/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_spec14_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 05:23:40,670 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 05:23:40,720 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 05:23:40,723 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 05:23:40,723 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 05:23:40,743 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 05:23:40,743 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 05:23:40,743 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 05:23:40,744 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 05:23:40,747 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 05:23:40,747 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 05:23:40,747 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 05:23:40,747 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 05:23:40,748 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 05:23:40,748 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 05:23:40,749 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 05:23:40,749 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 05:23:40,749 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 05:23:40,749 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 05:23:40,749 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 05:23:40,749 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 05:23:40,750 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 05:23:40,750 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 05:23:40,750 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 05:23:40,750 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 05:23:40,750 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 05:23:40,750 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 05:23:40,751 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 05:23:40,751 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 05:23:40,751 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 05:23:40,751 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 05:23:40,752 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 05:23:40,752 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 05:23:40,752 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 05:23:40,752 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:23:40,752 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 05:23:40,752 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 05:23:40,752 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 05:23:40,752 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 05:23:40,752 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 05:23:40,753 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 05:23:40,753 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 05:23:40,753 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 05:23:40,753 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 05:23:40,754 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 05:23:40,754 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 05:23:40,754 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 05:23:40,948 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 05:23:40,978 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 05:23:40,982 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 05:23:40,983 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 05:23:40,984 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 05:23:40,985 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec14_product32.cil.c [2023-12-25 05:23:42,007 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 05:23:42,226 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 05:23:42,226 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec14_product32.cil.c [2023-12-25 05:23:42,256 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a032cf903/40af78b2fe3c411dba0ef56ddbbc3c84/FLAG4cda6408c [2023-12-25 05:23:42,265 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a032cf903/40af78b2fe3c411dba0ef56ddbbc3c84 [2023-12-25 05:23:42,267 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 05:23:42,268 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 05:23:42,268 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 05:23:42,269 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 05:23:42,274 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 05:23:42,274 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:23:42" (1/1) ... [2023-12-25 05:23:42,275 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51251824 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:23:42, skipping insertion in model container [2023-12-25 05:23:42,275 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:23:42" (1/1) ... [2023-12-25 05:23:42,330 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:23:42,764 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_spec14_product32.cil.c[71521,71534] [2023-12-25 05:23:42,768 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:23:42,782 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-25 05:23:42,816 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:23:42,874 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_spec14_product32.cil.c[71521,71534] [2023-12-25 05:23:42,875 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:23:42,878 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 05:23:42,885 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [48] [2023-12-25 05:23:42,886 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [169] [2023-12-25 05:23:42,886 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [187] [2023-12-25 05:23:42,886 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [545] [2023-12-25 05:23:42,886 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [911] [2023-12-25 05:23:42,886 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [946] [2023-12-25 05:23:42,886 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [1042] [2023-12-25 05:23:42,886 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1709] [2023-12-25 05:23:42,886 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3370] [2023-12-25 05:23:42,887 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification14_spec.i","") [3379] [2023-12-25 05:23:42,934 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_spec14_product32.cil.c[71521,71534] [2023-12-25 05:23:42,934 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:23:42,957 INFO L206 MainTranslator]: Completed translation [2023-12-25 05:23:42,957 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:23:42 WrapperNode [2023-12-25 05:23:42,958 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 05:23:42,959 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 05:23:42,959 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 05:23:42,959 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 05:23:42,965 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:23:42" (1/1) ... [2023-12-25 05:23:42,987 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:23:42" (1/1) ... [2023-12-25 05:23:43,032 INFO L138 Inliner]: procedures = 98, calls = 348, calls flagged for inlining = 29, calls inlined = 25, statements flattened = 850 [2023-12-25 05:23:43,032 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 05:23:43,033 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 05:23:43,033 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 05:23:43,033 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 05:23:43,041 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:23:42" (1/1) ... [2023-12-25 05:23:43,041 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:23:42" (1/1) ... [2023-12-25 05:23:43,048 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:23:42" (1/1) ... [2023-12-25 05:23:43,066 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 05:23:43,066 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:23:42" (1/1) ... [2023-12-25 05:23:43,067 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:23:42" (1/1) ... [2023-12-25 05:23:43,096 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:23:42" (1/1) ... [2023-12-25 05:23:43,120 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:23:42" (1/1) ... [2023-12-25 05:23:43,125 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:23:42" (1/1) ... [2023-12-25 05:23:43,128 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:23:42" (1/1) ... [2023-12-25 05:23:43,151 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 05:23:43,152 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 05:23:43,152 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 05:23:43,152 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 05:23:43,153 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:23:42" (1/1) ... [2023-12-25 05:23:43,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:23:43,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 05:23:43,187 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 05:23:43,196 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 05:23:43,211 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2023-12-25 05:23:43,211 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2023-12-25 05:23:43,212 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-12-25 05:23:43,212 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-12-25 05:23:43,212 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-12-25 05:23:43,212 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-12-25 05:23:43,212 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2023-12-25 05:23:43,212 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2023-12-25 05:23:43,212 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-25 05:23:43,213 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-25 05:23:43,213 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-12-25 05:23:43,214 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-12-25 05:23:43,215 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-12-25 05:23:43,215 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-12-25 05:23:43,215 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2023-12-25 05:23:43,215 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2023-12-25 05:23:43,215 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2023-12-25 05:23:43,215 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2023-12-25 05:23:43,215 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-12-25 05:23:43,215 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-12-25 05:23:43,215 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-12-25 05:23:43,215 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-12-25 05:23:43,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 05:23:43,215 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2023-12-25 05:23:43,215 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2023-12-25 05:23:43,215 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-12-25 05:23:43,215 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-12-25 05:23:43,216 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2023-12-25 05:23:43,216 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2023-12-25 05:23:43,216 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2023-12-25 05:23:43,216 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2023-12-25 05:23:43,216 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-12-25 05:23:43,216 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-12-25 05:23:43,216 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-25 05:23:43,216 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-25 05:23:43,216 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2023-12-25 05:23:43,216 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2023-12-25 05:23:43,216 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-12-25 05:23:43,216 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-12-25 05:23:43,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 05:23:43,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-25 05:23:43,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-25 05:23:43,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-25 05:23:43,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-12-25 05:23:43,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2023-12-25 05:23:43,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2023-12-25 05:23:43,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2023-12-25 05:23:43,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2023-12-25 05:23:43,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2023-12-25 05:23:43,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2023-12-25 05:23:43,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2023-12-25 05:23:43,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12 [2023-12-25 05:23:43,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#13 [2023-12-25 05:23:43,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#14 [2023-12-25 05:23:43,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#15 [2023-12-25 05:23:43,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#16 [2023-12-25 05:23:43,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#17 [2023-12-25 05:23:43,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#18 [2023-12-25 05:23:43,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#19 [2023-12-25 05:23:43,218 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-12-25 05:23:43,219 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-12-25 05:23:43,219 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-12-25 05:23:43,220 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-12-25 05:23:43,220 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-12-25 05:23:43,220 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-12-25 05:23:43,220 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-12-25 05:23:43,220 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-12-25 05:23:43,220 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-12-25 05:23:43,220 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-12-25 05:23:43,220 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-12-25 05:23:43,220 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-12-25 05:23:43,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 05:23:43,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 05:23:43,221 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-12-25 05:23:43,221 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-12-25 05:23:43,221 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__executivefloor [2023-12-25 05:23:43,221 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__executivefloor [2023-12-25 05:23:43,380 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 05:23:43,382 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 05:23:44,241 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 05:23:44,293 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 05:23:44,293 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-25 05:23:44,294 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:23:44 BoogieIcfgContainer [2023-12-25 05:23:44,294 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 05:23:44,295 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 05:23:44,295 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 05:23:44,297 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 05:23:44,297 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 05:23:42" (1/3) ... [2023-12-25 05:23:44,298 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4464ad23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:23:44, skipping insertion in model container [2023-12-25 05:23:44,298 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:23:42" (2/3) ... [2023-12-25 05:23:44,298 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4464ad23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:23:44, skipping insertion in model container [2023-12-25 05:23:44,298 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:23:44" (3/3) ... [2023-12-25 05:23:44,299 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec14_product32.cil.c [2023-12-25 05:23:44,309 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 05:23:44,310 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 05:23:44,343 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 05:23:44,347 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;@b33b298, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 05:23:44,347 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 05:23:44,352 INFO L276 IsEmpty]: Start isEmpty. Operand has 559 states, 427 states have (on average 1.6955503512880563) internal successors, (724), 445 states have internal predecessors, (724), 103 states have call successors, (103), 27 states have call predecessors, (103), 27 states have return successors, (103), 100 states have call predecessors, (103), 103 states have call successors, (103) [2023-12-25 05:23:44,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-25 05:23:44,359 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:23:44,360 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:23:44,360 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:23:44,363 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:23:44,363 INFO L85 PathProgramCache]: Analyzing trace with hash 2102155152, now seen corresponding path program 1 times [2023-12-25 05:23:44,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:23:44,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [6552860] [2023-12-25 05:23:44,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:23:44,372 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 05:23:44,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:23:44,374 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 05:23:44,404 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 05:23:44,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:23:44,668 INFO L262 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:23:44,673 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:23:44,745 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:23:44,745 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:23:44,746 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:23:44,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [6552860] [2023-12-25 05:23:44,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [6552860] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:23:44,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:23:44,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:23:44,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979840031] [2023-12-25 05:23:44,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:23:44,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:23:44,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:23:44,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:23:44,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:23:44,769 INFO L87 Difference]: Start difference. First operand has 559 states, 427 states have (on average 1.6955503512880563) internal successors, (724), 445 states