./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/elevator_spec2_product25.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/elevator_spec2_product25.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 68493680033c9035e39b01d00eb3730662e9195bee3c7e3d4b2805e2b52b60ec --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 07:30:13,041 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 07:30:13,115 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 07:30:13,119 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 07:30:13,120 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 07:30:13,149 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 07:30:13,149 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 07:30:13,150 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 07:30:13,150 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 07:30:13,152 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 07:30:13,153 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 07:30:13,153 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 07:30:13,153 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 07:30:13,155 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 07:30:13,156 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 07:30:13,156 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 07:30:13,156 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 07:30:13,156 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 07:30:13,157 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 07:30:13,157 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 07:30:13,157 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 07:30:13,158 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 07:30:13,158 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 07:30:13,158 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 07:30:13,158 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 07:30:13,159 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 07:30:13,159 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 07:30:13,159 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 07:30:13,160 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 07:30:13,160 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 07:30:13,160 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 07:30:13,161 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 07:30:13,161 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 07:30:13,161 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 07:30:13,161 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 07:30:13,162 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 07:30:13,162 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 07:30:13,162 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 07:30:13,162 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 07:30:13,163 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 07:30:13,163 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 07:30:13,164 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 07:30:13,165 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68493680033c9035e39b01d00eb3730662e9195bee3c7e3d4b2805e2b52b60ec [2024-11-16 07:30:13,436 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 07:30:13,459 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 07:30:13,461 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 07:30:13,462 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 07:30:13,463 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 07:30:13,464 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec2_product25.cil.c [2024-11-16 07:30:14,857 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 07:30:15,149 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 07:30:15,151 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product25.cil.c [2024-11-16 07:30:15,179 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c06be9c38/7eb1a7537e3f4a46b53a76f9823cee48/FLAGfff31d13c [2024-11-16 07:30:15,190 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c06be9c38/7eb1a7537e3f4a46b53a76f9823cee48 [2024-11-16 07:30:15,192 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 07:30:15,194 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 07:30:15,196 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 07:30:15,197 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 07:30:15,201 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 07:30:15,202 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:30:15" (1/1) ... [2024-11-16 07:30:15,202 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@181f01aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:30:15, skipping insertion in model container [2024-11-16 07:30:15,203 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:30:15" (1/1) ... [2024-11-16 07:30:15,274 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 07:30:15,819 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product25.cil.c[66231,66244] [2024-11-16 07:30:15,854 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 07:30:15,897 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 07:30:15,920 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [48] [2024-11-16 07:30:15,922 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [86] [2024-11-16 07:30:15,923 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [100] [2024-11-16 07:30:15,923 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [286] [2024-11-16 07:30:15,924 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [1765] [2024-11-16 07:30:15,924 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [1884] [2024-11-16 07:30:15,924 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [2546] [2024-11-16 07:30:15,925 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2638] [2024-11-16 07:30:15,925 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3004] [2024-11-16 07:30:15,925 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [3013] [2024-11-16 07:30:16,000 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product25.cil.c[66231,66244] [2024-11-16 07:30:16,010 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 07:30:16,037 INFO L204 MainTranslator]: Completed translation [2024-11-16 07:30:16,037 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:30:16 WrapperNode [2024-11-16 07:30:16,038 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 07:30:16,039 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 07:30:16,039 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 07:30:16,039 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 07:30:16,045 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:30:16" (1/1) ... [2024-11-16 07:30:16,080 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:30:16" (1/1) ... [2024-11-16 07:30:16,134 INFO L138 Inliner]: procedures = 91, calls = 334, calls flagged for inlining = 27, calls inlined = 24, statements flattened = 844 [2024-11-16 07:30:16,134 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 07:30:16,135 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 07:30:16,135 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 07:30:16,135 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 07:30:16,146 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:30:16" (1/1) ... [2024-11-16 07:30:16,146 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:30:16" (1/1) ... [2024-11-16 07:30:16,151 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:30:16" (1/1) ... [2024-11-16 07:30:16,192 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. 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]. [2024-11-16 07:30:16,193 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:30:16" (1/1) ... [2024-11-16 07:30:16,193 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:30:16" (1/1) ... [2024-11-16 07:30:16,209 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:30:16" (1/1) ... [2024-11-16 07:30:16,211 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:30:16" (1/1) ... [2024-11-16 07:30:16,215 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:30:16" (1/1) ... [2024-11-16 07:30:16,222 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:30:16" (1/1) ... [2024-11-16 07:30:16,234 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 07:30:16,239 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 07:30:16,239 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 07:30:16,239 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 07:30:16,240 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:30:16" (1/1) ... [2024-11-16 07:30:16,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 07:30:16,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:30:16,280 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 07:30:16,285 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 07:30:16,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 07:30:16,332 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2024-11-16 07:30:16,333 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2024-11-16 07:30:16,333 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2024-11-16 07:30:16,333 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2024-11-16 07:30:16,333 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-11-16 07:30:16,333 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-11-16 07:30:16,333 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-11-16 07:30:16,334 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-11-16 07:30:16,334 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-11-16 07:30:16,334 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-11-16 07:30:16,334 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-16 07:30:16,334 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-16 07:30:16,335 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-16 07:30:16,335 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-16 