/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_spec2_product25.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 05:31:06,460 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 05:31:06,530 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 05:31:06,534 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 05:31:06,535 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 05:31:06,557 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 05:31:06,557 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 05:31:06,557 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 05:31:06,558 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 05:31:06,561 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 05:31:06,561 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 05:31:06,562 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 05:31:06,562 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 05:31:06,563 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 05:31:06,563 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 05:31:06,564 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 05:31:06,564 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 05:31:06,564 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 05:31:06,565 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 05:31:06,565 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 05:31:06,565 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 05:31:06,565 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 05:31:06,566 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 05:31:06,566 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 05:31:06,566 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 05:31:06,566 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 05:31:06,566 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 05:31:06,566 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 05:31:06,567 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 05:31:06,567 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 05:31:06,568 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 05:31:06,568 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 05:31:06,568 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 05:31:06,568 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 05:31:06,568 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:31:06,568 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 05:31:06,568 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 05:31:06,568 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 05:31:06,569 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 05:31:06,569 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 05:31:06,569 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 05:31:06,569 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 05:31:06,569 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 05:31:06,569 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 05:31:06,570 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 05:31:06,570 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 05:31:06,570 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 05:31:06,786 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 05:31:06,807 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 05:31:06,809 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 05:31:06,810 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 05:31:06,810 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 05:31:06,811 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec2_product25.cil.c [2023-12-25 05:31:07,863 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 05:31:08,112 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 05:31:08,113 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product25.cil.c [2023-12-25 05:31:08,126 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e143151a/de53b5a006a24b34b4a2fe19414b7ac8/FLAG26163d743 [2023-12-25 05:31:08,136 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e143151a/de53b5a006a24b34b4a2fe19414b7ac8 [2023-12-25 05:31:08,138 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 05:31:08,138 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 05:31:08,139 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 05:31:08,139 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 05:31:08,145 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 05:31:08,146 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:31:08" (1/1) ... [2023-12-25 05:31:08,146 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bc8d15b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:31:08, skipping insertion in model container [2023-12-25 05:31:08,146 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:31:08" (1/1) ... [2023-12-25 05:31:08,194 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:31:08,572 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_spec2_product25.cil.c[66231,66244] [2023-12-25 05:31:08,590 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:31:08,608 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-25 05:31:08,627 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:31:08,705 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_spec2_product25.cil.c[66231,66244] [2023-12-25 05:31:08,708 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:31:08,713 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 05:31:08,724 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [48] [2023-12-25 05:31:08,725 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [86] [2023-12-25 05:31:08,725 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [100] [2023-12-25 05:31:08,726 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [286] [2023-12-25 05:31:08,726 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [1765] [2023-12-25 05:31:08,726 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [1884] [2023-12-25 05:31:08,726 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [2546] [2023-12-25 05:31:08,726 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2638] [2023-12-25 05:31:08,726 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3004] [2023-12-25 05:31:08,726 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [3013] [2023-12-25 05:31:08,780 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_spec2_product25.cil.c[66231,66244] [2023-12-25 05:31:08,785 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:31:08,858 INFO L206 MainTranslator]: Completed translation [2023-12-25 05:31:08,859 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:31:08 WrapperNode [2023-12-25 05:31:08,859 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 05:31:08,860 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 05:31:08,861 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 05:31:08,861 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 05:31:08,866 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:31:08" (1/1) ... [2023-12-25 05:31:08,902 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:31:08" (1/1) ... [2023-12-25 05:31:08,934 INFO L138 Inliner]: procedures = 93, calls = 334, calls flagged for inlining = 27, calls inlined = 24, statements flattened = 802 [2023-12-25 05:31:08,935 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 05:31:08,935 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 05:31:08,935 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 05:31:08,935 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 05:31:08,943 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:31:08" (1/1) ... [2023-12-25 05:31:08,943 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:31:08" (1/1) ... [2023-12-25 05:31:08,948 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:31:08" (1/1) ... [2023-12-25 05:31:08,968 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2023-12-25 05:31:08,968 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:31:08" (1/1) ... [2023-12-25 05:31:08,969 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:31:08" (1/1) ... [2023-12-25 05:31:08,993 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:31:08" (1/1) ... [2023-12-25 05:31:09,001 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:31:08" (1/1) ... [2023-12-25 05:31:09,005 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:31:08" (1/1) ... [2023-12-25 05:31:09,008 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:31:08" (1/1) ... [2023-12-25 05:31:09,015 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 05:31:09,016 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 05:31:09,016 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 05:31:09,016 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 05:31:09,017 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:31:08" (1/1) ... [2023-12-25 05:31:09,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:31:09,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 05:31:09,074 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 05:31:09,091 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 05:31:09,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 05:31:09,115 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-12-25 05:31:09,115 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-12-25 05:31:09,115 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2023-12-25 05:31:09,115 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2023-12-25 05:31:09,115 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-12-25 05:31:09,115 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-12-25 05:31:09,115 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-12-25 05:31:09,116 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-12-25 05:31:09,116 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-12-25 05:31:09,116 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-12-25 05:31:09,118 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-25 05:31:09,118 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-25 05:31:09,118 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-25 05:31:09,118 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-25 05:31:09,119 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2023-12-25 05:31:09,119 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2023-12-25 05:31:09,119 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-12-25 05:31:09,119 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-12-25 05:31:09,119 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-12-25 05:31:09,119 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-12-25 05:31:09,119 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-12-25 05:31:09,119 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-12-25 05:31:09,119 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-12-25 05:31:09,119 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-12-25 05:31:09,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 05:31:09,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-25 05:31:09,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-25 05:31:09,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-25 05:31:09,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-12-25 05:31:09,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2023-12-25 05:31:09,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2023-12-25 05:31:09,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2023-12-25 05:31:09,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2023-12-25 05:31:09,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2023-12-25 05:31:09,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2023-12-25 05:31:09,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2023-12-25 05:31:09,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12 [2023-12-25 05:31:09,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#13 [2023-12-25 05:31:09,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#14 [2023-12-25 05:31:09,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#15 [2023-12-25 05:31:09,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#16 [2023-12-25 05:31:09,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#17 [2023-12-25 05:31:09,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#18 [2023-12-25 05:31:09,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#19 [2023-12-25 05:31:09,121 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-12-25 05:31:09,121 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-12-25 05:31:09,121 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-12-25 05:31:09,121 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-12-25 05:31:09,121 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-12-25 05:31:09,121 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-12-25 05:31:09,121 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-12-25 05:31:09,121 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-12-25 05:31:09,121 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-12-25 05:31:09,121 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-12-25 05:31:09,121 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-12-25 05:31:09,121 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-12-25 05:31:09,122 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-12-25 05:31:09,122 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-12-25 05:31:09,122 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-12-25 05:31:09,123 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-12-25 05:31:09,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 05:31:09,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 05:31:09,123 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-12-25 05:31:09,123 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-12-25 05:31:09,304 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 05:31:09,305 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 05:31:10,240 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 05:31:10,363 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 05:31:10,364 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-25 05:31:10,365 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:31:10 BoogieIcfgContainer [2023-12-25 05:31:10,365 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 05:31:10,366 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 05:31:10,366 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 05:31:10,369 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 05:31:10,369 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 05:31:08" (1/3) ... [2023-12-25 05:31:10,369 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57d18e5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:31:10, skipping insertion in model container [2023-12-25 05:31:10,370 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:31:08" (2/3) ... [2023-12-25 05:31:10,370 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57d18e5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:31:10, skipping insertion in model container [2023-12-25 05:31:10,370 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:31:10" (3/3) ... [2023-12-25 05:31:10,371 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product25.cil.c [2023-12-25 05:31:10,384 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 05:31:10,385 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 05:31:10,442 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 05:31:10,447 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;@4a4c3f04, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 05:31:10,447 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 05:31:10,463 INFO L276 IsEmpty]: Start isEmpty. Operand has 520 states, 409 states have (on average 1.7481662591687042) internal successors, (715), 430 states have internal predecessors, (715), 88 states have call successors, (88), 21 states have call predecessors, (88), 21 states have return successors, (88), 82 states have call predecessors, (88), 88 states have call successors, (88) [2023-12-25 05:31:10,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-25 05:31:10,483 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:10,484 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:31:10,484 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:10,488 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:10,488 INFO L85 PathProgramCache]: Analyzing trace with hash 964666655, now seen corresponding path program 1 times [2023-12-25 05:31:10,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:10,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2010221639] [2023-12-25 05:31:10,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:10,498 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 05:31:10,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:10,503 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 05:31:10,509 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 05:31:10,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:10,843 INFO L262 TraceCheckSpWp]: Trace formula consists of 682 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-25 05:31:10,849 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:10,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:31:10,870 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:10,871 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:10,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2010221639] [2023-12-25 05:31:10,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2010221639] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:10,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:10,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 05:31:10,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890670592] [2023-12-25 05:31:10,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:10,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-25 05:31:10,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:10,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-25 05:31:10,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 05:31:10,900 INFO L87 Difference]: Start difference. First operand has 520 states, 409 states have (on average 1.7481662591687042) internal successors, (715), 430 states have internal predecessors, (715), 88 states have call successors, (88), 21 states have call predecessors, (88), 21 states have return successors, (88), 82 states have call predecessors, (88), 88 states have call successors, (88) Second operand has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2023-12-25 05:31:11,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:11,020 INFO L93 Difference]: Finished difference Result 538 states and 918 transitions. [2023-12-25 05:31:11,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-25 05:31:11,024 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) Word has length 65 [2023-12-25 05:31:11,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:11,043 INFO L225 Difference]: With dead ends: 538 [2023-12-25 05:31:11,043 INFO L226 Difference]: Without dead ends: 516 [2023-12-25 05:31:11,047 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 05:31:11,050 INFO L413 NwaCegarLoop]: 868 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 868 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:11,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 868 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:31:11,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2023-12-25 05:31:11,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 516. [2023-12-25 05:31:11,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 407 states have (on average 1.7395577395577395) internal successors, (708), 426 states have internal predecessors, (708), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-25 05:31:11,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 879 transitions. [2023-12-25 05:31:11,146 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 879 transitions. Word has length 65 [2023-12-25 05:31:11,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:11,149 INFO L495 AbstractCegarLoop]: Abstraction has 516 states and 879 transitions. [2023-12-25 05:31:11,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2023-12-25 05:31:11,149 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 879 transitions. [2023-12-25 05:31:11,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-25 05:31:11,156 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:11,159 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:31:11,177 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-25 05:31:11,370 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 05:31:11,371 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:11,371 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:11,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1996985628, now seen corresponding path program 1 times [2023-12-25 05:31:11,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:11,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [609932939] [2023-12-25 05:31:11,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:11,373 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 05:31:11,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:11,384 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 05:31:11,385 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 05:31:11,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:11,712 INFO L262 TraceCheckSpWp]: Trace formula consists of 683 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:31:11,716 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:11,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:31:11,750 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:11,750 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:11,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [609932939] [2023-12-25 05:31:11,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [609932939] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:11,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:11,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:31:11,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91565394] [2023-12-25 05:31:11,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:11,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:31:11,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:11,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:31:11,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:31:11,752 INFO L87 Difference]: Start difference. First operand 516 states and 879 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:31:11,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:11,888 INFO L93 Difference]: Finished difference Result 1020 states and 1740 transitions. [2023-12-25 05:31:11,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:31:11,889 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 66 [2023-12-25 05:31:11,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:11,893 INFO L225 Difference]: With dead ends: 1020 [2023-12-25 05:31:11,893 INFO L226 Difference]: Without dead ends: 516 [2023-12-25 05:31:11,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 63 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 05:31:11,900 INFO L413 NwaCegarLoop]: 853 mSDtfsCounter, 14 mSDsluCounter, 1701 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 2554 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:11,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 2554 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:31:11,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2023-12-25 05:31:11,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 516. [2023-12-25 05:31:11,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 407 states have (on average 1.7371007371007372) internal successors, (707), 426 states have internal predecessors, (707), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-25 05:31:11,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 878 transitions. [2023-12-25 05:31:11,922 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 878 transitions. Word has length 66 [2023-12-25 05:31:11,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:11,922 INFO L495 AbstractCegarLoop]: Abstraction has 516 states and 878 transitions. [2023-12-25 05:31:11,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:31:11,923 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 878 transitions. [2023-12-25 05:31:11,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-25 05:31:11,925 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:11,925 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:31:11,936 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 05:31:12,132 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 05:31:12,132 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:12,133 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:12,133 INFO L85 PathProgramCache]: Analyzing trace with hash 272204788, now seen corresponding path program 1 times [2023-12-25 05:31:12,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:12,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1329182518] [2023-12-25 05:31:12,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:12,134 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 05:31:12,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:12,137 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 05:31:12,138 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 