/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_spec1_product30.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 17:21:18,783 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 17:21:18,839 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 17:21:18,847 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 17:21:18,847 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 17:21:18,874 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 17:21:18,875 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 17:21:18,875 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 17:21:18,875 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 17:21:18,876 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 17:21:18,876 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 17:21:18,876 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 17:21:18,876 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 17:21:18,877 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 17:21:18,877 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 17:21:18,877 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 17:21:18,877 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 17:21:18,878 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 17:21:18,878 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 17:21:18,878 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 17:21:18,878 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 17:21:18,883 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 17:21:18,883 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 17:21:18,884 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 17:21:18,890 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 17:21:18,890 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 17:21:18,890 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 17:21:18,891 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 17:21:18,891 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 17:21:18,891 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 17:21:18,891 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 17:21:18,891 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 17:21:18,891 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 17:21:18,891 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 17:21:18,892 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:21:18,893 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 17:21:18,893 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 17:21:18,893 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 17:21:18,893 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 17:21:18,893 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 17:21:18,893 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 17:21:18,894 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 17:21:18,894 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 17:21:18,894 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 17:21:18,895 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 17:21:18,895 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 17:21:18,895 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 17:21:19,055 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 17:21:19,076 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 17:21:19,078 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 17:21:19,079 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 17:21:19,079 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 17:21:19,080 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec1_product30.cil.c [2023-12-16 17:21:20,115 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 17:21:20,304 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 17:21:20,304 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec1_product30.cil.c [2023-12-16 17:21:20,317 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8be9f44b7/94d0b2d88d144193822049947e5e35b4/FLAG5abebc74b [2023-12-16 17:21:20,326 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8be9f44b7/94d0b2d88d144193822049947e5e35b4 [2023-12-16 17:21:20,328 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 17:21:20,329 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 17:21:20,330 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 17:21:20,330 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 17:21:20,333 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 17:21:20,334 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:21:20" (1/1) ... [2023-12-16 17:21:20,334 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79a43267 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:21:20, skipping insertion in model container [2023-12-16 17:21:20,334 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:21:20" (1/1) ... [2023-12-16 17:21:20,384 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 17:21:20,542 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_spec1_product30.cil.c[1545,1558] [2023-12-16 17:21:20,820 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:21:20,840 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-16 17:21:20,852 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 17:21:20,858 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_spec1_product30.cil.c[1545,1558] [2023-12-16 17:21:20,922 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:21:20,931 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 17:21:20,937 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [48] [2023-12-16 17:21:20,938 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [57] [2023-12-16 17:21:20,939 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [159] [2023-12-16 17:21:20,939 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [525] [2023-12-16 17:21:20,939 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [541] [2023-12-16 17:21:20,939 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [579] [2023-12-16 17:21:20,939 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [932] [2023-12-16 17:21:20,939 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [1604] [2023-12-16 17:21:20,939 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1724] [2023-12-16 17:21:20,939 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [3302] [2023-12-16 17:21:20,950 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_spec1_product30.cil.c[1545,1558] [2023-12-16 17:21:21,002 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:21:21,021 INFO L206 MainTranslator]: Completed translation [2023-12-16 17:21:21,022 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:21:21 WrapperNode [2023-12-16 17:21:21,022 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 17:21:21,022 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 17:21:21,023 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 17:21:21,023 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 17:21:21,027 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:21:21" (1/1) ... [2023-12-16 17:21:21,049 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:21:21" (1/1) ... [2023-12-16 17:21:21,092 INFO L138 Inliner]: procedures = 97, calls = 348, calls flagged for inlining = 28, calls inlined = 24, statements flattened = 857 [2023-12-16 17:21:21,093 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 17:21:21,093 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 17:21:21,093 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 17:21:21,093 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 17:21:21,104 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:21:21" (1/1) ... [2023-12-16 17:21:21,109 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:21:21" (1/1) ... [2023-12-16 17:21:21,117 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:21:21" (1/1) ... [2023-12-16 17:21:21,167 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]. [2023-12-16 17:21:21,167 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:21:21" (1/1) ... [2023-12-16 17:21:21,167 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:21:21" (1/1) ... [2023-12-16 17:21:21,188 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:21:21" (1/1) ... [2023-12-16 17:21:21,226 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:21:21" (1/1) ... [2023-12-16 17:21:21,231 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:21:21" (1/1) ... [2023-12-16 17:21:21,234 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:21:21" (1/1) ... [2023-12-16 17:21:21,242 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 17:21:21,242 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 17:21:21,243 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 17:21:21,243 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 17:21:21,243 