/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_spec13_product22.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 05:18:22,968 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 05:18:23,050 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 05:18:23,054 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 05:18:23,054 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 05:18:23,084 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 05:18:23,084 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 05:18:23,085 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 05:18:23,085 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 05:18:23,088 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 05:18:23,089 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 05:18:23,089 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 05:18:23,089 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 05:18:23,090 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 05:18:23,091 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 05:18:23,091 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 05:18:23,091 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 05:18:23,092 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 05:18:23,092 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 05:18:23,092 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 05:18:23,092 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 05:18:23,093 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 05:18:23,093 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 05:18:23,093 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 05:18:23,093 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 05:18:23,093 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 05:18:23,094 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 05:18:23,094 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 05:18:23,094 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 05:18:23,094 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 05:18:23,095 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 05:18:23,095 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 05:18:23,095 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 05:18:23,095 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 05:18:23,096 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:18:23,096 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 05:18:23,096 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 05:18:23,096 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 05:18:23,096 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 05:18:23,096 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 05:18:23,096 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 05:18:23,097 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 05:18:23,097 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 05:18:23,097 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 05:18:23,097 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 05:18:23,097 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 05:18:23,098 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 05:18:23,301 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 05:18:23,321 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 05:18:23,323 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 05:18:23,324 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 05:18:23,324 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 05:18:23,326 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec13_product22.cil.c [2023-12-25 05:18:24,490 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 05:18:24,818 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 05:18:24,818 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec13_product22.cil.c [2023-12-25 05:18:24,842 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2502ae08/c969d6f90b384e0d9be4efbe2b4c329b/FLAG3b519a799 [2023-12-25 05:18:24,859 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2502ae08/c969d6f90b384e0d9be4efbe2b4c329b [2023-12-25 05:18:24,861 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 05:18:24,863 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 05:18:24,866 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 05:18:24,866 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 05:18:24,870 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 05:18:24,871 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:18:24" (1/1) ... [2023-12-25 05:18:24,872 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cd4fe1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:18:24, skipping insertion in model container [2023-12-25 05:18:24,872 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:18:24" (1/1) ... [2023-12-25 05:18:24,951 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:18:25,102 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_spec13_product22.cil.c[1811,1824] [2023-12-25 05:18:25,428 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:18:25,457 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-25 05:18:25,470 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:18:25,476 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_spec13_product22.cil.c[1811,1824] [2023-12-25 05:18:25,571 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:18:25,576 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 05:18:25,584 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [48] [2023-12-25 05:18:25,585 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [68] [2023-12-25 05:18:25,585 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [77] [2023-12-25 05:18:25,585 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [443] [2023-12-25 05:18:25,586 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [2020] [2023-12-25 05:18:25,586 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [2682] [2023-12-25 05:18:25,586 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [2775] [2023-12-25 05:18:25,586 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2893] [2023-12-25 05:18:25,586 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2931] [2023-12-25 05:18:25,586 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification13_spec.i","") [3279] [2023-12-25 05:18:25,593 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_spec13_product22.cil.c[1811,1824] [2023-12-25 05:18:25,697 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:18:25,727 INFO L206 MainTranslator]: Completed translation [2023-12-25 05:18:25,728 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:18:25 WrapperNode [2023-12-25 05:18:25,728 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 05:18:25,729 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 05:18:25,729 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 05:18:25,729 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 05:18:25,734 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:18:25" (1/1) ... [2023-12-25 05:18:25,763 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:18:25" (1/1) ... [2023-12-25 05:18:25,800 INFO L138 Inliner]: procedures = 94, calls = 344, calls flagged for inlining = 28, calls inlined = 24, statements flattened = 786 [2023-12-25 05:18:25,800 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 05:18:25,801 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 05:18:25,801 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 05:18:25,801 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 05:18:25,810 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:18:25" (1/1) ... [2023-12-25 05:18:25,810 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:18:25" (1/1) ... [2023-12-25 05:18:25,818 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:18:25" (1/1) ... [2023-12-25 05:18:25,849 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 05:18:25,849 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:18:25" (1/1) ... [2023-12-25 05:18:25,850 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:18:25" (1/1) ... [2023-12-25 05:18:25,882 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:18:25" (1/1) ... [2023-12-25 05:18:25,894 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:18:25" (1/1) ... [2023-12-25 05:18:25,900 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:18:25" (1/1) ... [2023-12-25 05:18:25,904 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:18:25" (1/1) ... [2023-12-25 05:18:25,940 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 05:18:25,941 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 05:18:25,941 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 05:18:25,942 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 05:18:25,942 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:18:25" (1/1) ... [2023-12-25 05:18:25,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:18:25,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 05:18:25,994 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 05:18:26,017 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 05:18:26,028 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2023-12-25 05:18:26,028 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2023-12-25 05:18:26,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 05:18:26,028 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2023-12-25 05:18:26,028 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2023-12-25 05:18:26,028 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-12-25 05:18:26,028 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-12-25 05:18:26,028 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2023-12-25 05:18:26,029 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2023-12-25 05:18:26,029 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-12-25 05:18:26,030 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-12-25 05:18:26,032 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-12-25 05:18:26,032 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-12-25 05:18:26,032 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2023-12-25 05:18:26,032 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2023-12-25 05:18:26,032 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-12-25 05:18:26,032 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-12-25 05:18:26,032 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-25 05:18:26,032 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-25 05:18:26,032 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-25 05:18:26,033 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-25 05:18:26,033 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-12-25 05:18:26,033 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-12-25 05:18:26,033 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-12-25 05:18:26,033 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-12-25 05:18:26,033 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-12-25 05:18:26,033 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-12-25 05:18:26,033 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-12-25 05:18:26,033 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-12-25 05:18:26,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 05:18:26,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-25 05:18:26,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-25 05:18:26,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-25 05:18:26,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-12-25 05:18:26,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2023-12-25 05:18:26,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2023-12-25 05:18:26,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2023-12-25 05:18:26,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2023-12-25 05:18:26,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2023-12-25 05:18:26,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2023-12-25 05:18:26,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2023-12-25 05:18:26,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12 [2023-12-25 05:18:26,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#13 [2023-12-25 05:18:26,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#14 [2023-12-25 05:18:26,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#15 [2023-12-25 05:18:26,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#16 [2023-12-25 05:18:26,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#17 [2023-12-25 05:18:26,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#18 [2023-12-25 05:18:26,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#19 [2023-12-25 05:18:26,035 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-12-25 05:18:26,035 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-12-25 05:18:26,036 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-12-25 05:18:26,036 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-12-25 05:18:26,036 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-12-25 05:18:26,036 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-12-25 05:18:26,036 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-12-25 05:18:26,036 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-12-25 05:18:26,037 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-12-25 05:18:26,037 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-12-25 05:18:26,037 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2023-12-25 05:18:26,037 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2023-12-25 05:18:26,038 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-12-25 05:18:26,038 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-12-25 05:18:26,038 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-12-25 05:18:26,038 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-12-25 05:18:26,038 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-12-25 05:18:26,038 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-12-25 05:18:26,038 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__twothirdsfull [2023-12-25 05:18:26,038 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__twothirdsfull [2023-12-25 05:18:26,039 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__weight [2023-12-25 05:18:26,039 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__weight [2023-12-25 05:18:26,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 05:18:26,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 05:18:26,039 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-12-25 05:18:26,039 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-12-25 05:18:26,211 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 05:18:26,214 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 05:18:27,349 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 05:18:27,415 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 05:18:27,416 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-12-25 05:18:27,416 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:18:27 BoogieIcfgContainer [2023-12-25 05:18:27,416 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 05:18:27,418 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 05:18:27,418 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 05:18:27,421 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 05:18:27,421 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 05:18:24" (1/3) ... [2023-12-25 05:18:27,421 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e6a3e5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:18:27, skipping insertion in model container [2023-12-25 05:18:27,421 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:18:25" (2/3) ... [2023-12-25 05:18:27,422 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e6a3e5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:18:27, skipping insertion in model container [2023-12-25 05:18:27,422 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:18:27" (3/3) ... [2023-12-25 05:18:27,423 