/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/product-lines/elevator_spec13_product24.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 05:18:40,684 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 05:18:40,736 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-25 05:18:40,741 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 05:18:40,741 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 05:18:40,770 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 05:18:40,771 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 05:18:40,771 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 05:18:40,772 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 05:18:40,774 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 05:18:40,774 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 05:18:40,775 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 05:18:40,775 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 05:18:40,776 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 05:18:40,776 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 05:18:40,776 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 05:18:40,777 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 05:18:40,777 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 05:18:40,777 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 05:18:40,777 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 05:18:40,777 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 05:18:40,777 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 05:18:40,778 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 05:18:40,778 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 05:18:40,778 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 05:18:40,778 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 05:18:40,778 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 05:18:40,778 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 05:18:40,778 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 05:18:40,779 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 05:18:40,779 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 05:18:40,779 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 05:18:40,779 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 05:18:40,780 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 05:18:40,780 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:18:40,780 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 05:18:40,780 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 05:18:40,780 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 05:18:40,780 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 05:18:40,780 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 05:18:40,780 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 05:18:40,781 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 05:18:40,781 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 05:18:40,781 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 05:18:40,781 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 05:18:40,782 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 05:18:40,782 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 05:18:40,986 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 05:18:41,008 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 05:18:41,010 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 05:18:41,010 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 05:18:41,011 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 05:18:41,012 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec13_product24.cil.c [2023-12-25 05:18:41,957 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 05:18:42,232 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 05:18:42,232 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec13_product24.cil.c [2023-12-25 05:18:42,252 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a6150793/b0e4039ce61e4c07a9a5b238c5828fc5/FLAG476f6da6e [2023-12-25 05:18:42,261 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a6150793/b0e4039ce61e4c07a9a5b238c5828fc5 [2023-12-25 05:18:42,263 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 05:18:42,264 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 05:18:42,265 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 05:18:42,265 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 05:18:42,268 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 05:18:42,268 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:18:42" (1/1) ... [2023-12-25 05:18:42,269 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@241d60b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:18:42, skipping insertion in model container [2023-12-25 05:18:42,269 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:18:42" (1/1) ... [2023-12-25 05:18:42,321 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:18:42,680 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec13_product24.cil.c[51490,51503] [2023-12-25 05:18:42,718 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:18:42,736 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-25 05:18:42,753 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:18:42,822 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec13_product24.cil.c[51490,51503] [2023-12-25 05:18:42,832 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:18:42,835 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 05:18:42,842 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [48] [2023-12-25 05:18:42,843 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [414] [2023-12-25 05:18:42,843 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [434] [2023-12-25 05:18:42,843 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2095] [2023-12-25 05:18:42,843 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2449] [2023-12-25 05:18:42,844 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [2458] [2023-12-25 05:18:42,844 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [2549] [2023-12-25 05:18:42,844 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification13_spec.i","") [3210] [2023-12-25 05:18:42,844 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [3299] [2023-12-25 05:18:42,844 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [3417] [2023-12-25 05:18:42,902 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec13_product24.cil.c[51490,51503] [2023-12-25 05:18:42,909 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:18:42,926 INFO L206 MainTranslator]: Completed translation [2023-12-25 05:18:42,926 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:18:42 WrapperNode [2023-12-25 05:18:42,926 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 05:18:42,927 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 05:18:42,927 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 05:18:42,927 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 05:18:42,931 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:18:42" (1/1) ... [2023-12-25 05:18:42,961 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:18:42" (1/1) ... [2023-12-25 05:18:43,007 INFO L138 Inliner]: procedures = 98, calls = 352, calls flagged for inlining = 28, calls inlined = 24, statements flattened = 834 [2023-12-25 05:18:43,008 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 05:18:43,009 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 05:18:43,009 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 05:18:43,009 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 05:18:43,017 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:18:42" (1/1) ... [2023-12-25 05:18:43,017 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:18:42" (1/1) ... [2023-12-25 05:18:43,023 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:18:42" (1/1) ... [2023-12-25 05:18:43,061 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2023-12-25 05:18:43,061 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:18:42" (1/1) ... [2023-12-25 05:18:43,061 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:18:42" (1/1) ... [2023-12-25 05:18:43,075 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:18:42" (1/1) ... [2023-12-25 05:18:43,104 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:18:42" (1/1) ... [2023-12-25 05:18:43,109 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:18:42" (1/1) ... [2023-12-25 05:18:43,129 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:18:42" (1/1) ... [2023-12-25 05:18:43,137 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 05:18:43,137 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 05:18:43,137 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 05:18:43,137 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 05:18:43,138 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:18:42" (1/1) ... [2023-12-25 05:18:43,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:18:43,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 05:18:43,175 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-25 05:18:43,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-25 05:18:43,201 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2023-12-25 05:18:43,201 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2023-12-25 05:18:43,202 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2023-12-25 05:18:43,202 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2023-12-25 05:18:43,202 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-12-25 05:18:43,202 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-12-25 05:18:43,202 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-12-25 05:18:43,202 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-12-25 05:18:43,202 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-25 05:18:43,202 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-25 05:18:43,203 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-12-25 05:18:43,204 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-12-25 05:18:43,204 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-12-25 05:18:43,204 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-12-25 05:18:43,204 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2023-12-25 05:18:43,204 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2023-12-25 05:18:43,204 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2023-12-25 05:18:43,205 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2023-12-25 05:18:43,205 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-12-25 05:18:43,205 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-12-25 05:18:43,205 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-12-25 05:18:43,205 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-12-25 05:18:43,205 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2023-12-25 05:18:43,205 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2023-12-25 05:18:43,205 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 05:18:43,205 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2023-12-25 05:18:43,205 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2023-12-25 05:18:43,205 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-12-25 05:18:43,205 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-12-25 05:18:43,205 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2023-12-25 05:18:43,205 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2023-12-25 05:18:43,205 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2023-12-25 05:18:43,205 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2023-12-25 05:18:43,205 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-12-25 05:18:43,205 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-12-25 05:18:43,206 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-25 05:18:43,206 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-25 05:18:43,206 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-12-25 05:18:43,206 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-12-25 05:18:43,206 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-12-25 05:18:43,206 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-12-25 05:18:43,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 05:18:43,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-25 05:18:43,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-25 05:18:43,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-25 05:18:43,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-12-25 05:18:43,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2023-12-25 05:18:43,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2023-12-25 05:18:43,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2023-12-25 05:18:43,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2023-12-25 05:18:43,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2023-12-25 05:18:43,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2023-12-25 05:18:43,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2023-12-25 05:18:43,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12 [2023-12-25 05:18:43,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#13 [2023-12-25 05:18:43,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#14 [2023-12-25 05:18:43,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#15 [2023-12-25 05:18:43,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#16 [2023-12-25 05:18:43,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#17 [2023-12-25 05:18:43,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#18 [2023-12-25 05:18:43,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#19 [2023-12-25 05:18:43,208 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-12-25 05:18:43,208 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-12-25 05:18:43,208 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-12-25 05:18:43,209 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-12-25 05:18:43,209 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-12-25 05:18:43,209 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-12-25 05:18:43,209 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-12-25 05:18:43,209 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-12-25 05:18:43,209 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-12-25 05:18:43,209 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-12-25 05:18:43,210 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-12-25 05:18:43,210 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-12-25 05:18:43,210 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__weight [2023-12-25 05:18:43,210 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__weight [2023-12-25 05:18:43,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 05:18:43,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 05:18:43,210 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-12-25 05:18:43,210 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-12-25 05:18:43,210 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__executivefloor [2023-12-25 05:18:43,210 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__executivefloor [2023-12-25 05:18:43,387 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 05:18:43,389 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 05:18:44,418 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 05:18:44,510 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 05:18:44,510 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-12-25 05:18:44,511 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:18:44 BoogieIcfgContainer [2023-12-25 05:18:44,511 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 05:18:44,513 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 05:18:44,513 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 05:18:44,515 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 05:18:44,515 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 05:18:42" (1/3) ... [2023-12-25 05:18:44,517 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fbfaf04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:18:44, skipping insertion in model container [2023-12-25 05:18:44,517 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:18:42" (2/3) ... [2023-12-25 05:18:44,517 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fbfaf04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:18:44, skipping insertion in model container [2023-12-25 05:18:44,517 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:18:44" (3/3) ... [2023-12-25 05:18:44,518 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec13_product24.cil.c [2023-12-25 05:18:44,530 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 05:18:44,531 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 05:18:44,584 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 05:18:44,589 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;@7b7967ed, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 05:18:44,589 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 05:18:44,595 INFO L276 IsEmpty]: Start isEmpty. Operand has 604 states, 463 states have (on average 1.7062634989200864) internal successors, (790), 483 states have internal predecessors, (790), 110 states have call successors, (110), 29 states have call predecessors, (110), 29 states have return successors, (110), 106 states have call predecessors, (110), 110 states have call successors, (110) [2023-12-25 05:18:44,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-25 05:18:44,607 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:18:44,608 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:18:44,608 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:18:44,612 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:18:44,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1784768629, now seen corresponding path program 1 times [2023-12-25 05:18:44,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:18:44,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [155073330] [2023-12-25 05:18:44,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:18:44,622 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:18:44,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:18:44,624 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:18:44,654 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-25 05:18:44,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:18:44,979 INFO L262 TraceCheckSpWp]: Trace formula consists of 762 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:18:44,985 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:18:45,060 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-25 05:18:45,060 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:18:45,061 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:18:45,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [155073330] [2023-12-25 05:18:45,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [155073330] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:18:45,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:18:45,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:18:45,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778983455] [2023-12-25 05:18:45,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:18:45,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:18:45,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:18:45,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:18:45,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:18:45,100 INFO L87 Difference]: Start difference. First operand has 604 states, 463 states have (on average 1.7062634989200864) internal successors, (790), 483 states have internal predecessors, (790), 110 states have call successors, (110), 29 states have call predecessors, (110), 29 states