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:21:21" (1/1) ... [2023-12-16 17:21:21,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:21:21,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 17:21:21,309 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) [2023-12-16 17:21:21,344 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 [2023-12-16 17:21:21,348 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2023-12-16 17:21:21,348 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2023-12-16 17:21:21,348 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 17:21:21,348 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-12-16 17:21:21,348 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-12-16 17:21:21,348 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2023-12-16 17:21:21,348 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2023-12-16 17:21:21,348 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-12-16 17:21:21,349 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-12-16 17:21:21,349 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-12-16 17:21:21,349 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-12-16 17:21:21,351 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-12-16 17:21:21,351 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-12-16 17:21:21,351 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2023-12-16 17:21:21,351 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2023-12-16 17:21:21,351 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-16 17:21:21,352 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-16 17:21:21,352 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-16 17:21:21,352 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-16 17:21:21,352 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2023-12-16 17:21:21,352 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2023-12-16 17:21:21,352 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-12-16 17:21:21,352 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-12-16 17:21:21,352 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-12-16 17:21:21,352 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-12-16 17:21:21,352 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-12-16 17:21:21,352 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-12-16 17:21:21,352 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-12-16 17:21:21,352 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-12-16 17:21:21,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 17:21:21,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-16 17:21:21,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-16 17:21:21,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-16 17:21:21,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-12-16 17:21:21,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2023-12-16 17:21:21,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2023-12-16 17:21:21,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2023-12-16 17:21:21,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2023-12-16 17:21:21,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2023-12-16 17:21:21,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2023-12-16 17:21:21,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2023-12-16 17:21:21,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12 [2023-12-16 17:21:21,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#13 [2023-12-16 17:21:21,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#14 [2023-12-16 17:21:21,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#15 [2023-12-16 17:21:21,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#16 [2023-12-16 17:21:21,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#17 [2023-12-16 17:21:21,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#18 [2023-12-16 17:21:21,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#19 [2023-12-16 17:21:21,354 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2023-12-16 17:21:21,354 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2023-12-16 17:21:21,354 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-12-16 17:21:21,355 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-12-16 17:21:21,355 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-12-16 17:21:21,355 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-12-16 17:21:21,355 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-12-16 17:21:21,355 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-12-16 17:21:21,355 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-12-16 17:21:21,355 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-12-16 17:21:21,355 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-12-16 17:21:21,356 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-12-16 17:21:21,356 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2023-12-16 17:21:21,356 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2023-12-16 17:21:21,356 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-12-16 17:21:21,356 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-12-16 17:21:21,356 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-12-16 17:21:21,357 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-12-16 17:21:21,357 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-12-16 17:21:21,357 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-12-16 17:21:21,357 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__twothirdsfull [2023-12-16 17:21:21,357 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__twothirdsfull [2023-12-16 17:21:21,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 17:21:21,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 17:21:21,357 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-12-16 17:21:21,357 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-12-16 17:21:21,512 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 17:21:21,514 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 17:21:22,326 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 17:21:22,426 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 17:21:22,427 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 17:21:22,427 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:21:22 BoogieIcfgContainer [2023-12-16 17:21:22,427 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 17:21:22,429 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 17:21:22,429 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 17:21:22,431 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 17:21:22,431 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 05:21:20" (1/3) ... [2023-12-16 17:21:22,431 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e2b1d96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:21:22, skipping insertion in model container [2023-12-16 17:21:22,431 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:21:21" (2/3) ... [2023-12-16 17:21:22,431 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e2b1d96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:21:22, skipping insertion in model container [2023-12-16 17:21:22,432 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:21:22" (3/3) ... [2023-12-16 17:21:22,432 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec1_product30.cil.c [2023-12-16 17:21:22,443 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 17:21:22,443 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 17:21:22,478 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 17:21:22,482 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;@58cb6ec0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 17:21:22,482 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 17:21:22,487 INFO L276 IsEmpty]: Start isEmpty. Operand has 567 states, 438 states have (on average 1.721461187214612) internal successors, (754), 461 states have internal predecessors, (754), 101 states have call successors, (101), 26 states have call predecessors, (101), 26 states have return successors, (101), 94 states have call predecessors, (101), 101 states have call successors, (101) [2023-12-16 17:21:22,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-16 17:21:22,497 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:21:22,498 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:21:22,498 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:21:22,502 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:21:22,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1401391401, now seen corresponding path program 1 times [2023-12-16 17:21:22,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:21:22,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [333274132] [2023-12-16 17:21:22,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:21:22,511 