/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_product01.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 05:28:54,843 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 05:28:54,902 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 05:28:54,906 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 05:28:54,906 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 05:28:54,934 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 05:28:54,934 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 05:28:54,934 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 05:28:54,935 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 05:28:54,936 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 05:28:54,936 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 05:28:54,937 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 05:28:54,937 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 05:28:54,940 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 05:28:54,940 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 05:28:54,940 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 05:28:54,940 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 05:28:54,940 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 05:28:54,941 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 05:28:54,941 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 05:28:54,942 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 05:28:54,942 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 05:28:54,942 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 05:28:54,942 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 05:28:54,942 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 05:28:54,942 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 05:28:54,943 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 05:28:54,943 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 05:28:54,943 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 05:28:54,943 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 05:28:54,944 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 05:28:54,944 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 05:28:54,944 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 05:28:54,944 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 05:28:54,944 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:28:54,944 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 05:28:54,944 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 05:28:54,945 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 05:28:54,945 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 05:28:54,945 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 05:28:54,945 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 05:28:54,945 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 05:28:54,945 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 05:28:54,945 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 05:28:54,946 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 05:28:54,946 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 05:28:54,946 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 05:28:55,159 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 05:28:55,187 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 05:28:55,190 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 05:28:55,190 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 05:28:55,191 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 05:28:55,192 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec2_product01.cil.c [2023-12-25 05:28:56,339 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 05:28:56,595 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 05:28:56,595 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product01.cil.c [2023-12-25 05:28:56,615 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b46ad01d0/699e6b68044e4efa8ca80e8095e6c49d/FLAG6613a6119 [2023-12-25 05:28:56,625 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b46ad01d0/699e6b68044e4efa8ca80e8095e6c49d [2023-12-25 05:28:56,627 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 05:28:56,628 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 05:28:56,629 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 05:28:56,629 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 05:28:56,634 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 05:28:56,635 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:28:56" (1/1) ... [2023-12-25 05:28:56,636 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5098a621 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:28:56, skipping insertion in model container [2023-12-25 05:28:56,636 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:28:56" (1/1) ... [2023-12-25 05:28:56,679 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:28:56,789 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_product01.cil.c[1545,1558] [2023-12-25 05:28:57,107 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:28:57,123 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-25 05:28:57,136 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:28:57,141 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_product01.cil.c[1545,1558] [2023-12-25 05:28:57,203 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:28:57,239 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 05:28:57,247 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [48] [2023-12-25 05:28:57,248 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [57] [2023-12-25 05:28:57,248 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [178] [2023-12-25 05:28:57,249 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [192] [2023-12-25 05:28:57,249 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [375] [2023-12-25 05:28:57,249 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [741] [2023-12-25 05:28:57,249 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1101] [2023-12-25 05:28:57,249 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [2529] [2023-12-25 05:28:57,249 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2620] [2023-12-25 05:28:57,249 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [2655] [2023-12-25 05:28:57,251 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_product01.cil.c[1545,1558] [2023-12-25 05:28:57,290 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:28:57,310 INFO L206 MainTranslator]: Completed translation [2023-12-25 05:28:57,310 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:28:57 WrapperNode [2023-12-25 05:28:57,310 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 05:28:57,311 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 05:28:57,311 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 05:28:57,311 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 05:28:57,324 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:28:57" (1/1) ... [2023-12-25 05:28:57,346 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:28:57" (1/1) ... [2023-12-25 05:28:57,376 INFO L138 Inliner]: procedures = 90, calls = 328, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 713 [2023-12-25 05:28:57,377 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 05:28:57,377 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 05:28:57,377 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 05:28:57,377 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 05:28:57,386 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:28:57" (1/1) ... [2023-12-25 05:28:57,386 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:28:57" (1/1) ... [2023-12-25 05:28:57,393 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:28:57" (1/1) ... [2023-12-25 05:28:57,417 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2023-12-25 05:28:57,417 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:28:57" (1/1) ... [2023-12-25 05:28:57,418 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:28:57" (1/1) ... [2023-12-25 05:28:57,446 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:28:57" (1/1) ... [2023-12-25 05:28:57,453 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:28:57" (1/1) ... [2023-12-25 05:28:57,457 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:28:57" (1/1) ... [2023-12-25 05:28:57,472 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:28:57" (1/1) ... [2023-12-25 05:28:57,488 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 05:28:57,489 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 05:28:57,489 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 05:28:57,489 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 05:28:57,490 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:28:57" (1/1) ... [2023-12-25 05:28:57,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:28:57,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 05:28:57,550 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 05:28:57,564 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 05:28:57,583 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 05:28:57,584 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2023-12-25 05:28:57,584 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2023-12-25 05:28:57,584 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-12-25 05:28:57,584 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-12-25 05:28:57,584 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-12-25 05:28:57,584 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-12-25 05:28:57,584 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-12-25 05:28:57,585 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-12-25 05:28:57,585 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-25 05:28:57,585 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-25 05:28:57,587 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-25 05:28:57,587 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-25 05:28:57,588 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2023-12-25 05:28:57,588 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2023-12-25 05:28:57,588 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-12-25 05:28:57,588 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-12-25 05:28:57,588 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-12-25 05:28:57,588 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-12-25 05:28:57,588 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-12-25 05:28:57,588 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-12-25 05:28:57,588 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-12-25 05:28:57,588 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-12-25 05:28:57,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 05:28:57,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-25 05:28:57,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-25 05:28:57,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-25 05:28:57,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-12-25 05:28:57,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2023-12-25 05:28:57,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2023-12-25 05:28:57,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2023-12-25 05:28:57,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2023-12-25 05:28:57,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2023-12-25 05:28:57,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2023-12-25 05:28:57,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2023-12-25 05:28:57,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12 [2023-12-25 05:28:57,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#13 [2023-12-25 05:28:57,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#14 [2023-12-25 05:28:57,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#15 [2023-12-25 05:28:57,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#16 [2023-12-25 05:28:57,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#17 [2023-12-25 05:28:57,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#18 [2023-12-25 05:28:57,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#19 [2023-12-25 05:28:57,590 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-12-25 05:28:57,590 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-12-25 05:28:57,590 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-12-25 05:28:57,590 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-12-25 05:28:57,590 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-12-25 05:28:57,590 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-12-25 05:28:57,590 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-12-25 05:28:57,590 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-12-25 05:28:57,590 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-12-25 05:28:57,590 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-12-25 05:28:57,590 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-12-25 05:28:57,590 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-12-25 05:28:57,590 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-12-25 05:28:57,590 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-12-25 05:28:57,591 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-12-25 05:28:57,591 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-12-25 05:28:57,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 05:28:57,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 05:28:57,596 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-12-25 05:28:57,596 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-12-25 05:28:57,768 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 05:28:57,770 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 05:28:58,528 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 05:28:58,615 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 05:28:58,616 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-25 05:28:58,616 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:28:58 BoogieIcfgContainer [2023-12-25 05:28:58,617 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 05:28:58,618 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 05:28:58,618 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 05:28:58,621 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 05:28:58,621 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 05:28:56" (1/3) ... [2023-12-25 05:28:58,622 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66f633c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:28:58, skipping insertion in model container [2023-12-25 05:28:58,622 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:28:57" (2/3) ... [2023-12-25 05:28:58,622 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66f633c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:28:58, skipping insertion in model container [2023-12-25 05:28:58,623 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:28:58" (3/3) ... [2023-12-25 05:28:58,624 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product01.cil.c [2023-12-25 05:28:58,636 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 05:28:58,636 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 05:28:58,677 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 05:28:58,681 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;@39e83665, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 05:28:58,681 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 05:28:58,693 INFO L276 IsEmpty]: Start isEmpty. Operand has 498 states, 390 states have (on average 1.7512820512820513) internal successors, (683), 411 states have internal predecessors, (683), 86 states have call successors, (86), 20 states have call predecessors, (86), 20 states have return successors, (86), 80 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-25 05:28:58,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-25 05:28:58,708 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:28:58,709 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 05:28:58,709 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:28:58,712 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:28:58,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1566929844, now seen corresponding path program 1 times [2023-12-25 05:28:58,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:28:58,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [943687573] [2023-12-25 05:28:58,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:28:58,722 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 05:28:58,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:28:58,724 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 05:28:58,741 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 05:28:58,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:28:59,012 INFO L262 TraceCheckSpWp]: Trace formula consists of 676 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-25 05:28:59,018 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:28:59,040 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 05:28:59,040 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:28:59,041 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:28:59,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [943687573] [2023-12-25 05:28:59,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [943687573] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:28:59,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:28:59,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 05:28:59,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323620873] [2023-12-25 05:28:59,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:28:59,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-25 05:28:59,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:28:59,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-25 05:28:59,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 05:28:59,072 INFO L87 Difference]: Start difference. First operand has 498 states, 390 states have (on average 1.7512820512820513) internal successors, (683), 411 states have internal predecessors, (683), 86 states have call successors, (86), 20 states have call predecessors, (86), 20 states have return successors, (86), 80 states have call predecessors, (86), 86 states have call successors, (86) 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 05:28:59,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:28:59,200 INFO L93 Difference]: Finished difference Result 516 states and 882 transitions. [2023-12-25 05:28:59,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-25 05:28:59,207 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 05:28:59,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:28:59,223 INFO L225 Difference]: With dead ends: 516 [2023-12-25 05:28:59,223 INFO L226 Difference]: Without dead ends: 494 [2023-12-25 05:28:59,226 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 05:28:59,229 INFO L413 NwaCegarLoop]: 834 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 834 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:28:59,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 834 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:28:59,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2023-12-25 05:28:59,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 494. [2023-12-25 05:28:59,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 388 states have (on average 1.7422680412371134) internal successors, (676), 407 states have internal predecessors, (676), 86 states have call successors, (86), 20 states have call predecessors, (86), 19 states have return successors, (81), 79 states have call predecessors, (81), 81 states have call successors, (81) [2023-12-25 05:28:59,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 843 transitions. [2023-12-25 05:28:59,300 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 843 transitions. Word has length 65 [2023-12-25 05:28:59,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:28:59,301 INFO L495 AbstractCegarLoop]: Abstraction has 494 states and 843 transitions. [2023-12-25 05:28:59,301 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 05:28:59,301 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 843 transitions. [2023-12-25 05:28:59,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-25 05:28:59,308 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:28:59,309 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 05:28:59,317 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-25 05:28:59,517 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 05:28:59,518 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:28:59,519 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:28:59,519 INFO L85 PathProgramCache]: Analyzing trace with hash -929195765, now seen corresponding path program 1 times [2023-12-25 05:28:59,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:28:59,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [77182291] [2023-12-25 05:28:59,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:28:59,520 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 05:28:59,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:28:59,521 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 05:28:59,522 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 05:28:59,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:28:59,792 INFO L262 TraceCheckSpWp]: Trace formula consists of 677 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:28:59,797 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:28:59,837 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 05:28:59,838 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:28:59,838 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:28:59,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [77182291] [2023-12-25 05:28:59,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [77182291] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:28:59,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:28:59,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:28:59,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019756096] [2023-12-25 05:28:59,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:28:59,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:28:59,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:28:59,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:28:59,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:28:59,842 INFO L87 Difference]: Start difference. First operand 494 states and 843 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 05:28:59,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:28:59,957 INFO L93 Difference]: Finished difference Result 976 states and 1668 transitions. [2023-12-25 05:28:59,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:28:59,958 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 05:28:59,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:28:59,961 INFO L225 Difference]: With dead ends: 976 [2023-12-25 05:28:59,962 INFO L226 Difference]: Without dead ends: 494 [2023-12-25 05:28:59,965 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 05:28:59,966 INFO L413 NwaCegarLoop]: 819 mSDtfsCounter, 14 mSDsluCounter, 1633 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 2452 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 05:28:59,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 2452 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:28:59,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2023-12-25 05:28:59,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 494. [2023-12-25 05:28:59,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 388 states have (on average 1.7396907216494846) internal successors, (675), 407 states have internal predecessors, (675), 86 states have call successors, (86), 20 states have call predecessors, (86), 19 states have return successors, (81), 79 states have call predecessors, (81), 81 states have call successors, (81) [2023-12-25 05:28:59,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 842 transitions. [2023-12-25 05:28:59,989 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 842 transitions. Word has length 66 [2023-12-25 05:28:59,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:28:59,990 INFO L495 AbstractCegarLoop]: Abstraction has 494 states and 842 transitions. [2023-12-25 05:28:59,990 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 05:28:59,990 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 