07:30:16,335 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2024-11-16 07:30:16,335 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2024-11-16 07:30:16,335 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-11-16 07:30:16,336 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-11-16 07:30:16,336 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-11-16 07:30:16,337 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-11-16 07:30:16,337 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-11-16 07:30:16,337 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-11-16 07:30:16,337 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-11-16 07:30:16,337 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-11-16 07:30:16,337 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-11-16 07:30:16,337 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-11-16 07:30:16,337 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-11-16 07:30:16,338 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-11-16 07:30:16,338 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-11-16 07:30:16,338 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-11-16 07:30:16,338 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-11-16 07:30:16,338 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-11-16 07:30:16,338 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-11-16 07:30:16,338 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-11-16 07:30:16,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 07:30:16,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 07:30:16,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-16 07:30:16,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-16 07:30:16,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-16 07:30:16,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-16 07:30:16,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-16 07:30:16,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-16 07:30:16,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-16 07:30:16,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-16 07:30:16,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-16 07:30:16,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-16 07:30:16,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-16 07:30:16,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-16 07:30:16,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-16 07:30:16,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-16 07:30:16,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-16 07:30:16,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-16 07:30:16,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-16 07:30:16,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-16 07:30:16,341 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-11-16 07:30:16,342 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-11-16 07:30:16,342 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-11-16 07:30:16,342 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-11-16 07:30:16,342 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-11-16 07:30:16,342 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-11-16 07:30:16,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 07:30:16,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 07:30:16,342 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-11-16 07:30:16,343 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-11-16 07:30:16,546 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 07:30:16,549 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 07:30:16,622 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1881: #res := ~retValue_acc~17; [2024-11-16 07:30:16,646 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1803: #res := ~retValue_acc~15; [2024-11-16 07:30:16,649 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L372: #res := ~retValue_acc~2; [2024-11-16 07:30:17,003 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1086: #res := ~retValue_acc~10; [2024-11-16 07:30:17,075 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1190: #res := ~retValue_acc~13; [2024-11-16 07:30:17,091 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1842: #res := ~retValue_acc~16; [2024-11-16 07:30:17,179 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L641-1: isEmpty_#res#1 := isEmpty_~retValue_acc~7#1; [2024-11-16 07:30:17,347 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1176-1: stopRequestedAtCurrentFloor_#res#1 := stopRequestedAtCurrentFloor_~retValue_acc~12#1; [2024-11-16 07:30:17,348 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L549-1: getCurrentFloorID_#res#1 := getCurrentFloorID_~retValue_acc~3#1; [2024-11-16 07:30:17,348 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L592-1: buttonForFloorIsPressed_#res#1 := buttonForFloorIsPressed_~retValue_acc~5#1; [2024-11-16 07:30:17,453 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L721-1: anyStopRequested_#res#1 := anyStopRequested_~retValue_acc~8#1; [2024-11-16 07:30:17,453 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L734-1: isIdle_#res#1 := isIdle_~retValue_acc~9#1; [2024-11-16 07:30:17,517 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2232: #res := ~retValue_acc~19; [2024-11-16 07:30:17,596 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L83-1: valid_product_#res#1 := valid_product_~retValue_acc~1#1; [2024-11-16 07:30:17,596 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3360-1: main_#res#1 := main_~retValue_acc~25#1; [2024-11-16 07:30:17,607 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1996: #res := ~retValue_acc~18; [2024-11-16 07:30:17,610 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L558: #res := ~retValue_acc~4; [2024-11-16 07:30:17,615 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2543: #res := ~retValue_acc~20; [2024-11-16 07:30:17,765 INFO L? ?]: Removed 439 outVars from TransFormulas that were not future-live. [2024-11-16 07:30:17,765 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 07:30:17,797 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 07:30:17,797 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 07:30:17,798 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:30:17 BoogieIcfgContainer [2024-11-16 07:30:17,798 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 07:30:17,800 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 07:30:17,800 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 07:30:17,804 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 07:30:17,804 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:30:15" (1/3) ... [2024-11-16 07:30:17,805 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f6534bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:30:17, skipping insertion in model container [2024-11-16 07:30:17,805 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:30:16" (2/3) ... [2024-11-16 07:30:17,805 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f6534bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:30:17, skipping insertion in model container [2024-11-16 07:30:17,805 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:30:17" (3/3) ... [2024-11-16 07:30:17,807 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product25.cil.c [2024-11-16 07:30:17,827 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 07:30:17,827 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 07:30:17,926 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 07:30:17,935 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;@35cbe5e6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 07:30:17,935 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 07:30:17,945 INFO L276 IsEmpty]: Start isEmpty. Operand has 566 states, 455 states have (on average 1.6725274725274726) internal successors, (761), 476 states have internal predecessors, (761), 88 states have call successors, (88), 21 states have call predecessors, (88), 21 states have return successors, (88), 82 states have call predecessors, (88), 88 states have call successors, (88) [2024-11-16 07:30:17,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-16 07:30:17,979 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:30:17,980 INFO L215 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] [2024-11-16 07:30:17,983 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:30:17,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:30:17,991 INFO L85 PathProgramCache]: Analyzing trace with hash 1477450330, now seen corresponding path program 1 times [2024-11-16 07:30:18,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:30:18,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088672084] [2024-11-16 07:30:18,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:30:18,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:30:18,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:30:18,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 07:30:18,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:30:18,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:30:18,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:30:18,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 07:30:18,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:30:19,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-16 07:30:19,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:30:19,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:30:19,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:30:19,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:30:19,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:30:19,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 07:30:19,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:30:19,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 07:30:19,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:30:19,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 