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 [2023-12-16 17:21:22,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:21:22,514 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) [2023-12-16 17:21:22,556 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 [2023-12-16 17:21:22,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:21:22,925 INFO L262 TraceCheckSpWp]: Trace formula consists of 877 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 17:21:22,931 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:21:22,952 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-16 17:21:22,952 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:21:22,953 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:21:22,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [333274132] [2023-12-16 17:21:22,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [333274132] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:21:22,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:21:22,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:21:22,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890481391] [2023-12-16 17:21:22,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:21:22,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 17:21:22,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:21:22,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 17:21:22,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 17:21:22,977 INFO L87 Difference]: Start difference. First operand has 567 states, 438 states have (on average 1.721461187214612) internal successors, (754), 461 states have internal predecessors, (754), 101 states have call successors, (101), 26 states have call predecessors, (101), 26 states have return successors, (101), 94 states have call predecessors, (101), 101 states have call successors, (101) Second operand has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 17:21:23,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:21:23,039 INFO L93 Difference]: Finished difference Result 585 states and 983 transitions. [2023-12-16 17:21:23,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 17:21:23,041 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) Word has length 72 [2023-12-16 17:21:23,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:21:23,056 INFO L225 Difference]: With dead ends: 585 [2023-12-16 17:21:23,056 INFO L226 Difference]: Without dead ends: 563 [2023-12-16 17:21:23,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 17:21:23,061 INFO L413 NwaCegarLoop]: 933 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 933 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:21:23,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 933 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:21:23,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2023-12-16 17:21:23,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 563. [2023-12-16 17:21:23,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 436 states have (on average 1.713302752293578) internal successors, (747), 457 states have internal predecessors, (747), 101 states have call successors, (101), 26 states have call predecessors, (101), 25 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-16 17:21:23,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 944 transitions. [2023-12-16 17:21:23,112 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 944 transitions. Word has length 72 [2023-12-16 17:21:23,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:21:23,113 INFO L495 AbstractCegarLoop]: Abstraction has 563 states and 944 transitions. [2023-12-16 17:21:23,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 17:21:23,113 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 944 transitions. [2023-12-16 17:21:23,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-16 17:21:23,116 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:21:23,116 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:21:23,127 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-16 17:21:23,324 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 [2023-12-16 17:21:23,325 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:21:23,325 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:21:23,325 INFO L85 PathProgramCache]: Analyzing trace with hash 738879436, now seen corresponding path program 1 times [2023-12-16 17:21:23,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:21:23,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1030285426] [2023-12-16 17:21:23,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:21:23,326 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 [2023-12-16 17:21:23,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:21:23,340 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) [2023-12-16 17:21:23,402 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 [2023-12-16 17:21:23,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:21:23,668 INFO L262 TraceCheckSpWp]: Trace formula consists of 878 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:21:23,671 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:21:23,699 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-16 17:21:23,699 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:21:23,699 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:21:23,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1030285426] [2023-12-16 17:21:23,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1030285426] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:21:23,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:21:23,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:21:23,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572483906] [2023-12-16 17:21:23,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:21:23,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:21:23,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:21:23,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:21:23,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:21:23,701 INFO L87 Difference]: Start difference. First operand 563 states and 944 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 17:21:23,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:21:23,798 INFO L93 Difference]: Finished difference Result 1123 states and 1886 transitions. [2023-12-16 17:21:23,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:21:23,799 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 73 [2023-12-16 17:21:23,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:21:23,803 INFO L225 Difference]: With dead ends: 1123 [2023-12-16 17:21:23,803 INFO L226 Difference]: Without dead ends: 563 [2023-12-16 17:21:23,809 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 [2023-12-16 17:21:23,810 INFO L413 NwaCegarLoop]: 917 mSDtfsCounter, 14 mSDsluCounter, 1827 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 2744 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:21:23,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 2744 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:21:23,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2023-12-16 17:21:23,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 563. [2023-12-16 17:21:23,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 436 states have (on average 1.7110091743119267) internal successors, (746), 457 states have internal predecessors, (746), 101 states have call successors, (101), 26 states have call predecessors, (101), 25 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-16 17:21:23,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 943 transitions. [2023-12-16 17:21:23,832 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 943 transitions. Word has length 73 [2023-12-16 17:21:23,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:21:23,833 INFO L495 AbstractCegarLoop]: Abstraction has 563 states and 943 transitions. [2023-12-16 17:21:23,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 17:21:23,833 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 943 transitions. [2023-12-16 17:21:23,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-16 17:21:23,835 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:21:23,835 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:21:23,846 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-16 17:21:24,043 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 [2023-12-16 17:21:24,044 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:21:24,044 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:21:24,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1280637874, now seen corresponding path program 1 times [2023-12-16 