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec13_product22.cil.c [2023-12-25 05:18:27,437 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 05:18:27,437 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 05:18:27,499 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 05:18:27,504 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;@2859fdf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 05:18:27,504 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 05:18:27,516 INFO L276 IsEmpty]: Start isEmpty. Operand has 577 states, 447 states have (on average 1.7248322147651007) internal successors, (771), 467 states have internal predecessors, (771), 102 states have call successors, (102), 26 states have call predecessors, (102), 26 states have return successors, (102), 98 states have call predecessors, (102), 102 states have call successors, (102) [2023-12-25 05:18:27,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-25 05:18:27,545 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:18:27,545 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:18:27,546 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:18:27,557 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:18:27,558 INFO L85 PathProgramCache]: Analyzing trace with hash 45902878, now seen corresponding path program 1 times [2023-12-25 05:18:27,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:18:27,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [646006040] [2023-12-25 05:18:27,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:18:27,572 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 05:18:27,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:18:27,576 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 05:18:27,610 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 05:18:27,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:18:27,960 INFO L262 TraceCheckSpWp]: Trace formula consists of 763 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-25 05:18:27,967 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:18:27,996 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-12-25 05:18:27,996 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:18:27,997 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:18:27,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [646006040] [2023-12-25 05:18:27,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [646006040] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:18:27,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:18:27,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 05:18:27,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330398797] [2023-12-25 05:18:27,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:18:28,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-25 05:18:28,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:18:28,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-25 05:18:28,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 05:18:28,029 INFO L87 Difference]: Start difference. First operand has 577 states, 447 states have (on average 1.7248322147651007) internal successors, (771), 467 states have internal predecessors, (771), 102 states have call successors, (102), 26 states have call predecessors, (102), 26 states have return successors, (102), 98 states have call predecessors, (102), 102 states have call successors, (102) Second operand has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-25 05:18:28,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:18:28,187 INFO L93 Difference]: Finished difference Result 1138 states and 1939 transitions. [2023-12-25 05:18:28,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-25 05:18:28,190 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 84 [2023-12-25 05:18:28,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:18:28,213 INFO L225 Difference]: With dead ends: 1138 [2023-12-25 05:18:28,213 INFO L226 Difference]: Without dead ends: 571 [2023-12-25 05:18:28,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 05:18:28,269 INFO L413 NwaCegarLoop]: 947 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 947 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:18:28,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 947 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:18:28,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2023-12-25 05:18:28,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 571. [2023-12-25 05:18:28,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 444 states have (on average 1.7004504504504505) internal successors, (755), 462 states have internal predecessors, (755), 102 states have call successors, (102), 26 states have call predecessors, (102), 24 states have return successors, (99), 96 states have call predecessors, (99), 99 states have call successors, (99) [2023-12-25 05:18:28,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 956 transitions. [2023-12-25 05:18:28,346 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 956 transitions. Word has length 84 [2023-12-25 05:18:28,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:18:28,348 INFO L495 AbstractCegarLoop]: Abstraction has 571 states and 956 transitions. [2023-12-25 05:18:28,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-25 05:18:28,348 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 956 transitions. [2023-12-25 05:18:28,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-25 05:18:28,354 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:18:28,354 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:18:28,374 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 05:18:28,566 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 05:18:28,566 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:18:28,567 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:18:28,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1452086658, now seen corresponding path program 1 times [2023-12-25 05:18:28,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:18:28,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [104165517] [2023-12-25 05:18:28,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:18:28,569 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 05:18:28,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:18:28,570 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 05:18:28,599 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 (3)] Waiting until timeout for monitored process [2023-12-25 05:18:28,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:18:28,956 INFO L262 TraceCheckSpWp]: Trace formula consists of 761 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:18:28,961 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:18:29,025 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-25 05:18:29,025 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:18:29,025 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:18:29,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [104165517] [2023-12-25 05:18:29,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [104165517] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:18:29,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:18:29,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:18:29,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737706488] [2023-12-25 05:18:29,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:18:29,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:18:29,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:18:29,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:18:29,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:18:29,033 INFO L87 Difference]: Start difference. First operand 571 states and 956 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-25 05:18:29,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:18:29,197 INFO L93 Difference]: Finished difference Result 1143 states and 1917 transitions. [2023-12-25 05:18:29,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:18:29,198 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 84 [2023-12-25 05:18:29,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:18:29,207 INFO L225 Difference]: With dead ends: 1143 [2023-12-25 05:18:29,207 INFO L226 Difference]: Without dead ends: 575 [2023-12-25 05:18:29,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 81 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 05:18:29,212 INFO L413 NwaCegarLoop]: 926 mSDtfsCounter, 15 mSDsluCounter, 1843 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2769 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:18:29,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2769 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:18:29,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2023-12-25 05:18:29,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 575. [2023-12-25 05:18:29,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 575 states, 447 states have (on average 1.6957494407158837) internal successors, (758), 465 states have internal predecessors, (758), 102 states have call successors, (102), 27 states have call predecessors, (102), 25 states have return successors, (99), 96 states have call predecessors, (99), 99 states have call successors, (99) [2023-12-25 05:18:29,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 959 transitions. [2023-12-25 05:18:29,249 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 959 transitions. Word has length 84 [2023-12-25 05:18:29,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:18:29,250 INFO L495 AbstractCegarLoop]: Abstraction has 575 states and 959 transitions. [2023-12-25 05:18:29,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-25 05:18:29,250 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 959 transitions. [2023-12-25 05:18:29,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-25 05:18:29,253 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:18:29,254 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:18:29,264 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 05:18:29,464 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 05:18:29,464 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:18:29,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:18:29,465 INFO L85 PathProgramCache]: Analyzing trace with hash 707827952, now seen corresponding path program 1 times [2023-12-25 05:18:29,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:18:29,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1550917983] [2023-12-25 05:18:29,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:18:29,466 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 05:18:29,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:18:29,467 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 05:18:29,469 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 05:18:29,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:18:29,723 INFO L262 TraceCheckSpWp]: Trace formula consists of 640 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:18:29,730 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:18:29,786 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-25 05:18:29,786 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:18:29,787 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:18:29,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1550917983] [2023-12-25 05:18:29,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1550917983] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:18:29,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:18:29,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:18:29,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082374466] [2023-12-25 05:18:29,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:18:29,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:18:29,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:18:29,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:18:29,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:18:29,792 INFO L87 Difference]: Start difference. First operand 575 states and 959 transitions. Second operand has 7 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-25 05:18:30,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:18:30,054 INFO L93 Difference]: Finished difference Result 1158 states and 1934 transitions. [2023-12-25 05:18:30,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:18:30,054 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 74 [2023-12-25 05:18:30,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:18:30,059 INFO L225 Difference]: With dead ends: 1158 [2023-12-25 05:18:30,059 INFO L226 Difference]: Without dead ends: 588 [2023-12-25 05:18:30,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 68 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 05:18:30,062 INFO L413 NwaCegarLoop]: 927 mSDtfsCounter, 114 mSDsluCounter, 4535 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 5462 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:18:30,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 5462 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:18:30,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2023-12-25 05:18:30,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 587. [2023-12-25 05:18:30,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 456 states have (on average 1.6929824561403508) internal successors, (772), 476 states have internal predecessors, (772), 103 states have call successors, (103), 27 states have call predecessors, (103), 27 states have return successors, (105), 97 states have call predecessors, (105), 100 states have call successors, (105) [2023-12-25 05:18:30,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 980 transitions. [2023-12-25 05:18:30,087 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 980 transitions. Word has length 74 [2023-12-25 05:18:30,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:18:30,087 INFO L495 AbstractCegarLoop]: Abstraction has 587 states and 980 transitions. [2023-12-25 05:18:30,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-25 05:18:30,088 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 980 transitions. [2023-12-25 05:18:30,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-25 05:18:30,091 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:18:30,091 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:18:30,103 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 05:18:30,299 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 05:18:30,299 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:18:30,300 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:18:30,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1272469943, now seen corresponding path program 1 times [2023-12-25 05:18:30,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:18:30,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2050638580] [2023-12-25 05:18:30,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:18:30,301 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 05:18:30,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:18:30,302 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 05:18:30,303 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 05:18:30,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:18:30,668 INFO L262 TraceCheckSpWp]: Trace formula consists of 764 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:18:30,672 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:18:30,725 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-12-25 05:18:30,733 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:18:30,733 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:18:30,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2050638580] [2023-12-25 05:18:30,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2050638580] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:18:30,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:18:30,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:18:30,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621549459] [2023-12-25 