./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/elevator_spec9_product29.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef023887-41f0-417d-8372-7986d26773ff/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef023887-41f0-417d-8372-7986d26773ff/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef023887-41f0-417d-8372-7986d26773ff/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef023887-41f0-417d-8372-7986d26773ff/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec9_product29.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef023887-41f0-417d-8372-7986d26773ff/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef023887-41f0-417d-8372-7986d26773ff/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bf5a3f22f9d7a0aaa2c9864b464fdc1b701547a697c01ddf6ee0cf69e3554ef9 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 11:35:45,072 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 11:35:45,126 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef023887-41f0-417d-8372-7986d26773ff/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 11:35:45,131 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 11:35:45,131 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 11:35:45,152 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 11:35:45,152 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 11:35:45,153 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 11:35:45,153 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 11:35:45,153 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 11:35:45,153 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 11:35:45,153 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 11:35:45,153 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 11:35:45,154 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 11:35:45,154 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 11:35:45,154 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 11:35:45,154 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 11:35:45,154 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 11:35:45,154 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 11:35:45,154 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 11:35:45,154 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 11:35:45,154 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 11:35:45,154 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 11:35:45,154 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 11:35:45,155 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 11:35:45,155 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 11:35:45,155 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 11:35:45,155 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 11:35:45,155 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 11:35:45,155 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:35:45,155 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:35:45,155 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:35:45,155 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:35:45,155 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 11:35:45,155 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:35:45,155 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:35:45,156 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:35:45,156 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:35:45,156 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 11:35:45,156 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 11:35:45,156 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 11:35:45,156 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 11:35:45,156 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 11:35:45,156 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 11:35:45,156 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 11:35:45,156 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 11:35:45,156 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 11:35:45,156 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 11:35:45,156 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_ef023887-41f0-417d-8372-7986d26773ff/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf5a3f22f9d7a0aaa2c9864b464fdc1b701547a697c01ddf6ee0cf69e3554ef9 [2024-12-02 11:35:45,394 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 11:35:45,402 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 11:35:45,404 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 11:35:45,405 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 11:35:45,405 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 11:35:45,406 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef023887-41f0-417d-8372-7986d26773ff/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/product-lines/elevator_spec9_product29.cil.c [2024-12-02 11:35:48,077 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef023887-41f0-417d-8372-7986d26773ff/bin/uautomizer-verify-84ZbGMXZE1/data/82027082c/acc485d42ed74bec8cfaa9804a17a87a/FLAGb3afdf89f [2024-12-02 11:35:48,356 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 11:35:48,357 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef023887-41f0-417d-8372-7986d26773ff/sv-benchmarks/c/product-lines/elevator_spec9_product29.cil.c [2024-12-02 11:35:48,371 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef023887-41f0-417d-8372-7986d26773ff/bin/uautomizer-verify-84ZbGMXZE1/data/82027082c/acc485d42ed74bec8cfaa9804a17a87a/FLAGb3afdf89f [2024-12-02 11:35:48,384 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef023887-41f0-417d-8372-7986d26773ff/bin/uautomizer-verify-84ZbGMXZE1/data/82027082c/acc485d42ed74bec8cfaa9804a17a87a [2024-12-02 11:35:48,386 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 11:35:48,387 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 11:35:48,388 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 11:35:48,388 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 11:35:48,391 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 11:35:48,392 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:35:48" (1/1) ... [2024-12-02 11:35:48,393 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@324a509d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:35:48, skipping insertion in model container [2024-12-02 11:35:48,393 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:35:48" (1/1) ... [2024-12-02 11:35:48,433 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 11:35:48,552 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_ef023887-41f0-417d-8372-7986d26773ff/sv-benchmarks/c/product-lines/elevator_spec9_product29.cil.c[1700,1713] [2024-12-02 11:35:48,803 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:35:48,814 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 11:35:48,820 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [48] [2024-12-02 11:35:48,821 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [62] [2024-12-02 11:35:48,822 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification9_spec.i","") [71] [2024-12-02 11:35:48,822 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [235] [2024-12-02 11:35:48,822 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [903] [2024-12-02 11:35:48,822 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [1263] [2024-12-02 11:35:48,822 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1355] [2024-12-02 11:35:48,822 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1390] [2024-12-02 11:35:48,822 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1756] [2024-12-02 11:35:48,822 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [3289] [2024-12-02 11:35:48,826 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_ef023887-41f0-417d-8372-7986d26773ff/sv-benchmarks/c/product-lines/elevator_spec9_product29.cil.c[1700,1713] [2024-12-02 11:35:48,913 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:35:48,931 INFO L204 MainTranslator]: Completed translation [2024-12-02 11:35:48,932 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:35:48 WrapperNode [2024-12-02 11:35:48,932 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 11:35:48,933 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 11:35:48,933 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 11:35:48,933 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 11:35:48,937 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:35:48" (1/1) ... [2024-12-02 11:35:48,956 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:35:48" (1/1) ... [2024-12-02 11:35:48,990 INFO L138 Inliner]: procedures = 93, calls = 338, calls flagged for inlining = 27, calls inlined = 24, statements flattened = 862 [2024-12-02 11:35:48,991 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 11:35:48,991 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 11:35:48,991 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 11:35:48,991 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 11:35:49,000 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:35:48" (1/1) ... [2024-12-02 11:35:49,000 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:35:48" (1/1) ... [2024-12-02 11:35:49,005 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:35:48" (1/1) ... [2024-12-02 11:35:49,029 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2024-12-02 11:35:49,029 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:35:48" (1/1) ... [2024-12-02 11:35:49,029 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:35:48" (1/1) ... [2024-12-02 11:35:49,046 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:35:48" (1/1) ... [2024-12-02 11:35:49,049 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:35:48" (1/1) ... [2024-12-02 11:35:49,060 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:35:48" (1/1) ... [2024-12-02 11:35:49,065 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:35:48" (1/1) ... [2024-12-02 11:35:49,068 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:35:48" (1/1) ... [2024-12-02 11:35:49,077 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 11:35:49,078 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 11:35:49,078 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 11:35:49,078 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 11:35:49,079 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:35:48" (1/1) ... [2024-12-02 11:35:49,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:35:49,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef023887-41f0-417d-8372-7986d26773ff/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:35:49,107 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef023887-41f0-417d-8372-7986d26773ff/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 11:35:49,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef023887-41f0-417d-8372-7986d26773ff/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 11:35:49,128 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 11:35:49,128 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2024-12-02 11:35:49,129 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2024-12-02 11:35:49,129 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2024-12-02 11:35:49,129 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2024-12-02 11:35:49,129 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-12-02 11:35:49,129 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-12-02 11:35:49,129 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-12-02 11:35:49,129 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-12-02 11:35:49,129 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-12-02 11:35:49,129 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-12-02 11:35:49,129 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2024-12-02 11:35:49,129 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2024-12-02 11:35:49,129 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-12-02 11:35:49,130 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-12-02 11:35:49,130 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-12-02 11:35:49,130 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-12-02 11:35:49,130 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-12-02 11:35:49,130 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-12-02 11:35:49,130 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-12-02 11:35:49,130 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-12-02 11:35:49,130 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-12-02 11:35:49,130 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-12-02 11:35:49,130 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-12-02 11:35:49,130 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-12-02 11:35:49,130 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2024-12-02 11:35:49,130 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2024-12-02 11:35:49,130 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-12-02 11:35:49,131 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-12-02 11:35:49,131 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-12-02 11:35:49,131 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-12-02 11:35:49,131 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-12-02 11:35:49,131 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-12-02 11:35:49,131 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-12-02 11:35:49,131 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-12-02 11:35:49,131 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-12-02 11:35:49,131 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-12-02 11:35:49,131 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2024-12-02 11:35:49,131 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2024-12-02 