05:31:12,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:12,385 INFO L262 TraceCheckSpWp]: Trace formula consists of 684 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:31:12,388 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:12,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:31:12,405 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:12,405 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:12,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1329182518] [2023-12-25 05:31:12,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1329182518] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:12,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:12,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:31:12,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708541632] [2023-12-25 05:31:12,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:12,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:31:12,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:12,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:31:12,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:31:12,407 INFO L87 Difference]: Start difference. First operand 516 states and 878 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:31:12,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:12,497 INFO L93 Difference]: Finished difference Result 1020 states and 1739 transitions. [2023-12-25 05:31:12,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:31:12,498 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 67 [2023-12-25 05:31:12,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:12,501 INFO L225 Difference]: With dead ends: 1020 [2023-12-25 05:31:12,501 INFO L226 Difference]: Without dead ends: 516 [2023-12-25 05:31:12,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 64 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 05:31:12,504 INFO L413 NwaCegarLoop]: 853 mSDtfsCounter, 12 mSDsluCounter, 1701 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2554 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:12,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2554 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:31:12,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2023-12-25 05:31:12,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 516. [2023-12-25 05:31:12,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 407 states have (on average 1.7346437346437347) internal successors, (706), 426 states have internal predecessors, (706), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-25 05:31:12,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 877 transitions. [2023-12-25 05:31:12,519 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 877 transitions. Word has length 67 [2023-12-25 05:31:12,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:12,519 INFO L495 AbstractCegarLoop]: Abstraction has 516 states and 877 transitions. [2023-12-25 05:31:12,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:31:12,520 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 877 transitions. [2023-12-25 05:31:12,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-25 05:31:12,521 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:12,522 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:31:12,530 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 05:31:12,728 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 05:31:12,729 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:12,729 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:12,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1252745832, now seen corresponding path program 1 times [2023-12-25 05:31:12,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:12,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [394384952] [2023-12-25 05:31:12,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:12,730 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 05:31:12,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:12,731 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 05:31:12,732 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 (5)] Waiting until timeout for monitored process [2023-12-25 05:31:12,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:12,977 INFO L262 TraceCheckSpWp]: Trace formula consists of 685 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:31:12,980 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:12,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:31:12,998 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:12,998 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:12,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [394384952] [2023-12-25 05:31:12,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [394384952] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:12,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:12,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:31:12,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655072042] [2023-12-25 05:31:12,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:12,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:31:12,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:13,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:31:13,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:31:13,000 INFO L87 Difference]: Start difference. First operand 516 states and 877 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:31:13,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:13,085 INFO L93 Difference]: Finished difference Result 1020 states and 1738 transitions. [2023-12-25 05:31:13,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:31:13,086 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 68 [2023-12-25 05:31:13,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:13,089 INFO L225 Difference]: With dead ends: 1020 [2023-12-25 05:31:13,090 INFO L226 Difference]: Without dead ends: 516 [2023-12-25 05:31:13,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:31:13,095 INFO L413 NwaCegarLoop]: 853 mSDtfsCounter, 10 mSDsluCounter, 1701 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2554 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:13,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2554 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:31:13,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2023-12-25 05:31:13,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 516. [2023-12-25 05:31:13,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 407 states have (on average 1.7321867321867321) internal successors, (705), 426 states have internal predecessors, (705), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-25 05:31:13,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 876 transitions. [2023-12-25 05:31:13,115 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 876 transitions. Word has length 68 [2023-12-25 05:31:13,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:13,116 INFO L495 AbstractCegarLoop]: Abstraction has 516 states and 876 transitions. [2023-12-25 05:31:13,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:31:13,116 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 876 transitions. [2023-12-25 05:31:13,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-25 05:31:13,118 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:13,118 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:31:13,128 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 05:31:13,328 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 05:31:13,329 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:13,329 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:13,330 INFO L85 PathProgramCache]: Analyzing trace with hash -877926928, now seen corresponding path program 1 times [2023-12-25 05:31:13,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:13,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [320388167] [2023-12-25 05:31:13,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:13,346 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 05:31:13,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:13,347 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 05:31:13,351 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 05:31:13,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:13,607 INFO L262 TraceCheckSpWp]: Trace formula consists of 686 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:31:13,609 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:13,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:31:13,626 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:13,626 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:13,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [320388167] [2023-12-25 05:31:13,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [320388167] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:13,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:13,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:31:13,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11064190] [2023-12-25 05:31:13,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:13,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:31:13,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:13,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:31:13,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:31:13,628 INFO L87 Difference]: Start difference. First operand 516 states and 876 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, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:31:13,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:13,710 INFO L93 Difference]: Finished difference Result 1020 states and 1737 transitions. [2023-12-25 05:31:13,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:31:13,711 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, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 69 [2023-12-25 05:31:13,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:13,713 INFO L225 Difference]: With dead ends: 1020 [2023-12-25 05:31:13,713 INFO L226 Difference]: Without dead ends: 516 [2023-12-25 05:31:13,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 66 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 05:31:13,715 INFO L413 NwaCegarLoop]: 853 mSDtfsCounter, 8 mSDsluCounter, 1701 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2554 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:13,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2554 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:31:13,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2023-12-25 05:31:13,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 516. [2023-12-25 05:31:13,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 407 states have (on average 1.7297297297297298) internal successors, (704), 426 states have internal predecessors, (704), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-25 05:31:13,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 875 transitions. [2023-12-25 05:31:13,728 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 875 transitions. Word has length 69 [2023-12-25 05:31:13,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:13,728 INFO L495 AbstractCegarLoop]: Abstraction has 516 states and 875 transitions. [2023-12-25 05:31:13,728 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, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:31:13,728 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 875 transitions. [2023-12-25 05:31:13,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-25 05:31:13,730 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:13,730 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:31:13,742 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 05:31:13,939 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 05:31:13,939 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:13,939 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:13,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1739794924, now seen corresponding path program 1 times [2023-12-25 05:31:13,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:13,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [60568391] [2023-12-25 05:31:13,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:13,940 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 05:31:13,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:13,941 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 05:31:13,942 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 05:31:14,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:14,176 INFO L262 TraceCheckSpWp]: Trace formula consists of 687 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:31:14,178 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:14,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:31:14,200 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:14,200 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:14,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [60568391] [2023-12-25 05:31:14,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [60568391] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:14,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:14,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:31:14,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353786173] [2023-12-25 05:31:14,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:14,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:31:14,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:14,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:31:14,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:31:14,202 INFO L87 Difference]: Start difference. First operand 516 states and 875 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:31:14,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:14,278 INFO L93 Difference]: Finished difference Result 1020 states and 1736 transitions. [2023-12-25 05:31:14,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:31:14,279 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 70 [2023-12-25 05:31:14,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:14,282 INFO L225 Difference]: With dead ends: 1020 [2023-12-25 05:31:14,282 INFO L226 Difference]: Without dead ends: 516 [2023-12-25 05:31:14,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 67 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 05:31:14,284 INFO L413 NwaCegarLoop]: 853 mSDtfsCounter, 6 mSDsluCounter, 1701 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2554 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:14,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2554 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:31:14,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2023-12-25 05:31:14,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 516. [2023-12-25 05:31:14,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 407 states have (on average 1.7272727272727273) internal successors, (703), 426 states have internal predecessors, (703), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-25 05:31:14,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 874 transitions. [2023-12-25 05:31:14,296 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 874 transitions. Word has length 70 [2023-12-25 05:31:14,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:14,296 INFO L495 AbstractCegarLoop]: Abstraction has 516 states and 874 transitions. [2023-12-25 05:31:14,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:31:14,297 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 874 transitions. [2023-12-25 05:31:14,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-25 05:31:14,298 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:14,298 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:31:14,309 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 05:31:14,504 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 05:31:14,505 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:14,505 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:14,505 INFO L85 PathProgramCache]: Analyzing trace with hash 2111628107, now seen corresponding path program 1 times [2023-12-25 05:31:14,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:14,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [22037329] [2023-12-25 05:31:14,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:14,506 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 05:31:14,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:14,507 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 05:31:14,509 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 05:31:14,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:14,738 INFO L262 TraceCheckSpWp]: Trace formula consists of 688 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:31:14,741 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:14,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:31:14,763 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:14,763 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:14,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [22037329] [2023-12-25 05:31:14,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [22037329] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:14,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:14,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:31:14,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125939923] [2023-12-25 05:31:14,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:14,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:31:14,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:14,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:31:14,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:31:14,764 INFO L87 Difference]: Start difference. First operand 516 states and 874 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:31:14,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:14,840 INFO L93 Difference]: Finished difference Result 1020 states and 1735 transitions. [2023-12-25 05:31:14,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:31:14,841 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 71 [2023-12-25 05:31:14,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:14,843 INFO L225 Difference]: With dead ends: 1020 [2023-12-25 05:31:14,843 INFO L226 Difference]: Without dead ends: 516 [2023-12-25 05:31:14,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 68 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 05:31:14,846 INFO L413 NwaCegarLoop]: 853 mSDtfsCounter, 4 mSDsluCounter, 1701 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2554 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:14,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2554 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:31:14,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2023-12-25 05:31:14,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 516. [2023-12-25 05:31:14,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 407 states have (on average 1.7248157248157248) internal successors, (702), 426 states have internal predecessors, (702), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-25 05:31:14,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 873 transitions. [2023-12-25 05:31:14,858 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 873 transitions. Word has length 71 [2023-12-25 05:31:14,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:14,859 INFO L495 AbstractCegarLoop]: Abstraction has 516 states and 873 transitions. [2023-12-25 05:31:14,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:31:14,859 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 873 transitions. [2023-12-25 05:31:14,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-25 05:31:14,861 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:14,861 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:31:14,868 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 05:31:15,068 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 05:31:15,068 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:15,069 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:15,069 INFO L85 PathProgramCache]: Analyzing trace with hash 2010716140, now seen corresponding path program 1 times [2023-12-25 05:31:15,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:15,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [119187221] [2023-12-25 05:31:15,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:15,070 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 05:31:15,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:15,071 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 05:31:15,072 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 05:31:15,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:15,323 INFO L262 TraceCheckSpWp]: Trace formula consists of 688 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:31:15,326 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:15,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:31:15,364 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:15,364 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:15,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [119187221] [2023-12-25 05:31:15,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [119187221] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:15,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:15,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:31:15,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463392425] [2023-12-25 05:31:15,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:15,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:31:15,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:15,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:31:15,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:31:15,365 INFO L87 Difference]: Start difference. First operand 516 states and 873 transitions. Second operand has 7 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:31:15,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:15,492 INFO L93 Difference]: Finished difference Result 980 states and 1659 transitions. [2023-12-25 05:31:15,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:31:15,492 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 71 [2023-12-25 05:31:15,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:15,495 INFO L225 Difference]: With dead ends: 980 [2023-12-25 05:31:15,495 INFO L226 Difference]: Without dead ends: 510 [2023-12-25 05:31:15,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 65 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 05:31:15,497 INFO L413 NwaCegarLoop]: 847 mSDtfsCounter, 115 mSDsluCounter, 4144 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 4991 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:15,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 4991 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:31:15,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2023-12-25 05:31:15,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 510. [2023-12-25 05:31:15,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 510 states, 401 states have (on average 1.7182044887780548) internal successors, (689), 420 states have internal predecessors, (689), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-25 05:31:15,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 860 transitions. [2023-12-25 05:31:15,508 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 860 transitions. Word has length 71 [2023-12-25 05:31:15,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:15,508 INFO L495 AbstractCegarLoop]: Abstraction has 510 states and 860 transitions. [2023-12-25 05:31:15,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:31:15,508 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 860 transitions. [2023-12-25 05:31:15,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-25 05:31:15,510 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:15,510 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:31:15,519 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 05:31:15,716 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 05:31:15,717 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:15,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:15,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1458115754, now seen corresponding path program 1 times [2023-12-25 05:31:15,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:15,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1544589284] [2023-12-25 05:31:15,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:15,718 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 05:31:15,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:15,719 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 05:31:15,723 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 05:31:15,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:15,953 INFO L262 TraceCheckSpWp]: Trace formula consists of 689 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:31:15,955 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:15,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:31:15,985 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:15,985 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:15,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1544589284] [2023-12-25 