./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.1.ufo.BOUNDED-6.pals.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_962831db-7d87-4e7c-9330-863477b79046/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_962831db-7d87-4e7c-9330-863477b79046/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_962831db-7d87-4e7c-9330-863477b79046/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_962831db-7d87-4e7c-9330-863477b79046/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.1.ufo.BOUNDED-6.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_962831db-7d87-4e7c-9330-863477b79046/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_962831db-7d87-4e7c-9330-863477b79046/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 c6267d36e2eda753e26c9c989bedb16747ddf010783b33bee2d0cb2d2001d5ce --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:43:50,847 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:43:50,928 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_962831db-7d87-4e7c-9330-863477b79046/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 23:43:50,936 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:43:50,940 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:43:50,987 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:43:50,987 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:43:50,988 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:43:50,988 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 23:43:50,988 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 23:43:50,988 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 23:43:50,988 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 23:43:50,989 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:43:50,989 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:43:50,989 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:43:50,989 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:43:50,990 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 23:43:50,991 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 23:43:50,992 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 23:43:50,992 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 23:43:50,992 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:43:50,992 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 23:43:50,993 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 23:43:50,993 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 23:43:50,993 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 23:43:50,993 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 23:43:50,993 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:43:50,993 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:43:50,994 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 23:43:50,994 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:43:50,994 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:43:50,995 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:43:50,995 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:43:50,995 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:43:50,995 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:43:50,995 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:43:50,995 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:43:50,996 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:43:50,996 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:43:50,996 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 23:43:50,996 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 23:43:50,996 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 23:43:50,996 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 23:43:50,997 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 23:43:50,997 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 23:43:50,997 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 23:43:50,997 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 23:43:50,997 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 23:43:50,997 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_962831db-7d87-4e7c-9330-863477b79046/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 -> c6267d36e2eda753e26c9c989bedb16747ddf010783b33bee2d0cb2d2001d5ce [2024-11-23 23:43:51,318 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:43:51,330 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:43:51,332 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:43:51,334 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:43:51,334 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:43:51,336 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_962831db-7d87-4e7c-9330-863477b79046/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.1.ufo.BOUNDED-6.pals.c [2024-11-23 23:43:54,605 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_962831db-7d87-4e7c-9330-863477b79046/bin/uautomizer-verify-LYvppIcaGC/data/98325102c/d7874e5a3612426f9bff1743415da877/FLAG6b73c3a56 [2024-11-23 23:43:55,040 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:43:55,041 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_962831db-7d87-4e7c-9330-863477b79046/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.1.ufo.BOUNDED-6.pals.c [2024-11-23 23:43:55,075 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_962831db-7d87-4e7c-9330-863477b79046/bin/uautomizer-verify-LYvppIcaGC/data/98325102c/d7874e5a3612426f9bff1743415da877/FLAG6b73c3a56 [2024-11-23 23:43:55,103 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_962831db-7d87-4e7c-9330-863477b79046/bin/uautomizer-verify-LYvppIcaGC/data/98325102c/d7874e5a3612426f9bff1743415da877 [2024-11-23 23:43:55,108 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:43:55,112 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:43:55,114 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:43:55,114 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:43:55,125 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:43:55,126 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:43:55" (1/1) ... [2024-11-23 23:43:55,127 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4af9aa24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:43:55, skipping insertion in model container [2024-11-23 23:43:55,129 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:43:55" (1/1) ... [2024-11-23 23:43:55,175 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:43:55,527 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_962831db-7d87-4e7c-9330-863477b79046/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.1.ufo.BOUNDED-6.pals.c[12747,12760] [2024-11-23 23:43:55,531 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:43:55,544 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 23:43:55,610 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_962831db-7d87-4e7c-9330-863477b79046/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.1.ufo.BOUNDED-6.pals.c[12747,12760] [2024-11-23 23:43:55,611 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:43:55,632 INFO L204 MainTranslator]: Completed translation [2024-11-23 23:43:55,633 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:43:55 WrapperNode [2024-11-23 23:43:55,633 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 23:43:55,634 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 23:43:55,634 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 23:43:55,634 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 23:43:55,641 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:43:55" (1/1) ... [2024-11-23 23:43:55,651 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:43:55" (1/1) ... [2024-11-23 23:43:55,692 INFO L138 Inliner]: procedures = 21, calls = 13, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 481 [2024-11-23 23:43:55,693 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 23:43:55,693 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 23:43:55,693 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 23:43:55,694 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 23:43:55,703 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:43:55" (1/1) ... [2024-11-23 23:43:55,703 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:43:55" (1/1) ... [2024-11-23 23:43:55,706 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:43:55" (1/1) ... [2024-11-23 23:43:55,722 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]. [2024-11-23 23:43:55,722 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:43:55" (1/1) ... [2024-11-23 23:43:55,722 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:43:55" (1/1) ... [2024-11-23 23:43:55,732 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:43:55" (1/1) ... [2024-11-23 23:43:55,734 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:43:55" (1/1) ... [2024-11-23 23:43:55,742 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:43:55" (1/1) ... [2024-11-23 23:43:55,744 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:43:55" (1/1) ... [2024-11-23 23:43:55,747 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:43:55" (1/1) ... [2024-11-23 23:43:55,751 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 23:43:55,752 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 23:43:55,752 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 23:43:55,752 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 23:43:55,753 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:43:55" (1/1) ... [2024-11-23 23:43:55,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:43:55,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_962831db-7d87-4e7c-9330-863477b79046/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:43:55,797 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_962831db-7d87-4e7c-9330-863477b79046/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 23:43:55,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_962831db-7d87-4e7c-9330-863477b79046/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 23:43:55,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 23:43:55,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 23:43:55,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 23:43:55,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 23:43:55,970 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 23:43:55,972 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 23:43:56,819 INFO L? ?]: Removed 40 outVars from TransFormulas that were not future-live. [2024-11-23 23:43:56,820 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 23:43:56,840 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 23:43:56,843 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-23 23:43:56,843 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:43:56 BoogieIcfgContainer [2024-11-23 23:43:56,844 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 23:43:56,847 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 23:43:56,847 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 23:43:56,854 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 23:43:56,854 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:43:55" (1/3) ... [2024-11-23 23:43:56,855 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d9baf49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:43:56, skipping insertion in model container [2024-11-23 23:43:56,855 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:43:55" (2/3) ... [2024-11-23 23:43:56,855 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d9baf49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:43:56, skipping insertion in model container [2024-11-23 23:43:56,857 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:43:56" (3/3) ... [2024-11-23 23:43:56,858 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.3.1.ufo.BOUNDED-6.pals.c [2024-11-23 23:43:56,880 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 23:43:56,885 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_opt-floodmax.3.1.ufo.BOUNDED-6.pals.c that has 1 procedures, 126 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-23 23:43:56,965 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 23:43:56,980 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;@f4f2dc0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 23:43:56,981 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 23:43:56,989 INFO L276 IsEmpty]: Start isEmpty. Operand has 126 states, 124 states have (on average 1.7661290322580645) internal successors, (219), 125 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:43:56,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-23 23:43:56,996 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:43:56,997 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:43:56,998 