have return successors, (110), 106 states have call predecessors, (110), 110 states have call successors, (110) Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-25 05:18:45,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:18:45,275 INFO L93 Difference]: Finished difference Result 1208 states and 2034 transitions. [2023-12-25 05:18:45,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:18:45,277 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 84 [2023-12-25 05:18:45,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:18:45,290 INFO L225 Difference]: With dead ends: 1208 [2023-12-25 05:18:45,290 INFO L226 Difference]: Without dead ends: 602 [2023-12-25 05:18:45,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:18:45,304 INFO L413 NwaCegarLoop]: 966 mSDtfsCounter, 15 mSDsluCounter, 1923 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2889 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:18:45,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2889 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:18:45,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2023-12-25 05:18:45,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 602. [2023-12-25 05:18:45,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 463 states have (on average 1.6781857451403888) internal successors, (777), 481 states have internal predecessors, (777), 110 states have call successors, (110), 30 states have call predecessors, (110), 28 states have return successors, (107), 104 states have call predecessors, (107), 107 states have call successors, (107) [2023-12-25 05:18:45,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 994 transitions. [2023-12-25 05:18:45,375 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 994 transitions. Word has length 84 [2023-12-25 05:18:45,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:18:45,376 INFO L495 AbstractCegarLoop]: Abstraction has 602 states and 994 transitions. [2023-12-25 05:18:45,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-25 05:18:45,376 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 994 transitions. [2023-12-25 05:18:45,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-25 05:18:45,379 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:18:45,379 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:18:45,389 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 (2)] Ended with exit code 0 [2023-12-25 05:18:45,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:18:45,589 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:18:45,589 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:18:45,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1925822373, now seen corresponding path program 1 times [2023-12-25 05:18:45,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:18:45,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2071110062] [2023-12-25 05:18:45,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:18:45,590 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:18:45,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:18:45,591 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:18:45,594 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-25 05:18:45,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:18:45,893 INFO L262 TraceCheckSpWp]: Trace formula consists of 764 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:18:45,897 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:18:45,951 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-12-25 05:18:45,952 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:18:45,952 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:18:45,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2071110062] [2023-12-25 05:18:45,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2071110062] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:18:45,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:18:45,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:18:45,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730946501] [2023-12-25 05:18:45,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:18:45,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:18:45,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:18:45,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:18:45,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:18:45,955 INFO L87 Difference]: Start difference. First operand 602 states and 994 transitions. Second operand has 7 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-25 05:18:46,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:18:46,194 INFO L93 Difference]: Finished difference Result 1212 states and 2004 transitions. [2023-12-25 05:18:46,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:18:46,194 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 86 [2023-12-25 05:18:46,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:18:46,198 INFO L225 Difference]: With dead ends: 1212 [2023-12-25 05:18:46,198 INFO L226 Difference]: Without dead ends: 615 [2023-12-25 05:18:46,201 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:18:46,202 INFO L413 NwaCegarLoop]: 961 mSDtfsCounter, 114 mSDsluCounter, 4705 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 5666 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:18:46,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 5666 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:18:46,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2023-12-25 05:18:46,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 614. [2023-12-25 05:18:46,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 614 states, 472 states have (on average 1.6758474576271187) internal successors, (791), 492 states have internal predecessors, (791), 111 states have call successors, (111), 30 states have call predecessors, (111), 30 states have return successors, (113), 105 states have call predecessors, (113), 108 states have call successors, (113) [2023-12-25 05:18:46,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 1015 transitions. [2023-12-25 05:18:46,230 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 1015 transitions. Word has length 86 [2023-12-25 05:18:46,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:18:46,230 INFO L495 AbstractCegarLoop]: Abstraction has 614 states and 1015 transitions. [2023-12-25 05:18:46,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-25 05:18:46,230 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 1015 transitions. [2023-12-25 05:18:46,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-25 05:18:46,232 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:18:46,232 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:18:46,251 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-25 05:18:46,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:18:46,442 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:18:46,443 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:18:46,443 INFO L85 PathProgramCache]: Analyzing trace with hash -1160837612, now seen corresponding path program 1 times [2023-12-25 05:18:46,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:18:46,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [478439761] [2023-12-25 05:18:46,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:18:46,444 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:18:46,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:18:46,445 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:18:46,446 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-25 05:18:46,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:18:46,777 INFO L262 TraceCheckSpWp]: Trace formula consists of 765 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:18:46,781 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:18:46,824 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-12-25 05:18:46,824 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:18:46,824 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:18:46,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [478439761] [2023-12-25 05:18:46,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [478439761] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:18:46,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:18:46,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:18:46,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021153030] [2023-12-25 05:18:46,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:18:46,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:18:46,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:18:46,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:18:46,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:18:46,826 INFO L87 Difference]: Start difference. First operand 614 states and 1015 transitions. Second operand has 7 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-25 05:18:47,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:18:47,112 INFO L93 Difference]: Finished difference Result 1230 states and 2035 transitions. [2023-12-25 05:18:47,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:18:47,114 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 87 [2023-12-25 05:18:47,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:18:47,118 INFO L225 Difference]: With dead ends: 1230 [2023-12-25 05:18:47,118 INFO L226 Difference]: Without dead ends: 623 [2023-12-25 05:18:47,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:18:47,121 INFO L413 NwaCegarLoop]: 971 mSDtfsCounter, 101 mSDsluCounter, 4735 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 5706 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:18:47,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 5706 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:18:47,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2023-12-25 05:18:47,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 614. [2023-12-25 05:18:47,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 614 states, 472 states have (on average 1.6758474576271187) internal successors, (791), 492 states have internal predecessors, (791), 111 states have call successors, (111), 30 states have call predecessors, (111), 30 states have return successors, (113), 105 states have call predecessors, (113), 108 states have call successors, (113) [2023-12-25 05:18:47,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 1015 transitions. [2023-12-25 05:18:47,158 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 1015 transitions. Word has length 87 [2023-12-25 05:18:47,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:18:47,159 INFO L495 AbstractCegarLoop]: Abstraction has 614 states and 1015 transitions. [2023-12-25 05:18:47,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-25 05:18:47,159 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 1015 transitions. [2023-12-25 05:18:47,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-25 05:18:47,161 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:18:47,161 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:18:47,173 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-25 05:18:47,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:18:47,371 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:18:47,371 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:18:47,371 INFO L85 PathProgramCache]: Analyzing trace with hash -201963670, now seen corresponding path program 1 times [2023-12-25 05:18:47,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:18:47,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [988984532] [2023-12-25 05:18:47,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:18:47,372 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 05:18:47,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:18:47,373 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:18:47,396 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-25 05:18:47,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:18:47,670 INFO L262 TraceCheckSpWp]: Trace formula consists of 765 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:18:47,673 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:18:47,692 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-25 05:18:47,693 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:18:47,693 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:18:47,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [988984532] [2023-12-25 05:18:47,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [988984532] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:18:47,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:18:47,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:18:47,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903616039] [2023-12-25 05:18:47,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:18:47,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:18:47,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:18:47,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:18:47,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:18:47,695 INFO L87 Difference]: Start difference. First operand 614 states and 1015 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-25 05:18:47,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:18:47,795 INFO L93 Difference]: Finished difference Result 1224 states and 2024 transitions. [2023-12-25 05:18:47,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:18:47,796 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 87 [2023-12-25 05:18:47,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:18:47,799 INFO L225 Difference]: With dead ends: 1224 [2023-12-25 05:18:47,799 INFO L226 Difference]: Without dead ends: 615 [2023-12-25 05:18:47,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:18:47,803 INFO L413 NwaCegarLoop]: 960 mSDtfsCounter, 22 mSDsluCounter, 1911 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 2871 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:18:47,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 2871 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:18:47,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2023-12-25 05:18:47,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 615. [2023-12-25 05:18:47,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 615 states, 474 states have (on average 1.6751054852320675) internal successors, (794), 493 states have internal predecessors, (794), 110 states have call successors, (110), 31 states have call predecessors, (110), 30 states have return successors, (109), 104 states have call predecessors, (109), 107 states have call successors, (109) [2023-12-25 05:18:47,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 1013 transitions. [2023-12-25 05:18:47,821 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 1013 transitions. Word has length 87 [2023-12-25 05:18:47,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:18:47,821 INFO L495 AbstractCegarLoop]: Abstraction has 615 states and 1013 transitions. [2023-12-25 05:18:47,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-25 05:18:47,821 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 1013 transitions. [2023-12-25 05:18:47,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-25 05:18:47,823 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:18:47,823 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:18:47,843 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-25 05:18:48,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:18:48,043 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:18:48,043 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:18:48,044 INFO L85 PathProgramCache]: Analyzing trace with hash 380160399, now seen corresponding path program 1 times [2023-12-25 05:18:48,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:18:48,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [149803874] [2023-12-25 05:18:48,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:18:48,045 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:18:48,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:18:48,046 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:18:48,049 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-25 05:18:48,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:18:48,266 INFO L262 TraceCheckSpWp]: Trace formula consists of 644 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:18:48,269 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:18:48,326 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-25 05:18:48,327 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:18:48,327 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:18:48,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [149803874] [2023-12-25 05:18:48,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [149803874] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:18:48,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:18:48,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:18:48,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572925207] [2023-12-25 05:18:48,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:18:48,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:18:48,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:18:48,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:18:48,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:18:48,330 INFO L87 Difference]: Start difference. First operand 615 states and 1013 transitions. Second operand has 7 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-25 05:18:48,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:18:48,562 INFO L93 Difference]: Finished difference Result 1228 states and 2028 transitions. [2023-12-25 05:18:48,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:18:48,564 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 77 [2023-12-25 05:18:48,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:18:48,567 INFO L225 Difference]: With dead ends: 1228 [2023-12-25 05:18:48,567 INFO L226 Difference]: Without dead ends: 623 [2023-12-25 05:18:48,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:18:48,570 INFO L413 NwaCegarLoop]: 971 mSDtfsCounter, 100 mSDsluCounter, 4734 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 5705 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:18:48,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 5705 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:18:48,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2023-12-25 05:18:48,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 615. [2023-12-25 05:18:48,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 615 states, 474 states have (on average 1.6751054852320675) internal successors, (794), 493 states have internal predecessors, (794), 110 states have call successors, (110), 31 states have call predecessors, (110), 30 states have return successors, (109), 104 states have call predecessors, (109), 107 states have call successors, (109) [2023-12-25 05:18:48,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 1013 transitions. [2023-12-25 05:18:48,586 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 1013 transitions. Word has length 77 [2023-12-25 05:18:48,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:18:48,586 INFO L495 AbstractCegarLoop]: Abstraction has 615 states and 1013 transitions. [2023-12-25 05:18:48,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-25 05:18:48,586 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 1013 transitions. [2023-12-25 05:18:48,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-25 05:18:48,587 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:18:48,588 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:18:48,597 