05:31:15,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1544589284] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:15,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:15,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:31:15,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638309416] [2023-12-25 05:31:15,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:15,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:31:15,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:15,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:31:15,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:31:15,987 INFO L87 Difference]: Start difference. First operand 510 states and 860 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:31:16,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:16,108 INFO L93 Difference]: Finished difference Result 974 states and 1646 transitions. [2023-12-25 05:31:16,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:31:16,108 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 72 [2023-12-25 05:31:16,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:16,111 INFO L225 Difference]: With dead ends: 974 [2023-12-25 05:31:16,111 INFO L226 Difference]: Without dead ends: 510 [2023-12-25 05:31:16,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 69 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 05:31:16,113 INFO L413 NwaCegarLoop]: 798 mSDtfsCounter, 88 mSDsluCounter, 1572 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 2370 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:16,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 2370 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:31:16,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2023-12-25 05:31:16,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 510. [2023-12-25 05:31:16,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 510 states, 401 states have (on average 1.7082294264339153) internal successors, (685), 420 states have internal predecessors, (685), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-25 05:31:16,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 856 transitions. [2023-12-25 05:31:16,124 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 856 transitions. Word has length 72 [2023-12-25 05:31:16,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:16,124 INFO L495 AbstractCegarLoop]: Abstraction has 510 states and 856 transitions. [2023-12-25 05:31:16,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:31:16,125 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 856 transitions. [2023-12-25 05:31:16,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-25 05:31:16,126 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:16,126 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:31:16,135 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-25 05:31:16,333 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 05:31:16,333 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:16,333 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:16,333 INFO L85 PathProgramCache]: Analyzing trace with hash -461002225, now seen corresponding path program 1 times [2023-12-25 05:31:16,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:16,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1694809247] [2023-12-25 05:31:16,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:16,334 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 05:31:16,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:16,335 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 05:31:16,352 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 05:31:16,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:16,556 INFO L262 TraceCheckSpWp]: Trace formula consists of 690 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:31:16,558 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:16,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:31:16,582 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:16,582 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:16,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1694809247] [2023-12-25 05:31:16,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1694809247] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:16,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:16,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:31:16,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620310802] [2023-12-25 05:31:16,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:16,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:31:16,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:16,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:31:16,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:31:16,584 INFO L87 Difference]: Start difference. First operand 510 states and 856 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:31:16,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:16,697 INFO L93 Difference]: Finished difference Result 974 states and 1642 transitions. [2023-12-25 05:31:16,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:31:16,698 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 73 [2023-12-25 05:31:16,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:16,701 INFO L225 Difference]: With dead ends: 974 [2023-12-25 05:31:16,701 INFO L226 Difference]: Without dead ends: 510 [2023-12-25 05:31:16,703 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 70 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 05:31:16,703 INFO L413 NwaCegarLoop]: 798 mSDtfsCounter, 83 mSDsluCounter, 1572 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 2370 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:16,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 2370 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:31:16,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2023-12-25 05:31:16,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 510. [2023-12-25 05:31:16,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 510 states, 401 states have (on average 1.6982543640897756) internal successors, (681), 420 states have internal predecessors, (681), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-25 05:31:16,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 852 transitions. [2023-12-25 05:31:16,715 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 852 transitions. Word has length 73 [2023-12-25 05:31:16,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:16,715 INFO L495 AbstractCegarLoop]: Abstraction has 510 states and 852 transitions. [2023-12-25 05:31:16,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:31:16,715 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 852 transitions. [2023-12-25 05:31:16,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-25 05:31:16,717 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:16,717 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:31:16,726 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 05:31:16,923 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 05:31:16,924 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:16,924 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:16,924 INFO L85 PathProgramCache]: Analyzing trace with hash -652985861, now seen corresponding path program 1 times [2023-12-25 05:31:16,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:16,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [489745437] [2023-12-25 05:31:16,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:16,925 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 05:31:16,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:16,926 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 05:31:16,927 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-25 05:31:17,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:17,180 INFO L262 TraceCheckSpWp]: Trace formula consists of 691 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:31:17,182 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:17,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:31:17,204 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:17,204 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:17,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [489745437] [2023-12-25 05:31:17,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [489745437] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:17,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:17,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:31:17,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778485139] [2023-12-25 05:31:17,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:17,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:31:17,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:17,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:31:17,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:31:17,206 INFO L87 Difference]: Start difference. First operand 510 states and 852 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:31:17,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:17,335 INFO L93 Difference]: Finished difference Result 974 states and 1638 transitions. [2023-12-25 05:31:17,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:31:17,335 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 74 [2023-12-25 05:31:17,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:17,340 INFO L225 Difference]: With dead ends: 974 [2023-12-25 05:31:17,340 INFO L226 Difference]: Without dead ends: 510 [2023-12-25 05:31:17,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 71 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 05:31:17,342 INFO L413 NwaCegarLoop]: 798 mSDtfsCounter, 78 mSDsluCounter, 1572 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 2370 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:17,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 2370 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:31:17,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2023-12-25 05:31:17,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 510. [2023-12-25 05:31:17,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 510 states, 401 states have (on average 1.688279301745636) internal successors, (677), 420 states have internal predecessors, (677), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-25 05:31:17,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 848 transitions. [2023-12-25 05:31:17,358 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 848 transitions. Word has length 74 [2023-12-25 05:31:17,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:17,358 INFO L495 AbstractCegarLoop]: Abstraction has 510 states and 848 transitions. [2023-12-25 05:31:17,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:31:17,358 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 848 transitions. [2023-12-25 05:31:17,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-25 05:31:17,359 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:17,359 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:31:17,366 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 05:31:17,565 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 05:31:17,566 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:17,566 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:17,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1548290437, now seen corresponding path program 1 times [2023-12-25 05:31:17,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:17,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [496282756] [2023-12-25 05:31:17,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:17,566 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 05:31:17,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:17,568 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 05:31:17,568 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 05:31:17,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:17,791 INFO L262 TraceCheckSpWp]: Trace formula consists of 690 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:31:17,793 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:17,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:31:17,832 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:17,832 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:17,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [496282756] [2023-12-25 05:31:17,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [496282756] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:17,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:17,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:31:17,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641070711] [2023-12-25 05:31:17,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:17,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:31:17,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:17,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:31:17,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:31:17,833 INFO L87 Difference]: Start difference. First operand 510 states and 848 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, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:31:17,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:17,948 INFO L93 Difference]: Finished difference Result 974 states and 1634 transitions. [2023-12-25 05:31:17,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:31:17,948 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, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 74 [2023-12-25 05:31:17,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:17,951 INFO L225 Difference]: With dead ends: 974 [2023-12-25 05:31:17,951 INFO L226 Difference]: Without dead ends: 489 [2023-12-25 05:31:17,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:31:17,955 INFO L413 NwaCegarLoop]: 823 mSDtfsCounter, 108 mSDsluCounter, 4033 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 4856 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:17,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 4856 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:31:17,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2023-12-25 05:31:17,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 489. [2023-12-25 05:31:17,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 380 states have (on average 1.6921052631578948) internal successors, (643), 399 states have internal predecessors, (643), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-25 05:31:17,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 814 transitions. [2023-12-25 05:31:17,967 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 814 transitions. Word has length 74 [2023-12-25 05:31:17,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:17,967 INFO L495 AbstractCegarLoop]: Abstraction has 489 states and 814 transitions. [2023-12-25 05:31:17,967 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, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:31:17,968 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 814 transitions. [2023-12-25 05:31:17,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-25 05:31:17,969 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:17,969 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:31:17,990 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 05:31:18,174 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 05:31:18,175 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:18,175 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:18,176 INFO L85 PathProgramCache]: Analyzing trace with hash 947724052, now seen corresponding path program 1 times [2023-12-25 05:31:18,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:18,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1722720020] [2023-12-25 05:31:18,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:18,176 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 05:31:18,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:18,177 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 05:31:18,178 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 05:31:18,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:18,399 INFO L262 TraceCheckSpWp]: Trace formula consists of 692 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:31:18,402 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:18,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:31:18,421 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:18,421 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:18,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1722720020] [2023-12-25 05:31:18,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1722720020] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:18,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:18,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:31:18,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444170510] [2023-12-25 05:31:18,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:18,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:31:18,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:18,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:31:18,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:31:18,422 INFO L87 Difference]: Start difference. First operand 489 states and 814 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, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:31:18,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:18,491 INFO L93 Difference]: Finished difference Result 953 states and 1600 transitions. [2023-12-25 05:31:18,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:31:18,492 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, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 75 [2023-12-25 05:31:18,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:18,495 INFO L225 Difference]: With dead ends: 953 [2023-12-25 05:31:18,495 INFO L226 Difference]: Without dead ends: 489 [2023-12-25 05:31:18,496 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:31:18,497 INFO L413 NwaCegarLoop]: 791 mSDtfsCounter, 39 mSDsluCounter, 1565 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 2356 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:18,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 2356 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:31:18,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2023-12-25 05:31:18,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 489. [2023-12-25 05:31:18,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 380 states have (on average 1.6894736842105262) internal successors, (642), 399 states have internal predecessors, (642), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-25 05:31:18,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 813 transitions. [2023-12-25 05:31:18,507 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 813 transitions. Word has length 75 [2023-12-25 05:31:18,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:18,507 INFO L495 AbstractCegarLoop]: Abstraction has 489 states and 813 transitions. [2023-12-25 05:31:18,507 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, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:31:18,508 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 813 transitions. [2023-12-25 05:31:18,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-25 05:31:18,509 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:18,509 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:31:18,517 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 05:31:18,715 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 05:31:18,715 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:18,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:18,716 INFO L85 PathProgramCache]: Analyzing trace with hash -2007608160, now seen corresponding path program 1 times [2023-12-25 05:31:18,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:18,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1683757592] [2023-12-25 05:31:18,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:18,717 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 05:31:18,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:18,718 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 05:31:18,752 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-25 05:31:18,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:18,928 INFO L262 TraceCheckSpWp]: Trace formula consists of 693 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:31:18,930 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:18,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:31:18,949 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:18,949 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:18,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1683757592] [2023-12-25 05:31:18,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1683757592] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:18,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:18,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:31:18,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666680308] [2023-12-25 05:31:18,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:18,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:31:18,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:18,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:31:18,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:31:18,951 INFO L87 Difference]: Start difference. First operand 489 states and 813 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:31:19,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:19,039 INFO L93 Difference]: Finished difference Result 953 states and 1599 transitions. [2023-12-25 05:31:19,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:31:19,040 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 76 [2023-12-25 05:31:19,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:19,042 INFO L225 Difference]: With dead ends: 953 [2023-12-25 05:31:19,042 INFO L226 Difference]: Without dead ends: 489 [2023-12-25 05:31:19,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 73 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 05:31:19,045 INFO L413 NwaCegarLoop]: 791 mSDtfsCounter, 37 mSDsluCounter, 1565 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 2356 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:19,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 2356 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:31:19,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2023-12-25 05:31:19,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 489. [2023-12-25 05:31:19,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 380 states have (on average 1.686842105263158) internal successors, (641), 399 states have internal predecessors, (641), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-25 05:31:19,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 812 transitions. [2023-12-25 05:31:19,061 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 812 transitions. Word has length 76 [2023-12-25 05:31:19,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:19,061 INFO L495 AbstractCegarLoop]: Abstraction has 489 states and 812 transitions. [2023-12-25 05:31:19,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:31:19,061 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 812 transitions. [2023-12-25 05:31:19,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-25 05:31:19,064 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:19,064 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:31:19,082 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 05:31:19,269 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 05:31:19,270 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:19,270 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:19,270 INFO L85 PathProgramCache]: Analyzing trace with hash 272542491, now seen corresponding path program 1 times [2023-12-25 05:31:19,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:19,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1774020909] [2023-12-25 05:31:19,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:19,271 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 05:31:19,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:19,282 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 05:31:19,300 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 05:31:19,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:19,522 INFO L262 TraceCheckSpWp]: Trace formula consists of 693 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:31:19,524 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:19,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:31:19,559 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:19,559 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:19,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1774020909] [2023-12-25 05:31:19,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1774020909] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:19,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:19,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:31:19,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916693268] [2023-12-25 05:31:19,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:19,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:31:19,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:19,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:31:19,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:31:19,561 