842 transitions. [2023-12-25 05:28:59,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-25 05:28:59,994 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:28:59,994 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 05:29:00,024 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 (3)] Ended with exit code 0 [2023-12-25 05:29:00,204 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 05:29:00,205 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:29:00,206 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:29:00,206 INFO L85 PathProgramCache]: Analyzing trace with hash -866191355, now seen corresponding path program 1 times [2023-12-25 05:29:00,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:29:00,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1420343832] [2023-12-25 05:29:00,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:29:00,207 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 05:29:00,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:29:00,209 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 05:29:00,211 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 05:29:00,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:29:00,458 INFO L262 TraceCheckSpWp]: Trace formula consists of 678 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:29:00,461 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:29:00,484 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 05:29:00,484 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:29:00,484 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:29:00,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1420343832] [2023-12-25 05:29:00,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1420343832] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:29:00,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:29:00,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:29:00,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317823345] [2023-12-25 05:29:00,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:29:00,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:29:00,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:29:00,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:29:00,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:29:00,486 INFO L87 Difference]: Start difference. First operand 494 states and 842 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 05:29:00,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:29:00,584 INFO L93 Difference]: Finished difference Result 976 states and 1667 transitions. [2023-12-25 05:29:00,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:29:00,585 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 05:29:00,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:29:00,588 INFO L225 Difference]: With dead ends: 976 [2023-12-25 05:29:00,588 INFO L226 Difference]: Without dead ends: 494 [2023-12-25 05:29:00,590 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 05:29:00,593 INFO L413 NwaCegarLoop]: 819 mSDtfsCounter, 12 mSDsluCounter, 1633 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2452 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:29:00,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2452 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:29:00,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2023-12-25 05:29:00,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 494. [2023-12-25 05:29:00,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 388 states have (on average 1.7371134020618557) internal successors, (674), 407 states have internal predecessors, (674), 86 states have call successors, (86), 20 states have call predecessors, (86), 19 states have return successors, (81), 79 states have call predecessors, (81), 81 states have call successors, (81) [2023-12-25 05:29:00,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 841 transitions. [2023-12-25 05:29:00,620 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 841 transitions. Word has length 67 [2023-12-25 05:29:00,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:29:00,621 INFO L495 AbstractCegarLoop]: Abstraction has 494 states and 841 transitions. [2023-12-25 05:29:00,621 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 05:29:00,621 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 841 transitions. [2023-12-25 05:29:00,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-25 05:29:00,624 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:29:00,624 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] [2023-12-25 05:29:00,635 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 05:29:00,835 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 05:29:00,836 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:29:00,836 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:29:00,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1490593223, now seen corresponding path program 1 times [2023-12-25 05:29:00,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:29:00,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [42444058] [2023-12-25 05:29:00,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:29:00,837 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 05:29:00,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:29:00,838 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 05:29:00,840 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 05:29:01,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:29:01,142 INFO L262 TraceCheckSpWp]: Trace formula consists of 679 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:29:01,145 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:29:01,178 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 05:29:01,178 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:29:01,178 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:29:01,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [42444058] [2023-12-25 05:29:01,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [42444058] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:29:01,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:29:01,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:29:01,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172169133] [2023-12-25 05:29:01,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:29:01,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:29:01,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:29:01,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:29:01,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:29:01,180 INFO L87 Difference]: Start difference. First operand 494 states and 841 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 05:29:01,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:29:01,260 INFO L93 Difference]: Finished difference Result 976 states and 1666 transitions. [2023-12-25 05:29:01,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:29:01,260 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 05:29:01,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:29:01,264 INFO L225 Difference]: With dead ends: 976 [2023-12-25 05:29:01,264 INFO L226 Difference]: Without dead ends: 494 [2023-12-25 05:29:01,267 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 05:29:01,268 INFO L413 NwaCegarLoop]: 819 mSDtfsCounter, 10 mSDsluCounter, 1633 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2452 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 05:29:01,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2452 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:29:01,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2023-12-25 05:29:01,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 494. [2023-12-25 05:29:01,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 388 states have (on average 1.7345360824742269) internal successors, (673), 407 states have internal predecessors, (673), 86 states have call successors, (86), 20 states have call predecessors, (86), 19 states have return successors, (81), 79 states have call predecessors, (81), 81 states have call successors, (81) [2023-12-25 05:29:01,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 840 transitions. [2023-12-25 05:29:01,281 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 840 transitions. Word has length 68 [2023-12-25 05:29:01,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:29:01,281 INFO L495 AbstractCegarLoop]: Abstraction has 494 states and 840 transitions. [2023-12-25 05:29:01,281 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 05:29:01,281 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 840 transitions. [2023-12-25 05:29:01,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-25 05:29:01,283 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:29:01,283 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 05:29:01,290 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-25 05:29:01,489 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 05:29:01,489 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:29:01,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:29:01,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1940118977, now seen corresponding path program 1 times [2023-12-25 05:29:01,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:29:01,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [339214175] [2023-12-25 05:29:01,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:29:01,491 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 05:29:01,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:29:01,492 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 05:29:01,494 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 05:29:01,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:29:01,746 INFO L262 TraceCheckSpWp]: Trace formula consists of 680 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:29:01,748 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:29:01,770 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 05:29:01,770 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:29:01,771 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:29:01,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [339214175] [2023-12-25 05:29:01,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [339214175] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:29:01,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:29:01,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:29:01,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426089564] [2023-12-25 05:29:01,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:29:01,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:29:01,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:29:01,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:29:01,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:29:01,773 INFO L87 Difference]: Start difference. First operand 494 states and 840 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 05:29:01,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:29:01,838 INFO L93 Difference]: Finished difference Result 976 states and 1665 transitions. [2023-12-25 05:29:01,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:29:01,838 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 05:29:01,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:29:01,841 INFO L225 Difference]: With dead ends: 976 [2023-12-25 05:29:01,841 INFO L226 Difference]: Without dead ends: 494 [2023-12-25 05:29:01,843 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 05:29:01,843 INFO L413 NwaCegarLoop]: 819 mSDtfsCounter, 8 mSDsluCounter, 1633 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2452 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:29:01,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2452 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:29:01,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2023-12-25 05:29:01,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 494. [2023-12-25 05:29:01,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 388 states have (on average 1.731958762886598) internal successors, (672), 407 states have internal predecessors, (672), 86 states have call successors, (86), 20 states have call predecessors, (86), 19 states have return successors, (81), 79 states have call predecessors, (81), 81 states have call successors, (81) [2023-12-25 05:29:01,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 839 transitions. [2023-12-25 05:29:01,855 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 839 transitions. Word has length 69 [2023-12-25 05:29:01,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:29:01,855 INFO L495 AbstractCegarLoop]: Abstraction has 494 states and 839 transitions. [2023-12-25 05:29:01,855 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 05:29:01,855 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 839 transitions. [2023-12-25 05:29:01,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-25 05:29:01,857 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:29:01,857 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 05:29:01,864 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 05:29:02,064 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 05:29:02,064 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:29:02,065 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:29:02,065 INFO L85 PathProgramCache]: Analyzing trace with hash -900803965, now seen corresponding path program 1 times [2023-12-25 05:29:02,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:29:02,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1647298232] [2023-12-25 05:29:02,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:29:02,066 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 05:29:02,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:29:02,067 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 05:29:02,067 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 05:29:02,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:29:02,321 INFO L262 TraceCheckSpWp]: Trace formula consists of 681 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:29:02,324 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:29:02,347 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 05:29:02,347 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:29:02,347 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:29:02,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1647298232] [2023-12-25 05:29:02,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1647298232] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:29:02,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:29:02,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:29:02,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964630525] [2023-12-25 05:29:02,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:29:02,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:29:02,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:29:02,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:29:02,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:29:02,349 INFO L87 Difference]: Start difference. First operand 494 states and 839 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 05:29:02,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:29:02,417 INFO L93 Difference]: Finished difference Result 976 states and 1664 transitions. [2023-12-25 05:29:02,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:29:02,437 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 05:29:02,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:29:02,440 INFO L225 Difference]: With dead ends: 976 [2023-12-25 05:29:02,440 INFO L226 Difference]: Without dead ends: 494 [2023-12-25 05:29:02,442 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 05:29:02,442 INFO L413 NwaCegarLoop]: 819 mSDtfsCounter, 6 mSDsluCounter, 1633 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2452 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:29:02,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2452 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:29:02,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2023-12-25 05:29:02,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 494. [2023-12-25 05:29:02,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 388 states have (on average 1.7293814432989691) internal successors, (671), 407 states have internal predecessors, (671), 86 states have call successors, (86), 20 states have call predecessors, (86), 19 states have return successors, (81), 79 states have call predecessors, (81), 81 states have call successors, (81) [2023-12-25 05:29:02,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 838 transitions. [2023-12-25 05:29:02,455 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 838 transitions. Word has length 70 [2023-12-25 05:29:02,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:29:02,455 INFO L495 AbstractCegarLoop]: Abstraction has 494 states and 838 transitions. [2023-12-25 05:29:02,455 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 05:29:02,455 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 838 transitions. [2023-12-25 05:29:02,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-25 05:29:02,457 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:29:02,457 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 05:29:02,466 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 05:29:02,664 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 05:29:02,664 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:29:02,664 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:29:02,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1628545917, now seen corresponding path program 1 times [2023-12-25 05:29:02,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:29:02,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1264139288] [2023-12-25 05:29:02,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:29:02,665 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:29:02,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:29:02,666 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 05:29:02,668 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 05:29:02,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:29:02,891 INFO L262 TraceCheckSpWp]: Trace formula consists of 682 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:29:02,894 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:29:02,935 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 05:29:02,935 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:29:02,935 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:29:02,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1264139288] [2023-12-25 05:29:02,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1264139288] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:29:02,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:29:02,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:29:02,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042696802] [2023-12-25 05:29:02,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:29:02,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:29:02,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:29:02,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:29:02,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:29:02,937 INFO L87 Difference]: Start difference. First operand 494 states and 838 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 05:29:03,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:29:03,081 INFO L93 Difference]: Finished difference Result 942 states and 1596 transitions. [2023-12-25 05:29:03,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:29:03,082 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 05:29:03,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:29:03,089 INFO L225 Difference]: With dead ends: 942 [2023-12-25 05:29:03,089 INFO L226 Difference]: Without dead ends: 508 [2023-12-25 05:29:03,091 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 05:29:03,091 INFO L413 NwaCegarLoop]: 816 mSDtfsCounter, 115 mSDsluCounter, 3990 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 4806 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:29:03,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 4806 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:29:03,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2023-12-25 05:29:03,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 506. [2023-12-25 05:29:03,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 397 states have (on average 1.7254408060453401) internal successors, (685), 418 states have internal predecessors, (685), 87 states have call successors, (87), 20 states have call predecessors, (87), 21 states have return successors, (84), 80 states have call predecessors, (84), 82 states have call successors, (84) [2023-12-25 05:29:03,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 856 transitions. [2023-12-25 05:29:03,105 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 856 transitions. Word has length 71 [2023-12-25 05:29:03,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:29:03,106 INFO L495 AbstractCegarLoop]: Abstraction has 506 states and 856 transitions. [2023-12-25 05:29:03,106 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 05:29:03,106 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 856 transitions. [2023-12-25 05:29:03,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-25 05:29:03,112 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:29:03,112 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 05:29:03,136 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 05:29:03,318 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 05:29:03,319 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:29:03,319 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:29:03,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1729457884, now seen corresponding path program 1 times [2023-12-25 05:29:03,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:29:03,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [945540490] [2023-12-25 05:29:03,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:29:03,320 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 05:29:03,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:29:03,321 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 05:29:03,355 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 05:29:03,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:29:03,545 INFO L262 TraceCheckSpWp]: Trace formula consists of 682 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:29:03,548 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:29:03,568 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 05:29:03,569 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:29:03,569 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:29:03,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [945540490] [2023-12-25 05:29:03,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [945540490] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:29:03,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:29:03,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:29:03,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686642690] [2023-12-25 05:29:03,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:29:03,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:29:03,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:29:03,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:29:03,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:29:03,570 INFO L87 Difference]: Start difference. First operand 506 states and 856 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 05:29:03,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:29:03,631 INFO L93 Difference]: Finished difference Result 992 states and 1688 transitions. [2023-12-25 05:29:03,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:29:03,632 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 05:29:03,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:29:03,634 INFO L225 Difference]: With dead ends: 992 [2023-12-25 05:29:03,634 INFO L226 Difference]: Without dead ends: 488 [2023-12-25 05:29:03,636 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 05:29:03,636 INFO L413 NwaCegarLoop]: 820 mSDtfsCounter, 3 mSDsluCounter, 1633 