11:35:49,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 11:35:49,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 11:35:49,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 11:35:49,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 11:35:49,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 11:35:49,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 11:35:49,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-12-02 11:35:49,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-12-02 11:35:49,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-12-02 11:35:49,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-12-02 11:35:49,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-12-02 11:35:49,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-12-02 11:35:49,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-12-02 11:35:49,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-12-02 11:35:49,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-12-02 11:35:49,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-12-02 11:35:49,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-12-02 11:35:49,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-12-02 11:35:49,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-12-02 11:35:49,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-12-02 11:35:49,133 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2024-12-02 11:35:49,133 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2024-12-02 11:35:49,133 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-12-02 11:35:49,133 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-12-02 11:35:49,133 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-12-02 11:35:49,133 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-12-02 11:35:49,133 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-12-02 11:35:49,133 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-12-02 11:35:49,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 11:35:49,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 11:35:49,133 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-12-02 11:35:49,133 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-12-02 11:35:49,294 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 11:35:49,296 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 11:35:50,389 INFO L? ?]: Removed 454 outVars from TransFormulas that were not future-live. [2024-12-02 11:35:50,389 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 11:35:50,411 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 11:35:50,411 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 11:35:50,411 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:35:50 BoogieIcfgContainer [2024-12-02 11:35:50,411 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 11:35:50,413 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 11:35:50,413 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 11:35:50,418 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 11:35:50,418 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 11:35:48" (1/3) ... [2024-12-02 11:35:50,419 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cb77433 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:35:50, skipping insertion in model container [2024-12-02 11:35:50,419 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:35:48" (2/3) ... [2024-12-02 11:35:50,419 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cb77433 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:35:50, skipping insertion in model container [2024-12-02 11:35:50,419 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:35:50" (3/3) ... [2024-12-02 11:35:50,420 INFO L128 eAbstractionObserver]: Analyzing ICFG elevator_spec9_product29.cil.c [2024-12-02 11:35:50,432 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 11:35:50,434 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG elevator_spec9_product29.cil.c that has 25 procedures, 562 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 11:35:50,495 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 11:35:50,506 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;@434821bf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 11:35:50,506 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 11:35:50,511 INFO L276 IsEmpty]: Start isEmpty. Operand has 562 states, 444 states have (on average 1.7004504504504505) internal successors, (755), 465 states have internal predecessors, (755), 92 states have call successors, (92), 24 states have call predecessors, (92), 24 states have return successors, (92), 86 states have call predecessors, (92), 92 states have call successors, (92) [2024-12-02 11:35:50,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-12-02 11:35:50,533 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:35:50,534 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:35:50,534 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:35:50,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:35:50,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1246416288, now seen corresponding path program 1 times [2024-12-02 11:35:50,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:35:50,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066381724] [2024-12-02 11:35:50,547 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:35:50,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:35:50,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:35:51,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:35:51,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:35:51,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066381724] [2024-12-02 11:35:51,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066381724] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:35:51,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:35:51,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:35:51,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283355282] [2024-12-02 11:35:51,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:35:51,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:35:51,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:35:51,029 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:35:51,030 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:35:51,033 INFO L87 Difference]: Start difference. First operand has 562 states, 444 states have (on average 1.7004504504504505) internal successors, (755), 465 states have internal predecessors, (755), 92 states have call successors, (92), 24 states have call predecessors, (92), 24 states have return successors, (92), 86 states have call predecessors, (92), 92 states have call successors, (92) Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 11:35:51,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:35:51,159 INFO L93 Difference]: Finished difference Result 1104 states and 1853 transitions. [2024-12-02 11:35:51,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:35:51,161 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 90 [2024-12-02 11:35:51,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:35:51,176 INFO L225 Difference]: With dead ends: 1104 [2024-12-02 11:35:51,176 INFO L226 Difference]: Without dead ends: 554 [2024-12-02 11:35:51,182 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:35:51,184 INFO L435 NwaCegarLoop]: 918 mSDtfsCounter, 5 mSDsluCounter, 1832 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2750 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:35:51,185 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2750 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:35:51,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2024-12-02 11:35:51,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2024-12-02 11:35:51,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 438 states have (on average 1.6963470319634704) internal successors, (743), 457 states have internal predecessors, (743), 92 states have call successors, (92), 24 states have call predecessors, (92), 23 states have return successors, (87), 85 states have call predecessors, (87), 87 states have call successors, (87) [2024-12-02 11:35:51,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 922 transitions. [2024-12-02 11:35:51,258 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 922 transitions. Word has length 90 [2024-12-02 11:35:51,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:35:51,259 INFO L471 AbstractCegarLoop]: Abstraction has 554 states and 922 transitions. [2024-12-02 11:35:51,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 11:35:51,259 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 922 transitions. [2024-12-02 11:35:51,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-12-02 11:35:51,265 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:35:51,265 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:35:51,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 11:35:51,266 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:35:51,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:35:51,266 INFO L85 PathProgramCache]: Analyzing trace with hash -374154572, now seen corresponding path program 1 times [2024-12-02 11:35:51,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:35:51,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144618695] [2024-12-02 11:35:51,267 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:35:51,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:35:51,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:35:51,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:35:51,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:35:51,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144618695] [2024-12-02 11:35:51,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144618695] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:35:51,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:35:51,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:35:51,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339639962] [2024-12-02 11:35:51,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:35:51,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:35:51,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:35:51,467 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:35:51,468 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:35:51,468 INFO L87 Difference]: Start difference. First operand 554 states and 922 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 11:35:51,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:35:51,546 INFO L93 Difference]: Finished difference Result 1090 states and 1821 transitions. [2024-12-02 11:35:51,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:35:51,547 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), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 92 [2024-12-02 11:35:51,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:35:51,552 INFO L225 Difference]: With dead ends: 1090 [2024-12-02 11:35:51,553 INFO L226 Difference]: Without dead ends: 554 [2024-12-02 11:35:51,556 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:35:51,556 INFO L435 NwaCegarLoop]: 911 mSDtfsCounter, 4 mSDsluCounter, 1818 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2729 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:35:51,557 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2729 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:35:51,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2024-12-02 11:35:51,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2024-12-02 11:35:51,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 438 states have (on average 1.6940639269406392) internal successors, (742), 457 states have internal predecessors, (742), 92 states have call successors, (92), 24 states have call predecessors, (92), 23 states have return successors, (87), 85 states have call predecessors, (87), 87 states have call successors, (87) [2024-12-02 11:35:51,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 921 transitions. [2024-12-02 11:35:51,591 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 921 transitions. Word has length 92 [2024-12-02 11:35:51,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:35:51,591 INFO L471 AbstractCegarLoop]: Abstraction has 554 states and 921 transitions. [2024-12-02 11:35:51,592 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), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 11:35:51,592 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 921 transitions. [2024-12-02 11:35:51,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-12-02 11:35:51,596 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:35:51,596 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:35:51,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 11:35:51,596 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:35:51,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:35:51,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1561098215, now seen corresponding path program 1 times [2024-12-02 11:35:51,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:35:51,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260796401] [2024-12-02 11:35:51,597 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:35:51,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:35:51,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:35:51,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:35:51,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:35:51,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260796401] [2024-12-02 