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-24 00:42:09,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846429504] [2024-11-24 00:42:09,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:09,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 00:42:09,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:09,613 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 00:42:09,614 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:42:09,614 INFO L87 Difference]: Start difference. First operand 349 states and 501 transitions. Second operand has 10 states, 10 states have (on average 12.7) internal successors, (127), 10 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:10,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:42:10,380 INFO L93 Difference]: Finished difference Result 1961 states and 3049 transitions. [2024-11-24 00:42:10,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 00:42:10,380 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.7) internal successors, (127), 10 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 127 [2024-11-24 00:42:10,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:42:10,393 INFO L225 Difference]: With dead ends: 1961 [2024-11-24 00:42:10,393 INFO L226 Difference]: Without dead ends: 1781 [2024-11-24 00:42:10,395 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-24 00:42:10,399 INFO L435 NwaCegarLoop]: 958 mSDtfsCounter, 2716 mSDsluCounter, 3533 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2716 SdHoareTripleChecker+Valid, 4491 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:42:10,399 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2716 Valid, 4491 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:42:10,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1781 states. [2024-11-24 00:42:10,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1781 to 553. [2024-11-24 00:42:10,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 552 states have (on average 1.4945652173913044) internal successors, (825), 552 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:10,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 825 transitions. [2024-11-24 00:42:10,464 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 825 transitions. Word has length 127 [2024-11-24 00:42:10,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:42:10,466 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 825 transitions. [2024-11-24 00:42:10,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.7) internal successors, (127), 10 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:10,466 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 825 transitions. [2024-11-24 00:42:10,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-24 00:42:10,471 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:42:10,472 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:42:10,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 00:42:10,472 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:42:10,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:10,475 INFO L85 PathProgramCache]: Analyzing trace with hash -660885545, now seen corresponding path program 1 times [2024-11-24 00:42:10,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:10,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203776983] [2024-11-24 00:42:10,475 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:10,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:10,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:11,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:42:11,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:11,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203776983] [2024-11-24 00:42:11,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203776983] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:11,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:11,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-24 00:42:11,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899385277] [2024-11-24 00:42:11,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:11,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 00:42:11,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:11,048 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 00:42:11,048 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:42:11,049 INFO L87 Difference]: Start difference. First operand 553 states and 825 transitions. Second operand has 10 states, 10 states have (on average 12.7) internal successors, (127), 10 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:11,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:42:11,677 INFO L93 Difference]: Finished difference Result 2165 states and 3373 transitions. [2024-11-24 00:42:11,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 00:42:11,678 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.7) internal successors, (127), 10 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 127 [2024-11-24 00:42:11,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:42:11,687 INFO L225 Difference]: With dead ends: 2165 [2024-11-24 00:42:11,688 INFO L226 Difference]: Without dead ends: 1985 [2024-11-24 00:42:11,689 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-24 00:42:11,692 INFO L435 NwaCegarLoop]: 826 mSDtfsCounter, 2884 mSDsluCounter, 2694 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2884 SdHoareTripleChecker+Valid, 3520 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:42:11,692 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2884 Valid, 3520 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:42:11,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1985 states. [2024-11-24 00:42:11,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1985 to 841. [2024-11-24 00:42:11,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 841 states, 840 states have (on average 1.526190476190476) internal successors, (1282), 840 states have internal predecessors, (1282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:11,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 841 states to 841 states and 1282 transitions. [2024-11-24 00:42:11,753 INFO L78 Accepts]: Start accepts. Automaton has 841 states and 1282 transitions. Word has length 127 [2024-11-24 00:42:11,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:42:11,754 INFO L471 AbstractCegarLoop]: Abstraction has 841 states and 1282 transitions. [2024-11-24 00:42:11,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.7) internal successors, (127), 10 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:11,755 INFO L276 IsEmpty]: Start isEmpty. Operand 841 states and 1282 transitions. [2024-11-24 00:42:11,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-24 00:42:11,762 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:42:11,762 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:42:11,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 00:42:11,763 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:42:11,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:11,763 INFO L85 PathProgramCache]: Analyzing trace with hash -356396037, now seen corresponding path program 1 times [2024-11-24 00:42:11,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:11,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046238245] [2024-11-24 00:42:11,764 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:11,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:11,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:12,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:42:12,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:12,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046238245] [2024-11-24 00:42:12,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046238245] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:12,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:12,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-24 00:42:12,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312140000] [2024-11-24 00:42:12,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:12,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 00:42:12,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:12,311 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 00:42:12,311 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:42:12,312 INFO L87 Difference]: Start difference. First operand 841 states and 1282 transitions. Second operand has 10 states, 10 states have (on average 12.7) internal successors, (127), 10 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:12,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:42:12,899 INFO L93 Difference]: Finished difference Result 2359 states and 3681 transitions. [2024-11-24 00:42:12,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 00:42:12,899 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.7) internal successors, (127), 10 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 127 [2024-11-24 00:42:12,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:42:12,908 INFO L225 Difference]: With dead ends: 2359 [2024-11-24 00:42:12,908 INFO L226 Difference]: Without dead ends: 2179 [2024-11-24 00:42:12,910 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-24 00:42:12,912 INFO L435 NwaCegarLoop]: 701 mSDtfsCounter, 3475 mSDsluCounter, 2600 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3475 SdHoareTripleChecker+Valid, 3301 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:42:12,913 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3475 Valid, 3301 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:42:12,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2179 states. [2024-11-24 00:42:12,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2179 to 1035. [2024-11-24 00:42:12,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1035 states, 1034 states have (on average 1.5377176015473888) internal successors, (1590), 1034 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:12,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1035 states to 1035 states and 1590 transitions. [2024-11-24 00:42:12,969 INFO L78 Accepts]: Start accepts. Automaton has 1035 states and 1590 transitions. Word has length 127 [2024-11-24 00:42:12,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:42:12,970 INFO L471 AbstractCegarLoop]: Abstraction has 1035 states and 1590 transitions. [2024-11-24 00:42:12,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.7) internal successors, (127), 10 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:12,970 INFO L276 IsEmpty]: Start isEmpty. Operand 1035 states and 1590 transitions. [2024-11-24 00:42:12,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-24 00:42:12,972 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:42:12,972 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:42:12,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 00:42:12,972 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:42:12,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:12,973 INFO L85 PathProgramCache]: Analyzing trace with hash 995442863, now seen corresponding path program 1 times [2024-11-24 00:42:12,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:12,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52124145] [2024-11-24 00:42:12,973 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:12,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:13,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:13,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:42:13,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:13,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52124145] [2024-11-24 00:42:13,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52124145] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:13,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:13,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-24 00:42:13,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383558360] [2024-11-24 00:42:13,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:13,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 00:42:13,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:13,427 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 00:42:13,427 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:42:13,428 INFO L87 Difference]: Start difference. First operand 1035 states and 1590 transitions. Second operand has 10 states, 10 states have (on average 12.7) internal successors, (127), 10 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:13,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:42:13,969 INFO L93 Difference]: Finished difference Result 2548 states and 3981 transitions. [2024-11-24 00:42:13,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 00:42:13,969 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.7) internal successors, (127), 10 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 127 [2024-11-24 00:42:13,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:42:13,978 INFO L225 Difference]: With dead ends: 2548 [2024-11-24 00:42:13,978 INFO L226 Difference]: Without dead ends: 2368 [2024-11-24 00:42:13,979 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-24 00:42:13,981 INFO L435 NwaCegarLoop]: 560 mSDtfsCounter, 3799 mSDsluCounter, 2730 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3799 SdHoareTripleChecker+Valid, 3290 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:42:13,982 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3799 Valid, 3290 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:42:13,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2368 states. [2024-11-24 00:42:14,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2368 to 1214. [2024-11-24 00:42:14,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1214 states, 1213 states have (on average 1.5449299258037923) internal successors, (1874), 1213 states have internal predecessors, (1874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:14,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1214 states to 1214 states and 1874 transitions. [2024-11-24 00:42:14,027 INFO L78 Accepts]: Start accepts. Automaton has 1214 states and 1874 transitions. Word has length 127 [2024-11-24 00:42:14,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:42:14,027 INFO L471 AbstractCegarLoop]: Abstraction has 1214 states and 1874 transitions. [2024-11-24 00:42:14,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.7) internal successors, (127), 10 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:14,028 INFO L276 IsEmpty]: Start isEmpty. Operand 1214 states and 1874 transitions. [2024-11-24 00:42:14,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-24 00:42:14,029 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:42:14,029 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:42:14,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 00:42:14,030 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:42:14,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:14,030 INFO L85 PathProgramCache]: Analyzing trace with hash -1485273227, now seen corresponding path program 1 times [2024-11-24 00:42:14,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:14,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682391871] [2024-11-24 00:42:14,031 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:14,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:14,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:14,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:42:14,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:14,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682391871] [2024-11-24 00:42:14,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682391871] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:14,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:14,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-24 00:42:14,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545359189] [2024-11-24 00:42:14,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:14,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 00:42:14,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:14,498 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 00:42:14,500 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:42:14,501 INFO L87 Difference]: Start difference. First operand 1214 states and 1874 transitions. Second operand has 10 states, 10 states have (on average 12.7) internal successors, (127), 10 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:15,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:42:15,058 INFO L93 Difference]: Finished difference Result 2726 states and 4264 transitions. [2024-11-24 00:42:15,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 00:42:15,059 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.7) internal successors, (127), 10 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 127 [2024-11-24 00:42:15,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:42:15,070 INFO L225 Difference]: With dead ends: 2726 [2024-11-24 00:42:15,071 INFO L226 Difference]: Without dead ends: 2546 [2024-11-24 00:42:15,075 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-24 00:42:15,078 INFO L435 NwaCegarLoop]: 442 mSDtfsCounter, 3938 mSDsluCounter, 2711 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3938 SdHoareTripleChecker+Valid, 3153 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:42:15,078 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3938 Valid, 3153 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:42:15,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2546 states. [2024-11-24 00:42:15,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2546 to 1392. [2024-11-24 00:42:15,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1392 states, 1391 states have (on average 1.5506829618979152) internal successors, (2157), 1391 states have internal predecessors, (2157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:15,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 2157 transitions. [2024-11-24 00:42:15,134 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 2157 transitions. Word has length 127 [2024-11-24 00:42:15,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:42:15,135 INFO L471 AbstractCegarLoop]: Abstraction has 1392 states and 2157 transitions. [2024-11-24 00:42:15,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.7) internal successors, (127), 10 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:15,135 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 2157 transitions. [2024-11-24 00:42:15,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-24 00:42:15,137 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:42:15,137 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:42:15,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 00:42:15,138 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:42:15,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:15,139 INFO L85 PathProgramCache]: Analyzing trace with hash 808098494, now seen corresponding path program 1 times [2024-11-24 00:42:15,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:15,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583645156] [2024-11-24 00:42:15,139 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:15,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:15,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:15,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:42:15,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:15,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583645156] [2024-11-24 00:42:15,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583645156] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:15,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:15,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-24 00:42:15,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083691549] [2024-11-24 00:42:15,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:15,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 00:42:15,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:15,971 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 00:42:15,971 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:42:15,971 INFO L87 Difference]: Start difference. First operand 1392 states and 2157 transitions. Second operand has 10 states, 10 states have (on average 12.7) internal successors, (127), 10 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:16,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:42:16,786 INFO L93 Difference]: Finished difference Result 2553 states and 3999 transitions. [2024-11-24 00:42:16,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 00:42:16,787 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.7) internal successors, (127), 10 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 127 [2024-11-24 00:42:16,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:42:16,793 INFO L225 Difference]: With dead ends: 2553 [2024-11-24 00:42:16,793 INFO L226 Difference]: Without dead ends: 1394 [2024-11-24 00:42:16,796 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2024-11-24 00:42:16,800 INFO L435 NwaCegarLoop]: 299 mSDtfsCounter, 1274 mSDsluCounter, 1294 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1274 SdHoareTripleChecker+Valid, 1593 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:42:16,801 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1274 Valid, 1593 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:42:16,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2024-11-24 00:42:16,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1392. [2024-11-24 00:42:16,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1392 states, 1391 states have (on average 1.5456506110711719) internal successors, (2150), 1391 states have internal predecessors, (2150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:16,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 2150 transitions. [2024-11-24 00:42:16,846 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 2150 transitions. Word has length 127 [2024-11-24 00:42:16,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:42:16,847 INFO L471 AbstractCegarLoop]: Abstraction has 1392 states and 2150 transitions. [2024-11-24 00:42:16,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.7) internal successors, (127), 10 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:16,847 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 2150 transitions. [2024-11-24 00:42:16,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-24 00:42:16,849 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:42:16,849 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:42:16,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 00:42:16,849 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:42:16,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:16,854 INFO L85 PathProgramCache]: Analyzing trace with hash 528748287, now seen corresponding path program 1 times [2024-11-24 00:42:16,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:16,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948764316] [2024-11-24 00:42:16,854 