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2453 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:29:03,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2453 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:29:03,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2023-12-25 05:29:03,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 488. [2023-12-25 05:29:03,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 382 states have (on average 1.719895287958115) internal successors, (657), 401 states have internal predecessors, (657), 86 states have call successors, (86), 20 states have call predecessors, (86), 19 states have return successors, (81), 79 states have call predecessors, (81), 81 states have call successors, (81) [2023-12-25 05:29:03,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 824 transitions. [2023-12-25 05:29:03,648 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 824 transitions. Word has length 71 [2023-12-25 05:29:03,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:29:03,648 INFO L495 AbstractCegarLoop]: Abstraction has 488 states and 824 transitions. [2023-12-25 05:29:03,648 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 05:29:03,648 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 824 transitions. [2023-12-25 05:29:03,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-25 05:29:03,650 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:29:03,650 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 05:29:03,656 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2023-12-25 05:29:03,856 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 05:29:03,857 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:29:03,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:29:03,857 INFO L85 PathProgramCache]: Analyzing trace with hash 2025094861, now seen corresponding path program 1 times [2023-12-25 05:29:03,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:29:03,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1719117515] [2023-12-25 05:29:03,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:29:03,858 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 05:29:03,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:29:03,859 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 05:29:03,859 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 05:29:04,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:29:04,123 INFO L262 TraceCheckSpWp]: Trace formula consists of 683 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:29:04,125 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:29:04,141 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 05:29:04,141 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:29:04,142 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:29:04,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1719117515] [2023-12-25 05:29:04,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1719117515] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:29:04,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:29:04,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:29:04,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094450288] [2023-12-25 05:29:04,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:29:04,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:29:04,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:29:04,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:29:04,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:29:04,143 INFO L87 Difference]: Start difference. First operand 488 states and 824 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 05:29:04,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:29:04,297 INFO L93 Difference]: Finished difference Result 930 states and 1574 transitions. [2023-12-25 05:29:04,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:29:04,298 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 05:29:04,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:29:04,302 INFO L225 Difference]: With dead ends: 930 [2023-12-25 05:29:04,302 INFO L226 Difference]: Without dead ends: 488 [2023-12-25 05:29:04,304 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 05:29:04,305 INFO L413 NwaCegarLoop]: 764 mSDtfsCounter, 88 mSDsluCounter, 1504 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 2268 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:29:04,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 2268 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:29:04,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2023-12-25 05:29:04,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 488. [2023-12-25 05:29:04,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 382 states have (on average 1.7094240837696335) internal successors, (653), 401 states have internal predecessors, (653), 86 states have call successors, (86), 20 states have call predecessors, (86), 19 states have return successors, (81), 79 states have call predecessors, (81), 81 states have call successors, (81) [2023-12-25 05:29:04,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 820 transitions. [2023-12-25 05:29:04,318 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 820 transitions. Word has length 72 [2023-12-25 05:29:04,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:29:04,318 INFO L495 AbstractCegarLoop]: Abstraction has 488 states and 820 transitions. [2023-12-25 05:29:04,319 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 05:29:04,319 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 820 transitions. [2023-12-25 05:29:04,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-25 05:29:04,321 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:29:04,321 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 05:29:04,347 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 05:29:04,530 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 05:29:04,530 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:29:04,531 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:29:04,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1705037216, now seen corresponding path program 1 times [2023-12-25 05:29:04,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:29:04,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [633926503] [2023-12-25 05:29:04,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:29:04,532 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 05:29:04,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:29:04,550 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 05:29:04,587 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 05:29:04,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:29:04,830 INFO L262 TraceCheckSpWp]: Trace formula consists of 684 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:29:04,832 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:29:04,854 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 05:29:04,854 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:29:04,854 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:29:04,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [633926503] [2023-12-25 05:29:04,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [633926503] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:29:04,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:29:04,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:29:04,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417129697] [2023-12-25 05:29:04,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:29:04,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:29:04,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:29:04,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:29:04,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:29:04,855 INFO L87 Difference]: Start difference. First operand 488 states and 820 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 05:29:04,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:29:04,974 INFO L93 Difference]: Finished difference Result 930 states and 1570 transitions. [2023-12-25 05:29:04,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:29:04,975 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 05:29:04,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:29:04,977 INFO L225 Difference]: With dead ends: 930 [2023-12-25 05:29:04,978 INFO L226 Difference]: Without dead ends: 488 [2023-12-25 05:29:04,979 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 05:29:04,979 INFO L413 NwaCegarLoop]: 764 mSDtfsCounter, 83 mSDsluCounter, 1504 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 2268 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:29:04,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 2268 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:29:04,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2023-12-25 05:29:04,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 488. [2023-12-25 05:29:04,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 382 states have (on average 1.698952879581152) internal successors, (649), 401 states have internal predecessors, (649), 86 states have call successors, (86), 20 states have call predecessors, (86), 19 states have return successors, (81), 79 states have call predecessors, (81), 81 states have call successors, (81) [2023-12-25 05:29:04,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 816 transitions. [2023-12-25 05:29:04,989 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 816 transitions. Word has length 73 [2023-12-25 05:29:04,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:29:04,990 INFO L495 AbstractCegarLoop]: Abstraction has 488 states and 816 transitions. [2023-12-25 05:29:04,990 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 05:29:04,990 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 816 transitions. [2023-12-25 05:29:04,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-25 05:29:04,991 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:29:04,991 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 05:29:05,009 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 05:29:05,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:29:05,199 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:29:05,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:29:05,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1882220722, now seen corresponding path program 1 times [2023-12-25 05:29:05,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:29:05,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [263473060] [2023-12-25 05:29:05,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:29:05,201 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:29:05,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:29:05,217 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 05:29:05,255 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 05:29:05,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:29:05,482 INFO L262 TraceCheckSpWp]: Trace formula consists of 685 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:29:05,495 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:29:05,514 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 05:29:05,514 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:29:05,514 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:29:05,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [263473060] [2023-12-25 05:29:05,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [263473060] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:29:05,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:29:05,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:29:05,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243931953] [2023-12-25 05:29:05,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:29:05,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:29:05,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:29:05,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:29:05,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:29:05,515 INFO L87 Difference]: Start difference. First operand 488 states and 816 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 05:29:05,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:29:05,648 INFO L93 Difference]: Finished difference Result 930 states and 1566 transitions. [2023-12-25 05:29:05,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:29:05,649 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 05:29:05,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:29:05,653 INFO L225 Difference]: With dead ends: 930 [2023-12-25 05:29:05,653 INFO L226 Difference]: Without dead ends: 488 [2023-12-25 05:29:05,655 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 05:29:05,655 INFO L413 NwaCegarLoop]: 764 mSDtfsCounter, 78 mSDsluCounter, 1504 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 2268 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:29:05,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 2268 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:29:05,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2023-12-25 05:29:05,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 488. [2023-12-25 05:29:05,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 382 states have (on average 1.6884816753926701) internal successors, (645), 401 states have internal predecessors, (645), 86 states have call successors, (86), 20 states have call predecessors, (86), 19 states have return successors, (81), 79 states have call predecessors, (81), 81 states have call successors, (81) [2023-12-25 05:29:05,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 812 transitions. [2023-12-25 05:29:05,671 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 812 transitions. Word has length 74 [2023-12-25 05:29:05,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:29:05,671 INFO L495 AbstractCegarLoop]: Abstraction has 488 states and 812 transitions. [2023-12-25 05:29:05,671 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 05:29:05,671 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 812 transitions. [2023-12-25 05:29:05,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-25 05:29:05,673 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:29:05,673 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 05:29:05,697 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 05:29:05,881 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 05:29:05,881 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:29:05,882 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:29:05,882 INFO L85 PathProgramCache]: Analyzing trace with hash 986916146, now seen corresponding path program 1 times [2023-12-25 05:29:05,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:29:05,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1510047077] [2023-12-25 05:29:05,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:29:05,883 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 05:29:05,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:29:05,907 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 05:29:05,908 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 05:29:06,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:29:06,139 INFO L262 TraceCheckSpWp]: Trace formula consists of 684 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:29:06,141 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:29:06,182 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 05:29:06,182 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:29:06,183 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:29:06,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1510047077] [2023-12-25 05:29:06,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1510047077] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:29:06,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:29:06,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:29:06,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785220474] [2023-12-25 05:29:06,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:29:06,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:29:06,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:29:06,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:29:06,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:29:06,184 INFO L87 Difference]: Start difference. First operand 488 states and 812 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 05:29:06,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:29:06,312 INFO L93 Difference]: Finished difference Result 930 states and 1562 transitions. [2023-12-25 05:29:06,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:29:06,312 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 05:29:06,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:29:06,315 INFO L225 Difference]: With dead ends: 930 [2023-12-25 05:29:06,315 INFO L226 Difference]: Without dead ends: 467 [2023-12-25 05:29:06,317 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 05:29:06,317 INFO L413 NwaCegarLoop]: 789 mSDtfsCounter, 108 mSDsluCounter, 3863 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 4652 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:29:06,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 4652 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:29:06,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2023-12-25 05:29:06,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 467. [2023-12-25 05:29:06,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 361 states have (on average 1.6925207756232687) internal successors, (611), 380 states have internal predecessors, (611), 86 states have call successors, (86), 20 states have call predecessors, (86), 19 states have return successors, (81), 79 states have call predecessors, (81), 81 states have call successors, (81) [2023-12-25 05:29:06,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 778 transitions. [2023-12-25 05:29:06,327 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 778 transitions. Word has length 74 [2023-12-25 05:29:06,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:29:06,327 INFO L495 AbstractCegarLoop]: Abstraction has 467 states and 778 transitions. [2023-12-25 05:29:06,327 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 05:29:06,327 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 778 transitions. [2023-12-25 05:29:06,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-25 05:29:06,329 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:29:06,329 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 05:29:06,335 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 05:29:06,535 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 05:29:06,535 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:29:06,536 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:29:06,536 INFO L85 PathProgramCache]: Analyzing trace with hash 380335141, now seen corresponding path program 1 times [2023-12-25 05:29:06,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:29:06,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [248378412] [2023-12-25 05:29:06,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:29:06,536 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:29:06,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:29:06,538 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 05:29:06,539 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 05:29:06,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:29:06,814 INFO L262 TraceCheckSpWp]: Trace formula consists of 686 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:29:06,818 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:29:06,849 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 05:29:06,849 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:29:06,849 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:29:06,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [248378412] [2023-12-25 05:29:06,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [248378412] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:29:06,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:29:06,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:29:06,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129522224] [2023-12-25 05:29:06,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:29:06,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:29:06,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:29:06,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:29:06,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:29:06,851 INFO L87 Difference]: Start difference. First operand 467 states and 778 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 05:29:06,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:29:06,935 INFO L93 Difference]: Finished difference Result 909 states and 1528 transitions. [2023-12-25 05:29:06,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:29:06,936 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 05:29:06,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:29:06,940 INFO L225 Difference]: With dead ends: 909 [2023-12-25 05:29:06,940 INFO L226 Difference]: Without dead ends: 467 [2023-12-25 05:29:06,944 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 05:29:06,945 INFO L413 NwaCegarLoop]: 757 mSDtfsCounter, 39 mSDsluCounter, 1497 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 2254 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:29:06,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 2254 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:29:06,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2023-12-25 05:29:06,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 467. [2023-12-25 05:29:06,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 361 states have (on average 1.6897506925207757) internal successors, (610), 380 states have internal predecessors, (610), 86 states have call successors, (86), 20 states have call predecessors, (86), 19 states have return successors, (81), 79 states have call predecessors, (81), 81 states have call successors, (81) [2023-12-25 05:29:06,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 777 transitions. [2023-12-25 05:29:06,962 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 777 transitions. Word has length 75 [2023-12-25 05:29:06,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:29:06,962 INFO L495 AbstractCegarLoop]: Abstraction has 467 states and 777 transitions. [2023-12-25 05:29:06,962 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 05:29:06,962 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 777 transitions. [2023-12-25 05:29:06,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-25 05:29:06,964 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:29:06,964 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 05:29:06,989 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 05:29:07,173 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 05:29:07,174 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:29:07,174 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:29:07,174 INFO L85 PathProgramCache]: Analyzing trace with hash 28790423, now seen corresponding path program 1 times [2023-12-25 05:29:07,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:29:07,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1414238307] [2023-12-25 05:29:07,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:29:07,175 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 05:29:07,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:29:07,177 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 05:29:07,177 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 05:29:07,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:29:07,400 INFO L262 TraceCheckSpWp]: Trace formula consists of 687 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:29:07,403 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:29:07,422 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 05:29:07,423 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:29:07,423 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:29:07,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1414238307] [2023-12-25 05:29:07,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1414238307] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:29:07,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:29:07,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:29:07,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913774032] [2023-12-25 