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-25 05:18:48,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:18:48,795 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:18:48,795 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:18:48,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1340527562, now seen corresponding path program 1 times [2023-12-25 05:18:48,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:18:48,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1119576026] [2023-12-25 05:18:48,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:18:48,796 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:18:48,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:18:48,797 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:18:48,830 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 (7)] Waiting until timeout for monitored process [2023-12-25 05:18:49,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:18:49,030 INFO L262 TraceCheckSpWp]: Trace formula consists of 645 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:18:49,033 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:18:49,052 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-25 05:18:49,052 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:18:49,052 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:18:49,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1119576026] [2023-12-25 05:18:49,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1119576026] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:18:49,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:18:49,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:18:49,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233060271] [2023-12-25 05:18:49,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:18:49,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:18:49,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:18:49,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:18:49,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:18:49,054 INFO L87 Difference]: Start difference. First operand 615 states and 1013 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-25 05:18:49,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:18:49,238 INFO L93 Difference]: Finished difference Result 1247 states and 2065 transitions. [2023-12-25 05:18:49,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:18:49,238 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 78 [2023-12-25 05:18:49,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:18:49,242 INFO L225 Difference]: With dead ends: 1247 [2023-12-25 05:18:49,242 INFO L226 Difference]: Without dead ends: 642 [2023-12-25 05:18:49,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:18:49,245 INFO L413 NwaCegarLoop]: 922 mSDtfsCounter, 110 mSDsluCounter, 1795 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 2717 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:18:49,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 2717 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:18:49,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2023-12-25 05:18:49,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 634. [2023-12-25 05:18:49,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 634 states, 492 states have (on average 1.670731707317073) internal successors, (822), 511 states have internal predecessors, (822), 110 states have call successors, (110), 32 states have call predecessors, (110), 31 states have return successors, (108), 104 states have call predecessors, (108), 107 states have call successors, (108) [2023-12-25 05:18:49,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 1040 transitions. [2023-12-25 05:18:49,263 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 1040 transitions. Word has length 78 [2023-12-25 05:18:49,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:18:49,263 INFO L495 AbstractCegarLoop]: Abstraction has 634 states and 1040 transitions. [2023-12-25 05:18:49,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-25 05:18:49,263 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 1040 transitions. [2023-12-25 05:18:49,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-25 05:18:49,264 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:18:49,264 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:18:49,290 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-25 05:18:49,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:18:49,472 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:18:49,472 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:18:49,472 INFO L85 PathProgramCache]: Analyzing trace with hash 2010604249, now seen corresponding path program 1 times [2023-12-25 05:18:49,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:18:49,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1818023031] [2023-12-25 05:18:49,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:18:49,473 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 05:18:49,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:18:49,474 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:18:49,498 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-25 05:18:49,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:18:49,706 INFO L262 TraceCheckSpWp]: Trace formula consists of 645 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:18:49,709 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:18:49,748 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-25 05:18:49,749 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:18:49,749 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:18:49,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1818023031] [2023-12-25 05:18:49,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1818023031] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:18:49,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:18:49,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:18:49,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940913900] [2023-12-25 05:18:49,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:18:49,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:18:49,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:18:49,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:18:49,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:18:49,750 INFO L87 Difference]: Start difference. First operand 634 states and 1040 transitions. Second operand has 7 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-25 05:18:49,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:18:49,937 INFO L93 Difference]: Finished difference Result 1274 states and 2094 transitions. [2023-12-25 05:18:49,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:18:49,937 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 79 [2023-12-25 05:18:49,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:18:49,941 INFO L225 Difference]: With dead ends: 1274 [2023-12-25 05:18:49,941 INFO L226 Difference]: Without dead ends: 650 [2023-12-25 05:18:49,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:18:49,944 INFO L413 NwaCegarLoop]: 961 mSDtfsCounter, 149 mSDsluCounter, 4668 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 5629 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:18:49,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 5629 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:18:49,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2023-12-25 05:18:49,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 634. [2023-12-25 05:18:49,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 634 states, 492 states have (on average 1.670731707317073) internal successors, (822), 511 states have internal predecessors, (822), 110 states have call successors, (110), 32 states have call predecessors, (110), 31 states have return successors, (108), 104 states have call predecessors, (108), 107 states have call successors, (108) [2023-12-25 05:18:49,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 1040 transitions. [2023-12-25 05:18:49,958 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 1040 transitions. Word has length 79 [2023-12-25 05:18:49,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:18:49,958 INFO L495 AbstractCegarLoop]: Abstraction has 634 states and 1040 transitions. [2023-12-25 05:18:49,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-25 05:18:49,958 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 1040 transitions. [2023-12-25 05:18:49,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-25 05:18:49,959 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:18:49,959 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:18:49,970 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 05:18:50,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:18:50,171 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:18:50,171 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:18:50,171 INFO L85 PathProgramCache]: Analyzing trace with hash 966606686, now seen corresponding path program 1 times [2023-12-25 05:18:50,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:18:50,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1628597761] [2023-12-25 05:18:50,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:18:50,172 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:18:50,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:18:50,173 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:18:50,194 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-25 05:18:50,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:18:50,399 INFO L262 TraceCheckSpWp]: Trace formula consists of 647 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:18:50,402 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:18:50,459 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-25 05:18:50,459 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:18:50,460 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:18:50,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1628597761] [2023-12-25 05:18:50,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1628597761] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:18:50,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:18:50,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:18:50,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001294683] [2023-12-25 05:18:50,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:18:50,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:18:50,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:18:50,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:18:50,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:18:50,461 INFO L87 Difference]: Start difference. First operand 634 states and 1040 transitions. Second operand has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-25 05:18:50,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:18:50,722 INFO L93 Difference]: Finished difference Result 1268 states and 2084 transitions. [2023-12-25 05:18:50,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:18:50,723 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 80 [2023-12-25 05:18:50,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:18:50,726 INFO L225 Difference]: With dead ends: 1268 [2023-12-25 05:18:50,726 INFO L226 Difference]: Without dead ends: 644 [2023-12-25 05:18:50,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 73 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 05:18:50,729 INFO L413 NwaCegarLoop]: 951 mSDtfsCounter, 103 mSDsluCounter, 5611 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 6562 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:18:50,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 6562 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:18:50,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2023-12-25 05:18:50,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 638. [2023-12-25 05:18:50,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 496 states have (on average 1.6653225806451613) internal successors, (826), 515 states have internal predecessors, (826), 110 states have call successors, (110), 32 states have call predecessors, (110), 31 states have return successors, (108), 104 states have call predecessors, (108), 107 states have call successors, (108) [2023-12-25 05:18:50,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 1044 transitions. [2023-12-25 05:18:50,743 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 1044 transitions. Word has length 80 [2023-12-25 05:18:50,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:18:50,743 INFO L495 AbstractCegarLoop]: Abstraction has 638 states and 1044 transitions. [2023-12-25 05:18:50,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-25 05:18:50,743 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 1044 transitions. [2023-12-25 05:18:50,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-25 05:18:50,744 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:18:50,744 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:18:50,755 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-25 05:18:50,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:18:50,956 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:18:50,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:18:50,956 INFO L85 PathProgramCache]: Analyzing trace with hash 302302568, now seen corresponding path program 1 times [2023-12-25 05:18:50,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:18:50,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [460805569] [2023-12-25 05:18:50,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:18:50,957 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:18:50,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:18:50,958 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:18:50,975 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-25 05:18:51,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:18:51,241 INFO L262 TraceCheckSpWp]: Trace formula consists of 771 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:18:51,244 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:18:51,311 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-12-25 05:18:51,311 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:18:51,311 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:18:51,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [460805569] [2023-12-25 05:18:51,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [460805569] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:18:51,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:18:51,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:18:51,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719747352] [2023-12-25 05:18:51,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:18:51,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:18:51,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:18:51,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:18:51,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:18:51,313 INFO L87 Difference]: Start difference. First operand 638 states and 1044 transitions. Second operand has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-25 05:18:51,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:18:51,602 INFO L93 Difference]: Finished difference Result 1278 states and 2096 transitions. [2023-12-25 05:18:51,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:18:51,603 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 93 [2023-12-25 05:18:51,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:18:51,607 INFO L225 Difference]: With dead ends: 1278 [2023-12-25 05:18:51,607 INFO L226 Difference]: Without dead ends: 650 [2023-12-25 05:18:51,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:18:51,611 INFO L413 NwaCegarLoop]: 951 mSDtfsCounter, 102 mSDsluCounter, 5611 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 6562 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:18:51,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 6562 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:18:51,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2023-12-25 05:18:51,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 644. [2023-12-25 05:18:51,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 644 states, 502 states have (on average 1.657370517928287) internal successors, (832), 521 states have internal predecessors, (832), 110 states have call successors, (110), 32 states have call predecessors, (110), 31 states have return successors, (108), 104 states have call predecessors, (108), 107 states have call successors, (108) [2023-12-25 05:18:51,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 1050 transitions. [2023-12-25 05:18:51,627 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 1050 transitions. Word has length 93 [2023-12-25 05:18:51,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:18:51,627 INFO L495 AbstractCegarLoop]: Abstraction has 644 states and 1050 transitions. [2023-12-25 05:18:51,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-25 05:18:51,628 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 1050 transitions. [2023-12-25 05:18:51,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-25 05:18:51,630 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:18:51,630 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:18:51,652 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 05:18:51,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:18:51,840 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:18:51,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:18:51,841 INFO L85 PathProgramCache]: Analyzing trace with hash 437543129, now seen corresponding path program 1 times [2023-12-25 05:18:51,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:18:51,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1171771569] [2023-12-25 05:18:51,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:18:51,841 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:18:51,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:18:51,842 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:18:51,844 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-25 05:18:52,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:18:52,052 INFO L262 TraceCheckSpWp]: Trace formula consists of 649 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:18:52,054 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:18:52,098 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-25 05:18:52,098 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:18:52,098 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:18:52,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1171771569] [2023-12-25 05:18:52,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1171771569] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:18:52,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:18:52,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:18:52,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758812620] [2023-12-25 05:18:52,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:18:52,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:18:52,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:18:52,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:18:52,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:18:52,100 INFO L87 Difference]: Start difference. First operand 644 states and 1050 transitions. Second operand has 8 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-25 05:18:52,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:18:52,431 INFO L93 Difference]: Finished