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:43:57,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:43:57,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1219940025, now seen corresponding path program 1 times [2024-11-23 23:43:57,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:43:57,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990057009] [2024-11-23 23:43:57,012 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:43:57,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:43:57,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:43:57,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:43:57,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:43:57,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990057009] [2024-11-23 23:43:57,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990057009] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:43:57,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:43:57,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 23:43:57,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306214438] [2024-11-23 23:43:57,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:43:57,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 23:43:57,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:43:57,559 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 23:43:57,559 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 23:43:57,562 INFO L87 Difference]: Start difference. First operand has 126 states, 124 states have (on average 1.7661290322580645) internal successors, (219), 125 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:43:57,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:43:57,602 INFO L93 Difference]: Finished difference Result 199 states and 342 transitions. [2024-11-23 23:43:57,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 23:43:57,605 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 0 states have call successors, (0), 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 38 [2024-11-23 23:43:57,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:43:57,618 INFO L225 Difference]: With dead ends: 199 [2024-11-23 23:43:57,618 INFO L226 Difference]: Without dead ends: 122 [2024-11-23 23:43:57,622 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 23:43:57,627 INFO L435 NwaCegarLoop]: 216 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:43:57,628 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:43:57,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-11-23 23:43:57,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2024-11-23 23:43:57,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 121 states have (on average 1.7520661157024793) internal successors, (212), 121 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:43:57,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 212 transitions. [2024-11-23 23:43:57,683 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 212 transitions. Word has length 38 [2024-11-23 23:43:57,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:43:57,684 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 212 transitions. [2024-11-23 23:43:57,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:43:57,685 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 212 transitions. [2024-11-23 23:43:57,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-23 23:43:57,686 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:43:57,687 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] [2024-11-23 23:43:57,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 23:43:57,687 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:43:57,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:43:57,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1642641851, now seen corresponding path program 1 times [2024-11-23 23:43:57,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:43:57,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55881823] [2024-11-23 23:43:57,688 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:43:57,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:43:57,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:43:58,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:43:58,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:43:58,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55881823] [2024-11-23 23:43:58,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55881823] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:43:58,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:43:58,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:43:58,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323247555] [2024-11-23 23:43:58,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:43:58,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:43:58,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:43:58,212 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:43:58,212 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:43:58,213 INFO L87 Difference]: Start difference. First operand 122 states and 212 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:43:58,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:43:58,384 INFO L93 Difference]: Finished difference Result 262 states and 448 transitions. [2024-11-23 23:43:58,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:43:58,385 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 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 38 [2024-11-23 23:43:58,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:43:58,387 INFO L225 Difference]: With dead ends: 262 [2024-11-23 23:43:58,388 INFO L226 Difference]: Without dead ends: 190 [2024-11-23 23:43:58,388 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:43:58,390 INFO L435 NwaCegarLoop]: 208 mSDtfsCounter, 115 mSDsluCounter, 594 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 802 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:43:58,390 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 802 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:43:58,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2024-11-23 23:43:58,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 122. [2024-11-23 23:43:58,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 121 states have (on average 1.5537190082644627) internal successors, (188), 121 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:43:58,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 188 transitions. [2024-11-23 23:43:58,419 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 188 transitions. Word has length 38 [2024-11-23 23:43:58,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:43:58,420 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 188 transitions. [2024-11-23 23:43:58,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:43:58,421 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 188 transitions. [2024-11-23 23:43:58,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-23 23:43:58,424 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:43:58,425 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] [2024-11-23 23:43:58,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 23:43:58,425 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:43:58,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:43:58,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1007066918, now seen corresponding path program 1 times [2024-11-23 23:43:58,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:43:58,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757745813] [2024-11-23 23:43:58,427 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:43:58,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:43:58,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:43:58,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:43:58,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:43:58,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757745813] [2024-11-23 23:43:58,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757745813] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:43:58,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:43:58,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:43:58,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551319972] [2024-11-23 23:43:58,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:43:58,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:43:58,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:43:58,704 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:43:58,704 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:43:58,704 INFO L87 Difference]: Start difference. First operand 122 states and 188 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:43:58,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:43:58,790 INFO L93 Difference]: Finished difference Result 248 states and 402 transitions. [2024-11-23 23:43:58,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:43:58,791 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2024-11-23 23:43:58,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:43:58,794 INFO L225 Difference]: With dead ends: 248 [2024-11-23 23:43:58,796 INFO L226 Difference]: Without dead ends: 180 [2024-11-23 23:43:58,797 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 [2024-11-23 23:43:58,798 INFO L435 NwaCegarLoop]: 187 mSDtfsCounter, 89 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:43:58,798 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 338 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:43:58,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2024-11-23 23:43:58,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 178. [2024-11-23 23:43:58,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 177 states have (on average 1.5819209039548023) internal successors, (280), 177 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:43:58,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 280 transitions. [2024-11-23 23:43:58,820 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 280 transitions. Word has length 61 [2024-11-23 23:43:58,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:43:58,821 INFO L471 AbstractCegarLoop]: Abstraction has 178 states and 280 transitions. [2024-11-23 23:43:58,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:43:58,824 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 280 transitions. [2024-11-23 23:43:58,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-23 23:43:58,826 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:43:58,827 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] [2024-11-23 23:43:58,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 23:43:58,827 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:43:58,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:43:58,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1775526840, now seen corresponding path program 1 times [2024-11-23 23:43:58,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:43:58,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036113831] [2024-11-23 23:43:58,830 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:43:58,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:43:58,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:43:59,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:43:59,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:43:59,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036113831] [2024-11-23 23:43:59,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036113831] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:43:59,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:43:59,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:43:59,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525062259] [2024-11-23 23:43:59,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:43:59,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:43:59,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:43:59,049 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:43:59,051 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:43:59,052 INFO L87 Difference]: Start difference. First operand 178 states and 280 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:43:59,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:43:59,104 INFO L93 Difference]: Finished difference Result 410 states and 668 transitions. [2024-11-23 23:43:59,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:43:59,105 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2024-11-23 23:43:59,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:43:59,107 INFO L225 Difference]: With dead ends: 410 [2024-11-23 23:43:59,107 INFO L226 Difference]: Without dead ends: 286 [2024-11-23 23:43:59,108 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 [2024-11-23 23:43:59,111 INFO L435 NwaCegarLoop]: 186 mSDtfsCounter, 91 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 346 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 [2024-11-23 23:43:59,112 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 346 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:43:59,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2024-11-23 23:43:59,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 284. [2024-11-23 23:43:59,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 283 states have (on average 1.6148409893992932) internal successors, (457), 283 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:43:59,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 457 transitions. [2024-11-23 23:43:59,156 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 457 transitions. Word has length 63 [2024-11-23 23:43:59,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:43:59,156 INFO L471 AbstractCegarLoop]: Abstraction has 284 states and 457 transitions. [2024-11-23 23:43:59,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:43:59,157 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 457 transitions. [2024-11-23 23:43:59,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-23 23:43:59,159 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:43:59,162 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:43:59,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 23:43:59,163 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:43:59,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:43:59,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1295968874, now seen corresponding path program 1 times [2024-11-23 23:43:59,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:43:59,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213901275] [2024-11-23 23:43:59,164 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:43:59,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:43:59,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:43:59,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:43:59,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:43:59,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213901275] [2024-11-23 23:43:59,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213901275] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:43:59,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:43:59,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:43:59,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092491859] [2024-11-23 23:43:59,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:43:59,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:43:59,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:43:59,419 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:43:59,419 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:43:59,419 INFO L87 Difference]: Start difference. First operand 284 states and 457 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:43:59,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:43:59,469 INFO L93 Difference]: Finished difference Result 712 states and 1171 transitions. [2024-11-23 23:43:59,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:43:59,470 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-11-23 23:43:59,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:43:59,475 INFO L225 Difference]: With dead ends: 712 [2024-11-23 23:43:59,475 INFO L226 Difference]: Without dead ends: 482 [2024-11-23 23:43:59,476 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 [2024-11-23 23:43:59,477 INFO L435 NwaCegarLoop]: 186 mSDtfsCounter, 85 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 347 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 [2024-11-23 23:43:59,477 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 347 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:43:59,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2024-11-23 23:43:59,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 480. [2024-11-23 23:43:59,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 479 states have (on average 1.6304801670146138) internal successors, (781), 479 states have internal predecessors, (781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:43:59,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 781 transitions. [2024-11-23 23:43:59,520 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 781 transitions. Word has length 65 [2024-11-23 23:43:59,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:43:59,520 INFO L471 AbstractCegarLoop]: Abstraction has 480 states and 781 transitions. [2024-11-23 23:43:59,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:43:59,521 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 781 transitions. [2024-11-23 23:43:59,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-23 23:43:59,522 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:43:59,523 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:43:59,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 23:43:59,523 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:43:59,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:43:59,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1895201596, now seen corresponding path program 1 times [2024-11-23 23:43:59,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:43:59,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264619769] [2024-11-23 23:43:59,526 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:43:59,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:43:59,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:43:59,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:43:59,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:43:59,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264619769] [2024-11-23 23:43:59,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264619769] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:43:59,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:43:59,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:43:59,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572495717] [2024-11-23 23:43:59,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:43:59,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:43:59,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:43:59,849 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:43:59,849 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:43:59,849 INFO L87 Difference]: Start difference. First operand 480 states and 781 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:44:00,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:44:00,165 INFO L93 Difference]: Finished difference Result 2048 states and 3427 transitions. [2024-11-23 23:44:00,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 23:44:00,166 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-23 23:44:00,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:44:00,176 INFO L225 Difference]: With dead ends: 2048 [2024-11-23 23:44:00,176 INFO L226 Difference]: Without dead ends: 1622 [2024-11-23 23:44:00,177 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:44:00,178 INFO L435 NwaCegarLoop]: 181 mSDtfsCounter, 666 mSDsluCounter, 1082 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 666 SdHoareTripleChecker+Valid, 1263 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:44:00,179 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [666 Valid, 1263 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:44:00,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1622 states. [2024-11-23 23:44:00,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1622 to 852. [2024-11-23 23:44:00,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 852 states, 851 states have (on average 1.645123384253819) internal successors, (1400), 851 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:44:00,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 852 states to 852 states and 1400 transitions. [2024-11-23 23:44:00,291 INFO L78 Accepts]: Start accepts. Automaton has 852 states and 1400 transitions. Word has length 67 [2024-11-23 23:44:00,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:44:00,292 INFO L471 AbstractCegarLoop]: Abstraction has 852 states and 1400 transitions. [2024-11-23 23:44:00,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:44:00,293 INFO L276 IsEmpty]: Start isEmpty. Operand 852 states and 1400 transitions. [2024-11-23 23:44:00,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-23 23:44:00,294 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:44:00,295 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:44:00,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 23:44:00,295 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:44:00,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:44:00,296 INFO L85 PathProgramCache]: Analyzing trace with hash -544539997, now seen corresponding path program 1 times [2024-11-23 23:44:00,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:44:00,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948599113] [2024-11-23 23:44:00,297 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:44:00,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:44:00,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:44:00,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:44:00,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:44:00,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948599113] [2024-11-23 23:44:00,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948599113] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:44:00,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:44:00,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:44:00,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398985863] [2024-11-23 23:44:00,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:44:00,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:44:00,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:44:00,480 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:44:00,480 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:44:00,480 INFO L87 Difference]: Start difference. First operand 852 states and 1400 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:44:00,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:44:00,649 INFO L93 Difference]: Finished difference Result 2482 states and 4144 transitions. [2024-11-23 23:44:00,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:44:00,650 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-23 23:44:00,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:44:00,658 INFO L225 Difference]: With dead ends: 2482 [2024-11-23 23:44:00,658 INFO L226 Difference]: Without dead ends: 1684 [2024-11-23 23:44:00,660 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:44:00,662 INFO L435 NwaCegarLoop]: 189 mSDtfsCounter, 333 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 610 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:44:00,663 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [333 Valid, 610 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:44:00,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1684 states. [2024-11-23 23:44:00,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1684 to 1259. [2024-11-23 23:44:00,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1259 states, 1258 states have (on average 1.652623211446741) internal successors, (2079), 1258 states have internal predecessors, (2079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:44:00,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1259 states to 1259 states and 2079 transitions. [2024-11-23 23:44:00,745 INFO L78 Accepts]: Start accepts. Automaton has 1259 states and 2079 transitions. Word has length 68 [2024-11-23 23:44:00,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:44:00,746 INFO L471 AbstractCegarLoop]: Abstraction has 1259 states and 2079 transitions. [2024-11-23 23:44:00,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:44:00,746 INFO L276 IsEmpty]: Start isEmpty. Operand 1259 states and 2079 transitions. [2024-11-23 23:44:00,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-23 23:44:00,748 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:44:00,748 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:44:00,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 23:44:00,749 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:44:00,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:44:00,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1021592702, now seen corresponding path program 1 times [2024-11-23 23:44:00,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:44:00,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069195509] [2024-11-23 