have internal predecessors, (724), 103 states have call successors, (103), 27 states have call predecessors, (103), 27 states have return successors, (103), 100 states have call predecessors, (103), 103 states have call successors, (103) Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:23:44,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:23:44,928 INFO L93 Difference]: Finished difference Result 1117 states and 1866 transitions. [2023-12-25 05:23:44,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:23:44,930 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 52 [2023-12-25 05:23:44,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:23:44,941 INFO L225 Difference]: With dead ends: 1117 [2023-12-25 05:23:44,942 INFO L226 Difference]: Without dead ends: 558 [2023-12-25 05:23:44,947 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 49 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 05:23:44,949 INFO L413 NwaCegarLoop]: 896 mSDtfsCounter, 15 mSDsluCounter, 1785 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2681 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:23:44,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2681 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:23:44,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2023-12-25 05:23:44,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 558. [2023-12-25 05:23:44,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 558 states, 427 states have (on average 1.6791569086651055) internal successors, (717), 444 states have internal predecessors, (717), 103 states have call successors, (103), 28 states have call predecessors, (103), 27 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2023-12-25 05:23:45,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 922 transitions. [2023-12-25 05:23:45,005 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 922 transitions. Word has length 52 [2023-12-25 05:23:45,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:23:45,005 INFO L495 AbstractCegarLoop]: Abstraction has 558 states and 922 transitions. [2023-12-25 05:23:45,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:23:45,005 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 922 transitions. [2023-12-25 05:23:45,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-25 05:23:45,008 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:23:45,008 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:23:45,017 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 05:23:45,212 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 05:23:45,213 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:23:45,213 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:23:45,213 INFO L85 PathProgramCache]: Analyzing trace with hash -56518762, now seen corresponding path program 1 times [2023-12-25 05:23:45,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:23:45,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2116591913] [2023-12-25 05:23:45,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:23:45,214 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 05:23:45,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:23:45,215 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 05:23:45,217 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 05:23:45,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:23:45,418 INFO L262 TraceCheckSpWp]: Trace formula consists of 539 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:23:45,421 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:23:45,441 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:23:45,442 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:23:45,442 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:23:45,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2116591913] [2023-12-25 05:23:45,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2116591913] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:23:45,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:23:45,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:23:45,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791036004] [2023-12-25 05:23:45,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:23:45,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:23:45,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:23:45,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:23:45,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:23:45,444 INFO L87 Difference]: Start difference. First operand 558 states and 922 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:23:45,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:23:45,571 INFO L93 Difference]: Finished difference Result 1104 states and 1826 transitions. [2023-12-25 05:23:45,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:23:45,571 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 53 [2023-12-25 05:23:45,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:23:45,575 INFO L225 Difference]: With dead ends: 1104 [2023-12-25 05:23:45,575 INFO L226 Difference]: Without dead ends: 558 [2023-12-25 05:23:45,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 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 05:23:45,578 INFO L413 NwaCegarLoop]: 891 mSDtfsCounter, 12 mSDsluCounter, 1773 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2664 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:23:45,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2664 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:23:45,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2023-12-25 05:23:45,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 558. [2023-12-25 05:23:45,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 558 states, 427 states have (on average 1.6768149882903982) internal successors, (716), 444 states have internal predecessors, (716), 103 states have call successors, (103), 28 states have call predecessors, (103), 27 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2023-12-25 05:23:45,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 921 transitions. [2023-12-25 05:23:45,596 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 921 transitions. Word has length 53 [2023-12-25 05:23:45,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:23:45,596 INFO L495 AbstractCegarLoop]: Abstraction has 558 states and 921 transitions. [2023-12-25 05:23:45,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:23:45,596 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 921 transitions. [2023-12-25 05:23:45,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-25 05:23:45,598 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:23:45,598 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:23:45,608 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 05:23:45,803 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 05:23:45,804 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:23:45,804 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:23:45,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1305644748, now seen corresponding path program 1 times [2023-12-25 05:23:45,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:23:45,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1385038114] [2023-12-25 05:23:45,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:23:45,805 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 05:23:45,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:23:45,806 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 05:23:45,807 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 05:23:45,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:23:46,008 INFO L262 TraceCheckSpWp]: Trace formula consists of 540 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:23:46,010 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:23:46,036 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:23:46,036 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:23:46,036 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:23:46,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1385038114] [2023-12-25 05:23:46,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1385038114] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:23:46,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:23:46,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:23:46,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006590617] [2023-12-25 05:23:46,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:23:46,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:23:46,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:23:46,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:23:46,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:23:46,038 INFO L87 Difference]: Start difference. First operand 558 states and 921 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:23:46,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:23:46,130 INFO L93 Difference]: Finished difference Result 1104 states and 1825 transitions. [2023-12-25 05:23:46,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:23:46,131 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 54 [2023-12-25 05:23:46,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:23:46,134 INFO L225 Difference]: With dead ends: 1104 [2023-12-25 05:23:46,134 INFO L226 Difference]: Without dead ends: 558 [2023-12-25 05:23:46,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 51 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 05:23:46,138 INFO L413 NwaCegarLoop]: 891 mSDtfsCounter, 10 mSDsluCounter, 1773 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2664 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:23:46,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2664 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:23:46,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2023-12-25 05:23:46,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 558. [2023-12-25 05:23:46,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 558 states, 427 states have (on average 1.674473067915691) internal successors, (715), 444 states have internal predecessors, (715), 103 states have call successors, (103), 28 states have call predecessors, (103), 27 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2023-12-25 05:23:46,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 920 transitions. [2023-12-25 05:23:46,160 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 920 transitions. Word has length 54 [2023-12-25 05:23:46,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:23:46,160 INFO L495 AbstractCegarLoop]: Abstraction has 558 states and 920 transitions. [2023-12-25 05:23:46,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:23:46,160 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 920 transitions. [2023-12-25 05:23:46,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-25 05:23:46,161 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:23:46,162 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:23:46,168 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 05:23:46,367 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 05:23:46,370 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:23:46,370 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:23:46,370 INFO L85 PathProgramCache]: Analyzing trace with hash 144618706, now seen corresponding path program 1 times [2023-12-25 05:23:46,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:23:46,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [613710268] [2023-12-25 05:23:46,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:23:46,371 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 05:23:46,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:23:46,372 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 05:23:46,375 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 05:23:46,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:23:46,585 INFO L262 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:23:46,587 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:23:46,609 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:23:46,610 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:23:46,610 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:23:46,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [613710268] [2023-12-25 05:23:46,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [613710268] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:23:46,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:23:46,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:23:46,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817825499] [2023-12-25 05:23:46,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:23:46,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:23:46,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:23:46,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:23:46,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:23:46,612 INFO L87 Difference]: Start difference. First operand 558 states and 920 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:23:46,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:23:46,696 INFO L93 Difference]: Finished difference Result 1104 states and 1824 transitions. [2023-12-25 05:23:46,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:23:46,696 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 55 [2023-12-25 05:23:46,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:23:46,699 INFO L225 Difference]: With dead ends: 1104 [2023-12-25 05:23:46,699 INFO L226 Difference]: Without dead ends: 558 [2023-12-25 05:23:46,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 52 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 05:23:46,701 INFO L413 NwaCegarLoop]: 891 mSDtfsCounter, 8 mSDsluCounter, 1773 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2664 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:23:46,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2664 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:23:46,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2023-12-25 05:23:46,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 558. [2023-12-25 05:23:46,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 558 states, 427 states have (on average 1.6721311475409837) internal successors, (714), 444 states have internal predecessors, (714), 103 states have call successors, (103), 28 states have call predecessors, (103), 27 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2023-12-25 05:23:46,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 919 transitions. [2023-12-25 05:23:46,714 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 919 transitions. Word has length 55 [2023-12-25 05:23:46,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:23:46,714 INFO L495 AbstractCegarLoop]: Abstraction has 558 states and 919 transitions. [2023-12-25 05:23:46,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:23:46,714 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 919 transitions. [2023-12-25 05:23:46,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-25 05:23:46,715 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:23:46,715 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:23:46,723 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 05:23:46,923 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 05:23:46,923 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:23:46,923 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:23:46,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1925872120, now seen corresponding path program 1 times [2023-12-25 05:23:46,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:23:46,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1339448591] [2023-12-25 05:23:46,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:23:46,924 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 05:23:46,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:23:46,925 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 05:23:46,927 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 05:23:47,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:23:47,114 INFO L262 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:23:47,135 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:23:47,155 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:23:47,156 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:23:47,156 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:23:47,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1339448591] [2023-12-25 05:23:47,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1339448591] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:23:47,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:23:47,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:23:47,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785196805] [2023-12-25 05:23:47,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:23:47,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:23:47,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:23:47,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:23:47,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:23:47,157 INFO L87 Difference]: Start difference. First operand 558 states and 919 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:23:47,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:23:47,243 INFO L93 Difference]: Finished difference Result 1104 states and 1823 transitions. [2023-12-25 05:23:47,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:23:47,243 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 56 [2023-12-25 05:23:47,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:23:47,247 INFO L225 Difference]: With dead ends: 1104 [2023-12-25 05:23:47,247 INFO L226 Difference]: Without dead ends: 558 [2023-12-25 05:23:47,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 53 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 05:23:47,249 INFO L413 NwaCegarLoop]: 891 mSDtfsCounter, 6 mSDsluCounter, 1773 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2664 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:23:47,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2664 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:23:47,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2023-12-25 05:23:47,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 558. [2023-12-25 05:23:47,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 558 states, 427 states have (on average 1.6697892271662764) internal successors, (713), 444 states have internal predecessors, (713), 103 states have call successors, (103), 28 states have call predecessors, (103), 27 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2023-12-25 05:23:47,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 918 transitions. [2023-12-25 05:23:47,261 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 918 transitions. Word has length 56 [2023-12-25 05:23:47,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:23:47,261 INFO L495 AbstractCegarLoop]: Abstraction has 558 states and 918 transitions. [2023-12-25 05:23:47,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:23:47,262 