difference Result 1292 states and 2112 transitions. [2023-12-25 05:18:52,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:18:52,431 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 82 [2023-12-25 05:18:52,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:18:52,435 INFO L225 Difference]: With dead ends: 1292 [2023-12-25 05:18:52,435 INFO L226 Difference]: Without dead ends: 658 [2023-12-25 05:18:52,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:18:52,437 INFO L413 NwaCegarLoop]: 951 mSDtfsCounter, 102 mSDsluCounter, 5611 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 6562 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 05:18:52,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 6562 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 05:18:52,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2023-12-25 05:18:52,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 652. [2023-12-25 05:18:52,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 652 states, 510 states have (on average 1.6470588235294117) internal successors, (840), 529 states have internal predecessors, (840), 110 states have call successors, (110), 32 states have call predecessors, (110), 31 states have return successors, (108), 104 states have call predecessors, (108), 107 states have call successors, (108) [2023-12-25 05:18:52,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 1058 transitions. [2023-12-25 05:18:52,455 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 1058 transitions. Word has length 82 [2023-12-25 05:18:52,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:18:52,455 INFO L495 AbstractCegarLoop]: Abstraction has 652 states and 1058 transitions. [2023-12-25 05:18:52,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-25 05:18:52,456 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 1058 transitions. [2023-12-25 05:18:52,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-25 05:18:52,457 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:18:52,457 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:18:52,464 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-25 05:18:52,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:18:52,664 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:18:52,664 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:18:52,665 INFO L85 PathProgramCache]: Analyzing trace with hash 266657539, now seen corresponding path program 1 times [2023-12-25 05:18:52,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:18:52,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [609137557] [2023-12-25 05:18:52,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:18:52,665 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:18:52,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:18:52,666 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:18:52,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-25 05:18:52,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:18:52,949 INFO L262 TraceCheckSpWp]: Trace formula consists of 773 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:18:52,951 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:18:52,989 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-12-25 05:18:52,989 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:18:52,989 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:18:52,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [609137557] [2023-12-25 05:18:52,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [609137557] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:18:52,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:18:52,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:18:52,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104366428] [2023-12-25 05:18:52,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:18:52,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:18:52,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:18:52,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:18:52,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:18:52,991 INFO L87 Difference]: Start difference. First operand 652 states and 1058 transitions. Second operand has 7 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-25 05:18:53,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:18:53,209 INFO L93 Difference]: Finished difference Result 1228 states and 1990 transitions. [2023-12-25 05:18:53,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:18:53,210 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 95 [2023-12-25 05:18:53,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:18:53,213 INFO L225 Difference]: With dead ends: 1228 [2023-12-25 05:18:53,213 INFO L226 Difference]: Without dead ends: 662 [2023-12-25 05:18:53,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:18:53,216 INFO L413 NwaCegarLoop]: 963 mSDtfsCounter, 96 mSDsluCounter, 4715 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 5678 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:18:53,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 5678 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:18:53,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2023-12-25 05:18:53,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 658. [2023-12-25 05:18:53,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 658 states, 513 states have (on average 1.6432748538011697) internal successors, (843), 534 states have internal predecessors, (843), 111 states have call successors, (111), 32 states have call predecessors, (111), 33 states have return successors, (112), 105 states have call predecessors, (112), 108 states have call successors, (112) [2023-12-25 05:18:53,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 1066 transitions. [2023-12-25 05:18:53,231 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 1066 transitions. Word has length 95 [2023-12-25 05:18:53,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:18:53,231 INFO L495 AbstractCegarLoop]: Abstraction has 658 states and 1066 transitions. [2023-12-25 05:18:53,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-25 05:18:53,231 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 1066 transitions. [2023-12-25 05:18:53,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-25 05:18:53,232 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:18:53,232 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:18:53,242 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-25 05:18:53,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:18:53,442 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:18:53,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:18:53,442 INFO L85 PathProgramCache]: Analyzing trace with hash 670388401, now seen corresponding path program 1 times [2023-12-25 05:18:53,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:18:53,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2118494609] [2023-12-25 05:18:53,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:18:53,443 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:18:53,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:18:53,444 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:18:53,444 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-25 05:18:53,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:18:53,685 INFO L262 TraceCheckSpWp]: Trace formula consists of 651 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:18:53,688 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:18:53,701 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-25 05:18:53,702 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:18:53,702 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:18:53,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2118494609] [2023-12-25 05:18:53,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2118494609] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:18:53,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:18:53,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:18:53,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27837138] [2023-12-25 05:18:53,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:18:53,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:18:53,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:18:53,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:18:53,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:18:53,703 INFO L87 Difference]: Start difference. First operand 658 states and 1066 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-25 05:18:53,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:18:53,783 INFO L93 Difference]: Finished difference Result 1290 states and 2093 transitions. [2023-12-25 05:18:53,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:18:53,783 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 84 [2023-12-25 05:18:53,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:18:53,786 INFO L225 Difference]: With dead ends: 1290 [2023-12-25 05:18:53,786 INFO L226 Difference]: Without dead ends: 641 [2023-12-25 05:18:53,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:18:53,788 INFO L413 NwaCegarLoop]: 959 mSDtfsCounter, 24 mSDsluCounter, 1911 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 2870 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:18:53,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 2870 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:18:53,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2023-12-25 05:18:53,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 641. [2023-12-25 05:18:53,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 499 states have (on average 1.6372745490981964) internal successors, (817), 518 states have internal predecessors, (817), 110 states have call successors, (110), 32 states have call predecessors, (110), 31 states have return successors, (108), 104 states have call predecessors, (108), 107 states have call successors, (108) [2023-12-25 05:18:53,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 1035 transitions. [2023-12-25 05:18:53,801 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 1035 transitions. Word has length 84 [2023-12-25 05:18:53,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:18:53,801 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 1035 transitions. [2023-12-25 05:18:53,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-25 05:18:53,801 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 1035 transitions. [2023-12-25 05:18:53,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-25 05:18:53,802 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:18:53,802 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:18:53,811 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-25 05:18:54,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:18:54,009 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:18:54,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:18:54,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1969094695, now seen corresponding path program 1 times [2023-12-25 05:18:54,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:18:54,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1183235545] [2023-12-25 05:18:54,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:18:54,010 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:18:54,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:18:54,011 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:18:54,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-25 05:18:54,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:18:54,276 INFO L262 TraceCheckSpWp]: Trace formula consists of 775 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:18:54,279 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:18:54,333 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-12-25 05:18:54,333 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:18:54,333 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:18:54,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1183235545] [2023-12-25 05:18:54,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1183235545] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:18:54,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:18:54,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:18:54,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111294964] [2023-12-25 05:18:54,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:18:54,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:18:54,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:18:54,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:18:54,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:18:54,335 INFO L87 Difference]: Start difference. First operand 641 states and 1035 transitions. Second operand has 7 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-25 05:18:54,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:18:54,524 INFO L93 Difference]: Finished difference Result 1211 states and 1958 transitions. [2023-12-25 05:18:54,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:18:54,524 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 97 [2023-12-25 05:18:54,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:18:54,527 INFO L225 Difference]: With dead ends: 1211 [2023-12-25 05:18:54,527 INFO L226 Difference]: Without dead ends: 634 [2023-12-25 05:18:54,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:18:54,529 INFO L413 NwaCegarLoop]: 943 mSDtfsCounter, 85 mSDsluCounter, 4629 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 5572 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:18:54,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 5572 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:18:54,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2023-12-25 05:18:54,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 632. [2023-12-25 05:18:54,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 632 states, 490 states have (on average 1.6346938775510205) internal successors, (801), 509 states have internal predecessors, (801), 110 states have call successors, (110), 32 states have call predecessors, (110), 31 states have return successors, (108), 104 states have call predecessors, (108), 107 states have call successors, (108) [2023-12-25 05:18:54,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632 states to 632 states and 1019 transitions. [2023-12-25 05:18:54,542 INFO L78 Accepts]: Start accepts. Automaton has 632 states and 1019 transitions. Word has length 97 [2023-12-25 05:18:54,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:18:54,542 INFO L495 AbstractCegarLoop]: Abstraction has 632 states and 1019 transitions. [2023-12-25 05:18:54,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-25 05:18:54,543 INFO L276 IsEmpty]: Start isEmpty. Operand 632 states and 1019 transitions. [2023-12-25 05:18:54,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-25 05:18:54,543 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:18:54,544 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:18:54,556 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-25 05:18:54,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:18:54,756 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:18:54,757 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:18:54,757 INFO L85 PathProgramCache]: Analyzing trace with hash -29502002, now seen corresponding path program 1 times [2023-12-25 05:18:54,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:18:54,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [513252320] [2023-12-25 05:18:54,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:18:54,757 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:18:54,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:18:54,759 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:18:54,760 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-25 05:18:54,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:18:54,966 INFO L262 TraceCheckSpWp]: Trace formula consists of 651 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:18:54,968 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:18:55,006 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-25 05:18:55,006 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:18:55,006 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:18:55,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [513252320] [2023-12-25 05:18:55,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [513252320] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:18:55,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:18:55,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:18:55,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316269728] [2023-12-25 05:18:55,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:18:55,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:18:55,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:18:55,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:18:55,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:18:55,007 INFO L87 Difference]: Start difference. First operand 632 states and 1019 transitions. Second operand has 7 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-25 05:18:55,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:18:55,189 INFO L93 Difference]: Finished difference Result 1202 states and 1942 transitions. [2023-12-25 05:18:55,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:18:55,190 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 85 [2023-12-25 05:18:55,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:18:55,192 INFO L225 Difference]: With dead ends: 1202 [2023-12-25 05:18:55,192 INFO L226 Difference]: Without dead ends: 621 [2023-12-25 05:18:55,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:18:55,195 INFO L413 NwaCegarLoop]: 935 mSDtfsCounter, 97 mSDsluCounter, 4573 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 5508 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:18:55,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 5508 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:18:55,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2023-12-25 05:18:55,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 619. [2023-12-25 05:18:55,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 619 states, 477 states have (on average 1.6184486373165619) internal successors, (772), 496 states have internal predecessors, (772), 110 states have call successors, (110), 32 states have call predecessors, (110), 31 states have return successors, (107), 104 states have call predecessors, (107), 107 states have call successors, (107) [2023-12-25 05:18:55,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 989 transitions. [2023-12-25 05:18:55,208 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 989 transitions. Word has length 85 [2023-12-25 05:18:55,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:18:55,209 INFO L495 AbstractCegarLoop]: Abstraction has 619 states and 989 transitions. [2023-12-25 05:18:55,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-25 05:18:55,209 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 989 transitions. [2023-12-25 05:18:55,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-25 05:18:55,210 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:18:55,210 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:18:55,219 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-12-25 05:18:55,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:18:55,417 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:18:55,418 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:18:55,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1939389707, now