23:44:00,750 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:44:00,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:44:00,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:44:00,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:44:00,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:44:00,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069195509] [2024-11-23 23:44:00,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069195509] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:44:00,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:44:00,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:44:00,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988333436] [2024-11-23 23:44:00,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:44:00,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:44:00,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:44:00,875 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:44:00,875 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:44:00,875 INFO L87 Difference]: Start difference. First operand 1259 states and 2079 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:44:00,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:44:00,949 INFO L93 Difference]: Finished difference Result 2805 states and 4680 transitions. [2024-11-23 23:44:00,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:44:00,950 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-23 23:44:00,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:44:00,958 INFO L225 Difference]: With dead ends: 2805 [2024-11-23 23:44:00,959 INFO L226 Difference]: Without dead ends: 1932 [2024-11-23 23:44:00,960 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 [2024-11-23 23:44:00,961 INFO L435 NwaCegarLoop]: 265 mSDtfsCounter, 98 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:44:00,961 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 427 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:44:00,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1932 states. [2024-11-23 23:44:01,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1932 to 1930. [2024-11-23 23:44:01,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1930 states, 1929 states have (on average 1.6505961638154485) internal successors, (3184), 1929 states have internal predecessors, (3184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:44:01,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1930 states to 1930 states and 3184 transitions. [2024-11-23 23:44:01,043 INFO L78 Accepts]: Start accepts. Automaton has 1930 states and 3184 transitions. Word has length 69 [2024-11-23 23:44:01,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:44:01,043 INFO L471 AbstractCegarLoop]: Abstraction has 1930 states and 3184 transitions. [2024-11-23 23:44:01,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:44:01,043 INFO L276 IsEmpty]: Start isEmpty. Operand 1930 states and 3184 transitions. [2024-11-23 23:44:01,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-23 23:44:01,045 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:44:01,045 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:44:01,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 23:44:01,045 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:44:01,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:44:01,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1794307870, now seen corresponding path program 1 times [2024-11-23 23:44:01,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:44:01,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268933221] [2024-11-23 23:44:01,047 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:44:01,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:44:01,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:44:01,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:44:01,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:44:01,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268933221] [2024-11-23 23:44:01,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268933221] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:44:01,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:44:01,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:44:01,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952423865] [2024-11-23 23:44:01,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:44:01,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:44:01,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:44:01,225 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:44:01,226 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:44:01,226 INFO L87 Difference]: Start difference. First operand 1930 states and 3184 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:44:01,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:44:01,335 INFO L93 Difference]: Finished difference Result 3814 states and 6303 transitions. [2024-11-23 23:44:01,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:44:01,335 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-23 23:44:01,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:44:01,348 INFO L225 Difference]: With dead ends: 3814 [2024-11-23 23:44:01,348 INFO L226 Difference]: Without dead ends: 2736 [2024-11-23 23:44:01,350 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 [2024-11-23 23:44:01,351 INFO L435 NwaCegarLoop]: 262 mSDtfsCounter, 92 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:44:01,351 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 425 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:44:01,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2736 states. [2024-11-23 23:44:01,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2736 to 2734. [2024-11-23 23:44:01,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2734 states, 2733 states have (on average 1.6384924990852543) internal successors, (4478), 2733 states have internal predecessors, (4478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:44:01,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2734 states to 2734 states and 4478 transitions. [2024-11-23 23:44:01,455 INFO L78 Accepts]: Start accepts. Automaton has 2734 states and 4478 transitions. Word has length 69 [2024-11-23 23:44:01,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:44:01,455 INFO L471 AbstractCegarLoop]: Abstraction has 2734 states and 4478 transitions. [2024-11-23 23:44:01,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:44:01,455 INFO L276 IsEmpty]: Start isEmpty. Operand 2734 states and 4478 transitions. [2024-11-23 23:44:01,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-23 23:44:01,456 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:44:01,456 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:44:01,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-23 23:44:01,457 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:44:01,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:44:01,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1454699045, now seen corresponding path program 1 times [2024-11-23 23:44:01,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:44:01,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966027519] [2024-11-23 23:44:01,457 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:44:01,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:44:01,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:44:01,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:44:01,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:44:01,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966027519] [2024-11-23 23:44:01,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966027519] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:44:01,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:44:01,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:44:01,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36670182] [2024-11-23 23:44:01,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:44:01,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:44:01,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:44:01,627 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:44:01,627 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:44:01,627 INFO L87 Difference]: Start difference. First operand 2734 states and 4478 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:44:01,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:44:01,858 INFO L93 Difference]: Finished difference Result 8655 states and 14231 transitions. [2024-11-23 23:44:01,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:44:01,859 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-23 23:44:01,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:44:01,886 INFO L225 Difference]: With dead ends: 8655 [2024-11-23 23:44:01,887 INFO L226 Difference]: Without dead ends: 5986 [2024-11-23 23:44:01,891 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:44:01,892 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 332 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:44:01,892 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [332 Valid, 600 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:44:01,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5986 states. [2024-11-23 23:44:02,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5986 to 4341. [2024-11-23 23:44:02,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4341 states, 4340 states have (on average 1.6297235023041474) internal successors, (7073), 4340 states have internal predecessors, (7073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:44:02,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4341 states to 4341 states and 7073 transitions. [2024-11-23 23:44:02,093 INFO L78 Accepts]: Start accepts. Automaton has 4341 states and 7073 transitions. Word has length 69 [2024-11-23 23:44:02,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:44:02,093 INFO L471 AbstractCegarLoop]: Abstraction has 4341 states and 7073 transitions. [2024-11-23 23:44:02,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:44:02,094 INFO L276 IsEmpty]: Start isEmpty. Operand 4341 states and 7073 transitions. [2024-11-23 23:44:02,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-23 23:44:02,098 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:44:02,099 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:44:02,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-23 23:44:02,101 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:44:02,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:44:02,102 INFO L85 PathProgramCache]: Analyzing trace with hash -740565438, now seen corresponding path program 1 times [2024-11-23 23:44:02,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:44:02,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455400718] [2024-11-23 23:44:02,102 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:44:02,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:44:02,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:44:02,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:44:02,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:44:02,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455400718] [2024-11-23 23:44:02,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455400718] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:44:02,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:44:02,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:44:02,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301605221] [2024-11-23 23:44:02,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:44:02,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:44:02,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:44:02,211 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:44:02,211 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:44:02,211 INFO L87 Difference]: Start difference. First operand 4341 states and 7073 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:44:02,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:44:02,372 INFO L93 Difference]: Finished difference Result 8693 states and 14158 transitions. [2024-11-23 23:44:02,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:44:02,373 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-23 23:44:02,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:44:02,400 INFO L225 Difference]: With dead ends: 8693 [2024-11-23 23:44:02,401 INFO L226 Difference]: Without dead ends: 6171 [2024-11-23 23:44:02,406 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 [2024-11-23 23:44:02,406 INFO L435 NwaCegarLoop]: 250 mSDtfsCounter, 86 