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 918 transitions. [2023-12-25 05:23:47,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-25 05:23:47,262 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:23:47,262 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:23:47,271 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 05:23:47,471 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 05:23:47,472 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:23:47,472 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:23:47,473 INFO L85 PathProgramCache]: Analyzing trace with hash -2125000178, now seen corresponding path program 1 times [2023-12-25 05:23:47,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:23:47,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2133054422] [2023-12-25 05:23:47,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:23:47,473 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 05:23:47,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:23:47,474 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 05:23:47,504 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 05:23:47,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:23:47,659 INFO L262 TraceCheckSpWp]: Trace formula consists of 543 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:23:47,661 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:23:47,704 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:23:47,704 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:23:47,705 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:23:47,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2133054422] [2023-12-25 05:23:47,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2133054422] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:23:47,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:23:47,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:23:47,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906273750] [2023-12-25 05:23:47,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:23:47,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:23:47,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:23:47,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:23:47,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:23:47,706 INFO L87 Difference]: Start difference. First operand 558 states and 918 transitions. Second operand has 7 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:23:47,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:23:47,896 INFO L93 Difference]: Finished difference Result 1114 states and 1839 transitions. [2023-12-25 05:23:47,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:23:47,897 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 57 [2023-12-25 05:23:47,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:23:47,900 INFO L225 Difference]: With dead ends: 1114 [2023-12-25 05:23:47,900 INFO L226 Difference]: Without dead ends: 572 [2023-12-25 05:23:47,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:23:47,903 INFO L413 NwaCegarLoop]: 889 mSDtfsCounter, 115 mSDsluCounter, 4351 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 5240 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:23:47,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 5240 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:23:47,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2023-12-25 05:23:47,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 570. [2023-12-25 05:23:47,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 436 states have (on average 1.6674311926605505) internal successors, (727), 455 states have internal predecessors, (727), 104 states have call successors, (104), 28 states have call predecessors, (104), 29 states have return successors, (106), 100 states have call predecessors, (106), 103 states have call successors, (106) [2023-12-25 05:23:47,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 937 transitions. [2023-12-25 05:23:47,929 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 937 transitions. Word has length 57 [2023-12-25 05:23:47,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:23:47,929 INFO L495 AbstractCegarLoop]: Abstraction has 570 states and 937 transitions. [2023-12-25 05:23:47,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:23:47,929 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 937 transitions. [2023-12-25 05:23:47,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-25 05:23:47,930 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:23:47,930 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:23:47,937 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 05:23:48,139 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 05:23:48,140 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:23:48,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:23:48,140 INFO L85 PathProgramCache]: Analyzing trace with hash 986619821, now seen corresponding path program 1 times [2023-12-25 05:23:48,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:23:48,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [779417262] [2023-12-25 05:23:48,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:23:48,141 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 05:23:48,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:23:48,142 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 05:23:48,143 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 05:23:48,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:23:48,313 INFO L262 TraceCheckSpWp]: Trace formula consists of 543 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:23:48,315 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:23:48,336 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:23:48,337 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:23:48,337 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:23:48,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [779417262] [2023-12-25 05:23:48,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [779417262] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:23:48,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:23:48,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:23:48,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883281089] [2023-12-25 05:23:48,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:23:48,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:23:48,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:23:48,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:23:48,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:23:48,338 INFO L87 Difference]: Start difference. First operand 570 states and 937 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:23:48,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:23:48,422 INFO L93 Difference]: Finished difference Result 1120 states and 1849 transitions. [2023-12-25 05:23:48,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:23:48,422 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 57 [2023-12-25 05:23:48,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:23:48,425 INFO L225 Difference]: With dead ends: 1120 [2023-12-25 05:23:48,425 INFO L226 Difference]: Without dead ends: 566 [2023-12-25 05:23:48,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:23:48,428 INFO L413 NwaCegarLoop]: 890 mSDtfsCounter, 6 mSDsluCounter, 1773 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2663 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:23:48,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2663 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:23:48,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2023-12-25 05:23:48,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 566. [2023-12-25 05:23:48,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 434 states have (on average 1.6682027649769586) internal successors, (724), 452 states have internal predecessors, (724), 103 states have call successors, (103), 28 states have call predecessors, (103), 28 states have return successors, (103), 99 states have call predecessors, (103), 102 states have call successors, (103) [2023-12-25 05:23:48,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 930 transitions. [2023-12-25 05:23:48,441 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 930 transitions. Word has length 57 [2023-12-25 05:23:48,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:23:48,441 INFO L495 AbstractCegarLoop]: Abstraction has 566 states and 930 transitions. [2023-12-25 05:23:48,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:23:48,442 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 930 transitions. [2023-12-25 05:23:48,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-25 05:23:48,442 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:23:48,442 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:23:48,450 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-25 05:23:48,648 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 05:23:48,648 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:23:48,649 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:23:48,649 INFO L85 PathProgramCache]: Analyzing trace with hash 238808346, now seen corresponding path program 1 times [2023-12-25 05:23:48,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:23:48,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [918945446] [2023-12-25 05:23:48,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:23:48,649 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 05:23:48,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:23:48,650 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 05:23:48,656 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 05:23:48,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:23:48,840 INFO L262 TraceCheckSpWp]: Trace formula consists of 544 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:23:48,842 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:23:48,863 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:23:48,863 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:23:48,863 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:23:48,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [918945446] [2023-12-25 05:23:48,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [918945446] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:23:48,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:23:48,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:23:48,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28849796] [2023-12-25 05:23:48,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:23:48,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:23:48,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:23:48,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:23:48,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:23:48,865 INFO L87 Difference]: Start difference. First operand 566 states and 930 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:23:49,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:23:49,032 INFO L93 Difference]: Finished difference Result 1143 states and 1891 transitions. [2023-12-25 05:23:49,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:23:49,033 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 58 [2023-12-25 05:23:49,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:23:49,036 INFO L225 Difference]: With dead ends: 1143 [2023-12-25 05:23:49,036 INFO L226 Difference]: Without dead ends: 579 [2023-12-25 05:23:49,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 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 05:23:49,038 INFO L413 NwaCegarLoop]: 847 mSDtfsCounter, 112 mSDsluCounter, 1647 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 2494 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:23:49,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 2494 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:23:49,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2023-12-25 05:23:49,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 571. [2023-12-25 05:23:49,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 439 states have (on average 1.6560364464692483) internal successors, (727), 456 states have internal predecessors, (727), 103 states have call successors, (103), 29 states have call predecessors, (103), 28 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2023-12-25 05:23:49,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 932 transitions. [2023-12-25 05:23:49,051 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 932 transitions. Word has length 58 [2023-12-25 05:23:49,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:23:49,051 INFO L495 AbstractCegarLoop]: Abstraction has 571 states and 932 transitions. [2023-12-25 05:23:49,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:23:49,051 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 932 transitions. [2023-12-25 05:23:49,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-25 05:23:49,051 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:23:49,052 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:23:49,062 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 (9)] Ended with exit code 0 [2023-12-25 05:23:49,256 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 05:23:49,257 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:23:49,257 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:23:49,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1571918257, now seen corresponding path program 1 times [2023-12-25 05:23:49,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:23:49,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2077889104] [2023-12-25 05:23:49,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:23:49,258 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 05:23:49,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:23:49,259 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 05:23:49,260 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 05:23:49,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:23:49,455 INFO L262 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:23:49,457 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:23:49,480 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:23:49,481 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:23:49,481 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:23:49,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2077889104] [2023-12-25 05:23:49,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2077889104] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:23:49,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:23:49,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:23:49,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236671668] [2023-12-25 05:23:49,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:23:49,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:23:49,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:23:49,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:23:49,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:23:49,482 INFO L87 Difference]: Start difference. First operand 571 states and 932 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:23:49,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:23:49,629 INFO L93 Difference]: Finished difference Result 1096 states and 1789 transitions. [2023-12-25 05:23:49,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:23:49,630 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 59 [2023-12-25 05:23:49,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:23:49,633 INFO L225 Difference]: With dead ends: 1096 [2023-12-25 05:23:49,633 INFO L226 Difference]: Without dead ends: 571 [2023-12-25 05:23:49,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 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 05:23:49,635 INFO L413 NwaCegarLoop]: 848 mSDtfsCounter, 77 mSDsluCounter, 1647 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 2495 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:23:49,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 2495 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:23:49,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2023-12-25 05:23:49,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 571. [2023-12-25 05:23:49,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 439 states have (on average 1.6469248291571754) internal successors, (723), 456 states have internal predecessors, (723), 103 states have call successors, (103), 29 states have call predecessors, (103), 28 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2023-12-25 05:23:49,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 928 transitions. [2023-12-25 05:23:49,654 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 928 transitions. Word has length 59 [2023-12-25 05:23:49,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:23:49,654 INFO L495 AbstractCegarLoop]: Abstraction has 571 states and 928 transitions. [2023-12-25 05:23:49,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:23:49,655 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 928 transitions. [2023-12-25 05:23:49,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-25 05:23:49,655 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:23:49,655 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:23:49,663 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-25 05:23:49,863 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 05:23:49,864 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:23:49,864 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:23:49,864 INFO L85 PathProgramCache]: Analyzing trace with hash -369798081, now seen corresponding path program 1 times [2023-12-25 05:23:49,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:23:49,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1740466082] [2023-12-25 05:23:49,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:23:49,865 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 05:23:49,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:23:49,866 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 05:23:49,869 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 05:23:50,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:23:50,043 INFO L262 TraceCheckSpWp]: Trace formula consists of 546 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:23:50,045 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:23:50,064 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:23:50,064 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:23:50,064 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:23:50,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1740466082] [2023-12-25 05:23:50,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1740466082] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:23:50,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:23:50,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:23:50,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464731779] [2023-12-25 