INFO L87 Difference]: Start difference. First operand 489 states and 812 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:31:19,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:19,631 INFO L93 Difference]: Finished difference Result 953 states and 1598 transitions. [2023-12-25 05:31:19,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:31:19,631 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 77 [2023-12-25 05:31:19,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:19,634 INFO L225 Difference]: With dead ends: 953 [2023-12-25 05:31:19,634 INFO L226 Difference]: Without dead ends: 489 [2023-12-25 05:31:19,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 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 05:31:19,638 INFO L413 NwaCegarLoop]: 791 mSDtfsCounter, 35 mSDsluCounter, 1565 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 2356 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:19,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 2356 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:31:19,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2023-12-25 05:31:19,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 489. [2023-12-25 05:31:19,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 380 states have (on average 1.6842105263157894) internal successors, (640), 399 states have internal predecessors, (640), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-25 05:31:19,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 811 transitions. [2023-12-25 05:31:19,649 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 811 transitions. Word has length 77 [2023-12-25 05:31:19,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:19,650 INFO L495 AbstractCegarLoop]: Abstraction has 489 states and 811 transitions. [2023-12-25 05:31:19,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:31:19,650 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 811 transitions. [2023-12-25 05:31:19,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-25 05:31:19,653 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:19,653 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:31:19,663 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-12-25 05:31:19,859 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 05:31:19,859 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:19,859 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:19,860 INFO L85 PathProgramCache]: Analyzing trace with hash -171358183, now seen corresponding path program 1 times [2023-12-25 05:31:19,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:19,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [568416641] [2023-12-25 05:31:19,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:19,860 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 05:31:19,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:19,861 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 05:31:19,863 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 05:31:20,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:20,093 INFO L262 TraceCheckSpWp]: Trace formula consists of 694 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:31:20,098 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:20,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:31:20,168 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:20,168 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:20,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [568416641] [2023-12-25 05:31:20,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [568416641] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:20,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:20,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:31:20,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147267919] [2023-12-25 05:31:20,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:20,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:31:20,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:20,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:31:20,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:31:20,169 INFO L87 Difference]: Start difference. First operand 489 states and 811 transitions. Second operand has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:31:20,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:20,314 INFO L93 Difference]: Finished difference Result 947 states and 1586 transitions. [2023-12-25 05:31:20,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:31:20,315 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 77 [2023-12-25 05:31:20,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:20,317 INFO L225 Difference]: With dead ends: 947 [2023-12-25 05:31:20,318 INFO L226 Difference]: Without dead ends: 489 [2023-12-25 05:31:20,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 70 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 05:31:20,320 INFO L413 NwaCegarLoop]: 783 mSDtfsCounter, 24 mSDsluCounter, 4681 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 5464 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:20,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 5464 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:31:20,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2023-12-25 05:31:20,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 489. [2023-12-25 05:31:20,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 380 states have (on average 1.681578947368421) internal successors, (639), 399 states have internal predecessors, (639), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-25 05:31:20,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 810 transitions. [2023-12-25 05:31:20,330 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 810 transitions. Word has length 77 [2023-12-25 05:31:20,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:20,330 INFO L495 AbstractCegarLoop]: Abstraction has 489 states and 810 transitions. [2023-12-25 05:31:20,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:31:20,330 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 810 transitions. [2023-12-25 05:31:20,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-25 05:31:20,332 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:20,332 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:31:20,343 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 05:31:20,538 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 05:31:20,538 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:20,539 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:20,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1429332971, now seen corresponding path program 1 times [2023-12-25 05:31:20,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:20,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [736328103] [2023-12-25 05:31:20,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:20,540 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 05:31:20,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:20,541 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 05:31:20,541 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 05:31:20,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:20,764 INFO L262 TraceCheckSpWp]: Trace formula consists of 695 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-25 05:31:20,767 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:20,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:31:20,943 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:20,943 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:20,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [736328103] [2023-12-25 05:31:20,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [736328103] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:20,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:20,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 05:31:20,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828563785] [2023-12-25 05:31:20,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:20,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 05:31:20,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:20,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 05:31:20,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-12-25 05:31:20,945 INFO L87 Difference]: Start difference. First operand 489 states and 810 transitions. Second operand has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (9), 4 states have call predecessors, (9), 5 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:31:22,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:22,601 INFO L93 Difference]: Finished difference Result 945 states and 1600 transitions. [2023-12-25 05:31:22,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:31:22,602 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (9), 4 states have call predecessors, (9), 5 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) Word has length 78 [2023-12-25 05:31:22,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:22,606 INFO L225 Difference]: With dead ends: 945 [2023-12-25 05:31:22,606 INFO L226 Difference]: Without dead ends: 494 [2023-12-25 05:31:22,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2023-12-25 05:31:22,608 INFO L413 NwaCegarLoop]: 356 mSDtfsCounter, 1270 mSDsluCounter, 1094 mSDsCounter, 0 mSdLazyCounter, 2575 mSolverCounterSat, 362 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1270 SdHoareTripleChecker+Valid, 1450 SdHoareTripleChecker+Invalid, 2937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 362 IncrementalHoareTripleChecker+Valid, 2575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:22,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1270 Valid, 1450 Invalid, 2937 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [362 Valid, 2575 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-25 05:31:22,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2023-12-25 05:31:22,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 493. [2023-12-25 05:31:22,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 383 states have (on average 1.6762402088772845) internal successors, (642), 402 states have internal predecessors, (642), 88 states have call successors, (88), 21 states have call predecessors, (88), 21 states have return successors, (99), 82 states have call predecessors, (99), 83 states have call successors, (99) [2023-12-25 05:31:22,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 829 transitions. [2023-12-25 05:31:22,622 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 829 transitions. Word has length 78 [2023-12-25 05:31:22,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:22,622 INFO L495 AbstractCegarLoop]: Abstraction has 493 states and 829 transitions. [2023-12-25 05:31:22,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (9), 4 states have call predecessors, (9), 5 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:31:22,623 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 829 transitions. [2023-12-25 05:31:22,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-25 05:31:22,624 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:22,624 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:31:22,632 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 05:31:22,830 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 05:31:22,831 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:22,831 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:22,831 INFO L85 PathProgramCache]: Analyzing trace with hash 787652330, now seen corresponding path program 1 times [2023-12-25 05:31:22,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:22,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1935911554] [2023-12-25 05:31:22,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:22,832 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 05:31:22,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:22,833 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 05:31:22,834 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 05:31:23,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:23,056 INFO L262 TraceCheckSpWp]: Trace formula consists of 696 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:31:23,059 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:23,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:31:23,145 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:23,145 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:23,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1935911554] [2023-12-25 05:31:23,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1935911554] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:23,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:23,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:31:23,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111273978] [2023-12-25 05:31:23,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:23,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:31:23,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:23,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:31:23,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:31:23,148 INFO L87 Difference]: Start difference. First operand 493 states and 829 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:31:26,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:26,616 INFO L93 Difference]: Finished difference Result 1779 states and 3081 transitions. [2023-12-25 05:31:26,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-25 05:31:26,618 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 79 [2023-12-25 05:31:26,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:26,627 INFO L225 Difference]: With dead ends: 1779 [2023-12-25 05:31:26,627 INFO L226 Difference]: Without dead ends: 1324 [2023-12-25 05:31:26,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2023-12-25 05:31:26,632 INFO L413 NwaCegarLoop]: 570 mSDtfsCounter, 2253 mSDsluCounter, 1860 mSDsCounter, 0 mSdLazyCounter, 4670 mSolverCounterSat, 567 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2321 SdHoareTripleChecker+Valid, 2430 SdHoareTripleChecker+Invalid, 5237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 567 IncrementalHoareTripleChecker+Valid, 4670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:26,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2321 Valid, 2430 Invalid, 5237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [567 Valid, 4670 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-12-25 05:31:26,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1324 states. [2023-12-25 05:31:26,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1324 to 1270. [2023-12-25 05:31:26,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1270 states, 986 states have (on average 1.6855983772819472) internal successors, (1662), 1034 states have internal predecessors, (1662), 229 states have call successors, (229), 54 states have call predecessors, (229), 54 states have return successors, (244), 218 states have call predecessors, (244), 224 states have call successors, (244) [2023-12-25 05:31:26,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1270 states to 1270 states and 2135 transitions. [2023-12-25 05:31:26,711 INFO L78 Accepts]: Start accepts. Automaton has 1270 states and 2135 transitions. Word has length 79 [2023-12-25 05:31:26,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:26,711 INFO L495 AbstractCegarLoop]: Abstraction has 1270 states and 2135 transitions. [2023-12-25 05:31:26,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:31:26,711 INFO L276 IsEmpty]: Start isEmpty. Operand 1270 states and 2135 transitions. [2023-12-25 05:31:26,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-25 05:31:26,713 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:26,713 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:31:26,721 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 05:31:26,918 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 05:31:26,919 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:26,919 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:26,919 INFO L85 PathProgramCache]: Analyzing trace with hash -755295656, now seen corresponding path program 1 times [2023-12-25 05:31:26,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:26,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [929685235] [2023-12-25 05:31:26,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:26,920 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 05:31:26,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:26,921 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 05:31:26,960 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 05:31:27,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:27,161 INFO L262 TraceCheckSpWp]: Trace formula consists of 702 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:31:27,164 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:27,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:31:27,313 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:27,313 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:27,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [929685235] [2023-12-25 05:31:27,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [929685235] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:27,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:27,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:31:27,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5562268] [2023-12-25 05:31:27,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:27,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:31:27,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:27,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:31:27,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:31:27,314 INFO L87 Difference]: Start difference. First operand 1270 states and 2135 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 4 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:31:31,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:31,396 INFO L93 Difference]: Finished difference Result 5175 states and 9014 transitions. [2023-12-25 05:31:31,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-25 05:31:31,398 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 4 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) Word has length 81 [2023-12-25 05:31:31,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:31,439 INFO L225 Difference]: With dead ends: 5175 [2023-12-25 05:31:31,439 INFO L226 Difference]: Without dead ends: 3943 [2023-12-25 05:31:31,448 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2023-12-25 05:31:31,448 INFO L413 NwaCegarLoop]: 755 mSDtfsCounter, 3805 mSDsluCounter, 1551 mSDsCounter, 0 mSdLazyCounter, 4816 mSolverCounterSat, 1158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3932 SdHoareTripleChecker+Valid, 2306 SdHoareTripleChecker+Invalid, 5974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1158 IncrementalHoareTripleChecker+Valid, 4816 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:31,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3932 Valid, 2306 Invalid, 5974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1158 Valid, 4816 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-12-25 05:31:31,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3943 states. [2023-12-25 05:31:31,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3943 to 3031. [2023-12-25 05:31:31,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3031 states, 2242 states have (on average 1.6694915254237288) internal successors, (3743), 2388 states have internal predecessors, (3743), 674 states have call successors, (674), 103 states have call predecessors, (674), 114 states have return successors, (801), 661 states have call predecessors, (801), 669 states have call successors, (801) [2023-12-25 05:31:31,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3031 states to 3031 states and 5218 transitions. [2023-12-25 05:31:31,660 INFO L78 Accepts]: Start accepts. Automaton has 3031 states and 5218 transitions. Word has length 81 [2023-12-25 05:31:31,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:31,660 INFO L495 AbstractCegarLoop]: Abstraction has 3031 states and 5218 transitions. [2023-12-25 05:31:31,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 4 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:31:31,660 INFO L276 IsEmpty]: Start isEmpty. Operand 3031 states and 5218 transitions. [2023-12-25 05:31:31,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-25 05:31:31,662 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:31,662 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:31:31,672 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 05:31:31,869 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 05:31:31,869 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:31,870 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:31,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1149662442, now seen corresponding path program 1 times [2023-12-25 05:31:31,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:31,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [638895673] [2023-12-25 05:31:31,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:31,871 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 05:31:31,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:31,872 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 05:31:31,876 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 05:31:32,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:32,099 INFO L262 TraceCheckSpWp]: Trace formula consists of 702 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:31:32,101 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:32,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:31:32,184 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:32,184 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:32,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [638895673] [2023-12-25 05:31:32,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [638895673] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:32,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:32,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:31:32,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030225866] [2023-12-25 05:31:32,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:32,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:31:32,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:32,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:31:32,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:31:32,185 INFO L87 Difference]: Start difference. First operand 3031 states and 5218 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:31:35,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:35,022 INFO L93 Difference]: Finished difference Result 8129 states and 14086 transitions. [2023-12-25 05:31:35,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-25 05:31:35,023 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) Word has length 81 [2023-12-25 05:31:35,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:35,063 INFO L225 Difference]: With dead ends: 8129 [2023-12-25 05:31:35,063 INFO L226 Difference]: Without dead ends: 5949 [2023-12-25 05:31:35,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2023-12-25 05:31:35,077 INFO L413 NwaCegarLoop]: 326 mSDtfsCounter, 2557 mSDsluCounter, 1252 mSDsCounter, 0 mSdLazyCounter, 3256 mSolverCounterSat, 516 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2630 SdHoareTripleChecker+Valid, 1578 SdHoareTripleChecker+Invalid, 3772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 516 IncrementalHoareTripleChecker+Valid, 3256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:35,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2630 Valid, 1578 Invalid, 3772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [516 Valid, 3256 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-25 05:31:35,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5949 states. [2023-12-25 05:31:35,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5949 to 5596. [2023-12-25 05:31:35,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5596 states, 4165 states have (on average 1.6691476590636254) internal successors, (6952), 4432 states have internal predecessors, (6952), 1202 states have call successors, (1202), 187 states have call predecessors, (1202), 228 states have return successors, (1504), 1180 states have call predecessors, (1504), 1197 states have call successors, (1504) [2023-12-25 05:31:35,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5596 states to 5596 states and 9658 transitions. [2023-12-25 05:31:35,520 INFO L78 Accepts]: Start accepts. Automaton has 5596 states and 9658 transitions. Word has length 81 [2023-12-25 05:31:35,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:35,520 INFO L495 AbstractCegarLoop]: Abstraction has 5596 states and 9658 transitions. [2023-12-25 05:31:35,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:31:35,521 INFO L276 IsEmpty]: Start isEmpty. Operand 5596 states and 9658 transitions. [2023-12-25 05:31:35,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-25 05:31:35,525 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:35,525 