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:44:02,407 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 414 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:44:02,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6171 states. [2024-11-23 23:44:02,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6171 to 6169. [2024-11-23 23:44:02,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6169 states, 6168 states have (on average 1.6123540856031129) internal successors, (9945), 6168 states have internal predecessors, (9945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:44:02,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6169 states to 6169 states and 9945 transitions. [2024-11-23 23:44:02,697 INFO L78 Accepts]: Start accepts. Automaton has 6169 states and 9945 transitions. Word has length 69 [2024-11-23 23:44:02,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:44:02,698 INFO L471 AbstractCegarLoop]: Abstraction has 6169 states and 9945 transitions. [2024-11-23 23:44:02,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:44:02,698 INFO L276 IsEmpty]: Start isEmpty. Operand 6169 states and 9945 transitions. [2024-11-23 23:44:02,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-23 23:44:02,699 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:44:02,699 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] [2024-11-23 23:44:02,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-23 23:44:02,699 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:44:02,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:44:02,700 INFO L85 PathProgramCache]: Analyzing trace with hash 564145882, now seen corresponding path program 1 times [2024-11-23 23:44:02,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:44:02,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249936328] [2024-11-23 23:44:02,700 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:44:02,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:44:02,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:44:02,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:44:02,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:44:02,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249936328] [2024-11-23 23:44:02,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249936328] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:44:02,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:44:02,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:44:02,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422979856] [2024-11-23 23:44:02,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:44:02,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:44:02,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:44:02,842 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:44:02,842 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:44:02,842 INFO L87 Difference]: Start difference. First operand 6169 states and 9945 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:44:03,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:44:03,229 INFO L93 Difference]: Finished difference Result 19449 states and 31421 transitions. [2024-11-23 23:44:03,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:44:03,230 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2024-11-23 23:44:03,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:44:03,273 INFO L225 Difference]: With dead ends: 19449 [2024-11-23 23:44:03,273 INFO L226 Difference]: Without dead ends: 13353 [2024-11-23 23:44:03,281 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:44:03,282 INFO L435 NwaCegarLoop]: 176 mSDtfsCounter, 330 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:44:03,282 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 587 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:44:03,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13353 states. [2024-11-23 23:44:03,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13353 to 9718. [2024-11-23 23:44:03,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9718 states, 9717 states have (on average 1.6006998044663991) internal successors, (15554), 9717 states have internal predecessors, (15554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:44:03,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9718 states to 9718 states and 15554 transitions. [2024-11-23 23:44:03,767 INFO L78 Accepts]: Start accepts. Automaton has 9718 states and 15554 transitions. Word has length 70 [2024-11-23 23:44:03,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:44:03,767 INFO L471 AbstractCegarLoop]: Abstraction has 9718 states and 15554 transitions. [2024-11-23 23:44:03,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:44:03,768 INFO L276 IsEmpty]: Start isEmpty. Operand 9718 states and 15554 transitions. [2024-11-23 23:44:03,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-23 23:44:03,768 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:44:03,768 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:44:03,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-23 23:44:03,768 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:44:03,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:44:03,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1149208878, now seen corresponding path program 1 times [2024-11-23 23:44:03,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:44:03,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814739258] [2024-11-23 23:44:03,769 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:44:03,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:44:03,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:44:04,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:44:04,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:44:04,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814739258] [2024-11-23 23:44:04,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814739258] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:44:04,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:44:04,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:44:04,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144869769] [2024-11-23 23:44:04,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:44:04,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:44:04,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:44:04,051 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:44:04,051 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:44:04,051 INFO L87 Difference]: Start difference. First operand 9718 states and 15554 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:44:04,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:44:04,329 INFO L93 Difference]: Finished difference Result 19365 states and 31010 transitions. [2024-11-23 23:44:04,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:44:04,330 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2024-11-23 23:44:04,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:44:04,354 INFO L225 Difference]: With dead ends: 19365 [2024-11-23 23:44:04,355 INFO L226 Difference]: Without dead ends: 9720 [2024-11-23 23:44:04,365 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:44:04,367 INFO L435 NwaCegarLoop]: 182 mSDtfsCounter, 171 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:44:04,367 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 492 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:44:04,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9720 states. [2024-11-23 23:44:04,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9720 to 9718. [2024-11-23 23:44:04,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9718 states, 9717 states have (on average 1.5878357517752393) internal successors, (15429), 9717 states have internal predecessors, (15429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:44:04,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9718 states to 9718 states and 15429 transitions. [2024-11-23 23:44:04,715 INFO L78 Accepts]: Start accepts. Automaton has 9718 states and 15429 transitions. Word has length 72 [2024-11-23 23:44:04,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:44:04,716 INFO L471 AbstractCegarLoop]: Abstraction has 9718 states and 15429 transitions. [2024-11-23 23:44:04,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:44:04,716 INFO L276 IsEmpty]: Start isEmpty. Operand 9718 states and 15429 transitions. [2024-11-23 23:44:04,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-23 23:44:04,717 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:44:04,717 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:44:04,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-23 23:44:04,717 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:44:04,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:44:04,717 INFO L85 PathProgramCache]: Analyzing trace with hash 805553790, now seen corresponding path program 1 times [2024-11-23 23:44:04,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:44:04,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974694251] [2024-11-23 23:44:04,718 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:44:04,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:44:04,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:44:04,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:44:04,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:44:04,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974694251] [2024-11-23 23:44:04,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974694251] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:44:04,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:44:04,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:44:04,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646492039] [2024-11-23 23:44:04,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:44:04,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:44:04,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:44:04,960 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:44:04,960 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:44:04,960 INFO L87 Difference]: Start difference. First operand 9718 states and 15429 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:44:05,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:44:05,363 INFO L93 Difference]: Finished difference Result 27849 states and 44354 transitions. [2024-11-23 23:44:05,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:44:05,364 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2024-11-23 23:44:05,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:44:05,410 INFO L225 Difference]: With dead ends: 27849 [2024-11-23 23:44:05,410 INFO L226 Difference]: Without dead ends: 18204 [2024-11-23 23:44:05,423 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:44:05,423 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 84 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:44:05,423 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 659 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:44:05,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18204 states. [2024-11-23 23:44:06,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18204 to 18202. [2024-11-23 23:44:06,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18202 states, 18201 states have (on average 1.5732102631723532) internal successors, (28634), 18201 states have internal predecessors, (28634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:44:06,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18202 states to 18202 states and 28634 transitions. [2024-11-23 23:44:06,145 INFO L78 Accepts]: Start accepts. Automaton has 18202 states and 28634 transitions. Word has length 75 [2024-11-23 23:44:06,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:44:06,146 INFO L471 AbstractCegarLoop]: Abstraction has 18202 states and 28634 transitions. [2024-11-23 23:44:06,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:44:06,147 INFO L276 IsEmpty]: Start isEmpty. Operand 18202 states and 28634 transitions. [2024-11-23 23:44:06,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-23 23:44:06,148 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:44:06,148 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:44:06,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-23 23:44:06,148 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:44:06,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:44:06,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1226211973, now seen corresponding path program 1 times [2024-11-23 23:44:06,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:44:06,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904087851] [2024-11-23 23:44:06,149 