seen corresponding path program 1 times [2023-12-25 05:18:55,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:18:55,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1652346306] [2023-12-25 05:18:55,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:18:55,418 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:18:55,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:18:55,419 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:18:55,420 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-25 05:18:55,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:18:55,664 INFO L262 TraceCheckSpWp]: Trace formula consists of 654 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:18:55,666 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:18:55,688 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-25 05:18:55,688 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:18:55,689 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:18:55,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1652346306] [2023-12-25 05:18:55,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1652346306] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:18:55,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:18:55,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:18:55,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821721931] [2023-12-25 05:18:55,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:18:55,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:18:55,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:18:55,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:18:55,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:18:55,690 INFO L87 Difference]: Start difference. First operand 619 states and 989 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-25 05:18:55,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:18:55,850 INFO L93 Difference]: Finished difference Result 1251 states and 1997 transitions. [2023-12-25 05:18:55,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:18:55,851 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 87 [2023-12-25 05:18:55,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:18:55,854 INFO L225 Difference]: With dead ends: 1251 [2023-12-25 05:18:55,854 INFO L226 Difference]: Without dead ends: 619 [2023-12-25 05:18:55,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:18:55,857 INFO L413 NwaCegarLoop]: 904 mSDtfsCounter, 74 mSDsluCounter, 1781 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 2685 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:18:55,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 2685 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:18:55,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2023-12-25 05:18:55,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 619. [2023-12-25 05:18:55,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 619 states, 477 states have (on average 1.60167714884696) internal successors, (764), 495 states have internal predecessors, (764), 110 states have call successors, (110), 33 states have call predecessors, (110), 31 states have return successors, (107), 104 states have call predecessors, (107), 107 states have call successors, (107) [2023-12-25 05:18:55,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 981 transitions. [2023-12-25 05:18:55,871 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 981 transitions. Word has length 87 [2023-12-25 05:18:55,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:18:55,871 INFO L495 AbstractCegarLoop]: Abstraction has 619 states and 981 transitions. [2023-12-25 05:18:55,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-25 05:18:55,871 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 981 transitions. [2023-12-25 05:18:55,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-25 05:18:55,872 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:18:55,872 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:18:55,880 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-12-25 05:18:56,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:18:56,079 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:18:56,079 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:18:56,079 INFO L85 PathProgramCache]: Analyzing trace with hash -813574546, now seen corresponding path program 1 times [2023-12-25 05:18:56,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:18:56,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [242925989] [2023-12-25 05:18:56,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:18:56,080 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:18:56,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:18:56,081 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:18:56,082 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-25 05:18:56,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:18:56,306 INFO L262 TraceCheckSpWp]: Trace formula consists of 655 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 05:18:56,308 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:18:56,511 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-25 05:18:56,512 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:18:56,513 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:18:56,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [242925989] [2023-12-25 05:18:56,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [242925989] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:18:56,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:18:56,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 05:18:56,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919285692] [2023-12-25 05:18:56,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:18:56,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:18:56,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:18:56,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:18:56,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:18:56,515 INFO L87 Difference]: Start difference. First operand 619 states and 981 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-25 05:18:56,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:18:56,800 INFO L93 Difference]: Finished difference Result 1741 states and 2821 transitions. [2023-12-25 05:18:56,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:18:56,801 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 88 [2023-12-25 05:18:56,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:18:56,806 INFO L225 Difference]: With dead ends: 1741 [2023-12-25 05:18:56,806 INFO L226 Difference]: Without dead ends: 1179 [2023-12-25 05:18:56,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:18:56,808 INFO L413 NwaCegarLoop]: 925 mSDtfsCounter, 877 mSDsluCounter, 867 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 877 SdHoareTripleChecker+Valid, 1792 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 05:18:56,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [877 Valid, 1792 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 05:18:56,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1179 states. [2023-12-25 05:18:56,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1179 to 1114. [2023-12-25 05:18:56,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1114 states, 868 states have (on average 1.6232718894009217) internal successors, (1409), 895 states have internal predecessors, (1409), 192 states have call successors, (192), 56 states have call predecessors, (192), 53 states have return successors, (195), 177 states have call predecessors, (195), 188 states have call successors, (195) [2023-12-25 05:18:56,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1114 states to 1114 states and 1796 transitions. [2023-12-25 05:18:56,840 INFO L78 Accepts]: Start accepts. Automaton has 1114 states and 1796 transitions. Word has length 88 [2023-12-25 05:18:56,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:18:56,840 INFO L495 AbstractCegarLoop]: Abstraction has 1114 states and 1796 transitions. [2023-12-25 05:18:56,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-25 05:18:56,841 INFO L276 IsEmpty]: Start isEmpty. Operand 1114 states and 1796 transitions. [2023-12-25 05:18:56,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2023-12-25 05:18:56,844 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:18:56,844 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:18:56,852 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-12-25 05:18:57,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:18:57,051 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:18:57,051 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:18:57,051 INFO L85 PathProgramCache]: Analyzing trace with hash 1644578439, now seen corresponding path program 1 times [2023-12-25 05:18:57,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:18:57,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1877517933] [2023-12-25 05:18:57,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:18:57,052 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:18:57,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:18:57,053 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:18:57,054 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-25 05:18:57,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:18:57,418 INFO L262 TraceCheckSpWp]: Trace formula consists of 1158 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:18:57,421 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:18:57,503 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-25 05:18:57,503 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:18:57,504 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:18:57,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1877517933] [2023-12-25 05:18:57,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1877517933] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:18:57,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:18:57,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:18:57,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259726713] [2023-12-25 05:18:57,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:18:57,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:18:57,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:18:57,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:18:57,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:18:57,505 INFO L87 Difference]: Start difference. First operand 1114 states and 1796 transitions. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 5 states have call successors, (29), 4 states have call predecessors, (29), 4 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) [2023-12-25 05:19:01,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:19:01,160 INFO L93 Difference]: Finished difference Result 3876 states and 6330 transitions. [2023-12-25 05:19:01,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-25 05:19:01,161 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 5 states have call successors, (29), 4 states have call predecessors, (29), 4 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) Word has length 200 [2023-12-25 05:19:01,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:19:01,170 INFO L225 Difference]: With dead ends: 3876 [2023-12-25 05:19:01,170 INFO L226 Difference]: Without dead ends: 2819 [2023-12-25 05:19:01,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2023-12-25 05:19:01,175 INFO L413 NwaCegarLoop]: 633 mSDtfsCounter, 2194 mSDsluCounter, 984 mSDsCounter, 0 mSdLazyCounter, 4514 mSolverCounterSat, 723 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2300 SdHoareTripleChecker+Valid, 1617 SdHoareTripleChecker+Invalid, 5237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 723 IncrementalHoareTripleChecker+Valid, 4514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-12-25 05:19:01,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2300 Valid, 1617 Invalid, 5237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [723 Valid, 4514 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-12-25 05:19:01,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2819 states. [2023-12-25 05:19:01,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2819 to 2745. [2023-12-25 05:19:01,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2745 states, 2048 states have (on average 1.5703125) internal successors, (3216), 2114 states have internal predecessors, (3216), 575 states have call successors, (575), 114 states have call predecessors, (575), 121 states have return successors, (656), 554 states have call predecessors, (656), 569 states have call successors, (656) [2023-12-25 05:19:01,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2745 states to 2745 states and 4447 transitions. [2023-12-25 05:19:01,276 INFO L78 Accepts]: Start accepts. Automaton has 2745 states and 4447 transitions. Word has length 200 [2023-12-25 05:19:01,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:19:01,276 INFO L495 AbstractCegarLoop]: Abstraction has 2745 states and 4447 transitions. [2023-12-25 05:19:01,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 5 states have call successors, (29), 4 states have call predecessors, (29), 4 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) [2023-12-25 05:19:01,276 INFO L276 IsEmpty]: Start isEmpty. Operand 2745 states and 4447 transitions. [2023-12-25 05:19:01,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-25 05:19:01,281 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:19:01,281 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:19:01,295 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 05:19:01,493 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 05:19:01,493 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:19:01,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:19:01,494 INFO L85 PathProgramCache]: Analyzing trace with hash -310157011, now seen corresponding path program 1 times [2023-12-25 05:19:01,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:19:01,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1176559262] [2023-12-25 05:19:01,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:19:01,494 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:19:01,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:19:01,495 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 05:19:01,496 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 05:19:01,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:19:01,769 INFO L262 TraceCheckSpWp]: Trace formula consists of 846 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:19:01,771 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:19:01,856 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-25 05:19:01,856 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:19:01,856 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:19:01,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1176559262] [2023-12-25 05:19:01,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1176559262] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:19:01,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:19:01,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:19:01,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023775630] [2023-12-25 05:19:01,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:19:01,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:19:01,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:19:01,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:19:01,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:19:01,858 INFO L87 Difference]: Start difference. First operand 2745 states and 4447 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-25 05:19:02,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:19:02,599 INFO L93 Difference]: Finished difference Result 5457 states and 9112 transitions. [2023-12-25 05:19:02,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:19:02,600 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 139 [2023-12-25 05:19:02,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:19:02,612 INFO L225 Difference]: With dead ends: 5457 [2023-12-25 05:19:02,612 INFO L226 Difference]: Without dead ends: 2769 [2023-12-25 05:19:02,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 135 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 05:19:02,626 INFO L413 NwaCegarLoop]: 895 mSDtfsCounter, 877 mSDsluCounter, 1387 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 895 SdHoareTripleChecker+Valid, 2282 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:19:02,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [895 Valid, 2282 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 05:19:02,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2769 states. [2023-12-25 05:19:02,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2769 to 2769. [2023-12-25 05:19:02,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2769 states, 2066 states have (on average 1.5653436592449177) internal successors, (3234), 2132 states have internal predecessors, (3234), 575 states have call successors, (575), 120 states have call predecessors, (575), 127 states have return successors, (662), 554 states have call predecessors, (662), 569 states have call successors, (662) [2023-12-25 05:19:02,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2769 states to 2769 states and 4471 transitions. [2023-12-25 05:19:02,753 INFO L78 Accepts]: Start accepts. Automaton has 2769 states and 4471 transitions. Word has length 139 [2023-12-25 05:19:02,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:19:02,753 INFO L495 AbstractCegarLoop]: Abstraction has 2769 states and 4471 transitions. [2023-12-25 05:19:02,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-25 05:19:02,754 INFO L276 IsEmpty]: Start isEmpty. Operand 2769 states and 4471 transitions. [2023-12-25 05:19:02,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-25 05:19:02,758 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:19:02,758 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:19:02,778 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 05:19:02,968 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 05:19:02,968 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:19:02,969 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:19:02,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1774935507, now seen corresponding path program 1 times [2023-12-25 05:19:02,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:19:02,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2063437236] [2023-12-25 05:19:02,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:19:02,969 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:19:02,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:19:02,970 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 05:19:02,973 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 05:19:03,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:19:03,239 INFO L262 TraceCheckSpWp]: Trace formula consists of 848 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:19:03,241 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:19:03,376 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-25 05:19:03,376 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:19:03,376 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:19:03,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2063437236] [2023-12-25 05:19:03,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2063437236] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:19:03,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:19:03,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:19:03,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912293642] [2023-12-25 