07:30:19,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:30:19,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 07:30:19,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:30:19,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088672084] [2024-11-16 07:30:19,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088672084] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:30:19,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:30:19,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 07:30:19,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869412705] [2024-11-16 07:30:19,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:30:19,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 07:30:19,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:30:19,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 07:30:19,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-16 07:30:19,550 INFO L87 Difference]: Start difference. First operand has 566 states, 455 states have (on average 1.6725274725274726) internal successors, (761), 476 states have internal predecessors, (761), 88 states have call successors, (88), 21 states have call predecessors, (88), 21 states have return successors, (88), 82 states have call predecessors, (88), 88 states have call successors, (88) Second operand has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 6 states have internal predecessors, (60), 2 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-16 07:30:26,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:30:26,441 INFO L93 Difference]: Finished difference Result 1383 states and 2325 transitions. [2024-11-16 07:30:26,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 07:30:26,444 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 6 states have internal predecessors, (60), 2 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 79 [2024-11-16 07:30:26,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:30:26,478 INFO L225 Difference]: With dead ends: 1383 [2024-11-16 07:30:26,479 INFO L226 Difference]: Without dead ends: 829 [2024-11-16 07:30:26,491 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-11-16 07:30:26,495 INFO L432 NwaCegarLoop]: 498 mSDtfsCounter, 1008 mSDsluCounter, 2426 mSDsCounter, 0 mSdLazyCounter, 4584 mSolverCounterSat, 200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1080 SdHoareTripleChecker+Valid, 2924 SdHoareTripleChecker+Invalid, 4784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 200 IncrementalHoareTripleChecker+Valid, 4584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-16 07:30:26,498 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1080 Valid, 2924 Invalid, 4784 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [200 Valid, 4584 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-11-16 07:30:26,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 829 states. [2024-11-16 07:30:26,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 829 to 559. [2024-11-16 07:30:26,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 450 states have (on average 1.6666666666666667) internal successors, (750), 469 states have internal predecessors, (750), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2024-11-16 07:30:26,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 921 transitions. [2024-11-16 07:30:26,742 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 921 transitions. Word has length 79 [2024-11-16 07:30:26,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:30:26,744 INFO L471 AbstractCegarLoop]: Abstraction has 559 states and 921 transitions. [2024-11-16 07:30:26,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 6 states have internal predecessors, (60), 2 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-16 07:30:26,744 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 921 transitions. [2024-11-16 07:30:26,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-16 07:30:26,752 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:30:26,752 INFO L215 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] [2024-11-16 07:30:26,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 07:30:26,753 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:30:26,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:30:26,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1902950890, now seen corresponding path program 1 times [2024-11-16 07:30:26,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:30:26,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514912541] [2024-11-16 07:30:26,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:30:26,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:30:26,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:30:27,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 07:30:27,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:30:27,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:30:27,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:30:27,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 07:30:27,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:30:27,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 07:30:27,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:30:27,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:30:27,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:30:27,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:30:27,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:30:27,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-16 07:30:27,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:30:27,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 07:30:27,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:30:27,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 07:30:27,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:30:27,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 07:30:27,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:30:27,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514912541] [2024-11-16 07:30:27,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514912541] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:30:27,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:30:27,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-16 07:30:27,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229406470] [2024-11-16 07:30:27,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:30:27,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 07:30:27,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:30:27,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 07:30:27,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-16 07:30:27,523 INFO L87 Difference]: Start difference. First operand 559 states and 921 transitions. Second operand has 10 states, 10 states have (on average 6.7) internal successors, (67), 6 states have internal predecessors, (67), 2 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-16 07:30:33,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:30:33,945 INFO L93 Difference]: Finished difference Result 1376 states and 2299 transitions. [2024-11-16 07:30:33,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-16 07:30:33,946 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.7) internal successors, (67), 6 states have internal predecessors, (67), 2 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 86 [2024-11-16 07:30:33,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:30:33,955 INFO L225 Difference]: With dead ends: 1376 [2024-11-16 07:30:33,955 INFO L226 Difference]: Without dead ends: 835 [2024-11-16 07:30:33,959 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2024-11-16 07:30:33,960 INFO L432 NwaCegarLoop]: 488 mSDtfsCounter, 1008 mSDsluCounter, 2853 mSDsCounter, 0 mSdLazyCounter, 5383 mSolverCounterSat, 210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1082 SdHoareTripleChecker+Valid, 3341 SdHoareTripleChecker+Invalid, 5593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 210 IncrementalHoareTripleChecker+Valid, 5383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-16 07:30:33,960 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1082 Valid, 3341 Invalid, 5593 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [210 Valid, 5383 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-16 07:30:33,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2024-11-16 07:30:34,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 563. [2024-11-16 07:30:34,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 453 states have (on average 1.6600441501103753) internal successors, (752), 472 states have internal predecessors, (752), 88 states have call successors, (88), 21 states have call predecessors, (88), 21 states have return successors, (85), 82 states have call predecessors, (85), 83 states have call successors, (85) [2024-11-16 07:30:34,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 925 transitions. [2024-11-16 07:30:34,086 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 925 transitions. Word has length 86 [2024-11-16 07:30:34,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:30:34,087 INFO L471 AbstractCegarLoop]: Abstraction has 563 states and 925 transitions. [2024-11-16 07:30:34,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.7) internal successors, (67), 6 states have internal predecessors, (67), 2 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-16 07:30:34,087 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 925 transitions. [2024-11-16 07:30:34,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-16 07:30:34,091 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:30:34,091 INFO L215 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] [2024-11-16 07:30:34,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 07:30:34,092 