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:44:06,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:44:06,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:44:06,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:44:06,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:44:06,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904087851] [2024-11-23 23:44:06,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904087851] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:44:06,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:44:06,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:44:06,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595764135] [2024-11-23 23:44:06,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:44:06,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:44:06,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:44:06,523 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:44:06,523 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:44:06,523 INFO L87 Difference]: Start difference. First operand 18202 states and 28634 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:44:06,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:44:06,919 INFO L93 Difference]: Finished difference Result 19290 states and 30083 transitions. [2024-11-23 23:44:06,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:44:06,920 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2024-11-23 23:44:06,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:44:06,976 INFO L225 Difference]: With dead ends: 19290 [2024-11-23 23:44:06,976 INFO L226 Difference]: Without dead ends: 19288 [2024-11-23 23:44:06,983 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:44:06,984 INFO L435 NwaCegarLoop]: 185 mSDtfsCounter, 0 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 726 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 [2024-11-23 23:44:06,984 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 726 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:44:07,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19288 states. [2024-11-23 23:44:07,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19288 to 19288. [2024-11-23 23:44:07,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19288 states, 19287 states have (on average 1.5404676725255353) internal successors, (29711), 19287 states have internal predecessors, (29711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:44:07,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19288 states to 19288 states and 29711 transitions. [2024-11-23 23:44:07,754 INFO L78 Accepts]: Start accepts. Automaton has 19288 states and 29711 transitions. Word has length 76 [2024-11-23 23:44:07,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:44:07,754 INFO L471 AbstractCegarLoop]: Abstraction has 19288 states and 29711 transitions. [2024-11-23 23:44:07,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:44:07,754 INFO L276 IsEmpty]: Start isEmpty. Operand 19288 states and 29711 transitions. [2024-11-23 23:44:07,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-23 23:44:07,758 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:44:07,759 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:44:07,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-23 23:44:07,759 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:44:07,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:44:07,759 INFO L85 PathProgramCache]: Analyzing trace with hash 66647756, now seen corresponding path program 1 times [2024-11-23 23:44:07,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:44:07,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219099340] [2024-11-23 23:44:07,760 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:44:07,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:44:07,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:44:08,074 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-23 23:44:08,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:44:08,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219099340] [2024-11-23 23:44:08,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219099340] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:44:08,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:44:08,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:44:08,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240473041] [2024-11-23 23:44:08,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:44:08,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:44:08,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:44:08,079 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:44:08,079 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:44:08,079 INFO L87 Difference]: Start difference. First operand 19288 states and 29711 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:44:08,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:44:08,837 INFO L93 Difference]: Finished difference Result 47608 states and 73599 transitions. [2024-11-23 23:44:08,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:44:08,837 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2024-11-23 23:44:08,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:44:08,946 INFO L225 Difference]: With dead ends: 47608 [2024-11-23 23:44:08,946 INFO L226 Difference]: Without dead ends: 38166 [2024-11-23 23:44:08,969 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:44:08,970 INFO L435 NwaCegarLoop]: 284 mSDtfsCounter, 412 mSDsluCounter, 584 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 868 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:44:08,971 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [412 Valid, 868 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:44:09,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38166 states. [2024-11-23 23:44:09,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38166 to 29736. [2024-11-23 23:44:09,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29736 states, 29735 states have (on average 1.537413822095174) internal successors, (45715), 29735 states have internal predecessors, (45715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:44:09,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29736 states to 29736 states and 45715 transitions. [2024-11-23 23:44:09,976 INFO L78 Accepts]: Start accepts. Automaton has 29736 states and 45715 transitions. Word has length 103 [2024-11-23 23:44:09,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:44:09,977 INFO L471 AbstractCegarLoop]: Abstraction has 29736 states and 45715 transitions. [2024-11-23 23:44:09,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:44:09,977 INFO L276 IsEmpty]: Start isEmpty. Operand 29736 states and 45715 transitions. [2024-11-23 23:44:09,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-23 23:44:09,980 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:44:09,980 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:44:09,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-23 23:44:09,980 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:44:09,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:44:09,982 INFO L85 PathProgramCache]: Analyzing trace with hash -706067412, now seen corresponding path program 1 times [2024-11-23 23:44:09,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:44:09,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872244167] [2024-11-23 23:44:09,983 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:44:09,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:44:10,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:44:10,242 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-23 23:44:10,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:44:10,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872244167] [2024-11-23 23:44:10,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872244167] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:44:10,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:44:10,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:44:10,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103112369] [2024-11-23 23:44:10,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:44:10,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:44:10,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:44:10,244 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:44:10,244 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:44:10,244 INFO L87 Difference]: Start difference. First operand 29736 states and 45715 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:44:11,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:44:11,079 INFO L93 Difference]: Finished difference Result 53428 states and 82597 transitions. [2024-11-23 23:44:11,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:44:11,080 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 0 states have call successors, (0), 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 103 [2024-11-23 23:44:11,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:44:11,201 INFO L225 Difference]: With dead ends: 53428 [2024-11-23 23:44:11,201 INFO L226 Difference]: Without dead ends: 44246 [2024-11-23 23:44:11,218 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:44:11,219 INFO L435 NwaCegarLoop]: 289 mSDtfsCounter, 419 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 794 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:44:11,219 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [419 Valid, 794 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:44:11,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44246 states. [2024-11-23 23:44:12,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44246 to 40432. [2024-11-23 23:44:12,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40432 states, 40431 states have (on average 1.5387944893769632) internal successors, (62215), 40431 states have internal predecessors, (62215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:44:12,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40432 states to 40432 states and 62215 transitions. [2024-11-23 23:44:12,436 INFO L78 Accepts]: Start accepts. Automaton has 40432 states and 62215 transitions. Word has length 103 [2024-11-23 23:44:12,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:44:12,436 INFO L471 AbstractCegarLoop]: Abstraction has 40432 states and 62215 transitions. [2024-11-23 23:44:12,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:44:12,437 INFO L276 IsEmpty]: Start isEmpty. Operand 40432 states and 62215 transitions. [2024-11-23 23:44:12,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-23 23:44:12,440 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:44:12,440 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:44:12,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-23 23:44:12,440 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:44:12,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:44:12,441 INFO L85 PathProgramCache]: Analyzing trace with hash 347675020, now seen corresponding path program 1 times [2024-11-23 23:44:12,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:44:12,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500086589] [2024-11-23 23:44:12,441 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:44:12,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:44:12,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:44:12,669 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-23 23:44:12,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:44:12,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500086589] [2024-11-23 23:44:12,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500086589] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:44:12,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:44:12,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:44:12,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250121064] [2024-11-23 23:44:12,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:44:12,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:44:12,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:44:12,671 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:44:12,672 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:44:12,672 INFO L87 Difference]: Start difference. First operand 40432 states and 62215 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:44:13,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:44:13,528 INFO L93 Difference]: Finished difference Result 57132 states and 88317 transitions. [2024-11-23 23:44:13,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:44:13,528 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 0 states have call successors, (0), 