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:16,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:16,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:16,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:42:16,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:16,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948764316] [2024-11-24 00:42:16,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948764316] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:16,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:16,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:42:16,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798437759] [2024-11-24 00:42:16,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:16,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:42:16,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:17,000 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:42:17,000 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:42:17,001 INFO L87 Difference]: Start difference. First operand 1392 states and 2150 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:17,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:42:17,070 INFO L93 Difference]: Finished difference Result 3626 states and 5677 transitions. [2024-11-24 00:42:17,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:42:17,071 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 127 [2024-11-24 00:42:17,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:42:17,080 INFO L225 Difference]: With dead ends: 3626 [2024-11-24 00:42:17,081 INFO L226 Difference]: Without dead ends: 2467 [2024-11-24 00:42:17,083 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:42:17,084 INFO L435 NwaCegarLoop]: 438 mSDtfsCounter, 131 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 736 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:42:17,085 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 736 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:42:17,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2467 states. [2024-11-24 00:42:17,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2467 to 2465. [2024-11-24 00:42:17,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2465 states, 2464 states have (on average 1.5487012987012987) internal successors, (3816), 2464 states have internal predecessors, (3816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:17,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2465 states to 2465 states and 3816 transitions. [2024-11-24 00:42:17,153 INFO L78 Accepts]: Start accepts. Automaton has 2465 states and 3816 transitions. Word has length 127 [2024-11-24 00:42:17,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:42:17,154 INFO L471 AbstractCegarLoop]: Abstraction has 2465 states and 3816 transitions. [2024-11-24 00:42:17,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:17,154 INFO L276 IsEmpty]: Start isEmpty. Operand 2465 states and 3816 transitions. [2024-11-24 00:42:17,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-24 00:42:17,156 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:42:17,157 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:42:17,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 00:42:17,157 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:42:17,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:17,158 INFO L85 PathProgramCache]: Analyzing trace with hash -19934321, now seen corresponding path program 1 times [2024-11-24 00:42:17,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:17,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124325517] [2024-11-24 00:42:17,158 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:17,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:17,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:17,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:42:17,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:17,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124325517] [2024-11-24 00:42:17,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124325517] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:17,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:17,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-24 00:42:17,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516729728] [2024-11-24 00:42:17,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:17,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 00:42:17,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:17,663 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 00:42:17,663 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:42:17,664 INFO L87 Difference]: Start difference. First operand 2465 states and 3816 transitions. Second operand has 10 states, 10 states have (on average 12.7) internal successors, (127), 10 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:18,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:42:18,319 INFO L93 Difference]: Finished difference Result 5298 states and 8255 transitions. [2024-11-24 00:42:18,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 00:42:18,320 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.7) internal successors, (127), 10 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 127 [2024-11-24 00:42:18,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:42:18,340 INFO L225 Difference]: With dead ends: 5298 [2024-11-24 00:42:18,340 INFO L226 Difference]: Without dead ends: 4953 [2024-11-24 00:42:18,343 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-24 00:42:18,346 INFO L435 NwaCegarLoop]: 569 mSDtfsCounter, 2943 mSDsluCounter, 2940 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2943 SdHoareTripleChecker+Valid, 3509 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:42:18,346 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2943 Valid, 3509 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:42:18,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4953 states. [2024-11-24 00:42:18,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4953 to 2814. [2024-11-24 00:42:18,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2814 states, 2813 states have (on average 1.5510131532172058) internal successors, (4363), 2813 states have internal predecessors, (4363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:18,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2814 states to 2814 states and 4363 transitions. [2024-11-24 00:42:18,483 INFO L78 Accepts]: Start accepts. Automaton has 2814 states and 4363 transitions. Word has length 127 [2024-11-24 00:42:18,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:42:18,485 INFO L471 AbstractCegarLoop]: Abstraction has 2814 states and 4363 transitions. [2024-11-24 00:42:18,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.7) internal successors, (127), 10 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:18,486 INFO L276 IsEmpty]: Start isEmpty. Operand 2814 states and 4363 transitions. [2024-11-24 00:42:18,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-24 00:42:18,488 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:42:18,488 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:42:18,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 00:42:18,489 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:42:18,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:18,491 INFO L85 PathProgramCache]: Analyzing trace with hash -2122526909, now seen corresponding path program 1 times [2024-11-24 00:42:18,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:18,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231781738] [2024-11-24 00:42:18,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:18,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:18,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:18,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:42:18,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:18,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231781738] [2024-11-24 00:42:18,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231781738] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:18,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:18,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-24 00:42:18,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977018599] [2024-11-24 00:42:18,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:18,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 00:42:18,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:18,971 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 00:42:18,972 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:42:18,972 INFO L87 Difference]: Start difference. First operand 2814 states and 4363 transitions. Second operand has 10 states, 10 states have (on average 12.7) internal successors, (127), 10 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:19,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:42:19,534 INFO L93 Difference]: Finished difference Result 5647 states and 8802 transitions. [2024-11-24 00:42:19,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 00:42:19,535 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.7) internal successors, (127), 10 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 127 [2024-11-24 00:42:19,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:42:19,569 INFO L225 Difference]: With dead ends: 5647 [2024-11-24 00:42:19,569 INFO L226 Difference]: Without dead ends: 5302 [2024-11-24 00:42:19,575 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-24 00:42:19,576 INFO L435 NwaCegarLoop]: 577 mSDtfsCounter, 3046 mSDsluCounter, 3700 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3046 SdHoareTripleChecker+Valid, 4277 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:42:19,576 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3046 Valid, 4277 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:42:19,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5302 states. [2024-11-24 00:42:19,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5302 to 3168. [2024-11-24 00:42:19,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3168 states, 3167 states have (on average 1.552889169561099) internal successors, (4918), 3167 states have internal predecessors, (4918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:19,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3168 states to 3168 states and 4918 transitions. [2024-11-24 00:42:19,678 INFO L78 Accepts]: Start accepts. Automaton has 3168 states and 4918 transitions. Word has length 127 [2024-11-24 00:42:19,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:42:19,678 INFO L471 AbstractCegarLoop]: Abstraction has 3168 states and 4918 transitions. [2024-11-24 00:42:19,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.7) internal successors, (127), 10 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:19,679 INFO L276 IsEmpty]: Start isEmpty. Operand 3168 states and 4918 transitions. [2024-11-24 00:42:19,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-24 00:42:19,681 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:42:19,681 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:42:19,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 00:42:19,681 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:42:19,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:19,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1885363609, now seen corresponding path program 1 times [2024-11-24 00:42:19,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:19,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127701705] [2024-11-24 00:42:19,682 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:19,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:19,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:20,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:42:20,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:20,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127701705] [2024-11-24 00:42:20,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127701705] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:20,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:20,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-24 00:42:20,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611023538] [2024-11-24 00:42:20,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:20,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 00:42:20,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:20,102 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 00:42:20,102 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:42:20,102 INFO L87 Difference]: Start difference. First operand 3168 states and 4918 transitions. Second operand has 10 states, 10 states have (on average 12.7) internal successors, (127), 10 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:20,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:42:20,663 INFO L93 Difference]: Finished difference Result 6011 states and 9373 transitions. [2024-11-24 00:42:20,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 00:42:20,663 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.7) internal successors, (127), 10 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 127 [2024-11-24 00:42:20,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:42:20,677 INFO L225 Difference]: With dead ends: 6011 [2024-11-24 00:42:20,678 INFO L226 Difference]: Without dead ends: 5666 [2024-11-24 00:42:20,680 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-24 00:42:20,681 INFO L435 NwaCegarLoop]: 485 mSDtfsCounter, 3377 mSDsluCounter, 4130 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3377 SdHoareTripleChecker+Valid, 4615 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:42:20,682 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3377 Valid, 4615 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:42:20,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5666 states. [2024-11-24 00:42:20,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5666 to 3537. [2024-11-24 00:42:20,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3537 states, 3536 states have (on average 1.554581447963801) internal successors, (5497), 3536 states have internal predecessors, (5497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:20,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3537 states to 3537 states and 5497 transitions. [2024-11-24 00:42:20,810 INFO L78 Accepts]: Start accepts. Automaton has 3537 states and 5497 transitions. Word has length 127 [2024-11-24 00:42:20,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:42:20,810 INFO L471 AbstractCegarLoop]: Abstraction has 3537 states and 5497 transitions. [2024-11-24 00:42:20,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.7) internal successors, (127), 10 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:20,810 INFO L276 IsEmpty]: Start isEmpty. Operand 3537 states and 5497 transitions. [2024-11-24 00:42:20,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-24 00:42:20,812 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:42:20,812 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:42:20,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 00:42:20,813 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:42:20,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:20,813 INFO L85 PathProgramCache]: Analyzing trace with hash -720659575, now seen corresponding path program 1 times [2024-11-24 00:42:20,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:20,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067996456] [2024-11-24 00:42:20,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:20,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:20,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:21,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:42:21,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:21,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067996456] [2024-11-24 00:42:21,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067996456] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:21,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:21,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:42:21,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027098874] [2024-11-24 00:42:21,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:21,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:42:21,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:21,020 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:42:21,020 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:42:21,020 INFO L87 Difference]: Start difference. First operand 3537 states and 5497 transitions. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:21,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:42:21,433 INFO L93 Difference]: Finished difference Result 10400 states and 16247 transitions. [2024-11-24 00:42:21,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:42:21,434 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 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 128 [2024-11-24 00:42:21,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:42:21,447 INFO L225 Difference]: With dead ends: 10400 [2024-11-24 00:42:21,447 INFO L226 Difference]: Without dead ends: 6931 [2024-11-24 00:42:21,451 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 [2024-11-24 00:42:21,452 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 1235 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1235 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:42:21,452 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1235 Valid, 272 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:42:21,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6931 states. [2024-11-24 00:42:21,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6931 to 6929. [2024-11-24 00:42:21,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6929 states, 6928 states have (on average 1.5558602771362586) internal successors, (10779), 6928 states have internal predecessors, (10779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:21,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6929 states to 6929 states and 10779 transitions. [2024-11-24 00:42:21,626 INFO L78 Accepts]: Start accepts. Automaton has 6929 states and 10779 transitions. Word has length 128 [2024-11-24 00:42:21,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:42:21,626 INFO L471 AbstractCegarLoop]: Abstraction has 6929 states and 10779 transitions. [2024-11-24 00:42:21,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:21,627 INFO L276 IsEmpty]: Start isEmpty. Operand 6929 states and 10779 transitions. [2024-11-24 00:42:21,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-24 00:42:21,630 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:42:21,630 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:42:21,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-24 00:42:21,630 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:42:21,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:21,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1179042837, now seen corresponding path program 1 times [2024-11-24 00:42:21,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:21,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265916786] [2024-11-24 00:42:21,631 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:21,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:21,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:21,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:42:21,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:21,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265916786] [2024-11-24 00:42:21,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265916786] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:21,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:21,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:42:21,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720918445] [2024-11-24 00:42:21,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:21,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:42:21,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:21,885 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:42:21,885 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:42:21,885 INFO L87 Difference]: Start difference. First operand 6929 states and 10779 transitions. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:22,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:42:22,179 INFO L93 Difference]: Finished difference Result 13774 states and 21470 transitions. [2024-11-24 00:42:22,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:42:22,180 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 0 states have call successors, (0), 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 129 [2024-11-24 00:42:22,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:42:22,194 INFO L225 Difference]: With dead ends: 13774 [2024-11-24 00:42:22,194 INFO L226 Difference]: Without dead ends: 6929 [2024-11-24 00:42:22,201 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 [2024-11-24 00:42:22,202 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 803 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 803 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:42:22,203 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [803 Valid, 204 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:42:22,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6929 states. [2024-11-24 00:42:22,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6929 to 6929. [2024-11-24 00:42:22,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6929 states, 6928 states have (on average 1.5447459584295613) internal successors, (10702), 6928 states have internal predecessors, (10702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:22,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6929 states to 6929 states and 10702 transitions. [2024-11-24 00:42:22,365 INFO L78 Accepts]: Start accepts. Automaton has 6929 states and 10702 transitions. Word has length 129 [2024-11-24 00:42:22,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:42:22,366 INFO L471 AbstractCegarLoop]: Abstraction has 6929 states and 10702 transitions. [2024-11-24 00:42:22,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:22,367 INFO L276 IsEmpty]: Start isEmpty. Operand 6929 states and 10702 transitions. [2024-11-24 00:42:22,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-24 00:42:22,369 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:42:22,370 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:42:22,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-24 00:42:22,370 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:42:22,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:22,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1042803447, now seen corresponding path program 1 times [2024-11-24 00:42:22,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:22,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241703978] [2024-11-24 00:42:22,371 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:22,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:22,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:22,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:42:22,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:22,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241703978] [2024-11-24 00:42:22,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241703978] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:22,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:22,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:42:22,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046006508] [2024-11-24 00:42:22,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:22,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:42:22,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:22,589 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:42:22,590 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:42:22,590 INFO L87 Difference]: Start difference. First operand 6929 states and 10702 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:22,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:42:22,862 INFO L93 Difference]: Finished difference Result 13762 states and 21302 transitions. [2024-11-24 00:42:22,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:42:22,863 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 0 states have call successors, (0), 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 [2024-11-24 00:42:22,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:42:22,878 INFO L225 Difference]: With dead ends: 13762 [2024-11-24 00:42:22,878 INFO L226 Difference]: Without dead ends: 6929 [2024-11-24 00:42:22,885 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 [2024-11-24 00:42:22,886 INFO L435 NwaCegarLoop]: 172 mSDtfsCounter, 764 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 764 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:42:22,886 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [764 Valid, 232 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:42:22,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6929 states. [2024-11-24 00:42:22,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6929 to 6929. [2024-11-24 00:42:23,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6929 states, 6928 states have (on average 1.5336316397228638) internal successors, (10625), 6928 states have internal predecessors, (10625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:23,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6929 states to 6929 states and 10625 transitions. [2024-11-24 00:42:23,027 INFO L78 Accepts]: Start accepts. Automaton has 6929 states and 10625 transitions. Word has length 130 [2024-11-24 00:42:23,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:42:23,028 INFO L471 AbstractCegarLoop]: Abstraction has 6929 states and 10625 transitions. [2024-11-24 00:42:23,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:23,028 INFO L276 IsEmpty]: Start isEmpty. Operand 6929 states and 10625 transitions. [2024-11-24 00:42:23,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-24 00:42:23,030 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:42:23,030 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:42:23,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-24 00:42:23,031 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:42:23,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:23,032 INFO L85 PathProgramCache]: Analyzing trace with hash 2141096073, now seen corresponding path program 1 times [2024-11-24 00:42:23,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:23,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461910516] [2024-11-24 00:42:23,032 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:23,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:23,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:23,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:42:23,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:23,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461910516] [2024-11-24 00:42:23,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461910516] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:23,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:23,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:42:23,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450684740] [2024-11-24 00:42:23,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:23,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:42:23,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:23,254 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:42:23,254 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:42:23,254 INFO L87 Difference]: Start difference. First operand 6929 states and 10625 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:23,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:42:23,569 INFO L93 Difference]: Finished difference Result 13766 states and 21153 transitions. [2024-11-24 00:42:23,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:42:23,570 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 0 states have call successors, (0), 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 [2024-11-24 00:42:23,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:42:23,587 INFO L225 Difference]: With dead ends: 13766 [2024-11-24 00:42:23,587 INFO L226 Difference]: Without dead ends: 6929 [2024-11-24 00:42:23,597 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 [2024-11-24 00:42:23,598 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 768 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 768 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:42:23,598 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [768 Valid, 220 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:42:23,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6929 states. [2024-11-24 00:42:23,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6929 to 6929. [2024-11-24 00:42:23,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6929 states, 6928 states have (on average 1.5225173210161662) internal successors, (10548), 6928 states have internal predecessors, (10548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:23,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6929 states to 6929 states and 10548 transitions. [2024-11-24 00:42:23,751 INFO L78 Accepts]: Start accepts. Automaton has 6929 states and 10548 transitions. Word has length 131 [2024-11-24 00:42:23,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:42:23,751 INFO L471 AbstractCegarLoop]: Abstraction has 6929 states and 10548 transitions. [2024-11-24 00:42:23,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:23,752 INFO L276 IsEmpty]: Start isEmpty. Operand 6929 states and 10548 transitions. [2024-11-24 00:42:23,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-24 00:42:23,755 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:42:23,755 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:42:23,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-24 00:42:23,756 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:42:23,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:23,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1933723773, now seen corresponding path program 1 times [2024-11-24 00:42:23,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:23,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319953721] [2024-11-24 00:42:23,756 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:23,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:23,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:23,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:42:23,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:23,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319953721] [2024-11-24 00:42:23,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319953721] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:23,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:23,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:42:23,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611755636] [2024-11-24 00:42:23,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:23,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:42:23,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:23,965 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:42:23,966 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:42:23,966 INFO L87 Difference]: Start difference. First operand 6929 states and 10548 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:24,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:42:24,310 INFO L93 Difference]: Finished difference Result 13778 states and 21013 transitions. [2024-11-24 00:42:24,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:42:24,310 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 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 [2024-11-24 00:42:24,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:42:24,325 INFO L225 Difference]: With dead ends: 13778 [2024-11-24 00:42:24,325 INFO L226 Difference]: Without dead ends: 6929 [2024-11-24 00:42:24,332 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 [2024-11-24 00:42:24,333 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 796 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 796 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:42:24,333 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [796 Valid, 196 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:42:24,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6929 states. [2024-11-24 00:42:24,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6929 to 6929. [2024-11-24 00:42:24,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6929 states, 6928 states have (on average 1.511403002309469) internal successors, (10471), 6928 states have internal predecessors, (10471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:24,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6929 states to 6929 states and 10471 transitions. [2024-11-24 00:42:24,460 INFO L78 Accepts]: Start accepts. Automaton has 6929 states and 10471 transitions. Word has length 132 [2024-11-24 00:42:24,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:42:24,460 INFO L471 AbstractCegarLoop]: Abstraction has 6929 states and 10471 transitions. [2024-11-24 00:42:24,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:24,461 INFO L276 IsEmpty]: Start isEmpty. Operand 6929 states and 10471 transitions. [2024-11-24 00:42:24,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-24 00:42:24,464 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:42:24,464 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:42:24,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-24 00:42:24,465 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:42:24,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:24,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1022574443, now seen corresponding path program 1 times [2024-11-24 00:42:24,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:24,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164752680] [2024-11-24 00:42:24,467 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:24,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:24,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:24,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:42:24,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:24,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164752680] [2024-11-24 00:42:24,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164752680] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:24,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:24,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:42:24,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797826881] [2024-11-24 00:42:24,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:24,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:42:24,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:24,678 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:42:24,678 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:42:24,678 INFO L87 Difference]: Start difference. First operand 6929 states and 10471 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:24,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:42:24,991 INFO L93 Difference]: Finished difference Result 13786 states and 20869 transitions. [2024-11-24 00:42:24,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:42:24,992 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 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 [2024-11-24 00:42:24,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:42:25,009 INFO L225 Difference]: With dead ends: 13786 [2024-11-24 00:42:25,009 INFO L226 Difference]: Without dead ends: 6929 [2024-11-24 00:42:25,017 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 [2024-11-24 00:42:25,018 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 812 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 812 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:42:25,018 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [812 Valid, 180 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:42:25,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6929 states. [2024-11-24 00:42:25,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6929 to 6929. [2024-11-24 00:42:25,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6929 states, 6928 states have (on average 1.5002886836027713) internal successors, (10394), 6928 states have internal predecessors, (10394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:25,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6929 states to 6929 states and 10394 transitions. [2024-11-24 00:42:25,190 INFO L78 Accepts]: Start accepts. Automaton has 6929 states and 10394 transitions. Word has length 133 [2024-11-24 00:42:25,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:42:25,190 INFO L471 AbstractCegarLoop]: Abstraction has 6929 states and 10394 transitions. [2024-11-24 00:42:25,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:25,191 INFO L276 IsEmpty]: Start isEmpty. Operand 6929 states and 10394 transitions. [2024-11-24 00:42:25,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-24 00:42:25,194 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:42:25,195 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:42:25,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-24 00:42:25,195 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:42:25,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:25,196 INFO L85 PathProgramCache]: Analyzing trace with hash -1152057475, now seen corresponding path program 1 times [2024-11-24 00:42:25,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:25,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620279326] [2024-11-24 00:42:25,196 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:25,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:25,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:25,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:42:25,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:25,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620279326] [2024-11-24 00:42:25,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620279326] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:25,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:25,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:42:25,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826458018] [2024-11-24 00:42:25,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:25,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:42:25,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:25,470 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:42:25,470 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:42:25,470 INFO L87 Difference]: Start difference. First operand 6929 states and 10394 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:25,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:42:25,812 INFO L93 Difference]: Finished difference Result 13782 states and 20711 transitions. [2024-11-24 00:42:25,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:42:25,813 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2024-11-24 00:42:25,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:42:25,831 INFO L225 Difference]: With dead ends: 13782 [2024-11-24 00:42:25,831 INFO L226 Difference]: Without dead ends: 6929 [2024-11-24 00:42:25,841 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 [2024-11-24 00:42:25,842 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 794 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 794 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:42:25,842 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [794 Valid, 188 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:42:25,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6929 states. [2024-11-24 00:42:25,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6929 to 6929. [2024-11-24 00:42:25,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6929 states, 6928 states have (on average 1.4891743648960738) internal successors, (10317), 6928 states have internal predecessors, (10317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:25,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6929 states to 6929 states and 10317 transitions. [2024-11-24 00:42:25,982 INFO L78 Accepts]: Start accepts. Automaton has 6929 states and 10317 transitions. Word has length 134 [2024-11-24 00:42:25,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:42:25,983 INFO L471 AbstractCegarLoop]: Abstraction has 6929 states and 10317 transitions. [2024-11-24 00:42:25,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:25,983 INFO L276 IsEmpty]: Start isEmpty. Operand 6929 states and 10317 transitions. [2024-11-24 00:42:25,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-24 00:42:25,986 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:42:25,986 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:42:25,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-24 00:42:25,987 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:42:25,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:25,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1585245791, now seen corresponding path program 1 times [2024-11-24 00:42:25,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:25,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498502720] [2024-11-24 00:42:25,989 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:25,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:26,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:26,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:42:26,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:26,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498502720] [2024-11-24 00:42:26,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498502720] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:26,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:26,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:42:26,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789378288] [2024-11-24 00:42:26,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:26,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:42:26,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:26,196 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:42:26,196 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:42:26,196 INFO L87 Difference]: Start difference. First operand 6929 states and 10317 transitions. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:26,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:42:26,523 INFO L93 Difference]: Finished difference Result 13770 states and 20545 transitions. [2024-11-24 00:42:26,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:42:26,524 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 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 135 [2024-11-24 00:42:26,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:42:26,541 INFO L225 Difference]: With dead ends: 13770 [2024-11-24 00:42:26,541 INFO L226 Difference]: Without dead ends: 6929 [2024-11-24 00:42:26,549 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:42:26,549 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 752 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 752 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:42:26,550 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [752 Valid, 212 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:42:26,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6929 states. [2024-11-24 00:42:26,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6929 to 6929. [2024-11-24 00:42:26,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6929 states, 6928 states have (on average 1.4780600461893765) internal successors, (10240), 6928 states have internal predecessors, (10240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:26,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6929 states to 6929 states and 10240 transitions. [2024-11-24 00:42:26,659 INFO L78 Accepts]: Start accepts. Automaton has 6929 states and 10240 transitions. Word has length 135 [2024-11-24 00:42:26,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:42:26,659 INFO L471 AbstractCegarLoop]: Abstraction has 6929 states and 10240 transitions. [2024-11-24 00:42:26,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:26,660 INFO L276 IsEmpty]: Start isEmpty. Operand 6929 states and 10240 transitions. [2024-11-24 00:42:26,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-24 00:42:26,662 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:42:26,663 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:42:26,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-24 00:42:26,663 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:42:26,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:26,664 INFO L85 PathProgramCache]: Analyzing trace with hash -939512999, now seen corresponding path program 1 times [2024-11-24 00:42:26,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:26,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497407400] [2024-11-24 00:42:26,664 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:26,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:26,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:27,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:42:27,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:27,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497407400] [2024-11-24 00:42:27,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497407400] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:27,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:27,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:42:27,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440127417] [2024-11-24 00:42:27,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:27,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:42:27,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:27,219 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:42:27,219 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:42:27,219 INFO L87 Difference]: Start difference. First operand 6929 states and 10240 transitions. Second