05:29:07,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:29:07,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:29:07,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:29:07,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:29:07,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:29:07,424 INFO L87 Difference]: Start difference. First operand 467 states and 777 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 05:29:07,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:29:07,499 INFO L93 Difference]: Finished difference Result 909 states and 1527 transitions. [2023-12-25 05:29:07,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:29:07,499 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 05:29:07,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:29:07,501 INFO L225 Difference]: With dead ends: 909 [2023-12-25 05:29:07,502 INFO L226 Difference]: Without dead ends: 467 [2023-12-25 05:29:07,503 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 05:29:07,503 INFO L413 NwaCegarLoop]: 757 mSDtfsCounter, 37 mSDsluCounter, 1497 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 2254 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:29:07,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 2254 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:29:07,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2023-12-25 05:29:07,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 467. [2023-12-25 05:29:07,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 361 states have (on average 1.6869806094182827) internal successors, (609), 380 states have internal predecessors, (609), 86 states have call successors, (86), 20 states have call predecessors, (86), 19 states have return successors, (81), 79 states have call predecessors, (81), 81 states have call successors, (81) [2023-12-25 05:29:07,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 776 transitions. [2023-12-25 05:29:07,513 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 776 transitions. Word has length 76 [2023-12-25 05:29:07,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:29:07,513 INFO L495 AbstractCegarLoop]: Abstraction has 467 states and 776 transitions. [2023-12-25 05:29:07,513 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 05:29:07,513 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 776 transitions. [2023-12-25 05:29:07,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-25 05:29:07,514 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:29:07,514 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 05:29:07,528 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 05:29:07,721 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 05:29:07,722 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:29:07,722 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:29:07,722 INFO L85 PathProgramCache]: Analyzing trace with hash 978074090, now seen corresponding path program 1 times [2023-12-25 05:29:07,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:29:07,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [209475794] [2023-12-25 05:29:07,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:29:07,722 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 05:29:07,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:29:07,723 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 05:29:07,724 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-25 05:29:07,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:29:07,934 INFO L262 TraceCheckSpWp]: Trace formula consists of 688 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:29:07,936 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:29:07,995 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 05:29:07,995 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:29:07,996 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:29:07,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [209475794] [2023-12-25 05:29:07,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [209475794] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:29:07,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:29:07,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:29:07,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29754681] [2023-12-25 05:29:07,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:29:07,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:29:07,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:29:07,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:29:07,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:29:07,997 INFO L87 Difference]: Start difference. First operand 467 states and 776 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 05:29:08,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:29:08,126 INFO L93 Difference]: Finished difference Result 903 states and 1515 transitions. [2023-12-25 05:29:08,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:29:08,126 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 05:29:08,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:29:08,129 INFO L225 Difference]: With dead ends: 903 [2023-12-25 05:29:08,129 INFO L226 Difference]: Without dead ends: 467 [2023-12-25 05:29:08,130 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 05:29:08,131 INFO L413 NwaCegarLoop]: 750 mSDtfsCounter, 25 mSDsluCounter, 4482 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 5232 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:29:08,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 5232 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:29:08,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2023-12-25 05:29:08,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 467. [2023-12-25 05:29:08,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 361 states have (on average 1.6842105263157894) internal successors, (608), 380 states have internal predecessors, (608), 86 states have call successors, (86), 20 states have call predecessors, (86), 19 states have return successors, (81), 79 states have call predecessors, (81), 81 states have call successors, (81) [2023-12-25 05:29:08,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 775 transitions. [2023-12-25 05:29:08,140 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 775 transitions. Word has length 77 [2023-12-25 05:29:08,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:29:08,141 INFO L495 AbstractCegarLoop]: Abstraction has 467 states and 775 transitions. [2023-12-25 05:29:08,141 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 05:29:08,141 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 775 transitions. [2023-12-25 05:29:08,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-25 05:29:08,142 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:29:08,142 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 05:29:08,149 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 05:29:08,349 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 05:29:08,350 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:29:08,350 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:29:08,350 INFO L85 PathProgramCache]: Analyzing trace with hash -2006052532, now seen corresponding path program 1 times [2023-12-25 05:29:08,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:29:08,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [633812226] [2023-12-25 05:29:08,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:29:08,350 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 05:29:08,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:29:08,352 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 05:29:08,373 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 05:29:08,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:29:08,637 INFO L262 TraceCheckSpWp]: Trace formula consists of 689 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-25 05:29:08,640 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:29:08,849 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 05:29:08,850 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:29:08,850 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:29:08,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [633812226] [2023-12-25 05:29:08,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [633812226] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:29:08,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:29:08,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 05:29:08,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730080952] [2023-12-25 05:29:08,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:29:08,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 05:29:08,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:29:08,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 05:29:08,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-12-25 05:29:08,852 INFO L87 Difference]: Start difference. First operand 467 states and 775 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 05:29:10,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:29:10,462 INFO L93 Difference]: Finished difference Result 901 states and 1529 transitions. [2023-12-25 05:29:10,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:29:10,463 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 05:29:10,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:29:10,466 INFO L225 Difference]: With dead ends: 901 [2023-12-25 05:29:10,467 INFO L226 Difference]: Without dead ends: 472 [2023-12-25 05:29:10,469 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 05:29:10,470 INFO L413 NwaCegarLoop]: 357 mSDtfsCounter, 1193 mSDsluCounter, 1118 mSDsCounter, 0 mSdLazyCounter, 2403 mSolverCounterSat, 354 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1193 SdHoareTripleChecker+Valid, 1475 SdHoareTripleChecker+Invalid, 2757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 354 IncrementalHoareTripleChecker+Valid, 2403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:29:10,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1193 Valid, 1475 Invalid, 2757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [354 Valid, 2403 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-25 05:29:10,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2023-12-25 05:29:10,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 471. [2023-12-25 05:29:10,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 364 states have (on average 1.6785714285714286) internal successors, (611), 383 states have internal predecessors, (611), 86 states have call successors, (86), 20 states have call predecessors, (86), 20 states have return successors, (97), 80 states have call predecessors, (97), 81 states have call successors, (97) [2023-12-25 05:29:10,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 794 transitions. [2023-12-25 05:29:10,491 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 794 transitions. Word has length 78 [2023-12-25 05:29:10,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:29:10,491 INFO L495 AbstractCegarLoop]: Abstraction has 471 states and 794 transitions. [2023-12-25 05:29:10,491 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 05:29:10,491 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 794 transitions. [2023-12-25 05:29:10,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-25 05:29:10,493 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:29:10,494 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 05:29:10,513 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2023-12-25 05:29:10,702 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 05:29:10,702 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:29:10,703 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:29:10,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1643809675, now seen corresponding path program 1 times [2023-12-25 05:29:10,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:29:10,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1854497189] [2023-12-25 05:29:10,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:29:10,703 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:29:10,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:29:10,721 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 05:29:10,727 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 05:29:11,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:29:11,021 INFO L262 TraceCheckSpWp]: Trace formula consists of 690 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:29:11,023 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:29:11,152 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 05:29:11,152 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:29:11,152 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:29:11,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1854497189] [2023-12-25 05:29:11,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1854497189] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:29:11,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:29:11,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:29:11,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865173510] [2023-12-25 05:29:11,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:29:11,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:29:11,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:29:11,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:29:11,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:29:11,153 INFO L87 Difference]: Start difference. First operand 471 states and 794 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 05:29:14,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:29:14,412 INFO L93 Difference]: Finished difference Result 1691 states and 2938 transitions. [2023-12-25 05:29:14,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-25 05:29:14,414 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 05:29:14,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:29:14,423 INFO L225 Difference]: With dead ends: 1691 [2023-12-25 05:29:14,424 INFO L226 Difference]: Without dead ends: 1258 [2023-12-25 05:29:14,428 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2023-12-25 05:29:14,428 INFO L413 NwaCegarLoop]: 570 mSDtfsCounter, 2125 mSDsluCounter, 1860 mSDsCounter, 0 mSdLazyCounter, 4345 mSolverCounterSat, 555 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2191 SdHoareTripleChecker+Valid, 2430 SdHoareTripleChecker+Invalid, 4900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 555 IncrementalHoareTripleChecker+Valid, 4345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:29:14,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2191 Valid, 2430 Invalid, 4900 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [555 Valid, 4345 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-12-25 05:29:14,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1258 states. [2023-12-25 05:29:14,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1258 to 1204. [2023-12-25 05:29:14,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1204 states, 929 states have (on average 1.6867599569429494) internal successors, (1567), 977 states have internal predecessors, (1567), 223 states have call successors, (223), 51 states have call predecessors, (223), 51 states have return successors, (238), 212 states have call predecessors, (238), 218 states have call successors, (238) [2023-12-25 05:29:14,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1204 states to 1204 states and 2028 transitions. [2023-12-25 05:29:14,502 INFO L78 Accepts]: Start accepts. Automaton has 1204 states and 2028 transitions. Word has length 79 [2023-12-25 05:29:14,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:29:14,502 INFO L495 AbstractCegarLoop]: Abstraction has 1204 states and 2028 transitions. [2023-12-25 05:29:14,502 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 05:29:14,502 INFO L276 IsEmpty]: Start isEmpty. Operand 1204 states and 2028 transitions. [2023-12-25 05:29:14,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-25 05:29:14,504 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:29:14,504 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 05:29:14,514 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 05:29:14,711 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 05:29:14,712 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:29:14,712 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:29:14,713 INFO L85 PathProgramCache]: Analyzing trace with hash 838663131, now seen corresponding path program 1 times [2023-12-25 05:29:14,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:29:14,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [666084192] [2023-12-25 05:29:14,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:29:14,713 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:29:14,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:29:14,714 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 05:29:14,718 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 05:29:14,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:29:14,955 INFO L262 TraceCheckSpWp]: Trace formula consists of 696 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:29:14,957 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:29:15,111 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 05:29:15,111 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:29:15,111 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:29:15,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [666084192] [2023-12-25 05:29:15,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [666084192] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:29:15,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:29:15,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:29:15,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654216111] [2023-12-25 05:29:15,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:29:15,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:29:15,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:29:15,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:29:15,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:29:15,112 INFO L87 Difference]: Start difference. First operand 1204 states and 2028 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 05:29:19,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:29:19,009 INFO L93 Difference]: Finished difference Result 4728 states and 8205 transitions. [2023-12-25 05:29:19,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-25 05:29:19,011 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 05:29:19,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:29:19,034 INFO L225 Difference]: With dead ends: 4728 [2023-12-25 05:29:19,034 INFO L226 Difference]: Without dead ends: 3562 [2023-12-25 05:29:19,041 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 05:29:19,041 INFO L413 NwaCegarLoop]: 652 mSDtfsCounter, 3370 mSDsluCounter, 1374 mSDsCounter, 0 mSdLazyCounter, 4703 mSolverCounterSat, 1023 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3471 SdHoareTripleChecker+Valid, 2026 SdHoareTripleChecker+Invalid, 5726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1023 IncrementalHoareTripleChecker+Valid, 4703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:29:19,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3471 Valid, 2026 Invalid, 5726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1023 Valid, 4703 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-12-25 05:29:19,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3562 states. [2023-12-25 05:29:19,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3562 to 2650. [2023-12-25 05:29:19,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2650 states, 2005 states have (on average 1.6788029925187034) internal successors, (3366), 2118 states have internal predecessors, (3366), 539 states have call successors, (539), 97 states have call predecessors, (539), 105 states have return successors, (630), 523 states have call predecessors, (630), 534 states have call successors, (630) [2023-12-25 05:29:19,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2650 states to 2650 states and 4535 transitions. [2023-12-25 05:29:19,210 INFO L78 Accepts]: Start accepts. Automaton has 2650 states and 4535 transitions. Word has length 81 [2023-12-25 05:29:19,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:29:19,210 INFO L495 AbstractCegarLoop]: Abstraction has 2650 states and 4535 transitions. [2023-12-25 05:29:19,210 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 05:29:19,210 INFO L276 IsEmpty]: Start isEmpty. Operand 2650 states and 4535 transitions. [2023-12-25 05:29:19,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-25 05:29:19,212 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:29:19,212 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 05:29:19,220 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 05:29:19,418 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 05:29:19,418 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:29:19,418 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:29:19,418 INFO L85 PathProgramCache]: Analyzing trace with hash 444296345, now seen corresponding path program 1 times [2023-12-25 05:29:19,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:29:19,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2016465220] [2023-12-25 05:29:19,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:29:19,419 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 05:29:19,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:29:19,420 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 05:29:19,422 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 05:29:19,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:29:19,630 INFO L262 TraceCheckSpWp]: Trace formula consists of 696 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:29:19,633 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:29:19,725 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 05:29:19,725 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:29:19,725 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:29:19,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2016465220] [2023-12-25 05:29:19,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2016465220] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:29:19,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:29:19,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:29:19,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641475099] [2023-12-25 05:29:19,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:29:19,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:29:19,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:29:19,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:29:19,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:29:19,726 INFO L87 Difference]: Start difference. First operand 2650 states and 4535 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 05:29:22,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:29:22,495 INFO L93 Difference]: Finished difference Result 7240 states and 12491 transitions. [2023-12-25 05:29:22,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-25 05:29:22,496 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 05:29:22,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:29:22,526 INFO L225 Difference]: With dead ends: 7240 [2023-12-25 05:29:22,526 INFO L226 Difference]: Without dead ends: 5314 [2023-12-25 05:29:22,534 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 05:29:22,534 INFO L413 NwaCegarLoop]: 326 mSDtfsCounter, 2461 mSDsluCounter, 1252 mSDsCounter, 0 mSdLazyCounter, 3080 mSolverCounterSat, 508 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2532 SdHoareTripleChecker+Valid, 1578 SdHoareTripleChecker+Invalid, 3588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 508 IncrementalHoareTripleChecker+Valid, 3080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-25 05:29:22,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2532 Valid, 1578 Invalid, 3588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [508 Valid, 3080 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-25 05:29:22,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5314 states. [2023-12-25 