/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/product-lines/elevator_spec3_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 05:35:24,785 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 05:35:24,844 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-25 05:35:24,847 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 05:35:24,848 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 05:35:24,874 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 05:35:24,874 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 05:35:24,875 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 05:35:24,875 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 05:35:24,875 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 05:35:24,876 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 05:35:24,892 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 05:35:24,892 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 05:35:24,893 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 05:35:24,893 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 05:35:24,893 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 05:35:24,894 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 05:35:24,894 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 05:35:24,894 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 05:35:24,894 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 05:35:24,894 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 05:35:24,895 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 05:35:24,895 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 05:35:24,895 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 05:35:24,895 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 05:35:24,896 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 05:35:24,896 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 05:35:24,896 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 05:35:24,896 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 05:35:24,896 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 05:35:24,897 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 05:35:24,897 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 05:35:24,897 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 05:35:24,897 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 05:35:24,897 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:35:24,898 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 05:35:24,898 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 05:35:24,898 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 05:35:24,898 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 05:35:24,898 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 05:35:24,898 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 05:35:24,901 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 05:35:24,901 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 05:35:24,901 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 05:35:24,901 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 05:35:24,901 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 05:35:24,902 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 05:35:25,080 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 05:35:25,096 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 05:35:25,098 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 05:35:25,099 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 05:35:25,101 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 05:35:25,103 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec3_product32.cil.c [2023-12-25 05:35:26,132 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 05:35:26,371 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 05:35:26,372 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product32.cil.c [2023-12-25 05:35:26,394 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4771e6585/f5e53138be164586b807fadc3d883a60/FLAGf6b332fd1 [2023-12-25 05:35:26,405 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4771e6585/f5e53138be164586b807fadc3d883a60 [2023-12-25 05:35:26,407 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 05:35:26,408 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 05:35:26,410 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 05:35:26,410 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 05:35:26,414 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 05:35:26,414 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:35:26" (1/1) ... [2023-12-25 05:35:26,415 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7789e3a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:35:26, skipping insertion in model container [2023-12-25 05:35:26,415 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:35:26" (1/1) ... [2023-12-25 05:35:26,475 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:35:26,666 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product32.cil.c[3233,3246] [2023-12-25 05:35:26,954 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:35:26,975 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-25 05:35:27,001 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:35:27,019 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product32.cil.c[3233,3246] [2023-12-25 05:35:27,106 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:35:27,110 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 05:35:27,117 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [48] [2023-12-25 05:35:27,125 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [151] [2023-12-25 05:35:27,126 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [160] [2023-12-25 05:35:27,126 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [198] [2023-12-25 05:35:27,126 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [564] [2023-12-25 05:35:27,126 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [753] [2023-12-25 05:35:27,126 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [873] [2023-12-25 05:35:27,126 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1540] [2023-12-25 05:35:27,126 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1558] [2023-12-25 05:35:27,126 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1907] [2023-12-25 05:35:27,130 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product32.cil.c[3233,3246] [2023-12-25 05:35:27,192 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:35:27,218 INFO L206 MainTranslator]: Completed translation [2023-12-25 05:35:27,218 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:35:27 WrapperNode [2023-12-25 05:35:27,218 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 05:35:27,220 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 05:35:27,220 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 05:35:27,220 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 05:35:27,224 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:35:27" (1/1) ... [2023-12-25 05:35:27,256 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:35:27" (1/1) ... [2023-12-25 05:35:27,308 INFO L138 Inliner]: procedures = 99, calls = 361, calls flagged for inlining = 29, calls inlined = 25, statements flattened = 943 [2023-12-25 05:35:27,309 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 05:35:27,309 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 05:35:27,309 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 05:35:27,309 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 05:35:27,318 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:35:27" (1/1) ... [2023-12-25 05:35:27,318 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:35:27" (1/1) ... [2023-12-25 05:35:27,322 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:35:27" (1/1) ... [2023-12-25 05:35:27,342 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2023-12-25 05:35:27,343 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:35:27" (1/1) ... [2023-12-25 05:35:27,343 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:35:27" (1/1) ... [2023-12-25 05:35:27,358 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:35:27" (1/1) ... [2023-12-25 05:35:27,366 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:35:27" (1/1) ... [2023-12-25 05:35:27,372 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:35:27" (1/1) ... [2023-12-25 05:35:27,376 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:35:27" (1/1) ... [2023-12-25 05:35:27,387 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 05:35:27,388 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 05:35:27,388 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 05:35:27,388 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 05:35:27,389 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:35:27" (1/1) ... [2023-12-25 05:35:27,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:35:27,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 05:35:27,443 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) [2023-12-25 05:35:27,504 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 [2023-12-25 05:35:27,522 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2023-12-25 05:35:27,523 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2023-12-25 05:35:27,523 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-12-25 05:35:27,523 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-12-25 05:35:27,523 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-12-25 05:35:27,523 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-12-25 05:35:27,523 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2023-12-25 05:35:27,523 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2023-12-25 05:35:27,523 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-25 05:35:27,523 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-25 05:35:27,523 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-12-25 05:35:27,523 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-12-25 05:35:27,523 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-12-25 05:35:27,523 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-12-25 05:35:27,524 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2023-12-25 05:35:27,524 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2023-12-25 05:35:27,524 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2023-12-25 05:35:27,524 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2023-12-25 05:35:27,524 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-12-25 05:35:27,524 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-12-25 05:35:27,524 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-12-25 05:35:27,524 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-12-25 05:35:27,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 05:35:27,524 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2023-12-25 05:35:27,524 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2023-12-25 05:35:27,524 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-12-25 05:35:27,524 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-12-25 05:35:27,525 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2023-12-25 05:35:27,525 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2023-12-25 05:35:27,525 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2023-12-25 05:35:27,525 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2023-12-25 05:35:27,525 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-12-25 05:35:27,525 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-12-25 05:35:27,525 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-25 05:35:27,525 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-25 05:35:27,525 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-12-25 05:35:27,525 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-12-25 05:35:27,525 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-12-25 05:35:27,525 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-12-25 05:35:27,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 05:35:27,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-25 05:35:27,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-25 05:35:27,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-25 05:35:27,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-12-25 05:35:27,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2023-12-25 05:35:27,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2023-12-25 05:35:27,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2023-12-25 05:35:27,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2023-12-25 05:35:27,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2023-12-25 05:35:27,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2023-12-25 05:35:27,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2023-12-25 05:35:27,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12 [2023-12-25 05:35:27,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#13 [2023-12-25 05:35:27,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#14 [2023-12-25 05:35:27,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#15 [2023-12-25 05:35:27,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#16 [2023-12-25 05:35:27,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#17 [2023-12-25 05:35:27,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#18 [2023-12-25 05:35:27,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#19 [2023-12-25 05:35:27,527 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2023-12-25 05:35:27,527 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2023-12-25 05:35:27,527 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-12-25 05:35:27,527 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-12-25 05:35:27,527 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2023-12-25 05:35:27,527 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2023-12-25 05:35:27,527 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-12-25 05:35:27,527 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-12-25 05:35:27,527 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-12-25 05:35:27,527 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-12-25 05:35:27,528 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-12-25 05:35:27,528 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-12-25 05:35:27,528 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-12-25 05:35:27,529 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-12-25 05:35:27,529 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-12-25 05:35:27,529 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-12-25 05:35:27,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 05:35:27,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 05:35:27,530 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-12-25 05:35:27,530 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-12-25 05:35:27,530 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__executivefloor [2023-12-25 05:35:27,530 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__executivefloor [2023-12-25 05:35:27,699 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 05:35:27,701 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 05:35:28,548 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 05:35:28,621 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 05:35:28,621 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-25 05:35:28,621 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:35:28 BoogieIcfgContainer [2023-12-25 05:35:28,622 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 05:35:28,623 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 05:35:28,623 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 05:35:28,625 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 05:35:28,626 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 05:35:26" (1/3) ... [2023-12-25 05:35:28,626 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1aac7bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:35:28, skipping insertion in model container [2023-12-25 05:35:28,626 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:35:27" (2/3) ... [2023-12-25 05:35:28,626 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1aac7bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:35:28, skipping insertion in model container [2023-12-25 05:35:28,626 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:35:28" (3/3) ... [2023-12-25 05:35:28,627 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product32.cil.c [2023-12-25 05:35:28,639 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 05:35:28,640 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 05:35:28,679 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 05:35:28,684 INFO L357 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, mHoare=true, 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;@7a04917, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 05:35:28,684 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 05:35:28,689 INFO L276 IsEmpty]: Start isEmpty. Operand has 606 states, 460 states have (on average 1.6934782608695653) internal successors, (779), 480 states have internal predecessors, (779), 115 states have call successors, (115), 29 states have call predecessors, (115), 29 states have return successors, (115), 111 states have call predecessors, (115), 115 states have call successors, (115) [2023-12-25 05:35:28,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-25 05:35:28,698 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:28,699 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-25 05:35:28,699 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:28,703 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:28,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1753564149, now seen corresponding path program 1 times [2023-12-25 05:35:28,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:28,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [793949862] [2023-12-25 05:35:28,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:28,713 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:28,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:28,752 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:35:28,813 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-25 05:35:29,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:29,131 INFO L262 TraceCheckSpWp]: Trace formula consists of 752 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:35:29,138 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:29,213 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:35:29,214 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:29,214 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:29,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [793949862] [2023-12-25 05:35:29,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [793949862] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:29,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:29,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:35:29,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422231501] [2023-12-25 05:35:29,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:29,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:35:29,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:29,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:35:29,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:35:29,286 INFO L87 Difference]: Start difference. First operand has 606 states, 460 states have (on average 1.6934782608695653) internal successors, (779), 480 states have internal predecessors, (779), 115 states have call successors, (115), 29 states have call predecessors, (115), 29 states have return successors, (115), 111 states have call predecessors, (115), 115 states have call successors, (115) Second operand has 7 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:35:29,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:29,543 INFO L93 Difference]: Finished difference Result 1215 states and 2036 transitions. [2023-12-25 05:35:29,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:35:29,546 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 56 [2023-12-25 05:35:29,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:29,559 INFO L225 Difference]: With dead ends: 1215 [2023-12-25 05:35:29,559 INFO L226 Difference]: Without dead ends: 614 [2023-12-25 05:35:29,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:35:29,568 INFO L413 NwaCegarLoop]: 975 mSDtfsCounter, 115 mSDsluCounter, 4780 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 5755 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:29,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 5755 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:35:29,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2023-12-25 05:35:29,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 612. [2023-12-25 05:35:29,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 612 states, 466 states have (on average 1.6802575107296138) internal successors, (783), 486 states have internal predecessors, (783), 116 states have call successors, (116), 29 states have call predecessors, (116), 29 states have return successors, (115), 110 states have call predecessors, (115), 113 states have call successors, (115) [2023-12-25 05:35:29,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 1014 transitions. [2023-12-25 05:35:29,632 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 1014 transitions. Word has length 56 [2023-12-25 05:35:29,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:29,633 INFO L495 AbstractCegarLoop]: Abstraction has 612 states and 1014 transitions. [2023-12-25 05:35:29,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:35:29,633 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 1014 transitions. [2023-12-25 05:35:29,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-25 05:35:29,635 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:29,636 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-25 05:35:29,657 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-25 05:35:29,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:29,844 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:29,844 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:29,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1869492017, now seen corresponding path program 1 times [2023-12-25 05:35:29,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:29,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1751627612] [2023-12-25 05:35:29,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:29,846 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:29,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:29,862 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:35:29,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-25 05:35:30,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:30,146 INFO L262 TraceCheckSpWp]: Trace formula consists of 753 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:35:30,150 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:30,171 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:35:30,172 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:30,172 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:30,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1751627612] [2023-12-25 05:35:30,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1751627612] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:30,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:30,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:35:30,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255298777] [2023-12-25 05:35:30,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:30,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:35:30,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:30,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:35:30,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:35:30,177 INFO L87 Difference]: Start difference. First operand 612 states and 1014 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:35:30,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:30,297 INFO L93 Difference]: Finished difference Result 1212 states and 2015 transitions. [2023-12-25 05:35:30,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:35:30,298 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 57 [2023-12-25 05:35:30,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:30,303 INFO L225 Difference]: With dead ends: 1212 [2023-12-25 05:35:30,303 INFO L226 Difference]: Without dead ends: 589 [2023-12-25 05:35:30,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:35:30,306 INFO L413 NwaCegarLoop]: 968 mSDtfsCounter, 22 mSDsluCounter, 1929 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 2897 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:30,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 2897 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:35:30,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2023-12-25 05:35:30,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 589. [2023-12-25 05:35:30,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 589 states, 446 states have (on average 1.6704035874439462) internal successors, (745), 464 states have internal predecessors, (745), 115 states have call successors, (115), 29 states have call predecessors, (115), 27 states have return successors, (112), 109 states have call predecessors, (112), 112 states have call successors, (112) [2023-12-25 05:35:30,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 972 transitions. [2023-12-25 05:35:30,330 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 972 transitions. Word has length 57 [2023-12-25 05:35:30,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:30,330 INFO L495 AbstractCegarLoop]: Abstraction has 589 states and 972 transitions. [2023-12-25 05:35:30,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:35:30,331 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 972 transitions. [2023-12-25 05:35:30,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-25 05:35:30,332 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:30,332 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-25 05:35:30,342 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-25 05:35:30,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:30,545 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:30,546 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:30,546 INFO L85 PathProgramCache]: Analyzing trace with hash -242637117, now seen corresponding path program 1 times [2023-12-25 05:35:30,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:30,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1408113138] [2023-12-25 05:35:30,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:30,548 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:30,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:30,550 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:35:30,552 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-25 05:35:30,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:30,806 INFO L262 TraceCheckSpWp]: Trace formula consists of 753 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:35:30,809 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:30,854 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:35:30,854 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:30,854 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:30,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1408113138] [2023-12-25 05:35:30,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1408113138] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:30,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:30,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:35:30,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279747419] [2023-12-25 05:35:30,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:30,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:35:30,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:30,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:35:30,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:35:30,858 INFO L87 Difference]: Start difference. First operand 589 states and 972 transitions. Second operand has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:35:31,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:31,010 INFO L93 Difference]: Finished difference Result 1176 states and 1948 transitions. [2023-12-25 05:35:31,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:35:31,010 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 57 [2023-12-25 05:35:31,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:31,013 INFO L225 Difference]: With dead ends: 1176 [2023-12-25 05:35:31,014 INFO L226 Difference]: Without dead ends: 583 [2023-12-25 05:35:31,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:35:31,016 INFO L413 NwaCegarLoop]: 944 mSDtfsCounter, 101 mSDsluCounter, 4641 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 5585 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:31,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 5585 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:35:31,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2023-12-25 05:35:31,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 583. [2023-12-25 05:35:31,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 583 states, 440 states have (on average 1.6636363636363636) internal successors, (732), 458 states have internal predecessors, (732), 115 states have call successors, (115), 29 states have call predecessors, (115), 27 states have return successors, (112), 109 states have call predecessors, (112), 112 states have call successors, (112) [2023-12-25 05:35:31,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 959 transitions. [2023-12-25 05:35:31,066 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 959 transitions. Word has length 57 [2023-12-25 05:35:31,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:31,066 INFO L495 AbstractCegarLoop]: Abstraction has 583 states and 959 transitions. [2023-12-25 05:35:31,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:35:31,067 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 959 transitions. [2023-12-25 05:35:31,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-25 05:35:31,067 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:31,068 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-25 05:35:31,081 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-25 05:35:31,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:31,276 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:31,276 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:31,277 INFO L85 PathProgramCache]: Analyzing trace with hash 842793063, now seen corresponding path program 1 times [2023-12-25 05:35:31,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:31,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [930948643] [2023-12-25 05:35:31,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:31,277 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:31,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:31,278 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:35:31,290 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-25 05:35:31,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:31,600 INFO L262 TraceCheckSpWp]: Trace formula consists of 754 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:35:31,603 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:31,653 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:35:31,653 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:31,653 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:31,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [930948643] [2023-12-25 05:35:31,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [930948643] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:31,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:31,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:35:31,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408513125] [2023-12-25 05:35:31,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:31,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:35:31,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:31,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:35:31,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:35:31,657 INFO L87 Difference]: Start difference. First operand 583 states and 959 transitions. Second operand has 7 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:35:31,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:31,797 INFO L93 Difference]: Finished difference Result 1164 states and 1922 transitions. [2023-12-25 05:35:31,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:35:31,797 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 