11:35:51,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260796401] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:35:51,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:35:51,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:35:51,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869088297] [2024-12-02 11:35:51,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:35:51,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:35:51,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:35:51,744 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:35:51,744 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:35:51,745 INFO L87 Difference]: Start difference. First operand 554 states and 921 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 11:35:51,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:35:51,809 INFO L93 Difference]: Finished difference Result 1090 states and 1820 transitions. [2024-12-02 11:35:51,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:35:51,810 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), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 93 [2024-12-02 11:35:51,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:35:51,816 INFO L225 Difference]: With dead ends: 1090 [2024-12-02 11:35:51,816 INFO L226 Difference]: Without dead ends: 554 [2024-12-02 11:35:51,818 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:35:51,819 INFO L435 NwaCegarLoop]: 911 mSDtfsCounter, 3 mSDsluCounter, 1818 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2729 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:35:51,820 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2729 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:35:51,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2024-12-02 11:35:51,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2024-12-02 11:35:51,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 438 states have (on average 1.6917808219178083) internal successors, (741), 457 states have internal predecessors, (741), 92 states have call successors, (92), 24 states have call predecessors, (92), 23 states have return successors, (87), 85 states have call predecessors, (87), 87 states have call successors, (87) [2024-12-02 11:35:51,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 920 transitions. [2024-12-02 11:35:51,850 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 920 transitions. Word has length 93 [2024-12-02 11:35:51,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:35:51,850 INFO L471 AbstractCegarLoop]: Abstraction has 554 states and 920 transitions. [2024-12-02 11:35:51,850 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), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 11:35:51,850 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 920 transitions. [2024-12-02 11:35:51,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-12-02 11:35:51,854 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:35:51,854 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:35:51,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 11:35:51,855 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:35:51,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:35:51,855 INFO L85 PathProgramCache]: Analyzing trace with hash 778834008, now seen corresponding path program 1 times [2024-12-02 11:35:51,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:35:51,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486726647] [2024-12-02 11:35:51,855 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:35:51,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:35:51,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:35:52,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:35:52,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:35:52,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486726647] [2024-12-02 11:35:52,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486726647] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:35:52,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:35:52,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:35:52,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605161128] [2024-12-02 11:35:52,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:35:52,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:35:52,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:35:52,039 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:35:52,039 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:35:52,039 INFO L87 Difference]: Start difference. First operand 554 states and 920 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 11:35:52,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:35:52,109 INFO L93 Difference]: Finished difference Result 1090 states and 1819 transitions. [2024-12-02 11:35:52,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:35:52,109 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 94 [2024-12-02 11:35:52,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:35:52,114 INFO L225 Difference]: With dead ends: 1090 [2024-12-02 11:35:52,114 INFO L226 Difference]: Without dead ends: 554 [2024-12-02 11:35:52,116 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:35:52,117 INFO L435 NwaCegarLoop]: 911 mSDtfsCounter, 2 mSDsluCounter, 1818 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2729 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:35:52,117 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2729 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:35:52,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2024-12-02 11:35:52,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2024-12-02 11:35:52,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 438 states have (on average 1.6894977168949772) internal successors, (740), 457 states have internal predecessors, (740), 92 states have call successors, (92), 24 states have call predecessors, (92), 23 states have return successors, (87), 85 states have call predecessors, (87), 87 states have call successors, (87) [2024-12-02 11:35:52,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 919 transitions. [2024-12-02 11:35:52,141 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 919 transitions. Word has length 94 [2024-12-02 11:35:52,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:35:52,141 INFO L471 AbstractCegarLoop]: Abstraction has 554 states and 919 transitions. [2024-12-02 11:35:52,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 11:35:52,141 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 919 transitions. [2024-12-02 11:35:52,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 11:35:52,145 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:35:52,145 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:35:52,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 11:35:52,145 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:35:52,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:35:52,146 INFO L85 PathProgramCache]: Analyzing trace with hash 782768381, now seen corresponding path program 1 times [2024-12-02 11:35:52,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:35:52,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428409124] [2024-12-02 11:35:52,146 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:35:52,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:35:52,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:35:52,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:35:52,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:35:52,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428409124] [2024-12-02 11:35:52,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428409124] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:35:52,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:35:52,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:35:52,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643499130] [2024-12-02 11:35:52,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:35:52,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:35:52,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:35:52,275 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:35:52,275 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:35:52,275 INFO L87 Difference]: Start difference. First operand 554 states and 919 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 11:35:52,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:35:52,323 INFO L93 Difference]: Finished difference Result 1090 states and 1818 transitions. [2024-12-02 11:35:52,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:35:52,324 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 95 [2024-12-02 11:35:52,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:35:52,328 INFO L225 Difference]: With dead ends: 1090 [2024-12-02 11:35:52,328 INFO L226 Difference]: Without dead ends: 554 [2024-12-02 11:35:52,331 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:35:52,331 INFO L435 NwaCegarLoop]: 911 mSDtfsCounter, 1 mSDsluCounter, 1818 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2729 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:35:52,332 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2729 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:35:52,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2024-12-02 11:35:52,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2024-12-02 11:35:52,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 438 states have (on average 1.687214611872146) internal successors, (739), 457 states have internal predecessors, (739), 92 states have call successors, (92), 24 states have call predecessors, (92), 23 states have return successors, (87), 85 states have call predecessors, (87), 87 states have call successors, (87) [2024-12-02 11:35:52,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 918 transitions. [2024-12-02 11:35:52,355 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 918 transitions. Word has length 95 [2024-12-02 11:35:52,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:35:52,355 INFO L471 AbstractCegarLoop]: Abstraction has 554 states and 918 transitions. [2024-12-02 11:35:52,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 11:35:52,355 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 918 transitions. [2024-12-02 11:35:52,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-12-02 11:35:52,359 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:35:52,359 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:35:52,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 11:35:52,359 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:35:52,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:35:52,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1385213436, now seen corresponding path program 1 times [2024-12-02 11:35:52,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:35:52,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847003312] [2024-12-02 11:35:52,360 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:35:52,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:35:52,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:35:52,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:35:52,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:35:52,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847003312] [2024-12-02 11:35:52,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847003312] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:35:52,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:35:52,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 11:35:52,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824748963] [2024-12-02 11:35:52,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:35:52,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:35:52,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:35:52,554 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:35:52,554 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:35:52,555 INFO L87 Difference]: Start difference. First operand 554 states and 918 transitions. Second operand has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-12-02 11:35:52,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:35:52,670 INFO L93 Difference]: Finished difference Result 1056 states and 1750 transitions. [2024-12-02 11:35:52,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 11:35:52,670 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 96 [2024-12-02 11:35:52,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:35:52,675 INFO L225 Difference]: With dead ends: 1056 [2024-12-02 11:35:52,675 INFO L226 Difference]: Without dead ends: 569 [2024-12-02 11:35:52,678 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-12-02 11:35:52,678 INFO L435 NwaCegarLoop]: 908 mSDtfsCounter, 91 mSDsluCounter, 4459 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 5367 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:35:52,679 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 5367 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:35:52,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2024-12-02 11:35:52,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 567. [2024-12-02 11:35:52,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 448 states have (on average 1.6830357142857142) internal successors, (754), 469 states have internal predecessors, (754), 93 states have call successors, (93), 24 states have call predecessors, (93), 25 states have return successors, (90), 86 states have call predecessors, (90), 88 states have call successors, (90) [2024-12-02 11:35:52,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 937 transitions. [2024-12-02 11:35:52,708 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 937 transitions. Word has length 96 [2024-12-02 11:35:52,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:35:52,708 INFO L471 AbstractCegarLoop]: Abstraction has 567 states and 937 transitions. [2024-12-02 11:35:52,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-12-02 11:35:52,708 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 937 transitions. [2024-12-02 11:35:52,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-12-02 11:35:52,712 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:35:52,712 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:35:52,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 11:35:52,713 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:35:52,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:35:52,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1505333309, now seen corresponding path program 1 times [2024-12-02 11:35:52,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:35:52,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522487569] [2024-12-02 11:35:52,713 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:35:52,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:35:52,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:35:52,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:35:52,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:35:52,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522487569] [2024-12-02 11:35:52,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522487569] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:35:52,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:35:52,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:35:52,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700067956] [2024-12-02 11:35:52,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:35:52,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:35:52,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:35:52,833 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:35:52,833 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:35:52,833 INFO L87 Difference]: Start difference. First operand 567 states and 937 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 11:35:52,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:35:52,883 INFO L93 Difference]: Finished difference Result 1108 states and 1844 transitions. [2024-12-02 11:35:52,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:35:52,884 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 96 [2024-12-02 11:35:52,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:35:52,888 INFO L225 Difference]: With dead ends: 1108 [2024-12-02 11:35:52,889 INFO L226 Difference]: Without dead ends: 548 [2024-12-02 11:35:52,891 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:35:52,892 INFO L435 NwaCegarLoop]: 912 mSDtfsCounter, 0 mSDsluCounter, 1819 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2731 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:35:52,892 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2731 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:35:52,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2024-12-02 11:35:52,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 548. [2024-12-02 11:35:52,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 432 states have (on average 1.6782407407407407) internal successors, (725), 451 states have internal predecessors, (725), 92 states have call successors, (92), 24 states have call predecessors, (92), 23 states have return successors, (87), 85 states have call predecessors, (87), 87 states have call successors, (87) [2024-12-02 11:35:52,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 904 transitions. [2024-12-02 11:35:52,915 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 904 transitions. Word has length 96 [2024-12-02 11:35:52,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:35:52,915 INFO L471 AbstractCegarLoop]: Abstraction has 548 states and 904 transitions. [2024-12-02 11:35:52,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 11:35:52,915 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 904 transitions. [2024-12-02 11:35:52,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-12-02 11:35:52,919 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:35:52,919 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:35:52,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 11:35:52,919 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:35:52,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:35:52,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1696647568, now seen corresponding path program 1 times [2024-12-02 11:35:52,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:35:52,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678939450] [2024-12-02 11:35:52,920 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:35:52,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:35:52,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:35:53,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:35:53,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:35:53,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678939450] [2024-12-02 11:35:53,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678939450] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:35:53,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:35:53,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:35:53,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137032613] [2024-12-02 11:35:53,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:35:53,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:35:53,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:35:53,077 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:35:53,077 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:35:53,077 INFO L87 Difference]: Start difference. First operand 548 states and 904 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 11:35:53,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:35:53,274 INFO L93 Difference]: Finished difference Result 1053 states and 1742 transitions. [2024-12-02 11:35:53,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 11:35:53,274 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 97 [2024-12-02 11:35:53,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:35:53,279 INFO L225 Difference]: With dead ends: 1053 [2024-12-02 11:35:53,279 INFO L226 Difference]: Without dead ends: 557 [2024-12-02 11:35:53,282 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:35:53,282 INFO L435 NwaCegarLoop]: 861 mSDtfsCounter, 55 mSDsluCounter, 3415 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 4276 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:35:53,282 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 4276 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:35:53,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2024-12-02 11:35:53,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 548. [2024-12-02 11:35:53,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 432 states have (on average 1.6689814814814814) internal successors, (721), 451 states have internal predecessors, (721), 92 states have call successors, (92), 24 states have call predecessors, (92), 23 states have return successors, (87), 85 states have call predecessors, (87), 87 states have call successors, (87) [2024-12-02 11:35:53,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 900 transitions. [2024-12-02 11:35:53,305 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 900 transitions. Word has length 97 [2024-12-02 11:35:53,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:35:53,305 INFO L471 AbstractCegarLoop]: Abstraction has 548 states and 900 transitions. [2024-12-02 11:35:53,305 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 11:35:53,305 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 900 transitions. [2024-12-02 11:35:53,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-12-02 11:35:53,309 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:35:53,309 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:35:53,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 11:35:53,309 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:35:53,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:35:53,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1391947079, now seen corresponding path program 1 times [2024-12-02 11:35:53,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:35:53,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079317974] [2024-12-02 11:35:53,310 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:35:53,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:35:53,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:35:53,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:35:53,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:35:53,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079317974] [2024-12-02 11:35:53,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079317974] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:35:53,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:35:53,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:35:53,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948303568] [2024-12-02 11:35:53,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:35:53,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:35:53,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:35:53,462 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:35:53,462 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:35:53,462 INFO L87 Difference]: Start difference. First operand 548 states and 900 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 11:35:53,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:35:53,638 INFO L93 Difference]: Finished difference Result 1053 states and 1738 transitions. [2024-12-02 11:35:53,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 11:35:53,639 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 98 [2024-12-02 11:35:53,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:35:53,642 INFO L225 Difference]: With dead ends: 1053 [2024-12-02 11:35:53,642 INFO L226 Difference]: Without dead ends: 557 [2024-12-02 11:35:53,643 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:35:53,644 INFO L435 NwaCegarLoop]: 861 mSDtfsCounter, 54 mSDsluCounter, 3415 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 4276 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:35:53,644 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 4276 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:35:53,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2024-12-02 11:35:53,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 548. [2024-12-02 11:35:53,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 432 states have (on average 1.6597222222222223) internal successors, (717), 451 states have internal predecessors, (717), 92 states have call successors, (92), 24 states have call predecessors, (92), 23 states have return successors, (87), 85 states have call predecessors, (87), 87 states have call successors, (87) [2024-12-02 11:35:53,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 896 transitions. [2024-12-02 11:35:53,660 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 896 transitions. Word has length 98 [2024-12-02 11:35:53,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:35:53,660 INFO L471 AbstractCegarLoop]: Abstraction has 548 states and 896 transitions. [2024-12-02 11:35:53,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 11:35:53,660 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 896 transitions. [2024-12-02 11:35:53,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-12-02 11:35:53,662 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:35:53,663 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:35:53,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 11:35:53,663 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:35:53,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:35:53,663 INFO L85 PathProgramCache]: Analyzing trace with hash -309364981, now seen corresponding path program 1 times [2024-12-02 11:35:53,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:35:53,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587383442] [2024-12-02 11:35:53,663 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:35:53,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:35:53,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:35:53,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:35:53,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:35:53,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587383442] [2024-12-02 11:35:53,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587383442] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:35:53,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:35:53,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:35:53,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616544622] [2024-12-02 11:35:53,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:35:53,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:35:53,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:35:53,769 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:35:53,769 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:35:53,769 INFO L87 Difference]: Start difference. First operand 548 states and 896 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 11:35:53,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:35:53,926 INFO L93 Difference]: Finished difference Result 1053 states and 1734 transitions. [2024-12-02 11:35:53,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 11:35:53,926 