05:29:22,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5314 to 4961. [2023-12-25 05:29:22,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4961 states, 3770 states have (on average 1.677188328912467) internal successors, (6323), 3982 states have internal predecessors, (6323), 977 states have call successors, (977), 177 states have call predecessors, (977), 213 states have return successors, (1219), 950 states have call predecessors, (1219), 972 states have call successors, (1219) [2023-12-25 05:29:22,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4961 states to 4961 states and 8519 transitions. [2023-12-25 05:29:22,918 INFO L78 Accepts]: Start accepts. Automaton has 4961 states and 8519 transitions. Word has length 81 [2023-12-25 05:29:22,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:29:22,918 INFO L495 AbstractCegarLoop]: Abstraction has 4961 states and 8519 transitions. [2023-12-25 05:29:22,919 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 05:29:22,919 INFO L276 IsEmpty]: Start isEmpty. Operand 4961 states and 8519 transitions. [2023-12-25 05:29:22,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-25 05:29:22,920 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:29:22,920 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 05:29:22,929 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2023-12-25 05:29:23,126 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 05:29:23,127 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:29:23,127 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:29:23,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1521404757, now seen corresponding path program 1 times [2023-12-25 05:29:23,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:29:23,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [520919922] [2023-12-25 05:29:23,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:29:23,128 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:29:23,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:29:23,129 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 05:29:23,130 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 05:29:23,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:29:23,393 INFO L262 TraceCheckSpWp]: Trace formula consists of 704 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-25 05:29:23,432 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:29:23,608 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 05:29:23,608 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:29:23,609 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:29:23,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [520919922] [2023-12-25 05:29:23,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [520919922] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:29:23,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:29:23,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 05:29:23,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407683724] [2023-12-25 05:29:23,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:29:23,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 05:29:23,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:29:23,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 05:29:23,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-25 05:29:23,610 INFO L87 Difference]: Start difference. First operand 4961 states and 8519 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 05:29:27,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:29:27,313 INFO L93 Difference]: Finished difference Result 10173 states and 17467 transitions. [2023-12-25 05:29:27,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-25 05:29:27,315 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 05:29:27,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:29:27,351 INFO L225 Difference]: With dead ends: 10173 [2023-12-25 05:29:27,352 INFO L226 Difference]: Without dead ends: 5936 [2023-12-25 05:29:27,366 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 05:29:27,367 INFO L413 NwaCegarLoop]: 417 mSDtfsCounter, 1846 mSDsluCounter, 2013 mSDsCounter, 0 mSdLazyCounter, 4643 mSolverCounterSat, 435 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1915 SdHoareTripleChecker+Valid, 2430 SdHoareTripleChecker+Invalid, 5078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 435 IncrementalHoareTripleChecker+Valid, 4643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:29:27,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1915 Valid, 2430 Invalid, 5078 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [435 Valid, 4643 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-12-25 05:29:27,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5936 states. [2023-12-25 05:29:27,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5936 to 5451. [2023-12-25 05:29:27,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5451 states, 4124 states have (on average 1.6505819592628517) internal successors, (6807), 4366 states have internal predecessors, (6807), 1061 states have call successors, (1061), 217 states have call predecessors, (1061), 265 states have return successors, (1381), 1016 states have call predecessors, (1381), 1056 states have call successors, (1381) [2023-12-25 05:29:27,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5451 states to 5451 states and 9249 transitions. [2023-12-25 05:29:27,759 INFO L78 Accepts]: Start accepts. Automaton has 5451 states and 9249 transitions. Word has length 85 [2023-12-25 05:29:27,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:29:27,759 INFO L495 AbstractCegarLoop]: Abstraction has 5451 states and 9249 transitions. [2023-12-25 05:29:27,759 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 05:29:27,759 INFO L276 IsEmpty]: Start isEmpty. Operand 5451 states and 9249 transitions. [2023-12-25 05:29:27,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-25 05:29:27,761 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:29:27,761 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 05:29:27,768 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2023-12-25 05:29:27,968 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 05:29:27,968 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:29:27,969 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:29:27,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1704594152, now seen corresponding path program 1 times [2023-12-25 05:29:27,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:29:27,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1740699365] [2023-12-25 05:29:27,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:29:27,969 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:29:27,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:29:27,971 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 05:29:27,980 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 05:29:28,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:29:28,194 INFO L262 TraceCheckSpWp]: Trace formula consists of 711 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:29:28,197 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:29:28,222 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 05:29:28,222 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:29:28,222 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:29:28,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1740699365] [2023-12-25 05:29:28,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1740699365] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:29:28,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:29:28,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:29:28,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391475000] [2023-12-25 05:29:28,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:29:28,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:29:28,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:29:28,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:29:28,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:29:28,223 INFO L87 Difference]: Start difference. First operand 5451 states and 9249 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 05:29:28,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:29:28,588 INFO L93 Difference]: Finished difference Result 10722 states and 18327 transitions. [2023-12-25 05:29:28,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:29:28,589 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 05:29:28,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:29:28,611 INFO L225 Difference]: With dead ends: 10722 [2023-12-25 05:29:28,611 INFO L226 Difference]: Without dead ends: 5451 [2023-12-25 05:29:28,624 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 05:29:28,625 INFO L413 NwaCegarLoop]: 796 mSDtfsCounter, 234 mSDsluCounter, 1338 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 2134 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:29:28,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 2134 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:29:28,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5451 states. [2023-12-25 05:29:28,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5451 to 5451. [2023-12-25 05:29:28,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5451 states, 4124 states have (on average 1.6243937924345295) internal successors, (6699), 4366 states have internal predecessors, (6699), 1061 states have call successors, (1061), 217 states have call predecessors, (1061), 265 states have return successors, (1381), 1016 states have call predecessors, (1381), 1056 states have call successors, (1381) [2023-12-25 05:29:28,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5451 states to 5451 states and 9141 transitions. [2023-12-25 05:29:28,985 INFO L78 Accepts]: Start accepts. Automaton has 5451 states and 9141 transitions. Word has length 92 [2023-12-25 05:29:28,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:29:28,985 INFO L495 AbstractCegarLoop]: Abstraction has 5451 states and 9141 transitions. [2023-12-25 05:29:28,985 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 05:29:28,985 INFO L276 IsEmpty]: Start isEmpty. Operand 5451 states and 9141 transitions. [2023-12-25 05:29:28,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-25 05:29:28,987 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:29:28,987 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 05:29:29,007 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2023-12-25 05:29:29,196 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 05:29:29,196 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:29:29,196 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:29:29,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1512525648, now seen corresponding path program 1 times [2023-12-25 05:29:29,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:29:29,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1976503263] [2023-12-25 05:29:29,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:29:29,197 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 05:29:29,197 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:29:29,198 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 05:29:29,199 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 05:29:29,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:29:29,443 INFO L262 TraceCheckSpWp]: Trace formula consists of 720 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:29:29,446 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:29:29,547 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 05:29:29,547 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:29:29,547 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:29:29,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1976503263] [2023-12-25 05:29:29,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1976503263] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:29:29,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:29:29,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:29:29,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480235815] [2023-12-25 05:29:29,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:29:29,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:29:29,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:29:29,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:29:29,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:29:29,549 INFO L87 Difference]: Start difference. First operand 5451 states and 9141 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 05:29:31,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:29:31,939 INFO L93 Difference]: Finished difference Result 10670 states and 17933 transitions. [2023-12-25 05:29:31,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-25 05:29:31,942 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 05:29:31,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:29:31,975 INFO L225 Difference]: With dead ends: 10670 [2023-12-25 05:29:31,975 INFO L226 Difference]: Without dead ends: 6056 [2023-12-25 05:29:32,035 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 05:29:32,036 INFO L413 NwaCegarLoop]: 344 mSDtfsCounter, 1901 mSDsluCounter, 1163 mSDsCounter, 0 mSdLazyCounter, 2879 mSolverCounterSat, 441 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1975 SdHoareTripleChecker+Valid, 1507 SdHoareTripleChecker+Invalid, 3320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 441 IncrementalHoareTripleChecker+Valid, 2879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-25 05:29:32,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1975 Valid, 1507 Invalid, 3320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [441 Valid, 2879 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-25 05:29:32,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6056 states. [2023-12-25 05:29:32,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6056 to 5737. [2023-12-25 05:29:32,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5737 states, 4336 states have (on average 1.6077029520295203) internal successors, (6971), 4600 states have internal predecessors, (6971), 1087 states have call successors, (1087), 245 states have call predecessors, (1087), 313 states have return successors, (1481), 1040 states have call predecessors, (1481), 1082 states have call successors, (1481) [2023-12-25 05:29:32,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5737 states to 5737 states and 9539 transitions. [2023-12-25 05:29:32,360 INFO L78 Accepts]: Start accepts. Automaton has 5737 states and 9539 transitions. Word has length 97 [2023-12-25 05:29:32,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:29:32,360 INFO L495 AbstractCegarLoop]: Abstraction has 5737 states and 9539 transitions. [2023-12-25 05:29:32,360 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 05:29:32,361 INFO L276 IsEmpty]: Start isEmpty. Operand 5737 states and 9539 transitions. [2023-12-25 05:29:32,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-25 05:29:32,362 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:29:32,362 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 05:29:32,369 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Ended with exit code 0 [2023-12-25 05:29:32,569 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 05:29:32,569 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:29:32,570 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:29:32,570 INFO L85 PathProgramCache]: Analyzing trace with hash -268687248, now seen corresponding path program 1 times [2023-12-25 05:29:32,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:29:32,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [619325147] [2023-12-25 05:29:32,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:29:32,570 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 05:29:32,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:29:32,571 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 05:29:32,578 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 05:29:32,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:29:32,823 INFO L262 TraceCheckSpWp]: Trace formula consists of 728 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-25 05:29:32,826 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:29:33,000 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 05:29:33,000 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:29:33,000 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:29:33,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [619325147] [2023-12-25 05:29:33,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [619325147] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:29:33,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:29:33,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:29:33,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531810682] [2023-12-25 05:29:33,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:29:33,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:29:33,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:29:33,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:29:33,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:29:33,002 INFO L87 Difference]: Start difference. First operand 5737 states and 9539 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 05:29:36,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:29:36,149 INFO L93 Difference]: Finished difference Result 11064 states and 18411 transitions. [2023-12-25 05:29:36,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-25 05:29:36,151 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 05:29:36,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:29:36,187 INFO L225 Difference]: With dead ends: 11064 [2023-12-25 05:29:36,187 INFO L226 Difference]: Without dead ends: 6163 [2023-12-25 05:29:36,202 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 05:29:36,203 INFO L413 NwaCegarLoop]: 395 mSDtfsCounter, 1509 mSDsluCounter, 1591 mSDsCounter, 0 mSdLazyCounter, 3754 mSolverCounterSat, 339 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1578 SdHoareTripleChecker+Valid, 1986 SdHoareTripleChecker+Invalid, 4093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 339 IncrementalHoareTripleChecker+Valid, 3754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:29:36,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1578 Valid, 1986 Invalid, 4093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [339 Valid, 3754 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-25 05:29:36,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6163 states. [2023-12-25 05:29:36,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6163 to 5678. [2023-12-25 05:29:36,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5678 states, 4293 states have (on average 1.6054041462846493) internal successors, (6892), 4550 states have internal predecessors, (6892), 1077 states have call successors, (1077), 245 states have call predecessors, (1077), 307 states have return successors, (1432), 1031 states have call predecessors, (1432), 1072 states have call successors, (1432) [2023-12-25 05:29:36,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5678 states to 5678 states and 9401 transitions. [2023-12-25 05:29:36,663 INFO L78 Accepts]: Start accepts. Automaton has 5678 states and 9401 transitions. Word has length 101 [2023-12-25 05:29:36,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:29:36,663 INFO L495 AbstractCegarLoop]: Abstraction has 5678 states and 9401 transitions. [2023-12-25 05:29:36,663 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 05:29:36,664 INFO L276 IsEmpty]: Start isEmpty. Operand 5678 states and 9401 transitions. [2023-12-25 05:29:36,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-25 05:29:36,665 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:29:36,665 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 05:29:36,673 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Ended with exit code 0 [2023-12-25 05:29:36,872 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 05:29:36,873 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:29:36,873 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:29:36,873 INFO L85 PathProgramCache]: Analyzing trace with hash 154014578, now seen corresponding path program 1 times [2023-12-25 05:29:36,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:29:36,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1741824105] [2023-12-25 05:29:36,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:29:36,874 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 05:29:36,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:29:36,875 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 05:29:36,875 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 05:29:37,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:29:37,096 INFO L262 TraceCheckSpWp]: Trace formula consists of 727 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-25 05:29:37,099 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:29:37,242 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 05:29:37,242 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:29:37,243 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:29:37,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1741824105] [2023-12-25 05:29:37,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1741824105] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:29:37,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:29:37,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:29:37,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517790827] [2023-12-25 05:29:37,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:29:37,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:29:37,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:29:37,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:29:37,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:29:37,244 INFO L87 Difference]: Start difference. First operand 5678 states and 9401 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 05:29:39,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:29:39,860 INFO L93 Difference]: Finished difference Result 12545 states and 20947 transitions. [2023-12-25 05:29:39,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-25 05:29:39,862 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 05:29:39,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:29:39,911 INFO L225 Difference]: With dead ends: 12545 [2023-12-25 05:29:39,911 INFO L226 Difference]: Without dead ends: 7695 [2023-12-25 05:29:39,931 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 05:29:39,932 INFO L413 NwaCegarLoop]: 375 mSDtfsCounter, 1590 mSDsluCounter, 907 mSDsCounter, 0 mSdLazyCounter, 2635 mSolverCounterSat, 374 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1666 SdHoareTripleChecker+Valid, 1282 SdHoareTripleChecker+Invalid, 3009 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 374 IncrementalHoareTripleChecker+Valid, 2635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:29:39,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1666 Valid, 1282 Invalid, 3009 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [374 Valid, 2635 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-25 05:29:39,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7695 states. [2023-12-25 05:29:40,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7695 to 7420. [2023-12-25 05:29:40,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7420 states, 5587 states have (on average 1.6065867191695007) internal successors, (8976), 5930 states have internal predecessors, (8976), 1447 states have call successors, (1447), 327 states have call predecessors, (1447), 385 states have return successors, (1926), 1367 states have call predecessors, (1926), 1442 states have call successors, (1926) [2023-12-25 05:29:40,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7420 states to 7420 states and 12349 transitions. [2023-12-25 05:29:40,440 INFO L78 Accepts]: Start accepts. Automaton has 7420 states and 12349 transitions. Word has length 101 [2023-12-25 05:29:40,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:29:40,440 INFO L495 AbstractCegarLoop]: Abstraction has 7420 states and 12349 transitions. [2023-12-25 05:29:40,440 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 05:29:40,440 INFO L276 IsEmpty]: Start isEmpty. Operand 7420 