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:31:35,539 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 05:31:35,731 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 05:31:35,731 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:35,732 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:35,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1349816174, now seen corresponding path program 1 times [2023-12-25 05:31:35,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:35,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [418963213] [2023-12-25 05:31:35,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:35,732 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 05:31:35,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:35,733 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 05:31:35,734 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 05:31:35,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:35,972 INFO L262 TraceCheckSpWp]: Trace formula consists of 710 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-25 05:31:35,975 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:36,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:31:36,136 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:36,136 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:36,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [418963213] [2023-12-25 05:31:36,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [418963213] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:36,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:36,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 05:31:36,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727817854] [2023-12-25 05:31:36,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:36,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 05:31:36,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:36,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 05:31:36,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-25 05:31:36,138 INFO L87 Difference]: Start difference. First operand 5596 states and 9658 transitions. Second operand has 9 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 5 states have call successors, (10), 4 states have call predecessors, (10), 5 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2023-12-25 05:31:39,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:39,716 INFO L93 Difference]: Finished difference Result 11316 states and 19518 transitions. [2023-12-25 05:31:39,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-25 05:31:39,718 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 5 states have call successors, (10), 4 states have call predecessors, (10), 5 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) Word has length 85 [2023-12-25 05:31:39,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:39,757 INFO L225 Difference]: With dead ends: 11316 [2023-12-25 05:31:39,757 INFO L226 Difference]: Without dead ends: 6571 [2023-12-25 05:31:39,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380 [2023-12-25 05:31:39,821 INFO L413 NwaCegarLoop]: 417 mSDtfsCounter, 1942 mSDsluCounter, 2013 mSDsCounter, 0 mSdLazyCounter, 4889 mSolverCounterSat, 443 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2013 SdHoareTripleChecker+Valid, 2430 SdHoareTripleChecker+Invalid, 5332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 443 IncrementalHoareTripleChecker+Valid, 4889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:39,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2013 Valid, 2430 Invalid, 5332 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [443 Valid, 4889 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-12-25 05:31:39,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6571 states. [2023-12-25 05:31:40,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6571 to 6086. [2023-12-25 05:31:40,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6086 states, 4519 states have (on average 1.6454967913255145) internal successors, (7436), 4816 states have internal predecessors, (7436), 1286 states have call successors, (1286), 227 states have call predecessors, (1286), 280 states have return successors, (1666), 1246 states have call predecessors, (1666), 1281 states have call successors, (1666) [2023-12-25 05:31:40,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6086 states to 6086 states and 10388 transitions. [2023-12-25 05:31:40,225 INFO L78 Accepts]: Start accepts. Automaton has 6086 states and 10388 transitions. Word has length 85 [2023-12-25 05:31:40,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:40,225 INFO L495 AbstractCegarLoop]: Abstraction has 6086 states and 10388 transitions. [2023-12-25 05:31:40,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 5 states have call successors, (10), 4 states have call predecessors, (10), 5 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2023-12-25 05:31:40,225 INFO L276 IsEmpty]: Start isEmpty. Operand 6086 states and 10388 transitions. [2023-12-25 05:31:40,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-25 05:31:40,227 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:40,227 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:31:40,234 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 05:31:40,433 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 05:31:40,434 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:40,434 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:40,434 INFO L85 PathProgramCache]: Analyzing trace with hash -1634080149, now seen corresponding path program 1 times [2023-12-25 05:31:40,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:40,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [101128839] [2023-12-25 05:31:40,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:40,435 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 05:31:40,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:40,436 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 05:31:40,437 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 05:31:40,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:40,664 INFO L262 TraceCheckSpWp]: Trace formula consists of 717 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:31:40,666 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:40,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:31:40,700 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:40,701 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:40,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [101128839] [2023-12-25 05:31:40,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [101128839] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:40,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:40,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:31:40,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739672990] [2023-12-25 05:31:40,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:40,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:31:40,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:40,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:31:40,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:31:40,702 INFO L87 Difference]: Start difference. First operand 6086 states and 10388 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-25 05:31:41,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:41,138 INFO L93 Difference]: Finished difference Result 11865 states and 20378 transitions. [2023-12-25 05:31:41,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:31:41,138 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 92 [2023-12-25 05:31:41,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:41,169 INFO L225 Difference]: With dead ends: 11865 [2023-12-25 05:31:41,169 INFO L226 Difference]: Without dead ends: 6086 [2023-12-25 05:31:41,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 89 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 05:31:41,186 INFO L413 NwaCegarLoop]: 829 mSDtfsCounter, 234 mSDsluCounter, 1404 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 2233 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:41,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 2233 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:31:41,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6086 states. [2023-12-25 05:31:41,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6086 to 6086. [2023-12-25 05:31:41,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6086 states, 4519 states have (on average 1.6215976986058862) internal successors, (7328), 4816 states have internal predecessors, (7328), 1286 states have call successors, (1286), 227 states have call predecessors, (1286), 280 states have return successors, (1666), 1246 states have call predecessors, (1666), 1281 states have call successors, (1666) [2023-12-25 05:31:41,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6086 states to 6086 states and 10280 transitions. [2023-12-25 05:31:41,595 INFO L78 Accepts]: Start accepts. Automaton has 6086 states and 10280 transitions. Word has length 92 [2023-12-25 05:31:41,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:41,595 INFO L495 AbstractCegarLoop]: Abstraction has 6086 states and 10280 transitions. [2023-12-25 05:31:41,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-25 05:31:41,595 INFO L276 IsEmpty]: Start isEmpty. Operand 6086 states and 10280 transitions. [2023-12-25 05:31:41,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-25 05:31:41,598 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:41,598 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:31:41,605 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 05:31:41,804 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 05:31:41,805 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:41,805 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:41,805 INFO L85 PathProgramCache]: Analyzing trace with hash -797151753, now seen corresponding path program 1 times [2023-12-25 05:31:41,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:41,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [641046971] [2023-12-25 05:31:41,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:41,806 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 05:31:41,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:41,807 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 05:31:41,808 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 05:31:42,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:42,040 INFO L262 TraceCheckSpWp]: Trace formula consists of 726 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:31:42,042 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:42,147 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-25 05:31:42,147 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:42,147 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:42,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [641046971] [2023-12-25 05:31:42,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [641046971] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:42,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:42,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:31:42,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137219593] [2023-12-25 05:31:42,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:42,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:31:42,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:42,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:31:42,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:31:42,149 INFO L87 Difference]: Start difference. First operand 6086 states and 10280 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 4 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-25 05:31:44,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:44,706 INFO L93 Difference]: Finished difference Result 11813 states and 19984 transitions. [2023-12-25 05:31:44,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-25 05:31:44,707 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 4 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) Word has length 97 [2023-12-25 05:31:44,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:44,741 INFO L225 Difference]: With dead ends: 11813 [2023-12-25 05:31:44,742 INFO L226 Difference]: Without dead ends: 6691 [2023-12-25 05:31:44,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2023-12-25 05:31:44,759 INFO L413 NwaCegarLoop]: 344 mSDtfsCounter, 1997 mSDsluCounter, 1163 mSDsCounter, 0 mSdLazyCounter, 3051 mSolverCounterSat, 450 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2073 SdHoareTripleChecker+Valid, 1507 SdHoareTripleChecker+Invalid, 3501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 450 IncrementalHoareTripleChecker+Valid, 3051 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:44,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2073 Valid, 1507 Invalid, 3501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [450 Valid, 3051 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-25 05:31:44,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6691 states. [2023-12-25 05:31:45,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6691 to 6372. [2023-12-25 05:31:45,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6372 states, 4731 states have (on average 1.606425702811245) internal successors, (7600), 5050 states have internal predecessors, (7600), 1312 states have call successors, (1312), 255 states have call predecessors, (1312), 328 states have return successors, (1766), 1270 states have call predecessors, (1766), 1307 states have call successors, (1766) [2023-12-25 05:31:45,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6372 states to 6372 states and 10678 transitions. [2023-12-25 05:31:45,204 INFO L78 Accepts]: Start accepts. Automaton has 6372 states and 10678 transitions. Word has length 97 [2023-12-25 05:31:45,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:45,204 INFO L495 AbstractCegarLoop]: Abstraction has 6372 states and 10678 transitions. [2023-12-25 05:31:45,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 4 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-25 05:31:45,204 INFO L276 IsEmpty]: Start isEmpty. Operand 6372 states and 10678 transitions. [2023-12-25 05:31:45,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-25 05:31:45,206 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:45,207 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:31:45,218 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 05:31:45,414 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 05:31:45,414 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:45,414 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:45,415 INFO L85 PathProgramCache]: Analyzing trace with hash -447182463, now seen corresponding path program 1 times [2023-12-25 05:31:45,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:45,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [97507891] [2023-12-25 05:31:45,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:45,415 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 05:31:45,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:45,416 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 05:31:45,440 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 05:31:45,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:45,653 INFO L262 TraceCheckSpWp]: Trace formula consists of 734 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-25 05:31:45,655 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:45,781 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-25 05:31:45,781 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:45,782 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:45,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [97507891] [2023-12-25 05:31:45,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [97507891] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:45,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:45,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:31:45,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143070409] [2023-12-25 05:31:45,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:45,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:31:45,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:45,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:31:45,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:31:45,783 INFO L87 Difference]: Start difference. First operand 6372 states and 10678 transitions. Second operand has 8 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 4 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (11), 6 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-25 05:31:48,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:48,868 INFO L93 Difference]: Finished difference Result 12207 states and 20462 transitions. [2023-12-25 05:31:48,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-25 05:31:48,870 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 4 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (11), 6 states have call predecessors, (11), 3 states have call successors, (11) Word has length 101 [2023-12-25 05:31:48,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:48,905 INFO L225 Difference]: With dead ends: 12207 [2023-12-25 05:31:48,905 INFO L226 Difference]: Without dead ends: 6798 [2023-12-25 05:31:48,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2023-12-25 05:31:48,923 INFO L413 NwaCegarLoop]: 395 mSDtfsCounter, 1605 mSDsluCounter, 1591 mSDsCounter, 0 mSdLazyCounter, 3965 mSolverCounterSat, 347 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1676 SdHoareTripleChecker+Valid, 1986 SdHoareTripleChecker+Invalid, 4312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 347 IncrementalHoareTripleChecker+Valid, 3965 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:48,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1676 Valid, 1986 Invalid, 4312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [347 Valid, 3965 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-25 05:31:48,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6798 states. [2023-12-25 05:31:49,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6798 to 6313. [2023-12-25 05:31:49,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6313 states, 4688 states have (on average 1.6043088737201365) internal successors, (7521), 5000 states have internal predecessors, (7521), 1302 states have call successors, (1302), 255 states have call predecessors, (1302), 322 states have return successors, (1717), 1261 states have call predecessors, (1717), 1297 states have call successors, (1717) [2023-12-25 05:31:49,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6313 states to 6313 states and 10540 transitions. [2023-12-25 05:31:49,335 INFO L78 Accepts]: Start accepts. Automaton has 6313 states and 10540 transitions. Word has length 101 [2023-12-25 05:31:49,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:49,335 INFO L495 AbstractCegarLoop]: Abstraction has 6313 states and 10540 transitions. [2023-12-25 05:31:49,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 4 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (11), 6 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-25 05:31:49,335 INFO L276 IsEmpty]: Start isEmpty. Operand 6313 states and 10540 transitions. [2023-12-25 05:31:49,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-25 05:31:49,337 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:49,337 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:31:49,343 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 (25)] Ended with exit code 0 [2023-12-25 05:31:49,543 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 05:31:49,543 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:49,544 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:49,544 INFO L85 PathProgramCache]: Analyzing trace with hash -24480637, now seen corresponding path program 1 times [2023-12-25 05:31:49,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:49,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [42239391] [2023-12-25 05:31:49,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:49,545 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:31:49,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:49,546 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 05:31:49,568 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 05:31:49,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:49,784 INFO L262 TraceCheckSpWp]: Trace formula consists of 733 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-25 05:31:49,786 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:49,934 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-25 05:31:49,934 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:49,934 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:49,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [42239391] [2023-12-25 05:31:49,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [42239391] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:49,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:49,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:31:49,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956944973] [2023-12-25 05:31:49,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:49,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:31:49,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:49,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:31:49,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:31:49,936 INFO L87 Difference]: Start difference. First operand 6313 states and 10540 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (11), 6 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-25 05:31:52,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:52,620 INFO L93 Difference]: Finished difference Result 13942 states and 23454 transitions. [2023-12-25 05:31:52,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-25 05:31:52,622 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (11), 6 states have call predecessors, (11), 3 states have call successors, (11) Word has length 101 [2023-12-25 05:31:52,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:52,668 INFO L225 Difference]: With dead ends: 13942 [2023-12-25 05:31:52,668 INFO L226 Difference]: Without dead ends: 8584 [2023-12-25 05:31:52,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:31:52,685 INFO L413 NwaCegarLoop]: 375 mSDtfsCounter, 1695 mSDsluCounter, 917 mSDsCounter, 0 mSdLazyCounter, 2754 mSolverCounterSat, 383 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1773 SdHoareTripleChecker+Valid, 1292 SdHoareTripleChecker+Invalid, 3137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 383 IncrementalHoareTripleChecker+Valid, 2754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:52,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1773 Valid, 1292 Invalid, 3137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [383 Valid, 2754 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-25 05:31:52,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8584 states. [2023-12-25 05:31:53,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8584 to 8309. [2023-12-25 05:31:53,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8309 states, 6140 states have (on average 1.6053745928338763) internal successors, (9857), 6560 states have internal predecessors, (9857), 1762 states have call successors, (1762), 341 states have call predecessors, (1762), 406 states have return successors, (2325), 1689 states have call predecessors, (2325), 1757 states have call successors, (2325) [2023-12-25 05:31:53,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8309 states to 8309 states and 13944 transitions. [2023-12-25 05:31:53,199 INFO L78 Accepts]: Start accepts. Automaton has 8309 states and 13944 transitions. Word has length 101 [2023-12-25 05:31:53,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:53,199 INFO L495 AbstractCegarLoop]: Abstraction has 8309 states and 13944 transitions. [2023-12-25 05:31:53,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (11), 6 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-25 05:31:53,199 INFO L276 IsEmpty]: Start isEmpty. Operand 8309 states and 13944 transitions. [2023-12-25 05:31:53,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-25 05:31:53,202 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:53,203 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:31:53,214 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2023-12-25 05:31:53,409 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 05:31:53,409 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:53,409 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:53,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1779130980, now seen corresponding path program 1 times [2023-12-25 05:31:53,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:53,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [731134102] [2023-12-25 05:31:53,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:53,410 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 05:31:53,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:53,413 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 05:31:53,440 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 05:31:53,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:53,675 