05:19:03,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:19:03,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:19:03,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:19:03,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:19:03,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:19:03,377 INFO L87 Difference]: Start difference. First operand 2769 states and 4471 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-25 05:19:04,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:19:04,078 INFO L93 Difference]: Finished difference Result 5511 states and 9152 transitions. [2023-12-25 05:19:04,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:19:04,079 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 141 [2023-12-25 05:19:04,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:19:04,092 INFO L225 Difference]: With dead ends: 5511 [2023-12-25 05:19:04,092 INFO L226 Difference]: Without dead ends: 2799 [2023-12-25 05:19:04,104 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 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 05:19:04,105 INFO L413 NwaCegarLoop]: 896 mSDtfsCounter, 866 mSDsluCounter, 1387 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 883 SdHoareTripleChecker+Valid, 2283 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:19:04,105 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [883 Valid, 2283 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 05:19:04,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2799 states. [2023-12-25 05:19:04,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2799 to 2799. [2023-12-25 05:19:04,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2799 states, 2090 states have (on average 1.5588516746411483) internal successors, (3258), 2156 states have internal predecessors, (3258), 575 states have call successors, (575), 126 states have call predecessors, (575), 133 states have return successors, (668), 554 states have call predecessors, (668), 569 states have call successors, (668) [2023-12-25 05:19:04,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2799 states to 2799 states and 4501 transitions. [2023-12-25 05:19:04,230 INFO L78 Accepts]: Start accepts. Automaton has 2799 states and 4501 transitions. Word has length 141 [2023-12-25 05:19:04,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:19:04,231 INFO L495 AbstractCegarLoop]: Abstraction has 2799 states and 4501 transitions. [2023-12-25 05:19:04,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-25 05:19:04,231 INFO L276 IsEmpty]: Start isEmpty. Operand 2799 states and 4501 transitions. [2023-12-25 05:19:04,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-25 05:19:04,234 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:19:04,235 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:19:04,266 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 05:19:04,452 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 05:19:04,452 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:19:04,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:19:04,453 INFO L85 PathProgramCache]: Analyzing trace with hash -2042977363, now seen corresponding path program 1 times [2023-12-25 05:19:04,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:19:04,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2097734102] [2023-12-25 05:19:04,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:19:04,453 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:19:04,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:19:04,455 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 05:19:04,488 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 05:19:04,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:19:04,744 INFO L262 TraceCheckSpWp]: Trace formula consists of 850 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:19:04,747 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:19:04,838 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-25 05:19:04,838 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:19:04,838 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:19:04,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2097734102] [2023-12-25 05:19:04,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2097734102] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:19:04,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:19:04,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:19:04,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719549773] [2023-12-25 05:19:04,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:19:04,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:19:04,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:19:04,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:19:04,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:19:04,840 INFO L87 Difference]: Start difference. First operand 2799 states and 4501 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-25 05:19:05,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:19:05,590 INFO L93 Difference]: Finished difference Result 5577 states and 9204 transitions. [2023-12-25 05:19:05,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:19:05,591 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 143 [2023-12-25 05:19:05,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:19:05,603 INFO L225 Difference]: With dead ends: 5577 [2023-12-25 05:19:05,604 INFO L226 Difference]: Without dead ends: 2835 [2023-12-25 05:19:05,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 139 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 05:19:05,615 INFO L413 NwaCegarLoop]: 896 mSDtfsCounter, 874 mSDsluCounter, 1387 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 891 SdHoareTripleChecker+Valid, 2283 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:19:05,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [891 Valid, 2283 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 05:19:05,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2835 states. [2023-12-25 05:19:05,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2835 to 2835. [2023-12-25 05:19:05,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2835 states, 2120 states have (on average 1.5509433962264152) internal successors, (3288), 2186 states have internal predecessors, (3288), 575 states have call successors, (575), 132 states have call predecessors, (575), 139 states have return successors, (674), 554 states have call predecessors, (674), 569 states have call successors, (674) [2023-12-25 05:19:05,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2835 states to 2835 states and 4537 transitions. [2023-12-25 05:19:05,734 INFO L78 Accepts]: Start accepts. Automaton has 2835 states and 4537 transitions. Word has length 143 [2023-12-25 05:19:05,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:19:05,734 INFO L495 AbstractCegarLoop]: Abstraction has 2835 states and 4537 transitions. [2023-12-25 05:19:05,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-25 05:19:05,734 INFO L276 IsEmpty]: Start isEmpty. Operand 2835 states and 4537 transitions. [2023-12-25 05:19:05,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-25 05:19:05,737 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:19:05,737 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:19:05,748 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 05:19:05,945 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 05:19:05,945 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:19:05,946 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:19:05,946 INFO L85 PathProgramCache]: Analyzing trace with hash -2133864373, now seen corresponding path program 1 times [2023-12-25 05:19:05,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:19:05,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [467041812] [2023-12-25 05:19:05,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:19:05,946 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:19:05,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:19:05,947 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 05:19:05,949 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 05:19:06,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:19:06,230 INFO L262 TraceCheckSpWp]: Trace formula consists of 852 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:19:06,232 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:19:06,346 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-25 05:19:06,346 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:19:06,347 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:19:06,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [467041812] [2023-12-25 05:19:06,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [467041812] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:19:06,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:19:06,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:19:06,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720563984] [2023-12-25 05:19:06,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:19:06,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:19:06,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:19:06,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:19:06,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:19:06,348 INFO L87 Difference]: Start difference. First operand 2835 states and 4537 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-25 05:19:07,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:19:07,058 INFO L93 Difference]: Finished difference Result 5655 states and 9268 transitions. [2023-12-25 05:19:07,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:19:07,060 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 145 [2023-12-25 05:19:07,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:19:07,072 INFO L225 Difference]: With dead ends: 5655 [2023-12-25 05:19:07,072 INFO L226 Difference]: Without dead ends: 2877 [2023-12-25 05:19:07,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 141 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 05:19:07,083 INFO L413 NwaCegarLoop]: 896 mSDtfsCounter, 876 mSDsluCounter, 1387 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 893 SdHoareTripleChecker+Valid, 2283 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:19:07,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [893 Valid, 2283 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 05:19:07,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2877 states. [2023-12-25 05:19:07,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2877 to 2877. [2023-12-25 05:19:07,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2877 states, 2156 states have (on average 1.5417439703153988) internal successors, (3324), 2222 states have internal predecessors, (3324), 575 states have call successors, (575), 138 states have call predecessors, (575), 145 states have return successors, (680), 554 states have call predecessors, (680), 569 states have call successors, (680) [2023-12-25 05:19:07,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2877 states to 2877 states and 4579 transitions. [2023-12-25 05:19:07,185 INFO L78 Accepts]: Start accepts. Automaton has 2877 states and 4579 transitions. Word has length 145 [2023-12-25 05:19:07,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:19:07,185 INFO L495 AbstractCegarLoop]: Abstraction has 2877 states and 4579 transitions. [2023-12-25 05:19:07,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-25 05:19:07,185 INFO L276 IsEmpty]: Start isEmpty. Operand 2877 states and 4579 transitions. [2023-12-25 05:19:07,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-25 05:19:07,188 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:19:07,188 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:19:07,197 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 (22)] Ended with exit code 0 [2023-12-25 05:19:07,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:19:07,397 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:19:07,397 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:19:07,397 INFO L85 PathProgramCache]: Analyzing trace with hash -742607827, now seen corresponding path program 1 times [2023-12-25 05:19:07,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:19:07,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1540224023] [2023-12-25 05:19:07,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:19:07,398 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:19:07,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:19:07,399 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:19:07,431 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-12-25 05:19:07,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:19:07,684 INFO L262 TraceCheckSpWp]: Trace formula consists of 854 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-25 05:19:07,686 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:19:07,889 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 10 proven. 9 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-25 05:19:07,889 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:19:08,301 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-12-25 05:19:08,301 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:19:08,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1540224023] [2023-12-25 05:19:08,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1540224023] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:19:08,301 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:19:08,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 18 [2023-12-25 05:19:08,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668873075] [2023-12-25 05:19:08,302 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:19:08,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-25 05:19:08,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:19:08,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-25 05:19:08,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2023-12-25 05:19:08,303 INFO L87 Difference]: Start difference. First operand 2877 states and 4579 transitions. Second operand has 18 states, 16 states have (on average 9.5) internal successors, (152), 14 states have internal predecessors, (152), 8 states have call successors, (36), 6 states have call predecessors, (36), 12 states have return successors, (36), 12 states have call predecessors, (36), 8 states have call successors, (36) [2023-12-25 05:19:16,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:19:16,426 INFO L93 Difference]: Finished difference Result 9280 states and 15210 transitions. [2023-12-25 05:19:16,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-25 05:19:16,429 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 9.5) internal successors, (152), 14 states have internal predecessors, (152), 8 states have call successors, (36), 6 states have call predecessors, (36), 12 states have return successors, (36), 12 states have call predecessors, (36), 8 states have call successors, (36) Word has length 147 [2023-12-25 05:19:16,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:19:16,454 INFO L225 Difference]: With dead ends: 9280 [2023-12-25 05:19:16,454 INFO L226 Difference]: Without dead ends: 6460 [2023-12-25 05:19:16,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=192, Invalid=738, Unknown=0, NotChecked=0, Total=930 [2023-12-25 05:19:16,465 INFO L413 NwaCegarLoop]: 868 mSDtfsCounter, 2337 mSDsluCounter, 5456 mSDsCounter, 0 mSdLazyCounter, 13439 mSolverCounterSat, 717 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2426 SdHoareTripleChecker+Valid, 6324 SdHoareTripleChecker+Invalid, 14156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 717 IncrementalHoareTripleChecker+Valid, 13439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2023-12-25 05:19:16,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2426 Valid, 6324 Invalid, 14156 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [717 Valid, 13439 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2023-12-25 05:19:16,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6460 states. [2023-12-25 05:19:16,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6460 to 6108. [2023-12-25 05:19:16,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6108 states, 4507 states have (on average 1.5369425338362548) internal successors, (6927), 4659 states have internal predecessors, (6927), 1275 states have call successors, (1275), 273 states have call predecessors, (1275), 325 states have return successors, (1645), 1266 states have call predecessors, (1645), 1265 states have call successors, (1645) [2023-12-25 05:19:16,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6108 states to 6108 states and 9847 transitions. [2023-12-25 05:19:16,758 INFO L78 Accepts]: Start accepts. Automaton has 6108 states and 9847 transitions. Word has length 147 [2023-12-25 05:19:16,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:19:16,758 INFO L495 AbstractCegarLoop]: Abstraction has 6108 states and 9847 transitions. [2023-12-25 05:19:16,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 9.5) internal successors, (152), 14 states have internal predecessors, (152), 8 states have call successors, (36), 6 states have call predecessors, (36), 12 states have return successors, (36), 12 states have call predecessors, (36), 8 states have call successors, (36) [2023-12-25 05:19:16,759 INFO L276 IsEmpty]: Start isEmpty. Operand 6108 states and 9847 transitions. [2023-12-25 05:19:16,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-25 05:19:16,764 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:19:16,764 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:19:16,775 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2023-12-25 05:19:16,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:19:16,973 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:19:16,974 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:19:16,974 INFO L85 PathProgramCache]: Analyzing trace with hash -2039305875, now seen corresponding path program 1 times [2023-12-25 05:19:16,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:19:16,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [212071430] [2023-12-25 05:19:16,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:19:16,975 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:19:16,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:19:16,975 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:19:16,977 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-12-25 05:19:17,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:19:17,269 INFO L262 TraceCheckSpWp]: Trace formula consists of 855 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:19:17,272 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:19:17,330 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-25 05:19:17,330 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:19:17,330 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:19:17,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [212071430] [2023-12-25 05:19:17,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [212071430] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:19:17,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:19:17,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:19:17,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399367403] [2023-12-25 05:19:17,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:19:17,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:19:17,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:19:17,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:19:17,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:19:17,332 