05:23:50,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:23:50,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:23:50,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:23:50,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:23:50,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:23:50,065 INFO L87 Difference]: Start difference. First operand 571 states and 928 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, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:23:50,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:23:50,188 INFO L93 Difference]: Finished difference Result 1096 states and 1785 transitions. [2023-12-25 05:23:50,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:23:50,188 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, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 60 [2023-12-25 05:23:50,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:23:50,191 INFO L225 Difference]: With dead ends: 1096 [2023-12-25 05:23:50,191 INFO L226 Difference]: Without dead ends: 571 [2023-12-25 05:23:50,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 57 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 05:23:50,194 INFO L413 NwaCegarLoop]: 848 mSDtfsCounter, 72 mSDsluCounter, 1647 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 2495 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:23:50,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 2495 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:23:50,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2023-12-25 05:23:50,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 571. [2023-12-25 05:23:50,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 439 states have (on average 1.6378132118451025) internal successors, (719), 456 states have internal predecessors, (719), 103 states have call successors, (103), 29 states have call predecessors, (103), 28 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2023-12-25 05:23:50,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 924 transitions. [2023-12-25 05:23:50,204 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 924 transitions. Word has length 60 [2023-12-25 05:23:50,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:23:50,205 INFO L495 AbstractCegarLoop]: Abstraction has 571 states and 924 transitions. [2023-12-25 05:23:50,205 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, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:23:50,205 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 924 transitions. [2023-12-25 05:23:50,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-25 05:23:50,205 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:23:50,206 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:23:50,214 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 05:23:50,411 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 05:23:50,411 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:23:50,411 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:23:50,412 INFO L85 PathProgramCache]: Analyzing trace with hash -626790209, now seen corresponding path program 1 times [2023-12-25 05:23:50,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:23:50,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1809029212] [2023-12-25 05:23:50,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:23:50,412 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 05:23:50,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:23:50,413 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 05:23:50,418 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 05:23:50,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:23:50,588 INFO L262 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:23:50,590 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:23:50,638 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:23:50,638 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:23:50,639 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:23:50,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1809029212] [2023-12-25 05:23:50,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1809029212] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:23:50,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:23:50,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:23:50,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35424809] [2023-12-25 05:23:50,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:23:50,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:23:50,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:23:50,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:23:50,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:23:50,640 INFO L87 Difference]: Start difference. First operand 571 states and 924 transitions. Second operand has 7 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:23:50,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:23:50,783 INFO L93 Difference]: Finished difference Result 1104 states and 1794 transitions. [2023-12-25 05:23:50,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:23:50,784 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 60 [2023-12-25 05:23:50,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:23:50,786 INFO L225 Difference]: With dead ends: 1104 [2023-12-25 05:23:50,786 INFO L226 Difference]: Without dead ends: 558 [2023-12-25 05:23:50,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 54 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 05:23:50,790 INFO L413 NwaCegarLoop]: 877 mSDtfsCounter, 106 mSDsluCounter, 4271 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 5148 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:23:50,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 5148 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:23:50,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2023-12-25 05:23:50,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 550. [2023-12-25 05:23:50,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 418 states have (on average 1.631578947368421) internal successors, (682), 435 states have internal predecessors, (682), 103 states have call successors, (103), 29 states have call predecessors, (103), 28 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2023-12-25 05:23:50,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 887 transitions. [2023-12-25 05:23:50,805 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 887 transitions. Word has length 60 [2023-12-25 05:23:50,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:23:50,805 INFO L495 AbstractCegarLoop]: Abstraction has 550 states and 887 transitions. [2023-12-25 05:23:50,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:23:50,806 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 887 transitions. [2023-12-25 05:23:50,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-25 05:23:50,808 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:23:50,808 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:23:50,821 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 05:23:51,015 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 05:23:51,015 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:23:51,015 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:23:51,016 INFO L85 PathProgramCache]: Analyzing trace with hash -751913034, now seen corresponding path program 1 times [2023-12-25 05:23:51,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:23:51,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1199439139] [2023-12-25 05:23:51,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:23:51,016 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:23:51,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:23:51,017 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 05:23:51,018 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 05:23:51,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:23:51,193 INFO L262 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:23:51,195 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:23:51,212 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:23:51,212 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:23:51,212 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:23:51,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1199439139] [2023-12-25 05:23:51,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1199439139] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:23:51,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:23:51,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:23:51,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921444759] [2023-12-25 05:23:51,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:23:51,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:23:51,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:23:51,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:23:51,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:23:51,214 INFO L87 Difference]: Start difference. First operand 550 states and 887 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, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:23:51,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:23:51,303 INFO L93 Difference]: Finished difference Result 1075 states and 1744 transitions. [2023-12-25 05:23:51,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:23:51,303 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, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 61 [2023-12-25 05:23:51,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:23:51,307 INFO L225 Difference]: With dead ends: 1075 [2023-12-25 05:23:51,307 INFO L226 Difference]: Without dead ends: 550 [2023-12-25 05:23:51,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 58 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 05:23:51,310 INFO L413 NwaCegarLoop]: 848 mSDtfsCounter, 40 mSDsluCounter, 1647 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 2495 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:23:51,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 2495 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:23:51,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2023-12-25 05:23:51,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 550. [2023-12-25 05:23:51,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 418 states have (on average 1.6291866028708133) internal successors, (681), 435 states have internal predecessors, (681), 103 states have call successors, (103), 29 states have call predecessors, (103), 28 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2023-12-25 05:23:51,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 886 transitions. [2023-12-25 05:23:51,322 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 886 transitions. Word has length 61 [2023-12-25 05:23:51,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:23:51,324 INFO L495 AbstractCegarLoop]: Abstraction has 550 states and 886 transitions. [2023-12-25 05:23:51,324 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, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:23:51,324 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 886 transitions. [2023-12-25 05:23:51,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-25 05:23:51,325 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:23:51,325 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:23:51,334 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 05:23:51,530 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 05:23:51,530 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:23:51,530 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:23:51,530 INFO L85 PathProgramCache]: Analyzing trace with hash -31025308, now seen corresponding path program 1 times [2023-12-25 05:23:51,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:23:51,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [38295352] [2023-12-25 05:23:51,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:23:51,531 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 05:23:51,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:23:51,532 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 05:23:51,536 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 (14)] Waiting until timeout for monitored process [2023-12-25 05:23:51,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:23:51,725 INFO L262 TraceCheckSpWp]: Trace formula consists of 548 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:23:51,727 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:23:51,751 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:23:51,752 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:23:51,752 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:23:51,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [38295352] [2023-12-25 05:23:51,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [38295352] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:23:51,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:23:51,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:23:51,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967909870] [2023-12-25 05:23:51,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:23:51,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:23:51,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:23:51,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:23:51,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:23:51,754 INFO L87 Difference]: Start difference. First operand 550 states and 886 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:23:51,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:23:51,857 INFO L93 Difference]: Finished difference Result 1075 states and 1743 transitions. [2023-12-25 05:23:51,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:23:51,858 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 62 [2023-12-25 05:23:51,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:23:51,861 INFO L225 Difference]: With dead ends: 1075 [2023-12-25 05:23:51,861 INFO L226 Difference]: Without dead ends: 550 [2023-12-25 05:23:51,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 59 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 05:23:51,863 INFO L413 NwaCegarLoop]: 848 mSDtfsCounter, 38 mSDsluCounter, 1647 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 2495 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:23:51,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 2495 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:23:51,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2023-12-25 05:23:51,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 550. [2023-12-25 05:23:51,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 418 states have (on average 1.6267942583732058) internal successors, (680), 435 states have internal predecessors, (680), 103 states have call successors, (103), 29 states have call predecessors, (103), 28 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2023-12-25 05:23:51,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 885 transitions. [2023-12-25 05:23:51,875 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 885 transitions. Word has length 62 [2023-12-25 05:23:51,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:23:51,875 INFO L495 AbstractCegarLoop]: Abstraction has 550 states and 885 transitions. [2023-12-25 05:23:51,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:23:51,875 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 885 transitions. [2023-12-25 05:23:51,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-25 05:23:51,876 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:23:51,876 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:23:51,884 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 05:23:52,081 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 05:23:52,082 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:23:52,082 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:23:52,082 INFO L85 PathProgramCache]: Analyzing trace with hash 523207099, now seen corresponding path program 1 times [2023-12-25 05:23:52,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:23:52,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [972681843] [2023-12-25 05:23:52,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:23:52,083 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 05:23:52,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:23:52,084 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 05:23:52,085 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 05:23:52,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:23:52,264 INFO L262 TraceCheckSpWp]: Trace formula consists of 549 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:23:52,266 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:23:52,318 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:23:52,318 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:23:52,318 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:23:52,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [972681843] [2023-12-25 05:23:52,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [972681843] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:23:52,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:23:52,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:23:52,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090109524] [2023-12-25 05:23:52,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:23:52,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:23:52,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:23:52,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:23:52,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:23:52,319 INFO L87 Difference]: Start difference. First operand 550 states and 885 transitions. Second operand has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:23:52,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:23:52,524 INFO L93 Difference]: Finished difference Result 1073 states and 1738 transitions. [2023-12-25 05:23:52,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:23:52,525 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 63 [2023-12-25 05:23:52,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:23:52,527 INFO L225 Difference]: With dead ends: 1073 [2023-12-25 05:23:52,527 INFO L226 Difference]: Without dead ends: 554 [2023-12-25 05:23:52,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:23:52,529 INFO L413 NwaCegarLoop]: 828 mSDtfsCounter, 40 mSDsluCounter, 4940 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 5768 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:23:52,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 5768 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:23:52,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2023-12-25 05:23:52,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 552. [2023-12-25 05:23:52,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 420 states have (on average 1.6214285714285714) internal successors, (681), 437 states have internal predecessors, (681), 103 states have call successors, (103), 29 states have call predecessors, (103), 28 