states and 12349 transitions. [2023-12-25 05:29:40,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-25 05:29:40,442 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:29:40,442 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 05:29:40,450 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2023-12-25 05:29:40,648 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 05:29:40,648 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:29:40,648 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:29:40,649 INFO L85 PathProgramCache]: Analyzing trace with hash -133892333, now seen corresponding path program 1 times [2023-12-25 05:29:40,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:29:40,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [94358965] [2023-12-25 05:29:40,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:29:40,650 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 05:29:40,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:29:40,651 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 05:29:40,685 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 05:29:40,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:29:40,891 INFO L262 TraceCheckSpWp]: Trace formula consists of 728 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:29:40,893 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:29:41,007 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 05:29:41,008 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:29:41,008 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:29:41,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [94358965] [2023-12-25 05:29:41,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [94358965] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:29:41,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:29:41,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:29:41,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953259301] [2023-12-25 05:29:41,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:29:41,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:29:41,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:29:41,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:29:41,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:29:41,010 INFO L87 Difference]: Start difference. First operand 7420 states and 12349 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 05:29:41,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:29:41,803 INFO L93 Difference]: Finished difference Result 7511 states and 12504 transitions. [2023-12-25 05:29:41,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:29:41,804 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 05:29:41,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:29:41,853 INFO L225 Difference]: With dead ends: 7511 [2023-12-25 05:29:41,853 INFO L226 Difference]: Without dead ends: 7496 [2023-12-25 05:29:41,861 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 05:29:41,861 INFO L413 NwaCegarLoop]: 745 mSDtfsCounter, 708 mSDsluCounter, 1164 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 716 SdHoareTripleChecker+Valid, 1909 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 05:29:41,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [716 Valid, 1909 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 05:29:41,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7496 states. [2023-12-25 05:29:42,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7496 to 7426. [2023-12-25 05:29:42,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7426 states, 5593 states have (on average 1.6059359914178437) internal successors, (8982), 5936 states have internal predecessors, (8982), 1447 states have call successors, (1447), 327 states have call predecessors, (1447), 385 states have return successors, (1926), 1367 states have call predecessors, (1926), 1442 states have call successors, (1926) [2023-12-25 05:29:42,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7426 states to 7426 states and 12355 transitions. [2023-12-25 05:29:42,479 INFO L78 Accepts]: Start accepts. Automaton has 7426 states and 12355 transitions. Word has length 102 [2023-12-25 05:29:42,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:29:42,480 INFO L495 AbstractCegarLoop]: Abstraction has 7426 states and 12355 transitions. [2023-12-25 05:29:42,480 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 05:29:42,480 INFO L276 IsEmpty]: Start isEmpty. Operand 7426 states and 12355 transitions. [2023-12-25 05:29:42,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-25 05:29:42,483 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:29:42,483 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 05:29:42,507 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 05:29:42,693 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 05:29:42,693 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:29:42,693 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:29:42,693 INFO L85 PathProgramCache]: Analyzing trace with hash 799861545, now seen corresponding path program 1 times [2023-12-25 05:29:42,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:29:42,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1591437065] [2023-12-25 05:29:42,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:29:42,694 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 05:29:42,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:29:42,709 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 05:29:42,743 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 05:29:42,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:29:42,947 INFO L262 TraceCheckSpWp]: Trace formula consists of 736 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 05:29:42,949 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:29:42,963 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 05:29:42,963 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:29:42,964 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:29:42,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1591437065] [2023-12-25 05:29:42,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1591437065] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:29:42,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:29:42,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:29:42,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192267085] [2023-12-25 05:29:42,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:29:42,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:29:42,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:29:42,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:29:42,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:29:42,965 INFO L87 Difference]: Start difference. First operand 7426 states and 12355 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 05:29:43,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:29:43,454 INFO L93 Difference]: Finished difference Result 7447 states and 12382 transitions. [2023-12-25 05:29:43,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:29:43,455 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 05:29:43,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:29:43,487 INFO L225 Difference]: With dead ends: 7447 [2023-12-25 05:29:43,487 INFO L226 Difference]: Without dead ends: 7432 [2023-12-25 05:29:43,494 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 05:29:43,495 INFO L413 NwaCegarLoop]: 755 mSDtfsCounter, 34 mSDsluCounter, 2224 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 2979 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:29:43,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 2979 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:29:43,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7432 states. [2023-12-25 05:29:43,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7432 to 7426. [2023-12-25 05:29:43,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7426 states, 5593 states have (on average 1.6045056320400501) internal successors, (8974), 5936 states have internal predecessors, (8974), 1447 states have call successors, (1447), 327 states have call predecessors, (1447), 385 states have return successors, (1926), 1367 states have call predecessors, (1926), 1442 states have call successors, (1926) [2023-12-25 05:29:44,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7426 states to 7426 states and 12347 transitions. [2023-12-25 05:29:44,046 INFO L78 Accepts]: Start accepts. Automaton has 7426 states and 12347 transitions. Word has length 107 [2023-12-25 05:29:44,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:29:44,047 INFO L495 AbstractCegarLoop]: Abstraction has 7426 states and 12347 transitions. [2023-12-25 05:29:44,047 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 05:29:44,047 INFO L276 IsEmpty]: Start isEmpty. Operand 7426 states and 12347 transitions. [2023-12-25 05:29:44,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-25 05:29:44,050 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:29:44,050 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 05:29:44,057 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 (27)] Ended with exit code 0 [2023-12-25 05:29:44,251 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 05:29:44,251 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:29:44,251 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:29:44,251 INFO L85 PathProgramCache]: Analyzing trace with hash 975944008, now seen corresponding path program 1 times [2023-12-25 05:29:44,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:29:44,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1104948037] [2023-12-25 05:29:44,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:29:44,252 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 05:29:44,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:29:44,259 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 05:29:44,260 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2023-12-25 05:29:44,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:29:44,512 INFO L262 TraceCheckSpWp]: Trace formula consists of 752 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-25 05:29:44,515 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:29:44,660 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 05:29:44,660 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:29:44,660 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:29:44,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1104948037] [2023-12-25 05:29:44,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1104948037] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:29:44,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:29:44,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:29:44,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190596561] [2023-12-25 05:29:44,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:29:44,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:29:44,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:29:44,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:29:44,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:29:44,662 INFO L87 Difference]: Start difference. First operand 7426 states and 12347 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 05:29:46,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:29:46,812 INFO L93 Difference]: Finished difference Result 14837 states and 24742 transitions. [2023-12-25 05:29:46,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:29:46,813 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 05:29:46,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:29:46,858 INFO L225 Difference]: With dead ends: 14837 [2023-12-25 05:29:46,858 INFO L226 Difference]: Without dead ends: 7458 [2023-12-25 05:29:46,883 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 05:29:46,884 INFO L413 NwaCegarLoop]: 354 mSDtfsCounter, 1166 mSDsluCounter, 1094 mSDsCounter, 0 mSdLazyCounter, 2392 mSolverCounterSat, 321 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1166 SdHoareTripleChecker+Valid, 1448 SdHoareTripleChecker+Invalid, 2713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 321 IncrementalHoareTripleChecker+Valid, 2392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:29:46,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1166 Valid, 1448 Invalid, 2713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [321 Valid, 2392 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-25 05:29:46,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7458 states. [2023-12-25 05:29:47,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7458 to 7426. [2023-12-25 05:29:47,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7426 states, 5593 states have (on average 1.6030752726622564) internal successors, (8966), 5936 states have internal predecessors, (8966), 1447 states have call successors, (1447), 327 states have call predecessors, (1447), 385 states have return successors, (1926), 1367 states have call predecessors, (1926), 1442 states have call successors, (1926) [2023-12-25 05:29:47,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7426 states to 7426 states and 12339 transitions. [2023-12-25 05:29:47,556 INFO L78 Accepts]: Start accepts. Automaton has 7426 states and 12339 transitions. Word has length 116 [2023-12-25 05:29:47,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:29:47,557 INFO L495 AbstractCegarLoop]: Abstraction has 7426 states and 12339 transitions. [2023-12-25 05:29:47,557 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 05:29:47,557 INFO L276 IsEmpty]: Start isEmpty. Operand 7426 states and 12339 transitions. [2023-12-25 05:29:47,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-25 05:29:47,560 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:29:47,560 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 05:29:47,568 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 05:29:47,760 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 05:29:47,761 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:29:47,761 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:29:47,761 INFO L85 PathProgramCache]: Analyzing trace with hash 223206493, now seen corresponding path program 1 times [2023-12-25 05:29:47,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:29:47,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1368305947] [2023-12-25 05:29:47,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:29:47,762 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 05:29:47,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:29:47,763 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 05:29:47,764 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 05:29:47,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:29:47,996 INFO L262 TraceCheckSpWp]: Trace formula consists of 765 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 05:29:47,998 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:29:48,009 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 05:29:48,009 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:29:48,009 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:29:48,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1368305947] [2023-12-25 05:29:48,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1368305947] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:29:48,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:29:48,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:29:48,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979787002] [2023-12-25 05:29:48,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:29:48,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:29:48,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:29:48,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:29:48,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:29:48,011 INFO L87 Difference]: Start difference. First operand 7426 states and 12339 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 05:29:48,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:29:48,523 INFO L93 Difference]: Finished difference Result 7563 states and 12556 transitions. [2023-12-25 05:29:48,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:29:48,524 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 05:29:48,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:29:48,550 INFO L225 Difference]: With dead ends: 7563 [2023-12-25 05:29:48,550 INFO L226 Difference]: Without dead ends: 7548 [2023-12-25 05:29:48,554 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 05:29:48,554 INFO L413 NwaCegarLoop]: 789 mSDtfsCounter, 47 mSDsluCounter, 1523 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 2312 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:29:48,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 2312 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:29:48,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7548 states. [2023-12-25 05:29:49,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7548 to 7434. [2023-12-25 05:29:49,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7434 states, 5601 states have (on average 1.6014997321906803) internal successors, (8970), 5944 states have internal predecessors, (8970), 1447 states have call successors, (1447), 327 states have call predecessors, (1447), 385 states have return successors, (1926), 1367 states have call predecessors, (1926), 1442 states have call successors, (1926) [2023-12-25 05:29:49,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7434 states to 7434 states and 12343 transitions. [2023-12-25 05:29:49,085 INFO L78 Accepts]: Start accepts. Automaton has 7434 states and 12343 transitions. Word has length 125 [2023-12-25 05:29:49,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:29:49,085 INFO L495 AbstractCegarLoop]: Abstraction has 7434 states and 12343 transitions. [2023-12-25 05:29:49,086 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 05:29:49,086 INFO L276 IsEmpty]: Start isEmpty. Operand 7434 states and 12343 transitions. [2023-12-25 05:29:49,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-25 05:29:49,090 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:29:49,090 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 05:29:49,097 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 05:29:49,291 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 05:29:49,292 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:29:49,292 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:29:49,292 INFO L85 PathProgramCache]: Analyzing trace with hash -911417085, now seen corresponding path program 1 times [2023-12-25 05:29:49,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:29:49,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [250242842] [2023-12-25 05:29:49,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:29:49,293 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 05:29:49,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:29:49,294 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 05:29:49,305 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 05:29:49,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:29:49,557 INFO L262 TraceCheckSpWp]: Trace formula consists of 805 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-25 05:29:49,567 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:29:49,752 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 05:29:49,752 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:29:50,062 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 05:29:50,063 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:29:50,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [250242842] [2023-12-25 05:29:50,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [250242842] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:29:50,063 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:29:50,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 15 [2023-12-25 05:29:50,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979858955] [2023-12-25 05:29:50,063 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:29:50,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-25 05:29:50,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:29:50,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-25 05:29:50,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2023-12-25 05:29:50,065 INFO L87 Difference]: Start difference. First operand 7434 states and 12343 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 05:29:55,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:29:55,078 INFO L93 Difference]: Finished difference Result 24398 states and 41095 transitions. [2023-12-25 05:29:55,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-25 05:29:55,078 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 05:29:55,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:29:55,186 INFO L225 Difference]: With dead ends: 24398 [2023-12-25 05:29:55,186 INFO L226 Difference]: Without dead ends: 17011 [2023-12-25 05:29:55,214 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 05:29:55,215 INFO L413 NwaCegarLoop]: 751 mSDtfsCounter, 5295 mSDsluCounter, 2638 mSDsCounter, 0 mSdLazyCounter, 5083 mSolverCounterSat, 1592 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5407 SdHoareTripleChecker+Valid, 3389 SdHoareTripleChecker+Invalid, 6675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1592 IncrementalHoareTripleChecker+Valid, 5083 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:29:55,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5407 Valid, 3389 Invalid, 6675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1592 Valid, 5083 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-12-25 05:29:55,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17011 states. [2023-12-25 05:29:56,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17011 to 16908. [2023-12-25 05:29:56,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16908 states, 12425 states have (on average 1.5948490945674045) internal successors, (19816), 13232 states have internal predecessors, (19816), 3661 states have call successors, (3661), 650 states have call predecessors, (3661), 821 states have return successors, (5062), 3540 states have call predecessors, (5062), 3656 states have call successors, (5062) [2023-12-25 05:29:56,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16908 states to 16908 states and 28539 transitions. [2023-12-25 05:29:56,754 INFO L78 Accepts]: Start accepts. Automaton has 16908 states and 28539 transitions. Word has length 153 [2023-12-25 05:29:56,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:29:56,755 INFO L495 AbstractCegarLoop]: Abstraction has 16908 states and 28539 transitions. [2023-12-25 05:29:56,755 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 05:29:56,755 INFO L276 IsEmpty]: Start isEmpty. Operand 16908 states and 28539 transitions. [2023-12-25 05:29:56,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-25 05:29:56,765 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:29:56,766 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 05:29:56,774 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Ended with exit code 0 [2023-12-25 05:29:56,966 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 05:29:56,966 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:29:56,967 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:29:56,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1362712666, now seen corresponding path program 1 times [2023-12-25 05:29:56,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:29:56,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1920128406] [2023-12-25 05:29:56,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:29:56,968 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:29:56,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:29:56,969 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 05:29:56,970 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2023-12-25 05:29:57,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:29:57,218 INFO L262 TraceCheckSpWp]: Trace formula consists of 806 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:29:57,221 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:29:57,237 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 05:29:57,237 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:29:57,237 