INFO L87 Difference]: Start difference. First operand 6108 states and 9847 transitions. Second operand has 8 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-25 05:19:17,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:19:17,832 INFO L93 Difference]: Finished difference Result 12020 states and 19423 transitions. [2023-12-25 05:19:17,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:19:17,833 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 148 [2023-12-25 05:19:17,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:19:17,859 INFO L225 Difference]: With dead ends: 12020 [2023-12-25 05:19:17,859 INFO L226 Difference]: Without dead ends: 5934 [2023-12-25 05:19:17,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 141 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 05:19:17,879 INFO L413 NwaCegarLoop]: 901 mSDtfsCounter, 70 mSDsluCounter, 5356 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 6257 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:19:17,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 6257 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:19:17,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5934 states. [2023-12-25 05:19:18,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5934 to 5926. [2023-12-25 05:19:18,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5926 states, 4364 states have (on average 1.546287809349221) internal successors, (6748), 4515 states have internal predecessors, (6748), 1252 states have call successors, (1252), 258 states have call predecessors, (1252), 309 states have return successors, (1579), 1243 states have call predecessors, (1579), 1242 states have call successors, (1579) [2023-12-25 05:19:18,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5926 states to 5926 states and 9579 transitions. [2023-12-25 05:19:18,155 INFO L78 Accepts]: Start accepts. Automaton has 5926 states and 9579 transitions. Word has length 148 [2023-12-25 05:19:18,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:19:18,155 INFO L495 AbstractCegarLoop]: Abstraction has 5926 states and 9579 transitions. [2023-12-25 05:19:18,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-25 05:19:18,155 INFO L276 IsEmpty]: Start isEmpty. Operand 5926 states and 9579 transitions. [2023-12-25 05:19:18,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-12-25 05:19:18,158 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:19:18,158 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:19:18,169 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 05:19:18,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:19:18,367 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:19:18,367 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:19:18,367 INFO L85 PathProgramCache]: Analyzing trace with hash -698118501, now seen corresponding path program 1 times [2023-12-25 05:19:18,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:19:18,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1774273667] [2023-12-25 05:19:18,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:19:18,368 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:19:18,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:19:18,369 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:19:18,369 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-25 05:19:18,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:19:18,697 INFO L262 TraceCheckSpWp]: Trace formula consists of 869 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-25 05:19:18,700 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:19:18,884 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 18 proven. 7 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-25 05:19:18,885 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:19:19,235 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-12-25 05:19:19,235 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:19:19,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1774273667] [2023-12-25 05:19:19,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1774273667] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:19:19,235 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:19:19,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2023-12-25 05:19:19,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469393856] [2023-12-25 05:19:19,235 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:19:19,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-25 05:19:19,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:19:19,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-25 05:19:19,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2023-12-25 05:19:19,237 INFO L87 Difference]: Start difference. First operand 5926 states and 9579 transitions. Second operand has 14 states, 14 states have (on average 11.142857142857142) internal successors, (156), 12 states have internal predecessors, (156), 8 states have call successors, (37), 6 states have call predecessors, (37), 10 states have return successors, (36), 10 states have call predecessors, (36), 8 states have call successors, (36) [2023-12-25 05:19:25,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:19:25,002 INFO L93 Difference]: Finished difference Result 15156 states and 25010 transitions. [2023-12-25 05:19:25,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-25 05:19:25,003 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 11.142857142857142) internal successors, (156), 12 states have internal predecessors, (156), 8 states have call successors, (37), 6 states have call predecessors, (37), 10 states have return successors, (36), 10 states have call predecessors, (36), 8 states have call successors, (36) Word has length 156 [2023-12-25 05:19:25,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:19:25,032 INFO L225 Difference]: With dead ends: 15156 [2023-12-25 05:19:25,032 INFO L226 Difference]: Without dead ends: 9286 [2023-12-25 05:19:25,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 301 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 05:19:25,049 INFO L413 NwaCegarLoop]: 811 mSDtfsCounter, 4210 mSDsluCounter, 3164 mSDsCounter, 0 mSdLazyCounter, 8291 mSolverCounterSat, 1253 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4290 SdHoareTripleChecker+Valid, 3975 SdHoareTripleChecker+Invalid, 9544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1253 IncrementalHoareTripleChecker+Valid, 8291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:19:25,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4290 Valid, 3975 Invalid, 9544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1253 Valid, 8291 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2023-12-25 05:19:25,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9286 states. [2023-12-25 05:19:25,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9286 to 8968. [2023-12-25 05:19:25,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8968 states, 6571 states have (on average 1.5463399786942627) internal successors, (10161), 6795 states have internal predecessors, (10161), 1929 states have call successors, (1929), 378 states have call predecessors, (1929), 467 states have return successors, (2468), 1938 states have call predecessors, (2468), 1915 states have call successors, (2468) [2023-12-25 05:19:25,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8968 states to 8968 states and 14558 transitions. [2023-12-25 05:19:25,511 INFO L78 Accepts]: Start accepts. Automaton has 8968 states and 14558 transitions. Word has length 156 [2023-12-25 05:19:25,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:19:25,511 INFO L495 AbstractCegarLoop]: Abstraction has 8968 states and 14558 transitions. [2023-12-25 05:19:25,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 11.142857142857142) internal successors, (156), 12 states have internal predecessors, (156), 8 states have call successors, (37), 6 states have call predecessors, (37), 10 states have return successors, (36), 10 states have call predecessors, (36), 8 states have call successors, (36) [2023-12-25 05:19:25,511 INFO L276 IsEmpty]: Start isEmpty. Operand 8968 states and 14558 transitions. [2023-12-25 05:19:25,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-25 05:19:25,514 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:19:25,514 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:19:25,526 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2023-12-25 05:19:25,723 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 05:19:25,723 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:19:25,723 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:19:25,723 INFO L85 PathProgramCache]: Analyzing trace with hash -674805295, now seen corresponding path program 1 times [2023-12-25 05:19:25,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:19:25,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [499558095] [2023-12-25 05:19:25,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:19:25,724 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:19:25,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:19:25,725 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 05:19:25,732 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 05:19:25,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:19:26,015 INFO L262 TraceCheckSpWp]: Trace formula consists of 873 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:19:26,018 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:19:26,451 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-12-25 05:19:26,451 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:19:26,452 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:19:26,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [499558095] [2023-12-25 05:19:26,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [499558095] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:19:26,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:19:26,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:19:26,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842635315] [2023-12-25 05:19:26,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:19:26,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:19:26,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:19:26,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:19:26,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:19:26,454 INFO L87 Difference]: Start difference. First operand 8968 states and 14558 transitions. Second operand has 8 states, 8 states have (on average 12.5) internal successors, (100), 7 states have internal predecessors, (100), 6 states have call successors, (22), 5 states have call predecessors, (22), 5 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2023-12-25 05:19:31,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:19:31,301 INFO L93 Difference]: Finished difference Result 24958 states and 41637 transitions. [2023-12-25 05:19:31,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-25 05:19:31,302 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.5) internal successors, (100), 7 states have internal predecessors, (100), 6 states have call successors, (22), 5 states have call predecessors, (22), 5 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) Word has length 158 [2023-12-25 05:19:31,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:19:31,369 INFO L225 Difference]: With dead ends: 24958 [2023-12-25 05:19:31,370 INFO L226 Difference]: Without dead ends: 16046 [2023-12-25 05:19:31,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 151 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 05:19:31,407 INFO L413 NwaCegarLoop]: 566 mSDtfsCounter, 4060 mSDsluCounter, 1019 mSDsCounter, 0 mSdLazyCounter, 4855 mSolverCounterSat, 855 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4266 SdHoareTripleChecker+Valid, 1585 SdHoareTripleChecker+Invalid, 5710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 855 IncrementalHoareTripleChecker+Valid, 4855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-12-25 05:19:31,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4266 Valid, 1585 Invalid, 5710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [855 Valid, 4855 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-12-25 05:19:31,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16046 states. [2023-12-25 05:19:32,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16046 to 13825. [2023-12-25 05:19:32,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13825 states, 10230 states have (on average 1.5525904203323557) internal successors, (15883), 10526 states have internal predecessors, (15883), 2879 states have call successors, (2879), 554 states have call predecessors, (2879), 715 states have return successors, (3908), 2879 states have call predecessors, (3908), 2859 states have call successors, (3908) [2023-12-25 05:19:32,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13825 states to 13825 states and 22670 transitions. [2023-12-25 05:19:32,322 INFO L78 Accepts]: Start accepts. Automaton has 13825 states and 22670 transitions. Word has length 158 [2023-12-25 05:19:32,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:19:32,323 INFO L495 AbstractCegarLoop]: Abstraction has 13825 states and 22670 transitions. [2023-12-25 05:19:32,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.5) internal successors, (100), 7 states have internal predecessors, (100), 6 states have call successors, (22), 5 states have call predecessors, (22), 5 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2023-12-25 05:19:32,323 INFO L276 IsEmpty]: Start isEmpty. Operand 13825 states and 22670 transitions. [2023-12-25 05:19:32,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-25 05:19:32,325 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:19:32,325 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:19:32,337 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 05:19:32,535 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 05:19:32,535 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:19:32,535 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:19:32,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1259828370, now seen corresponding path program 1 times [2023-12-25 05:19:32,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:19:32,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1167412576] [2023-12-25 05:19:32,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:19:32,536 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:19:32,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:19:32,537 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 05:19:32,569 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 05:19:32,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:19:32,909 INFO L262 TraceCheckSpWp]: Trace formula consists of 870 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:19:32,912 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:19:33,016 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-25 05:19:33,016 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:19:33,217 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-25 05:19:33,218 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:19:33,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1167412576] [2023-12-25 05:19:33,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1167412576] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:19:33,218 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:19:33,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2023-12-25 05:19:33,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108772942] [2023-12-25 05:19:33,218 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:19:33,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-25 05:19:33,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:19:33,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-25 05:19:33,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:19:33,219 INFO L87 Difference]: Start difference. First operand 13825 states and 22670 transitions. Second operand has 11 states, 11 states have (on average 12.090909090909092) internal successors, (133), 11 states have internal predecessors, (133), 6 states have call successors, (32), 5 states have call predecessors, (32), 7 states have return successors, (30), 7 states have call predecessors, (30), 6 states have call successors, (30) [2023-12-25 05:19:40,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:19:40,105 INFO L93 Difference]: Finished difference Result 52072 states and 89158 transitions. [2023-12-25 05:19:40,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-25 05:19:40,106 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.090909090909092) internal successors, (133), 11 states have internal predecessors, (133), 6 states have call successors, (32), 5 states have call predecessors, (32), 7 states have return successors, (30), 7 states have call predecessors, (30), 6 states have call successors, (30) Word has length 157 [2023-12-25 05:19:40,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:19:40,294 INFO L225 Difference]: With dead ends: 52072 [2023-12-25 05:19:40,294 INFO L226 Difference]: Without dead ends: 38267 [2023-12-25 05:19:40,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 312 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 05:19:40,373 INFO L413 NwaCegarLoop]: 596 mSDtfsCounter, 6540 mSDsluCounter, 1337 mSDsCounter, 0 mSdLazyCounter, 5223 mSolverCounterSat, 1962 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6655 SdHoareTripleChecker+Valid, 1933 SdHoareTripleChecker+Invalid, 7185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1962 IncrementalHoareTripleChecker+Valid, 5223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:19:40,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6655 Valid, 1933 Invalid, 7185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1962 Valid, 5223 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-12-25 05:19:40,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38267 states. [2023-12-25 05:19:42,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38267 to 33726. [2023-12-25 05:19:42,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33726 states, 24952 states have (on average 1.5322218659826867) internal successors, (38232), 25652 states have internal predecessors, (38232), 6877 states have call successors, (6877), 1537 states have call predecessors, (6877), 1896 states have return successors, (10257), 6849 states have call predecessors, (10257), 6833 states have call successors, (10257) [2023-12-25 05:19:42,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33726 states to 33726 states and 55366 transitions. [2023-12-25 05:19:42,867 INFO L78 Accepts]: Start accepts. Automaton has 33726 states and 55366 transitions. Word has length 157 [2023-12-25 05:19:42,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:19:42,867 INFO L495 AbstractCegarLoop]: Abstraction has 33726 states and 55366 transitions. [2023-12-25 05:19:42,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.090909090909092) internal successors, (133), 11 states have internal predecessors, (133), 6 states have call successors, (32), 5 states have call predecessors, (32), 7 states have return successors, (30), 7 states have call predecessors, (30), 6 states have call successors, (30) [2023-12-25 05:19:42,868 INFO L276 IsEmpty]: Start isEmpty. Operand 33726 states and 55366 transitions. [2023-12-25 05:19:42,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-12-25 