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2023-12-25 05:23:52,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 886 transitions. [2023-12-25 05:23:52,543 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 886 transitions. Word has length 63 [2023-12-25 05:23:52,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:23:52,544 INFO L495 AbstractCegarLoop]: Abstraction has 552 states and 886 transitions. [2023-12-25 05:23:52,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:23:52,544 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 886 transitions. [2023-12-25 05:23:52,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-25 05:23:52,544 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:23:52,544 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:23:52,552 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 05:23:52,749 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 05:23:52,750 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:23:52,750 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:23:52,750 INFO L85 PathProgramCache]: Analyzing trace with hash 89867097, now seen corresponding path program 1 times [2023-12-25 05:23:52,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:23:52,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1829512896] [2023-12-25 05:23:52,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:23:52,751 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 05:23:52,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:23:52,752 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 05:23:52,752 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 05:23:52,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:23:52,926 INFO L262 TraceCheckSpWp]: Trace formula consists of 550 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 05:23:52,928 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:23:53,075 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:23:53,076 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:23:53,076 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:23:53,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1829512896] [2023-12-25 05:23:53,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1829512896] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:23:53,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:23:53,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 05:23:53,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306427664] [2023-12-25 05:23:53,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:23:53,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:23:53,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:23:53,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:23:53,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:23:53,077 INFO L87 Difference]: Start difference. First operand 552 states and 886 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:23:53,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:23:53,295 INFO L93 Difference]: Finished difference Result 1571 states and 2564 transitions. [2023-12-25 05:23:53,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:23:53,296 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 64 [2023-12-25 05:23:53,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:23:53,301 INFO L225 Difference]: With dead ends: 1571 [2023-12-25 05:23:53,301 INFO L226 Difference]: Without dead ends: 1056 [2023-12-25 05:23:53,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 62 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 05:23:53,303 INFO L413 NwaCegarLoop]: 928 mSDtfsCounter, 795 mSDsluCounter, 809 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 795 SdHoareTripleChecker+Valid, 1737 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:23:53,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [795 Valid, 1737 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:23:53,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1056 states. [2023-12-25 05:23:53,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1056 to 993. [2023-12-25 05:23:53,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 993 states, 761 states have (on average 1.636005256241787) internal successors, (1245), 787 states have internal predecessors, (1245), 182 states have call successors, (182), 51 states have call predecessors, (182), 49 states have return successors, (187), 169 states have call predecessors, (187), 180 states have call successors, (187) [2023-12-25 05:23:53,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 993 states to 993 states and 1614 transitions. [2023-12-25 05:23:53,333 INFO L78 Accepts]: Start accepts. Automaton has 993 states and 1614 transitions. Word has length 64 [2023-12-25 05:23:53,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:23:53,334 INFO L495 AbstractCegarLoop]: Abstraction has 993 states and 1614 transitions. [2023-12-25 05:23:53,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:23:53,334 INFO L276 IsEmpty]: Start isEmpty. Operand 993 states and 1614 transitions. [2023-12-25 05:23:53,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-25 05:23:53,337 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:23:53,337 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-25 05:23:53,344 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 05:23:53,542 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 05:23:53,542 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:23:53,542 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:23:53,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1611897861, now seen corresponding path program 1 times [2023-12-25 05:23:53,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:23:53,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1014886272] [2023-12-25 05:23:53,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:23:53,543 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 05:23:53,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:23:53,544 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 05:23:53,545 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 05:23:53,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:23:53,760 INFO L262 TraceCheckSpWp]: Trace formula consists of 740 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:23:53,763 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:23:53,829 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-25 05:23:53,829 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:23:53,829 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:23:53,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1014886272] [2023-12-25 05:23:53,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1014886272] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:23:53,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:23:53,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:23:53,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197579518] [2023-12-25 05:23:53,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:23:53,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:23:53,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:23:53,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:23:53,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:23:53,831 INFO L87 Difference]: Start difference. First operand 993 states and 1614 transitions. Second operand has 6 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-25 05:23:54,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:23:54,346 INFO L93 Difference]: Finished difference Result 2288 states and 3693 transitions. [2023-12-25 05:23:54,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:23:54,347 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 114 [2023-12-25 05:23:54,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:23:54,352 INFO L225 Difference]: With dead ends: 2288 [2023-12-25 05:23:54,352 INFO L226 Difference]: Without dead ends: 1332 [2023-12-25 05:23:54,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:23:54,356 INFO L413 NwaCegarLoop]: 943 mSDtfsCounter, 614 mSDsluCounter, 3100 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 619 SdHoareTripleChecker+Valid, 4043 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 05:23:54,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [619 Valid, 4043 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 05:23:54,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1332 states. [2023-12-25 05:23:54,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1332 to 1326. [2023-12-25 05:23:54,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1326 states, 999 states have (on average 1.5755755755755756) internal successors, (1574), 1022 states have internal predecessors, (1574), 249 states have call successors, (249), 77 states have call predecessors, (249), 77 states have return successors, (279), 240 states have call predecessors, (279), 245 states have call successors, (279) [2023-12-25 05:23:54,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1326 states to 1326 states and 2102 transitions. [2023-12-25 05:23:54,396 INFO L78 Accepts]: Start accepts. Automaton has 1326 states and 2102 transitions. Word has length 114 [2023-12-25 05:23:54,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:23:54,397 INFO L495 AbstractCegarLoop]: Abstraction has 1326 states and 2102 transitions. [2023-12-25 05:23:54,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-25 05:23:54,397 INFO L276 IsEmpty]: Start isEmpty. Operand 1326 states and 2102 transitions. [2023-12-25 05:23:54,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-25 05:23:54,400 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:23:54,400 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-25 05:23:54,409 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 05:23:54,607 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 05:23:54,607 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:23:54,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:23:54,608 INFO L85 PathProgramCache]: Analyzing trace with hash -952465696, now seen corresponding path program 1 times [2023-12-25 05:23:54,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:23:54,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2100366010] [2023-12-25 05:23:54,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:23:54,608 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 05:23:54,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:23:54,609 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 05:23:54,610 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 (18)] Waiting until timeout for monitored process [2023-12-25 05:23:54,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:23:54,836 INFO L262 TraceCheckSpWp]: Trace formula consists of 741 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:23:54,838 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:23:54,911 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-25 05:23:54,911 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:23:54,911 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:23:54,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2100366010] [2023-12-25 05:23:54,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2100366010] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:23:54,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:23:54,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:23:54,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81095291] [2023-12-25 05:23:54,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:23:54,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:23:54,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:23:54,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:23:54,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:23:54,914 INFO L87 Difference]: Start difference. First operand 1326 states and 2102 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:23:55,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:23:55,589 INFO L93 Difference]: Finished difference Result 2631 states and 4301 transitions. [2023-12-25 05:23:55,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:23:55,589 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 115 [2023-12-25 05:23:55,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:23:55,595 INFO L225 Difference]: With dead ends: 2631 [2023-12-25 05:23:55,595 INFO L226 Difference]: Without dead ends: 1342 [2023-12-25 05:23:55,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:23:55,601 INFO L413 NwaCegarLoop]: 821 mSDtfsCounter, 804 mSDsluCounter, 1263 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 822 SdHoareTripleChecker+Valid, 2084 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:23:55,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [822 Valid, 2084 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 500 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 05:23:55,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1342 states. [2023-12-25 05:23:55,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1342 to 1342. [2023-12-25 05:23:55,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1342 states, 1011 states have (on average 1.5687438180019782) internal successors, (1586), 1034 states have internal predecessors, (1586), 249 states have call successors, (249), 81 states have call predecessors, (249), 81 states have return successors, (283), 240 states have call predecessors, (283), 245 states have call successors, (283) [2023-12-25 05:23:55,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1342 states to 1342 states and 2118 transitions. [2023-12-25 05:23:55,669 INFO L78 Accepts]: Start accepts. Automaton has 1342 states and 2118 transitions. Word has length 115 [2023-12-25 05:23:55,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:23:55,669 INFO L495 AbstractCegarLoop]: Abstraction has 1342 states and 2118 transitions. [2023-12-25 05:23:55,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:23:55,670 INFO L276 IsEmpty]: Start isEmpty. Operand 1342 states and 2118 transitions. [2023-12-25 05:23:55,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-25 05:23:55,672 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:23:55,672 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-25 05:23:55,687 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 05:23:55,880 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 05:23:55,880 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:23:55,881 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:23:55,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1953266881, now seen corresponding path program 1 times [2023-12-25 05:23:55,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:23:55,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [296562514] [2023-12-25 05:23:55,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:23:55,881 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 05:23:55,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:23:55,882 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 05:23:55,883 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 05:23:56,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:23:56,143 INFO L262 TraceCheckSpWp]: Trace formula consists of 744 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:23:56,146 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:23:56,217 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-12-25 05:23:56,217 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:23:56,217 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:23:56,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [296562514] [2023-12-25 05:23:56,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [296562514] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:23:56,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:23:56,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:23:56,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001339940] [2023-12-25 05:23:56,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:23:56,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:23:56,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:23:56,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:23:56,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:23:56,220 INFO L87 Difference]: Start difference. First operand 1342 states and 2118 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:23:56,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:23:56,860 INFO L93 Difference]: Finished difference Result 2667 states and 4333 transitions. [2023-12-25 05:23:56,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:23:56,861 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 118 [2023-12-25 05:23:56,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:23:56,867 INFO L225 Difference]: With dead ends: 2667 [2023-12-25 05:23:56,867 INFO L226 Difference]: Without dead ends: 1362 [2023-12-25 05:23:56,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:23:56,873 INFO L413 NwaCegarLoop]: 822 mSDtfsCounter, 812 mSDsluCounter, 1263 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 829 SdHoareTripleChecker+Valid, 2085 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:23:56,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [829 Valid, 2085 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 05:23:56,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1362 states. [2023-12-25 05:23:56,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1362 to 1362. [2023-12-25 05:23:56,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1362 states, 1027 states have (on average 1.5598831548198637) internal successors, (1602), 1050 states have internal predecessors, (1602), 249 states have call successors, (249), 85 states have call predecessors, (249), 85 states have return successors, (287), 240 states have call predecessors, (287), 245 states have call successors, (287) [2023-12-25 05:23:56,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1362 states to 1362 states and 2138 transitions. [2023-12-25 05:23:56,915 INFO L78 Accepts]: Start accepts. Automaton has 1362 states and 2138 transitions. Word has length 118 [2023-12-25 05:23:56,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:23:56,915 INFO L495 AbstractCegarLoop]: Abstraction has 1362 states and 2138 transitions. [2023-12-25 05:23:56,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:23:56,916 INFO L276 IsEmpty]: Start isEmpty. Operand 1362 states and 2138 transitions. [2023-12-25 05:23:56,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-25 05:23:56,921 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:23:56,921 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-25 05:23:56,929 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 05:23:57,127 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 05:23:57,127 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:23:57,127 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:23:57,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1496978244, now seen corresponding path program 1 times [2023-12-25 05:23:57,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:23:57,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1928801102] [2023-12-25 