operand has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:27,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:42:27,283 INFO L93 Difference]: Finished difference Result 6967 states and 10295 transitions. [2024-11-24 00:42:27,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:42:27,284 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 0 states have call successors, (0), 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 136 [2024-11-24 00:42:27,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:42:27,302 INFO L225 Difference]: With dead ends: 6967 [2024-11-24 00:42:27,302 INFO L226 Difference]: Without dead ends: 6965 [2024-11-24 00:42:27,305 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:42:27,307 INFO L435 NwaCegarLoop]: 293 mSDtfsCounter, 0 mSDsluCounter, 864 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1157 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:42:27,310 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1157 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:42:27,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6965 states. [2024-11-24 00:42:27,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6965 to 6965. [2024-11-24 00:42:27,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6965 states, 6964 states have (on average 1.4727168294083859) internal successors, (10256), 6964 states have internal predecessors, (10256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:27,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6965 states to 6965 states and 10256 transitions. [2024-11-24 00:42:27,422 INFO L78 Accepts]: Start accepts. Automaton has 6965 states and 10256 transitions. Word has length 136 [2024-11-24 00:42:27,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:42:27,422 INFO L471 AbstractCegarLoop]: Abstraction has 6965 states and 10256 transitions. [2024-11-24 00:42:27,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:27,423 INFO L276 IsEmpty]: Start isEmpty. Operand 6965 states and 10256 transitions. [2024-11-24 00:42:27,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-24 00:42:27,427 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:42:27,427 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:42:27,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-24 00:42:27,427 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:42:27,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:27,428 INFO L85 PathProgramCache]: Analyzing trace with hash -738604843, now seen corresponding path program 1 times [2024-11-24 00:42:27,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:27,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661458860] [2024-11-24 00:42:27,429 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:27,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:27,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:28,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:42:28,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:28,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661458860] [2024-11-24 00:42:28,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661458860] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:28,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:28,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-24 00:42:28,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511159105] [2024-11-24 00:42:28,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:28,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 00:42:28,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:28,307 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 00:42:28,307 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-24 00:42:28,307 INFO L87 Difference]: Start difference. First operand 6965 states and 10256 transitions. Second operand has 13 states, 13 states have (on average 10.461538461538462) internal successors, (136), 12 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:29,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:42:29,648 INFO L93 Difference]: Finished difference Result 20324 states and 29888 transitions. [2024-11-24 00:42:29,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-24 00:42:29,649 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.461538461538462) internal successors, (136), 12 states have internal predecessors, (136), 0 states have call successors, (0), 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 136 [2024-11-24 00:42:29,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:42:29,684 INFO L225 Difference]: With dead ends: 20324 [2024-11-24 00:42:29,685 INFO L226 Difference]: Without dead ends: 13753 [2024-11-24 00:42:29,693 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=146, Invalid=454, Unknown=0, NotChecked=0, Total=600 [2024-11-24 00:42:29,694 INFO L435 NwaCegarLoop]: 163 mSDtfsCounter, 1714 mSDsluCounter, 713 mSDsCounter, 0 mSdLazyCounter, 782 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1714 SdHoareTripleChecker+Valid, 876 SdHoareTripleChecker+Invalid, 795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-24 00:42:29,694 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1714 Valid, 876 Invalid, 795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 782 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-24 00:42:29,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13753 states. [2024-11-24 00:42:29,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13753 to 6965. [2024-11-24 00:42:29,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6965 states, 6964 states have (on average 1.4705628948879954) internal successors, (10241), 6964 states have internal predecessors, (10241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:29,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6965 states to 6965 states and 10241 transitions. [2024-11-24 00:42:29,846 INFO L78 Accepts]: Start accepts. Automaton has 6965 states and 10241 transitions. Word has length 136 [2024-11-24 00:42:29,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:42:29,846 INFO L471 AbstractCegarLoop]: Abstraction has 6965 states and 10241 transitions. [2024-11-24 00:42:29,846 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.461538461538462) internal successors, (136), 12 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:29,847 INFO L276 IsEmpty]: Start isEmpty. Operand 6965 states and 10241 transitions. [2024-11-24 00:42:29,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-24 00:42:29,849 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:42:29,850 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:42:29,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-24 00:42:29,850 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:42:29,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:29,851 INFO L85 PathProgramCache]: Analyzing trace with hash -395821450, now seen corresponding path program 1 times [2024-11-24 00:42:29,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:29,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576423526] [2024-11-24 00:42:29,851 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:29,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:29,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:30,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:42:30,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:30,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576423526] [2024-11-24 00:42:30,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576423526] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:30,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:30,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 00:42:30,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643788962] [2024-11-24 00:42:30,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:30,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 00:42:30,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:30,536 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 00:42:30,536 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:42:30,537 INFO L87 Difference]: Start difference. First operand 6965 states and 10241 transitions. Second operand has 10 states, 10 states have (on average 13.7) internal successors, (137), 9 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:31,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:42:31,574 INFO L93 Difference]: Finished difference Result 17310 states and 25423 transitions. [2024-11-24 00:42:31,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 00:42:31,574 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.7) internal successors, (137), 9 states have internal predecessors, (137), 0 states have call successors, (0), 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 137 [2024-11-24 00:42:31,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:42:31,606 INFO L225 Difference]: With dead ends: 17310 [2024-11-24 00:42:31,606 INFO L226 Difference]: Without dead ends: 10529 [2024-11-24 00:42:31,613 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-24 00:42:31,616 INFO L435 NwaCegarLoop]: 163 mSDtfsCounter, 1301 mSDsluCounter, 624 mSDsCounter, 0 mSdLazyCounter, 707 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1301 SdHoareTripleChecker+Valid, 787 SdHoareTripleChecker+Invalid, 714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 00:42:31,616 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1301 Valid, 787 Invalid, 714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 707 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 00:42:31,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10529 states. [2024-11-24 00:42:31,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10529 to 6965. [2024-11-24 00:42:31,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6965 states, 6964 states have (on average 1.4701321079839174) internal successors, (10238), 6964 states have internal predecessors, (10238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:31,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6965 states to 6965 states and 10238 transitions. [2024-11-24 00:42:31,785 INFO L78 Accepts]: Start accepts. Automaton has 6965 states and 10238 transitions. Word has length 137 [2024-11-24 00:42:31,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:42:31,785 INFO L471 AbstractCegarLoop]: Abstraction has 6965 states and 10238 transitions. [2024-11-24 00:42:31,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.7) internal successors, (137), 9 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:31,786 INFO L276 IsEmpty]: Start isEmpty. Operand 6965 states and 10238 transitions. [2024-11-24 00:42:31,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-24 00:42:31,788 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:42:31,789 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:42:31,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-24 00:42:31,789 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:42:31,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:31,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1471402126, now seen corresponding path program 1 times [2024-11-24 00:42:31,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:31,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072097883] [2024-11-24 00:42:31,790 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:31,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:31,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:32,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:42:32,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:32,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072097883] [2024-11-24 00:42:32,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072097883] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:32,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:32,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-24 00:42:32,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243776052] [2024-11-24 00:42:32,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:32,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 00:42:32,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:32,555 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 00:42:32,555 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-24 00:42:32,555 INFO L87 Difference]: Start difference. First operand 6965 states and 10238 transitions. Second operand has 13 states, 13 states have (on average 10.538461538461538) internal successors, (137), 12 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:33,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:42:33,839 INFO L93 Difference]: Finished difference Result 20544 states and 30196 transitions. [2024-11-24 00:42:33,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-24 00:42:33,839 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.538461538461538) internal successors, (137), 12 states have internal predecessors, (137), 0 states have call successors, (0), 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 137 [2024-11-24 00:42:33,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:42:33,867 INFO L225 Difference]: With dead ends: 20544 [2024-11-24 00:42:33,867 INFO L226 Difference]: Without dead ends: 13853 [2024-11-24 00:42:33,874 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=146, Invalid=454, Unknown=0, NotChecked=0, Total=600 [2024-11-24 00:42:33,875 INFO L435 NwaCegarLoop]: 163 mSDtfsCounter, 883 mSDsluCounter, 822 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 883 SdHoareTripleChecker+Valid, 985 SdHoareTripleChecker+Invalid, 907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-24 00:42:33,875 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [883 Valid, 985 Invalid, 907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 899 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-24 00:42:33,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13853 states. [2024-11-24 00:42:34,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13853 to 6965. [2024-11-24 00:42:34,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6965 states, 6964 states have (on average 1.4685525560022976) internal successors, (10227), 6964 states have internal predecessors, (10227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:34,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6965 states to 6965 states and 10227 transitions. [2024-11-24 00:42:34,024 INFO L78 Accepts]: Start accepts. Automaton has 6965 states and 10227 transitions. Word has length 137 [2024-11-24 00:42:34,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:42:34,024 INFO L471 AbstractCegarLoop]: Abstraction has 6965 states and 10227 transitions. [2024-11-24 00:42:34,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.538461538461538) internal successors, (137), 12 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:34,025 INFO L276 IsEmpty]: Start isEmpty. Operand 6965 states and 10227 transitions. [2024-11-24 00:42:34,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-24 00:42:34,027 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:42:34,028 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:42:34,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-24 00:42:34,028 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:42:34,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:34,030 INFO L85 PathProgramCache]: Analyzing trace with hash -484651705, now seen corresponding path program 1 times [2024-11-24 00:42:34,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:34,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503003522] [2024-11-24 00:42:34,030 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:34,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:34,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:34,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:42:34,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:34,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503003522] [2024-11-24 00:42:34,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503003522] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:34,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:34,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-24 00:42:34,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116573783] [2024-11-24 00:42:34,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:34,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 00:42:34,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:34,783 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 00:42:34,783 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-24 00:42:34,783 INFO L87 Difference]: Start difference. First operand 6965 states and 10227 transitions. Second operand has 13 states, 13 states have (on average 10.615384615384615) internal successors, (138), 12 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:36,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:42:36,538 INFO L93 Difference]: Finished difference Result 20444 states and 30025 transitions. [2024-11-24 00:42:36,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-24 00:42:36,539 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.615384615384615) internal successors, (138), 12 states have internal predecessors, (138), 0 states have call successors, (0), 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 138 [2024-11-24 00:42:36,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:42:36,565 INFO L225 Difference]: With dead ends: 20444 [2024-11-24 00:42:36,565 INFO L226 Difference]: Without dead ends: 13808 [2024-11-24 00:42:36,572 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=146, Invalid=454, Unknown=0, NotChecked=0, Total=600 [2024-11-24 00:42:36,574 INFO L435 NwaCegarLoop]: 243 mSDtfsCounter, 633 mSDsluCounter, 1464 mSDsCounter, 0 mSdLazyCounter, 1566 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 633 SdHoareTripleChecker+Valid, 1707 SdHoareTripleChecker+Invalid, 1572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:42:36,574 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [633 Valid, 1707 Invalid, 1572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1566 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-24 00:42:36,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13808 states. [2024-11-24 00:42:36,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13808 to 6965. [2024-11-24 00:42:36,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6965 states, 6964 states have (on average 1.4666858127512923) internal successors, (10214), 6964 states have internal predecessors, (10214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:36,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6965 states to 6965 states and 10214 transitions. [2024-11-24 00:42:36,713 INFO L78 Accepts]: Start accepts. Automaton has 6965 states and 10214 transitions. Word has length 138 [2024-11-24 00:42:36,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:42:36,713 INFO L471 AbstractCegarLoop]: Abstraction has 6965 states and 10214 transitions. [2024-11-24 00:42:36,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.615384615384615) internal successors, (138), 12 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:36,714 INFO L276 IsEmpty]: Start isEmpty. Operand 6965 states and 10214 transitions. [2024-11-24 00:42:36,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-24 00:42:36,716 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:42:36,716 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:42:36,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-24 00:42:36,716 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:42:36,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:36,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1102502929, now seen corresponding path program 1 times [2024-11-24 00:42:36,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:36,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613520053] [2024-11-24 00:42:36,718 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:36,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:36,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:37,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:42:37,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:37,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613520053] [2024-11-24 00:42:37,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613520053] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:37,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:37,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 00:42:37,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658981419] [2024-11-24 00:42:37,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:37,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 00:42:37,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:37,344 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 00:42:37,344 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:42:37,344 INFO L87 Difference]: Start difference. First operand 6965 states and 10214 transitions. Second operand has 9 states, 9 states have (on average 15.444444444444445) internal successors, (139), 8 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:38,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:42:38,180 INFO L93 Difference]: Finished difference Result 20210 states and 29749 transitions. [2024-11-24 00:42:38,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:42:38,181 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.444444444444445) internal successors, (139), 8 states have internal predecessors, (139), 0 states have call successors, (0), 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 139 [2024-11-24 00:42:38,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:42:38,205 INFO L225 Difference]: With dead ends: 20210 [2024-11-24 00:42:38,205 INFO L226 Difference]: Without dead ends: 13521 [2024-11-24 00:42:38,213 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2024-11-24 00:42:38,214 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 1202 mSDsluCounter, 724 mSDsCounter, 0 mSdLazyCounter, 672 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1202 SdHoareTripleChecker+Valid, 891 SdHoareTripleChecker+Invalid, 676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:42:38,214 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1202 Valid, 891 Invalid, 676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 672 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 00:42:38,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13521 states. [2024-11-24 00:42:38,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13521 to 6965. [2024-11-24 00:42:38,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6965 states, 6964 states have (on average 1.4665422171165996) internal successors, (10213), 6964 states have internal predecessors, (10213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:38,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6965 states to 6965 states and 10213 transitions. [2024-11-24 00:42:38,365 INFO L78 Accepts]: Start accepts. Automaton has 6965 states and 10213 transitions. Word has length 139 [2024-11-24 00:42:38,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:42:38,365 INFO L471 AbstractCegarLoop]: Abstraction has 6965 states and 10213 