17:21:24,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:21:24,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [902534511] [2023-12-16 17:21:24,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:21:24,045 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:21:24,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:21:24,050 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) [2023-12-16 17:21:24,051 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 [2023-12-16 17:21:24,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:21:24,399 INFO L262 TraceCheckSpWp]: Trace formula consists of 880 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:21:24,402 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:21:24,418 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-16 17:21:24,419 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:21:24,419 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:21:24,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [902534511] [2023-12-16 17:21:24,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [902534511] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:21:24,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:21:24,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:21:24,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091463110] [2023-12-16 17:21:24,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:21:24,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:21:24,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:21:24,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:21:24,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:21:24,420 INFO L87 Difference]: Start difference. First operand 563 states and 943 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 17:21:24,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:21:24,507 INFO L93 Difference]: Finished difference Result 1123 states and 1884 transitions. [2023-12-16 17:21:24,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:21:24,507 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 75 [2023-12-16 17:21:24,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:21:24,510 INFO L225 Difference]: With dead ends: 1123 [2023-12-16 17:21:24,510 INFO L226 Difference]: Without dead ends: 563 [2023-12-16 17:21:24,512 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 [2023-12-16 17:21:24,513 INFO L413 NwaCegarLoop]: 917 mSDtfsCounter, 12 mSDsluCounter, 1827 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2744 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:21:24,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2744 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:21:24,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2023-12-16 17:21:24,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 563. [2023-12-16 17:21:24,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 436 states have (on average 1.7087155963302751) internal successors, (745), 457 states have internal predecessors, (745), 101 states have call successors, (101), 26 states have call predecessors, (101), 25 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-16 17:21:24,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 942 transitions. [2023-12-16 17:21:24,528 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 942 transitions. Word has length 75 [2023-12-16 17:21:24,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:21:24,528 INFO L495 AbstractCegarLoop]: Abstraction has 563 states and 942 transitions. [2023-12-16 17:21:24,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 17:21:24,529 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 942 transitions. [2023-12-16 17:21:24,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-16 17:21:24,530 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:21:24,530 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:21:24,552 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-12-16 17:21:24,738 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 [2023-12-16 17:21:24,739 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:21:24,739 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:21:24,739 INFO L85 PathProgramCache]: Analyzing trace with hash 98689300, now seen corresponding path program 1 times [2023-12-16 17:21:24,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:21:24,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [508355681] [2023-12-16 17:21:24,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:21:24,740 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 [2023-12-16 17:21:24,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:21:24,788 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) [2023-12-16 17:21:24,789 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 [2023-12-16 17:21:25,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:21:25,081 INFO L262 TraceCheckSpWp]: Trace formula consists of 882 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:21:25,084 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:21:25,101 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-16 17:21:25,101 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:21:25,101 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:21:25,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [508355681] [2023-12-16 17:21:25,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [508355681] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:21:25,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:21:25,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:21:25,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820571583] [2023-12-16 17:21:25,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:21:25,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:21:25,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:21:25,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:21:25,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:21:25,103 INFO L87 Difference]: Start difference. First operand 563 states and 942 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 17:21:25,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:21:25,186 INFO L93 Difference]: Finished difference Result 1127 states and 1887 transitions. [2023-12-16 17:21:25,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:21:25,186 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 77 [2023-12-16 17:21:25,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:21:25,189 INFO L225 Difference]: With dead ends: 1127 [2023-12-16 17:21:25,189 INFO L226 Difference]: Without dead ends: 569 [2023-12-16 17:21:25,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:21:25,191 INFO L413 NwaCegarLoop]: 917 mSDtfsCounter, 13 mSDsluCounter, 1827 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 2744 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:21:25,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 2744 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:21:25,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2023-12-16 17:21:25,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 569. [2023-12-16 17:21:25,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 569 states, 441 states have (on average 1.7006802721088434) internal successors, (750), 462 states have internal predecessors, (750), 101 states have call successors, (101), 27 states have call predecessors, (101), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-16 17:21:25,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 947 transitions. [2023-12-16 17:21:25,266 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 947 transitions. Word has length 77 [2023-12-16 17:21:25,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:21:25,266 INFO L495 AbstractCegarLoop]: Abstraction has 569 states and 947 transitions. [2023-12-16 17:21:25,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 17:21:25,267 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 947 transitions. [2023-12-16 17:21:25,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-16 17:21:25,268 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:21:25,268 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:21:25,296 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 [2023-12-16 17:21:25,476 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 [2023-12-16 17:21:25,476 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:21:25,476 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:21:25,476 INFO L85 PathProgramCache]: Analyzing trace with hash 484120412, now seen corresponding path program 1 times [2023-12-16 17:21:25,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:21:25,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1877972617] [2023-12-16 17:21:25,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:21:25,477 