05:23:57,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:23:57,128 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 05:23:57,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:23:57,129 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 05:23:57,132 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 05:23:57,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:23:57,355 INFO L262 TraceCheckSpWp]: Trace formula consists of 747 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:23:57,358 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:23:57,425 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-25 05:23:57,426 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:23:57,426 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:23:57,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1928801102] [2023-12-25 05:23:57,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1928801102] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:23:57,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:23:57,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:23:57,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156498685] [2023-12-25 05:23:57,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:23:57,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:23:57,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:23:57,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:23:57,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:23:57,427 INFO L87 Difference]: Start difference. First operand 1362 states and 2138 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:23:58,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:23:58,069 INFO L93 Difference]: Finished difference Result 2711 states and 4373 transitions. [2023-12-25 05:23:58,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:23:58,070 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 121 [2023-12-25 05:23:58,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:23:58,079 INFO L225 Difference]: With dead ends: 2711 [2023-12-25 05:23:58,079 INFO L226 Difference]: Without dead ends: 1386 [2023-12-25 05:23:58,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:23:58,089 INFO L413 NwaCegarLoop]: 822 mSDtfsCounter, 800 mSDsluCounter, 1263 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 817 SdHoareTripleChecker+Valid, 2085 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:23:58,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [817 Valid, 2085 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 505 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 05:23:58,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1386 states. [2023-12-25 05:23:58,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1386 to 1386. [2023-12-25 05:23:58,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1386 states, 1047 states have (on average 1.5491881566380135) internal successors, (1622), 1070 states have internal predecessors, (1622), 249 states have call successors, (249), 89 states have call predecessors, (249), 89 states have return successors, (291), 240 states have call predecessors, (291), 245 states have call successors, (291) [2023-12-25 05:23:58,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1386 states to 1386 states and 2162 transitions. [2023-12-25 05:23:58,130 INFO L78 Accepts]: Start accepts. Automaton has 1386 states and 2162 transitions. Word has length 121 [2023-12-25 05:23:58,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:23:58,130 INFO L495 AbstractCegarLoop]: Abstraction has 1386 states and 2162 transitions. [2023-12-25 05:23:58,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:23:58,131 INFO L276 IsEmpty]: Start isEmpty. Operand 1386 states and 2162 transitions. [2023-12-25 05:23:58,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-25 05:23:58,133 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:23:58,133 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-25 05:23:58,143 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 05:23:58,334 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 05:23:58,334 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:23:58,334 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:23:58,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1594791381, now seen corresponding path program 1 times [2023-12-25 05:23:58,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:23:58,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1214045119] [2023-12-25 05:23:58,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:23:58,335 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 05:23:58,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:23:58,336 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 05:23:58,337 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 05:23:58,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:23:58,552 INFO L262 TraceCheckSpWp]: Trace formula consists of 750 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:23:58,555 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:23:58,638 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-25 05:23:58,638 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:23:58,638 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:23:58,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1214045119] [2023-12-25 05:23:58,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1214045119] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:23:58,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:23:58,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:23:58,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893659431] [2023-12-25 05:23:58,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:23:58,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:23:58,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:23:58,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:23:58,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:23:58,640 INFO L87 Difference]: Start difference. First operand 1386 states and 2162 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:23:59,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:23:59,278 INFO L93 Difference]: Finished difference Result 2763 states and 4421 transitions. [2023-12-25 05:23:59,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:23:59,279 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 124 [2023-12-25 05:23:59,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:23:59,285 INFO L225 Difference]: With dead ends: 2763 [2023-12-25 05:23:59,285 INFO L226 Difference]: Without dead ends: 1414 [2023-12-25 05:23:59,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:23:59,292 INFO L413 NwaCegarLoop]: 822 mSDtfsCounter, 810 mSDsluCounter, 1263 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 827 SdHoareTripleChecker+Valid, 2085 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:23:59,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [827 Valid, 2085 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 506 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 05:23:59,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1414 states. [2023-12-25 05:23:59,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1414 to 1414. [2023-12-25 05:23:59,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1414 states, 1071 states have (on average 1.5368814192343605) internal successors, (1646), 1094 states have internal predecessors, (1646), 249 states have call successors, (249), 93 states have call predecessors, (249), 93 states have return successors, (295), 240 states have call predecessors, (295), 245 states have call successors, (295) [2023-12-25 05:23:59,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1414 states to 1414 states and 2190 transitions. [2023-12-25 05:23:59,366 INFO L78 Accepts]: Start accepts. Automaton has 1414 states and 2190 transitions. Word has length 124 [2023-12-25 05:23:59,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:23:59,366 INFO L495 AbstractCegarLoop]: Abstraction has 1414 states and 2190 transitions. [2023-12-25 05:23:59,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:23:59,367 INFO L276 IsEmpty]: Start isEmpty. Operand 1414 states and 2190 transitions. [2023-12-25 05:23:59,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-25 05:23:59,370 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:23:59,370 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-25 05:23:59,379 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 05:23:59,576 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 05:23:59,576 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:23:59,577 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:23:59,577 INFO L85 PathProgramCache]: Analyzing trace with hash -795435880, now seen corresponding path program 1 times [2023-12-25 05:23:59,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:23:59,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1246077661] [2023-12-25 05:23:59,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:23:59,577 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 05:23:59,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:23:59,578 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 05:23:59,579 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 05:23:59,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:23:59,805 INFO L262 TraceCheckSpWp]: Trace formula consists of 753 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-25 05:23:59,808 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:23:59,975 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 38 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:23:59,976 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:24:00,317 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-25 05:24:00,318 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:24:00,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1246077661] [2023-12-25 05:24:00,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1246077661] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:24:00,318 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:24:00,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 18 [2023-12-25 05:24:00,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51973467] [2023-12-25 05:24:00,318 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:24:00,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-25 05:24:00,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:24:00,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-25 05:24:00,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2023-12-25 05:24:00,320 INFO L87 Difference]: Start difference. First operand 1414 states and 2190 transitions. Second operand has 18 states, 16 states have (on average 8.5) internal successors, (136), 14 states have internal predecessors, (136), 8 states have call successors, (32), 6 states have call predecessors, (32), 12 states have return successors, (33), 12 states have call predecessors, (33), 8 states have call successors, (33) [2023-12-25 05:24:07,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:24:07,754 INFO L93 Difference]: Finished difference Result 4479 states and 7125 transitions. [2023-12-25 05:24:07,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-25 05:24:07,755 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 8.5) internal successors, (136), 14 states have internal predecessors, (136), 8 states have call successors, (32), 6 states have call predecessors, (32), 12 states have return successors, (33), 12 states have call predecessors, (33), 8 states have call successors, (33) Word has length 127 [2023-12-25 05:24:07,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:24:07,769 INFO L225 Difference]: With dead ends: 4479 [2023-12-25 05:24:07,769 INFO L226 Difference]: Without dead ends: 3102 [2023-12-25 05:24:07,775 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=192, Invalid=738, Unknown=0, NotChecked=0, Total=930 [2023-12-25 05:24:07,776 INFO L413 NwaCegarLoop]: 781 mSDtfsCounter, 5231 mSDsluCounter, 4591 mSDsCounter, 0 mSdLazyCounter, 11601 mSolverCounterSat, 1656 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5316 SdHoareTripleChecker+Valid, 5372 SdHoareTripleChecker+Invalid, 13257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1656 IncrementalHoareTripleChecker+Valid, 11601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:24:07,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5316 Valid, 5372 Invalid, 13257 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1656 Valid, 11601 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2023-12-25 05:24:07,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3102 states. [2023-12-25 05:24:07,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3102 to 2940. [2023-12-25 05:24:07,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2940 states, 2194 states have (on average 1.529626253418414) internal successors, (3356), 2251 states have internal predecessors, (3356), 534 states have call successors, (534), 183 states have call predecessors, (534), 211 states have return successors, (716), 538 states have call predecessors, (716), 526 states have call successors, (716) [2023-12-25 05:24:07,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2940 states to 2940 states and 4606 transitions. [2023-12-25 05:24:07,910 INFO L78 Accepts]: Start accepts. Automaton has 2940 states and 4606 transitions. Word has length 127 [2023-12-25 05:24:07,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:24:07,910 INFO L495 AbstractCegarLoop]: Abstraction has 2940 states and 4606 transitions. [2023-12-25 05:24:07,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 8.5) internal successors, (136), 14 states have internal predecessors, (136), 8 states have call successors, (32), 6 states have call predecessors, (32), 12 states have return successors, (33), 12 states have call predecessors, (33), 8 states have call successors, (33) [2023-12-25 05:24:07,911 INFO L276 IsEmpty]: Start isEmpty. Operand 2940 states and 4606 transitions. [2023-12-25 05:24:07,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-25 05:24:07,915 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:24:07,916 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:24:07,924 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 05:24:08,122 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 05:24:08,122 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:24:08,122 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:24:08,122 INFO L85 PathProgramCache]: Analyzing trace with hash -221543349, now seen corresponding path program 1 times [2023-12-25 05:24:08,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:24:08,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2123388943] [2023-12-25 05:24:08,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:24:08,123 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 05:24:08,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:24:08,124 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 05:24:08,124 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 05:24:08,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:24:08,339 INFO L262 TraceCheckSpWp]: Trace formula consists of 756 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:24:08,342 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:24:08,391 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-12-25 05:24:08,391 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:24:08,391 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:24:08,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2123388943] [2023-12-25 05:24:08,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2123388943] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:24:08,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:24:08,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:24:08,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122688152] [2023-12-25 05:24:08,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:24:08,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:24:08,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:24:08,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:24:08,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:24:08,393 INFO L87 Difference]: Start difference. First operand 2940 states and 4606 transitions. Second operand has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-25 05:24:08,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:24:08,663 INFO L93 Difference]: Finished difference Result 5724 states and 8991 transitions. [2023-12-25 05:24:08,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:24:08,686 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 130 [2023-12-25 05:24:08,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:24:08,697 INFO L225 Difference]: With dead ends: 5724 [2023-12-25 05:24:08,697 INFO L226 Difference]: Without dead ends: 2812 [2023-12-25 05:24:08,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:24:08,702 INFO L413 NwaCegarLoop]: 828 mSDtfsCounter, 52 mSDsluCounter, 4937 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 5765 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:24:08,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 5765 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:24:08,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2812 states. [2023-12-25 05:24:08,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2812 to 2804. [2023-12-25 05:24:08,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2804 states, 2092 states have (on average 1.5363288718929253) internal successors, (3214), 2148 states have internal predecessors, (3214), 514 states have call successors, (514), 171 states have call predecessors, (514), 197 states have return successors, (668), 517 states have call predecessors, (668), 506 states have call successors, (668) [2023-12-25 05:24:08,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2804 states to 2804 states and 4396 transitions. [2023-12-25 05:24:08,797 INFO L78 Accepts]: Start accepts. Automaton has 2804 states and 4396 transitions. Word has length 130 [2023-12-25 05:24:08,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:24:08,797 INFO L495 AbstractCegarLoop]: Abstraction has 2804 states and 4396 transitions. [2023-12-25 05:24:08,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-25 05:24:08,797 INFO L276 IsEmpty]: Start isEmpty. Operand 2804 states and 4396 transitions. [2023-12-25 05:24:08,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-25 05:24:08,800 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:24:08,800 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:24:08,805 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 (23)] Ended with exit code 0 [2023-12-25 05:24:09,005 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 05:24:09,005 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:24:09,006 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:24:09,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1828495396, now seen