05:19:42,870 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:19:42,870 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:19:42,881 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 05:19:43,079 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 05:19:43,079 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:19:43,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:19:43,080 INFO L85 PathProgramCache]: Analyzing trace with hash 223269729, now seen corresponding path program 1 times [2023-12-25 05:19:43,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:19:43,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [677371629] [2023-12-25 05:19:43,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:19:43,081 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:19:43,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:19:43,081 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 05:19:43,082 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 05:19:43,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:19:43,363 INFO L262 TraceCheckSpWp]: Trace formula consists of 880 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-25 05:19:43,366 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:19:43,518 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-25 05:19:43,518 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:19:43,518 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:19:43,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [677371629] [2023-12-25 05:19:43,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [677371629] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:19:43,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:19:43,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 05:19:43,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560077263] [2023-12-25 05:19:43,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:19:43,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 05:19:43,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:19:43,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 05:19:43,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-12-25 05:19:43,520 INFO L87 Difference]: Start difference. First operand 33726 states and 55366 transitions. Second operand has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 8 states have internal predecessors, (104), 6 states have call successors, (22), 5 states have call predecessors, (22), 6 states have return successors, (20), 7 states have call predecessors, (20), 6 states have call successors, (20) [2023-12-25 05:19:54,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:19:54,099 INFO L93 Difference]: Finished difference Result 97967 states and 173552 transitions. [2023-12-25 05:19:54,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-25 05:19:54,100 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 8 states have internal predecessors, (104), 6 states have call successors, (22), 5 states have call predecessors, (22), 6 states have return successors, (20), 7 states have call predecessors, (20), 6 states have call successors, (20) Word has length 163 [2023-12-25 05:19:54,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:19:54,490 INFO L225 Difference]: With dead ends: 97967 [2023-12-25 05:19:54,490 INFO L226 Difference]: Without dead ends: 64225 [2023-12-25 05:19:54,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 156 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 05:19:54,726 INFO L413 NwaCegarLoop]: 584 mSDtfsCounter, 2269 mSDsluCounter, 1805 mSDsCounter, 0 mSdLazyCounter, 8699 mSolverCounterSat, 542 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2396 SdHoareTripleChecker+Valid, 2389 SdHoareTripleChecker+Invalid, 9241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 542 IncrementalHoareTripleChecker+Valid, 8699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:19:54,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2396 Valid, 2389 Invalid, 9241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [542 Valid, 8699 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2023-12-25 05:19:54,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64225 states. [2023-12-25 05:19:59,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64225 to 61241. [2023-12-25 05:19:59,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61241 states, 44431 states have (on average 1.5124125047826968) internal successors, (67198), 45976 states have internal predecessors, (67198), 13325 states have call successors, (13325), 2502 states have call predecessors, (13325), 3484 states have return successors, (21883), 13563 states have call predecessors, (21883), 13254 states have call successors, (21883) [2023-12-25 05:19:59,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61241 states to 61241 states and 102406 transitions. [2023-12-25 05:19:59,850 INFO L78 Accepts]: Start accepts. Automaton has 61241 states and 102406 transitions. Word has length 163 [2023-12-25 05:19:59,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:19:59,850 INFO L495 AbstractCegarLoop]: Abstraction has 61241 states and 102406 transitions. [2023-12-25 05:19:59,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 8 states have internal predecessors, (104), 6 states have call successors, (22), 5 states have call predecessors, (22), 6 states have return successors, (20), 7 states have call predecessors, (20), 6 states have call successors, (20) [2023-12-25 05:19:59,851 INFO L276 IsEmpty]: Start isEmpty. Operand 61241 states and 102406 transitions. [2023-12-25 05:19:59,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-12-25 05:19:59,853 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:19:59,853 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:19:59,861 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 (28)] Ended with exit code 0 [2023-12-25 05:20:00,060 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 05:20:00,060 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:20:00,060 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:20:00,060 INFO L85 PathProgramCache]: Analyzing trace with hash 2131727519, now seen corresponding path program 1 times [2023-12-25 05:20:00,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:20:00,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [614082685] [2023-12-25 05:20:00,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:20:00,061 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 05:20:00,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:20:00,062 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 05:20:00,063 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 05:20:00,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:20:00,339 INFO L262 TraceCheckSpWp]: Trace formula consists of 880 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-25 05:20:00,342 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:20:00,486 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 8 proven. 5 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-25 05:20:00,486 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:20:00,881 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-25 05:20:00,882 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:20:00,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [614082685] [2023-12-25 05:20:00,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [614082685] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-25 05:20:00,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-25 05:20:00,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [11] total 18 [2023-12-25 05:20:00,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277360299] [2023-12-25 05:20:00,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:20:00,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-25 05:20:00,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:20:00,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-25 05:20:00,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2023-12-25 05:20:00,883 INFO L87 Difference]: Start difference. First operand 61241 states and 102406 transitions. Second operand has 11 states, 10 states have (on average 9.7) internal successors, (97), 9 states have internal predecessors, (97), 6 states have call successors, (21), 4 states have call predecessors, (21), 6 states have return successors, (20), 8 states have call predecessors, (20), 6 states have call successors, (20) [2023-12-25 05:20:09,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:20:09,099 INFO L93 Difference]: Finished difference Result 116164 states and 196564 transitions. [2023-12-25 05:20:09,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-25 05:20:09,100 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 9.7) internal successors, (97), 9 states have internal predecessors, (97), 6 states have call successors, (21), 4 states have call predecessors, (21), 6 states have return successors, (20), 8 states have call predecessors, (20), 6 states have call successors, (20) Word has length 163 [2023-12-25 05:20:09,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:20:09,451 INFO L225 Difference]: With dead ends: 116164 [2023-12-25 05:20:09,451 INFO L226 Difference]: Without dead ends: 62307 [2023-12-25 05:20:09,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 310 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=101, Invalid=499, Unknown=0, NotChecked=0, Total=600 [2023-12-25 05:20:09,967 INFO L413 NwaCegarLoop]: 1363 mSDtfsCounter, 4331 mSDsluCounter, 4512 mSDsCounter, 0 mSdLazyCounter, 3543 mSolverCounterSat, 1052 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4339 SdHoareTripleChecker+Valid, 5875 SdHoareTripleChecker+Invalid, 4595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1052 IncrementalHoareTripleChecker+Valid, 3543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-12-25 05:20:09,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4339 Valid, 5875 Invalid, 4595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1052 Valid, 3543 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-12-25 05:20:10,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62307 states. [2023-12-25 05:20:14,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62307 to 61033. [2023-12-25 05:20:14,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61033 states, 44327 states have (on average 1.5122611500891106) internal successors, (67034), 45872 states have internal predecessors, (67034), 13265 states have call successors, (13265), 2458 states have call predecessors, (13265), 3440 states have return successors, (21823), 13503 states have call predecessors, (21823), 13194 states have call successors, (21823) [2023-12-25 05:20:14,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61033 states to 61033 states and 102122 transitions. [2023-12-25 05:20:14,741 INFO L78 Accepts]: Start accepts. Automaton has 61033 states and 102122 transitions. Word has length 163 [2023-12-25 05:20:14,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:20:14,742 INFO L495 AbstractCegarLoop]: Abstraction has 61033 states and 102122 transitions. [2023-12-25 05:20:14,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 9.7) internal successors, (97), 9 states have internal predecessors, (97), 6 states have call successors, (21), 4 states have call predecessors, (21), 6 states have return successors, (20), 8 states have call predecessors, (20), 6 states have call successors, (20) [2023-12-25 05:20:14,742 INFO L276 IsEmpty]: Start isEmpty. Operand 61033 states and 102122 transitions. [2023-12-25 05:20:14,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-25 05:20:14,744 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:20:14,745 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:20:14,751 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 05:20:14,945 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 05:20:14,945 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:20:14,945 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:20:14,946 INFO L85 PathProgramCache]: Analyzing trace with hash -581220316, now seen corresponding path program 1 times [2023-12-25 05:20:14,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:20:14,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1358097333] [2023-12-25 05:20:14,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:20:14,946 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 05:20:14,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:20:14,947 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 05:20:14,948 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 05:20:15,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:20:15,268 INFO L262 TraceCheckSpWp]: Trace formula consists of 903 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:20:15,271 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:20:15,369 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-12-25 05:20:15,369 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:20:15,369 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:20:15,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1358097333] [2023-12-25 05:20:15,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1358097333] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:20:15,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:20:15,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:20:15,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468983477] [2023-12-25 05:20:15,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:20:15,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:20:15,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:20:15,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:20:15,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:20:15,371 INFO L87 Difference]: Start difference. First operand 61033 states and 102122 transitions. Second operand has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 6 states have call successors, (21), 5 states have call predecessors, (21), 5 states have return successors, (19), 6 states have call predecessors, (19), 6 states have call successors, (19) [2023-12-25 05:20:30,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:20:30,796 INFO L93 Difference]: Finished difference Result 191669 states and 357891 transitions. [2023-12-25 05:20:30,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:20:30,797 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 6 states have call successors, (21), 5 states have call predecessors, (21), 5 states have return successors, (19), 6 states have call predecessors, (19), 6 states have call successors, (19) Word has length 171 [2023-12-25 05:20:30,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:20:31,847 INFO L225 Difference]: With dead ends: 191669 [2023-12-25 05:20:31,848 INFO L226 Difference]: Without dead ends: 130644 [2023-12-25 05:20:32,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:20:32,580 INFO L413 NwaCegarLoop]: 581 mSDtfsCounter, 3564 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 3067 mSolverCounterSat, 854 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3692 SdHoareTripleChecker+Valid, 1079 SdHoareTripleChecker+Invalid, 3921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 854 IncrementalHoareTripleChecker+Valid, 3067 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:20:32,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3692 Valid, 1079 Invalid, 3921 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [854 Valid, 3067 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-25 05:20:32,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130644 states. [2023-12-25 05:20:43,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130644 to 125782. [2023-12-25 05:20:43,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125782 states, 89372 states have (on average 1.4978516761401781) internal successors, (133866), 93106 states have internal predecessors, (133866), 29376 states have call successors, (29376), 4374 states have call predecessors, (29376), 7033 states have return successors, (55498), 30393 states have call predecessors, (55498), 29251 states have call successors, (55498) [2023-12-25 05:20:44,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125782 states to 125782 states and 218740 transitions. [2023-12-25 05:20:45,005 INFO L78 Accepts]: Start accepts. Automaton has 125782 states and 218740 transitions. Word has length 171 [2023-12-25 05:20:45,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:20:45,006 INFO L495 AbstractCegarLoop]: Abstraction has 125782 states and 218740 transitions. [2023-12-25 05:20:45,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 6 states have call successors, (21), 5 states have call predecessors, (21), 5 states have return successors, (19), 6 states have call predecessors, (19), 6 states have call successors, (19) [2023-12-25 05:20:45,006 INFO L276 IsEmpty]: Start isEmpty. Operand 125782 states and 218740 transitions. [2023-12-25 05:20:45,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-25 05:20:45,009 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:20:45,009 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:20:45,021 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 (30)] Ended with exit code 0 [2023-12-25 05:20:45,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 05:20:45,219 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:20:45,219 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:20:45,219 INFO L85 PathProgramCache]: Analyzing trace with hash 2090711874, now seen corresponding path program 1 times [2023-12-25 05:20:45,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:20:45,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1605312149] [2023-12-25 05:20:45,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:20:45,220 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 05:20:45,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:20:45,221 INFO L229 MonitoredProcess]: Starting monitored process 31 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 05:20:45,226 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 (31)] Waiting until timeout for monitored process [2023-12-25 05:20:45,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:20:45,537 INFO L262 TraceCheckSpWp]: Trace formula consists of 904 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:20:45,540 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:20:45,658 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-12-25 05:20:45,658 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:20:45,658 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:20:45,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1605312149] [2023-12-25 05:20:45,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1605312149] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:20:45,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:20:45,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:20:45,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959164654] [2023-12-25 05:20:45,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:20:45,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:20:45,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:20:45,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:20:45,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:20:45,659 INFO L87 Difference]: Start difference. First operand 125782 states and 218740 transitions. Second operand has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 6 states have call successors, (21), 5 states have call predecessors, (21), 5 states have return successors, (19), 6 states have call predecessors, (19), 6 states have call successors, (19)