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 [2023-12-16 17:21:25,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:21:25,478 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) [2023-12-16 17:21:25,511 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-16 17:21:25,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:21:25,763 INFO L262 TraceCheckSpWp]: Trace formula consists of 883 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:21:25,766 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:21:25,785 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-16 17:21:25,785 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:21:25,786 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:21:25,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1877972617] [2023-12-16 17:21:25,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1877972617] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:21:25,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:21:25,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:21:25,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918648359] [2023-12-16 17:21:25,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:21:25,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:21:25,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:21:25,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:21:25,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:21:25,787 INFO L87 Difference]: Start difference. First operand 569 states and 947 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, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 17:21:25,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:21:25,866 INFO L93 Difference]: Finished difference Result 1126 states and 1878 transitions. [2023-12-16 17:21:25,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:21:25,867 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, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 78 [2023-12-16 17:21:25,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:21:25,870 INFO L225 Difference]: With dead ends: 1126 [2023-12-16 17:21:25,870 INFO L226 Difference]: Without dead ends: 569 [2023-12-16 17:21:25,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:21:25,872 INFO L413 NwaCegarLoop]: 918 mSDtfsCounter, 8 mSDsluCounter, 1827 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2745 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:21:25,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2745 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:21:25,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2023-12-16 17:21:25,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 569. [2023-12-16 17:21:25,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 569 states, 441 states have (on average 1.6984126984126984) internal successors, (749), 462 states have internal predecessors, (749), 101 states have call successors, (101), 27 states have call predecessors, (101), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-16 17:21:25,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 946 transitions. [2023-12-16 17:21:25,886 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 946 transitions. Word has length 78 [2023-12-16 17:21:25,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:21:25,886 INFO L495 AbstractCegarLoop]: Abstraction has 569 states and 946 transitions. [2023-12-16 17:21:25,886 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, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 17:21:25,886 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 946 transitions. [2023-12-16 17:21:25,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-16 17:21:25,887 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:21:25,887 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:21:25,897 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 [2023-12-16 17:21:26,095 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 [2023-12-16 17:21:26,095 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:21:26,095 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:21:26,095 INFO L85 PathProgramCache]: Analyzing trace with hash -1437669352, now seen corresponding path program 1 times [2023-12-16 17:21:26,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:21:26,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1719315687] [2023-12-16 17:21:26,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:21:26,096 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 [2023-12-16 17:21:26,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:21:26,098 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) [2023-12-16 17:21:26,130 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 (7)] Waiting until timeout for monitored process [2023-12-16 17:21:26,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:21:26,388 INFO L262 TraceCheckSpWp]: Trace formula consists of 884 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:21:26,391 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:21:26,408 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-16 17:21:26,409 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:21:26,409 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:21:26,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1719315687] [2023-12-16 17:21:26,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1719315687] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:21:26,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:21:26,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:21:26,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267228541] [2023-12-16 17:21:26,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:21:26,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:21:26,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:21:26,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:21:26,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:21:26,410 INFO L87 Difference]: Start difference. First operand 569 states and 946 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, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 17:21:26,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:21:26,506 INFO L93 Difference]: Finished difference Result 1126 states and 1877 transitions. [2023-12-16 17:21:26,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:21:26,506 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, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 79 [2023-12-16 17:21:26,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:21:26,509 INFO L225 Difference]: With dead ends: 1126 [2023-12-16 17:21:26,509 INFO L226 Difference]: Without dead ends: 569 [2023-12-16 17:21:26,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:21:26,511 INFO L413 NwaCegarLoop]: 918 mSDtfsCounter, 6 mSDsluCounter, 1827 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2745 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:21:26,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2745 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:21:26,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2023-12-16 17:21:26,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 569. [2023-12-16 17:21:26,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 569 states, 441 states have (on average 1.6961451247165533) internal successors, (748), 462 states have internal predecessors, (748), 101 states have call successors, (101), 27 states have call predecessors, (101), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-16 17:21:26,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 945 transitions. [2023-12-16 17:21:26,523 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 945 transitions. Word has length 79 [2023-12-16 17:21:26,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:21:26,523 INFO L495 AbstractCegarLoop]: Abstraction has 569 states and 945 transitions. [2023-12-16 17:21:26,523 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, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 17:21:26,523 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 945 transitions. [2023-12-16 17:21:26,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-16 17:21:26,524 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:21:26,524 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:21:26,535 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 [2023-12-16 17:21:26,733 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 [2023-12-16 17:21:26,733 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:21:26,733 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:21:26,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1868862240, now seen corresponding path program 1 times [2023-12-16 