INFO L262 TraceCheckSpWp]: Trace formula consists of 734 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:31:53,677 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:53,776 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-25 05:31:53,776 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:53,776 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:53,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [731134102] [2023-12-25 05:31:53,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [731134102] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:53,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:53,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:31:53,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12172860] [2023-12-25 05:31:53,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:53,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:31:53,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:53,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:31:53,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:31:53,780 INFO L87 Difference]: Start difference. First operand 8309 states and 13944 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-25 05:31:54,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:54,674 INFO L93 Difference]: Finished difference Result 8400 states and 14099 transitions. [2023-12-25 05:31:54,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:31:54,675 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 102 [2023-12-25 05:31:54,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:54,719 INFO L225 Difference]: With dead ends: 8400 [2023-12-25 05:31:54,719 INFO L226 Difference]: Without dead ends: 8385 [2023-12-25 05:31:54,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:31:54,728 INFO L413 NwaCegarLoop]: 778 mSDtfsCounter, 776 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 784 SdHoareTripleChecker+Valid, 1389 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:54,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [784 Valid, 1389 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 05:31:54,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8385 states. [2023-12-25 05:31:55,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8385 to 8315. [2023-12-25 05:31:55,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8315 states, 6146 states have (on average 1.6047835990888382) internal successors, (9863), 6566 states have internal predecessors, (9863), 1762 states have call successors, (1762), 341 states have call predecessors, (1762), 406 states have return successors, (2325), 1689 states have call predecessors, (2325), 1757 states have call successors, (2325) [2023-12-25 05:31:55,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8315 states to 8315 states and 13950 transitions. [2023-12-25 05:31:55,274 INFO L78 Accepts]: Start accepts. Automaton has 8315 states and 13950 transitions. Word has length 102 [2023-12-25 05:31:55,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:55,274 INFO L495 AbstractCegarLoop]: Abstraction has 8315 states and 13950 transitions. [2023-12-25 05:31:55,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-25 05:31:55,274 INFO L276 IsEmpty]: Start isEmpty. Operand 8315 states and 13950 transitions. [2023-12-25 05:31:55,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-25 05:31:55,277 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:55,277 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:31:55,283 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 05:31:55,483 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 05:31:55,483 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:55,484 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:55,484 INFO L85 PathProgramCache]: Analyzing trace with hash 128151750, now seen corresponding path program 1 times [2023-12-25 05:31:55,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:55,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [532268148] [2023-12-25 05:31:55,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:55,484 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 05:31:55,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:55,486 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 05:31:55,512 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 05:31:55,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:55,748 INFO L262 TraceCheckSpWp]: Trace formula consists of 742 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 05:31:55,751 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:55,767 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-25 05:31:55,767 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:55,767 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:55,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [532268148] [2023-12-25 05:31:55,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [532268148] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:55,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:55,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:31:55,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406592139] [2023-12-25 05:31:55,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:55,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:31:55,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:55,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:31:55,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:31:55,769 INFO L87 Difference]: Start difference. First operand 8315 states and 13950 transitions. Second operand has 5 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-25 05:31:56,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:56,244 INFO L93 Difference]: Finished difference Result 8336 states and 13977 transitions. [2023-12-25 05:31:56,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:31:56,245 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 1 states have call successors, (12) Word has length 107 [2023-12-25 05:31:56,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:56,278 INFO L225 Difference]: With dead ends: 8336 [2023-12-25 05:31:56,278 INFO L226 Difference]: Without dead ends: 8321 [2023-12-25 05:31:56,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:31:56,283 INFO L413 NwaCegarLoop]: 788 mSDtfsCounter, 34 mSDsluCounter, 2323 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 3111 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:56,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 3111 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:31:56,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8321 states. [2023-12-25 05:31:56,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8321 to 8315. [2023-12-25 05:31:56,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8315 states, 6146 states have (on average 1.603481939472828) internal successors, (9855), 6566 states have internal predecessors, (9855), 1762 states have call successors, (1762), 341 states have call predecessors, (1762), 406 states have return successors, (2325), 1689 states have call predecessors, (2325), 1757 states have call successors, (2325) [2023-12-25 05:31:56,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8315 states to 8315 states and 13942 transitions. [2023-12-25 05:31:56,828 INFO L78 Accepts]: Start accepts. Automaton has 8315 states and 13942 transitions. Word has length 107 [2023-12-25 05:31:56,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:56,830 INFO L495 AbstractCegarLoop]: Abstraction has 8315 states and 13942 transitions. [2023-12-25 05:31:56,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-25 05:31:56,830 INFO L276 IsEmpty]: Start isEmpty. Operand 8315 states and 13942 transitions. [2023-12-25 05:31:56,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-25 05:31:56,832 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:56,832 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:31:56,842 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2023-12-25 05:31:57,040 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 05:31:57,040 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:57,040 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:57,041 INFO L85 PathProgramCache]: Analyzing trace with hash 948875537, now seen corresponding path program 1 times [2023-12-25 05:31:57,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:57,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1189863753] [2023-12-25 05:31:57,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:57,041 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 05:31:57,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:57,042 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 05:31:57,043 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 05:31:57,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:57,272 INFO L262 TraceCheckSpWp]: Trace formula consists of 758 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-25 05:31:57,275 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:57,414 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-25 05:31:57,414 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:57,414 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:57,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1189863753] [2023-12-25 05:31:57,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1189863753] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:57,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:57,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:31:57,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919887538] [2023-12-25 05:31:57,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:57,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:31:57,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:57,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:31:57,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:31:57,416 INFO L87 Difference]: Start difference. First operand 8315 states and 13942 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 7 states have internal predecessors, (85), 4 states have call successors, (14), 3 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:31:59,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:59,371 INFO L93 Difference]: Finished difference Result 16615 states and 27933 transitions. [2023-12-25 05:31:59,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:31:59,372 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 7 states have internal predecessors, (85), 4 states have call successors, (14), 3 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) Word has length 116 [2023-12-25 05:31:59,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:59,404 INFO L225 Difference]: With dead ends: 16615 [2023-12-25 05:31:59,404 INFO L226 Difference]: Without dead ends: 8347 [2023-12-25 05:31:59,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-12-25 05:31:59,426 INFO L413 NwaCegarLoop]: 353 mSDtfsCounter, 1205 mSDsluCounter, 1080 mSDsCounter, 0 mSdLazyCounter, 2568 mSolverCounterSat, 325 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1205 SdHoareTripleChecker+Valid, 1433 SdHoareTripleChecker+Invalid, 2893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 325 IncrementalHoareTripleChecker+Valid, 2568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:59,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1205 Valid, 1433 Invalid, 2893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [325 Valid, 2568 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-25 05:31:59,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8347 states. [2023-12-25 05:31:59,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8347 to 8315. [2023-12-25 05:31:59,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8315 states, 6146 states have (on average 1.6021802798568174) internal successors, (9847), 6566 states have internal predecessors, (9847), 1762 states have call successors, (1762), 341 states have call predecessors, (1762), 406 states have return successors, (2325), 1689 states have call predecessors, (2325), 1757 states have call successors, (2325) [2023-12-25 05:31:59,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8315 states to 8315 states and 13934 transitions. [2023-12-25 05:31:59,929 INFO L78 Accepts]: Start accepts. Automaton has 8315 states and 13934 transitions. Word has length 116 [2023-12-25 05:31:59,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:59,929 INFO L495 AbstractCegarLoop]: Abstraction has 8315 states and 13934 transitions. [2023-12-25 05:31:59,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 7 states have internal predecessors, (85), 4 states have call successors, (14), 3 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:31:59,929 INFO L276 IsEmpty]: Start isEmpty. Operand 8315 states and 13934 transitions. [2023-12-25 05:31:59,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-25 05:31:59,931 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:59,932 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2023-12-25 05:31:59,938 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 05:32:00,136 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 05:32:00,136 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:32:00,137 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:32:00,137 INFO L85 PathProgramCache]: Analyzing trace with hash 20413106, now seen corresponding path program 1 times [2023-12-25 05:32:00,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:32:00,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1577718034] [2023-12-25 05:32:00,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:32:00,138 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 05:32:00,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:32:00,139 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 05:32:00,141 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 05:32:00,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:32:00,384 INFO L262 TraceCheckSpWp]: Trace formula consists of 771 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 05:32:00,387 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:32:00,400 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-25 05:32:00,400 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:32:00,400 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:32:00,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1577718034] [2023-12-25 05:32:00,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1577718034] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:32:00,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:32:00,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:32:00,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804820189] [2023-12-25 05:32:00,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:32:00,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:32:00,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:32:00,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:32:00,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:32:00,402 INFO L87 Difference]: Start difference. First operand 8315 states and 13934 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-25 05:32:00,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:32:00,873 INFO L93 Difference]: Finished difference Result 8452 states and 14151 transitions. [2023-12-25 05:32:00,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:32:00,874 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) Word has length 125 [2023-12-25 05:32:00,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:32:00,922 INFO L225 Difference]: With dead ends: 8452 [2023-12-25 05:32:00,922 INFO L226 Difference]: Without dead ends: 8437 [2023-12-25 05:32:00,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 123 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 05:32:00,933 INFO L413 NwaCegarLoop]: 822 mSDtfsCounter, 47 mSDsluCounter, 1589 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 2411 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:32:00,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 2411 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:32:00,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8437 states. [2023-12-25 05:32:01,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8437 to 8323. [2023-12-25 05:32:01,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8323 states, 6154 states have (on average 1.6007474813129672) internal successors, (9851), 6574 states have internal predecessors, (9851), 1762 states have call successors, (1762), 341 states have call predecessors, (1762), 406 states have return successors, (2325), 1689 states have call predecessors, (2325), 1757 states have call successors, (2325) [2023-12-25 05:32:01,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8323 states to 8323 states and 13938 transitions. [2023-12-25 05:32:01,441 INFO L78 Accepts]: Start accepts. Automaton has 8323 states and 13938 transitions. Word has length 125 [2023-12-25 05:32:01,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:32:01,441 INFO L495 AbstractCegarLoop]: Abstraction has 8323 states and 13938 transitions. [2023-12-25 05:32:01,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-25 05:32:01,441 INFO L276 IsEmpty]: Start isEmpty. Operand 8323 states and 13938 transitions. [2023-12-25 05:32:01,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-25 05:32:01,446 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:32:01,446 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:32:01,453 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 (30)] Forceful destruction successful, exit code 0 [2023-12-25 05:32:01,653 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 05:32:01,653 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:32:01,654 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:32:01,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1973995480, now seen corresponding path program 1 times [2023-12-25 05:32:01,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:32:01,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [446522575] [2023-12-25 05:32:01,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:32:01,654 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 05:32:01,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:32:01,655 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 05:32:01,656 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2023-12-25 05:32:01,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:32:01,901 INFO L262 TraceCheckSpWp]: Trace formula consists of 811 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-25 05:32:01,905 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:32:02,055 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 54 proven. 6 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-25 05:32:02,055 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:32:02,400 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 05:32:02,400 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:32:02,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [446522575] [2023-12-25 05:32:02,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [446522575] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:32:02,400 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:32:02,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 15 [2023-12-25 05:32:02,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650444815] [2023-12-25 05:32:02,401 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:32:02,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-25 05:32:02,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:32:02,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-25 05:32:02,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2023-12-25 05:32:02,402 INFO L87 Difference]: Start difference. First operand 8323 states and 13938 transitions. Second operand has 15 states, 15 states have (on average 10.0) internal successors, (150), 13 states have internal predecessors, (150), 8 states have call successors, (29), 5 states have call predecessors, (29), 10 states have return successors, (30), 10 states have call predecessors, (30), 7 states have call successors, (30) [2023-12-25 05:32:07,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:32:07,515 INFO L93 Difference]: Finished difference Result 27422 states and 46603 transitions. [2023-12-25 05:32:07,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-25 05:32:07,516 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 10.0) internal successors, (150), 13 states have internal predecessors, (150), 8 states have call successors, (29), 5 states have call predecessors, (29), 10 states have return successors, (30), 10 states have call predecessors, (30), 7 states have call successors, (30) Word has length 153 [2023-12-25 05:32:07,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:32:07,623 INFO L225 Difference]: With dead ends: 27422 [2023-12-25 05:32:07,623 INFO L226 Difference]: Without dead ends: 19146 [2023-12-25 05:32:07,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 293 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2023-12-25 05:32:07,656 INFO L413 NwaCegarLoop]: 752 mSDtfsCounter, 4376 mSDsluCounter, 2989 mSDsCounter, 0 mSdLazyCounter, 6079 mSolverCounterSat, 1248 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4490 SdHoareTripleChecker+Valid, 3741 SdHoareTripleChecker+Invalid, 7327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1248 IncrementalHoareTripleChecker+Valid, 6079 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:32:07,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4490 Valid, 3741 Invalid, 7327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1248 Valid, 6079 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-12-25 05:32:07,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19146 states. [2023-12-25 05:32:09,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19146 to 19043. [2023-12-25 05:32:09,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19043 states, 13685 states have (on average 1.593204238217026) internal successors, (21803), 14674 states have internal predecessors, (21803), 4494 states have call successors, (4494), 678 states have call predecessors, (4494), 863 states have return successors, (6154), 4394 states have call predecessors, (6154), 4489 states have call successors, (6154) [2023-12-25 05:32:09,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19043 states to 19043 states and 32451 transitions. [2023-12-25 05:32:09,207 INFO L78 Accepts]: Start accepts. Automaton has 19043 states and 32451 transitions. Word has length 153 [2023-12-25 05:32:09,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:32:09,207 INFO L495 AbstractCegarLoop]: Abstraction has 19043 states and 32451 transitions. [2023-12-25 05:32:09,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 10.0) internal successors, (150), 13 states have internal predecessors, (150), 8 states have call successors, (29), 5 states have call predecessors, (29), 10 states have return successors, (30), 10 states have call predecessors, (30), 7 states have call successors, (30) [2023-12-25 05:32:09,207 INFO L276 IsEmpty]: Start isEmpty. Operand 19043 states and 32451 transitions. [2023-12-25 05:32:09,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-25 05:32:09,217 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:32:09,217 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 5, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:32:09,226 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 (31)] Forceful destruction successful, exit code 0 [2023-12-25 05:32:09,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 05:32:09,418 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:32:09,418 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:32:09,418 INFO L85 PathProgramCache]: Analyzing trace with hash 609603883, now seen corresponding path program 1 times [2023-12-25 05:32:09,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:32:09,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1503331202] [2023-12-25 05:32:09,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:32:09,419 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 05:32:09,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:32:09,420 INFO L229 MonitoredProcess]: Starting monitored process 32 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 05:32:09,420 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 (32)] Waiting until timeout for monitored process [2023-12-25 05:32:09,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:32:09,671 INFO L262 TraceCheckSpWp]: Trace formula consists of 812 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:32:09,674 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:32:09,687 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-25 05:32:09,687 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:32:09,687 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:32:09,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1503331202] [2023-12-25 05:32:09,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1503331202] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:32:09,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:32:09,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:32:09,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974662988] [2023-12-25 