05:18:30,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:18:30,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:18:30,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:18:30,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:18:30,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:18:30,739 INFO L87 Difference]: Start difference. First operand 587 states and 980 transitions. Second operand has 7 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-25 05:18:31,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:18:31,026 INFO L93 Difference]: Finished difference Result 1176 states and 1965 transitions. [2023-12-25 05:18:31,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:18:31,027 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 87 [2023-12-25 05:18:31,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:18:31,031 INFO L225 Difference]: With dead ends: 1176 [2023-12-25 05:18:31,031 INFO L226 Difference]: Without dead ends: 596 [2023-12-25 05:18:31,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 81 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 05:18:31,034 INFO L413 NwaCegarLoop]: 937 mSDtfsCounter, 101 mSDsluCounter, 4565 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 5502 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:18:31,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 5502 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:18:31,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2023-12-25 05:18:31,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 587. [2023-12-25 05:18:31,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 456 states have (on average 1.6929824561403508) internal successors, (772), 476 states have internal predecessors, (772), 103 states have call successors, (103), 27 states have call predecessors, (103), 27 states have return successors, (105), 97 states have call predecessors, (105), 100 states have call successors, (105) [2023-12-25 05:18:31,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 980 transitions. [2023-12-25 05:18:31,056 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 980 transitions. Word has length 87 [2023-12-25 05:18:31,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:18:31,056 INFO L495 AbstractCegarLoop]: Abstraction has 587 states and 980 transitions. [2023-12-25 05:18:31,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-25 05:18:31,056 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 980 transitions. [2023-12-25 05:18:31,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-25 05:18:31,059 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:18:31,059 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:18:31,072 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 (5)] Forceful destruction successful, exit code 0 [2023-12-25 05:18:31,273 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 05:18:31,273 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:18:31,273 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:18:31,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1804037887, now seen corresponding path program 1 times [2023-12-25 05:18:31,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:18:31,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [929190582] [2023-12-25 05:18:31,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:18:31,274 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 05:18:31,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:18:31,277 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 05:18:31,277 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 05:18:31,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:18:31,528 INFO L262 TraceCheckSpWp]: Trace formula consists of 641 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:18:31,531 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:18:31,562 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-25 05:18:31,563 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:18:31,563 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:18:31,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [929190582] [2023-12-25 05:18:31,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [929190582] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:18:31,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:18:31,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:18:31,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050084566] [2023-12-25 05:18:31,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:18:31,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:18:31,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:18:31,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:18:31,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:18:31,565 INFO L87 Difference]: Start difference. First operand 587 states and 980 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-25 05:18:31,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:18:31,687 INFO L93 Difference]: Finished difference Result 1170 states and 1954 transitions. [2023-12-25 05:18:31,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:18:31,688 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) Word has length 75 [2023-12-25 05:18:31,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:18:31,692 INFO L225 Difference]: With dead ends: 1170 [2023-12-25 05:18:31,693 INFO L226 Difference]: Without dead ends: 588 [2023-12-25 05:18:31,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 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 05:18:31,699 INFO L413 NwaCegarLoop]: 926 mSDtfsCounter, 22 mSDsluCounter, 1843 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 2769 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:18:31,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 2769 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:18:31,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2023-12-25 05:18:31,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 588. [2023-12-25 05:18:31,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 458 states have (on average 1.6921397379912664) internal successors, (775), 477 states have internal predecessors, (775), 102 states have call successors, (102), 28 states have call predecessors, (102), 27 states have return successors, (101), 96 states have call predecessors, (101), 99 states have call successors, (101) [2023-12-25 05:18:31,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 978 transitions. [2023-12-25 05:18:31,719 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 978 transitions. Word has length 75 [2023-12-25 05:18:31,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:18:31,720 INFO L495 AbstractCegarLoop]: Abstraction has 588 states and 978 transitions. [2023-12-25 05:18:31,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-25 05:18:31,720 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 978 transitions. [2023-12-25 05:18:31,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-25 05:18:31,722 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:18:31,722 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-25 05:18:31,734 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 05:18:31,931 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 05:18:31,931 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:18:31,931 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:18:31,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1555055561, now seen corresponding path program 1 times [2023-12-25 05:18:31,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:18:31,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1282326355] [2023-12-25 05:18:31,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:18:31,932 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 05:18:31,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:18:31,933 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 05:18:31,966 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 05:18:32,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:18:32,190 INFO L262 TraceCheckSpWp]: Trace formula consists of 643 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:18:32,193 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:18:32,242 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-25 05:18:32,242 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:18:32,242 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:18:32,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1282326355] [2023-12-25 05:18:32,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1282326355] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:18:32,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:18:32,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:18:32,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647739045] [2023-12-25 05:18:32,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:18:32,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:18:32,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:18:32,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:18:32,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:18:32,244 INFO L87 Difference]: Start difference. First operand 588 states and 978 transitions. Second operand has 7 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-25 05:18:32,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:18:32,505 INFO L93 Difference]: Finished difference Result 1174 states and 1958 transitions. [2023-12-25 05:18:32,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:18:32,506 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 77 [2023-12-25 05:18:32,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:18:32,510 INFO L225 Difference]: With dead ends: 1174 [2023-12-25 05:18:32,510 INFO L226 Difference]: Without dead ends: 596 [2023-12-25 05:18:32,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 71 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 05:18:32,513 INFO L413 NwaCegarLoop]: 937 mSDtfsCounter, 100 mSDsluCounter, 4564 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 5501 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:18:32,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 5501 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:18:32,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2023-12-25 05:18:32,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 588. [2023-12-25 05:18:32,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 458 states have (on average 1.6921397379912664) internal successors, (775), 477 states have internal predecessors, (775), 102 states have call successors, (102), 28 states have call predecessors, (102), 27 states have return successors, (101), 96 states have call predecessors, (101), 99 states have call successors, (101) [2023-12-25 05:18:32,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 978 transitions. [2023-12-25 05:18:32,531 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 978 transitions. Word has length 77 [2023-12-25 05:18:32,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:18:32,532 INFO L495 AbstractCegarLoop]: Abstraction has 588 states and 978 transitions. [2023-12-25 05:18:32,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-25 05:18:32,532 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 978 transitions. [2023-12-25 05:18:32,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-25 05:18:32,534 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:18:32,534 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:18:32,547 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 (7)] Forceful destruction successful, exit code 0 [2023-12-25 05:18:32,743 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 05:18:32,743 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:18:32,743 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:18:32,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1446065724, now seen corresponding path program 1 times [2023-12-25 05:18:32,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:18:32,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2027054690] [2023-12-25 05:18:32,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:18:32,744 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 05:18:32,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:18:32,745 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 05:18:32,746 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 (8)] Waiting until timeout for monitored process [2023-12-25 05:18:33,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:18:33,078 INFO L262 TraceCheckSpWp]: Trace formula consists of 767 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:18:33,081 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:18:33,113 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-12-25 05:18:33,113 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:18:33,113 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:18:33,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2027054690] [2023-12-25 05:18:33,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2027054690] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:18:33,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:18:33,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:18:33,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756106224] [2023-12-25 05:18:33,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:18:33,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:18:33,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:18:33,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:18:33,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:18:33,115 INFO L87 Difference]: Start difference. First operand 588 states and 978 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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 05:18:33,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:18:33,322 INFO L93 Difference]: Finished difference Result 1193 states and 1995 transitions. [2023-12-25 05:18:33,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:18:33,323 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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 90 [2023-12-25 05:18:33,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:18:33,327 INFO L225 Difference]: With dead ends: 1193 [2023-12-25 05:18:33,327 INFO L226 Difference]: Without dead ends: 615 [2023-12-25 05:18:33,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 87 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 05:18:33,330 INFO L413 NwaCegarLoop]: 888 mSDtfsCounter, 110 mSDsluCounter, 1727 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 2615 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:18:33,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 2615 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:18:33,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2023-12-25 05:18:33,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 607. [2023-12-25 05:18:33,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 607 states, 476 states have (on average 1.6869747899159664) internal successors, (803), 495 states have internal predecessors, (803), 102 states have call successors, (102), 29 states have call predecessors, (102), 28 states have return successors, (100), 96 states have call predecessors, (100), 99 states have call successors, (100) [2023-12-25 05:18:33,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 1005 transitions. [2023-12-25 05:18:33,348 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 1005 transitions. Word has length 90 [2023-12-25 05:18:33,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:18:33,349 INFO L495 AbstractCegarLoop]: Abstraction has 607 states and 1005 transitions. [2023-12-25 05:18:33,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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 05:18:33,349 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 