17:21:26,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:21:26,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [390166741] [2023-12-16 17:21:26,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:21:26,734 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 [2023-12-16 17:21:26,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:21:26,735 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) [2023-12-16 17:21:26,769 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 [2023-12-16 17:21:26,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:21:27,008 INFO L262 TraceCheckSpWp]: Trace formula consists of 885 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 17:21:27,011 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:21:27,049 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:21:27,049 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:21:27,050 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:21:27,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [390166741] [2023-12-16 17:21:27,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [390166741] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:21:27,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:21:27,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:21:27,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163494164] [2023-12-16 17:21:27,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:21:27,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:21:27,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:21:27,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:21:27,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:21:27,051 INFO L87 Difference]: Start difference. First operand 569 states and 945 transitions. Second operand has 7 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-16 17:21:27,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:21:27,216 INFO L93 Difference]: Finished difference Result 1142 states and 1904 transitions. [2023-12-16 17:21:27,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 17:21:27,217 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 80 [2023-12-16 17:21:27,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:21:27,219 INFO L225 Difference]: With dead ends: 1142 [2023-12-16 17:21:27,219 INFO L226 Difference]: Without dead ends: 589 [2023-12-16 17:21:27,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:21:27,222 INFO L413 NwaCegarLoop]: 916 mSDtfsCounter, 146 mSDsluCounter, 4475 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 5391 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:21:27,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 5391 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:21:27,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2023-12-16 17:21:27,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 587. [2023-12-16 17:21:27,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 456 states have (on average 1.6951754385964912) internal successors, (773), 479 states have internal predecessors, (773), 102 states have call successors, (102), 27 states have call predecessors, (102), 28 states have return successors, (100), 94 states have call predecessors, (100), 97 states have call successors, (100) [2023-12-16 17:21:27,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 975 transitions. [2023-12-16 17:21:27,234 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 975 transitions. Word has length 80 [2023-12-16 17:21:27,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:21:27,234 INFO L495 AbstractCegarLoop]: Abstraction has 587 states and 975 transitions. [2023-12-16 17:21:27,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-16 17:21:27,234 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 975 transitions. [2023-12-16 17:21:27,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-16 17:21:27,235 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:21:27,235 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:21:27,268 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 [2023-12-16 17:21:27,444 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 [2023-12-16 17:21:27,444 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:21:27,445 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:21:27,445 INFO L85 PathProgramCache]: Analyzing trace with hash -2115175327, now seen corresponding path program 1 times [2023-12-16 17:21:27,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:21:27,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [376382893] [2023-12-16 17:21:27,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:21:27,445 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 [2023-12-16 17:21:27,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:21:27,446 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) [2023-12-16 17:21:27,447 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 [2023-12-16 17:21:27,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:21:27,797 INFO L262 TraceCheckSpWp]: Trace formula consists of 885 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:21:27,800 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:21:27,820 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-16 17:21:27,820 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:21:27,820 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:21:27,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [376382893] [2023-12-16 17:21:27,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [376382893] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:21:27,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:21:27,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:21:27,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025699717] [2023-12-16 17:21:27,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:21:27,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:21:27,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:21:27,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:21:27,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:21:27,821 INFO L87 Difference]: Start difference. First operand 587 states and 975 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, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 17:21:27,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:21:27,899 INFO L93 Difference]: Finished difference Result 1154 states and 1925 transitions. [2023-12-16 17:21:27,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:21:27,900 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, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 80 [2023-12-16 17:21:27,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:21:27,903 INFO L225 Difference]: With dead ends: 1154 [2023-12-16 17:21:27,903 INFO L226 Difference]: Without dead ends: 583 [2023-12-16 17:21:27,905 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:21:27,905 INFO L413 NwaCegarLoop]: 917 mSDtfsCounter, 8 mSDsluCounter, 1827 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2744 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:21:27,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2744 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:21:27,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2023-12-16 17:21:27,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 583. [2023-12-16 17:21:27,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 583 states, 454 states have (on average 1.696035242290749) internal successors, (770), 476 states have internal predecessors, (770), 101 states have call successors, (101), 27 states have call predecessors, (101), 27 states have return successors, (97), 93 states have call predecessors, (97), 96 states have call successors, (97) [2023-12-16 17:21:27,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 968 transitions. [2023-12-16 17:21:27,917 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 968 transitions. Word has length 80 [2023-12-16 17:21:27,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:21:27,917 INFO L495 AbstractCegarLoop]: Abstraction has 583 states and 968 transitions. [2023-12-16 17:21:27,917 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, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 17:21:27,918 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 968 transitions. [2023-12-16 17:21:27,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-16 17:21:27,918 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:21:27,918 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:21:27,930 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 [2023-12-16 17:21:28,127 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 [2023-12-16 17:21:28,128 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:21:28,128 