05:32:09,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:32:09,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:32:09,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:32:09,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:32:09,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:32:09,689 INFO L87 Difference]: Start difference. First operand 19043 states and 32451 transitions. Second operand has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:32:11,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:32:11,276 INFO L93 Difference]: Finished difference Result 38185 states and 65338 transitions. [2023-12-25 05:32:11,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:32:11,277 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 154 [2023-12-25 05:32:11,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:32:11,375 INFO L225 Difference]: With dead ends: 38185 [2023-12-25 05:32:11,376 INFO L226 Difference]: Without dead ends: 19205 [2023-12-25 05:32:11,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 152 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 05:32:11,437 INFO L413 NwaCegarLoop]: 759 mSDtfsCounter, 18 mSDsluCounter, 1483 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 2242 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:32:11,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 2242 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:32:11,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19205 states. [2023-12-25 05:32:12,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19205 to 19203. [2023-12-25 05:32:12,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19203 states, 13821 states have (on average 1.5856305621879747) internal successors, (21915), 14794 states have internal predecessors, (21915), 4482 states have call successors, (4482), 738 states have call predecessors, (4482), 899 states have return successors, (6038), 4374 states have call predecessors, (6038), 4477 states have call successors, (6038) [2023-12-25 05:32:12,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19203 states to 19203 states and 32435 transitions. [2023-12-25 05:32:12,941 INFO L78 Accepts]: Start accepts. Automaton has 19203 states and 32435 transitions. Word has length 154 [2023-12-25 05:32:12,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:32:12,941 INFO L495 AbstractCegarLoop]: Abstraction has 19203 states and 32435 transitions. [2023-12-25 05:32:12,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:32:12,942 INFO L276 IsEmpty]: Start isEmpty. Operand 19203 states and 32435 transitions. [2023-12-25 05:32:12,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-25 05:32:12,952 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:32:12,952 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 5, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:32:12,961 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 (32)] Forceful destruction successful, exit code 0 [2023-12-25 05:32:13,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 05:32:13,160 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:32:13,160 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:32:13,160 INFO L85 PathProgramCache]: Analyzing trace with hash -160687924, now seen corresponding path program 1 times [2023-12-25 05:32:13,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:32:13,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1962299768] [2023-12-25 05:32:13,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:32:13,161 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 05:32:13,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:32:13,162 INFO L229 MonitoredProcess]: Starting monitored process 33 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 05:32:13,163 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 (33)] Waiting until timeout for monitored process [2023-12-25 05:32:13,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:32:13,417 INFO L262 TraceCheckSpWp]: Trace formula consists of 815 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:32:13,421 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:32:13,482 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2023-12-25 05:32:13,482 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:32:13,482 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:32:13,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1962299768] [2023-12-25 05:32:13,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1962299768] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:32:13,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:32:13,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:32:13,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313676118] [2023-12-25 05:32:13,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:32:13,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:32:13,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:32:13,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:32:13,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:32:13,484 INFO L87 Difference]: Start difference. First operand 19203 states and 32435 transitions. Second operand has 8 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 states have internal predecessors, (99), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-25 05:32:14,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:32:14,853 INFO L93 Difference]: Finished difference Result 27427 states and 46118 transitions. [2023-12-25 05:32:14,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:32:14,854 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 states have internal predecessors, (99), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 157 [2023-12-25 05:32:14,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:32:14,962 INFO L225 Difference]: With dead ends: 27427 [2023-12-25 05:32:14,962 INFO L226 Difference]: Without dead ends: 19006 [2023-12-25 05:32:14,996 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:32:14,996 INFO L413 NwaCegarLoop]: 771 mSDtfsCounter, 25 mSDsluCounter, 4609 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 5380 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:32:14,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 5380 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:32:15,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19006 states. [2023-12-25 05:32:16,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19006 to 19006. [2023-12-25 05:32:16,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19006 states, 13669 states have (on average 1.5889238422708318) internal successors, (21719), 14643 states have internal predecessors, (21719), 4440 states have call successors, (4440), 737 states have call predecessors, (4440), 896 states have return successors, (5944), 4329 states have call predecessors, (5944), 4435 states have call successors, (5944) [2023-12-25 05:32:16,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19006 states to 19006 states and 32103 transitions. [2023-12-25 05:32:16,416 INFO L78 Accepts]: Start accepts. Automaton has 19006 states and 32103 transitions. Word has length 157 [2023-12-25 05:32:16,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:32:16,417 INFO L495 AbstractCegarLoop]: Abstraction has 19006 states and 32103 transitions. [2023-12-25 05:32:16,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 states have internal predecessors, (99), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-25 05:32:16,417 INFO L276 IsEmpty]: Start isEmpty. Operand 19006 states and 32103 transitions. [2023-12-25 05:32:16,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-12-25 05:32:16,424 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:32:16,424 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 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, 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] [2023-12-25 05:32:16,431 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 (33)] Ended with exit code 0 [2023-12-25 05:32:16,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 05:32:16,625 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:32:16,625 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:32:16,625 INFO L85 PathProgramCache]: Analyzing trace with hash -25565257, now seen corresponding path program 1 times [2023-12-25 05:32:16,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:32:16,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1637427400] [2023-12-25 05:32:16,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:32:16,626 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 05:32:16,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:32:16,627 INFO L229 MonitoredProcess]: Starting monitored process 34 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 05:32:16,731 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 (34)] Waiting until timeout for monitored process [2023-12-25 05:32:17,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:32:17,037 INFO L262 TraceCheckSpWp]: Trace formula consists of 966 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:32:17,040 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:32:17,053 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-12-25 05:32:17,053 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:32:17,053 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:32:17,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1637427400] [2023-12-25 05:32:17,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1637427400] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:32:17,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:32:17,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:32:17,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854404474] [2023-12-25 05:32:17,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:32:17,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:32:17,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:32:17,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:32:17,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:32:17,056 INFO L87 Difference]: Start difference. First operand 19006 states and 32103 transitions. Second operand has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-25 05:32:19,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:32:19,482 INFO L93 Difference]: Finished difference Result 43998 states and 75542 transitions. [2023-12-25 05:32:19,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:32:19,483 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 174 [2023-12-25 05:32:19,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:32:19,630 INFO L225 Difference]: With dead ends: 43998 [2023-12-25 05:32:19,630 INFO L226 Difference]: Without dead ends: 26975 [2023-12-25 05:32:19,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 172 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 05:32:19,674 INFO L413 NwaCegarLoop]: 960 mSDtfsCounter, 211 mSDsluCounter, 1641 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 2601 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:32:19,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 2601 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:32:19,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26975 states. [2023-12-25 05:32:21,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26975 to 19062. [2023-12-25 05:32:21,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19062 states, 13725 states have (on average 1.5865209471766848) internal successors, (21775), 14699 states have internal predecessors, (21775), 4440 states have call successors, (4440), 737 states have call predecessors, (4440), 896 states have return successors, (5944), 4329 states have call predecessors, (5944), 4435 states have call successors, (5944) [2023-12-25 05:32:21,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19062 states to 19062 states and 32159 transitions. [2023-12-25 05:32:21,206 INFO L78 Accepts]: Start accepts. Automaton has 19062 states and 32159 transitions. Word has length 174 [2023-12-25 05:32:21,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:32:21,206 INFO L495 AbstractCegarLoop]: Abstraction has 19062 states and 32159 transitions. [2023-12-25 05:32:21,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-25 05:32:21,206 INFO L276 IsEmpty]: Start isEmpty. Operand 19062 states and 32159 transitions. [2023-12-25 05:32:21,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-12-25 05:32:21,213 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:32:21,214 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:32:21,225 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 (34)] Forceful destruction successful, exit code 0 [2023-12-25 05:32:21,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 05:32:21,416 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:32:21,417 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:32:21,417 INFO L85 PathProgramCache]: Analyzing trace with hash -773029149, now seen corresponding path program 1 times [2023-12-25 05:32:21,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:32:21,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1141386941] [2023-12-25 05:32:21,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:32:21,418 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 05:32:21,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:32:21,420 INFO L229 MonitoredProcess]: Starting monitored process 35 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 05:32:21,423 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 (35)] Waiting until timeout for monitored process [2023-12-25 05:32:21,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:32:21,755 INFO L262 TraceCheckSpWp]: Trace formula consists of 972 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 05:32:21,759 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:32:21,920 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 12 proven. 26 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2023-12-25 05:32:21,920 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:32:22,383 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 14 proven. 26 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-12-25 05:32:22,384 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:32:22,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1141386941] [2023-12-25 05:32:22,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1141386941] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:32:22,384 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:32:22,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 15 [2023-12-25 05:32:22,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453959491] [2023-12-25 05:32:22,384 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:32:22,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-25 05:32:22,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:32:22,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-25 05:32:22,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2023-12-25 05:32:22,386 INFO L87 Difference]: Start difference. First operand 19062 states and 32159 transitions. Second operand has 15 states, 15 states have (on average 12.266666666666667) internal successors, (184), 15 states have internal predecessors, (184), 10 states have call successors, (34), 6 states have call predecessors, (34), 8 states have return successors, (34), 10 states have call predecessors, (34), 9 states have call successors, (34) [2023-12-25 05:32:30,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:32:30,857 INFO L93 Difference]: Finished difference Result 53560 states and 90704 transitions. [2023-12-25 05:32:30,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-12-25 05:32:30,859 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 12.266666666666667) internal successors, (184), 15 states have internal predecessors, (184), 10 states have call successors, (34), 6 states have call predecessors, (34), 8 states have return successors, (34), 10 states have call predecessors, (34), 9 states have call successors, (34) Word has length 176 [2023-12-25 05:32:30,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:32:31,021 INFO L225 Difference]: With dead ends: 53560 [2023-12-25 05:32:31,021 INFO L226 Difference]: Without dead ends: 36684 [2023-12-25 05:32:31,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 394 GetRequests, 353 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 394 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=389, Invalid=1417, Unknown=0, NotChecked=0, Total=1806 [2023-12-25 05:32:31,079 INFO L413 NwaCegarLoop]: 519 mSDtfsCounter, 10420 mSDsluCounter, 2405 mSDsCounter, 0 mSdLazyCounter, 6699 mSolverCounterSat, 2981 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10494 SdHoareTripleChecker+Valid, 2924 SdHoareTripleChecker+Invalid, 9680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2981 IncrementalHoareTripleChecker+Valid, 6699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:32:31,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10494 Valid, 2924 Invalid, 9680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2981 Valid, 6699 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2023-12-25 05:32:31,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36684 states. [2023-12-25 05:32:33,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36684 to 36100. [2023-12-25 05:32:33,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36100 states, 25942 states have (on average 1.5803330506514532) internal successors, (40997), 27697 states have internal predecessors, (40997), 8341 states have call successors, (8341), 1478 states have call predecessors, (8341), 1816 states have return successors, (11505), 8224 states have call predecessors, (11505), 8336 states have call successors, (11505) [2023-12-25 05:32:34,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36100 states to 36100 states and 60843 transitions. [2023-12-25 05:32:34,019 INFO L78 Accepts]: Start accepts. Automaton has 36100 states and 60843 transitions. Word has length 176 [2023-12-25 05:32:34,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:32:34,020 INFO L495 AbstractCegarLoop]: Abstraction has 36100 states and 60843 transitions. [2023-12-25 05:32:34,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 12.266666666666667) internal successors, (184), 15 states have internal predecessors, (184), 10 states have call successors, (34), 6 states have call predecessors, (34), 8 states have return successors, (34), 10 states have call predecessors, (34), 9 states have call successors, (34) [2023-12-25 05:32:34,020 INFO L276 IsEmpty]: Start isEmpty. Operand 36100 states and 60843 transitions. [2023-12-25 05:32:34,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2023-12-25 05:32:34,029 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:32:34,029 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 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, 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] [2023-12-25 05:32:34,040 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 (35)] Forceful destruction successful, exit code 0 [2023-12-25 05:32:34,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 05:32:34,240 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:32:34,241 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:32:34,241 INFO L85 PathProgramCache]: Analyzing trace with hash 341862161, now seen corresponding path program 1 times [2023-12-25 05:32:34,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:32:34,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1904437983] [2023-12-25 05:32:34,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:32:34,241 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 05:32:34,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:32:34,242 INFO L229 MonitoredProcess]: Starting monitored process 36 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 05:32:34,275 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 (36)] Waiting until timeout for monitored process [2023-12-25 05:32:34,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:32:34,571 INFO L262 TraceCheckSpWp]: Trace formula consists of 967 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-25 05:32:34,574 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:32:34,740 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-12-25 05:32:34,741 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:32:34,741 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:32:34,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1904437983] [2023-12-25 05:32:34,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1904437983] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:32:34,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:32:34,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 05:32:34,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725498920] [2023-12-25 05:32:34,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:32:34,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 05:32:34,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:32:34,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 05:32:34,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-12-25 05:32:34,742 INFO L87 Difference]: Start difference. First operand 36100 states and 60843 transitions. Second operand has 9 states, 9 states have (on average 13.333333333333334) internal successors, (120), 8 states have internal predecessors, (120), 6 states have call successors, (20), 4 states have call predecessors, (20), 6 states have return successors, (20), 7 states have call predecessors, (20), 5 states have call successors, (20) [2023-12-25 05:32:41,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:32:41,038 INFO L93 Difference]: Finished difference Result 70195 states and 118547 transitions. [2023-12-25 05:32:41,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-25 05:32:41,039 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.333333333333334) internal successors, (120), 8 states have internal predecessors, (120), 6 states have call successors, (20), 4 states have call predecessors, (20), 6 states have return successors, (20), 7 states have call predecessors, (20), 5 states have call successors, (20) Word has length 175 [2023-12-25 05:32:41,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:32:41,248 INFO L225 Difference]: With dead ends: 70195 [2023-12-25 05:32:41,249 INFO L226 Difference]: Without dead ends: 36329 [2023-12-25 05:32:41,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2023-12-25 05:32:41,340 INFO L413 NwaCegarLoop]: 770 mSDtfsCounter, 2895 mSDsluCounter, 2167 mSDsCounter, 0 mSdLazyCounter, 5288 mSolverCounterSat, 621 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2991 SdHoareTripleChecker+Valid, 2937 SdHoareTripleChecker+Invalid, 5909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 621 IncrementalHoareTripleChecker+Valid, 5288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-12-25 05:32:41,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2991 Valid, 2937 Invalid, 5909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [621 Valid, 5288 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-12-25 05:32:41,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36329 states. [2023-12-25 05:32:43,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36329 to 36154. [2023-12-25 05:32:43,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36154 states, 25987 states have (on average 1.5793281256012621) internal successors, (41042), 27733 states have internal predecessors, (41042), 8341 states have call successors, (8341), 1478 states have call predecessors, (8341), 1825 states have return successors, (11514), 8242 states have call predecessors, (11514), 8336 states have call successors, (11514) [2023-12-25 05:32:44,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36154 states to 36154 states and 60897 transitions. [2023-12-25 05:32:44,187 INFO L78 Accepts]: Start accepts. Automaton has 36154 states and 60897 transitions. Word has length 175 [2023-12-25 05:32:44,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:32:44,188 INFO L495 AbstractCegarLoop]: Abstraction has 36154 states and 60897 transitions. [2023-12-25 05:32:44,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.333333333333334) internal successors, (120), 8 states have internal predecessors, (120), 6 states have call successors, (20), 4 states have call predecessors, (20), 6 states have return successors, (20), 7 states have call predecessors, (20), 5 states have call successors, (20) [2023-12-25 05:32:44,188 INFO L276 IsEmpty]: Start isEmpty. Operand 36154 states and 60897 transitions. [2023-12-25 05:32:44,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-12-25 05:32:44,193 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:32:44,193 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:32:44,201 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 (36)] Forceful destruction successful, exit code 0 [2023-12-25 05:32:44,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 05:32:44,402 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:32:44,402 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:32:44,402 INFO L85 PathProgramCache]: Analyzing trace with hash -184279110, now seen corresponding path program 1 times [2023-12-25 05:32:44,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:32:44,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1549279830] [2023-12-25 05:32:44,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:32:44,403 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 05:32:44,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:32:44,404 INFO L229 MonitoredProcess]: Starting monitored process 37 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 05:32:44,405 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 (37)] Waiting until timeout for monitored process [2023-12-25 05:32:44,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:32:44,711 INFO L262 TraceCheckSpWp]: Trace formula consists of 968 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 05:32:44,714 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:32:44,884 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 14 proven. 