58 [2023-12-25 05:35:31,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:31,801 INFO L225 Difference]: With dead ends: 1164 [2023-12-25 05:35:31,801 INFO L226 Difference]: Without dead ends: 577 [2023-12-25 05:35:31,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:35:31,804 INFO L413 NwaCegarLoop]: 932 mSDtfsCounter, 87 mSDsluCounter, 4593 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 5525 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:31,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 5525 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:35:31,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2023-12-25 05:35:31,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 577. [2023-12-25 05:35:31,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 434 states have (on average 1.6566820276497696) internal successors, (719), 452 states have internal predecessors, (719), 115 states have call successors, (115), 29 states have call predecessors, (115), 27 states have return successors, (112), 109 states have call predecessors, (112), 112 states have call successors, (112) [2023-12-25 05:35:31,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 946 transitions. [2023-12-25 05:35:31,819 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 946 transitions. Word has length 58 [2023-12-25 05:35:31,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:31,820 INFO L495 AbstractCegarLoop]: Abstraction has 577 states and 946 transitions. [2023-12-25 05:35:31,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:35:31,820 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 946 transitions. [2023-12-25 05:35:31,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-25 05:35:31,821 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:31,821 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-25 05:35:31,838 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-12-25 05:35:32,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:32,029 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:32,029 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:32,029 INFO L85 PathProgramCache]: Analyzing trace with hash -509111106, now seen corresponding path program 1 times [2023-12-25 05:35:32,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:32,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [446309780] [2023-12-25 05:35:32,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:32,042 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:32,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:32,043 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:35:32,045 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-25 05:35:32,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:32,295 INFO L262 TraceCheckSpWp]: Trace formula consists of 754 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:35:32,298 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:32,338 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:35:32,339 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:32,339 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:32,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [446309780] [2023-12-25 05:35:32,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [446309780] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:32,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:32,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:35:32,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234948037] [2023-12-25 05:35:32,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:32,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:35:32,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:32,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:35:32,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:35:32,340 INFO L87 Difference]: Start difference. First operand 577 states and 946 transitions. Second operand has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:35:32,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:32,480 INFO L93 Difference]: Finished difference Result 1152 states and 1896 transitions. [2023-12-25 05:35:32,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:35:32,481 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 59 [2023-12-25 05:35:32,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:32,485 INFO L225 Difference]: With dead ends: 1152 [2023-12-25 05:35:32,485 INFO L226 Difference]: Without dead ends: 571 [2023-12-25 05:35:32,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:35:32,488 INFO L413 NwaCegarLoop]: 920 mSDtfsCounter, 73 mSDsluCounter, 4545 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 5465 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:32,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 5465 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:35:32,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2023-12-25 05:35:32,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 571. [2023-12-25 05:35:32,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 428 states have (on average 1.647196261682243) internal successors, (705), 446 states have internal predecessors, (705), 115 states have call successors, (115), 29 states have call predecessors, (115), 27 states have return successors, (112), 109 states have call predecessors, (112), 112 states have call successors, (112) [2023-12-25 05:35:32,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 932 transitions. [2023-12-25 05:35:32,502 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 932 transitions. Word has length 59 [2023-12-25 05:35:32,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:32,502 INFO L495 AbstractCegarLoop]: Abstraction has 571 states and 932 transitions. [2023-12-25 05:35:32,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:35:32,502 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 932 transitions. [2023-12-25 05:35:32,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-25 05:35:32,503 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:32,503 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-25 05:35:32,526 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-25 05:35:32,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:32,727 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:32,727 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:32,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1522070723, now seen corresponding path program 1 times [2023-12-25 05:35:32,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:32,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [221303766] [2023-12-25 05:35:32,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:32,728 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:32,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:32,729 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:35:32,735 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-25 05:35:32,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:33,006 INFO L262 TraceCheckSpWp]: Trace formula consists of 756 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:35:33,009 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:33,066 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:35:33,066 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:33,066 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:33,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [221303766] [2023-12-25 05:35:33,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [221303766] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:33,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:33,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:35:33,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601114034] [2023-12-25 05:35:33,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:33,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:35:33,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:33,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:35:33,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:35:33,067 INFO L87 Difference]: Start difference. First operand 571 states and 932 transitions. Second operand has 8 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:35:33,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:33,333 INFO L93 Difference]: Finished difference Result 1134 states and 1857 transitions. [2023-12-25 05:35:33,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:35:33,334 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 60 [2023-12-25 05:35:33,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:33,337 INFO L225 Difference]: With dead ends: 1134 [2023-12-25 05:35:33,337 INFO L226 Difference]: Without dead ends: 571 [2023-12-25 05:35:33,339 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:35:33,340 INFO L413 NwaCegarLoop]: 898 mSDtfsCounter, 35 mSDsluCounter, 5365 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 6263 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:33,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 6263 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:35:33,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2023-12-25 05:35:33,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 571. [2023-12-25 05:35:33,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 428 states have (on average 1.644859813084112) internal successors, (704), 446 states have internal predecessors, (704), 115 states have call successors, (115), 29 states have call predecessors, (115), 27 states have return successors, (112), 109 states have call predecessors, (112), 112 states have call successors, (112) [2023-12-25 05:35:33,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 931 transitions. [2023-12-25 05:35:33,353 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 931 transitions. Word has length 60 [2023-12-25 05:35:33,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:33,353 INFO L495 AbstractCegarLoop]: Abstraction has 571 states and 931 transitions. [2023-12-25 05:35:33,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:35:33,353 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 931 transitions. [2023-12-25 05:35:33,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-25 05:35:33,354 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:33,354 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-25 05:35:33,364 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-12-25 05:35:33,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:33,568 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:33,568 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:33,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1211594815, now seen corresponding path program 1 times [2023-12-25 05:35:33,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:33,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [261992325] [2023-12-25 05:35:33,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:33,569 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:33,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:33,570 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:35:33,573 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-25 05:35:33,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:33,819 INFO L262 TraceCheckSpWp]: Trace formula consists of 757 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:35:33,821 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:33,875 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:35:33,875 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:33,875 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:33,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [261992325] [2023-12-25 05:35:33,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [261992325] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:33,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:33,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:35:33,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965722633] [2023-12-25 05:35:33,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:33,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:35:33,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:33,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:35:33,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:35:33,876 INFO L87 Difference]: Start difference. First operand 571 states and 931 transitions. Second operand has 8 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:35:34,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:34,054 INFO L93 Difference]: Finished difference Result 1134 states and 1855 transitions. [2023-12-25 05:35:34,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:35:34,055 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 61 [2023-12-25 05:35:34,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:34,058 INFO L225 Difference]: With dead ends: 1134 [2023-12-25 05:35:34,058 INFO L226 Difference]: Without dead ends: 571 [2023-12-25 05:35:34,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:35:34,061 INFO L413 NwaCegarLoop]: 898 mSDtfsCounter, 32 mSDsluCounter, 5365 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 6263 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:34,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 6263 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:35:34,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2023-12-25 05:35:34,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 571. [2023-12-25 05:35:34,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 428 states have (on average 1.6425233644859814) internal successors, (703), 446 states have internal predecessors, (703), 115 states have call successors, (115), 29 states have call predecessors, (115), 27 states have return successors, (112), 109 states have call predecessors, (112), 112 states have call successors, (112) [2023-12-25 05:35:34,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 930 transitions. [2023-12-25 05:35:34,073 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 930 transitions. Word has length 61 [2023-12-25 05:35:34,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:34,073 INFO L495 AbstractCegarLoop]: Abstraction has 571 states and 930 transitions. [2023-12-25 05:35:34,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:35:34,073 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 930 transitions. [2023-12-25 05:35:34,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-25 05:35:34,074 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:34,074 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-25 05:35:34,096 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-25 05:35:34,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:34,282 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:34,283 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:34,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1009268958, now seen corresponding path program 1 times [2023-12-25 05:35:34,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:34,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [48613453] [2023-12-25 05:35:34,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:34,283 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:34,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:34,284 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:35:34,318 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-25 05:35:34,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:34,534 INFO L262 TraceCheckSpWp]: Trace formula consists of 758 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:35:34,537 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:34,590 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:35:34,591 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:34,591 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:34,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [48613453] [2023-12-25 05:35:34,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [48613453] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:34,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:34,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:35:34,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755346674] [2023-12-25 05:35:34,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:34,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:35:34,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:34,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:35:34,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:35:34,592 