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:21:28,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1117367225, now seen corresponding path program 1 times [2023-12-16 17:21:28,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:21:28,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [968174619] [2023-12-16 17:21:28,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:21:28,129 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 [2023-12-16 17:21:28,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:21:28,132 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) [2023-12-16 17:21:28,168 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 [2023-12-16 17:21:28,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:21:28,455 INFO L262 TraceCheckSpWp]: Trace formula consists of 886 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:21:28,457 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:21:28,497 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:21:28,497 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:21:28,497 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:21:28,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [968174619] [2023-12-16 17:21:28,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [968174619] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:21:28,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:21:28,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:21:28,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731324544] [2023-12-16 17:21:28,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:21:28,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:21:28,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:21:28,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:21:28,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:21:28,499 INFO L87 Difference]: Start difference. First operand 583 states and 968 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 17:21:28,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:21:28,665 INFO L93 Difference]: Finished difference Result 1178 states and 1968 transitions. [2023-12-16 17:21:28,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:21:28,666 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 81 [2023-12-16 17:21:28,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:21:28,672 INFO L225 Difference]: With dead ends: 1178 [2023-12-16 17:21:28,672 INFO L226 Difference]: Without dead ends: 583 [2023-12-16 17:21:28,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:21:28,676 INFO L413 NwaCegarLoop]: 864 mSDtfsCounter, 132 mSDsluCounter, 1690 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 2554 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:21:28,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 2554 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:21:28,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2023-12-16 17:21:28,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 583. [2023-12-16 17:21:28,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 583 states, 454 states have (on average 1.6850220264317182) internal successors, (765), 476 states have internal predecessors, (765), 101 states have call successors, (101), 27 states have call predecessors, (101), 27 states have return successors, (97), 93 states have call predecessors, (97), 96 states have call successors, (97) [2023-12-16 17:21:28,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 963 transitions. [2023-12-16 17:21:28,691 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 963 transitions. Word has length 81 [2023-12-16 17:21:28,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:21:28,692 INFO L495 AbstractCegarLoop]: Abstraction has 583 states and 963 transitions. [2023-12-16 17:21:28,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 17:21:28,692 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 963 transitions. [2023-12-16 17:21:28,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-16 17:21:28,693 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:21:28,693 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:21:28,705 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 [2023-12-16 17:21:28,902 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 [2023-12-16 17:21:28,903 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:21:28,903 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:21:28,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1632780383, now seen corresponding path program 1 times [2023-12-16 17:21:28,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:21:28,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1705032692] [2023-12-16 17:21:28,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:21:28,904 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 [2023-12-16 17:21:28,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:21:28,905 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) [2023-12-16 17:21:28,906 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 [2023-12-16 17:21:29,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:21:29,181 INFO L262 TraceCheckSpWp]: Trace formula consists of 888 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:21:29,184 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:21:29,203 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:21:29,203 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:21:29,203 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:21:29,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1705032692] [2023-12-16 17:21:29,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1705032692] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:21:29,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:21:29,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:21:29,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087719854] [2023-12-16 17:21:29,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:21:29,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:21:29,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:21:29,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:21:29,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:21:29,204 INFO L87 Difference]: Start difference. First operand 583 states and 963 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 17:21:29,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:21:29,380 INFO L93 Difference]: Finished difference Result 1178 states and 1958 transitions. [2023-12-16 17:21:29,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:21:29,380 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 83 [2023-12-16 17:21:29,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:21:29,383 INFO L225 Difference]: With dead ends: 1178 [2023-12-16 17:21:29,383 INFO L226 Difference]: Without dead ends: 583 [2023-12-16 17:21:29,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:21:29,386 INFO L413 NwaCegarLoop]: 864 mSDtfsCounter, 126 mSDsluCounter, 1690 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 2554 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:21:29,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 2554 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:21:29,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2023-12-16 17:21:29,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 583. [2023-12-16 17:21:29,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 583 states, 454 states have (on average 1.6740088105726871) internal successors, (760), 476 states have internal predecessors, (760), 101 states have call successors, (101), 27 states have call predecessors, (101), 27 states have return successors, (97), 93 states have call predecessors, (97), 96 states have call successors, (97) [2023-12-16 17:21:29,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 958 transitions. [2023-12-16 17:21:29,399 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 958 transitions. Word has length 83 [2023-12-16 17:21:29,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:21:29,399 INFO L495 AbstractCegarLoop]: Abstraction has 583 states and 958 transitions. [2023-12-16 17:21:29,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 17:21:29,400 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 958 transitions. [2023-12-16 17:21:29,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-16 17:21:29,400 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:21:29,401 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:21:29,409 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-16 17:21:29,609 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 [2023-12-16 17:21:29,609 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:21:29,610 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:21:29,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1677323139, now