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:30:34,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:30:34,092 INFO L85 PathProgramCache]: Analyzing trace with hash -795795422, now seen corresponding path program 1 times [2024-11-16 07:30:34,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:30:34,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429736511] [2024-11-16 07:30:34,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:30:34,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:30:34,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:30:34,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 07:30:34,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:30:34,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:30:34,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:30:34,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-16 07:30:34,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:30:34,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-16 07:30:34,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:30:34,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:30:34,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:30:34,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:30:34,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:30:34,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-16 07:30:34,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:30:34,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-16 07:30:34,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:30:34,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 07:30:34,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:30:34,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 07:30:34,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:30:34,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429736511] [2024-11-16 07:30:34,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429736511] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:30:34,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:30:34,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-16 07:30:34,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632145414] [2024-11-16 07:30:34,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:30:34,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-16 07:30:34,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:30:34,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-16 07:30:34,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-16 07:30:34,785 INFO L87 Difference]: Start difference. First operand 563 states and 925 transitions. Second operand has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 8 states have internal predecessors, (73), 3 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-16 07:30:46,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:30:46,772 INFO L93 Difference]: Finished difference Result 2618 states and 4521 transitions. [2024-11-16 07:30:46,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-16 07:30:46,773 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 8 states have internal predecessors, (73), 3 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 92 [2024-11-16 07:30:46,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:30:46,789 INFO L225 Difference]: With dead ends: 2618 [2024-11-16 07:30:46,789 INFO L226 Difference]: Without dead ends: 2073 [2024-11-16 07:30:46,795 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=258, Invalid=672, Unknown=0, NotChecked=0, Total=930 [2024-11-16 07:30:46,796 INFO L432 NwaCegarLoop]: 609 mSDtfsCounter, 3866 mSDsluCounter, 3852 mSDsCounter, 0 mSdLazyCounter, 6775 mSolverCounterSat, 1143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3944 SdHoareTripleChecker+Valid, 4461 SdHoareTripleChecker+Invalid, 7918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1143 IncrementalHoareTripleChecker+Valid, 6775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2024-11-16 07:30:46,796 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3944 Valid, 4461 Invalid, 7918 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1143 Valid, 6775 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2024-11-16 07:30:46,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2073 states. [2024-11-16 07:30:47,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2073 to 1489. [2024-11-16 07:30:47,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1489 states, 1188 states have (on average 1.6195286195286196) internal successors, (1924), 1235 states have internal predecessors, (1924), 241 states have call successors, (241), 56 states have call predecessors, (241), 59 states have return successors, (275), 233 states have call predecessors, (275), 236 states have call successors, (275) [2024-11-16 07:30:47,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1489 states to 1489 states and 2440 transitions. [2024-11-16 07:30:47,091 INFO L78 Accepts]: Start accepts. Automaton has 1489 states and 2440 transitions. Word has length 92 [2024-11-16 07:30:47,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:30:47,092 INFO L471 AbstractCegarLoop]: Abstraction has 1489 states and 2440 transitions. [2024-11-16 07:30:47,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 8 states have internal predecessors, (73), 3 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-16 07:30:47,092 INFO L276 IsEmpty]: Start isEmpty. Operand 1489 states and 2440 transitions. [2024-11-16 07:30:47,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-16 07:30:47,096 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:30:47,096 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:30:47,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 07:30:47,097 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:30:47,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:30:47,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1962206912, now seen corresponding path program 1 times [2024-11-16 07:30:47,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:30:47,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456068046] [2024-11-16 07:30:47,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:30:47,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:30:47,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:30:47,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 07:30:47,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:30:47,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:30:47,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:30:47,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 07:30:47,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:30:47,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 07:30:47,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:30:47,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:30:47,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:30:47,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:30:47,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:30:47,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-16 07:30:47,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:30:47,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 07:30:47,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:30:47,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 07:30:47,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:30:47,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 07:30:47,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:30:47,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-16 07:30:47,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:30:47,685 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-16 07:30:47,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:30:47,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456068046] [2024-11-16 07:30:47,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456068046] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:30:47,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:30:47,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 07:30:47,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529202228] [2024-11-16 07:30:47,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:30:47,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 07:30:47,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:30:47,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 07:30:47,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-16 07:30:47,692 INFO L87 Difference]: Start difference. First operand 1489 states and 2440 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-16 07:30:52,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:30:52,087 INFO L93 Difference]: Finished difference Result 3501 states and 5854 transitions. [2024-11-16 07:30:52,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 07:30:52,088 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (12), 5 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 102 [2024-11-16 07:30:52,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:30:52,105 INFO L225 Difference]: With dead ends: 3501 [2024-11-16 07:30:52,105 INFO L226 Difference]: Without dead ends: 2030 [2024-11-16 07:30:52,114 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-16 07:30:52,115 INFO L432 NwaCegarLoop]: 486 mSDtfsCounter, 999 mSDsluCounter, 1426 mSDsCounter, 0 mSdLazyCounter, 2968 mSolverCounterSat, 201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1071 SdHoareTripleChecker+Valid, 1912 SdHoareTripleChecker+Invalid, 3169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 201 IncrementalHoareTripleChecker+Valid, 2968 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-16 07:30:52,115 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1071 Valid, 1912 Invalid, 3169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [201 Valid, 2968 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-16 