1005 transitions. [2023-12-25 05:18:33,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-25 05:18:33,351 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:18:33,351 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-25 05:18:33,367 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 (8)] Ended with exit code 0 [2023-12-25 05:18:33,561 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 05:18:33,562 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:18:33,562 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:18:33,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1281144405, now seen corresponding path program 1 times [2023-12-25 05:18:33,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:18:33,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [590674464] [2023-12-25 05:18:33,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:18:33,563 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 05:18:33,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:18:33,564 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 05:18:33,566 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 05:18:33,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:18:33,809 INFO L262 TraceCheckSpWp]: Trace formula consists of 644 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:18:33,812 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:18:33,869 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-25 05:18:33,869 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:18:33,869 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:18:33,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [590674464] [2023-12-25 05:18:33,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [590674464] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:18:33,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:18:33,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:18:33,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769723119] [2023-12-25 05:18:33,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:18:33,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:18:33,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:18:33,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:18:33,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:18:33,872 INFO L87 Difference]: Start difference. First operand 607 states and 1005 transitions. Second operand has 7 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-25 05:18:34,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:18:34,093 INFO L93 Difference]: Finished difference Result 1220 states and 2024 transitions. [2023-12-25 05:18:34,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:18:34,094 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 79 [2023-12-25 05:18:34,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:18:34,098 INFO L225 Difference]: With dead ends: 1220 [2023-12-25 05:18:34,099 INFO L226 Difference]: Without dead ends: 623 [2023-12-25 05:18:34,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 73 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 05:18:34,102 INFO L413 NwaCegarLoop]: 927 mSDtfsCounter, 149 mSDsluCounter, 4498 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 5425 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:18:34,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 5425 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:18:34,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2023-12-25 05:18:34,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 607. [2023-12-25 05:18:34,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 607 states, 476 states have (on average 1.6869747899159664) internal successors, (803), 495 states have internal predecessors, (803), 102 states have call successors, (102), 29 states have call predecessors, (102), 28 states have return successors, (100), 96 states have call predecessors, (100), 99 states have call successors, (100) [2023-12-25 05:18:34,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 1005 transitions. [2023-12-25 05:18:34,122 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 1005 transitions. Word has length 79 [2023-12-25 05:18:34,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:18:34,122 INFO L495 AbstractCegarLoop]: Abstraction has 607 states and 1005 transitions. [2023-12-25 05:18:34,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-25 05:18:34,123 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 1005 transitions. [2023-12-25 05:18:34,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-25 05:18:34,124 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:18:34,125 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-25 05:18:34,135 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 05:18:34,336 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 05:18:34,336 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:18:34,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:18:34,336 INFO L85 PathProgramCache]: Analyzing trace with hash -159775908, now seen corresponding path program 1 times [2023-12-25 05:18:34,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:18:34,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1294067331] [2023-12-25 05:18:34,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:18:34,337 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 05:18:34,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:18:34,338 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 05:18:34,339 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 (10)] Waiting until timeout for monitored process [2023-12-25 05:18:34,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:18:34,609 INFO L262 TraceCheckSpWp]: Trace formula consists of 646 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:18:34,612 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:18:34,668 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-25 05:18:34,668 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:18:34,668 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:18:34,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1294067331] [2023-12-25 05:18:34,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1294067331] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:18:34,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:18:34,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:18:34,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356905916] [2023-12-25 05:18:34,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:18:34,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:18:34,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:18:34,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:18:34,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:18:34,670 INFO L87 Difference]: Start difference. First operand 607 states and 1005 transitions. Second operand has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-25 05:18:34,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:18:34,959 INFO L93 Difference]: Finished difference Result 1214 states and 2014 transitions. [2023-12-25 05:18:34,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:18:34,959 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 80 [2023-12-25 05:18:34,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:18:34,963 INFO L225 Difference]: With dead ends: 1214 [2023-12-25 05:18:34,963 INFO L226 Difference]: Without dead ends: 617 [2023-12-25 05:18:34,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 73 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 05:18:34,967 INFO L413 NwaCegarLoop]: 917 mSDtfsCounter, 103 mSDsluCounter, 5407 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 6324 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:18:34,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 6324 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:18:34,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2023-12-25 05:18:34,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 611. [2023-12-25 05:18:34,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 611 states, 480 states have (on average 1.68125) internal successors, (807), 499 states have internal predecessors, (807), 102 states have call successors, (102), 29 states have call predecessors, (102), 28 states have return successors, (100), 96 states have call predecessors, (100), 99 states have call successors, (100) [2023-12-25 05:18:34,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 1009 transitions. [2023-12-25 05:18:34,983 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 1009 transitions. Word has length 80 [2023-12-25 05:18:34,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:18:34,983 INFO L495 AbstractCegarLoop]: Abstraction has 611 states and 1009 transitions. [2023-12-25 05:18:34,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-25 05:18:34,984 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 1009 transitions. [2023-12-25 05:18:34,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-25 05:18:34,986 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:18:34,986 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:18:34,997 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 (10)] Ended with exit code 0 [2023-12-25 05:18:35,194 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 05:18:35,194 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:18:35,199 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:18:35,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1790041221, now seen corresponding path program 1 times [2023-12-25 05:18:35,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:18:35,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1649273846] [2023-12-25 05:18:35,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:18:35,200 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 05:18:35,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:18:35,201 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 05:18:35,209 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 05:18:35,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:18:35,548 INFO L262 TraceCheckSpWp]: Trace formula consists of 770 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:18:35,551 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:18:35,613 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-12-25 05:18:35,613 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:18:35,613 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:18:35,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1649273846] [2023-12-25 05:18:35,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1649273846] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:18:35,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:18:35,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:18:35,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717202443] [2023-12-25 05:18:35,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:18:35,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:18:35,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:18:35,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:18:35,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:18:35,615 INFO L87 Difference]: Start difference. First operand 611 states and 1009 transitions. Second operand has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-25 05:18:35,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:18:35,959 INFO L93 Difference]: Finished difference Result 1224 states and 2026 transitions. [2023-12-25 05:18:35,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:18:35,960 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 93 [2023-12-25 05:18:35,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:18:35,964 INFO L225 Difference]: With dead ends: 1224 [2023-12-25 05:18:35,964 INFO L226 Difference]: Without dead ends: 623 [2023-12-25 05:18:35,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:18:35,967 INFO L413 NwaCegarLoop]: 917 mSDtfsCounter, 102 mSDsluCounter, 5407 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 6324 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 05:18:35,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 6324 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 05:18:35,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2023-12-25 05:18:35,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 617. [2023-12-25 05:18:35,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 617 states, 486 states have (on average 1.6728395061728396) internal successors, (813), 505 states have internal predecessors, (813), 102 states have call successors, (102), 29 states have call predecessors, (102), 28 states have return successors, (100), 96 states have call predecessors, (100), 99 states have call successors, (100) [2023-12-25 05:18:35,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 617 states to 617 states and 1015 transitions. [2023-12-25 05:18:35,983 INFO L78 Accepts]: Start accepts. Automaton has 617 states and 1015 transitions. Word has length 93 [2023-12-25 05:18:35,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:18:35,984 INFO L495 AbstractCegarLoop]: Abstraction has 617 states and 1015 transitions. [2023-12-25 05:18:35,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-25 05:18:35,984 INFO L276 IsEmpty]: Start isEmpty. Operand 617 states and 1015 transitions. [2023-12-25 05:18:35,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-25 05:18:35,986 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:18:35,986 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:18:35,999 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 05:18:36,199 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 05:18:36,199 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:18:36,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:18:36,200 INFO L85 PathProgramCache]: Analyzing trace with hash -536897903, now seen corresponding path program 1 times [2023-12-25 05:18:36,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:18:36,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2125920192] [2023-12-25 05:18:36,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:18:36,201 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 05:18:36,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:18:36,202 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 05:18:36,203 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 05:18:36,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:18:36,481 INFO L262 TraceCheckSpWp]: Trace formula consists of 771 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:18:36,485 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:18:36,562 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-12-25 05:18:36,562 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:18:36,562 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:18:36,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2125920192] [2023-12-25 05:18:36,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2125920192] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:18:36,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:18:36,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:18:36,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594308534] [2023-12-25 05:18:36,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:18:36,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:18:36,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:18:36,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:18:36,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:18:36,564 INFO L87 Difference]: Start difference. First operand 617 states and 1015 transitions. Second operand has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-25 05:18:36,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:18:36,914 INFO L93 Difference]: Finished difference Result 1238 states and 2042 transitions. [2023-12-25 05:18:36,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:18:36,914 