30 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2023-12-25 05:32:44,884 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:32:45,296 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 16 proven. 30 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-12-25 05:32:45,296 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:32:45,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1549279830] [2023-12-25 05:32:45,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1549279830] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:32:45,296 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:32:45,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 14 [2023-12-25 05:32:45,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646538854] [2023-12-25 05:32:45,297 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:32:45,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-25 05:32:45,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:32:45,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-25 05:32:45,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-12-25 05:32:45,298 INFO L87 Difference]: Start difference. First operand 36154 states and 60897 transitions. Second operand has 14 states, 14 states have (on average 13.285714285714286) internal successors, (186), 14 states have internal predecessors, (186), 9 states have call successors, (33), 6 states have call predecessors, (33), 8 states have return successors, (32), 9 states have call predecessors, (32), 8 states have call successors, (32) [2023-12-25 05:32:54,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:32:54,763 INFO L93 Difference]: Finished difference Result 92935 states and 159225 transitions. [2023-12-25 05:32:54,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-25 05:32:54,764 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 13.285714285714286) internal successors, (186), 14 states have internal predecessors, (186), 9 states have call successors, (33), 6 states have call predecessors, (33), 8 states have return successors, (32), 9 states have call predecessors, (32), 8 states have call successors, (32) Word has length 176 [2023-12-25 05:32:54,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:32:55,041 INFO L225 Difference]: With dead ends: 92935 [2023-12-25 05:32:55,041 INFO L226 Difference]: Without dead ends: 29334 [2023-12-25 05:32:55,222 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 391 GetRequests, 354 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 304 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=362, Invalid=1120, Unknown=0, NotChecked=0, Total=1482 [2023-12-25 05:32:55,223 INFO L413 NwaCegarLoop]: 474 mSDtfsCounter, 6824 mSDsluCounter, 2170 mSDsCounter, 0 mSdLazyCounter, 5192 mSolverCounterSat, 1963 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6903 SdHoareTripleChecker+Valid, 2644 SdHoareTripleChecker+Invalid, 7155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1963 IncrementalHoareTripleChecker+Valid, 5192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-12-25 05:32:55,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6903 Valid, 2644 Invalid, 7155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1963 Valid, 5192 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-12-25 05:32:55,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29334 states. [2023-12-25 05:32:57,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29334 to 22301. [2023-12-25 05:32:57,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22301 states, 16386 states have (on average 1.5725619431221776) internal successors, (25768), 17409 states have internal predecessors, (25768), 4644 states have call successors, (4644), 1076 states have call predecessors, (4644), 1270 states have return successors, (6576), 4495 states have call predecessors, (6576), 4639 states have call successors, (6576) [2023-12-25 05:32:57,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22301 states to 22301 states and 36988 transitions. [2023-12-25 05:32:57,336 INFO L78 Accepts]: Start accepts. Automaton has 22301 states and 36988 transitions. Word has length 176 [2023-12-25 05:32:57,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:32:57,337 INFO L495 AbstractCegarLoop]: Abstraction has 22301 states and 36988 transitions. [2023-12-25 05:32:57,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 13.285714285714286) internal successors, (186), 14 states have internal predecessors, (186), 9 states have call successors, (33), 6 states have call predecessors, (33), 8 states have return successors, (32), 9 states have call predecessors, (32), 8 states have call successors, (32) [2023-12-25 05:32:57,337 INFO L276 IsEmpty]: Start isEmpty. Operand 22301 states and 36988 transitions. [2023-12-25 05:32:57,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2023-12-25 05:32:57,341 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:32:57,341 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 3, 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, 1, 1, 1, 1, 1, 1, 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 05:32:57,350 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 (37)] Forceful destruction successful, exit code 0 [2023-12-25 05:32:57,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 05:32:57,542 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:32:57,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:32:57,543 INFO L85 PathProgramCache]: Analyzing trace with hash 192828252, now seen corresponding path program 1 times [2023-12-25 05:32:57,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:32:57,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [523060775] [2023-12-25 05:32:57,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:32:57,543 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:32:57,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:32:57,544 INFO L229 MonitoredProcess]: Starting monitored process 38 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 05:32:57,547 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 (38)] Waiting until timeout for monitored process [2023-12-25 05:32:57,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:32:57,859 INFO L262 TraceCheckSpWp]: Trace formula consists of 1038 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:32:57,870 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:32:57,880 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2023-12-25 05:32:57,880 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:32:57,880 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:32:57,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [523060775] [2023-12-25 05:32:57,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [523060775] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:32:57,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:32:57,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:32:57,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707994876] [2023-12-25 05:32:57,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:32:57,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:32:57,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:32:57,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:32:57,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:32:57,882 INFO L87 Difference]: Start difference. First operand 22301 states and 36988 transitions. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-12-25 05:32:59,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:32:59,859 INFO L93 Difference]: Finished difference Result 44564 states and 74081 transitions. [2023-12-25 05:32:59,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:32:59,859 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 215 [2023-12-25 05:32:59,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:32:59,963 INFO L225 Difference]: With dead ends: 44564 [2023-12-25 05:32:59,963 INFO L226 Difference]: Without dead ends: 22301 [2023-12-25 05:33:00,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 212 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 05:33:00,044 INFO L413 NwaCegarLoop]: 810 mSDtfsCounter, 97 mSDsluCounter, 1522 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 2332 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:33:00,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 2332 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:33:00,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22301 states. [2023-12-25 05:33:01,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22301 to 22295. [2023-12-25 05:33:01,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22295 states, 16380 states have (on average 1.56996336996337) internal successors, (25716), 17403 states have internal predecessors, (25716), 4644 states have call successors, (4644), 1076 states have call predecessors, (4644), 1270 states have return successors, (6576), 4495 states have call predecessors, (6576), 4639 states have call successors, (6576) [2023-12-25 05:33:01,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22295 states to 22295 states and 36936 transitions. [2023-12-25 05:33:01,861 INFO L78 Accepts]: Start accepts. Automaton has 22295 states and 36936 transitions. Word has length 215 [2023-12-25 05:33:01,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:33:01,862 INFO L495 AbstractCegarLoop]: Abstraction has 22295 states and 36936 transitions. [2023-12-25 05:33:01,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-12-25 05:33:01,862 INFO L276 IsEmpty]: Start isEmpty. Operand 22295 states and 36936 transitions. [2023-12-25 05:33:01,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2023-12-25 05:33:01,867 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:33:01,867 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:33:01,876 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 (38)] Ended with exit code 0 [2023-12-25 05:33:02,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 05:33:02,068 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:33:02,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:33:02,068 INFO L85 PathProgramCache]: Analyzing trace with hash 818728339, now seen corresponding path program 1 times [2023-12-25 05:33:02,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:33:02,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [135199815] [2023-12-25 05:33:02,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:33:02,069 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 05:33:02,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:33:02,070 INFO L229 MonitoredProcess]: Starting monitored process 39 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 05:33:02,071 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 (39)] Waiting until timeout for monitored process [2023-12-25 05:33:02,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:33:02,384 INFO L262 TraceCheckSpWp]: Trace formula consists of 1039 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:33:02,387 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:33:02,598 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-12-25 05:33:02,599 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:33:02,808 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-12-25 05:33:02,808 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:33:02,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [135199815] [2023-12-25 05:33:02,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [135199815] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:33:02,808 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:33:02,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 10 [2023-12-25 05:33:02,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967499635] [2023-12-25 05:33:02,809 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:33:02,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-25 05:33:02,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:33:02,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-25 05:33:02,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-25 05:33:02,810 INFO L87 Difference]: Start difference. First operand 22295 states and 36936 transitions. Second operand has 10 states, 10 states have (on average 20.3) internal successors, (203), 10 states have internal predecessors, (203), 7 states have call successors, (38), 6 states have call predecessors, (38), 5 states have return successors, (36), 7 states have call predecessors, (36), 6 states have call successors, (36) [2023-12-25 05:33:09,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:33:09,087 INFO L93 Difference]: Finished difference Result 62248 states and 104942 transitions. [2023-12-25 05:33:09,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-25 05:33:09,089 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 20.3) internal successors, (203), 10 states have internal predecessors, (203), 7 states have call successors, (38), 6 states have call predecessors, (38), 5 states have return successors, (36), 7 states have call predecessors, (36), 6 states have call successors, (36) Word has length 216 [2023-12-25 05:33:09,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:33:09,288 INFO L225 Difference]: With dead ends: 62248 [2023-12-25 05:33:09,289 INFO L226 Difference]: Without dead ends: 39965 [2023-12-25 05:33:09,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 435 GetRequests, 424 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2023-12-25 05:33:09,371 INFO L413 NwaCegarLoop]: 478 mSDtfsCounter, 2571 mSDsluCounter, 1634 mSDsCounter, 0 mSdLazyCounter, 5936 mSolverCounterSat, 595 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2705 SdHoareTripleChecker+Valid, 2112 SdHoareTripleChecker+Invalid, 6531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 595 IncrementalHoareTripleChecker+Valid, 5936 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:33:09,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2705 Valid, 2112 Invalid, 6531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [595 Valid, 5936 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-12-25 05:33:09,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39965 states. [2023-12-25 05:33:11,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39965 to 39034. [2023-12-25 05:33:12,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39034 states, 28716 states have (on average 1.5967404931048892) internal successors, (45852), 30509 states have internal predecessors, (45852), 8279 states have call successors, (8279), 1735 states have call predecessors, (8279), 2038 states have return successors, (11520), 8181 states have call predecessors, (11520), 8274 states have call successors, (11520) [2023-12-25 05:33:12,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39034 states to 39034 states and 65651 transitions. [2023-12-25 05:33:12,303 INFO L78 Accepts]: Start accepts. Automaton has 39034 states and 65651 transitions. Word has length 216 [2023-12-25 05:33:12,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:33:12,304 INFO L495 AbstractCegarLoop]: Abstraction has 39034 states and 65651 transitions. [2023-12-25 05:33:12,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 20.3) internal successors, (203), 10 states have internal predecessors, (203), 7 states have call successors, (38), 6 states have call predecessors, (38), 5 states have return successors, (36), 7 states have call predecessors, (36), 6 states have call successors, (36) [2023-12-25 05:33:12,304 INFO L276 IsEmpty]: Start isEmpty. Operand 39034 states and 65651 transitions. [2023-12-25 05:33:12,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2023-12-25 05:33:12,307 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:33:12,307 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 3, 3, 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, 1, 1, 1, 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 05:33:12,316 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 (39)] Ended with exit code 0 [2023-12-25 05:33:12,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 05:33:12,508 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:33:12,509 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:33:12,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1707080124, now seen corresponding path program 1 times [2023-12-25 05:33:12,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:33:12,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1676950387] [2023-12-25 05:33:12,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:33:12,510 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 05:33:12,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:33:12,511 INFO L229 MonitoredProcess]: Starting monitored process 40 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 05:33:12,512 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 (40)] Waiting until timeout for monitored process [2023-12-25 05:33:12,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:33:12,832 INFO L262 TraceCheckSpWp]: Trace formula consists of 1026 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-25 05:33:12,835 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:33:13,107 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 7 proven. 28 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2023-12-25 05:33:13,107 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:33:13,593 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 2 proven. 34 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-12-25 05:33:13,594 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:33:13,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1676950387] [2023-12-25 05:33:13,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1676950387] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:33:13,594 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:33:13,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 18 [2023-12-25 05:33:13,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733324028] [2023-12-25 05:33:13,594 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:33:13,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-25 05:33:13,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:33:13,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-25 05:33:13,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2023-12-25 05:33:13,596 INFO L87 Difference]: Start difference. First operand 39034 states and 65651 transitions. Second operand has 18 states, 16 states have (on average 15.125) internal successors, (242), 18 states have internal predecessors, (242), 13 states have call successors, (44), 6 states have call predecessors, (44), 9 states have return successors, (43), 13 states have call predecessors, (43), 12 states have call successors, (43) [2023-12-25 05:33:29,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:33:29,373 INFO L93 Difference]: Finished difference Result 179654 states and 309494 transitions. [2023-12-25 05:33:29,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-12-25 05:33:29,375 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 15.125) internal successors, (242), 18 states have internal predecessors, (242), 13 states have call successors, (44), 6 states have call predecessors, (44), 9 states have return successors, (43), 13 states have call predecessors, (43), 12 states have call successors, (43) Word has length 211 [2023-12-25 05:33:29,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:33:30,828 INFO L225 Difference]: With dead ends: 179654 [2023-12-25 05:33:30,829 INFO L226 Difference]: Without dead ends: 139660 [2023-12-25 05:33:31,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 456 GetRequests, 416 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 377 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=332, Invalid=1390, Unknown=0, NotChecked=0, Total=1722 [2023-12-25 05:33:31,116 INFO L413 NwaCegarLoop]: 545 mSDtfsCounter, 7997 mSDsluCounter, 3169 mSDsCounter, 0 mSdLazyCounter, 8397 mSolverCounterSat, 2353 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8115 SdHoareTripleChecker+Valid, 3714 SdHoareTripleChecker+Invalid, 10750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2353 IncrementalHoareTripleChecker+Valid, 8397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:33:31,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8115 Valid, 3714 Invalid, 10750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2353 Valid, 8397 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2023-12-25 05:33:31,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139660 states. [2023-12-25 05:33:40,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139660 to 136007. [2023-12-25 05:33:40,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136007 states, 99144 states have (on average 1.591200677801985) internal successors, (157758), 105408 states have internal predecessors, (157758), 30025 states have call successors, (30025), 6039 states have call predecessors, (30025), 6837 states have return successors, (43519), 29827 states have call predecessors, (43519), 30020 states have call successors, (43519) [2023-12-25 05:33:42,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136007 states to 136007 states and 231302 transitions. [2023-12-25 05:33:42,246 INFO L78 Accepts]: Start accepts. Automaton has 136007 states and 231302 transitions. Word has length 211 [2023-12-25 05:33:42,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:33:42,246 INFO L495 AbstractCegarLoop]: Abstraction has 136007 states and 231302 transitions. [2023-12-25 05:33:42,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 15.125) internal successors, (242), 18 states have internal predecessors, (242), 13 states have call successors, (44), 6 states have call predecessors, (44), 9 states have return successors, (43), 13 states have call predecessors, (43), 12 states have call successors, (43) [2023-12-25 05:33:42,246 INFO L276 IsEmpty]: Start isEmpty. Operand 136007 states and 231302 transitions. [2023-12-25 05:33:42,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2023-12-25 05:33:42,249 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:33:42,249 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 3, 3, 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, 1, 1, 1, 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 05:33:42,258 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 (40)] Forceful destruction successful, exit code 0 [2023-12-25 05:33:42,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 05:33:42,458 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:33:42,458 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:33:42,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1939151420, now seen corresponding path program 1 times [2023-12-25 05:33:42,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:33:42,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [206342331] [2023-12-25 05:33:42,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:33:42,459 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 05:33:42,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:33:42,460 INFO L229 MonitoredProcess]: Starting monitored process 41 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 05:33:42,471 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 (41)] Waiting until timeout for monitored process [2023-12-25 05:33:42,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:33:42,790 INFO L262 TraceCheckSpWp]: Trace formula consists of 1032 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:33:42,793 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:33:42,806 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-12-25 05:33:42,806 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:33:42,806 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:33:42,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [206342331] [2023-12-25 05:33:42,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [206342331] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:33:42,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:33:42,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:33:42,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411154911] [2023-12-25 05:33:42,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:33:42,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:33:42,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:33:42,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:33:42,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:33:42,808 INFO L87 Difference]: Start difference. First operand 136007 states and 231302 transitions. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22)