07:30:52,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2030 states. [2024-11-16 07:30:52,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2030 to 1489. [2024-11-16 07:30:52,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1489 states, 1188 states have (on average 1.6186868686868687) internal successors, (1923), 1235 states have internal predecessors, (1923), 241 states have call successors, (241), 56 states have call predecessors, (241), 59 states have return successors, (275), 233 states have call predecessors, (275), 236 states have call successors, (275) [2024-11-16 07:30:52,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1489 states to 1489 states and 2439 transitions. [2024-11-16 07:30:52,410 INFO L78 Accepts]: Start accepts. Automaton has 1489 states and 2439 transitions. Word has length 102 [2024-11-16 07:30:52,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:30:52,411 INFO L471 AbstractCegarLoop]: Abstraction has 1489 states and 2439 transitions. [2024-11-16 07:30:52,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-16 07:30:52,411 INFO L276 IsEmpty]: Start isEmpty. Operand 1489 states and 2439 transitions. [2024-11-16 07:30:52,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-16 07:30:52,415 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:30:52,415 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:30:52,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 07:30:52,415 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:30:52,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:30:52,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1628700928, now seen corresponding path program 1 times [2024-11-16 07:30:52,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:30:52,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209037251] [2024-11-16 07:30:52,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:30:52,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:30:52,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:30:52,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 07:30:52,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:30:52,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:30:52,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:30:52,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 07:30:52,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:30:52,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-16 07:30:52,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:30:52,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:30:53,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:30:53,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:30:53,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:30:53,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-16 07:30:53,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:30:53,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 07:30:53,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:30:53,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 07:30:53,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:30:53,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 07:30:53,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:30:53,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-16 07:30:53,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:30:53,084 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-16 07:30:53,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:30:53,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209037251] [2024-11-16 07:30:53,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209037251] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:30:53,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:30:53,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 07:30:53,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184562966] [2024-11-16 07:30:53,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:30:53,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 07:30:53,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:30:53,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 07:30:53,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-16 07:30:53,089 INFO L87 Difference]: Start difference. First operand 1489 states and 2439 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-16 07:30:56,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:30:56,958 INFO L93 Difference]: Finished difference Result 3501 states and 5853 transitions. [2024-11-16 07:30:56,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 07:30:56,959 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (12), 5 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 103 [2024-11-16 07:30:56,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:30:56,973 INFO L225 Difference]: With dead ends: 3501 [2024-11-16 07:30:56,974 INFO L226 Difference]: Without dead ends: 2030 [2024-11-16 07:30:56,981 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-16 07:30:56,981 INFO L432 NwaCegarLoop]: 494 mSDtfsCounter, 1860 mSDsluCounter, 1299 mSDsCounter, 0 mSdLazyCounter, 2729 mSolverCounterSat, 463 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1932 SdHoareTripleChecker+Valid, 1793 SdHoareTripleChecker+Invalid, 3192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 463 IncrementalHoareTripleChecker+Valid, 2729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-16 07:30:56,982 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1932 Valid, 1793 Invalid, 3192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [463 Valid, 2729 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-16 07:30:56,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2030 states. [2024-11-16 07:30:57,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2030 to 1489. [2024-11-16 07:30:57,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1489 states, 1188 states have (on average 1.6178451178451179) internal successors, (1922), 1235 states have internal predecessors, (1922), 241 states have call successors, (241), 56 states have call predecessors, (241), 59 states have return successors, (275), 233 states have call predecessors, (275), 236 states have call successors, (275) [2024-11-16 07:30:57,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1489 states to 1489 states and 2438 transitions. [2024-11-16 07:30:57,300 INFO L78 Accepts]: Start accepts. Automaton has 1489 states and 2438 transitions. Word has length 103 [2024-11-16 07:30:57,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:30:57,301 INFO L471 AbstractCegarLoop]: Abstraction has 1489 states and 2438 transitions. [2024-11-16 07:30:57,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-16 07:30:57,301 INFO L276 IsEmpty]: Start isEmpty. Operand 1489 states and 2438 transitions. [2024-11-16 07:30:57,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-16 07:30:57,305 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:30:57,306 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:30:57,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 07:30:57,306 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:30:57,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:30:57,309 INFO L85 PathProgramCache]: Analyzing trace with hash 1571344963, now seen corresponding path program 1 times [2024-11-16 07:30:57,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:30:57,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465146799] [2024-11-16 07:30:57,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:30:57,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:30:57,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:30:57,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 07:30:57,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:30:57,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:30:57,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:30:57,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:30:57,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:30:57,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:30:57,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:30:57,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:30:57,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:30:58,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:30:58,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:30:58,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-16 07:30:58,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:30:58,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 07:30:58,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:30:58,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 07:30:58,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:30:58,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 07:30:58,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:30:58,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-16 07:30:58,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:30:58,077 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-16 07:30:58,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:30:58,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465146799] [2024-11-16 07:30:58,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465146799] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:30:58,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:30:58,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-16 07:30:58,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484553795] [2024-11-16 07:30:58,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:30:58,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-16 07:30:58,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:30:58,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-16 07:30:58,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2024-11-16 07:30:58,079 INFO L87 Difference]: Start