transitions. [2024-11-24 00:42:38,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.444444444444445) internal successors, (139), 8 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:38,365 INFO L276 IsEmpty]: Start isEmpty. Operand 6965 states and 10213 transitions. [2024-11-24 00:42:38,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-24 00:42:38,368 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:42:38,368 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:42:38,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-24 00:42:38,369 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:42:38,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:38,369 INFO L85 PathProgramCache]: Analyzing trace with hash -549443807, now seen corresponding path program 1 times [2024-11-24 00:42:38,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:38,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605062317] [2024-11-24 00:42:38,370 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:38,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:38,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:38,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:42:38,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:38,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605062317] [2024-11-24 00:42:38,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605062317] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:38,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:38,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 00:42:38,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084125858] [2024-11-24 00:42:38,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:38,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 00:42:38,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:38,984 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 00:42:38,985 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:42:38,985 INFO L87 Difference]: Start difference. First operand 6965 states and 10213 transitions. Second operand has 10 states, 10 states have (on average 14.0) internal successors, (140), 9 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:39,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:42:39,907 INFO L93 Difference]: Finished difference Result 20500 states and 30078 transitions. [2024-11-24 00:42:39,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 00:42:39,907 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.0) internal successors, (140), 9 states have internal predecessors, (140), 0 states have call successors, (0), 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 140 [2024-11-24 00:42:39,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:42:39,925 INFO L225 Difference]: With dead ends: 20500 [2024-11-24 00:42:39,925 INFO L226 Difference]: Without dead ends: 13944 [2024-11-24 00:42:39,933 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-24 00:42:39,933 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 759 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 717 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 759 SdHoareTripleChecker+Valid, 858 SdHoareTripleChecker+Invalid, 725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:42:39,934 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [759 Valid, 858 Invalid, 725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 717 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 00:42:39,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13944 states. [2024-11-24 00:42:40,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13944 to 7016. [2024-11-24 00:42:40,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7016 states, 7015 states have (on average 1.4655737704918033) internal successors, (10281), 7015 states have internal predecessors, (10281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:40,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7016 states to 7016 states and 10281 transitions. [2024-11-24 00:42:40,069 INFO L78 Accepts]: Start accepts. Automaton has 7016 states and 10281 transitions. Word has length 140 [2024-11-24 00:42:40,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:42:40,069 INFO L471 AbstractCegarLoop]: Abstraction has 7016 states and 10281 transitions. [2024-11-24 00:42:40,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.0) internal successors, (140), 9 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:40,070 INFO L276 IsEmpty]: Start isEmpty. Operand 7016 states and 10281 transitions. [2024-11-24 00:42:40,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-24 00:42:40,073 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:42:40,073 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:42:40,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-24 00:42:40,073 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:42:40,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:40,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1239275984, now seen corresponding path program 1 times [2024-11-24 00:42:40,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:40,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778106226] [2024-11-24 00:42:40,074 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:40,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:40,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:40,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:42:40,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:40,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778106226] [2024-11-24 00:42:40,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778106226] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:40,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:40,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:42:40,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175756239] [2024-11-24 00:42:40,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:40,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:42:40,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:40,234 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:42:40,235 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:42:40,235 INFO L87 Difference]: Start difference. First operand 7016 states and 10281 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:40,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:42:40,307 INFO L93 Difference]: Finished difference Result 19824 states and 29247 transitions. [2024-11-24 00:42:40,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:42:40,308 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 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 141 [2024-11-24 00:42:40,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:42:40,326 INFO L225 Difference]: With dead ends: 19824 [2024-11-24 00:42:40,326 INFO L226 Difference]: Without dead ends: 13268 [2024-11-24 00:42:40,333 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:42:40,334 INFO L435 NwaCegarLoop]: 413 mSDtfsCounter, 152 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 638 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:42:40,335 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 638 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:42:40,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13268 states. [2024-11-24 00:42:40,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13268 to 12962. [2024-11-24 00:42:40,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12962 states, 12961 states have (on average 1.4619242342411851) internal successors, (18948), 12961 states have internal predecessors, (18948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:40,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12962 states to 12962 states and 18948 transitions. [2024-11-24 00:42:40,564 INFO L78 Accepts]: Start accepts. Automaton has 12962 states and 18948 transitions. Word has length 141 [2024-11-24 00:42:40,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:42:40,565 INFO L471 AbstractCegarLoop]: Abstraction has 12962 states and 18948 transitions. [2024-11-24 00:42:40,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:40,565 INFO L276 IsEmpty]: Start isEmpty. Operand 12962 states and 18948 transitions. [2024-11-24 00:42:40,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-24 00:42:40,567 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:42:40,567 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:42:40,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-24 00:42:40,568 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:42:40,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:40,569 INFO L85 PathProgramCache]: Analyzing trace with hash -503207952, now seen corresponding path program 1 times [2024-11-24 00:42:40,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:40,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884716969] [2024-11-24 00:42:40,569 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:40,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:40,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:41,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:42:41,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:41,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884716969] [2024-11-24 00:42:41,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884716969] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:41,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:41,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-24 00:42:41,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209105062] [2024-11-24 00:42:41,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:41,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 00:42:41,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:41,452 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 00:42:41,453 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-24 00:42:41,453 INFO L87 Difference]: Start difference. First operand 12962 states and 18948 transitions. Second operand has 13 states, 13 states have (on average 10.846153846153847) internal successors, (141), 12 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:44,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:42:44,084 INFO L93 Difference]: Finished difference Result 79303 states and 115718 transitions. [2024-11-24 00:42:44,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-24 00:42:44,085 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.846153846153847) internal successors, (141), 12 states have internal predecessors, (141), 0 states have call successors, (0), 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 141 [2024-11-24 00:42:44,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:42:44,155 INFO L225 Difference]: With dead ends: 79303 [2024-11-24 00:42:44,155 INFO L226 Difference]: Without dead ends: 66546 [2024-11-24 00:42:44,176 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=225, Invalid=645, Unknown=0, NotChecked=0, Total=870 [2024-11-24 00:42:44,177 INFO L435 NwaCegarLoop]: 333 mSDtfsCounter, 2211 mSDsluCounter, 1956 mSDsCounter, 0 mSdLazyCounter, 2008 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2211 SdHoareTripleChecker+Valid, 2289 SdHoareTripleChecker+Invalid, 2035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 2008 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-24 00:42:44,177 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2211 Valid, 2289 Invalid, 2035 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 2008 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-24 00:42:44,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66546 states. [2024-11-24 00:42:44,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66546 to 12971. [2024-11-24 00:42:44,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12971 states, 12970 states have (on average 1.461372397841172) internal successors, (18954), 12970 states have internal predecessors, (18954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:44,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12971 states to 12971 states and 18954 transitions. [2024-11-24 00:42:44,844 INFO L78 Accepts]: Start accepts. Automaton has 12971 states and 18954 transitions. Word has length 141 [2024-11-24 00:42:44,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:42:44,845 INFO L471 AbstractCegarLoop]: Abstraction has 12971 states and 18954 transitions. [2024-11-24 00:42:44,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.846153846153847) internal successors, (141), 12 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:44,845 INFO L276 IsEmpty]: Start isEmpty. Operand 12971 states and 18954 transitions. [2024-11-24 00:42:44,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-24 00:42:44,847 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:42:44,847 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:42:44,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-24 00:42:44,848 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:42:44,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:44,848 INFO L85 PathProgramCache]: Analyzing trace with hash 274274780, now seen corresponding path program 1 times [2024-11-24 00:42:44,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:44,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321806477] [2024-11-24 00:42:44,849 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:44,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:44,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:45,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:42:45,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:45,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321806477] [2024-11-24 00:42:45,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321806477] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:45,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:45,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 00:42:45,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650139706] [2024-11-24 00:42:45,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:45,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 00:42:45,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:45,328 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 00:42:45,329 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:42:45,329 INFO L87 Difference]: Start difference. First operand 12971 states and 18954 transitions. Second operand has 10 states, 10 states have (on average 14.2) internal successors, (142), 9 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:46,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:42:46,147 INFO L93 Difference]: Finished difference Result 38759 states and 56602 transitions. [2024-11-24 00:42:46,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 00:42:46,147 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.2) internal successors, (142), 9 states have internal predecessors, (142), 0 states have call successors, (0), 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 142 [2024-11-24 00:42:46,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:42:46,170 INFO L225 Difference]: With dead ends: 38759 [2024-11-24 00:42:46,170 INFO L226 Difference]: Without dead ends: 26032 [2024-11-24 00:42:46,181 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-24 00:42:46,182 INFO L435 NwaCegarLoop]: 188 mSDtfsCounter, 748 mSDsluCounter, 726 mSDsCounter, 0 mSdLazyCounter, 771 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 748 SdHoareTripleChecker+Valid, 914 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:42:46,182 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [748 Valid, 914 Invalid, 777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 771 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:42:46,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26032 states. [2024-11-24 00:42:46,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26032 to 12971. [2024-11-24 00:42:46,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12971 states, 12970 states have (on average 1.4606784888203546) internal successors, (18945), 12970 states have internal predecessors, (18945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:46,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12971 states to 12971 states and 18945 transitions. [2024-11-24 00:42:46,599 INFO L78 Accepts]: Start accepts. Automaton has 12971 states and 18945 transitions. Word has length 142 [2024-11-24 00:42:46,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:42:46,600 INFO L471 AbstractCegarLoop]: Abstraction has 12971 states and 18945 transitions. [2024-11-24 00:42:46,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.2) internal successors, (142), 9 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:46,600 INFO L276 IsEmpty]: Start isEmpty. Operand 12971 states and 18945 transitions. [2024-11-24 00:42:46,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-24 00:42:46,603 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:42:46,604 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:42:46,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-24 00:42:46,604 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:42:46,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:46,605 INFO L85 PathProgramCache]: Analyzing trace with hash -22724613, now seen corresponding path program 1 times [2024-11-24 00:42:46,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:46,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192647839] [2024-11-24 00:42:46,605 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:46,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:46,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:47,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:42:47,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:47,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192647839] [2024-11-24 00:42:47,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192647839] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:47,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:47,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-24 00:42:47,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123020773] [2024-11-24 00:42:47,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:47,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 00:42:47,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:47,920 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 00:42:47,920 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-24 00:42:47,920 INFO L87 Difference]: Start difference. First operand 12971 states and 18945 transitions. Second operand has 13 states, 13 states have (on average 11.0) internal successors, (143), 13 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:49,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:42:49,009 INFO L93 Difference]: Finished difference Result 28353 states and 41499 transitions. [2024-11-24 00:42:49,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-24 00:42:49,010 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 11.0) internal successors, (143), 13 states have internal predecessors, (143), 0 states have call successors, (0), 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 143 [2024-11-24 00:42:49,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:42:49,139 INFO L225 Difference]: With dead ends: 28353 [2024-11-24 00:42:49,139 INFO L226 Difference]: Without dead ends: 25623 [2024-11-24 00:42:49,143 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-11-24 00:42:49,144 INFO L435 NwaCegarLoop]: 407 mSDtfsCounter, 1068 mSDsluCounter, 2087 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1068 SdHoareTripleChecker+Valid, 2494 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:42:49,144 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1068 Valid, 2494 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:42:49,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25623 states. [2024-11-24 00:42:49,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25623 to 12918. [2024-11-24 00:42:49,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12918 states, 12917 states have (on average 1.4607106913369978) internal successors, (18868), 12917 states have internal predecessors, (18868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:49,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12918 states to 12918 states and 18868 transitions. [2024-11-24 00:42:49,386 INFO L78 Accepts]: Start accepts. Automaton has 12918 states and 18868 transitions. Word has length 143 [2024-11-24 00:42:49,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:42:49,386 INFO L471 AbstractCegarLoop]: Abstraction has 12918 states and 18868 transitions. [2024-11-24 00:42:49,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 11.0) internal successors, (143), 13 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:49,387 INFO L276 IsEmpty]: Start isEmpty. Operand 12918 states and 18868 transitions. [2024-11-24 00:42:49,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-24 00:42:49,388 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:42:49,389 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:42:49,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-24 00:42:49,389 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:42:49,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:49,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1765865703, now seen corresponding path program 1 times [2024-11-24 00:42:49,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:49,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083505331] [2024-11-24 00:42:49,391 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:49,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:49,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:50,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:42:50,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:50,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083505331] [2024-11-24 00:42:50,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083505331] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:50,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:50,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-24 00:42:50,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267690136] [2024-11-24 00:42:50,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:50,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 00:42:50,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:50,583 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 00:42:50,584 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-24 00:42:50,584 INFO L87 Difference]: Start difference. First operand 12918 states and 18868 transitions. Second operand has 13 states, 13 states have (on average 11.0) internal successors, (143), 13 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:51,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:42:51,664 INFO L93 Difference]: Finished difference Result 28206 states and 41290 transitions. [2024-11-24 00:42:51,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-24 00:42:51,665 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 11.0) internal successors, (143), 13 states have internal predecessors, (143), 0 states have