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 99 [2024-12-02 11:35:53,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:35:53,931 INFO L225 Difference]: With dead ends: 1053 [2024-12-02 11:35:53,931 INFO L226 Difference]: Without dead ends: 557 [2024-12-02 11:35:53,933 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:35:53,933 INFO L435 NwaCegarLoop]: 860 mSDtfsCounter, 53 mSDsluCounter, 3398 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 4258 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:35:53,934 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 4258 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:35:53,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2024-12-02 11:35:53,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 548. [2024-12-02 11:35:53,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 432 states have (on average 1.650462962962963) internal successors, (713), 451 states have internal predecessors, (713), 92 states have call successors, (92), 24 states have call predecessors, (92), 23 states have return successors, (87), 85 states have call predecessors, (87), 87 states have call successors, (87) [2024-12-02 11:35:53,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 892 transitions. [2024-12-02 11:35:53,948 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 892 transitions. Word has length 99 [2024-12-02 11:35:53,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:35:53,948 INFO L471 AbstractCegarLoop]: Abstraction has 548 states and 892 transitions. [2024-12-02 11:35:53,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 11:35:53,949 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 892 transitions. [2024-12-02 11:35:53,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-12-02 11:35:53,951 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:35:53,951 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:35:53,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 11:35:53,952 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:35:53,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:35:53,952 INFO L85 PathProgramCache]: Analyzing trace with hash 906390155, now seen corresponding path program 1 times [2024-12-02 11:35:53,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:35:53,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273156846] [2024-12-02 11:35:53,952 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:35:53,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:35:53,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:35:54,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:35:54,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:35:54,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273156846] [2024-12-02 11:35:54,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273156846] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:35:54,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:35:54,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 11:35:54,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855991410] [2024-12-02 11:35:54,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:35:54,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:35:54,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:35:54,111 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:35:54,111 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:35:54,112 INFO L87 Difference]: Start difference. First operand 548 states and 892 transitions. Second operand has 7 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-12-02 11:35:54,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:35:54,183 INFO L93 Difference]: Finished difference Result 1044 states and 1716 transitions. [2024-12-02 11:35:54,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 11:35:54,184 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 99 [2024-12-02 11:35:54,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:35:54,189 INFO L225 Difference]: With dead ends: 1044 [2024-12-02 11:35:54,189 INFO L226 Difference]: Without dead ends: 527 [2024-12-02 11:35:54,191 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-12-02 11:35:54,191 INFO L435 NwaCegarLoop]: 881 mSDtfsCounter, 84 mSDsluCounter, 4332 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 5213 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:35:54,192 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 5213 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:35:54,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2024-12-02 11:35:54,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 527. [2024-12-02 11:35:54,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 411 states have (on average 1.6520681265206814) internal successors, (679), 430 states have internal predecessors, (679), 92 states have call successors, (92), 24 states have call predecessors, (92), 23 states have return successors, (87), 85 states have call predecessors, (87), 87 states have call successors, (87) [2024-12-02 11:35:54,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 858 transitions. [2024-12-02 11:35:54,210 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 858 transitions. Word has length 99 [2024-12-02 11:35:54,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:35:54,211 INFO L471 AbstractCegarLoop]: Abstraction has 527 states and 858 transitions. [2024-12-02 11:35:54,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-12-02 11:35:54,211 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 858 transitions. [2024-12-02 11:35:54,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-12-02 11:35:54,214 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:35:54,214 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:35:54,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 11:35:54,214 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:35:54,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:35:54,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1230677332, now seen corresponding path program 1 times [2024-12-02 11:35:54,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:35:54,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222812229] [2024-12-02 11:35:54,215 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:35:54,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:35:54,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:35:54,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:35:54,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:35:54,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222812229] [2024-12-02 11:35:54,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222812229] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:35:54,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:35:54,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:35:54,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52115720] [2024-12-02 11:35:54,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:35:54,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:35:54,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:35:54,342 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:35:54,342 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:35:54,342 INFO L87 Difference]: Start difference. First operand 527 states and 858 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 11:35:54,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:35:54,415 INFO L93 Difference]: Finished difference Result 1023 states and 1682 transitions. [2024-12-02 11:35:54,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 11:35:54,415 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 100 [2024-12-02 11:35:54,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:35:54,419 INFO L225 Difference]: With dead ends: 1023 [2024-12-02 11:35:54,419 INFO L226 Difference]: Without dead ends: 527 [2024-12-02 11:35:54,421 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:35:54,421 INFO L435 NwaCegarLoop]: 841 mSDtfsCounter, 17 mSDsluCounter, 3355 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 4196 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:35:54,421 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 4196 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:35:54,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2024-12-02 11:35:54,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 527. [2024-12-02 11:35:54,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 411 states have (on average 1.6496350364963503) internal successors, (678), 430 states have internal predecessors, (678), 92 states have call successors, (92), 24 states have call predecessors, (92), 23 states have return successors, (87), 85 states have call predecessors, (87), 87 states have call successors, (87) [2024-12-02 11:35:54,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 857 transitions. [2024-12-02 11:35:54,435 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 857 transitions. Word has length 100 [2024-12-02 11:35:54,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:35:54,435 INFO L471 AbstractCegarLoop]: Abstraction has 527 states and 857 transitions. [2024-12-02 11:35:54,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 11:35:54,435 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 857 transitions. [2024-12-02 11:35:54,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-12-02 11:35:54,437 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:35:54,437 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:35:54,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 11:35:54,438 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:35:54,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:35:54,438 INFO L85 PathProgramCache]: Analyzing trace with hash -227882874, now seen corresponding path program 1 times [2024-12-02 11:35:54,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:35:54,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896141164] [2024-12-02 11:35:54,438 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:35:54,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:35:54,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:35:54,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:35:54,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:35:54,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896141164] [2024-12-02 11:35:54,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896141164] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:35:54,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:35:54,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:35:54,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102176346] [2024-12-02 11:35:54,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:35:54,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:35:54,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:35:54,543 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:35:54,543 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:35:54,543 INFO L87 Difference]: Start difference. First operand 527 states and 857 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 11:35:54,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:35:54,606 INFO L93 Difference]: Finished difference Result 1023 states and 1681 transitions. [2024-12-02 11:35:54,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 11:35:54,606 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 101 [2024-12-02 11:35:54,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:35:54,610 INFO L225 Difference]: With dead ends: 1023 [2024-12-02 11:35:54,610 INFO L226 Difference]: Without dead ends: 527 [2024-12-02 11:35:54,611 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:35:54,612 INFO L435 NwaCegarLoop]: 841 mSDtfsCounter, 16 mSDsluCounter, 3355 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 4196 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:35:54,612 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 4196 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:35:54,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2024-12-02 11:35:54,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 527. [2024-12-02 11:35:54,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 411 states have (on average 1.6472019464720196) internal successors, (677), 430 states have internal predecessors, (677), 92 states have call successors, (92), 24 states have call predecessors, (92), 23 states have return successors, (87), 85 states have call predecessors, (87), 87 states have call successors, (87) [2024-12-02 11:35:54,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 856 transitions. [2024-12-02 11:35:54,645 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 856 transitions. Word has length 101 [2024-12-02 11:35:54,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:35:54,645 INFO L471 AbstractCegarLoop]: Abstraction has 527 states and 856 transitions. [2024-12-02 11:35:54,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 11:35:54,645 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 856 transitions. [2024-12-02 11:35:54,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-12-02 11:35:54,647 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:35:54,647 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:35:54,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 11:35:54,647 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:35:54,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:35:54,648 INFO L85 PathProgramCache]: Analyzing trace with hash -153840657, now seen corresponding path program 1 times [2024-12-02 11:35:54,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:35:54,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975639148] [2024-12-02 