difference. First operand 1489 states and 2438 transitions. Second operand has 14 states, 13 states have (on average 6.230769230769231) internal successors, (81), 10 states have internal predecessors, (81), 3 states have call successors, (12), 5 states have call predecessors, (12), 5 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-16 07:31:05,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:31:05,667 INFO L93 Difference]: Finished difference Result 3603 states and 6112 transitions. [2024-11-16 07:31:05,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-16 07:31:05,668 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.230769230769231) internal successors, (81), 10 states have internal predecessors, (81), 3 states have call successors, (12), 5 states have call predecessors, (12), 5 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 104 [2024-11-16 07:31:05,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:31:05,684 INFO L225 Difference]: With dead ends: 3603 [2024-11-16 07:31:05,684 INFO L226 Difference]: Without dead ends: 2172 [2024-11-16 07:31:05,691 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=103, Invalid=547, Unknown=0, NotChecked=0, Total=650 [2024-11-16 07:31:05,693 INFO L432 NwaCegarLoop]: 545 mSDtfsCounter, 1623 mSDsluCounter, 5166 mSDsCounter, 0 mSdLazyCounter, 8523 mSolverCounterSat, 384 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1694 SdHoareTripleChecker+Valid, 5711 SdHoareTripleChecker+Invalid, 8907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 384 IncrementalHoareTripleChecker+Valid, 8523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-11-16 07:31:05,693 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1694 Valid, 5711 Invalid, 8907 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [384 Valid, 8523 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2024-11-16 07:31:05,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2172 states. [2024-11-16 07:31:05,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2172 to 1509. [2024-11-16 07:31:05,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1509 states, 1198 states have (on average 1.6085141903171953) internal successors, (1927), 1252 states have internal predecessors, (1927), 244 states have call successors, (244), 56 states have call predecessors, (244), 66 states have return successors, (307), 236 states have call predecessors, (307), 239 states have call successors, (307) [2024-11-16 07:31:05,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1509 states to 1509 states and 2478 transitions. [2024-11-16 07:31:05,955 INFO L78 Accepts]: Start accepts. Automaton has 1509 states and 2478 transitions. Word has length 104 [2024-11-16 07:31:05,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:31:05,955 INFO L471 AbstractCegarLoop]: Abstraction has 1509 states and 2478 transitions. [2024-11-16 07:31:05,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.230769230769231) internal successors, (81), 10 states have internal predecessors, (81), 3 states have call successors, (12), 5 states have call predecessors, (12), 5 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-16 07:31:05,956 INFO L276 IsEmpty]: Start isEmpty. Operand 1509 states and 2478 transitions. [2024-11-16 07:31:05,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-16 07:31:05,959 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:31:05,959 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:31:05,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 07:31:05,960 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:31:05,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:31:05,960 INFO L85 PathProgramCache]: Analyzing trace with hash -676760337, now seen corresponding path program 1 times [2024-11-16 07:31:05,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:31:05,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537090862] [2024-11-16 07:31:05,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:31:05,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:31:05,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:06,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 07:31:06,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:06,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:31:06,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:06,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:31:06,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:06,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 07:31:06,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:06,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:31:06,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:06,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:31:06,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:06,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-16 07:31:06,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:06,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 07:31:06,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:06,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 07:31:06,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:06,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 07:31:06,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:06,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-16 07:31:06,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:06,605 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-16 07:31:06,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:31:06,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537090862] [2024-11-16 07:31:06,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537090862] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:31:06,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:31:06,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 07:31:06,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15794132] [2024-11-16 07:31:06,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:31:06,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 07:31:06,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:31:06,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 07:31:06,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-16 07:31:06,608 INFO L87 Difference]: Start difference. First operand 1509 states and 2478 transitions. Second operand has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 6 states have internal predecessors, (78), 2 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-16 07:31:11,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:31:11,279 INFO L93 Difference]: Finished difference Result 3519 states and 5917 transitions. [2024-11-16 07:31:11,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-16 07:31:11,280 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 6 states have internal predecessors, (78), 2 states have call successors, (12), 5 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 105 [2024-11-16 07:31:11,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:31:11,297 INFO L225 Difference]: With dead ends: 3519 [2024-11-16 07:31:11,298 INFO L226 Difference]: Without dead ends: 2068 [2024-11-16 07:31:11,304 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-16 07:31:11,306 INFO L432 NwaCegarLoop]: 494 mSDtfsCounter, 1065 mSDsluCounter, 2388 mSDsCounter, 0 mSdLazyCounter, 4524 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1137 SdHoareTripleChecker+Valid, 2882 SdHoareTripleChecker+Invalid, 4726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 4524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-16 07:31:11,306 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1137 Valid, 2882 Invalid, 4726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 4524 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-16 07:31:11,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2068 states. [2024-11-16 07:31:11,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2068 to 1509. [2024-11-16 07:31:11,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1509 states, 1198 states have (on average 1.6043405676126878) internal successors, (1922), 1252 states have internal predecessors, (1922), 244 states have call successors, (244), 56 states have call predecessors, (244), 66 states have return successors, (307), 236 states have call predecessors, (307), 239 states have call successors, (307) [2024-11-16 07:31:11,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1509 states to 1509 states and 2473 transitions. [2024-11-16 07:31:11,630 INFO L78 Accepts]: Start accepts. Automaton has 1509 states and 2473 transitions. Word has length 105 [2024-11-16 07:31:11,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:31:11,630 INFO L471 AbstractCegarLoop]: Abstraction has 1509 states and 2473 transitions. [2024-11-16 07:31:11,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 6 states have internal predecessors, (78), 2 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-16 07:31:11,631 INFO L276 IsEmpty]: Start isEmpty. Operand 1509 states and 2473 transitions. [2024-11-16 07:31:11,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-16 07:31:11,634 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:31:11,634 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:31:11,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 07:31:11,634 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:31:11,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:31:11,635 INFO L85 PathProgramCache]: Analyzing trace with hash 21386241, now seen corresponding path program 1 times [2024-11-16 07:31:11,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:31:11,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061931518] [2024-11-16 07:31:11,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:31:11,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:31:11,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:11,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 