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 103 [2024-11-23 23:44:13,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:44:13,658 INFO L225 Difference]: With dead ends: 57132 [2024-11-23 23:44:13,658 INFO L226 Difference]: Without dead ends: 47950 [2024-11-23 23:44:13,676 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:44:13,677 INFO L435 NwaCegarLoop]: 292 mSDtfsCounter, 424 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 815 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:44:13,677 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [424 Valid, 815 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:44:13,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47950 states. [2024-11-23 23:44:14,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47950 to 46408. [2024-11-23 23:44:14,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46408 states, 46407 states have (on average 1.5406080979162626) internal successors, (71495), 46407 states have internal predecessors, (71495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:44:14,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46408 states to 46408 states and 71495 transitions. [2024-11-23 23:44:14,963 INFO L78 Accepts]: Start accepts. Automaton has 46408 states and 71495 transitions. Word has length 103 [2024-11-23 23:44:14,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:44:14,965 INFO L471 AbstractCegarLoop]: Abstraction has 46408 states and 71495 transitions. [2024-11-23 23:44:14,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:44:14,965 INFO L276 IsEmpty]: Start isEmpty. Operand 46408 states and 71495 transitions. [2024-11-23 23:44:14,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-23 23:44:14,968 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:44:14,969 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:44:14,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-23 23:44:14,969 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:44:14,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:44:14,970 INFO L85 PathProgramCache]: Analyzing trace with hash 143247771, now seen corresponding path program 1 times [2024-11-23 23:44:14,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:44:14,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045548593] [2024-11-23 23:44:14,970 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:44:14,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:44:15,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:44:15,137 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-23 23:44:15,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:44:15,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045548593] [2024-11-23 23:44:15,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045548593] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:44:15,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:44:15,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:44:15,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788483441] [2024-11-23 23:44:15,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:44:15,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:44:15,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:44:15,139 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:44:15,139 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:44:15,139 INFO L87 Difference]: Start difference. First operand 46408 states and 71495 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:44:16,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:44:16,164 INFO L93 Difference]: Finished difference Result 75911 states and 117584 transitions. [2024-11-23 23:44:16,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:44:16,165 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2024-11-23 23:44:16,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:44:16,318 INFO L225 Difference]: With dead ends: 75911 [2024-11-23 23:44:16,318 INFO L226 Difference]: Without dead ends: 60389 [2024-11-23 23:44:16,343 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 [2024-11-23 23:44:16,343 INFO L435 NwaCegarLoop]: 284 mSDtfsCounter, 172 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:44:16,344 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 625 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:44:16,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60389 states. [2024-11-23 23:44:17,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60389 to 58849. [2024-11-23 23:44:17,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58849 states, 58848 states have (on average 1.5406640837411636) internal successors, (90665), 58848 states have internal predecessors, (90665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:44:17,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58849 states to 58849 states and 90665 transitions. [2024-11-23 23:44:17,975 INFO L78 Accepts]: Start accepts. Automaton has 58849 states and 90665 transitions. Word has length 104 [2024-11-23 23:44:17,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:44:17,976 INFO L471 AbstractCegarLoop]: Abstraction has 58849 states and 90665 transitions. [2024-11-23 23:44:17,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:44:17,976 INFO L276 IsEmpty]: Start isEmpty. Operand 58849 states and 90665 transitions. [2024-11-23 23:44:17,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-23 23:44:17,980 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:44:17,980 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:44:17,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-23 23:44:17,981 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:44:17,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:44:17,981 INFO L85 PathProgramCache]: Analyzing trace with hash 565949597, now seen corresponding path program 1 times [2024-11-23 23:44:17,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:44:17,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144803780] [2024-11-23 23:44:17,982 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:44:17,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:44:18,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:44:18,136 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-23 23:44:18,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:44:18,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144803780] [2024-11-23 23:44:18,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144803780] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:44:18,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:44:18,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:44:18,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067169767] [2024-11-23 23:44:18,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:44:18,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:44:18,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:44:18,142 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:44:18,142 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:44:18,142 INFO L87 Difference]: Start difference. First operand 58849 states and 90665 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:44:20,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:44:20,044 INFO L93 Difference]: Finished difference Result 127565 states and 197181 transitions. [2024-11-23 23:44:20,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:44:20,045 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2024-11-23 23:44:20,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:44:20,409 INFO L225 Difference]: With dead ends: 127565 [2024-11-23 23:44:20,409 INFO L226 Difference]: Without dead ends: 99707 [2024-11-23 23:44:20,432 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 [2024-11-23 23:44:20,436 INFO L435 NwaCegarLoop]: 187 mSDtfsCounter, 74 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:44:20,437 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 343 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:44:20,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99707 states. [2024-11-23 23:44:22,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99707 to 99429. [2024-11-23 23:44:22,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99429 states, 99428 states have (on average 1.539888160276783) internal successors, (153108), 99428 states have internal predecessors, (153108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:44:22,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99429 states to 99429 states and 153108 transitions. [2024-11-23 23:44:22,771 INFO L78 Accepts]: Start accepts. Automaton has 99429 states and 153108 transitions. Word has length 104 [2024-11-23 23:44:22,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:44:22,771 INFO L471 AbstractCegarLoop]: Abstraction has 99429 states and 153108 transitions. [2024-11-23 23:44:22,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:44:22,772 INFO L276 IsEmpty]: Start isEmpty. Operand 99429 states and 153108 transitions. [2024-11-23 23:44:22,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-23 23:44:22,775 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:44:22,775 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:44:22,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-23 23:44:22,775 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:44:22,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:44:22,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1264436370, now seen corresponding path program 1 times [2024-11-23 23:44:22,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:44:22,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985137723] [2024-11-23 23:44:22,776 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:44:22,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:44:22,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:44:22,882 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:44:22,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:44:22,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985137723] [2024-11-23 23:44:22,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985137723] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:44:22,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:44:22,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:44:22,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805941021] [2024-11-23 23:44:22,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:44:22,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:44:22,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:44:22,885 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:44:22,885 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:44:22,885 INFO L87 Difference]: Start difference. First operand 99429 states and 153108 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:44:25,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:44:25,491 INFO L93 Difference]: Finished difference Result 295993 states and 454787 transitions. [2024-11-23 23:44:25,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:44:25,492 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2024-11-23 23:44:25,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:44:25,827 INFO L225 Difference]: With dead ends: 295993 [2024-11-23 23:44:25,827 INFO L226 Difference]: Without dead ends: 196637 [2024-11-23 23:44:25,900 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 [2024-11-23 23:44:25,901 INFO L435 NwaCegarLoop]: 265 mSDtfsCounter, 138 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:44:25,902 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 445 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:44:26,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196637 states. [2024-11-23 23:44:29,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196637 to 196635. [2024-11-23 23:44:29,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196635 states, 196634 states have (on average 1.5234852568731756) internal successors, (299569), 196634 states have internal predecessors, (299569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:44:30,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196635 states to 196635 states and 299569 transitions. [2024-11-23 23:44:30,626 INFO L78 Accepts]: Start accepts. Automaton has 196635 states and 299569 transitions. Word has length 105 [2024-11-23 23:44:30,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:44:30,627 INFO L471 AbstractCegarLoop]: Abstraction has 196635 states and 299569 transitions. [2024-11-23 23:44:30,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:44:30,627 INFO L276 IsEmpty]: Start isEmpty. Operand 196635 states and 299569 transitions. [2024-11-23 23:44:30,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-23 23:44:30,633 