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:29:57,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1920128406] [2023-12-25 05:29:57,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1920128406] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:29:57,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:29:57,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:29:57,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735133259] [2023-12-25 05:29:57,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:29:57,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:29:57,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:29:57,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:29:57,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:29:57,238 INFO L87 Difference]: Start difference. First operand 16908 states and 28539 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 05:29:58,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:29:58,507 INFO L93 Difference]: Finished difference Result 33915 states and 57513 transitions. [2023-12-25 05:29:58,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:29:58,508 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 05:29:58,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:29:58,587 INFO L225 Difference]: With dead ends: 33915 [2023-12-25 05:29:58,587 INFO L226 Difference]: Without dead ends: 17070 [2023-12-25 05:29:58,640 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 05:29:58,641 INFO L413 NwaCegarLoop]: 726 mSDtfsCounter, 18 mSDsluCounter, 1417 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 2143 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:29:58,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 2143 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:29:58,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17070 states. [2023-12-25 05:29:59,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17070 to 17068. [2023-12-25 05:29:59,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17068 states, 12561 states have (on average 1.5864978902953586) internal successors, (19928), 13352 states have internal predecessors, (19928), 3649 states have call successors, (3649), 710 states have call predecessors, (3649), 857 states have return successors, (4946), 3520 states have call predecessors, (4946), 3644 states have call successors, (4946) [2023-12-25 05:30:00,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17068 states to 17068 states and 28523 transitions. [2023-12-25 05:30:00,012 INFO L78 Accepts]: Start accepts. Automaton has 17068 states and 28523 transitions. Word has length 154 [2023-12-25 05:30:00,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:30:00,013 INFO L495 AbstractCegarLoop]: Abstraction has 17068 states and 28523 transitions. [2023-12-25 05:30:00,013 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 05:30:00,013 INFO L276 IsEmpty]: Start isEmpty. Operand 17068 states and 28523 transitions. [2023-12-25 05:30:00,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-25 05:30:00,022 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:30:00,023 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 05:30:00,032 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 05:30:00,223 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 05:30:00,223 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:30:00,224 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:30:00,224 INFO L85 PathProgramCache]: Analyzing trace with hash 718303605, now seen corresponding path program 1 times [2023-12-25 05:30:00,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:30:00,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [695025516] [2023-12-25 05:30:00,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:30:00,224 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 05:30:00,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:30:00,226 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 05:30:00,227 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 05:30:00,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:30:00,485 INFO L262 TraceCheckSpWp]: Trace formula consists of 809 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:30:00,488 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:30:00,541 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 05:30:00,541 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:30:00,541 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:30:00,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [695025516] [2023-12-25 05:30:00,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [695025516] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:30:00,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:30:00,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:30:00,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113857507] [2023-12-25 05:30:00,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:30:00,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:30:00,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:30:00,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:30:00,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:30:00,543 INFO L87 Difference]: Start difference. First operand 17068 states and 28523 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 05:30:01,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:30:01,718 INFO L93 Difference]: Finished difference Result 24403 states and 40610 transitions. [2023-12-25 05:30:01,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:30:01,719 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 05:30:01,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:30:01,823 INFO L225 Difference]: With dead ends: 24403 [2023-12-25 05:30:01,824 INFO L226 Difference]: Without dead ends: 16871 [2023-12-25 05:30:01,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 150 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 05:30:01,854 INFO L413 NwaCegarLoop]: 738 mSDtfsCounter, 26 mSDsluCounter, 4410 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 5148 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:30:01,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 5148 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:30:01,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16871 states. [2023-12-25 05:30:03,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16871 to 16871. [2023-12-25 05:30:03,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16871 states, 12409 states have (on average 1.5901361914739303) internal successors, (19732), 13201 states have internal predecessors, (19732), 3607 states have call successors, (3607), 709 states have call predecessors, (3607), 854 states have return successors, (4852), 3475 states have call predecessors, (4852), 3602 states have call successors, (4852) [2023-12-25 05:30:03,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16871 states to 16871 states and 28191 transitions. [2023-12-25 05:30:03,160 INFO L78 Accepts]: Start accepts. Automaton has 16871 states and 28191 transitions. Word has length 157 [2023-12-25 05:30:03,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:30:03,160 INFO L495 AbstractCegarLoop]: Abstraction has 16871 states and 28191 transitions. [2023-12-25 05:30:03,160 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 05:30:03,160 INFO L276 IsEmpty]: Start isEmpty. Operand 16871 states and 28191 transitions. [2023-12-25 05:30:03,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-12-25 05:30:03,167 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:30:03,167 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 05:30:03,177 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 (32)] Forceful destruction successful, exit code 0 [2023-12-25 05:30:03,375 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 05:30:03,375 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:30:03,376 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:30:03,376 INFO L85 PathProgramCache]: Analyzing trace with hash -891510210, now seen corresponding path program 1 times [2023-12-25 05:30:03,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:30:03,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1586712877] [2023-12-25 05:30:03,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:30:03,376 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 05:30:03,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:30:03,377 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 05:30:03,378 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 05:30:03,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:30:03,704 INFO L262 TraceCheckSpWp]: Trace formula consists of 958 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:30:03,721 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:30:03,733 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 05:30:03,733 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:30:03,733 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:30:03,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1586712877] [2023-12-25 05:30:03,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1586712877] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:30:03,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:30:03,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:30:03,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346693721] [2023-12-25 05:30:03,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:30:03,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:30:03,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:30:03,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:30:03,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:30:03,735 INFO L87 Difference]: Start difference. First operand 16871 states and 28191 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 05:30:05,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:30:05,680 INFO L93 Difference]: Finished difference Result 38542 states and 65385 transitions. [2023-12-25 05:30:05,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:30:05,681 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 05:30:05,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:30:05,781 INFO L225 Difference]: With dead ends: 38542 [2023-12-25 05:30:05,781 INFO L226 Difference]: Without dead ends: 23349 [2023-12-25 05:30:05,819 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 05:30:05,820 INFO L413 NwaCegarLoop]: 933 mSDtfsCounter, 211 mSDsluCounter, 1577 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 2510 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:30:05,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 2510 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:30:05,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23349 states. [2023-12-25 05:30:07,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23349 to 16927. [2023-12-25 05:30:07,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16927 states, 12465 states have (on average 1.5874849578820698) internal successors, (19788), 13257 states have internal predecessors, (19788), 3607 states have call successors, (3607), 709 states have call predecessors, (3607), 854 states have return successors, (4852), 3475 states have call predecessors, (4852), 3602 states have call successors, (4852) [2023-12-25 05:30:07,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16927 states to 16927 states and 28247 transitions. [2023-12-25 05:30:07,648 INFO L78 Accepts]: Start accepts. Automaton has 16927 states and 28247 transitions. Word has length 174 [2023-12-25 05:30:07,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:30:07,648 INFO L495 AbstractCegarLoop]: Abstraction has 16927 states and 28247 transitions. [2023-12-25 05:30:07,649 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 05:30:07,649 INFO L276 IsEmpty]: Start isEmpty. Operand 16927 states and 28247 transitions. [2023-12-25 05:30:07,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-12-25 05:30:07,656 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:30:07,656 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 05:30:07,666 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 (33)] Forceful destruction successful, exit code 0 [2023-12-25 05:30:07,866 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 05:30:07,866 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:30:07,866 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:30:07,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1933203426, now seen corresponding path program 1 times [2023-12-25 05:30:07,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:30:07,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1764478210] [2023-12-25 05:30:07,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:30:07,867 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 05:30:07,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:30:07,868 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 05:30:07,869 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2023-12-25 05:30:08,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:30:08,204 INFO L262 TraceCheckSpWp]: Trace formula consists of 964 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 05:30:08,207 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:30:08,391 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 05:30:08,391 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:30:08,877 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 05:30:08,877 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:30:08,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1764478210] [2023-12-25 05:30:08,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1764478210] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:30:08,877 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:30:08,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 15 [2023-12-25 05:30:08,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224923476] [2023-12-25 05:30:08,878 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:30:08,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-25 05:30:08,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:30:08,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-25 05:30:08,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2023-12-25 05:30:08,879 INFO L87 Difference]: Start difference. First operand 16927 states and 28247 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 05:30:18,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:30:18,057 INFO L93 Difference]: Finished difference Result 47765 states and 80084 transitions. [2023-12-25 05:30:18,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-12-25 05:30:18,059 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 05:30:18,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:30:18,252 INFO L225 Difference]: With dead ends: 47765 [2023-12-25 05:30:18,252 INFO L226 Difference]: Without dead ends: 32719 [2023-12-25 05:30:18,312 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 05:30:18,313 INFO L413 NwaCegarLoop]: 519 mSDtfsCounter, 8480 mSDsluCounter, 2717 mSDsCounter, 0 mSdLazyCounter, 6892 mSolverCounterSat, 2506 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8552 SdHoareTripleChecker+Valid, 3236 SdHoareTripleChecker+Invalid, 9398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2506 IncrementalHoareTripleChecker+Valid, 6892 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:30:18,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8552 Valid, 3236 Invalid, 9398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2506 Valid, 6892 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2023-12-25 05:30:18,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32719 states. [2023-12-25 05:30:21,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32719 to 32135. [2023-12-25 05:30:21,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32135 states, 23602 states have (on average 1.580628760274553) internal successors, (37306), 25019 states have internal predecessors, (37306), 6794 states have call successors, (6794), 1426 states have call predecessors, (6794), 1738 states have return successors, (9477), 6638 states have call predecessors, (9477), 6789 states have call successors, (9477) [2023-12-25 05:30:21,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32135 states to 32135 states and 53577 transitions. [2023-12-25 05:30:21,315 INFO L78 Accepts]: Start accepts. Automaton has 32135 states and 53577 transitions. Word has length 176 [2023-12-25 05:30:21,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:30:21,316 INFO L495 AbstractCegarLoop]: Abstraction has 32135 states and 53577 transitions. [2023-12-25 05:30:21,316 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 05:30:21,316 INFO L276 IsEmpty]: Start isEmpty. Operand 32135 states and 53577 transitions. [2023-12-25 05:30:21,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2023-12-25 05:30:21,322 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:30:21,322 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 05:30:21,332 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 (34)] Ended with exit code 0 [2023-12-25 05:30:21,522 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 05:30:21,522 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:30:21,523 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:30:21,523 INFO L85 PathProgramCache]: Analyzing trace with hash 637997918, now seen corresponding path program 1 times [2023-12-25 05:30:21,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:30:21,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [368316681] [2023-12-25 05:30:21,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:30:21,523 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 05:30:21,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:30:21,524 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 05:30:21,525 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 05:30:21,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:30:21,869 INFO L262 TraceCheckSpWp]: Trace formula consists of 959 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-25 05:30:21,872 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:30:22,057 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 05:30:22,057 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:30:22,057 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:30:22,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [368316681] [2023-12-25 05:30:22,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [368316681] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:30:22,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:30:22,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 05:30:22,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491080407] [2023-12-25 05:30:22,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:30:22,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 05:30:22,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:30:22,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 05:30:22,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-12-25 05:30:22,059 INFO L87 Difference]: Start difference. First operand 32135 states and 53577 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 05:30:28,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:30:28,060 INFO L93 Difference]: Finished difference Result 62570 states and 104573 transitions. [2023-12-25 05:30:28,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-25 05:30:28,061 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 05:30:28,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:30:28,330 INFO L225 Difference]: With dead ends: 62570 [2023-12-25 05:30:28,330 INFO L226 Difference]: Without dead ends: 32364 [2023-12-25 05:30:28,403 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 05:30:28,403 INFO L413 NwaCegarLoop]: 771 mSDtfsCounter, 2725 mSDsluCounter, 2294 mSDsCounter, 0 mSdLazyCounter, 4996 mSolverCounterSat, 605 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2819 SdHoareTripleChecker+Valid, 3065 SdHoareTripleChecker+Invalid, 5601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 605 IncrementalHoareTripleChecker+Valid, 4996 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-12-25 05:30:28,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2819 Valid, 3065 Invalid, 5601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [605 Valid, 4996 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-12-25 05:30:28,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32364 states. [2023-12-25 05:30:30,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32364 to 32189. [2023-12-25 05:30:31,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32189 states, 23647 states have (on average 1.579523829661268) internal successors, (37351), 25055 states have internal predecessors, (37351), 6794 states have call successors, (6794), 1426 states have call predecessors, (6794), 1747 states have return successors, (9486), 6656 states have call predecessors, (9486), 6789 states have call successors, (9486) [2023-12-25 05:30:31,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32189 states to 32189 states and 53631 transitions. [2023-12-25 05:30:31,250 INFO L78 Accepts]: Start accepts. Automaton has 32189 states and 53631 transitions. Word has length 175 [2023-12-25 05:30:31,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:30:31,250 INFO L495 AbstractCegarLoop]: Abstraction has 32189 states and 53631 transitions. [2023-12-25 05:30:31,250 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 05:30:31,250 INFO L276 IsEmpty]: Start isEmpty. Operand 32189 states and 53631 transitions. [2023-12-25 05:30:31,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-12-25 05:30:31,256 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:30:31,256 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 05:30:31,265 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 05:30:31,456 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 05:30:31,456 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:30:31,457 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:30:31,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1967624777, now seen corresponding path program 1 times [2023-12-25 05:30:31,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:30:31,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [257241099] [2023-12-25 05:30:31,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:30:31,457 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 05:30:31,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:30:31,458 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 05:30:31,573 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2023-12-25 05:30:31,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:30:31,871 INFO L262 TraceCheckSpWp]: Trace formula consists of 960 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 05:30:31,875 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:30:32,066 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 05:30:32,066 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:30:32,542 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 05:30:32,542 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:30:32,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [257241099] [2023-12-25 05:30:32,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [257241099] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:30:32,542 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:30:32,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 14 [2023-12-25 05:30:32,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490419594] [2023-12-25 05:30:32,543 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:30:32,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-25 05:30:32,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:30:32,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-25 05:30:32,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-12-25 05:30:32,544 INFO L87 Difference]: Start difference. First operand 32189 states and 53631 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 05:30:42,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:30:42,934 INFO L93 Difference]: Finished difference Result 82565 states and 140220 transitions. [2023-12-25 05:30:42,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-25 05:30:42,936 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 