07:31:11,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:11,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:31:11,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:11,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:31:11,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:12,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-16 07:31:12,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:12,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:31:12,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:12,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:31:12,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:12,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-16 07:31:12,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:12,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 07:31:12,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:12,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 07:31:12,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:12,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 07:31:12,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:12,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-16 07:31:12,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:12,285 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-16 07:31:12,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:31:12,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061931518] [2024-11-16 07:31:12,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061931518] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:31:12,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:31:12,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 07:31:12,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384833574] [2024-11-16 07:31:12,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:31:12,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 07:31:12,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:31:12,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 07:31:12,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-16 07:31:12,287 INFO L87 Difference]: Start difference. First operand 1509 states and 2473 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 6 states have internal predecessors, (79), 2 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-16 07:31:16,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:31:16,722 INFO L93 Difference]: Finished difference Result 3519 states and 5912 transitions. [2024-11-16 07:31:16,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-16 07:31:16,723 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 6 states have internal predecessors, (79), 2 states have call successors, (12), 5 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 106 [2024-11-16 07:31:16,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:31:16,739 INFO L225 Difference]: With dead ends: 3519 [2024-11-16 07:31:16,739 INFO L226 Difference]: Without dead ends: 2068 [2024-11-16 07:31:16,746 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-16 07:31:16,747 INFO L432 NwaCegarLoop]: 482 mSDtfsCounter, 1506 mSDsluCounter, 2281 mSDsCounter, 0 mSdLazyCounter, 4301 mSolverCounterSat, 344 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1578 SdHoareTripleChecker+Valid, 2763 SdHoareTripleChecker+Invalid, 4645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 344 IncrementalHoareTripleChecker+Valid, 4301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-16 07:31:16,747 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1578 Valid, 2763 Invalid, 4645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [344 Valid, 4301 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-16 07:31:16,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2068 states. [2024-11-16 07:31:17,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2068 to 1509. [2024-11-16 07:31:17,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1509 states, 1198 states have (on average 1.6001669449081803) internal successors, (1917), 1252 states have internal predecessors, (1917), 244 states have call successors, (244), 56 states have call predecessors, (244), 66 states have return successors, (307), 236 states have call predecessors, (307), 239 states have call successors, (307) [2024-11-16 07:31:17,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1509 states to 1509 states and 2468 transitions. [2024-11-16 07:31:17,092 INFO L78 Accepts]: Start accepts. Automaton has 1509 states and 2468 transitions. Word has length 106 [2024-11-16 07:31:17,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:31:17,092 INFO L471 AbstractCegarLoop]: Abstraction has 1509 states and 2468 transitions. [2024-11-16 07:31:17,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 6 states have internal predecessors, (79), 2 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-16 07:31:17,093 INFO L276 IsEmpty]: Start isEmpty. Operand 1509 states and 2468 transitions. [2024-11-16 07:31:17,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-16 07:31:17,096 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:31:17,096 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:31:17,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 07:31:17,096 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:31:17,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:31:17,097 INFO L85 PathProgramCache]: Analyzing trace with hash 675680524, now seen corresponding path program 1 times [2024-11-16 07:31:17,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:31:17,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918993821] [2024-11-16 07:31:17,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:31:17,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:31:17,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:17,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 07:31:17,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:17,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:31:17,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:17,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:31:17,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:17,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-16 07:31:17,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:17,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:31:17,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:17,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:31:17,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:17,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-16 07:31:17,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:17,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 07:31:17,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:17,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 07:31:17,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:17,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 07:31:17,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:17,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-16 07:31:17,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:17,753 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-16 07:31:17,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:31:17,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918993821] [2024-11-16 07:31:17,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918993821] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:31:17,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:31:17,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 07:31:17,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353832448] [2024-11-16 07:31:17,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:31:17,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 07:31:17,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:31:17,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 07:31:17,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-16 07:31:17,756 INFO L87 Difference]: Start difference. First operand 1509 states and 2468 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 6 states have internal predecessors, (80), 2 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-16 07:31:22,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:31:22,307 INFO L93 Difference]: Finished difference Result 3519 states and 5907 transitions. [2024-11-16 07:31:22,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-16 07:31:22,308 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 6 states have internal predecessors, (80), 2 states have call successors, (12), 5 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 107 [2024-11-16 07:31:22,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:31:22,321 INFO L225 Difference]: With dead ends: 3519 [2024-11-16 07:31:22,322 INFO L226 Difference]: Without dead ends: 2068 [2024-11-16 07:31:22,328 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-16 07:31:22,329 INFO L432 NwaCegarLoop]: 489 mSDtfsCounter, 1060 mSDsluCounter, 2376 mSDsCounter, 0 mSdLazyCounter, 4420 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1132 SdHoareTripleChecker+Valid, 2865 SdHoareTripleChecker+Invalid, 4626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 4420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-16 07:31:22,329 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1132 Valid, 2865 Invalid, 4626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 4420 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-16 07:31:22,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2068 states. [2024-11-16 07:31:22,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2068 to 1509. [2024-11-16 07:31:22,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1509 states, 1198 states have (on average 1.5959933222036728) internal