INFO L87 Difference]: Start difference. First operand 571 states and 930 transitions. Second operand has 8 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:35:34,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:34,782 INFO L93 Difference]: Finished difference Result 1134 states and 1853 transitions. [2023-12-25 05:35:34,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:35:34,783 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 62 [2023-12-25 05:35:34,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:34,786 INFO L225 Difference]: With dead ends: 1134 [2023-12-25 05:35:34,786 INFO L226 Difference]: Without dead ends: 571 [2023-12-25 05:35:34,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:35:34,789 INFO L413 NwaCegarLoop]: 898 mSDtfsCounter, 29 mSDsluCounter, 5365 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 6263 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:34,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 6263 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:35:34,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2023-12-25 05:35:34,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 571. [2023-12-25 05:35:34,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 428 states have (on average 1.6401869158878504) internal successors, (702), 446 states have internal predecessors, (702), 115 states have call successors, (115), 29 states have call predecessors, (115), 27 states have return successors, (112), 109 states have call predecessors, (112), 112 states have call successors, (112) [2023-12-25 05:35:34,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 929 transitions. [2023-12-25 05:35:34,803 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 929 transitions. Word has length 62 [2023-12-25 05:35:34,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:34,804 INFO L495 AbstractCegarLoop]: Abstraction has 571 states and 929 transitions. [2023-12-25 05:35:34,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:35:34,804 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 929 transitions. [2023-12-25 05:35:34,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-25 05:35:34,805 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:34,805 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-25 05:35:34,820 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-25 05:35:35,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:35,015 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:35,016 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:35,016 INFO L85 PathProgramCache]: Analyzing trace with hash -135372614, now seen corresponding path program 1 times [2023-12-25 05:35:35,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:35,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1151788891] [2023-12-25 05:35:35,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:35,016 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:35,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:35,018 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:35:35,037 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-25 05:35:35,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:35,280 INFO L262 TraceCheckSpWp]: Trace formula consists of 759 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:35:35,283 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:35,344 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:35:35,344 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:35,344 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:35,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1151788891] [2023-12-25 05:35:35,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1151788891] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:35,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:35,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:35:35,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122436472] [2023-12-25 05:35:35,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:35,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:35:35,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:35,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:35:35,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:35:35,346 INFO L87 Difference]: Start difference. First operand 571 states and 929 transitions. Second operand has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:35:35,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:35,515 INFO L93 Difference]: Finished difference Result 1134 states and 1851 transitions. [2023-12-25 05:35:35,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:35:35,516 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 63 [2023-12-25 05:35:35,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:35,519 INFO L225 Difference]: With dead ends: 1134 [2023-12-25 05:35:35,519 INFO L226 Difference]: Without dead ends: 571 [2023-12-25 05:35:35,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:35:35,522 INFO L413 NwaCegarLoop]: 898 mSDtfsCounter, 26 mSDsluCounter, 5365 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 6263 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:35,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 6263 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:35:35,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2023-12-25 05:35:35,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 571. [2023-12-25 05:35:35,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 428 states have (on average 1.6378504672897196) internal successors, (701), 446 states have internal predecessors, (701), 115 states have call successors, (115), 29 states have call predecessors, (115), 27 states have return successors, (112), 109 states have call predecessors, (112), 112 states have call successors, (112) [2023-12-25 05:35:35,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 928 transitions. [2023-12-25 05:35:35,535 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 928 transitions. Word has length 63 [2023-12-25 05:35:35,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:35,536 INFO L495 AbstractCegarLoop]: Abstraction has 571 states and 928 transitions. [2023-12-25 05:35:35,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:35:35,536 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 928 transitions. [2023-12-25 05:35:35,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-25 05:35:35,537 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:35,537 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-25 05:35:35,544 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-25 05:35:35,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:35,744 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:35,745 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:35,745 INFO L85 PathProgramCache]: Analyzing trace with hash -427030279, now seen corresponding path program 1 times [2023-12-25 05:35:35,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:35,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1804523918] [2023-12-25 05:35:35,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:35,745 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:35,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:35,746 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:35:35,750 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-25 05:35:36,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:36,022 INFO L262 TraceCheckSpWp]: Trace formula consists of 760 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:35:36,025 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:36,109 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:35:36,109 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:36,109 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:36,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1804523918] [2023-12-25 05:35:36,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1804523918] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:36,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:36,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:35:36,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170725677] [2023-12-25 05:35:36,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:36,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:35:36,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:36,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:35:36,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:35:36,111 INFO L87 Difference]: Start difference. First operand 571 states and 928 transitions. Second operand has 6 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:35:36,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:36,695 INFO L93 Difference]: Finished difference Result 1664 states and 2750 transitions. [2023-12-25 05:35:36,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:35:36,697 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 64 [2023-12-25 05:35:36,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:36,704 INFO L225 Difference]: With dead ends: 1664 [2023-12-25 05:35:36,704 INFO L226 Difference]: Without dead ends: 1105 [2023-12-25 05:35:36,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:35:36,707 INFO L413 NwaCegarLoop]: 962 mSDtfsCounter, 861 mSDsluCounter, 3457 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 864 SdHoareTripleChecker+Valid, 4419 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:36,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [864 Valid, 4419 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 05:35:36,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1105 states. [2023-12-25 05:35:36,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1105 to 1096. [2023-12-25 05:35:36,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1096 states, 828 states have (on average 1.641304347826087) internal successors, (1359), 861 states have internal predecessors, (1359), 215 states have call successors, (215), 54 states have call predecessors, (215), 52 states have return successors, (227), 208 states have call predecessors, (227), 211 states have call successors, (227) [2023-12-25 05:35:36,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1096 states to 1096 states and 1801 transitions. [2023-12-25 05:35:36,739 INFO L78 Accepts]: Start accepts. Automaton has 1096 states and 1801 transitions. Word has length 64 [2023-12-25 05:35:36,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:36,739 INFO L495 AbstractCegarLoop]: Abstraction has 1096 states and 1801 transitions. [2023-12-25 05:35:36,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:35:36,739 INFO L276 IsEmpty]: Start isEmpty. Operand 1096 states and 1801 transitions. [2023-12-25 05:35:36,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-25 05:35:36,740 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:36,740 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-25 05:35:36,762 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-25 05:35:36,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:36,947 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:36,947 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:36,947 INFO L85 PathProgramCache]: Analyzing trace with hash 827384825, now seen corresponding path program 1 times [2023-12-25 05:35:36,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:36,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1669412046] [2023-12-25 05:35:36,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:36,948 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:36,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:36,950 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:35:36,950 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-25 05:35:37,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:37,175 INFO L262 TraceCheckSpWp]: Trace formula consists of 760 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:35:37,178 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:37,259 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:35:37,259 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:37,259 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:37,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1669412046] [2023-12-25 05:35:37,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1669412046] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:37,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:37,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:35:37,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687818906] [2023-12-25 05:35:37,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:37,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:35:37,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:37,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:35:37,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:35:37,260 INFO L87 Difference]: Start difference. First operand 1096 states and 1801 transitions. Second operand has 6 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 4 states have call successors, (10), 3 states have call predecessors, (10), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-25 05:35:38,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:38,012 INFO L93 Difference]: Finished difference Result 2681 states and 4433 transitions. [2023-12-25 05:35:38,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:35:38,014 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 4 states have call successors, (10), 3 states have call predecessors, (10), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 64 [2023-12-25 05:35:38,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:38,024 INFO L225 Difference]: With dead ends: 2681 [2023-12-25 05:35:38,024 INFO L226 Difference]: Without dead ends: 1597 [2023-12-25 05:35:38,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:35:38,031 INFO L413 NwaCegarLoop]: 920 mSDtfsCounter, 756 mSDsluCounter, 3369 mSDsCounter, 0 mSdLazyCounter, 604 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 760 SdHoareTripleChecker+Valid, 4289 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:38,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [760 Valid, 4289 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 604 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 05:35:38,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1597 states. [2023-12-25 05:35:38,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1597 to 1589. [2023-12-25 05:35:38,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1589 states, 1199 states have (on average 1.6163469557964971) internal successors, (1938), 1248 states have internal predecessors, (1938), 312 states have call successors, (312), 81 states have call predecessors, (312), 77 states have return successors, (339), 300 states have call predecessors, (339), 307 states have call successors, (339) [2023-12-25 05:35:38,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1589 states to 1589 states and 2589 transitions. [2023-12-25 05:35:38,094 INFO L78 Accepts]: Start accepts. Automaton has 1589 states and 2589 transitions. Word has length 64 [2023-12-25 05:35:38,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:38,094 INFO L495 AbstractCegarLoop]: Abstraction has 1589 states and 2589 transitions. [2023-12-25 05:35:38,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 4 states have call successors, (10), 3 states have call predecessors, (10), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-25 05:35:38,094 INFO L276 IsEmpty]: Start isEmpty. Operand 1589 states and 2589 transitions. [2023-12-25 05:35:38,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-25 05:35:38,095 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:38,095 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-25 05:35:38,120 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-25 05:35:38,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:38,302 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:38,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:38,303 INFO L85 PathProgramCache]: Analyzing trace with hash 201037956, now seen corresponding path program 1 times [2023-12-25 05:35:38,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:38,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [854387653] [2023-12-25 