11:35:54,648 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:35:54,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:35:54,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:35:54,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:35:54,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:35:54,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975639148] [2024-12-02 11:35:54,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975639148] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:35:54,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:35:54,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:35:54,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444674479] [2024-12-02 11:35:54,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:35:54,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:35:54,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:35:54,727 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:35:54,727 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:35:54,727 INFO L87 Difference]: Start difference. First operand 527 states and 856 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 11:35:54,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:35:54,761 INFO L93 Difference]: Finished difference Result 1017 states and 1669 transitions. [2024-12-02 11:35:54,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:35:54,762 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 102 [2024-12-02 11:35:54,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:35:54,765 INFO L225 Difference]: With dead ends: 1017 [2024-12-02 11:35:54,765 INFO L226 Difference]: Without dead ends: 527 [2024-12-02 11:35:54,766 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:35:54,767 INFO L435 NwaCegarLoop]: 844 mSDtfsCounter, 5 mSDsluCounter, 1678 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2522 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:35:54,767 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2522 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:35:54,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2024-12-02 11:35:54,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 527. [2024-12-02 11:35:54,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 411 states have (on average 1.6447688564476886) internal successors, (676), 430 states have internal predecessors, (676), 92 states have call successors, (92), 24 states have call predecessors, (92), 23 states have return successors, (87), 85 states have call predecessors, (87), 87 states have call successors, (87) [2024-12-02 11:35:54,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 855 transitions. [2024-12-02 11:35:54,780 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 855 transitions. Word has length 102 [2024-12-02 11:35:54,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:35:54,781 INFO L471 AbstractCegarLoop]: Abstraction has 527 states and 855 transitions. [2024-12-02 11:35:54,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 11:35:54,781 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 855 transitions. [2024-12-02 11:35:54,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-12-02 11:35:54,783 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:35:54,783 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:35:54,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 11:35:54,783 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:35:54,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:35:54,784 INFO L85 PathProgramCache]: Analyzing trace with hash 89656113, now seen corresponding path program 1 times [2024-12-02 11:35:54,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:35:54,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660249910] [2024-12-02 11:35:54,784 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:35:54,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:35:54,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:35:54,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:35:54,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:35:54,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660249910] [2024-12-02 11:35:54,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660249910] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:35:54,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:35:54,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 11:35:54,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722548990] [2024-12-02 11:35:54,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:35:54,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 11:35:54,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:35:54,982 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 11:35:54,982 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 11:35:54,982 INFO L87 Difference]: Start difference. First operand 527 states and 855 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 5 states have call successors, (12), 3 states have call predecessors, (12), 4 states have return successors, (11), 6 states have call predecessors, (11), 4 states have call successors, (11) [2024-12-02 11:35:56,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:35:56,710 INFO L93 Difference]: Finished difference Result 1013 states and 1681 transitions. [2024-12-02 11:35:56,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 11:35:56,711 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 5 states have call successors, (12), 3 states have call predecessors, (12), 4 states have return successors, (11), 6 states have call predecessors, (11), 4 states have call successors, (11) Word has length 103 [2024-12-02 11:35:56,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:35:56,715 INFO L225 Difference]: With dead ends: 1013 [2024-12-02 11:35:56,715 INFO L226 Difference]: Without dead ends: 531 [2024-12-02 11:35:56,717 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-12-02 11:35:56,717 INFO L435 NwaCegarLoop]: 361 mSDtfsCounter, 1317 mSDsluCounter, 1158 mSDsCounter, 0 mSdLazyCounter, 2774 mSolverCounterSat, 378 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1317 SdHoareTripleChecker+Valid, 1519 SdHoareTripleChecker+Invalid, 3152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 378 IncrementalHoareTripleChecker+Valid, 2774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-12-02 11:35:56,718 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1317 Valid, 1519 Invalid, 3152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [378 Valid, 2774 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-12-02 11:35:56,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2024-12-02 11:35:56,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 531. [2024-12-02 11:35:56,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 414 states have (on average 1.6400966183574879) internal successors, (679), 433 states have internal predecessors, (679), 92 states have call successors, (92), 24 states have call predecessors, (92), 24 states have return successors, (103), 86 states have call predecessors, (103), 87 states have call successors, (103) [2024-12-02 11:35:56,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 874 transitions. [2024-12-02 11:35:56,738 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 874 transitions. Word has length 103 [2024-12-02 11:35:56,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:35:56,738 INFO L471 AbstractCegarLoop]: Abstraction has 531 states and 874 transitions. [2024-12-02 11:35:56,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 5 states have call successors, (12), 3 states have call predecessors, (12), 4 states have return successors, (11), 6 states have call predecessors, (11), 4 states have call successors, (11) [2024-12-02 11:35:56,739 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 874 transitions. [2024-12-02 11:35:56,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-12-02 11:35:56,741 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:35:56,741 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:35:56,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 11:35:56,741 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:35:56,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:35:56,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1706037826, now seen corresponding path program 1 times [2024-12-02 11:35:56,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:35:56,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822793140] [2024-12-02 11:35:56,742 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:35:56,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:35:56,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:35:56,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:35:56,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:35:56,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822793140] [2024-12-02 11:35:56,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822793140] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:35:56,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:35:56,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 11:35:56,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448978380] [2024-12-02 11:35:56,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:35:56,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:35:56,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:35:56,871 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:35:56,872 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:35:56,872 INFO L87 Difference]: Start difference. First operand 531 states and 874 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 5 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-12-02 11:36:00,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:36:00,162 INFO L93 Difference]: Finished difference Result 1888 states and 3215 transitions. [2024-12-02 11:36:00,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 11:36:00,162 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 5 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 104 [2024-12-02 11:36:00,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:36:00,173 INFO L225 Difference]: With dead ends: 1888 [2024-12-02 11:36:00,173 INFO L226 Difference]: Without dead ends: 1402 [2024-12-02 11:36:00,176 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2024-12-02 11:36:00,177 INFO L435 NwaCegarLoop]: 545 mSDtfsCounter, 2417 mSDsluCounter, 1745 mSDsCounter, 0 mSdLazyCounter, 4976 mSolverCounterSat, 603 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2488 SdHoareTripleChecker+Valid, 2290 SdHoareTripleChecker+Invalid, 5579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 603 IncrementalHoareTripleChecker+Valid, 4976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:36:00,177 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2488 Valid, 2290 Invalid, 5579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [603 Valid, 4976 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-12-02 11:36:00,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1402 states. [2024-12-02 11:36:00,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1402 to 1342. [2024-12-02 11:36:00,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1342 states, 1042 states have (on average 1.6497120921305182) internal successors, (1719), 1090 states have internal predecessors, (1719), 236 states have call successors, (236), 63 states have call predecessors, (236), 63 states have return successors, (257), 225 states have call predecessors, (257), 231 states have call successors, (257) [2024-12-02 11:36:00,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1342 states to 1342 states and 2212 transitions. [2024-12-02 11:36:00,257 INFO L78 Accepts]: Start accepts. Automaton has 1342 states and 2212 transitions. Word has length 104 [2024-12-02 11:36:00,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:36:00,257 INFO L471 AbstractCegarLoop]: Abstraction has 1342 states and 2212 transitions. [2024-12-02 11:36:00,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 5 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-12-02 11:36:00,257 INFO L276 IsEmpty]: Start isEmpty. Operand 1342 states and 2212 transitions. [2024-12-02 11:36:00,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-12-02 11:36:00,260 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:36:00,260 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:36:00,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 11:36:00,260 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:36:00,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:36:00,261 INFO L85 PathProgramCache]: Analyzing trace with hash 344803053, now seen corresponding path program 1 times [2024-12-02 11:36:00,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:36:00,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269707216] [2024-12-02 11:36:00,261 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:36:00,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:36:00,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:36:00,409 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 11:36:00,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:36:00,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269707216] [2024-12-02 11:36:00,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269707216] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:36:00,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:36:00,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:36:00,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400689092] [2024-12-02 