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 94 [2023-12-25 05:18:36,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:18:36,918 INFO L225 Difference]: With dead ends: 1238 [2023-12-25 05:18:36,918 INFO L226 Difference]: Without dead ends: 631 [2023-12-25 05:18:36,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:18:36,922 INFO L413 NwaCegarLoop]: 917 mSDtfsCounter, 102 mSDsluCounter, 5407 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 6324 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 05:18:36,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 6324 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 05:18:36,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2023-12-25 05:18:36,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 625. [2023-12-25 05:18:36,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 625 states, 494 states have (on average 1.6619433198380567) internal successors, (821), 513 states have internal predecessors, (821), 102 states have call successors, (102), 29 states have call predecessors, (102), 28 states have return successors, (100), 96 states have call predecessors, (100), 99 states have call successors, (100) [2023-12-25 05:18:36,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 1023 transitions. [2023-12-25 05:18:36,946 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 1023 transitions. Word has length 94 [2023-12-25 05:18:36,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:18:36,946 INFO L495 AbstractCegarLoop]: Abstraction has 625 states and 1023 transitions. [2023-12-25 05:18:36,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-25 05:18:36,946 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 1023 transitions. [2023-12-25 05:18:36,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-25 05:18:36,949 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:18:36,949 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:18:36,967 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 05:18:37,161 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 05:18:37,161 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:18:37,161 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:18:37,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1734476896, now seen corresponding path program 1 times [2023-12-25 05:18:37,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:18:37,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1436528085] [2023-12-25 05:18:37,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:18:37,162 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 05:18:37,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:18:37,163 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 05:18:37,166 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 05:18:37,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:18:37,486 INFO L262 TraceCheckSpWp]: Trace formula consists of 772 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:18:37,488 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:18:37,536 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-12-25 05:18:37,536 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:18:37,536 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:18:37,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1436528085] [2023-12-25 05:18:37,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1436528085] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:18:37,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:18:37,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:18:37,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017794294] [2023-12-25 05:18:37,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:18:37,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:18:37,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:18:37,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:18:37,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:18:37,538 INFO L87 Difference]: Start difference. First operand 625 states and 1023 transitions. Second operand has 7 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-25 05:18:37,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:18:37,788 INFO L93 Difference]: Finished difference Result 1174 states and 1920 transitions. [2023-12-25 05:18:37,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:18:37,788 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 95 [2023-12-25 05:18:37,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:18:37,792 INFO L225 Difference]: With dead ends: 1174 [2023-12-25 05:18:37,792 INFO L226 Difference]: Without dead ends: 635 [2023-12-25 05:18:37,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 90 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 05:18:37,795 INFO L413 NwaCegarLoop]: 929 mSDtfsCounter, 96 mSDsluCounter, 4545 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 5474 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:18:37,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 5474 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:18:37,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2023-12-25 05:18:37,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 631. [2023-12-25 05:18:37,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 631 states, 497 states have (on average 1.6579476861167002) internal successors, (824), 518 states have internal predecessors, (824), 103 states have call successors, (103), 29 states have call predecessors, (103), 30 states have return successors, (104), 97 states have call predecessors, (104), 100 states have call successors, (104) [2023-12-25 05:18:37,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 1031 transitions. [2023-12-25 05:18:37,818 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 1031 transitions. Word has length 95 [2023-12-25 05:18:37,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:18:37,819 INFO L495 AbstractCegarLoop]: Abstraction has 631 states and 1031 transitions. [2023-12-25 05:18:37,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-25 05:18:37,819 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 1031 transitions. [2023-12-25 05:18:37,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-25 05:18:37,821 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:18:37,821 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:18:37,834 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 05:18:38,035 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 05:18:38,035 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:18:38,036 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:18:38,036 INFO L85 PathProgramCache]: Analyzing trace with hash 693423161, now seen corresponding path program 1 times [2023-12-25 05:18:38,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:18:38,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [935122559] [2023-12-25 05:18:38,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:18:38,036 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 05:18:38,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:18:38,037 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 05:18:38,073 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 05:18:38,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:18:38,381 INFO L262 TraceCheckSpWp]: Trace formula consists of 773 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:18:38,384 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:18:38,405 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-25 05:18:38,405 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:18:38,405 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:18:38,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [935122559] [2023-12-25 05:18:38,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [935122559] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:18:38,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:18:38,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:18:38,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055654554] [2023-12-25 05:18:38,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:18:38,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:18:38,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:18:38,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:18:38,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:18:38,407 INFO L87 Difference]: Start difference. First operand 631 states and 1031 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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 05:18:38,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:18:38,513 INFO L93 Difference]: Finished difference Result 1236 states and 2023 transitions. [2023-12-25 05:18:38,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:18:38,514 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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 96 [2023-12-25 05:18:38,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:18:38,518 INFO L225 Difference]: With dead ends: 1236 [2023-12-25 05:18:38,519 INFO L226 Difference]: Without dead ends: 614 [2023-12-25 05:18:38,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 94 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 05:18:38,522 INFO L413 NwaCegarLoop]: 925 mSDtfsCounter, 24 mSDsluCounter, 1843 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 2768 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:18:38,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 2768 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:18:38,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2023-12-25 05:18:38,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 614. [2023-12-25 05:18:38,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 614 states, 483 states have (on average 1.6521739130434783) internal successors, (798), 502 states have internal predecessors, (798), 102 states have call successors, (102), 29 states have call predecessors, (102), 28 states have return successors, (100), 96 states have call predecessors, (100), 99 states have call successors, (100) [2023-12-25 05:18:38,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 1000 transitions. [2023-12-25 05:18:38,540 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 1000 transitions. Word has length 96 [2023-12-25 05:18:38,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:18:38,540 INFO L495 AbstractCegarLoop]: Abstraction has 614 states and 1000 transitions. [2023-12-25 05:18:38,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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 05:18:38,541 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 1000 transitions. [2023-12-25 05:18:38,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-25 05:18:38,543 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:18:38,543 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:18:38,557 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 05:18:38,754 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 05:18:38,754 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:18:38,755 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:18:38,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1074951350, now seen corresponding path program 1 times [2023-12-25 05:18:38,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:18:38,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [885271667] [2023-12-25 05:18:38,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:18:38,756 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 05:18:38,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:18:38,757 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 05:18:38,758 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 05:18:39,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:18:39,056 INFO L262 TraceCheckSpWp]: Trace formula consists of 774 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:18:39,060 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:18:39,106 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-12-25 05:18:39,106 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:18:39,107 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:18:39,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [885271667] [2023-12-25 05:18:39,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [885271667] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:18:39,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:18:39,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:18:39,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742995670] [2023-12-25 05:18:39,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:18:39,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:18:39,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:18:39,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:18:39,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:18:39,108 INFO L87 Difference]: Start difference. First operand 614 states and 1000 transitions. Second operand has 7 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-25 05:18:39,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:18:39,342 INFO L93 Difference]: Finished difference Result 1157 states and 1888 transitions. [2023-12-25 05:18:39,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:18:39,342 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 97 [2023-12-25 05:18:39,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:18:39,346 INFO L225 Difference]: With dead ends: 1157 [2023-12-25 05:18:39,346 INFO L226 Difference]: Without dead ends: 607 [2023-12-25 05:18:39,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 92 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 05:18:39,349 INFO L413 NwaCegarLoop]: 909 mSDtfsCounter, 85 mSDsluCounter, 4459 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 5368 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:18:39,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 5368 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:18:39,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2023-12-25 05:18:39,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 605. [2023-12-25 05:18:39,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 605 states, 474 states have (on average 1.649789029535865) internal successors, (782), 493 states have internal predecessors, (782), 102 states have call successors, (102), 29 states have call predecessors, (102), 28 states have return successors, (100), 96 states have call predecessors, (100), 99 states have call successors, (100) [2023-12-25 05:18:39,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 984 transitions. [2023-12-25 05:18:39,365 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 984 transitions. Word has length 97 [2023-12-25 05:18:39,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:18:39,366 INFO L495 AbstractCegarLoop]: Abstraction has 605 states and 984 transitions. [2023-12-25 05:18:39,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-25 05:18:39,366 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 984 transitions. [2023-12-25 05:18:39,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-25 05:18:39,368 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:18:39,368 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:18:39,380 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 (15)] Ended with exit code 0 [2023-12-25 05:18:39,580 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 05:18:39,580 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:18:39,581 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:18:39,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1941749350, now seen corresponding path program 1 times [2023-12-25 05:18:39,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:18:39,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [120560178] [2023-12-25 05:18:39,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:18:39,581 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 