05:35:38,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:38,303 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:38,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:38,305 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:35:38,339 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-25 05:35:38,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:38,563 INFO L262 TraceCheckSpWp]: Trace formula consists of 768 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:35:38,565 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:38,639 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:35:38,639 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:38,639 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:38,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [854387653] [2023-12-25 05:35:38,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [854387653] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:38,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:38,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:35:38,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430546442] [2023-12-25 05:35:38,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:38,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:35:38,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:38,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:35:38,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:35:38,641 INFO L87 Difference]: Start difference. First operand 1589 states and 2589 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-25 05:35:39,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:39,344 INFO L93 Difference]: Finished difference Result 4763 states and 7988 transitions. [2023-12-25 05:35:39,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:35:39,345 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 67 [2023-12-25 05:35:39,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:39,365 INFO L225 Difference]: With dead ends: 4763 [2023-12-25 05:35:39,365 INFO L226 Difference]: Without dead ends: 3186 [2023-12-25 05:35:39,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:35:39,375 INFO L413 NwaCegarLoop]: 1037 mSDtfsCounter, 949 mSDsluCounter, 3607 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 965 SdHoareTripleChecker+Valid, 4644 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:39,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [965 Valid, 4644 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 05:35:39,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3186 states. [2023-12-25 05:35:39,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3186 to 3112. [2023-12-25 05:35:39,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3112 states, 2352 states have (on average 1.6084183673469388) internal successors, (3783), 2448 states have internal predecessors, (3783), 604 states have call successors, (604), 159 states have call predecessors, (604), 155 states have return successors, (789), 586 states have call predecessors, (789), 596 states have call successors, (789) [2023-12-25 05:35:39,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3112 states to 3112 states and 5176 transitions. [2023-12-25 05:35:39,539 INFO L78 Accepts]: Start accepts. Automaton has 3112 states and 5176 transitions. Word has length 67 [2023-12-25 05:35:39,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:39,539 INFO L495 AbstractCegarLoop]: Abstraction has 3112 states and 5176 transitions. [2023-12-25 05:35:39,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-25 05:35:39,539 INFO L276 IsEmpty]: Start isEmpty. Operand 3112 states and 5176 transitions. [2023-12-25 05:35:39,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-25 05:35:39,540 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:39,540 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-25 05:35:39,550 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-25 05:35:39,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:39,748 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:39,748 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:39,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1665529125, now seen corresponding path program 1 times [2023-12-25 05:35:39,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:39,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [950505302] [2023-12-25 05:35:39,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:39,749 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:39,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:39,750 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:35:39,784 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-25 05:35:40,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:40,018 INFO L262 TraceCheckSpWp]: Trace formula consists of 769 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:35:40,020 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:40,034 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:35:40,035 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:40,035 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:40,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [950505302] [2023-12-25 05:35:40,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [950505302] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:40,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:40,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:35:40,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711208010] [2023-12-25 05:35:40,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:40,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:35:40,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:40,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:35:40,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:35:40,037 INFO L87 Difference]: Start difference. First operand 3112 states and 5176 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-25 05:35:40,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:40,239 INFO L93 Difference]: Finished difference Result 6230 states and 10492 transitions. [2023-12-25 05:35:40,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:35:40,240 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 68 [2023-12-25 05:35:40,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:40,259 INFO L225 Difference]: With dead ends: 6230 [2023-12-25 05:35:40,259 INFO L226 Difference]: Without dead ends: 3130 [2023-12-25 05:35:40,276 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:35:40,277 INFO L413 NwaCegarLoop]: 891 mSDtfsCounter, 19 mSDsluCounter, 1753 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 2644 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:40,277 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 2644 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:35:40,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3130 states. [2023-12-25 05:35:40,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3130 to 3124. [2023-12-25 05:35:40,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 2361 states have (on average 1.604828462515883) internal successors, (3789), 2457 states have internal predecessors, (3789), 604 states have call successors, (604), 165 states have call predecessors, (604), 158 states have return successors, (776), 583 states have call predecessors, (776), 596 states have call successors, (776) [2023-12-25 05:35:40,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 5169 transitions. [2023-12-25 05:35:40,463 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 5169 transitions. Word has length 68 [2023-12-25 05:35:40,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:40,464 INFO L495 AbstractCegarLoop]: Abstraction has 3124 states and 5169 transitions. [2023-12-25 05:35:40,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-25 05:35:40,465 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 5169 transitions. [2023-12-25 05:35:40,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-25 05:35:40,466 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:40,466 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:35:40,476 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-25 05:35:40,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:40,674 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:40,675 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:40,675 INFO L85 PathProgramCache]: Analyzing trace with hash -229863961, now seen corresponding path program 1 times [2023-12-25 05:35:40,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:40,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2082195108] [2023-12-25 05:35:40,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:40,676 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:40,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:40,677 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:35:40,708 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-25 05:35:40,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:40,922 INFO L262 TraceCheckSpWp]: Trace formula consists of 781 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:35:40,925 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:41,011 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:35:41,011 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:41,012 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:41,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2082195108] [2023-12-25 05:35:41,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2082195108] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:41,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:41,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:35:41,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757691009] [2023-12-25 05:35:41,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:41,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:35:41,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:41,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:35:41,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:35:41,013 INFO L87 Difference]: Start difference. First operand 3124 states and 5169 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-25 05:35:41,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:41,674 INFO L93 Difference]: Finished difference Result 9433 states and 16222 transitions. [2023-12-25 05:35:41,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:35:41,675 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 76 [2023-12-25 05:35:41,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:41,773 INFO L225 Difference]: With dead ends: 9433 [2023-12-25 05:35:41,773 INFO L226 Difference]: Without dead ends: 6321 [2023-12-25 05:35:41,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:35:41,786 INFO L413 NwaCegarLoop]: 988 mSDtfsCounter, 923 mSDsluCounter, 3521 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 934 SdHoareTripleChecker+Valid, 4509 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:41,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [934 Valid, 4509 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 05:35:41,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6321 states. [2023-12-25 05:35:41,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6321 to 6209. [2023-12-25 05:35:41,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6209 states, 4697 states have (on average 1.5988929103683203) internal successors, (7510), 4887 states have internal predecessors, (7510), 1191 states have call successors, (1191), 327 states have call predecessors, (1191), 320 states have return successors, (1871), 1158 states have call predecessors, (1871), 1177 states have call successors, (1871) [2023-12-25 05:35:42,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6209 states to 6209 states and 10572 transitions. [2023-12-25 05:35:42,001 INFO L78 Accepts]: Start accepts. Automaton has 6209 states and 10572 transitions. Word has length 76 [2023-12-25 05:35:42,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:42,002 INFO L495 AbstractCegarLoop]: Abstraction has 6209 states and 10572 transitions. [2023-12-25 05:35:42,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-25 05:35:42,002 INFO L276 IsEmpty]: Start isEmpty. Operand 6209 states and 10572 transitions. [2023-12-25 05:35:42,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-25 05:35:42,003 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:42,003 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:35:42,013 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-12-25 05:35:42,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:42,211 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:42,211 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:42,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1686583190, now seen corresponding path program 1 times [2023-12-25 05:35:42,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:42,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [990099432] [2023-12-25 05:35:42,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:42,212 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:42,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:42,213 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:35:42,240 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-25 05:35:42,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:42,453 INFO L262 TraceCheckSpWp]: Trace formula consists of 782 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:35:42,455 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:42,469 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-25 05:35:42,469 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:42,469 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:42,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [990099432] [2023-12-25 05:35:42,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [990099432] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:42,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:42,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:35:42,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695609511] [2023-12-25 05:35:42,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:42,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:35:42,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:42,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:35:42,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:35:42,470 INFO L87 Difference]: Start difference. First operand 6209 states and 10572 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-25 05:35:42,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:42,785 INFO L93 Difference]: Finished difference Result 12478 states and 21589 transitions. [2023-12-25 05:35:42,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:35:42,786 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 77 [2023-12-25 05:35:42,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:42,837 INFO L225 Difference]: With dead ends: 12478 [2023-12-25 05:35:42,837 INFO L226 Difference]: Without dead ends: 6281 [2023-12-25 05:35:42,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:35:42,864 INFO L413 NwaCegarLoop]: 889 mSDtfsCounter, 21 mSDsluCounter, 1753 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 2642 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:42,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 2642 Invalid, 125 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:35:42,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6281 states. [2023-12-25 05:35:43,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6281 to 6269. [2023-12-25 05:35:43,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6269 states, 4751 states have (on average 1.5933487686802779) internal successors, (7570), 4929 states have internal predecessors, (7570), 1191 states have call successors, (1191), 351 states have call predecessors, (1191), 326 states have return successors, (1853), 1152 states have call predecessors, (1853), 1177 states have call successors, (1853) [2023-12-25 05:35:43,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6269 states to 6269 states and 10614 transitions. [2023-12-25 05:35:43,171 INFO L78 Accepts]: Start accepts. Automaton has 6269 states and 10614 transitions. Word has length 77 [2023-12-25 05:35:43,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:43,171 INFO L495 AbstractCegarLoop]: Abstraction has 