call successors, (0), 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 143 [2024-11-24 00:42:51,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:42:51,697 INFO L225 Difference]: With dead ends: 28206 [2024-11-24 00:42:51,697 INFO L226 Difference]: Without dead ends: 25536 [2024-11-24 00:42:51,707 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-11-24 00:42:51,708 INFO L435 NwaCegarLoop]: 386 mSDtfsCounter, 1222 mSDsluCounter, 2162 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1222 SdHoareTripleChecker+Valid, 2548 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:42:51,708 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1222 Valid, 2548 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:42:51,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25536 states. [2024-11-24 00:42:51,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25536 to 12900. [2024-11-24 00:42:51,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12900 states, 12899 states have (on average 1.4601907124583302) internal successors, (18835), 12899 states have internal predecessors, (18835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:51,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12900 states to 12900 states and 18835 transitions. [2024-11-24 00:42:51,970 INFO L78 Accepts]: Start accepts. Automaton has 12900 states and 18835 transitions. Word has length 143 [2024-11-24 00:42:51,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:42:51,970 INFO L471 AbstractCegarLoop]: Abstraction has 12900 states and 18835 transitions. [2024-11-24 00:42:51,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 11.0) internal successors, (143), 13 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:51,971 INFO L276 IsEmpty]: Start isEmpty. Operand 12900 states and 18835 transitions. [2024-11-24 00:42:51,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-24 00:42:51,972 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:42:51,972 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:42:51,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-24 00:42:51,973 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:42:51,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:51,973 INFO L85 PathProgramCache]: Analyzing trace with hash 2082755259, now seen corresponding path program 1 times [2024-11-24 00:42:51,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:51,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782479866] [2024-11-24 00:42:51,974 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:51,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:52,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:53,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:42:53,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:53,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782479866] [2024-11-24 00:42:53,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782479866] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:53,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:53,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-24 00:42:53,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145632517] [2024-11-24 00:42:53,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:53,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 00:42:53,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:53,225 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 00:42:53,225 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-24 00:42:53,225 INFO L87 Difference]: Start difference. First operand 12900 states and 18835 transitions. Second operand has 14 states, 14 states have (on average 10.214285714285714) internal successors, (143), 14 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:54,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:42:54,723 INFO L93 Difference]: Finished difference Result 53235 states and 77996 transitions. [2024-11-24 00:42:54,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-24 00:42:54,724 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 10.214285714285714) internal successors, (143), 14 states have internal predecessors, (143), 0 states have call successors, (0), 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 143 [2024-11-24 00:42:54,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:42:54,770 INFO L225 Difference]: With dead ends: 53235 [2024-11-24 00:42:54,770 INFO L226 Difference]: Without dead ends: 50585 [2024-11-24 00:42:54,783 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-11-24 00:42:54,784 INFO L435 NwaCegarLoop]: 639 mSDtfsCounter, 1208 mSDsluCounter, 4076 mSDsCounter, 0 mSdLazyCounter, 585 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1208 SdHoareTripleChecker+Valid, 4715 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:42:54,784 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1208 Valid, 4715 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 585 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:42:54,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50585 states. [2024-11-24 00:42:55,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50585 to 12892. [2024-11-24 00:42:55,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12892 states, 12891 states have (on average 1.4596229927856643) internal successors, (18816), 12891 states have internal predecessors, (18816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:55,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12892 states to 12892 states and 18816 transitions. [2024-11-24 00:42:55,098 INFO L78 Accepts]: Start accepts. Automaton has 12892 states and 18816 transitions. Word has length 143 [2024-11-24 00:42:55,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:42:55,098 INFO L471 AbstractCegarLoop]: Abstraction has 12892 states and 18816 transitions. [2024-11-24 00:42:55,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 10.214285714285714) internal successors, (143), 14 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:55,099 INFO L276 IsEmpty]: Start isEmpty. Operand 12892 states and 18816 transitions. [2024-11-24 00:42:55,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-24 00:42:55,100 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:42:55,100 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:42:55,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-24 00:42:55,100 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:42:55,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:55,101 INFO L85 PathProgramCache]: Analyzing trace with hash -549225923, now seen corresponding path program 1 times [2024-11-24 00:42:55,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:55,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192688158] [2024-11-24 00:42:55,101 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:55,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:55,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:56,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:42:56,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:56,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192688158] [2024-11-24 00:42:56,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192688158] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:56,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:56,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-24 00:42:56,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511851674] [2024-11-24 00:42:56,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:56,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 00:42:56,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:56,550 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 00:42:56,550 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-24 00:42:56,550 INFO L87 Difference]: Start difference. First operand 12892 states and 18816 transitions. Second operand has 14 states, 14 states have (on average 10.214285714285714) internal successors, (143), 14 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:57,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:42:57,779 INFO L93 Difference]: Finished difference Result 53384 states and 78170 transitions. [2024-11-24 00:42:57,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-24 00:42:57,779 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 10.214285714285714) internal successors, (143), 14 states have internal predecessors, (143), 0 states have call successors, (0), 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 143 [2024-11-24 00:42:57,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:42:57,837 INFO L225 Difference]: With dead ends: 53384 [2024-11-24 00:42:57,837 INFO L226 Difference]: Without dead ends: 50694 [2024-11-24 00:42:57,851 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-11-24 00:42:57,852 INFO L435 NwaCegarLoop]: 445 mSDtfsCounter, 1730 mSDsluCounter, 2703 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1730 SdHoareTripleChecker+Valid, 3148 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:42:57,852 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1730 Valid, 3148 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:42:57,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50694 states. [2024-11-24 00:42:58,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50694 to 12864. [2024-11-24 00:42:58,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12864 states, 12863 states have (on average 1.4596128430381714) internal successors, (18775), 12863 states have internal predecessors, (18775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:58,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12864 states to 12864 states and 18775 transitions. [2024-11-24 00:42:58,205 INFO L78 Accepts]: Start accepts. Automaton has 12864 states and 18775 transitions. Word has length 143 [2024-11-24 00:42:58,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:42:58,205 INFO L471 AbstractCegarLoop]: Abstraction has 12864 states and 18775 transitions. [2024-11-24 00:42:58,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 10.214285714285714) internal successors, (143), 14 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:42:58,205 INFO L276 IsEmpty]: Start isEmpty. Operand 12864 states and 18775 transitions. [2024-11-24 00:42:58,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-24 00:42:58,206 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:42:58,207 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:42:58,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-24 00:42:58,207 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:42:58,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:58,207 INFO L85 PathProgramCache]: Analyzing trace with hash 971465022, now seen corresponding path program 1 times [2024-11-24 00:42:58,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:58,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061760523] [2024-11-24 00:42:58,207 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:58,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:58,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:59,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:42:59,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:59,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061760523] [2024-11-24 00:42:59,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061760523] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:59,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:59,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-24 00:42:59,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575384009] [2024-11-24 00:42:59,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:59,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 00:42:59,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:59,301 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 00:42:59,301 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-24 00:42:59,301 INFO L87 Difference]: Start difference. First operand 12864 states and 18775 transitions. Second operand has 14 states, 14 states have (on average 10.214285714285714) internal successors, (143), 14 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:43:00,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:43:00,411 INFO L93 Difference]: Finished difference Result 53395 states and 78179 transitions. [2024-11-24 00:43:00,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-24 00:43:00,412 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 10.214285714285714) internal successors, (143), 14 states have internal predecessors, (143), 0 states have call successors, (0), 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 143 [2024-11-24 00:43:00,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:43:00,451 INFO L225 Difference]: With dead ends: 53395 [2024-11-24 00:43:00,451 INFO L226 Difference]: Without dead ends: 50685 [2024-11-24 00:43:00,462 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-11-24 00:43:00,463 INFO L435 NwaCegarLoop]: 695 mSDtfsCounter, 1233 mSDsluCounter, 5119 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1233 SdHoareTripleChecker+Valid, 5814 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:43:00,463 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1233 Valid, 5814 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 652 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:43:00,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50685 states. [2024-11-24 00:43:00,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50685 to 12807. [2024-11-24 00:43:00,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12807 states, 12806 states have (on average 1.4604872715914414) internal successors, (18703), 12806 states have internal predecessors, (18703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:43:00,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12807 states to 12807 states and 18703 transitions. [2024-11-24 00:43:00,719 INFO L78 Accepts]: Start accepts. Automaton has 12807 states and 18703 transitions. Word has length 143 [2024-11-24 00:43:00,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:43:00,719 INFO L471 AbstractCegarLoop]: Abstraction has 12807 states and 18703 transitions. [2024-11-24 00:43:00,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 10.214285714285714) internal successors, (143), 14 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:43:00,719 INFO L276 IsEmpty]: Start isEmpty. Operand 12807 states and 18703 transitions. [2024-11-24 00:43:00,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-24 00:43:00,720 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:43:00,720 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:43:00,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-24 00:43:00,720 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:43:00,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:43:00,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1604250176, now seen corresponding path program 1 times [2024-11-24 00:43:00,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:43:00,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893229704] [2024-11-24 00:43:00,721 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:43:00,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:43:00,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:43:01,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:43:01,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:43:01,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893229704] [2024-11-24 00:43:01,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893229704] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:43:01,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:43:01,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-24 00:43:01,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365554607] [2024-11-24 00:43:01,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:43:01,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 00:43:01,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:43:01,594 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 00:43:01,594 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-24 00:43:01,594 INFO L87 Difference]: Start difference. First operand 12807 states and 18703 transitions. Second operand has 13 states, 13 states have (on average 11.0) internal successors, (143), 13 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:43:02,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:43:02,460 INFO L93 Difference]: Finished difference Result 16759 states and 24505 transitions. [2024-11-24 00:43:02,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-24 00:43:02,460 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 11.0) internal successors, (143), 13 states have internal predecessors, (143), 0 states have call successors, (0), 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 143 [2024-11-24 00:43:02,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:43:02,469 INFO L225 Difference]: With dead ends: 16759 [2024-11-24 00:43:02,469 INFO L226 Difference]: Without dead ends: 14038 [2024-11-24 00:43:02,473 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-11-24 00:43:02,474 INFO L435 NwaCegarLoop]: 295 mSDtfsCounter, 1285 mSDsluCounter, 2208 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1285 SdHoareTripleChecker+Valid, 2503 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:43:02,474 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1285 Valid, 2503 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:43:02,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14038 states. [2024-11-24 00:43:02,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14038 to 12720. [2024-11-24 00:43:02,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12720 states, 12719 states have (on average 1.4622218727887413) internal successors, (18598), 12719 states have internal predecessors, (18598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:43:02,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12720 states to 12720 states and 18598 transitions. [2024-11-24 00:43:02,641 INFO L78 Accepts]: Start accepts. Automaton has 12720 states and 18598 transitions. Word has length 143 [2024-11-24 00:43:02,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:43:02,641 INFO L471 AbstractCegarLoop]: Abstraction has 12720 states and 18598 transitions. [2024-11-24 00:43:02,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 11.0) internal successors, (143), 13 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:43:02,641 INFO L276 IsEmpty]: Start isEmpty. Operand 12720 states and 18598 transitions. [2024-11-24 00:43:02,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-24 00:43:02,642 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:43:02,642 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:43:02,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-24 00:43:02,642 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:43:02,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:43:02,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1017602881, now seen corresponding path program 1 times [2024-11-24 00:43:02,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:43:02,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812785877] [2024-11-24 00:43:02,643 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:43:02,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:43:02,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:43:09,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:43:09,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:43:09,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812785877] [2024-11-24 00:43:09,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812785877] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:43:09,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:43:09,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [52] imperfect sequences [] total 52 [2024-11-24 00:43:09,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373372100] [2024-11-24 00:43:09,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:43:09,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2024-11-24 00:43:09,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:43:09,730 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2024-11-24 00:43:09,731 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=2479, Unknown=0, NotChecked=0, Total=2652 [2024-11-24 00:43:09,731 INFO L87 Difference]: Start difference. First operand 12720 states and 18598 transitions. Second operand has 52 states, 52 states have (on average 2.75) internal successors, (143), 52 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:43:31,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:43:31,168 INFO L93 Difference]: Finished difference Result 23386 states and 34185 transitions. [2024-11-24 00:43:31,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2024-11-24 00:43:31,169 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 2.75) internal successors, (143), 52 states have internal predecessors, (143), 0 states have call successors, (0), 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 143 [2024-11-24 00:43:31,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:43:31,184 INFO L225 Difference]: With dead ends: 23386 [2024-11-24 00:43:31,184 INFO L226 Difference]: Without dead ends: 22068 [2024-11-24 00:43:31,190 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1409 ImplicationChecksByTransitivity, 12.5s TimeCoverageRelationStatistics Valid=1413, Invalid=8289, Unknown=0, NotChecked=0, Total=9702 [2024-11-24 00:43:31,190 INFO L435 NwaCegarLoop]: 676 mSDtfsCounter, 4281 mSDsluCounter, 17645 mSDsCounter, 0 mSdLazyCounter, 13798 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4281 SdHoareTripleChecker+Valid, 18321 SdHoareTripleChecker+Invalid, 13821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 13798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2024-11-24 00:43:31,190 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4281 Valid, 18321 Invalid, 13821 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [23 Valid, 13798 Invalid, 0 Unknown, 0 Unchecked, 11.8s Time] [2024-11-24 00:43:31,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22068 states. [2024-11-24 00:43:31,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22068 to 12743. [2024-11-24 00:43:31,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12743 states, 12742 states have (on average 1.4618584209700205) internal successors, (18627), 12742 states have internal predecessors, (18627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:43:31,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12743 states to 12743 states and 18627 transitions. [2024-11-24 00:43:31,326 INFO L78 Accepts]: Start accepts. Automaton has 12743 states and 18627 transitions. Word has length 143 [2024-11-24 00:43:31,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:43:31,326 INFO L471 AbstractCegarLoop]: Abstraction has 12743 states and 18627 transitions. [2024-11-24 00:43:31,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 2.75) internal successors, (143), 52 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:43:31,326 INFO L276 IsEmpty]: Start isEmpty. Operand 12743 states and 18627 