05:30:42,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:30:43,068 INFO L225 Difference]: With dead ends: 82565 [2023-12-25 05:30:43,069 INFO L226 Difference]: Without dead ends: 26184 [2023-12-25 05:30:43,225 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 05:30:43,225 INFO L413 NwaCegarLoop]: 474 mSDtfsCounter, 4541 mSDsluCounter, 2984 mSDsCounter, 0 mSdLazyCounter, 6243 mSolverCounterSat, 1349 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4618 SdHoareTripleChecker+Valid, 3458 SdHoareTripleChecker+Invalid, 7592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1349 IncrementalHoareTripleChecker+Valid, 6243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:30:43,225 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4618 Valid, 3458 Invalid, 7592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1349 Valid, 6243 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2023-12-25 05:30:43,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26184 states. [2023-12-25 05:30:44,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26184 to 20167. [2023-12-25 05:30:44,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20167 states, 15078 states have (on average 1.571096962461865) internal successors, (23689), 15917 states have internal predecessors, (23689), 3866 states have call successors, (3866), 1044 states have call predecessors, (3866), 1222 states have return successors, (5580), 3699 states have call predecessors, (5580), 3861 states have call successors, (5580) [2023-12-25 05:30:44,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20167 states to 20167 states and 33135 transitions. [2023-12-25 05:30:44,859 INFO L78 Accepts]: Start accepts. Automaton has 20167 states and 33135 transitions. Word has length 176 [2023-12-25 05:30:44,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:30:44,859 INFO L495 AbstractCegarLoop]: Abstraction has 20167 states and 33135 transitions. [2023-12-25 05:30:44,859 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 05:30:44,859 INFO L276 IsEmpty]: Start isEmpty. Operand 20167 states and 33135 transitions. [2023-12-25 05:30:44,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2023-12-25 05:30:44,864 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:30:44,864 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, 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] [2023-12-25 05:30:44,873 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 (36)] Ended with exit code 0 [2023-12-25 05:30:45,064 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 05:30:45,065 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:30:45,065 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:30:45,065 INFO L85 PathProgramCache]: Analyzing trace with hash 579709777, now seen corresponding path program 1 times [2023-12-25 05:30:45,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:30:45,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [593630208] [2023-12-25 05:30:45,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:30:45,066 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 05:30:45,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:30:45,067 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 05:30:45,068 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 05:30:45,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:30:45,388 INFO L262 TraceCheckSpWp]: Trace formula consists of 1024 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:30:45,391 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:30:45,558 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-12-25 05:30:45,558 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:30:45,559 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:30:45,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [593630208] [2023-12-25 05:30:45,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [593630208] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:30:45,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:30:45,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:30:45,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550962023] [2023-12-25 05:30:45,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:30:45,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:30:45,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:30:45,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:30:45,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:30:45,560 INFO L87 Difference]: Start difference. First operand 20167 states and 33135 transitions. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-12-25 05:30:47,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:30:47,874 INFO L93 Difference]: Finished difference Result 40296 states and 66374 transitions. [2023-12-25 05:30:47,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:30:47,875 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 213 [2023-12-25 05:30:47,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:30:48,025 INFO L225 Difference]: With dead ends: 40296 [2023-12-25 05:30:48,025 INFO L226 Difference]: Without dead ends: 20167 [2023-12-25 05:30:48,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 210 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 05:30:48,117 INFO L413 NwaCegarLoop]: 777 mSDtfsCounter, 97 mSDsluCounter, 1456 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 2233 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:30:48,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 2233 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:30:48,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20167 states. [2023-12-25 05:30:50,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20167 to 20161. [2023-12-25 05:30:50,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20161 states, 15072 states have (on average 1.5682722929936306) internal successors, (23637), 15911 states have internal predecessors, (23637), 3866 states have call successors, (3866), 1044 states have call predecessors, (3866), 1222 states have return successors, (5580), 3699 states have call predecessors, (5580), 3861 states have call successors, (5580) [2023-12-25 05:30:50,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20161 states to 20161 states and 33083 transitions. [2023-12-25 05:30:50,469 INFO L78 Accepts]: Start accepts. Automaton has 20161 states and 33083 transitions. Word has length 213 [2023-12-25 05:30:50,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:30:50,469 INFO L495 AbstractCegarLoop]: Abstraction has 20161 states and 33083 transitions. [2023-12-25 05:30:50,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-12-25 05:30:50,469 INFO L276 IsEmpty]: Start isEmpty. Operand 20161 states and 33083 transitions. [2023-12-25 05:30:50,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2023-12-25 05:30:50,475 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:30:50,476 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, 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 05:30:50,488 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 (37)] Ended with exit code 0 [2023-12-25 05:30:50,683 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 05:30:50,684 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:30:50,684 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:30:50,684 INFO L85 PathProgramCache]: Analyzing trace with hash 443331580, now seen corresponding path program 1 times [2023-12-25 05:30:50,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:30:50,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [412595759] [2023-12-25 05:30:50,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:30:50,685 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 05:30:50,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:30:50,686 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 05:30:50,687 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 05:30:51,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:30:51,024 INFO L262 TraceCheckSpWp]: Trace formula consists of 1025 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:30:51,027 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:30:51,256 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-12-25 05:30:51,256 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:30:51,488 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-12-25 05:30:51,488 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:30:51,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [412595759] [2023-12-25 05:30:51,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [412595759] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:30:51,489 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:30:51,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 10 [2023-12-25 05:30:51,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210624895] [2023-12-25 05:30:51,489 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:30:51,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-25 05:30:51,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:30:51,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-25 05:30:51,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-25 05:30:51,490 INFO L87 Difference]: Start difference. First operand 20161 states and 33083 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, (37), 6 states have call predecessors, (37), 5 states have return successors, (35), 7 states have call predecessors, (35), 6 states have call successors, (35) [2023-12-25 05:30:57,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:30:57,512 INFO L93 Difference]: Finished difference Result 54983 states and 91882 transitions. [2023-12-25 05:30:57,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-25 05:30:57,514 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, (37), 6 states have call predecessors, (37), 5 states have return successors, (35), 7 states have call predecessors, (35), 6 states have call successors, (35) Word has length 214 [2023-12-25 05:30:57,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:30:57,777 INFO L225 Difference]: With dead ends: 54983 [2023-12-25 05:30:57,777 INFO L226 Difference]: Without dead ends: 34834 [2023-12-25 05:30:58,004 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 431 GetRequests, 420 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2023-12-25 05:30:58,006 INFO L413 NwaCegarLoop]: 478 mSDtfsCounter, 2507 mSDsluCounter, 1624 mSDsCounter, 0 mSdLazyCounter, 5173 mSolverCounterSat, 601 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2637 SdHoareTripleChecker+Valid, 2102 SdHoareTripleChecker+Invalid, 5774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 601 IncrementalHoareTripleChecker+Valid, 5173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:30:58,007 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2637 Valid, 2102 Invalid, 5774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [601 Valid, 5173 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-12-25 05:30:58,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34834 states. [2023-12-25 05:31:00,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34834 to 33895. [2023-12-25 05:31:00,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33895 states, 25370 states have (on average 1.5921560898699252) internal successors, (40393), 26759 states have internal predecessors, (40393), 6626 states have call successors, (6626), 1635 states have call predecessors, (6626), 1898 states have return successors, (9398), 6491 states have call predecessors, (9398), 6621 states have call successors, (9398) [2023-12-25 05:31:00,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33895 states to 33895 states and 56417 transitions. [2023-12-25 05:31:00,465 INFO L78 Accepts]: Start accepts. Automaton has 33895 states and 56417 transitions. Word has length 214 [2023-12-25 05:31:00,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:00,465 INFO L495 AbstractCegarLoop]: Abstraction has 33895 states and 56417 transitions. [2023-12-25 05:31:00,466 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, (37), 6 states have call predecessors, (37), 5 states have return successors, (35), 7 states have call predecessors, (35), 6 states have call successors, (35) [2023-12-25 05:31:00,466 INFO L276 IsEmpty]: Start isEmpty. Operand 33895 states and 56417 transitions. [2023-12-25 05:31:00,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2023-12-25 05:31:00,469 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:00,469 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 05:31:00,481 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 (38)] Forceful destruction successful, exit code 0 [2023-12-25 05:31:00,676 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 05:31:00,677 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:00,677 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:00,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1904735729, now seen corresponding path program 1 times [2023-12-25 05:31:00,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:00,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [873224599] [2023-12-25 05:31:00,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:00,678 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 05:31:00,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:00,679 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 05:31:00,681 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 05:31:01,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:01,043 INFO L262 TraceCheckSpWp]: Trace formula consists of 1018 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-25 05:31:01,047 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:01,307 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 05:31:01,307 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:31:02,107 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 05:31:02,108 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:02,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [873224599] [2023-12-25 05:31:02,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [873224599] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:31:02,108 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:31:02,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 18 [2023-12-25 05:31:02,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780068360] [2023-12-25 05:31:02,108 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:31:02,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-25 05:31:02,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:02,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-25 05:31:02,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2023-12-25 05:31:02,110 INFO L87 Difference]: Start difference. First operand 33895 states and 56417 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 05:31:17,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:17,481 INFO L93 Difference]: Finished difference Result 154569 states and 263662 transitions. [2023-12-25 05:31:17,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-12-25 05:31:17,483 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 05:31:17,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:18,405 INFO L225 Difference]: With dead ends: 154569 [2023-12-25 05:31:18,405 INFO L226 Difference]: Without dead ends: 119777 [2023-12-25 05:31:18,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 456 GetRequests, 416 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 377 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=332, Invalid=1390, Unknown=0, NotChecked=0, Total=1722 [2023-12-25 05:31:18,668 INFO L413 NwaCegarLoop]: 544 mSDtfsCounter, 8184 mSDsluCounter, 4064 mSDsCounter, 0 mSdLazyCounter, 9087 mSolverCounterSat, 2355 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8298 SdHoareTripleChecker+Valid, 4608 SdHoareTripleChecker+Invalid, 11442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2355 IncrementalHoareTripleChecker+Valid, 9087 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:18,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8298 Valid, 4608 Invalid, 11442 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2355 Valid, 9087 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2023-12-25 05:31:18,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119777 states. [2023-12-25 05:31:26,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119777 to 116505. [2023-12-25 05:31:27,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116505 states, 86444 states have (on average 1.5857665077969552) internal successors, (137080), 91165 states have internal predecessors, (137080), 23770 states have call successors, (23770), 5651 states have call predecessors, (23770), 6290 states have return successors, (35229), 23433 states have call predecessors, (35229), 23765 states have call successors, (35229) [2023-12-25 05:31:28,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116505 states to 116505 states and 196079 transitions. [2023-12-25 05:31:28,718 INFO L78 Accepts]: Start accepts. Automaton has 116505 states and 196079 transitions. Word has length 211 [2023-12-25 05:31:28,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:28,718 INFO L495 AbstractCegarLoop]: Abstraction has 116505 states and 196079 transitions. [2023-12-25 05:31:28,719 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 05:31:28,719 INFO L276 IsEmpty]: Start isEmpty. Operand 116505 states and 196079 transitions. [2023-12-25 05:31:28,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2023-12-25 05:31:28,721 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:28,722 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 05:31:28,732 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 05:31:28,922 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 05:31:28,923 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:28,923 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:28,924 INFO L85 PathProgramCache]: Analyzing trace with hash -816957583, now seen corresponding path program 1 times [2023-12-25 05:31:28,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:28,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1528082711] [2023-12-25 05:31:28,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:28,924 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:31:28,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:28,925 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 05:31:28,928 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 05:31:29,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:29,386 INFO L262 TraceCheckSpWp]: Trace formula consists of 1024 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:31:29,389 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:29,402 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 05:31:29,402 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:29,403 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:29,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1528082711] [2023-12-25 05:31:29,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1528082711] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:29,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:29,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:31:29,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906146139] [2023-12-25 05:31:29,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:29,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:31:29,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:29,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:31:29,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:31:29,404 INFO L87 Difference]: Start difference. First operand 116505 states and 196079 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) [2023-12-25 05:31:40,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:40,917 INFO L93 Difference]: Finished difference Result 235974 states and 401842 transitions. [2023-12-25 05:31:40,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:31:40,918 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 217 [2023-12-25 05:31:40,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:42,119 INFO L225 Difference]: With dead ends: 235974 [2023-12-25 05:31:42,120 INFO L226 Difference]: Without dead ends: 119628 [2023-12-25 05:31:42,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 215 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 05:31:42,773 INFO L413 NwaCegarLoop]: 678 mSDtfsCounter, 101 mSDsluCounter, 1332 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 2010 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:42,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 2010 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:31:42,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119628 states. [2023-12-25 05:31:51,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119628 to 119628. [2023-12-25 05:31:51,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119628 states, 89222 states have (on average 1.5772679384008428) internal successors, (140727), 94028 states have internal predecessors, (140727), 23770 states have call successors, (23770), 5911 states have call predecessors, (23770), 6635 states have return successors, (35229), 23433 states have call predecessors, (35229), 23765 states have call successors, (35229) [2023-12-25 05:31:53,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119628 states to 119628 states and 199726 transitions. [2023-12-25 05:31:53,061 INFO L78 Accepts]: Start accepts. Automaton has 119628 states and 199726 transitions. Word has length 217 [2023-12-25 05:31:53,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:53,062 INFO L495 AbstractCegarLoop]: Abstraction has 119628 states and 199726 transitions. [2023-12-25 05:31:53,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2023-12-25 05:31:53,062 INFO L276 IsEmpty]: Start isEmpty. Operand 119628 states and 199726 transitions. [2023-12-25 05:31:53,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2023-12-25 05:31:53,065 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:53,065 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 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, 1] [2023-12-25 05:31:53,076 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 05:31:53,268 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 05:31:53,269 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:53,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:53,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1829385309, now seen corresponding path program 1 times [2023-12-25 05:31:53,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:53,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1272528338] [2023-12-25 05:31:53,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:53,270 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 05:31:53,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:53,271 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 05:31:53,274 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 05:31:53,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:53,657 INFO L262 TraceCheckSpWp]: Trace formula consists of 1029 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:31:53,660 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:53,677 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2023-12-25 05:31:53,677 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:53,677 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:53,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1272528338] [2023-12-25 05:31:53,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1272528338] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:53,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:53,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:31:53,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731151603] [2023-12-25 05:31:53,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:53,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:31:53,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:53,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:31:53,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:31:53,679 INFO L87 Difference]: Start difference. First operand 119628 states and 199726 transitions. Second operand has 4 states, 4 states have (on average 35.5) internal successors, (142), 4 states have internal predecessors, (142), 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)