6269 states and 10614 transitions. [2023-12-25 05:35:43,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-25 05:35:43,172 INFO L276 IsEmpty]: Start isEmpty. Operand 6269 states and 10614 transitions. [2023-12-25 05:35:43,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-25 05:35:43,174 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:43,174 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2023-12-25 05:35:43,197 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-12-25 05:35:43,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:43,383 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:43,383 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:43,383 INFO L85 PathProgramCache]: Analyzing trace with hash -556731389, now seen corresponding path program 1 times [2023-12-25 05:35:43,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:43,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1392533955] [2023-12-25 05:35:43,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:43,384 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:43,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:43,385 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:35:43,390 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-25 05:35:43,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:43,652 INFO L262 TraceCheckSpWp]: Trace formula consists of 795 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:35:43,654 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:43,751 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-25 05:35:43,751 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:43,751 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:43,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1392533955] [2023-12-25 05:35:43,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1392533955] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:43,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:43,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:35:43,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263242312] [2023-12-25 05:35:43,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:43,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:35:43,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:43,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:35:43,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:35:43,753 INFO L87 Difference]: Start difference. First operand 6269 states and 10614 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-25 05:35:44,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:44,710 INFO L93 Difference]: Finished difference Result 18951 states and 33922 transitions. [2023-12-25 05:35:44,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:35:44,712 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 86 [2023-12-25 05:35:44,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:44,796 INFO L225 Difference]: With dead ends: 18951 [2023-12-25 05:35:44,796 INFO L226 Difference]: Without dead ends: 12694 [2023-12-25 05:35:44,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:35:44,835 INFO L413 NwaCegarLoop]: 988 mSDtfsCounter, 901 mSDsluCounter, 3600 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 909 SdHoareTripleChecker+Valid, 4588 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:44,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [909 Valid, 4588 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 05:35:44,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12694 states. [2023-12-25 05:35:45,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12694 to 12538. [2023-12-25 05:35:45,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12538 states, 9507 states have (on average 1.5884085410749973) internal successors, (15101), 9861 states have internal predecessors, (15101), 2368 states have call successors, (2368), 699 states have call predecessors, (2368), 662 states have return successors, (4696), 2305 states have call predecessors, (4696), 2342 states have call successors, (4696) [2023-12-25 05:35:45,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12538 states to 12538 states and 22165 transitions. [2023-12-25 05:35:45,442 INFO L78 Accepts]: Start accepts. Automaton has 12538 states and 22165 transitions. Word has length 86 [2023-12-25 05:35:45,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:45,442 INFO L495 AbstractCegarLoop]: Abstraction has 12538 states and 22165 transitions. [2023-12-25 05:35:45,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-25 05:35:45,442 INFO L276 IsEmpty]: Start isEmpty. Operand 12538 states and 22165 transitions. [2023-12-25 05:35:45,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-25 05:35:45,443 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:45,443 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2023-12-25 05:35:45,467 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2023-12-25 05:35:45,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:45,651 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:45,652 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:45,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1813626346, now seen corresponding path program 1 times [2023-12-25 05:35:45,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:45,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [639934779] [2023-12-25 05:35:45,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:45,652 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:45,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:45,653 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:35:45,658 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-25 05:35:45,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:45,907 INFO L262 TraceCheckSpWp]: Trace formula consists of 796 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:35:45,909 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:45,925 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-25 05:35:45,925 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:45,925 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:45,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [639934779] [2023-12-25 05:35:45,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [639934779] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:45,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:45,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:35:45,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205268151] [2023-12-25 05:35:45,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:45,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:35:45,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:45,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:35:45,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:35:45,929 INFO L87 Difference]: Start difference. First operand 12538 states and 22165 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-25 05:35:46,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:46,588 INFO L93 Difference]: Finished difference Result 25208 states and 45645 transitions. [2023-12-25 05:35:46,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:35:46,588 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 87 [2023-12-25 05:35:46,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:46,679 INFO L225 Difference]: With dead ends: 25208 [2023-12-25 05:35:46,679 INFO L226 Difference]: Without dead ends: 12682 [2023-12-25 05:35:46,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:35:46,756 INFO L413 NwaCegarLoop]: 889 mSDtfsCounter, 21 mSDsluCounter, 1753 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 2642 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:46,756 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 2642 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:35:46,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12682 states. [2023-12-25 05:35:47,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12682 to 12658. [2023-12-25 05:35:47,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12658 states, 9615 states have (on average 1.5830473218928758) internal successors, (15221), 9969 states have internal predecessors, (15221), 2368 states have call successors, (2368), 723 states have call predecessors, (2368), 674 states have return successors, (4676), 2293 states have call predecessors, (4676), 2342 states have call successors, (4676) [2023-12-25 05:35:47,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12658 states to 12658 states and 22265 transitions. [2023-12-25 05:35:47,335 INFO L78 Accepts]: Start accepts. Automaton has 12658 states and 22265 transitions. Word has length 87 [2023-12-25 05:35:47,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:47,336 INFO L495 AbstractCegarLoop]: Abstraction has 12658 states and 22265 transitions. [2023-12-25 05:35:47,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-25 05:35:47,336 INFO L276 IsEmpty]: Start isEmpty. Operand 12658 states and 22265 transitions. [2023-12-25 05:35:47,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-25 05:35:47,336 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:47,336 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 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] [2023-12-25 05:35:47,351 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2023-12-25 05:35:47,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:47,544 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:47,544 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:47,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1090011016, now seen corresponding path program 1 times [2023-12-25 05:35:47,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:47,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1032483136] [2023-12-25 05:35:47,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:47,545 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:47,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:47,564 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:35:47,599 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-12-25 05:35:47,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:47,836 INFO L262 TraceCheckSpWp]: Trace formula consists of 810 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:35:47,838 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:47,943 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-25 05:35:47,943 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:47,943 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:47,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1032483136] [2023-12-25 05:35:47,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1032483136] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:47,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:47,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:35:47,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163830721] [2023-12-25 05:35:47,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:47,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:35:47,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:47,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:35:47,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:35:47,946 INFO L87 Difference]: Start difference. First operand 12658 states and 22265 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:35:49,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:49,530 INFO L93 Difference]: Finished difference Result 38205 states and 73110 transitions. [2023-12-25 05:35:49,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:35:49,532 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 97 [2023-12-25 05:35:49,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:49,708 INFO L225 Difference]: With dead ends: 38205 [2023-12-25 05:35:49,708 INFO L226 Difference]: Without dead ends: 25559 [2023-12-25 05:35:49,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:35:49,789 INFO L413 NwaCegarLoop]: 1013 mSDtfsCounter, 880 mSDsluCounter, 3680 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 885 SdHoareTripleChecker+Valid, 4693 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:49,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [885 Valid, 4693 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 05:35:49,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25559 states. [2023-12-25 05:35:51,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25559 to 25379. [2023-12-25 05:35:51,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25379 states, 19283 states have (on average 1.5785925426541514) internal successors, (30440), 19989 states have internal predecessors, (30440), 4725 states have call successors, (4725), 1443 states have call predecessors, (4725), 1370 states have return successors, (12655), 4602 states have call predecessors, (12655), 4675 states have call successors, (12655) [2023-12-25 05:35:51,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25379 states to 25379 states and 47820 transitions. [2023-12-25 05:35:51,527 INFO L78 Accepts]: Start accepts. Automaton has 25379 states and 47820 transitions. Word has length 97 [2023-12-25 05:35:51,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:51,528 INFO L495 AbstractCegarLoop]: Abstraction has 25379 states and 47820 transitions. [2023-12-25 05:35:51,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:35:51,528 INFO L276 IsEmpty]: Start isEmpty. Operand 25379 states and 47820 transitions. [2023-12-25 05:35:51,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-25 05:35:51,529 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:51,529 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 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] [2023-12-25 05:35:51,545 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2023-12-25 05:35:51,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:51,736 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:51,737 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:51,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1117547909, now seen corresponding path program 1 times [2023-12-25 05:35:51,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:51,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1466054907] [2023-12-25 05:35:51,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:51,737 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:51,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:51,738 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:35:51,746 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-12-25 05:35:51,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:52,013 INFO L262 TraceCheckSpWp]: Trace formula consists of 810 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 05:35:52,016 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:52,369 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-25 05:35:52,369 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:52,369 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:52,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1466054907] [2023-12-25 05:35:52,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1466054907] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:52,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:52,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 05:35:52,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140677240] [2023-12-25 05:35:52,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:52,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:35:52,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:52,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:35:52,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:35:52,371 INFO L87 Difference]: Start difference. First operand 25379 states and 47820 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:35:54,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:54,042 INFO L93 Difference]: Finished difference Result 52631 states and 97917 transitions. [2023-12-25 05:35:54,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:35:54,048 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 98 [2023-12-25 05:35:54,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:54,250 INFO L225 Difference]: With dead ends: 52631 [2023-12-25 05:35:54,250 INFO L226 Difference]: Without dead ends: 27311 [2023-12-25 05:35:54,501 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:35:54,502 INFO L413 