transitions. [2024-11-24 00:43:31,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-24 00:43:31,327 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:43:31,327 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:43:31,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-24 00:43:31,327 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:43:31,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:43:31,327 INFO L85 PathProgramCache]: Analyzing trace with hash 984650235, now seen corresponding path program 1 times [2024-11-24 00:43:31,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:43:31,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183743762] [2024-11-24 00:43:31,328 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:43:31,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:43:31,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:43:31,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:43:31,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:43:31,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183743762] [2024-11-24 00:43:31,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183743762] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:43:31,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:43:31,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 00:43:31,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906943580] [2024-11-24 00:43:31,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:43:31,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 00:43:31,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:43:31,731 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 00:43:31,732 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:43:31,733 INFO L87 Difference]: Start difference. First operand 12743 states and 18627 transitions. Second operand has 10 states, 10 states have (on average 14.3) internal successors, (143), 9 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:43:32,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:43:32,657 INFO L93 Difference]: Finished difference Result 38200 states and 55820 transitions. [2024-11-24 00:43:32,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 00:43:32,657 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.3) internal successors, (143), 9 states have internal predecessors, (143), 0 states have call successors, (0), 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 143 [2024-11-24 00:43:32,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:43:32,675 INFO L225 Difference]: With dead ends: 38200 [2024-11-24 00:43:32,675 INFO L226 Difference]: Without dead ends: 25626 [2024-11-24 00:43:32,684 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-24 00:43:32,684 INFO L435 NwaCegarLoop]: 247 mSDtfsCounter, 614 mSDsluCounter, 955 mSDsCounter, 0 mSdLazyCounter, 1066 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 614 SdHoareTripleChecker+Valid, 1202 SdHoareTripleChecker+Invalid, 1071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1066 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 00:43:32,684 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [614 Valid, 1202 Invalid, 1071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1066 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 00:43:32,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25626 states. [2024-11-24 00:43:32,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25626 to 12737. [2024-11-24 00:43:32,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12737 states, 12736 states have (on average 1.4618404522613064) internal successors, (18618), 12736 states have internal predecessors, (18618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:43:32,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12737 states to 12737 states and 18618 transitions. [2024-11-24 00:43:32,885 INFO L78 Accepts]: Start accepts. Automaton has 12737 states and 18618 transitions. Word has length 143 [2024-11-24 00:43:32,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:43:32,885 INFO L471 AbstractCegarLoop]: Abstraction has 12737 states and 18618 transitions. [2024-11-24 00:43:32,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.3) internal successors, (143), 9 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:43:32,885 INFO L276 IsEmpty]: Start isEmpty. Operand 12737 states and 18618 transitions. [2024-11-24 00:43:32,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-24 00:43:32,886 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:43:32,886 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:43:32,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-24 00:43:32,887 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:43:32,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:43:32,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1678065761, now seen corresponding path program 1 times [2024-11-24 00:43:32,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:43:32,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226765244] [2024-11-24 00:43:32,887 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:43:32,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:43:32,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:43:33,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:43:33,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:43:33,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226765244] [2024-11-24 00:43:33,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226765244] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:43:33,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:43:33,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:43:33,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113760559] [2024-11-24 00:43:33,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:43:33,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:43:33,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:43:33,109 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:43:33,109 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:43:33,109 INFO L87 Difference]: Start difference. First operand 12737 states and 18618 transitions. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:43:33,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:43:33,225 INFO L93 Difference]: Finished difference Result 30967 states and 45402 transitions. [2024-11-24 00:43:33,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:43:33,226 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 0 states have call successors, (0), 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 144 [2024-11-24 00:43:33,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:43:33,247 INFO L225 Difference]: With dead ends: 30967 [2024-11-24 00:43:33,247 INFO L226 Difference]: Without dead ends: 18465 [2024-11-24 00:43:33,256 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 [2024-11-24 00:43:33,257 INFO L435 NwaCegarLoop]: 375 mSDtfsCounter, 133 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 779 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:43:33,257 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 779 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:43:33,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18465 states. [2024-11-24 00:43:33,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18465 to 18463. [2024-11-24 00:43:33,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18463 states, 18462 states have (on average 1.4588885277868053) internal successors, (26934), 18462 states have internal predecessors, (26934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:43:33,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18463 states to 18463 states and 26934 transitions. [2024-11-24 00:43:33,471 INFO L78 Accepts]: Start accepts. Automaton has 18463 states and 26934 transitions. Word has length 144 [2024-11-24 00:43:33,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:43:33,471 INFO L471 AbstractCegarLoop]: Abstraction has 18463 states and 26934 transitions. [2024-11-24 00:43:33,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:43:33,471 INFO L276 IsEmpty]: Start isEmpty. Operand 18463 states and 26934 transitions. [2024-11-24 00:43:33,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-24 00:43:33,471 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:43:33,472 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:43:33,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-24 00:43:33,472 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:43:33,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:43:33,473 INFO L85 PathProgramCache]: Analyzing trace with hash -234548188, now seen corresponding path program 1 times [2024-11-24 00:43:33,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:43:33,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902871146] [2024-11-24 00:43:33,473 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:43:33,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:43:33,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:43:39,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:43:39,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:43:39,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902871146] [2024-11-24 00:43:39,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902871146] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:43:39,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:43:39,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [51] imperfect sequences [] total 51 [2024-11-24 00:43:39,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635448255] [2024-11-24 00:43:39,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:43:39,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2024-11-24 00:43:39,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:43:39,977 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2024-11-24 00:43:39,977 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=2385, Unknown=0, NotChecked=0, Total=2550 [2024-11-24 00:43:39,978 INFO L87 Difference]: Start difference. First operand 18463 states and 26934 transitions. Second operand has 51 states, 51 states have (on average 2.823529411764706) internal successors, (144), 51 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:44:04,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:44:04,131 INFO L93 Difference]: Finished difference Result 53447 states and 78046 transitions. [2024-11-24 00:44:04,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2024-11-24 00:44:04,131 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 51 states have (on average 2.823529411764706) internal successors, (144), 51 states have internal predecessors, (144), 0 states have call successors, (0), 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 144 [2024-11-24 00:44:04,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:44:04,172 INFO L225 Difference]: With dead ends: 53447 [2024-11-24 00:44:04,172 INFO L226 Difference]: Without dead ends: 50177 [2024-11-24 00:44:04,188 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1443 ImplicationChecksByTransitivity, 10.7s TimeCoverageRelationStatistics Valid=1262, Invalid=8050, Unknown=0, NotChecked=0, Total=9312 [2024-11-24 00:44:04,188 INFO L435 NwaCegarLoop]: 1043 mSDtfsCounter, 3979 mSDsluCounter, 26858 mSDsCounter, 0 mSdLazyCounter, 19051 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3979 SdHoareTripleChecker+Valid, 27901 SdHoareTripleChecker+Invalid, 19074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 19051 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.8s IncrementalHoareTripleChecker+Time [2024-11-24 00:44:04,189 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3979 Valid, 27901 Invalid, 19074 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [23 Valid, 19051 Invalid, 0 Unknown, 0 Unchecked, 15.8s Time] [2024-11-24 00:44:04,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50177 states. [2024-11-24 00:44:04,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50177 to 18489. [2024-11-24 00:44:04,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18489 states, 18488 states have (on average 1.458567719601904) internal successors, (26966), 18488 states have internal predecessors, (26966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:44:04,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18489 states to 18489 states and 26966 transitions. [2024-11-24 00:44:04,593 INFO L78 Accepts]: Start accepts. Automaton has 18489 states and 26966 transitions. Word has length 144 [2024-11-24 00:44:04,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:44:04,594 INFO L471 AbstractCegarLoop]: Abstraction has 18489 states and 26966 transitions. [2024-11-24 00:44:04,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 2.823529411764706) internal successors, (144), 51 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:44:04,594 INFO L276 IsEmpty]: Start isEmpty. Operand 18489 states and 26966 transitions. [2024-11-24 00:44:04,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-24 00:44:04,595 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:44:04,595 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:44:04,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-24 00:44:04,595 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:44:04,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:44:04,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1580532134, now seen corresponding path program 1 times [2024-11-24 00:44:04,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:44:04,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797294447] [2024-11-24 00:44:04,596 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:44:04,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:44:04,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:44:05,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:44:05,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:44:05,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797294447] [2024-11-24 00:44:05,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797294447] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:44:05,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:44:05,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-24 00:44:05,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403872757] [2024-11-24 00:44:05,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:44:05,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 00:44:05,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:44:05,505 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 00:44:05,506 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-24 00:44:05,506 INFO L87 Difference]: Start difference. First operand 18489 states and 26966 transitions. Second operand has 14 states, 14 states have (on average 10.285714285714286) internal successors, (144), 14 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:44:06,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:44:06,789 INFO L93 Difference]: Finished difference Result 77103 states and 112746 transitions. [2024-11-24 00:44:06,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-24 00:44:06,789 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 10.285714285714286) internal successors, (144), 14 states have internal predecessors, (144), 0 states have call successors, (0), 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 144 [2024-11-24 00:44:06,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:44:06,841 INFO L225 Difference]: With dead ends: 77103 [2024-11-24 00:44:06,841 INFO L226 Difference]: Without dead ends: 73197 [2024-11-24 00:44:06,851 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-11-24 00:44:06,852 INFO L435 NwaCegarLoop]: 624 mSDtfsCounter, 982 mSDsluCounter, 5477 mSDsCounter, 0 mSdLazyCounter, 671 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 982 SdHoareTripleChecker+Valid, 6101 SdHoareTripleChecker+Invalid, 675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:44:06,852 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [982 Valid, 6101 Invalid, 675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 671 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:44:06,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73197 states. [2024-11-24 00:44:07,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73197 to 18443. [2024-11-24 00:44:07,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18443 states, 18442 states have (on average 1.4592235115497234) internal successors, (26911), 18442 states have internal predecessors, (26911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:44:07,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18443 states to 18443 states and 26911 transitions. [2024-11-24 00:44:07,286 INFO L78 Accepts]: Start accepts. Automaton has 18443 states and 26911 transitions. Word has length 144 [2024-11-24 00:44:07,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:44:07,286 INFO L471 AbstractCegarLoop]: Abstraction has 18443 states and 26911 transitions. [2024-11-24 00:44:07,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 10.285714285714286) internal successors, (144), 14 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:44:07,286 INFO L276 IsEmpty]: Start isEmpty. Operand 18443 states and 26911 transitions. [2024-11-24 00:44:07,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-24 00:44:07,287 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:44:07,287 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:44:07,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-24 00:44:07,287 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:44:07,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:44:07,288 INFO L85 PathProgramCache]: Analyzing trace with hash 295366011, now seen corresponding path program 1 times [2024-11-24 00:44:07,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:44:07,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003329376] [2024-11-24 00:44:07,288 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:44:07,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:44:07,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:44:07,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:44:07,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:44:07,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003329376] [2024-11-24 00:44:07,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003329376] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:44:07,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:44:07,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-24 00:44:07,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202563397] [2024-11-24 00:44:07,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:44:07,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 00:44:07,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:44:07,859 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 00:44:07,859 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-24 00:44:07,859 INFO L87 Difference]: Start difference. First operand 18443 states and 26911 transitions. Second operand has 12 states, 12 states have (on average 12.0) internal successors, (144), 12 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:44:08,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:44:08,516 INFO L93 Difference]: Finished difference Result 39305 states and 57459 transitions. [2024-11-24 00:44:08,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 00:44:08,516 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 12.0) internal successors, (144), 12 states have internal predecessors, (144), 0 states have call successors, (0), 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 144 [2024-11-24 00:44:08,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:44:08,542 INFO L225 Difference]: With dead ends: 39305 [2024-11-24 00:44:08,542 INFO L226 Difference]: Without dead ends: 35999 [2024-11-24 00:44:08,551 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=135, Invalid=327, Unknown=0, NotChecked=0, Total=462 [2024-11-24 00:44:08,551 INFO L435 NwaCegarLoop]: 372 mSDtfsCounter, 838 mSDsluCounter, 2035 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 838 SdHoareTripleChecker+Valid, 2407 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:44:08,552 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [838 Valid, 2407 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:44:08,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35999 states. [2024-11-24 00:44:08,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35999 to 18089. [2024-11-24 00:44:08,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18089 states, 18088 states have (on average 1.4599181777974348) internal successors, (26407), 18088 states have internal predecessors, (26407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:44:08,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18089 states to 18089 states and 26407 transitions. [2024-11-24 00:44:08,801 INFO L78 Accepts]: Start accepts. Automaton has 18089 states and 26407 transitions. Word has length 144 [2024-11-24 00:44:08,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:44:08,801 INFO L471 AbstractCegarLoop]: Abstraction has 18089 states and 26407 transitions. [2024-11-24 00:44:08,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.0) internal successors, (144), 12 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:44:08,801 INFO L276 IsEmpty]: Start isEmpty. Operand 18089 states and 26407 transitions. [2024-11-24 00:44:08,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-24 00:44:08,804 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:44:08,804 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:44:08,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-24 00:44:08,804 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:44:08,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:44:08,805 INFO L85 PathProgramCache]: Analyzing trace with hash -816022173, now seen corresponding path program 1 times [2024-11-24 00:44:08,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:44:08,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852960644] [2024-11-24 00:44:08,805 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:44:08,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:44:08,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:44:08,997 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:44:08,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:44:08,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852960644] [2024-11-24 00:44:08,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852960644] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:44:08,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:44:08,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:44:08,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390273610] [2024-11-24 00:44:08,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:44:08,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:44:08,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:44:08,999 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:44:08,999 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:44:08,999 INFO L87 Difference]: Start difference. First operand 18089 states and 26407 transitions. Second