successors, (1912), 1252 states have internal predecessors, (1912), 244 states have call successors, (244), 56 states have call predecessors, (244), 66 states have return successors, (307), 236 states have call predecessors, (307), 239 states have call successors, (307) [2024-11-16 07:31:22,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1509 states to 1509 states and 2463 transitions. [2024-11-16 07:31:22,723 INFO L78 Accepts]: Start accepts. Automaton has 1509 states and 2463 transitions. Word has length 107 [2024-11-16 07:31:22,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:31:22,723 INFO L471 AbstractCegarLoop]: Abstraction has 1509 states and 2463 transitions. [2024-11-16 07:31:22,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 6 states have internal predecessors, (80), 2 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-16 07:31:22,724 INFO L276 IsEmpty]: Start isEmpty. Operand 1509 states and 2463 transitions. [2024-11-16 07:31:22,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-16 07:31:22,727 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:31:22,727 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:31:22,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 07:31:22,727 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:31:22,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:31:22,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1103620344, now seen corresponding path program 1 times [2024-11-16 07:31:22,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:31:22,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146478147] [2024-11-16 07:31:22,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:31:22,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:31:22,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:22,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 07:31:22,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:22,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:31:22,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:22,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:31:22,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:23,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-16 07:31:23,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:23,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:31:23,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:23,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:31:23,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:23,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-16 07:31:23,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:23,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 07:31:23,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:23,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 07:31:23,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:23,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 07:31:23,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:23,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-16 07:31:23,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:23,333 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-16 07:31:23,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:31:23,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146478147] [2024-11-16 07:31:23,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146478147] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:31:23,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:31:23,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 07:31:23,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213174355] [2024-11-16 07:31:23,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:31:23,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 07:31:23,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:31:23,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 07:31:23,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-16 07:31:23,335 INFO L87 Difference]: Start difference. First operand 1509 states and 2463 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-16 07:31:27,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:31:27,607 INFO L93 Difference]: Finished difference Result 3505 states and 5880 transitions. [2024-11-16 07:31:27,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 07:31:27,607 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (12), 5 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 107 [2024-11-16 07:31:27,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:31:27,621 INFO L225 Difference]: With dead ends: 3505 [2024-11-16 07:31:27,621 INFO L226 Difference]: Without dead ends: 2060 [2024-11-16 07:31:27,627 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-11-16 07:31:27,628 INFO L432 NwaCegarLoop]: 487 mSDtfsCounter, 1023 mSDsluCounter, 1424 mSDsCounter, 0 mSdLazyCounter, 2791 mSolverCounterSat, 203 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1095 SdHoareTripleChecker+Valid, 1911 SdHoareTripleChecker+Invalid, 2994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 203 IncrementalHoareTripleChecker+Valid, 2791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-16 07:31:27,628 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1095 Valid, 1911 Invalid, 2994 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [203 Valid, 2791 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-16 07:31:27,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2060 states. [2024-11-16 07:31:27,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2060 to 1511. [2024-11-16 07:31:27,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1511 states, 1200 states have (on average 1.595) internal successors, (1914), 1254 states have internal predecessors, (1914), 244 states have call successors, (244), 56 states have call predecessors, (244), 66 states have return successors, (307), 236 states have call predecessors, (307), 239 states have call successors, (307) [2024-11-16 07:31:27,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1511 states to 1511 states and 2465 transitions. [2024-11-16 07:31:27,915 INFO L78 Accepts]: Start accepts. Automaton has 1511 states and 2465 transitions. Word has length 107 [2024-11-16 07:31:27,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:31:27,915 INFO L471 AbstractCegarLoop]: Abstraction has 1511 states and 2465 transitions. [2024-11-16 07:31:27,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-16 07:31:27,915 INFO L276 IsEmpty]: Start isEmpty. Operand 1511 states and 2465 transitions. [2024-11-16 07:31:27,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-16 07:31:27,918 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:31:27,919 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:31:27,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 07:31:27,919 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:31:27,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:31:27,919 INFO L85 PathProgramCache]: Analyzing trace with hash -29446338, now seen corresponding path program 1 times [2024-11-16 07:31:27,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:31:27,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382904846] [2024-11-16 07:31:27,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:31:27,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:31:27,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:28,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 07:31:28,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:28,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:31:28,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:28,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:31:28,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:28,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 07:31:28,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:28,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:31:28,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:28,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:31:28,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:28,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-16 07:31:28,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:28,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 07:31:28,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:28,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 07:31:28,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:28,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 07:31:28,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:28,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-16 07:31:28,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:28,748 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-16 07:31:28,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:31:28,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382904846] [2024-11-16 07:31:28,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382904846] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:31:28,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:31:28,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-16 07:31:28,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770766845] [2024-11-16 07:31:28,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:31:28,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-16 07:31:28,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:31:28,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-16 07:31:28,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-16 07:31:28,752 INFO L87 Difference]: Start difference. First operand 1511 states and 2465 transitions. Second operand has 12 states, 11 states have (on average 7.363636363636363) internal successors, (81), 8 states have internal predecessors, (81), 3 states have call successors, (12), 5 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11)