05:18:39,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:18:39,582 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 05:18:39,584 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 05:18:39,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:18:39,863 INFO L262 TraceCheckSpWp]: Trace formula consists of 773 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:18:39,866 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:18:39,912 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-12-25 05:18:39,913 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:18:39,913 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:18:39,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [120560178] [2023-12-25 05:18:39,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [120560178] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:18:39,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:18:39,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:18:39,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26602257] [2023-12-25 05:18:39,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:18:39,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:18:39,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:18:39,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:18:39,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:18:39,914 INFO L87 Difference]: Start difference. First operand 605 states and 984 transitions. Second operand has 7 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-25 05:18:40,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:18:40,118 INFO L93 Difference]: Finished difference Result 1148 states and 1872 transitions. [2023-12-25 05:18:40,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:18:40,118 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 97 [2023-12-25 05:18:40,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:18:40,122 INFO L225 Difference]: With dead ends: 1148 [2023-12-25 05:18:40,122 INFO L226 Difference]: Without dead ends: 594 [2023-12-25 05:18:40,125 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 92 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 05:18:40,126 INFO L413 NwaCegarLoop]: 901 mSDtfsCounter, 97 mSDsluCounter, 4403 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 5304 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:18:40,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 5304 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:18:40,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2023-12-25 05:18:40,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 592. [2023-12-25 05:18:40,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 592 states, 461 states have (on average 1.6334056399132322) internal successors, (753), 480 states have internal predecessors, (753), 102 states have call successors, (102), 29 states have call predecessors, (102), 28 states have return successors, (99), 96 states have call predecessors, (99), 99 states have call successors, (99) [2023-12-25 05:18:40,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 954 transitions. [2023-12-25 05:18:40,141 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 954 transitions. Word has length 97 [2023-12-25 05:18:40,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:18:40,141 INFO L495 AbstractCegarLoop]: Abstraction has 592 states and 954 transitions. [2023-12-25 05:18:40,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-25 05:18:40,141 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 954 transitions. [2023-12-25 05:18:40,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-25 05:18:40,143 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:18:40,143 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:18:40,156 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 05:18:40,355 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 05:18:40,356 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:18:40,356 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:18:40,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1498345309, now seen corresponding path program 1 times [2023-12-25 05:18:40,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:18:40,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2110933866] [2023-12-25 05:18:40,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:18:40,357 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 05:18:40,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:18:40,358 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 05:18:40,391 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 05:18:40,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:18:40,595 INFO L262 TraceCheckSpWp]: Trace formula consists of 653 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:18:40,597 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:18:40,620 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-25 05:18:40,620 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:18:40,620 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:18:40,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2110933866] [2023-12-25 05:18:40,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2110933866] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:18:40,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:18:40,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:18:40,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175091584] [2023-12-25 05:18:40,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:18:40,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:18:40,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:18:40,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:18:40,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:18:40,623 INFO L87 Difference]: Start difference. First operand 592 states and 954 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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 05:18:40,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:18:40,784 INFO L93 Difference]: Finished difference Result 1197 states and 1927 transitions. [2023-12-25 05:18:40,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:18:40,785 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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 87 [2023-12-25 05:18:40,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:18:40,789 INFO L225 Difference]: With dead ends: 1197 [2023-12-25 05:18:40,789 INFO L226 Difference]: Without dead ends: 592 [2023-12-25 05:18:40,791 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 05:18:40,792 INFO L413 NwaCegarLoop]: 870 mSDtfsCounter, 74 mSDsluCounter, 1713 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 2583 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:18:40,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 2583 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:18:40,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2023-12-25 05:18:40,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 592. [2023-12-25 05:18:40,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 592 states, 461 states have (on average 1.616052060737527) internal successors, (745), 479 states have internal predecessors, (745), 102 states have call successors, (102), 30 states have call predecessors, (102), 28 states have return successors, (99), 96 states have call predecessors, (99), 99 states have call successors, (99) [2023-12-25 05:18:40,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 946 transitions. [2023-12-25 05:18:40,808 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 946 transitions. Word has length 87 [2023-12-25 05:18:40,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:18:40,808 INFO L495 AbstractCegarLoop]: Abstraction has 592 states and 946 transitions. [2023-12-25 05:18:40,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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 05:18:40,809 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 946 transitions. [2023-12-25 05:18:40,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-25 05:18:40,811 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:18:40,811 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:18:40,822 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 (17)] Forceful destruction successful, exit code 0 [2023-12-25 05:18:41,019 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 05:18:41,019 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:18:41,019 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:18:41,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1411229058, now seen corresponding path program 1 times [2023-12-25 05:18:41,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:18:41,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [461214789] [2023-12-25 05:18:41,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:18:41,020 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 05:18:41,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:18:41,021 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 05:18:41,038 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 05:18:41,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:18:41,255 INFO L262 TraceCheckSpWp]: Trace formula consists of 654 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 05:18:41,257 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:18:41,481 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-25 05:18:41,482 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:18:41,482 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:18:41,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [461214789] [2023-12-25 05:18:41,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [461214789] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:18:41,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:18:41,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 05:18:41,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107567434] [2023-12-25 05:18:41,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:18:41,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:18:41,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:18:41,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:18:41,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:18:41,484 INFO L87 Difference]: Start difference. First operand 592 states and 946 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-25 05:18:41,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:18:41,800 INFO L93 Difference]: Finished difference Result 1660 states and 2716 transitions. [2023-12-25 05:18:41,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:18:41,800 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 88 [2023-12-25 05:18:41,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:18:41,807 INFO L225 Difference]: With dead ends: 1660 [2023-12-25 05:18:41,807 INFO L226 Difference]: Without dead ends: 1125 [2023-12-25 05:18:41,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 86 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 05:18:41,810 INFO L413 NwaCegarLoop]: 939 mSDtfsCounter, 842 mSDsluCounter, 836 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 842 SdHoareTripleChecker+Valid, 1775 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 05:18:41,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [842 Valid, 1775 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 05:18:41,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1125 states. [2023-12-25 05:18:41,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1125 to 1060. [2023-12-25 05:18:41,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1060 states, 836 states have (on average 1.6399521531100478) internal successors, (1371), 863 states have internal predecessors, (1371), 176 states have call successors, (176), 50 states have call predecessors, (176), 47 states have return successors, (179), 161 states have call predecessors, (179), 172 states have call successors, (179) [2023-12-25 05:18:41,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1060 states to 1060 states and 1726 transitions. [2023-12-25 05:18:41,851 INFO L78 Accepts]: Start accepts. Automaton has 1060 states and 1726 transitions. Word has length 88 [2023-12-25 05:18:41,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:18:41,851 INFO L495 AbstractCegarLoop]: Abstraction has 1060 states and 1726 transitions. [2023-12-25 05:18:41,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-25 05:18:41,852 INFO L276 IsEmpty]: Start isEmpty. Operand 1060 states and 1726 transitions. [2023-12-25 05:18:41,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-12-25 05:18:41,856 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:18:41,856 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:18:41,867 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 05:18:42,067 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 05:18:42,067 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:18:42,067 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:18:42,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1573453342, now seen corresponding path program 1 times [2023-12-25 05:18:42,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:18:42,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1022966548] [2023-12-25 05:18:42,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:18:42,068 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 05:18:42,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:18:42,069 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 05:18:42,070 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 05:18:42,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:18:42,549 INFO L262 TraceCheckSpWp]: Trace formula consists of 1126 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:18:42,554 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:18:42,957 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-12-25 05:18:42,958 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:18:42,958 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:18:42,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1022966548] [2023-12-25 05:18:42,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1022966548] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:18:42,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:18:42,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:18:42,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498775090] [2023-12-25 05:18:42,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:18:42,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:18:42,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:18:42,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:18:42,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:18:42,960 INFO L87 Difference]: Start difference. First operand 1060 states and 1726 transitions. Second operand has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 5 states have call successors, (23), 5 states have call predecessors, (23), 5 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2023-12-25 05:18:48,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:18:48,075 INFO L93 Difference]: Finished difference Result 2818 states and 4667 transitions. [2023-12-25 05:18:48,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-25 05:18:48,076 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 5 states have call successors, (23), 5 states have call predecessors, (23), 5 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) Word has length 173 [2023-12-25 05:18:48,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:18:48,087 INFO L225 Difference]: With dead ends: 2818 [2023-12-25 05:18:48,087 INFO L226 Difference]: Without dead ends: 1815 [2023-12-25 05:18:48,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:18:48,093 INFO L413 NwaCegarLoop]: 577 mSDtfsCounter, 4783 mSDsluCounter, 1139 mSDsCounter, 0 mSdLazyCounter, 4820 mSolverCounterSat, 881 