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:44:30,633 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:44:30,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-23 23:44:30,633 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:44:30,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:44:30,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1947723542, now seen corresponding path program 1 times [2024-11-23 23:44:30,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:44:30,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054250617] [2024-11-23 23:44:30,634 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:44:30,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:44:30,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:44:30,854 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:44:30,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:44:30,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054250617] [2024-11-23 23:44:30,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054250617] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:44:30,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:44:30,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:44:30,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873382518] [2024-11-23 23:44:30,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:44:30,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:44:30,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:44:30,856 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:44:30,857 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:44:30,857 INFO L87 Difference]: Start difference. First operand 196635 states and 299569 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:44:33,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:44:33,861 INFO L93 Difference]: Finished difference Result 365121 states and 556961 transitions. [2024-11-23 23:44:33,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:44:33,862 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2024-11-23 23:44:33,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:44:34,096 INFO L225 Difference]: With dead ends: 365121 [2024-11-23 23:44:34,096 INFO L226 Difference]: Without dead ends: 168619 [2024-11-23 23:44:34,160 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 [2024-11-23 23:44:34,162 INFO L435 NwaCegarLoop]: 231 mSDtfsCounter, 70 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:44:34,162 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 399 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:44:34,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168619 states. [2024-11-23 23:44:37,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168619 to 168270. [2024-11-23 23:44:37,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168270 states, 168269 states have (on average 1.5167975087508692) internal successors, (255230), 168269 states have internal predecessors, (255230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:44:37,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168270 states to 168270 states and 255230 transitions. [2024-11-23 23:44:37,628 INFO L78 Accepts]: Start accepts. Automaton has 168270 states and 255230 transitions. Word has length 105 [2024-11-23 23:44:37,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:44:37,629 INFO L471 AbstractCegarLoop]: Abstraction has 168270 states and 255230 transitions. [2024-11-23 23:44:37,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:44:37,629 INFO L276 IsEmpty]: Start isEmpty. Operand 168270 states and 255230 transitions. [2024-11-23 23:44:37,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-23 23:44:37,631 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:44:37,632 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:44:37,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-23 23:44:37,632 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:44:37,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:44:37,633 INFO L85 PathProgramCache]: Analyzing trace with hash -893981110, now seen corresponding path program 1 times [2024-11-23 23:44:37,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:44:37,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431333838] [2024-11-23 23:44:37,633 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:44:37,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:44:37,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:44:37,766 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:44:37,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:44:37,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431333838] [2024-11-23 23:44:37,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431333838] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:44:37,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:44:37,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:44:37,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140724409] [2024-11-23 23:44:37,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:44:37,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:44:37,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:44:37,768 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:44:37,768 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:44:37,768 INFO L87 Difference]: Start difference. First operand 168270 states and 255230 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:44:39,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:44:39,088 INFO L93 Difference]: Finished difference Result 239678 states and 363748 transitions. [2024-11-23 23:44:39,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:44:39,088 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2024-11-23 23:44:39,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:44:39,196 INFO L225 Difference]: With dead ends: 239678 [2024-11-23 23:44:39,196 INFO L226 Difference]: Without dead ends: 71543 [2024-11-23 23:44:39,254 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 [2024-11-23 23:44:39,255 INFO L435 NwaCegarLoop]: 218 mSDtfsCounter, 57 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:44:39,255 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 374 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:44:39,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71543 states. [2024-11-23 23:44:40,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71543 to 71434. [2024-11-23 23:44:40,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71434 states, 71433 states have (on average 1.5088544510240365) internal successors, (107782), 71433 states have internal predecessors, (107782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:44:40,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71434 states to 71434 states and 107782 transitions. [2024-11-23 23:44:40,995 INFO L78 Accepts]: Start accepts. Automaton has 71434 states and 107782 transitions. Word has length 105 [2024-11-23 23:44:40,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:44:40,995 INFO L471 AbstractCegarLoop]: Abstraction has 71434 states and 107782 transitions. [2024-11-23 23:44:40,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:44:40,995 INFO L276 IsEmpty]: Start isEmpty. Operand 71434 states and 107782 transitions. [2024-11-23 23:44:40,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-23 23:44:40,998 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:44:40,999 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:44:40,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-23 23:44:40,999 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:44:40,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:44:41,000 INFO L85 PathProgramCache]: Analyzing trace with hash -443915350, now seen corresponding path program 1 times [2024-11-23 23:44:41,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:44:41,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503469648] [2024-11-23 23:44:41,000 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:44:41,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:44:41,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:44:41,179 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:44:41,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:44:41,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503469648] [2024-11-23 23:44:41,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503469648] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:44:41,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:44:41,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:44:41,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67274576] [2024-11-23 23:44:41,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:44:41,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:44:41,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:44:41,181 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:44:41,181 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:44:41,181 INFO L87 Difference]: Start difference. First operand 71434 states and 107782 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:44:42,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:44:42,001 INFO L93 Difference]: Finished difference Result 104939 states and 158451 transitions. [2024-11-23 23:44:42,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:44:42,002 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2024-11-23 23:44:42,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:44:42,067 INFO L225 Difference]: With dead ends: 104939 [2024-11-23 23:44:42,067 INFO L226 Difference]: Without dead ends: 33640 [2024-11-23 23:44:42,105 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 [2024-11-23 23:44:42,106 INFO L435 NwaCegarLoop]: 205 mSDtfsCounter, 44 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:44:42,106 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 349 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:44:42,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33640 states. [2024-11-23 23:44:42,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33640 to 33624. [2024-11-23 23:44:42,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33624 states, 33623 states have (on average 1.5011747910656397) internal successors, (50474), 33623 states have internal predecessors, (50474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:44:42,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33624 states to 33624 states and 50474 transitions. [2024-11-23 23:44:42,965 INFO L78 Accepts]: Start accepts. Automaton has 33624 states and 50474 transitions. Word has length 105 [2024-11-23 23:44:42,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:44:42,965 INFO L471 AbstractCegarLoop]: Abstraction has 33624 states and 50474 transitions. [2024-11-23 23:44:42,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:44:42,965 INFO L276 IsEmpty]: Start isEmpty. Operand 33624 states and 50474 transitions. [2024-11-23 23:44:42,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-23 23:44:42,967 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:44:42,967 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] [2024-11-23 23:44:42,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-23 23:44:42,968 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:44:42,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:44:42,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1362389243, now seen corresponding path program 1 times [2024-11-23 23:44:42,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:44:42,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042023380] [2024-11-23 23:44:42,969 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:44:42,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:44:43,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:44:43,346 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-23 23:44:43,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:44:43,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042023380] [2024-11-23 23:44:43,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042023380] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:44:43,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:44:43,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:44:43,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521576152] [2024-11-23 23:44:43,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:44:43,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:44:43,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:44:43,348 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:44:43,348 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:44:43,348 INFO L87 Difference]: Start difference. First operand 33624 states and 50474 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)