corresponding path program 1 times [2023-12-25 05:24:09,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:24:09,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [538014987] [2023-12-25 05:24:09,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:24:09,006 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:24:09,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:24:09,007 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 05:24:09,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-12-25 05:24:09,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:24:09,256 INFO L262 TraceCheckSpWp]: Trace formula consists of 768 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-25 05:24:09,259 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:24:09,410 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 48 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:24:09,410 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:24:09,690 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-12-25 05:24:09,691 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:24:09,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [538014987] [2023-12-25 05:24:09,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [538014987] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:24:09,691 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:24:09,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2023-12-25 05:24:09,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420363759] [2023-12-25 05:24:09,691 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:24:09,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-25 05:24:09,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:24:09,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-25 05:24:09,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2023-12-25 05:24:09,692 INFO L87 Difference]: Start difference. First operand 2804 states and 4396 transitions. Second operand has 14 states, 14 states have (on average 10.0) internal successors, (140), 12 states have internal predecessors, (140), 8 states have call successors, (33), 6 states have call predecessors, (33), 10 states have return successors, (33), 10 states have call predecessors, (33), 8 states have call successors, (33) [2023-12-25 05:24:15,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:24:15,337 INFO L93 Difference]: Finished difference Result 7097 states and 11342 transitions. [2023-12-25 05:24:15,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-25 05:24:15,338 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 10.0) internal successors, (140), 12 states have internal predecessors, (140), 8 states have call successors, (33), 6 states have call predecessors, (33), 10 states have return successors, (33), 10 states have call predecessors, (33), 8 states have call successors, (33) Word has length 136 [2023-12-25 05:24:15,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:24:15,357 INFO L225 Difference]: With dead ends: 7097 [2023-12-25 05:24:15,357 INFO L226 Difference]: Without dead ends: 4327 [2023-12-25 05:24:15,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=354, Unknown=0, NotChecked=0, Total=462 [2023-12-25 05:24:15,367 INFO L413 NwaCegarLoop]: 744 mSDtfsCounter, 5575 mSDsluCounter, 3231 mSDsCounter, 0 mSdLazyCounter, 8323 mSolverCounterSat, 1721 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5652 SdHoareTripleChecker+Valid, 3975 SdHoareTripleChecker+Invalid, 10044 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1721 IncrementalHoareTripleChecker+Valid, 8323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:24:15,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5652 Valid, 3975 Invalid, 10044 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1721 Valid, 8323 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2023-12-25 05:24:15,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4327 states. [2023-12-25 05:24:15,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4327 to 4193. [2023-12-25 05:24:15,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4193 states, 3116 states have (on average 1.5356225930680358) internal successors, (4785), 3197 states have internal predecessors, (4785), 779 states have call successors, (779), 249 states have call predecessors, (779), 297 states have return successors, (1027), 798 states have call predecessors, (1027), 767 states have call successors, (1027) [2023-12-25 05:24:15,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4193 states to 4193 states and 6591 transitions. [2023-12-25 05:24:15,614 INFO L78 Accepts]: Start accepts. Automaton has 4193 states and 6591 transitions. Word has length 136 [2023-12-25 05:24:15,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:24:15,614 INFO L495 AbstractCegarLoop]: Abstraction has 4193 states and 6591 transitions. [2023-12-25 05:24:15,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 10.0) internal successors, (140), 12 states have internal predecessors, (140), 8 states have call successors, (33), 6 states have call predecessors, (33), 10 states have return successors, (33), 10 states have call predecessors, (33), 8 states have call successors, (33) [2023-12-25 05:24:15,615 INFO L276 IsEmpty]: Start isEmpty. Operand 4193 states and 6591 transitions. [2023-12-25 05:24:15,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-25 05:24:15,618 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:24:15,618 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-25 05:24:15,630 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 (24)] Forceful destruction successful, exit code 0 [2023-12-25 05:24:15,825 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 05:24:15,826 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:24:15,826 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:24:15,826 INFO L85 PathProgramCache]: Analyzing trace with hash -614204706, now seen corresponding path program 1 times [2023-12-25 05:24:15,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:24:15,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [967154163] [2023-12-25 05:24:15,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:24:15,827 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 05:24:15,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:24:15,829 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 05:24:15,830 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 05:24:16,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:24:16,078 INFO L262 TraceCheckSpWp]: Trace formula consists of 772 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:24:16,081 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:24:16,414 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:24:16,414 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:24:16,414 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:24:16,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [967154163] [2023-12-25 05:24:16,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [967154163] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:24:16,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:24:16,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:24:16,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156112460] [2023-12-25 05:24:16,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:24:16,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:24:16,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:24:16,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:24:16,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:24:16,416 INFO L87 Difference]: Start difference. First operand 4193 states and 6591 transitions. Second operand has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 6 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (19), 6 states have call predecessors, (19), 6 states have call successors, (19) [2023-12-25 05:24:20,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:24:20,540 INFO L93 Difference]: Finished difference Result 11413 states and 18402 transitions. [2023-12-25 05:24:20,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-25 05:24:20,541 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 6 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (19), 6 states have call predecessors, (19), 6 states have call successors, (19) Word has length 138 [2023-12-25 05:24:20,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:24:20,570 INFO L225 Difference]: With dead ends: 11413 [2023-12-25 05:24:20,570 INFO L226 Difference]: Without dead ends: 7254 [2023-12-25 05:24:20,583 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-12-25 05:24:20,583 INFO L413 NwaCegarLoop]: 509 mSDtfsCounter, 2729 mSDsluCounter, 1193 mSDsCounter, 0 mSdLazyCounter, 5014 mSolverCounterSat, 545 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2929 SdHoareTripleChecker+Valid, 1702 SdHoareTripleChecker+Invalid, 5559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 545 IncrementalHoareTripleChecker+Valid, 5014 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:24:20,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2929 Valid, 1702 Invalid, 5559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [545 Valid, 5014 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-12-25 05:24:20,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7254 states. [2023-12-25 05:24:20,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7254 to 6302. [2023-12-25 05:24:20,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6302 states, 4708 states have (on average 1.538232795242141) internal successors, (7242), 4816 states have internal predecessors, (7242), 1142 states have call successors, (1142), 366 states have call predecessors, (1142), 451 states have return successors, (1607), 1168 states have call predecessors, (1607), 1124 states have call successors, (1607) [2023-12-25 05:24:21,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6302 states to 6302 states and 9991 transitions. [2023-12-25 05:24:21,003 INFO L78 Accepts]: Start accepts. Automaton has 6302 states and 9991 transitions. Word has length 138 [2023-12-25 05:24:21,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:24:21,003 INFO L495 AbstractCegarLoop]: Abstraction has 6302 states and 9991 transitions. [2023-12-25 05:24:21,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 6 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (19), 6 states have call predecessors, (19), 6 states have call successors, (19) [2023-12-25 05:24:21,004 INFO L276 IsEmpty]: Start isEmpty. Operand 6302 states and 9991 transitions. [2023-12-25 05:24:21,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-25 05:24:21,006 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:24:21,006 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:24:21,018 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2023-12-25 05:24:21,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:24:21,215 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:24:21,215 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:24:21,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1155043421, now seen corresponding path program 1 times [2023-12-25 05:24:21,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:24:21,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [686719638] [2023-12-25 05:24:21,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:24:21,216 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 05:24:21,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:24:21,217 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:24:21,252 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-12-25 05:24:21,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:24:21,476 INFO L262 TraceCheckSpWp]: Trace formula consists of 769 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:24:21,478 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:24:21,579 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 37 proven. 4 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-25 05:24:21,579 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:24:21,775 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-25 05:24:21,775 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:24:21,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [686719638] [2023-12-25 05:24:21,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [686719638] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:24:21,776 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:24:21,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2023-12-25 05:24:21,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314844903] [2023-12-25 05:24:21,776 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:24:21,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-25 05:24:21,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:24:21,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-25 05:24:21,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:24:21,777 INFO L87 Difference]: Start difference. First operand 6302 states and 9991 transitions. Second operand has 11 states, 11 states have (on average 11.181818181818182) internal successors, (123), 11 states have internal predecessors, (123), 6 states have call successors, (28), 5 states have call predecessors, (28), 7 states have return successors, (27), 7 states have call predecessors, (27), 6 states have call successors, (27) [2023-12-25 05:24:27,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:24:27,096 INFO L93 Difference]: Finished difference Result 24979 states and 41006 transitions. [2023-12-25 05:24:27,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-25 05:24:27,097 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.181818181818182) internal successors, (123), 11 states have internal predecessors, (123), 6 states have call successors, (28), 5 states have call predecessors, (28), 7 states have return successors, (27), 7 states have call predecessors, (27), 6 states have call successors, (27) Word has length 137 [2023-12-25 05:24:27,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:24:27,169 INFO L225 Difference]: With dead ends: 24979 [2023-12-25 05:24:27,169 INFO L226 Difference]: Without dead ends: 18693 [2023-12-25 05:24:27,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=147, Invalid=359, Unknown=0, NotChecked=0, Total=506 [2023-12-25 05:24:27,201 INFO L413 NwaCegarLoop]: 466 mSDtfsCounter, 3674 mSDsluCounter, 1585 mSDsCounter, 0 mSdLazyCounter, 6027 mSolverCounterSat, 1121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3780 SdHoareTripleChecker+Valid, 2051 SdHoareTripleChecker+Invalid, 7148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1121 IncrementalHoareTripleChecker+Valid, 6027 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:24:27,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3780 Valid, 2051 Invalid, 7148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1121 Valid, 6027 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-12-25 05:24:27,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18693 states. [2023-12-25 05:24:28,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18693 to 16854. [2023-12-25 05:24:28,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16854 states, 12542 states have (on average 1.5191357040344442) internal successors, (19053), 12841 states have internal predecessors, (19053), 3070 states have call successors, (3070), 1044 states have call predecessors, (3070), 1241 states have return successors, (4625), 3109 states have call predecessors, (4625), 3028 states have call successors, (4625) [2023-12-25 05:24:28,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16854 states to 16854 states and 26748 transitions. [2023-12-25 05:24:28,305 INFO L78 Accepts]: Start accepts. Automaton has 16854 states and 26748 transitions. Word has length 137 [2023-12-25 05:24:28,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:24:28,305 INFO L495 AbstractCegarLoop]: Abstraction has 16854 states and 26748 transitions. [2023-12-25 05:24:28,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.181818181818182) internal successors, (123), 11 states have internal predecessors, (123), 6 states have call successors, (28), 5 states have call predecessors, (28), 7 states have return successors, (27), 7 states have call predecessors, (27), 6 states have call successors, (27) [2023-12-25 05:24:28,305 INFO L276 IsEmpty]: Start isEmpty. Operand 16854 states and 26748 transitions. [2023-12-25 05:24:28,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-25 05:24:28,308 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:24:28,308 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:24:28,319 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2023-12-25 05:24:28,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:24:28,517 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:24:28,517 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:24:28,517 INFO L85 PathProgramCache]: Analyzing trace with hash 2116188361, now seen corresponding path program 1 times [2023-12-25 05:24:28,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:24:28,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1041412673] [2023-12-25 05:24:28,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:24:28,518 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 05:24:28,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:24:28,519 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:24:28,528 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2023-12-25 05:24:28,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:24:28,785 INFO L262 TraceCheckSpWp]: Trace formula consists of 779 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-25 05:24:28,788 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:24:28,940 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-25 05:24:28,940 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:24:28,940 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:24:28,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1041412673] [2023-12-25 05:24:28,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1041412673] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:24:28,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:24:28,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 05:24:28,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892889612] [2023-12-25 05:24:28,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:24:28,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 05:24:28,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:24:28,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 05:24:28,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-12-25 05:24:28,942 INFO L87 Difference]: Start difference. First operand 16854 states and 26748 transitions. Second operand has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 8 states have internal predecessors, (102), 6 states have call successors, (20), 5 states have call predecessors, (20), 6 states have return successors, (19), 7 states have call predecessors, (19), 6 states have call successors, (19) [2023-12-25 05:24:36,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:24:36,296 