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4978 SdHoareTripleChecker+Valid, 1716 SdHoareTripleChecker+Invalid, 5701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 881 IncrementalHoareTripleChecker+Valid, 4820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-12-25 05:18:48,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4978 Valid, 1716 Invalid, 5701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [881 Valid, 4820 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2023-12-25 05:18:48,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1815 states. [2023-12-25 05:18:48,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1815 to 1589. [2023-12-25 05:18:48,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1589 states, 1257 states have (on average 1.6467780429594272) internal successors, (2070), 1293 states have internal predecessors, (2070), 263 states have call successors, (263), 70 states have call predecessors, (263), 68 states have return successors, (282), 240 states have call predecessors, (282), 258 states have call successors, (282) [2023-12-25 05:18:48,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1589 states to 1589 states and 2615 transitions. [2023-12-25 05:18:48,164 INFO L78 Accepts]: Start accepts. Automaton has 1589 states and 2615 transitions. Word has length 173 [2023-12-25 05:18:48,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:18:48,164 INFO L495 AbstractCegarLoop]: Abstraction has 1589 states and 2615 transitions. [2023-12-25 05:18:48,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 5 states have call successors, (23), 5 states have call predecessors, (23), 5 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2023-12-25 05:18:48,165 INFO L276 IsEmpty]: Start isEmpty. Operand 1589 states and 2615 transitions. [2023-12-25 05:18:48,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-12-25 05:18:48,169 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:18:48,169 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:18:48,194 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 (19)] Forceful destruction successful, exit code 0 [2023-12-25 05:18:48,380 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 05:18:48,380 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:18:48,381 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:18:48,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1186314046, now seen corresponding path program 1 times [2023-12-25 05:18:48,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:18:48,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1204561252] [2023-12-25 05:18:48,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:18:48,381 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 05:18:48,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:18:48,382 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 05:18:48,384 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 05:18:48,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:18:48,839 INFO L262 TraceCheckSpWp]: Trace formula consists of 1127 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:18:48,843 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:18:48,944 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-12-25 05:18:48,944 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:18:48,944 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:18:48,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1204561252] [2023-12-25 05:18:48,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1204561252] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:18:48,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:18:48,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:18:48,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519170246] [2023-12-25 05:18:48,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:18:48,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:18:48,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:18:48,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:18:48,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:18:48,946 INFO L87 Difference]: Start difference. First operand 1589 states and 2615 transitions. Second operand has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 5 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2023-12-25 05:18:52,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:18:52,772 INFO L93 Difference]: Finished difference Result 5627 states and 9417 transitions. [2023-12-25 05:18:52,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-25 05:18:52,773 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 5 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) Word has length 176 [2023-12-25 05:18:52,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:18:52,797 INFO L225 Difference]: With dead ends: 5627 [2023-12-25 05:18:52,797 INFO L226 Difference]: Without dead ends: 4095 [2023-12-25 05:18:52,807 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2023-12-25 05:18:52,808 INFO L413 NwaCegarLoop]: 611 mSDtfsCounter, 2129 mSDsluCounter, 959 mSDsCounter, 0 mSdLazyCounter, 4259 mSolverCounterSat, 682 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2229 SdHoareTripleChecker+Valid, 1570 SdHoareTripleChecker+Invalid, 4941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 682 IncrementalHoareTripleChecker+Valid, 4259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:18:52,808 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2229 Valid, 1570 Invalid, 4941 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [682 Valid, 4259 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-12-25 05:18:52,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4095 states. [2023-12-25 05:18:53,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4095 to 3991. [2023-12-25 05:18:53,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3991 states, 3029 states have (on average 1.5912842522284583) internal successors, (4820), 3117 states have internal predecessors, (4820), 805 states have call successors, (805), 139 states have call predecessors, (805), 156 states have return successors, (994), 769 states have call predecessors, (994), 797 states have call successors, (994) [2023-12-25 05:18:53,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3991 states to 3991 states and 6619 transitions. [2023-12-25 05:18:53,088 INFO L78 Accepts]: Start accepts. Automaton has 3991 states and 6619 transitions. Word has length 176 [2023-12-25 05:18:53,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:18:53,088 INFO L495 AbstractCegarLoop]: Abstraction has 3991 states and 6619 transitions. [2023-12-25 05:18:53,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 5 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2023-12-25 05:18:53,089 INFO L276 IsEmpty]: Start isEmpty. Operand 3991 states and 6619 transitions. [2023-12-25 05:18:53,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-25 05:18:53,093 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:18:53,094 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:18:53,113 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 (20)] Forceful destruction successful, exit code 0 [2023-12-25 05:18:53,308 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 05:18:53,308 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:18:53,309 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:18:53,309 INFO L85 PathProgramCache]: Analyzing trace with hash 1805898079, now seen corresponding path program 1 times [2023-12-25 05:18:53,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:18:53,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1867297894] [2023-12-25 05:18:53,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:18:53,309 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 05:18:53,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:18:53,310 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 05:18:53,311 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 05:18:53,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:18:53,611 INFO L262 TraceCheckSpWp]: Trace formula consists of 830 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-25 05:18:53,614 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:18:53,822 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-25 05:18:53,822 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:18:54,210 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-12-25 05:18:54,210 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:18:54,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1867297894] [2023-12-25 05:18:54,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1867297894] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-25 05:18:54,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-25 05:18:54,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 14 [2023-12-25 05:18:54,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789014889] [2023-12-25 05:18:54,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:18:54,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:18:54,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:18:54,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:18:54,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2023-12-25 05:18:54,212 INFO L87 Difference]: Start difference. First operand 3991 states and 6619 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 5 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14) [2023-12-25 05:18:57,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:18:57,392 INFO L93 Difference]: Finished difference Result 14703 states and 25678 transitions. [2023-12-25 05:18:57,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-25 05:18:57,393 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 5 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14) Word has length 127 [2023-12-25 05:18:57,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:18:57,460 INFO L225 Difference]: With dead ends: 14703 [2023-12-25 05:18:57,460 INFO L226 Difference]: Without dead ends: 10280 [2023-12-25 05:18:57,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2023-12-25 05:18:57,492 INFO L413 NwaCegarLoop]: 1003 mSDtfsCounter, 2126 mSDsluCounter, 1913 mSDsCounter, 0 mSdLazyCounter, 2109 mSolverCounterSat, 390 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2303 SdHoareTripleChecker+Valid, 2916 SdHoareTripleChecker+Invalid, 2499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 390 IncrementalHoareTripleChecker+Valid, 2109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-25 05:18:57,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2303 Valid, 2916 Invalid, 2499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [390 Valid, 2109 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-25 05:18:57,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10280 states. [2023-12-25 05:18:58,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10280 to 8839. [2023-12-25 05:18:58,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8839 states, 6509 states have (on average 1.5936395759717314) internal successors, (10373), 6764 states have internal predecessors, (10373), 1992 states have call successors, (1992), 254 states have call predecessors, (1992), 337 states have return successors, (2860), 1938 states have call predecessors, (2860), 1978 states have call successors, (2860) [2023-12-25 05:18:58,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8839 states to 8839 states and 15225 transitions. [2023-12-25 05:18:58,284 INFO L78 Accepts]: Start accepts. Automaton has 8839 states and 15225 transitions. Word has length 127 [2023-12-25 05:18:58,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:18:58,285 INFO L495 AbstractCegarLoop]: Abstraction has 8839 states and 15225 transitions. [2023-12-25 05:18:58,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 5 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14) [2023-12-25 05:18:58,285 INFO L276 IsEmpty]: Start isEmpty. Operand 8839 states and 15225 transitions. [2023-12-25 05:18:58,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-25 05:18:58,289 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:18:58,289 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:18:58,302 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 (21)] Forceful destruction successful, exit code 0 [2023-12-25 05:18:58,501 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 05:18:58,502 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:18:58,502 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:18:58,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1796673123, now seen corresponding path program 1 times [2023-12-25 05:18:58,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:18:58,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [693003176] [2023-12-25 05:18:58,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:18:58,503 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 05:18:58,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:18:58,504 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 05:18:58,536 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 05:18:58,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:18:58,846 INFO L262 TraceCheckSpWp]: Trace formula consists of 831 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:18:58,849 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:18:58,968 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-25 05:18:58,968 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:18:58,969 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:18:58,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [693003176] [2023-12-25 05:18:58,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [693003176] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:18:58,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:18:58,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:18:58,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246134107] [2023-12-25 05:18:58,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:18:58,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:18:58,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:18:58,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:18:58,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:18:58,970 INFO L87 Difference]: Start difference. First operand 8839 states and 15225 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 5 states have call successors, (16), 4 states have call predecessors, (16), 5 states have return successors, (14), 4 states have call predecessors, (14), 5 states have call successors, (14) [2023-12-25 05:19:04,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:19:04,658 INFO L93 Difference]: Finished difference Result 29223 states and 52682 transitions. [2023-12-25 05:19:04,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-25 05:19:04,660 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 5 states have call successors, (16), 4 states have call predecessors, (16), 5 states have return successors, (14), 4 states have call predecessors, (14), 5 states have call successors, (14) Word has length 128 [2023-12-25 05:19:04,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:19:04,839 INFO L225 Difference]: With dead ends: 29223 [2023-12-25 05:19:04,840 INFO L226 Difference]: Without dead ends: 20441 [2023-12-25 05:19:04,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2023-12-25 05:19:04,895 INFO L413 NwaCegarLoop]: 654 mSDtfsCounter, 2835 mSDsluCounter, 1971 mSDsCounter, 0 mSdLazyCounter, 5761 mSolverCounterSat, 713 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2933 SdHoareTripleChecker+Valid, 2625 SdHoareTripleChecker+Invalid, 6474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 713 IncrementalHoareTripleChecker+Valid, 5761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-12-25 05:19:04,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2933 Valid, 2625 Invalid, 6474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [713 Valid, 