NwaCegarLoop]: 1057 mSDtfsCounter, 799 mSDsluCounter, 891 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 799 SdHoareTripleChecker+Valid, 1948 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:54,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [799 Valid, 1948 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:35:54,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27311 states. [2023-12-25 05:35:55,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27311 to 27172. [2023-12-25 05:35:55,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27172 states, 20628 states have (on average 1.5776129532674035) internal successors, (32543), 21369 states have internal predecessors, (32543), 5071 states have call successors, (5071), 1548 states have call predecessors, (5071), 1472 states have return successors, (13388), 4912 states have call predecessors, (13388), 5018 states have call successors, (13388) [2023-12-25 05:35:55,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27172 states to 27172 states and 51002 transitions. [2023-12-25 05:35:55,900 INFO L78 Accepts]: Start accepts. Automaton has 27172 states and 51002 transitions. Word has length 98 [2023-12-25 05:35:55,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:55,901 INFO L495 AbstractCegarLoop]: Abstraction has 27172 states and 51002 transitions. [2023-12-25 05:35:55,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:35:55,901 INFO L276 IsEmpty]: Start isEmpty. Operand 27172 states and 51002 transitions. [2023-12-25 05:35:55,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-12-25 05:35:55,908 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:55,909 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:35:55,917 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2023-12-25 05:35:56,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:56,109 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:56,110 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:56,110 INFO L85 PathProgramCache]: Analyzing trace with hash 1437023280, now seen corresponding path program 1 times [2023-12-25 05:35:56,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:56,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2013481164] [2023-12-25 05:35:56,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:56,111 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:56,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:56,112 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:35:56,113 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-12-25 05:35:56,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:56,487 INFO L262 TraceCheckSpWp]: Trace formula consists of 1000 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:35:56,491 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:56,626 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-25 05:35:56,627 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:56,627 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:56,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2013481164] [2023-12-25 05:35:56,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2013481164] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:56,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:56,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:35:56,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476158501] [2023-12-25 05:35:56,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:56,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:35:56,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:56,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:35:56,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:35:56,629 INFO L87 Difference]: Start difference. First operand 27172 states and 51002 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-25 05:35:59,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:59,151 INFO L93 Difference]: Finished difference Result 54536 states and 110353 transitions. [2023-12-25 05:35:59,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:35:59,152 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 149 [2023-12-25 05:35:59,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:59,359 INFO L225 Difference]: With dead ends: 54536 [2023-12-25 05:35:59,360 INFO L226 Difference]: Without dead ends: 27376 [2023-12-25 05:35:59,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:35:59,780 INFO L413 NwaCegarLoop]: 882 mSDtfsCounter, 837 mSDsluCounter, 1341 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 855 SdHoareTripleChecker+Valid, 2223 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:59,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [855 Valid, 2223 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 547 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-25 05:35:59,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27376 states. [2023-12-25 05:36:00,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27376 to 27376. [2023-12-25 05:36:01,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27376 states, 20781 states have (on average 1.573360281025937) internal successors, (32696), 21522 states have internal predecessors, (32696), 5071 states have call successors, (5071), 1599 states have call predecessors, (5071), 1523 states have return successors, (13439), 4912 states have call predecessors, (13439), 5018 states have call successors, (13439) [2023-12-25 05:36:01,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27376 states to 27376 states and 51206 transitions. [2023-12-25 05:36:01,262 INFO L78 Accepts]: Start accepts. Automaton has 27376 states and 51206 transitions. Word has length 149 [2023-12-25 05:36:01,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:36:01,264 INFO L495 AbstractCegarLoop]: Abstraction has 27376 states and 51206 transitions. [2023-12-25 05:36:01,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-25 05:36:01,264 INFO L276 IsEmpty]: Start isEmpty. Operand 27376 states and 51206 transitions. [2023-12-25 05:36:01,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-12-25 05:36:01,267 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:36:01,267 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:36:01,274 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2023-12-25 05:36:01,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:36:01,474 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:36:01,475 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:36:01,475 INFO L85 PathProgramCache]: Analyzing trace with hash -475273255, now seen corresponding path program 1 times [2023-12-25 05:36:01,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:36:01,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1601137695] [2023-12-25 05:36:01,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:36:01,475 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:36:01,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:36:01,477 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:36:01,478 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-12-25 05:36:01,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:36:01,784 INFO L262 TraceCheckSpWp]: Trace formula consists of 1001 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:36:01,788 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:36:01,918 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-12-25 05:36:01,918 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:36:01,918 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:36:01,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1601137695] [2023-12-25 05:36:01,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1601137695] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:36:01,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:36:01,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:36:01,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026406538] [2023-12-25 05:36:01,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:36:01,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:36:01,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:36:01,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:36:01,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:36:01,919 INFO L87 Difference]: Start difference. First operand 27376 states and 51206 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-25 05:36:04,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:36:04,579 INFO L93 Difference]: Finished difference Result 62129 states and 120748 transitions. [2023-12-25 05:36:04,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:36:04,590 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 150 [2023-12-25 05:36:04,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:36:04,948 INFO L225 Difference]: With dead ends: 62129 [2023-12-25 05:36:04,948 INFO L226 Difference]: Without dead ends: 34765 [2023-12-25 05:36:05,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:36:05,123 INFO L413 NwaCegarLoop]: 995 mSDtfsCounter, 638 mSDsluCounter, 1497 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 640 SdHoareTripleChecker+Valid, 2492 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:36:05,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [640 Valid, 2492 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:36:05,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34765 states. [2023-12-25 05:36:06,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34765 to 34757. [2023-12-25 05:36:06,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34757 states, 26253 states have (on average 1.5269873919171142) internal successors, (40088), 26907 states have internal predecessors, (40088), 6282 states have call successors, (6282), 2279 states have call predecessors, (6282), 2221 states have return successors, (18706), 6226 states have call predecessors, (18706), 6195 states have call successors, (18706) [2023-12-25 05:36:07,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34757 states to 34757 states and 65076 transitions. [2023-12-25 05:36:07,165 INFO L78 Accepts]: Start accepts. Automaton has 34757 states and 65076 transitions. Word has length 150 [2023-12-25 05:36:07,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:36:07,165 INFO L495 AbstractCegarLoop]: Abstraction has 34757 states and 65076 transitions. [2023-12-25 05:36:07,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-25 05:36:07,165 INFO L276 IsEmpty]: Start isEmpty. Operand 34757 states and 65076 transitions. [2023-12-25 05:36:07,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-12-25 05:36:07,168 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:36:07,168 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:36:07,180 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2023-12-25 05:36:07,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:36:07,379 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:36:07,379 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:36:07,379 INFO L85 PathProgramCache]: Analyzing trace with hash -2098631484, now seen corresponding path program 1 times [2023-12-25 05:36:07,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:36:07,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [950915650] [2023-12-25 05:36:07,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:36:07,380 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:36:07,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:36:07,381 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:36:07,382 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-12-25 05:36:07,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:36:07,692 INFO L262 TraceCheckSpWp]: Trace formula consists of 1002 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:36:07,696 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:36:07,822 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-25 05:36:07,822 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:36:07,822 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:36:07,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [950915650] [2023-12-25 05:36:07,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [950915650] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:36:07,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:36:07,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:36:07,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814634876] [2023-12-25 05:36:07,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:36:07,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:36:07,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:36:07,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:36:07,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:36:07,824 INFO L87 Difference]: Start difference. First operand 34757 states and 65076 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-25 05:36:11,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:36:11,282 INFO L93 Difference]: Finished difference Result 69940 states and 142691 transitions. [2023-12-25 05:36:11,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:36:11,285 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 151 [2023-12-25 05:36:11,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:36:11,536 INFO L225 Difference]: With dead ends: 69940 [2023-12-25 05:36:11,536 INFO L226 Difference]: Without dead ends: 35195 [2023-12-25 05:36:11,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:36:11,999 INFO L413 NwaCegarLoop]: 883 mSDtfsCounter, 823 mSDsluCounter, 1341 mSDsCounter, 0 mSdLazyCounter, 551 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 840 SdHoareTripleChecker+Valid, 2224 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-25 05:36:11,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [840 Valid, 2224 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 551 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-25 05:36:12,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35195 states. [2023-12-25 05:36:13,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35195 to 35195. [2023-12-25 05:36:13,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35195 states, 26589 states have (on average 1.5203279551694309) internal successors, (40424), 27267 states have internal predecessors, (40424), 6282 states have call successors, (6282), 2357 states have call predecessors, (6282), 2323 states have return successors, (18791), 6226 states have call predecessors, (18791), 6195 states have call successors, (18791) [2023-12-25 05:36:14,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35195 states to 35195 states and 65497 transitions. [2023-12-25 05:36:14,110 INFO L78 Accepts]: Start accepts. Automaton has 35195 states and 65497 transitions. Word has length 151 [2023-12-25 05:36:14,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:36:14,111 INFO L495 AbstractCegarLoop]: Abstraction has 35195 states and 65497 transitions. [2023-12-25 05:36:14,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-25 05:36:14,111 INFO L276 IsEmpty]: Start isEmpty. Operand 35195 states and 65497 transitions. [2023-12-25 05:36:14,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-25 05:36:14,114 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:36:14,114 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:36:14,126 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2023-12-25 05:36:14,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:36:14,324 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:36:14,324 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:36:14,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1192028720, now seen corresponding path program 1 times [2023-12-25 05:36:14,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:36:14,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [370992226] [2023-12-25 05:36:14,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:36:14,325 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:36:14,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:36:14,326 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:36:14,327 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-12-25 05:36:14,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:36:14,618 INFO L262 TraceCheckSpWp]: Trace formula consists of 1004 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:36:14,779 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:36:14,920 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-25 05:36:14,920 