11:36:00,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:36:00,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:36:00,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:36:00,411 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:36:00,411 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:36:00,411 INFO L87 Difference]: Start difference. First operand 1342 states and 2212 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 6 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2024-12-02 11:36:02,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:36:02,747 INFO L93 Difference]: Finished difference Result 4699 states and 7970 transitions. [2024-12-02 11:36:02,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 11:36:02,748 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 6 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) Word has length 106 [2024-12-02 11:36:02,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:36:02,782 INFO L225 Difference]: With dead ends: 4699 [2024-12-02 11:36:02,782 INFO L226 Difference]: Without dead ends: 3403 [2024-12-02 11:36:02,787 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-12-02 11:36:02,787 INFO L435 NwaCegarLoop]: 803 mSDtfsCounter, 3372 mSDsluCounter, 1202 mSDsCounter, 0 mSdLazyCounter, 3434 mSolverCounterSat, 986 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3406 SdHoareTripleChecker+Valid, 2005 SdHoareTripleChecker+Invalid, 4420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 986 IncrementalHoareTripleChecker+Valid, 3434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:36:02,787 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3406 Valid, 2005 Invalid, 4420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [986 Valid, 3434 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-12-02 11:36:02,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3403 states. [2024-12-02 11:36:02,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3403 to 3076. [2024-12-02 11:36:02,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3076 states, 2273 states have (on average 1.6352837659480863) internal successors, (3717), 2419 states have internal predecessors, (3717), 670 states have call successors, (670), 121 states have call predecessors, (670), 132 states have return successors, (771), 657 states have call predecessors, (771), 665 states have call successors, (771) [2024-12-02 11:36:03,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3076 states to 3076 states and 5158 transitions. [2024-12-02 11:36:03,005 INFO L78 Accepts]: Start accepts. Automaton has 3076 states and 5158 transitions. Word has length 106 [2024-12-02 11:36:03,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:36:03,005 INFO L471 AbstractCegarLoop]: Abstraction has 3076 states and 5158 transitions. [2024-12-02 11:36:03,005 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 6 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2024-12-02 11:36:03,005 INFO L276 IsEmpty]: Start isEmpty. Operand 3076 states and 5158 transitions. [2024-12-02 11:36:03,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-12-02 11:36:03,008 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:36:03,008 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:36:03,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 11:36:03,008 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:36:03,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:36:03,009 INFO L85 PathProgramCache]: Analyzing trace with hash 738867961, now seen corresponding path program 1 times [2024-12-02 11:36:03,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:36:03,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79086784] [2024-12-02 11:36:03,009 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:36:03,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:36:03,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:36:03,160 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 11:36:03,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:36:03,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79086784] [2024-12-02 11:36:03,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79086784] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:36:03,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:36:03,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:36:03,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380349310] [2024-12-02 11:36:03,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:36:03,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:36:03,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:36:03,161 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:36:03,161 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:36:03,161 INFO L87 Difference]: Start difference. First operand 3076 states and 5158 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 6 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2024-12-02 11:36:05,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:36:05,767 INFO L93 Difference]: Finished difference Result 11645 states and 20153 transitions. [2024-12-02 11:36:05,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 11:36:05,768 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 6 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) Word has length 107 [2024-12-02 11:36:05,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:36:05,821 INFO L225 Difference]: With dead ends: 11645 [2024-12-02 11:36:05,821 INFO L226 Difference]: Without dead ends: 8616 [2024-12-02 11:36:05,839 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-12-02 11:36:05,840 INFO L435 NwaCegarLoop]: 802 mSDtfsCounter, 3385 mSDsluCounter, 1216 mSDsCounter, 0 mSdLazyCounter, 3397 mSolverCounterSat, 1009 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3420 SdHoareTripleChecker+Valid, 2018 SdHoareTripleChecker+Invalid, 4406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1009 IncrementalHoareTripleChecker+Valid, 3397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:36:05,840 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3420 Valid, 2018 Invalid, 4406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1009 Valid, 3397 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-12-02 11:36:05,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8616 states. [2024-12-02 11:36:06,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8616 to 7695. [2024-12-02 11:36:06,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7695 states, 5362 states have (on average 1.6143230138008207) internal successors, (8656), 5794 states have internal predecessors, (8656), 2047 states have call successors, (2047), 237 states have call predecessors, (2047), 285 states have return successors, (2483), 2042 states have call predecessors, (2483), 2042 states have call successors, (2483) [2024-12-02 11:36:06,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7695 states to 7695 states and 13186 transitions. [2024-12-02 11:36:06,507 INFO L78 Accepts]: Start accepts. Automaton has 7695 states and 13186 transitions. Word has length 107 [2024-12-02 11:36:06,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:36:06,507 INFO L471 AbstractCegarLoop]: Abstraction has 7695 states and 13186 transitions. [2024-12-02 11:36:06,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 6 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2024-12-02 11:36:06,508 INFO L276 IsEmpty]: Start isEmpty. Operand 7695 states and 13186 transitions. [2024-12-02 11:36:06,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-12-02 11:36:06,510 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:36:06,510 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:36:06,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 11:36:06,511 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:36:06,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:36:06,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1551790968, now seen corresponding path program 1 times [2024-12-02 11:36:06,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:36:06,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517380618] [2024-12-02 11:36:06,511 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:36:06,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:36:06,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:36:06,693 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 11:36:06,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:36:06,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517380618] [2024-12-02 11:36:06,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517380618] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:36:06,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:36:06,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:36:06,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715454551] [2024-12-02 11:36:06,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:36:06,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:36:06,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:36:06,694 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:36:06,694 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:36:06,694 INFO L87 Difference]: Start difference. First operand 7695 states and 13186 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 6 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2024-12-02 11:36:10,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:36:10,242 INFO L93 Difference]: Finished difference Result 31698 states and 56200 transitions. [2024-12-02 11:36:10,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 11:36:10,243 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 6 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) Word has length 108 [2024-12-02 11:36:10,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:36:10,415 INFO L225 Difference]: With dead ends: 31698 [2024-12-02 11:36:10,415 INFO L226 Difference]: Without dead ends: 24052 [2024-12-02 11:36:10,458 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-12-02 11:36:10,458 INFO L435 NwaCegarLoop]: 808 mSDtfsCounter, 3397 mSDsluCounter, 1231 mSDsCounter, 0 mSdLazyCounter, 3402 mSolverCounterSat, 1013 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3433 SdHoareTripleChecker+Valid, 2039 SdHoareTripleChecker+Invalid, 4415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1013 IncrementalHoareTripleChecker+Valid, 3402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:36:10,459 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3433 Valid, 2039 Invalid, 4415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1013 Valid, 3402 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-12-02 11:36:10,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24052 states. [2024-12-02 11:36:11,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24052 to 21180. [2024-12-02 11:36:12,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21180 states, 13898 states have (on average 1.59217153547273) internal successors, (22128), 15217 states have internal predecessors, (22128), 6636 states have call successors, (6636), 469 states have call predecessors, (6636), 645 states have return successors, (8547), 6695 states have call predecessors, (8547), 6631 states have call successors, (8547) [2024-12-02 11:36:12,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21180 states to 21180 states and 37311 transitions. [2024-12-02 11:36:12,142 INFO L78 Accepts]: Start accepts. Automaton has 21180 states and 37311 transitions. Word has length 108 [2024-12-02 11:36:12,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:36:12,143 INFO L471 AbstractCegarLoop]: Abstraction has 21180 states and 37311 transitions. [2024-12-02 11:36:12,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 6 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2024-12-02 11:36:12,143 INFO L276 IsEmpty]: Start isEmpty. Operand 21180 states and 37311 transitions. [2024-12-02 11:36:12,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-12-02 11:36:12,145 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:36:12,146 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:36:12,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 11:36:12,146 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:36:12,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:36:12,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1169542924, now seen corresponding path program 1 times [2024-12-02 11:36:12,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:36:12,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333932853] [2024-12-02 11:36:12,146 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:36:12,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:36:12,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:36:12,284 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 11:36:12,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:36:12,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333932853] [2024-12-02 11:36:12,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333932853] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:36:12,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:36:12,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:36:12,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323783787] [2024-12-02 11:36:12,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:36:12,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:36:12,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:36:12,286 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:36:12,286 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:36:12,286 INFO L87 Difference]: Start difference. First operand 21180 states and 37311 transitions. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 6 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2024-12-02 11:36:18,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:36:18,671 INFO L93 Difference]: Finished difference Result 94327 states and 171784 transitions. [2024-12-02 11:36:18,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 11:36:18,672 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 6 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) Word has length 109 [2024-12-02 11:36:18,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:36:19,342 INFO L225 Difference]: With dead ends: 94327 [2024-12-02 11:36:19,342 INFO L226 Difference]: Without dead ends: 73200 [2024-12-02 11:36:19,519 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-12-02 11:36:19,519 INFO L435 NwaCegarLoop]: 814 mSDtfsCounter, 3409 mSDsluCounter, 1246 mSDsCounter, 0 mSdLazyCounter, 3411 mSolverCounterSat, 1015 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3446 SdHoareTripleChecker+Valid, 2060 SdHoareTripleChecker+Invalid, 4426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1015 IncrementalHoareTripleChecker+Valid, 3411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:36:19,520 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3446 Valid, 2060 Invalid, 4426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1015 Valid, 3411 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-12-02 11:36:19,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73200 states. [2024-12-02 11:36:24,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73200 to 63809. [2024-12-02 11:36:24,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63809 states, 39886 states have (on average 1.574086145514717) internal successors, (62784), 44068 states have internal predecessors, (62784), 22353 states have call successors, (22353), 933 states have call predecessors, (22353), 1569 states have return successors, (30701), 22732 states have call predecessors, (30701), 22348 states have call successors, (30701) [2024-12-02 11:36:24,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63809 states to 63809 states and 115838 transitions. [2024-12-02 11:36:24,496 INFO L78 Accepts]: Start accepts. Automaton has 63809 states and 115838 transitions. Word has length 109 [2024-12-02 11:36:24,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:36:24,497 INFO L471 AbstractCegarLoop]: Abstraction has 63809 states and 115838 transitions. [2024-12-02 11:36:24,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 6 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2024-12-02 11:36:24,497 INFO L276 IsEmpty]: Start isEmpty. Operand 63809 states and 115838 transitions. [2024-12-02 11:36:24,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 11:36:24,500 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:36:24,501 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:36:24,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 11:36:24,501 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:36:24,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:36:24,501 INFO L85 PathProgramCache]: Analyzing trace with hash 468442659, now seen corresponding path program 1 times [2024-12-02 11:36:24,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:36:24,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982024523] [2024-12-02 11:36:24,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:36:24,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:36:24,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:36:24,636 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 11:36:24,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:36:24,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982024523] [2024-12-02 11:36:24,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982024523] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:36:24,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:36:24,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:36:24,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460171132] [2024-12-02 11:36:24,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:36:24,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:36:24,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:36:24,638 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:36:24,638 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:36:24,638 INFO L87 Difference]: Start difference. First operand 63809 states and 115838 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 6 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2024-12-02 11:36:43,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:36:43,304 INFO L93 Difference]: Finished difference Result 301848 states and 563638 transitions. [2024-12-02 11:36:43,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 11:36:43,304 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 6 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) Word has length 110 [2024-12-02 11:36:43,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:36:44,569 INFO L225 Difference]: With dead ends: 301848 [2024-12-02 11:36:44,569 INFO L226 Difference]: Without dead ends: 238100 [2024-12-02 11:36:44,904 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-12-02 11:36:44,904 INFO L435 NwaCegarLoop]: 820 mSDtfsCounter, 3421 mSDsluCounter, 1261 mSDsCounter, 0 mSdLazyCounter, 3420 mSolverCounterSat, 1017 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3459 SdHoareTripleChecker+Valid, 2081 SdHoareTripleChecker+Invalid, 4437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1017 IncrementalHoareTripleChecker+Valid, 3420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:36:44,904 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3459 Valid, 2081 Invalid, 4437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1017 Valid, 3420 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-12-02 11:36:45,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238100 states. [2024-12-02 11:36:59,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238100 to 206510. [2024-12-02 11:37:00,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206510 states, 125558 states have (on average 1.5640580448876216) internal successors, (196380), 139159 states have internal predecessors, (196380), 76742 states have call successors, (76742), 1861 states have call predecessors, (76742), 4209 states have return successors, (112353), 78529 states have call predecessors, (112353), 76737 states have call successors, (112353) [2024-12-02 11:37:02,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206510 states to 206510 states and 385475 transitions. [2024-12-02 11:37:02,119 INFO L78 Accepts]: Start accepts. Automaton has 206510 states and 385475 transitions. Word has length 110 [2024-12-02 11:37:02,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:37:02,119 INFO L471 AbstractCegarLoop]: Abstraction has 206510 states and 385475 transitions. [2024-12-02 11:37:02,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 6 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2024-12-02 11:37:02,120 INFO L276 IsEmpty]: Start isEmpty. Operand 206510 states and 385475 transitions. [2024-12-02 11:37:02,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 11:37:02,122 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:37:02,122 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:37:02,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 11:37:02,122 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:37:02,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:37:02,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1898251935, now seen corresponding path program 1 times [2024-12-02 11:37:02,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:37:02,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622674607] [2024-12-02 11:37:02,123 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:37:02,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:37:02,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:37:02,261 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 11:37:02,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:37:02,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622674607] [2024-12-02 11:37:02,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622674607] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:37:02,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:37:02,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 11:37:02,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688847760] [2024-12-02 11:37:02,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:37:02,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 11:37:02,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:37:02,263 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 11:37:02,263 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:37:02,263 INFO L87 Difference]: Start difference. First operand 206510 states and 385475 transitions. Second operand has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 9 states have internal predecessors, (83), 6 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2024-12-02 11:37:31,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:37:31,175 INFO L93 Difference]: Finished difference Result 488414 states and 911281 transitions. [2024-12-02 11:37:31,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-02 11:37:31,176 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 9 states have internal predecessors, (83), 6 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) Word has length 110 [2024-12-02 11:37:31,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:37:33,575 INFO L225 Difference]: With dead ends: 488414 [2024-12-02 11:37:33,575 INFO L226 Difference]: Without dead ends: 353250 [2024-12-02 11:37:34,271 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=445, Unknown=0, NotChecked=0, Total=552 [2024-12-02 11:37:34,273 INFO L435 NwaCegarLoop]: 321 mSDtfsCounter, 2441 mSDsluCounter, 1859 mSDsCounter, 0 mSdLazyCounter, 5435 mSolverCounterSat, 521 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2512 SdHoareTripleChecker+Valid, 2180 SdHoareTripleChecker+Invalid, 5956 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 521 IncrementalHoareTripleChecker+Valid, 5435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-12-02 11:37:34,273 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2512 Valid, 2180 Invalid, 5956 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [521 Valid, 5435 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-12-02 11:37:34,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353250 states. [2024-12-02 11:38:00,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353250 to 348729. [2024-12-02 11:38:00,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348729 states, 211973 states have (on average 1.5571747345180753) internal successors, (330079), 234819 states have internal predecessors, (330079), 129220 states have call successors, (129220), 3461 states have call predecessors, (129220), 7535 states have return successors, (190186), 132192 states have call predecessors, (190186), 129215 states have call successors, (190186) [2024-12-02 11:38:03,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348729 states to 348729 states and 649485 transitions. [2024-12-02 11:38:03,502 INFO L78 Accepts]: Start accepts. Automaton has 348729 states and 649485 transitions. Word has length 110 [2024-12-02 11:38:03,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:38:03,503 INFO L471 AbstractCegarLoop]: Abstraction has 348729 states and 649485 transitions. [2024-12-02 11:38:03,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 9 states have internal predecessors, (83), 6 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2024-12-02 11:38:03,503 INFO L276 IsEmpty]: Start isEmpty. Operand 348729 states and 649485 transitions. [2024-12-02 11:38:03,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-12-02 11:38:03,505 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:38:03,505 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:38:03,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 11:38:03,505 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:38:03,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:38:03,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1542537780, now seen corresponding path program 1 times [2024-12-02 11:38:03,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:38:03,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259496176] [2024-12-02 11:38:03,506 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:38:03,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:38:03,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:38:03,616 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 11:38:03,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:38:03,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259496176] [2024-12-02 11:38:03,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259496176] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:38:03,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:38:03,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 11:38:03,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370437046] [2024-12-02 11:38:03,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:38:03,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:38:03,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:38:03,617 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:38:03,617 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:38:03,617 INFO L87 Difference]: Start difference. First operand 348729 states and 649485 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 4 states have call predecessors, (13), 2 states have call successors, (13)