5761 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-12-25 05:19:04,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20441 states. [2023-12-25 05:19:06,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20441 to 18913. [2023-12-25 05:19:06,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18913 states, 13889 states have (on average 1.5870833033335734) internal successors, (22043), 14499 states have internal predecessors, (22043), 4263 states have call successors, (4263), 611 states have call predecessors, (4263), 760 states have return successors, (6149), 4074 states have call predecessors, (6149), 4243 states have call successors, (6149) [2023-12-25 05:19:06,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18913 states to 18913 states and 32455 transitions. [2023-12-25 05:19:06,749 INFO L78 Accepts]: Start accepts. Automaton has 18913 states and 32455 transitions. Word has length 128 [2023-12-25 05:19:06,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:19:06,749 INFO L495 AbstractCegarLoop]: Abstraction has 18913 states and 32455 transitions. [2023-12-25 05:19:06,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 5 states have call successors, (16), 4 states have call predecessors, (16), 5 states have return successors, (14), 4 states have call predecessors, (14), 5 states have call successors, (14) [2023-12-25 05:19:06,749 INFO L276 IsEmpty]: Start isEmpty. Operand 18913 states and 32455 transitions. [2023-12-25 05:19:06,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-25 05:19:06,754 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:19:06,754 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:19:06,768 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 05:19:06,967 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 05:19:06,967 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:19:06,967 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:19:06,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1290894479, now seen corresponding path program 1 times [2023-12-25 05:19:06,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:19:06,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [838025339] [2023-12-25 05:19:06,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:19:06,968 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 05:19:06,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:19:06,969 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 05:19:06,970 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 05:19:07,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:19:07,284 INFO L262 TraceCheckSpWp]: Trace formula consists of 841 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-25 05:19:07,287 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:19:07,462 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-25 05:19:07,462 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:19:07,462 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:19:07,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [838025339] [2023-12-25 05:19:07,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [838025339] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:19:07,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:19:07,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 05:19:07,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507066165] [2023-12-25 05:19:07,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:19:07,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 05:19:07,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:19:07,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 05:19:07,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-12-25 05:19:07,464 INFO L87 Difference]: Start difference. First operand 18913 states and 32455 transitions. Second operand has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 8 states have internal predecessors, (87), 5 states have call successors, (17), 5 states have call predecessors, (17), 6 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) [2023-12-25 05:19:15,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:19:15,758 INFO L93 Difference]: Finished difference Result 55573 states and 101983 transitions. [2023-12-25 05:19:15,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-25 05:19:15,760 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 8 states have internal predecessors, (87), 5 states have call successors, (17), 5 states have call predecessors, (17), 6 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) Word has length 134 [2023-12-25 05:19:15,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:19:16,038 INFO L225 Difference]: With dead ends: 55573 [2023-12-25 05:19:16,039 INFO L226 Difference]: Without dead ends: 36669 [2023-12-25 05:19:16,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2023-12-25 05:19:16,206 INFO L413 NwaCegarLoop]: 573 mSDtfsCounter, 2833 mSDsluCounter, 1694 mSDsCounter, 0 mSdLazyCounter, 8234 mSolverCounterSat, 691 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2953 SdHoareTripleChecker+Valid, 2267 SdHoareTripleChecker+Invalid, 8925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 691 IncrementalHoareTripleChecker+Valid, 8234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2023-12-25 05:19:16,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2953 Valid, 2267 Invalid, 8925 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [691 Valid, 8234 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2023-12-25 05:19:16,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36669 states. [2023-12-25 05:19:19,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36669 to 33993. [2023-12-25 05:19:19,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33993 states, 24385 states have (on average 1.5579659626819766) internal successors, (37991), 25620 states have internal predecessors, (37991), 8171 states have call successors, (8171), 1011 states have call predecessors, (8171), 1436 states have return successors, (13018), 8045 states have call predecessors, (13018), 8139 states have call successors, (13018) [2023-12-25 05:19:19,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33993 states to 33993 states and 59180 transitions. [2023-12-25 05:19:19,478 INFO L78 Accepts]: Start accepts. Automaton has 33993 states and 59180 transitions. Word has length 134 [2023-12-25 05:19:19,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:19:19,478 INFO L495 AbstractCegarLoop]: Abstraction has 33993 states and 59180 transitions. [2023-12-25 05:19:19,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 8 states have internal predecessors, (87), 5 states have call successors, (17), 5 states have call predecessors, (17), 6 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) [2023-12-25 05:19:19,479 INFO L276 IsEmpty]: Start isEmpty. Operand 33993 states and 59180 transitions. [2023-12-25 05:19:19,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-25 05:19:19,482 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:19:19,482 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:19:19,498 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 05:19:19,695 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 05:19:19,696 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:19:19,696 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:19:19,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1507141672, now seen corresponding path program 1 times [2023-12-25 05:19:19,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:19:19,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [982242949] [2023-12-25 05:19:19,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:19:19,697 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 05:19:19,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:19:19,699 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 05:19:19,724 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 05:19:20,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:19:20,099 INFO L262 TraceCheckSpWp]: Trace formula consists of 842 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:19:20,103 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:19:20,240 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-25 05:19:20,240 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:19:20,240 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:19:20,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [982242949] [2023-12-25 05:19:20,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [982242949] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:19:20,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:19:20,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:19:20,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670152376] [2023-12-25 05:19:20,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:19:20,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:19:20,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:19:20,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:19:20,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:19:20,242 INFO L87 Difference]: Start difference. First operand 33993 states and 59180 transitions. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 5 states have call successors, (17), 5 states have call predecessors, (17), 5 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2023-12-25 05:19:29,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:19:29,454 INFO L93 Difference]: Finished difference Result 108328 states and 209139 transitions. [2023-12-25 05:19:29,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:19:29,455 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 5 states have call successors, (17), 5 states have call predecessors, (17), 5 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 135 [2023-12-25 05:19:29,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:19:30,321 INFO L225 Difference]: With dead ends: 108328 [2023-12-25 05:19:30,322 INFO L226 Difference]: Without dead ends: 74392 [2023-12-25 05:19:30,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:19:30,561 INFO L413 NwaCegarLoop]: 574 mSDtfsCounter, 3462 mSDsluCounter, 495 mSDsCounter, 0 mSdLazyCounter, 2921 mSolverCounterSat, 796 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3582 SdHoareTripleChecker+Valid, 1069 SdHoareTripleChecker+Invalid, 3717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 796 IncrementalHoareTripleChecker+Valid, 2921 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-12-25 05:19:30,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3582 Valid, 1069 Invalid, 3717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [796 Valid, 2921 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-12-25 05:19:30,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74392 states. [2023-12-25 05:19:36,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74392 to 70588. [2023-12-25 05:19:36,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70588 states, 49276 states have (on average 1.5352910138809968) internal successors, (75653), 52110 states have internal predecessors, (75653), 18275 states have call successors, (18275), 1821 states have call predecessors, (18275), 3036 states have return successors, (33966), 18416 states have call predecessors, (33966), 18219 states have call successors, (33966) [2023-12-25 05:19:37,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70588 states to 70588 states and 127894 transitions. [2023-12-25 05:19:37,340 INFO L78 Accepts]: Start accepts. Automaton has 70588 states and 127894 transitions. Word has length 135 [2023-12-25 05:19:37,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:19:37,340 INFO L495 AbstractCegarLoop]: Abstraction has 70588 states and 127894 transitions. [2023-12-25 05:19:37,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 5 states have call successors, (17), 5 states have call predecessors, (17), 5 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2023-12-25 05:19:37,341 INFO L276 IsEmpty]: Start isEmpty. Operand 70588 states and 127894 transitions. [2023-12-25 05:19:37,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-25 05:19:37,344 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:19:37,344 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:19:37,356 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 05:19:37,557 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 05:19:37,557 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:19:37,558 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:19:37,558 INFO L85 PathProgramCache]: Analyzing trace with hash 431155954, now seen corresponding path program 1 times [2023-12-25 05:19:37,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:19:37,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1305176915] [2023-12-25 05:19:37,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:19:37,559 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 05:19:37,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:19:37,560 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 05:19:37,593 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 05:19:38,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:19:38,198 INFO L262 TraceCheckSpWp]: Trace formula consists of 843 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:19:38,202 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:19:38,348 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-25 05:19:38,348 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:19:38,348 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:19:38,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1305176915] [2023-12-25 05:19:38,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1305176915] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:19:38,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:19:38,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:19:38,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549882021] [2023-12-25 05:19:38,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:19:38,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:19:38,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:19:38,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:19:38,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:19:38,351 INFO L87 Difference]: Start difference. First operand 70588 states and 127894 transitions. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 5 states have call successors, (17), 5 states have call predecessors, (17), 5 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2023-12-25 05:20:01,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:20:01,139 INFO L93 Difference]: Finished difference Result 240573 states and 508331 transitions. [2023-12-25 05:20:01,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:20:01,139 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 5 states have call successors, (17), 5 states have call predecessors, (17), 5 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 136 [2023-12-25 05:20:01,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:20:03,292 INFO L225 Difference]: With dead ends: 240573 [2023-12-25 05:20:03,292 INFO L226 Difference]: Without dead ends: 170042 [2023-12-25 05:20:04,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:20:04,461 INFO L413 NwaCegarLoop]: 580 mSDtfsCounter, 2844 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 3000 mSolverCounterSat, 618 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2966 SdHoareTripleChecker+Valid, 1162 SdHoareTripleChecker+Invalid, 3618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 618 IncrementalHoareTripleChecker+Valid, 3000 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:20:04,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2966 Valid, 1162 Invalid, 3618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [618 Valid, 3000 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-12-25 05:20:04,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170042 states.