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:36:14,920 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:36:14,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [370992226] [2023-12-25 05:36:14,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [370992226] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:36:14,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:36:14,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:36:14,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551046785] [2023-12-25 05:36:14,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:36:14,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:36:14,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:36:14,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:36:14,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:36:14,921 INFO L87 Difference]: Start difference. First operand 35195 states and 65497 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-25 05:36:18,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:36:18,153 INFO L93 Difference]: Finished difference Result 70846 states and 143475 transitions. [2023-12-25 05:36:18,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:36:18,153 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 153 [2023-12-25 05:36:18,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:36:18,384 INFO L225 Difference]: With dead ends: 70846 [2023-12-25 05:36:18,385 INFO L226 Difference]: Without dead ends: 35663 [2023-12-25 05:36:18,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:36:18,855 INFO L413 NwaCegarLoop]: 883 mSDtfsCounter, 834 mSDsluCounter, 1341 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 851 SdHoareTripleChecker+Valid, 2224 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:36:18,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [851 Valid, 2224 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 552 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 05:36:18,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35663 states. [2023-12-25 05:36:20,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35663 to 35615. [2023-12-25 05:36:20,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35615 states, 26931 states have (on average 1.5137202480412908) internal successors, (40766), 27621 states have internal predecessors, (40766), 6282 states have call successors, (6282), 2423 states have call predecessors, (6282), 2401 states have return successors, (18852), 6226 states have call predecessors, (18852), 6195 states have call successors, (18852) [2023-12-25 05:36:20,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35615 states to 35615 states and 65900 transitions. [2023-12-25 05:36:20,998 INFO L78 Accepts]: Start accepts. Automaton has 35615 states and 65900 transitions. Word has length 153 [2023-12-25 05:36:20,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:36:20,998 INFO L495 AbstractCegarLoop]: Abstraction has 35615 states and 65900 transitions. [2023-12-25 05:36:20,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-25 05:36:20,998 INFO L276 IsEmpty]: Start isEmpty. Operand 35615 states and 65900 transitions. [2023-12-25 05:36:21,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-12-25 05:36:21,001 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:36:21,001 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:36:21,018 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Ended with exit code 0 [2023-12-25 05:36:21,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:36:21,210 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:36:21,210 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:36:21,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1953668940, now seen corresponding path program 1 times [2023-12-25 05:36:21,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:36:21,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1893426776] [2023-12-25 05:36:21,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:36:21,211 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:36:21,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:36:21,212 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:36:21,247 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-25 05:36:21,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:36:21,528 INFO L262 TraceCheckSpWp]: Trace formula consists of 1006 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:36:21,531 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:36:21,645 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-25 05:36:21,645 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:36:21,646 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:36:21,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1893426776] [2023-12-25 05:36:21,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1893426776] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:36:21,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:36:21,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:36:21,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494000392] [2023-12-25 05:36:21,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:36:21,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:36:21,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:36:21,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:36:21,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:36:21,647 INFO L87 Difference]: Start difference. First operand 35615 states and 65900 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-25 05:36:24,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:36:24,840 INFO L93 Difference]: Finished difference Result 71722 states and 144249 transitions. [2023-12-25 05:36:24,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:36:24,842 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 155 [2023-12-25 05:36:24,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:36:25,114 INFO L225 Difference]: With dead ends: 71722 [2023-12-25 05:36:25,114 INFO L226 Difference]: Without dead ends: 36119 [2023-12-25 05:36:25,621 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:36:25,622 INFO L413 NwaCegarLoop]: 883 mSDtfsCounter, 830 mSDsluCounter, 1341 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 847 SdHoareTripleChecker+Valid, 2224 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:36:25,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [847 Valid, 2224 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 553 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 05:36:25,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36119 states. [2023-12-25 05:36:27,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36119 to 36047. [2023-12-25 05:36:27,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36047 states, 27297 states have (on average 1.506832252628494) internal successors, (41132), 27993 states have internal predecessors, (41132), 6282 states have call successors, (6282), 2483 states have call predecessors, (6282), 2467 states have return successors, (18901), 6226 states have call predecessors, (18901), 6195 states have call successors, (18901) [2023-12-25 05:36:27,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36047 states to 36047 states and 66315 transitions. [2023-12-25 05:36:27,766 INFO L78 Accepts]: Start accepts. Automaton has 36047 states and 66315 transitions. Word has length 155 [2023-12-25 05:36:27,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:36:27,766 INFO L495 AbstractCegarLoop]: Abstraction has 36047 states and 66315 transitions. [2023-12-25 05:36:27,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-25 05:36:27,766 INFO L276 IsEmpty]: Start isEmpty. Operand 36047 states and 66315 transitions. [2023-12-25 05:36:27,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-25 05:36:27,794 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:36:27,794 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:36:27,804 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2023-12-25 05:36:28,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:36:28,004 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:36:28,004 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:36:28,004 INFO L85 PathProgramCache]: Analyzing trace with hash 2045778480, now seen corresponding path program 1 times [2023-12-25 05:36:28,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:36:28,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1942592220] [2023-12-25 05:36:28,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:36:28,006 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:36:28,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:36:28,007 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:36:28,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-12-25 05:36:28,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:36:28,310 INFO L262 TraceCheckSpWp]: Trace formula consists of 1008 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-25 05:36:28,314 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:36:28,684 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-12-25 05:36:28,684 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:36:28,938 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-12-25 05:36:28,939 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:36:28,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1942592220] [2023-12-25 05:36:28,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1942592220] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:36:28,939 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:36:28,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10] total 16 [2023-12-25 05:36:28,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531705742] [2023-12-25 05:36:28,939 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:36:28,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 05:36:28,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:36:28,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 05:36:28,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2023-12-25 05:36:28,940 INFO L87 Difference]: Start difference. First operand 36047 states and 66315 transitions. Second operand has 16 states, 14 states have (on average 12.928571428571429) internal successors, (181), 14 states have internal predecessors, (181), 10 states have call successors, (43), 7 states have call predecessors, (43), 9 states have return successors, (40), 12 states have call predecessors, (40), 10 states have call successors, (40) [2023-12-25 05:36:41,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:36:41,504 INFO L93 Difference]: Finished difference Result 119283 states and 267345 transitions. [2023-12-25 05:36:41,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-25 05:36:41,504 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 12.928571428571429) internal successors, (181), 14 states have internal predecessors, (181), 10 states have call successors, (43), 7 states have call predecessors, (43), 9 states have return successors, (40), 12 states have call predecessors, (40), 10 states have call successors, (40) Word has length 157 [2023-12-25 05:36:41,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:36:42,536 INFO L225 Difference]: With dead ends: 119283 [2023-12-25 05:36:42,536 INFO L226 Difference]: Without dead ends: 83248 [2023-12-25 05:36:43,134 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 301 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=229, Invalid=763, Unknown=0, NotChecked=0, Total=992 [2023-12-25 05:36:43,135 INFO L413 NwaCegarLoop]: 751 mSDtfsCounter, 6504 mSDsluCounter, 2747 mSDsCounter, 0 mSdLazyCounter, 8219 mSolverCounterSat, 2088 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6629 SdHoareTripleChecker+Valid, 3498 SdHoareTripleChecker+Invalid, 10307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2088 IncrementalHoareTripleChecker+Valid, 8219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:36:43,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6629 Valid, 3498 Invalid, 10307 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2088 Valid, 8219 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2023-12-25 05:36:43,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83248 states. [2023-12-25 05:36:47,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83248 to 76308. [2023-12-25 05:36:47,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76308 states, 57908 states have (on average 1.5143158112868689) internal successors, (87691), 59534 states have internal predecessors, (87691), 13170 states have call successors, (13170), 5053 states have call predecessors, (13170), 5229 states have return successors, (51288), 13176 states have call predecessors, (51288), 13049 states have call successors, (51288) [2023-12-25 05:36:49,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76308 states to 76308 states and 152149 transitions. [2023-12-25 05:36:49,241 INFO L78 Accepts]: Start accepts. Automaton has 76308 states and 152149 transitions. Word has length 157 [2023-12-25 05:36:49,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:36:49,242 INFO L495 AbstractCegarLoop]: Abstraction has 76308 states and 152149 transitions. [2023-12-25 05:36:49,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 12.928571428571429) internal successors, (181), 14 states have internal predecessors, (181), 10 states have call successors, (43), 7 states have call predecessors, (43), 9 states have return successors, (40), 12 states have call predecessors, (40), 10 states have call successors, (40) [2023-12-25 05:36:49,242 INFO L276 IsEmpty]: Start isEmpty. Operand 76308 states and 152149 transitions. [2023-12-25 05:36:49,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-25 05:36:49,244 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:36:49,244 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:36:49,252 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2023-12-25 05:36:49,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:36:49,453 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:36:49,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:36:49,453 INFO L85 PathProgramCache]: Analyzing trace with hash -727400508, now seen corresponding path program 1 times [2023-12-25 05:36:49,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:36:49,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1328341712] [2023-12-25 05:36:49,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:36:49,454 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:36:49,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:36:49,455 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:36:49,490 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2023-12-25 05:36:49,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:36:49,804 INFO L262 TraceCheckSpWp]: Trace formula consists of 1031 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:36:49,807 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:36:49,942 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-12-25 05:36:49,943 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:36:50,168 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2023-12-25 05:36:50,168 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:36:50,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1328341712] [2023-12-25 05:36:50,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1328341712] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:36:50,168 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:36:50,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2023-12-25 05:36:50,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069244775] [2023-12-25 05:36:50,169 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:36:50,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-25 05:36:50,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:36:50,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-25 05:36:50,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-12-25 05:36:50,170 INFO L87 Difference]: Start difference. First operand 76308 states and 152149 transitions. Second operand has 12 states, 12 states have (on average 13.833333333333334) internal successors, (166), 12 states have internal predecessors, (166), 7 states have call successors, (40), 6 states have call predecessors, (40), 8 states have return successors, (39), 8 states have call predecessors, (39), 7 states have call successors, (39)