operand has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:44:09,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:44:09,117 INFO L93 Difference]: Finished difference Result 37497 states and 54828 transitions. [2024-11-24 00:44:09,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:44:09,118 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 0 states have call successors, (0), 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 184 [2024-11-24 00:44:09,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:44:09,146 INFO L225 Difference]: With dead ends: 37497 [2024-11-24 00:44:09,147 INFO L226 Difference]: Without dead ends: 24995 [2024-11-24 00:44:09,158 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:44:09,164 INFO L435 NwaCegarLoop]: 384 mSDtfsCounter, 127 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:44:09,164 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 619 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:44:09,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24995 states. [2024-11-24 00:44:09,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24995 to 24377. [2024-11-24 00:44:09,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24377 states, 24376 states have (on average 1.4550787659993436) internal successors, (35469), 24376 states have internal predecessors, (35469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:44:09,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24377 states to 24377 states and 35469 transitions. [2024-11-24 00:44:09,476 INFO L78 Accepts]: Start accepts. Automaton has 24377 states and 35469 transitions. Word has length 184 [2024-11-24 00:44:09,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:44:09,476 INFO L471 AbstractCegarLoop]: Abstraction has 24377 states and 35469 transitions. [2024-11-24 00:44:09,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:44:09,476 INFO L276 IsEmpty]: Start isEmpty. Operand 24377 states and 35469 transitions. [2024-11-24 00:44:09,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-11-24 00:44:09,478 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:44:09,478 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:44:09,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-24 00:44:09,478 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:44:09,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:44:09,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1638159288, now seen corresponding path program 1 times [2024-11-24 00:44:09,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:44:09,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954468109] [2024-11-24 00:44:09,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:44:09,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:44:09,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:44:09,703 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:44:09,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:44:09,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954468109] [2024-11-24 00:44:09,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954468109] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:44:09,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:44:09,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:44:09,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336679683] [2024-11-24 00:44:09,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:44:09,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:44:09,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:44:09,705 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:44:09,705 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:44:09,705 INFO L87 Difference]: Start difference. First operand 24377 states and 35469 transitions. Second operand has 7 states, 7 states have (on average 26.571428571428573) internal successors, (186), 6 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:44:10,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:44:10,296 INFO L93 Difference]: Finished difference Result 100557 states and 147123 transitions. [2024-11-24 00:44:10,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:44:10,297 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.571428571428573) internal successors, (186), 6 states have internal predecessors, (186), 0 states have call successors, (0), 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 186 [2024-11-24 00:44:10,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:44:10,373 INFO L225 Difference]: With dead ends: 100557 [2024-11-24 00:44:10,373 INFO L226 Difference]: Without dead ends: 76379 [2024-11-24 00:44:10,395 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 [2024-11-24 00:44:10,396 INFO L435 NwaCegarLoop]: 161 mSDtfsCounter, 1558 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1558 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:44:10,397 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1558 Valid, 565 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:44:10,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76379 states. [2024-11-24 00:44:10,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76379 to 51513. [2024-11-24 00:44:10,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51513 states, 51512 states have (on average 1.4533895014753844) internal successors, (74867), 51512 states have internal predecessors, (74867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:44:11,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51513 states to 51513 states and 74867 transitions. [2024-11-24 00:44:11,002 INFO L78 Accepts]: Start accepts. Automaton has 51513 states and 74867 transitions. Word has length 186 [2024-11-24 00:44:11,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:44:11,002 INFO L471 AbstractCegarLoop]: Abstraction has 51513 states and 74867 transitions. [2024-11-24 00:44:11,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.571428571428573) internal successors, (186), 6 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:44:11,003 INFO L276 IsEmpty]: Start isEmpty. Operand 51513 states and 74867 transitions. [2024-11-24 00:44:11,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-11-24 00:44:11,005 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:44:11,006 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:44:11,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-24 00:44:11,006 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:44:11,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:44:11,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1377739686, now seen corresponding path program 1 times [2024-11-24 00:44:11,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:44:11,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421724098] [2024-11-24 00:44:11,007 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:44:11,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:44:11,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:44:11,253 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:44:11,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:44:11,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421724098] [2024-11-24 00:44:11,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421724098] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:44:11,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:44:11,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:44:11,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205646085] [2024-11-24 00:44:11,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:44:11,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:44:11,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:44:11,254 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:44:11,254 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:44:11,255 INFO L87 Difference]: Start difference. First operand 51513 states and 74867 transitions. Second operand has 7 states, 7 states have (on average 26.571428571428573) internal successors, (186), 6 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:44:12,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:44:12,154 INFO L93 Difference]: Finished difference Result 186109 states and 270941 transitions. [2024-11-24 00:44:12,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:44:12,155 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.571428571428573) internal successors, (186), 6 states have internal predecessors, (186), 0 states have call successors, (0), 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 186 [2024-11-24 00:44:12,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:44:12,290 INFO L225 Difference]: With dead ends: 186109 [2024-11-24 00:44:12,290 INFO L226 Difference]: Without dead ends: 134795 [2024-11-24 00:44:12,332 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 [2024-11-24 00:44:12,333 INFO L435 NwaCegarLoop]: 161 mSDtfsCounter, 1388 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1388 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:44:12,333 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1388 Valid, 561 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:44:12,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134795 states. [2024-11-24 00:44:13,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134795 to 108745. [2024-11-24 00:44:13,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108745 states, 108744 states have (on average 1.451178915618333) internal successors, (157807), 108744 states have internal predecessors, (157807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:44:14,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108745 states to 108745 states and 157807 transitions. [2024-11-24 00:44:14,264 INFO L78 Accepts]: Start accepts. Automaton has 108745 states and 157807 transitions. Word has length 186 [2024-11-24 00:44:14,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:44:14,264 INFO L471 AbstractCegarLoop]: Abstraction has 108745 states and 157807 transitions. [2024-11-24 00:44:14,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.571428571428573) internal successors, (186), 6 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:44:14,265 INFO L276 IsEmpty]: Start isEmpty. Operand 108745 states and 157807 transitions. [2024-11-24 00:44:14,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-11-24 00:44:14,268 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:44:14,268 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:44:14,268 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-11-24 00:44:14,268 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:44:14,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:44:14,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1717236820, now seen corresponding path program 1 times [2024-11-24 00:44:14,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:44:14,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393762265] [2024-11-24 00:44:14,269 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:44:14,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:44:14,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:44:14,668 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:44:14,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:44:14,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393762265] [2024-11-24 00:44:14,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393762265] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:44:14,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:44:14,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:44:14,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809913698] [2024-11-24 00:44:14,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:44:14,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:44:14,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:44:14,670 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:44:14,670 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:44:14,670 INFO L87 Difference]: Start difference. First operand 108745 states and 157807 transitions. Second operand has 7 states, 7 states have (on average 26.571428571428573) internal successors, (186), 6 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:44:16,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:44:16,041 INFO L93 Difference]: Finished difference Result 366093 states and 531009 transitions. [2024-11-24 00:44:16,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:44:16,041 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.571428571428573) internal successors, (186), 6 states have internal predecessors, (186), 0 states have call successors, (0), 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 186 [2024-11-24 00:44:16,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:44:16,359 INFO L225 Difference]: With dead ends: 366093 [2024-11-24 00:44:16,360 INFO L226 Difference]: Without dead ends: 257547 [2024-11-24 00:44:16,418 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 [2024-11-24 00:44:16,418 INFO L435 NwaCegarLoop]: 161 mSDtfsCounter, 1303 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1303 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:44:16,419 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1303 Valid, 559 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:44:16,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257547 states. [2024-11-24 00:44:19,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257547 to 229129. [2024-11-24 00:44:19,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229129 states, 229128 states have (on average 1.4488626444607382) internal successors, (331975), 229128 states have internal predecessors, (331975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:44:19,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229129 states to 229129 states and 331975 transitions. [2024-11-24 00:44:19,704 INFO L78 Accepts]: Start accepts. Automaton has 229129 states and 331975 transitions. Word has length 186 [2024-11-24 00:44:19,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:44:19,704 INFO L471 AbstractCegarLoop]: Abstraction has 229129 states and 331975 transitions. [2024-11-24 00:44:19,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.571428571428573) internal successors, (186), 6 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:44:19,704 INFO L276 IsEmpty]: Start isEmpty. Operand 229129 states and 331975 transitions. [2024-11-24 00:44:19,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-11-24 00:44:19,707 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:44:19,707 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:44:19,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-11-24 00:44:19,708 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:44:19,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:44:19,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1659131311, now seen corresponding path program 1 times [2024-11-24 00:44:19,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:44:19,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125385727] [2024-11-24 00:44:19,708 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:44:19,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:44:19,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:44:20,390 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:44:20,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:44:20,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125385727] [2024-11-24 00:44:20,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125385727] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:44:20,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [308910903] [2024-11-24 00:44:20,390 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:44:20,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:44:20,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2cbd194-fe6c-46ac-bcab-a108d280e6d1/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:44:20,395 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2cbd194-fe6c-46ac-bcab-a108d280e6d1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:44:20,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2cbd194-fe6c-46ac-bcab-a108d280e6d1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 00:44:20,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:44:20,715 INFO L256 TraceCheckSpWp]: Trace formula consists of 851 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-24 00:44:20,723 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:44:21,378 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:44:21,378 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:44:21,716 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:44:21,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [308910903] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:44:21,716 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:44:21,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2024-11-24 00:44:21,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816127951] [2024-11-24 00:44:21,717 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:44:21,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 00:44:21,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:44:21,718 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 00:44:21,718 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:44:21,718 INFO L87 Difference]: Start difference. First operand 229129 states and 331975 transitions. Second operand has 11 states, 11 states have (on average 30.272727272727273) internal successors, (333), 10 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:44:24,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:44:24,273 INFO L93 Difference]: Finished difference Result 720141 states and 1040489 transitions. [2024-11-24 00:44:24,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:44:24,274 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 30.272727272727273) internal successors, (333), 10 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 186 [2024-11-24 00:44:24,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:44:24,926 INFO L225 Difference]: With dead ends: 720141 [2024-11-24 00:44:24,926 INFO L226 Difference]: Without dead ends: 491211 [2024-11-24 00:44:25,055 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 381 GetRequests, 362 SyntacticMatches, 5 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2024-11-24 00:44:25,055 INFO L435 NwaCegarLoop]: 164 mSDtfsCounter, 1287 mSDsluCounter, 619 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1287 SdHoareTripleChecker+Valid, 783 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:44:25,056 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1287 Valid, 783 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 511 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:44:25,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491211 states. [2024-11-24 00:44:31,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491211 to 479369. [2024-11-24 00:44:31,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479369 states, 479368 states have (on average 1.4389425243236929) internal successors, (689783), 479368 states have internal predecessors, (689783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:44:32,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479369 states to 479369 states and 689783 transitions. [2024-11-24 00:44:32,726 INFO L78 Accepts]: Start accepts. Automaton has 479369 states and 689783 transitions. Word has length 186 [2024-11-24 00:44:32,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:44:32,727 INFO L471 AbstractCegarLoop]: Abstraction has 479369 states and 689783 transitions. [2024-11-24 00:44:32,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 30.272727272727273) internal successors, (333), 10 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:44:32,729 INFO L276 IsEmpty]: Start isEmpty. Operand 479369 states and 689783 transitions. [2024-11-24 00:44:32,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-11-24 00:44:32,734 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:44:32,734 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:44:32,752 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2cbd194-fe6c-46ac-bcab-a108d280e6d1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 00:44:32,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2cbd194-fe6c-46ac-bcab-a108d280e6d1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2024-11-24 00:44:32,935 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:44:32,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:44:32,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1287016919, now seen corresponding path program 1 times [2024-11-24 00:44:32,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:44:32,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946810615] [2024-11-24 00:44:32,936 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:44:32,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:44:32,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:44:33,909 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:44:33,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:44:33,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946810615] [2024-11-24 00:44:33,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946810615] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:44:33,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:44:33,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:44:33,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572515991] [2024-11-24 00:44:33,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:44:33,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:44:33,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:44:33,910 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:44:33,910 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:44:33,910 INFO L87 Difference]: Start difference. First operand 479369 states and 689783 transitions. Second operand has 7 states, 7 states have (on average 26.571428571428573) internal successors, (186), 6 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:44:40,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:44:40,455 INFO L93 Difference]: Finished difference Result 1724237 states and 2485689 transitions. [2024-11-24 00:44:40,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:44:40,455 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.571428571428573) internal successors, (186), 6 states have internal predecessors, (186), 0 states have call successors, (0), 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 186 [2024-11-24 00:44:40,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:44:42,212 INFO L225 Difference]: With dead ends: 1724237 [2024-11-24 00:44:42,212 INFO L226 Difference]: Without dead ends: 1245067 [2024-11-24 00:44:42,468 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 [2024-11-24 00:44:42,469 INFO L435 NwaCegarLoop]: 161 mSDtfsCounter, 1473 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1473 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:44:42,469 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1473 Valid, 563 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:44:43,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1245067 states.