INFO L93 Difference]: Finished difference Result 49334 states and 82340 transitions. [2023-12-25 05:24:36,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-25 05:24:36,297 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 8 states have internal predecessors, (102), 6 states have call successors, (20), 5 states have call predecessors, (20), 6 states have return successors, (19), 7 states have call predecessors, (19), 6 states have call successors, (19) Word has length 143 [2023-12-25 05:24:36,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:24:36,461 INFO L225 Difference]: With dead ends: 49334 [2023-12-25 05:24:36,461 INFO L226 Difference]: Without dead ends: 32442 [2023-12-25 05:24:36,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2023-12-25 05:24:36,550 INFO L413 NwaCegarLoop]: 591 mSDtfsCounter, 2175 mSDsluCounter, 1884 mSDsCounter, 0 mSdLazyCounter, 7842 mSolverCounterSat, 573 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2317 SdHoareTripleChecker+Valid, 2475 SdHoareTripleChecker+Invalid, 8415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 573 IncrementalHoareTripleChecker+Valid, 7842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2023-12-25 05:24:36,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2317 Valid, 2475 Invalid, 8415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [573 Valid, 7842 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2023-12-25 05:24:36,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32442 states. [2023-12-25 05:24:38,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32442 to 31029. [2023-12-25 05:24:39,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31029 states, 22364 states have (on average 1.5035771776068683) internal successors, (33626), 23167 states have internal predecessors, (33626), 6408 states have call successors, (6408), 1680 states have call predecessors, (6408), 2256 states have return successors, (10700), 6667 states have call predecessors, (10700), 6339 states have call successors, (10700) [2023-12-25 05:24:39,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31029 states to 31029 states and 50734 transitions. [2023-12-25 05:24:39,266 INFO L78 Accepts]: Start accepts. Automaton has 31029 states and 50734 transitions. Word has length 143 [2023-12-25 05:24:39,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:24:39,266 INFO L495 AbstractCegarLoop]: Abstraction has 31029 states and 50734 transitions. [2023-12-25 05:24:39,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 8 states have internal predecessors, (102), 6 states have call successors, (20), 5 states have call predecessors, (20), 6 states have return successors, (19), 7 states have call predecessors, (19), 6 states have call successors, (19) [2023-12-25 05:24:39,267 INFO L276 IsEmpty]: Start isEmpty. Operand 31029 states and 50734 transitions. [2023-12-25 05:24:39,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-25 05:24:39,269 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:24:39,269 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:24:39,280 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 (27)] Forceful destruction successful, exit code 0 [2023-12-25 05:24:39,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /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 05:24:39,477 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:24:39,477 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:24:39,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1623562187, now seen corresponding path program 1 times [2023-12-25 05:24:39,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:24:39,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [946485346] [2023-12-25 05:24:39,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:24:39,478 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 05:24:39,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:24:39,479 INFO L229 MonitoredProcess]: Starting monitored process 28 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 05:24:39,511 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 (28)] Waiting until timeout for monitored process [2023-12-25 05:24:39,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:24:39,730 INFO L262 TraceCheckSpWp]: Trace formula consists of 779 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-25 05:24:39,733 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:24:39,880 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-25 05:24:39,880 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:24:39,880 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:24:39,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [946485346] [2023-12-25 05:24:39,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [946485346] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:24:39,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:24:39,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-25 05:24:39,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658401989] [2023-12-25 05:24:39,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:24:39,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-25 05:24:39,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:24:39,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-25 05:24:39,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:24:39,882 INFO L87 Difference]: Start difference. First operand 31029 states and 50734 transitions. Second operand has 11 states, 10 states have (on average 9.6) internal successors, (96), 9 states have internal predecessors, (96), 6 states have call successors, (19), 5 states have call predecessors, (19), 8 states have return successors, (19), 8 states have call predecessors, (19), 6 states have call successors, (19) [2023-12-25 05:24:47,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:24:47,595 INFO L93 Difference]: Finished difference Result 56123 states and 92539 transitions. [2023-12-25 05:24:47,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-25 05:24:47,596 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 9.6) internal successors, (96), 9 states have internal predecessors, (96), 6 states have call successors, (19), 5 states have call predecessors, (19), 8 states have return successors, (19), 8 states have call predecessors, (19), 6 states have call successors, (19) Word has length 143 [2023-12-25 05:24:47,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:24:47,908 INFO L225 Difference]: With dead ends: 56123 [2023-12-25 05:24:47,909 INFO L226 Difference]: Without dead ends: 31643 [2023-12-25 05:24:48,022 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=377, Unknown=0, NotChecked=0, Total=462 [2023-12-25 05:24:48,023 INFO L413 NwaCegarLoop]: 641 mSDtfsCounter, 2661 mSDsluCounter, 3195 mSDsCounter, 0 mSdLazyCounter, 8830 mSolverCounterSat, 707 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2779 SdHoareTripleChecker+Valid, 3836 SdHoareTripleChecker+Invalid, 9537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 707 IncrementalHoareTripleChecker+Valid, 8830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:24:48,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2779 Valid, 3836 Invalid, 9537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [707 Valid, 8830 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2023-12-25 05:24:48,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31643 states. [2023-12-25 05:24:50,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31643 to 31039. [2023-12-25 05:24:50,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31039 states, 22384 states have (on average 1.5017869907076484) internal successors, (33616), 23187 states have internal predecessors, (33616), 6388 states have call successors, (6388), 1670 states have call predecessors, (6388), 2266 states have return successors, (10715), 6667 states have call predecessors, (10715), 6319 states have call successors, (10715) [2023-12-25 05:24:50,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31039 states to 31039 states and 50719 transitions. [2023-12-25 05:24:50,491 INFO L78 Accepts]: Start accepts. Automaton has 31039 states and 50719 transitions. Word has length 143 [2023-12-25 05:24:50,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:24:50,491 INFO L495 AbstractCegarLoop]: Abstraction has 31039 states and 50719 transitions. [2023-12-25 05:24:50,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 9.6) internal successors, (96), 9 states have internal predecessors, (96), 6 states have call successors, (19), 5 states have call predecessors, (19), 8 states have return successors, (19), 8 states have call predecessors, (19), 6 states have call successors, (19) [2023-12-25 05:24:50,492 INFO L276 IsEmpty]: Start isEmpty. Operand 31039 states and 50719 transitions. [2023-12-25 05:24:50,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-12-25 05:24:50,495 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:24:50,495 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:24:50,505 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 (28)] Forceful destruction successful, exit code 0 [2023-12-25 05:24:50,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /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 05:24:50,702 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:24:50,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:24:50,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1583641745, now seen corresponding path program 1 times [2023-12-25 05:24:50,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:24:50,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1051481091] [2023-12-25 05:24:50,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:24:50,703 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 05:24:50,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:24:50,705 INFO L229 MonitoredProcess]: Starting monitored process 29 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 05:24:50,707 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 (29)] Waiting until timeout for monitored process [2023-12-25 05:24:50,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:24:50,989 INFO L262 TraceCheckSpWp]: Trace formula consists of 802 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:24:50,992 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:24:51,093 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-25 05:24:51,093 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:24:51,093 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:24:51,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1051481091] [2023-12-25 05:24:51,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1051481091] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:24:51,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:24:51,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:24:51,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936216299] [2023-12-25 05:24:51,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:24:51,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:24:51,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:24:51,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:24:51,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:24:51,094 INFO L87 Difference]: Start difference. First operand 31039 states and 50719 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 6 states have call successors, (19), 5 states have call predecessors, (19), 5 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2023-12-25 05:24:59,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:24:59,593 INFO L93 Difference]: Finished difference Result 97968 states and 170278 transitions. [2023-12-25 05:24:59,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:24:59,594 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 6 states have call successors, (19), 5 states have call predecessors, (19), 5 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 151 [2023-12-25 05:24:59,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:25:00,048 INFO L225 Difference]: With dead ends: 97968 [2023-12-25 05:25:00,049 INFO L226 Difference]: Without dead ends: 67203 [2023-12-25 05:25:00,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 147 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 05:25:00,258 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 3365 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 2785 mSolverCounterSat, 877 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3508 SdHoareTripleChecker+Valid, 1127 SdHoareTripleChecker+Invalid, 3662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 877 IncrementalHoareTripleChecker+Valid, 2785 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-25 05:25:00,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3508 Valid, 1127 Invalid, 3662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [877 Valid, 2785 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-25 05:25:00,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67203 states. [2023-12-25 05:25:05,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67203 to 64971. [2023-12-25 05:25:05,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64971 states, 45144 states have (on average 1.4859339004075847) internal successors, (67081), 47309 states have internal predecessors, (67081), 15223 states have call successors, (15223), 2952 states have call predecessors, (15223), 4603 states have return successors, (29845), 16170 states have call predecessors, (29845), 15100 states have call successors, (29845) [2023-12-25 05:25:06,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64971 states to 64971 states and 112149 transitions. [2023-12-25 05:25:06,302 INFO L78 Accepts]: Start accepts. Automaton has 64971 states and 112149 transitions. Word has length 151 [2023-12-25 05:25:06,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:25:06,302 INFO L495 AbstractCegarLoop]: Abstraction has 64971 states and 112149 transitions. [2023-12-25 05:25:06,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 6 states have call successors, (19), 5 states have call predecessors, (19), 5 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2023-12-25 05:25:06,302 INFO L276 IsEmpty]: Start isEmpty. Operand 64971 states and 112149 transitions. [2023-12-25 05:25:06,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-25 05:25:06,306 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:25:06,306 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:25:06,313 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 (29)] Ended with exit code 0 [2023-12-25 05:25:06,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /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 05:25:06,513 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:25:06,513 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:25:06,513 INFO L85 PathProgramCache]: Analyzing trace with hash 304191984, now seen corresponding path program 1 times [2023-12-25 05:25:06,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:25:06,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [866049062] [2023-12-25 05:25:06,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:25:06,514 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 05:25:06,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:25:06,515 INFO L229 MonitoredProcess]: Starting monitored process 30 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 05:25:06,515 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 (30)] Waiting until timeout for monitored process [2023-12-25 05:25:06,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:25:06,792 INFO L262 TraceCheckSpWp]: Trace formula consists of 803 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:25:06,796 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:25:06,884 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-25 05:25:06,884 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:25:06,884 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:25:06,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [866049062] [2023-12-25 05:25:06,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [866049062] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:25:06,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:25:06,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:25:06,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389684843] [2023-12-25 05:25:06,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:25:06,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:25:06,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:25:06,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:25:06,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:25:06,885 INFO L87 Difference]: Start difference. First operand 64971 states and 112149 transitions. Second operand has 6 states, 6 states have (on average 17.0) internal successors, (102), 6 states have internal predecessors, (102), 6 states have call successors, (19), 5 states have call predecessors, (19), 5 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2023-12-25 05:25:27,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:25:27,004 INFO L93 Difference]: Finished difference Result 218059 states and 411659 transitions. [2023-12-25 05:25:27,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:25:27,005 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.0) internal successors, (102), 6 states have internal predecessors, (102), 6 states have call successors, (19), 5 states have call predecessors, (19), 5 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 152 [2023-12-25 05:25:27,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:25:28,627 INFO L225 Difference]: With dead ends: 218059 [2023-12-25 05:25:28,627 INFO L226 Difference]: Without dead ends: 153616 [2023-12-25 05:25:29,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 148 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 05:25:29,134 INFO L413 NwaCegarLoop]: 593 mSDtfsCounter, 2185 mSDsluCounter, 789 mSDsCounter, 0 mSdLazyCounter, 3562 mSolverCounterSat, 572 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2330 SdHoareTripleChecker+Valid, 1382 SdHoareTripleChecker+Invalid, 4134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 572 IncrementalHoareTripleChecker+Valid, 3562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-12-25 05:25:29,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2330 Valid, 1382 Invalid, 4134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [572 Valid, 3562 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-12-25 05:25:29,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153616 states. [2023-12-25 05:25:43,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153616 to 149422. [2023-12-25 05:25:43,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149422 states, 100050 states have (on average 1.4690854572713643) internal successors, (146982), 105932 states have internal predecessors, (146982), 39058 states have call successors, (39058), 5534 states have call predecessors, (39058), 10313 states have return successors, (95082), 42146 states have call predecessors, (95082), 38827 states have call successors, (95082)