seen corresponding path program 1 times [2023-12-16 17:21:29,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:21:29,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1583657788] [2023-12-16 17:21:29,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:21:29,610 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 [2023-12-16 17:21:29,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:21:29,611 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) [2023-12-16 17:21:29,612 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 [2023-12-16 17:21:29,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:21:29,902 INFO L262 TraceCheckSpWp]: Trace formula consists of 890 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:21:29,904 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:21:29,927 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:21:29,927 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:21:29,927 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:21:29,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1583657788] [2023-12-16 17:21:29,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1583657788] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:21:29,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:21:29,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:21:29,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074445801] [2023-12-16 17:21:29,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:21:29,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:21:29,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:21:29,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:21:29,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:21:29,928 INFO L87 Difference]: Start difference. First operand 583 states and 958 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 17:21:30,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:21:30,099 INFO L93 Difference]: Finished difference Result 1199 states and 1979 transitions. [2023-12-16 17:21:30,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:21:30,100 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 85 [2023-12-16 17:21:30,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:21:30,102 INFO L225 Difference]: With dead ends: 1199 [2023-12-16 17:21:30,102 INFO L226 Difference]: Without dead ends: 612 [2023-12-16 17:21:30,104 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:21:30,104 INFO L413 NwaCegarLoop]: 874 mSDtfsCounter, 141 mSDsluCounter, 1690 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 2564 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:21:30,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 2564 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:21:30,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2023-12-16 17:21:30,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 598. [2023-12-16 17:21:30,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 598 states, 469 states have (on average 1.652452025586354) internal successors, (775), 490 states have internal predecessors, (775), 101 states have call successors, (101), 28 states have call predecessors, (101), 27 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-16 17:21:30,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 972 transitions. [2023-12-16 17:21:30,115 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 972 transitions. Word has length 85 [2023-12-16 17:21:30,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:21:30,115 INFO L495 AbstractCegarLoop]: Abstraction has 598 states and 972 transitions. [2023-12-16 17:21:30,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 17:21:30,115 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 972 transitions. [2023-12-16 17:21:30,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-16 17:21:30,116 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:21:30,116 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:21:30,146 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 (12)] Ended with exit code 0 [2023-12-16 17:21:30,325 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 [2023-12-16 17:21:30,325 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:21:30,325 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:21:30,325 INFO L85 PathProgramCache]: Analyzing trace with hash -2039969795, now seen corresponding path program 1 times [2023-12-16 17:21:30,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:21:30,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [49466266] [2023-12-16 17:21:30,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:21:30,326 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 [2023-12-16 17:21:30,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:21:30,327 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) [2023-12-16 17:21:30,360 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 [2023-12-16 17:21:30,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:21:30,692 INFO L262 TraceCheckSpWp]: Trace formula consists of 889 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 17:21:30,694 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:21:30,749 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:21:30,749 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:21:30,750 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:21:30,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [49466266] [2023-12-16 17:21:30,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [49466266] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:21:30,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:21:30,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:21:30,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135653122] [2023-12-16 17:21:30,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:21:30,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:21:30,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:21:30,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:21:30,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:21:30,751 INFO L87 Difference]: Start difference. First operand 598 states and 972 transitions. Second operand has 7 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-16 17:21:30,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:21:30,900 INFO L93 Difference]: Finished difference Result 1164 states and 1901 transitions. [2023-12-16 17:21:30,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 17:21:30,900 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 85 [2023-12-16 17:21:30,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:21:30,903 INFO L225 Difference]: With dead ends: 1164 [2023-12-16 17:21:30,903 INFO L226 Difference]: Without dead ends: 591 [2023-12-16 17:21:30,905 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:21:30,905 INFO L413 NwaCegarLoop]: 917 mSDtfsCounter, 130 mSDsluCounter, 4434 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 5351 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:21:30,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 5351 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:21:30,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2023-12-16 17:21:30,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 577. [2023-12-16 17:21:30,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 448 states have (on average 1.6473214285714286) internal successors, (738), 469 states have internal predecessors, (738), 101 states have call successors, (101), 28 states have call predecessors, (101), 27 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-16 17:21:30,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 935 transitions. [2023-12-16 17:21:30,915 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 935 transitions. Word has length 85 [2023-12-16 17:21:30,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:21:30,915 INFO L495 AbstractCegarLoop]: Abstraction has 577 states and 935 transitions. [2023-12-16 17:21:30,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-16 17:21:30,916 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 935 transitions. [2023-12-16 17:21:30,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-16 17:21:30,916 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:21:30,916 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:21:30,938 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 [2023-12-16 17:21:31,124 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 [2023-12-16 17:21:31,124 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:21:31,124 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:21:31,124 INFO L85 PathProgramCache]: Analyzing trace with hash 95110355, now seen corresponding path program 1 times [2023-12-16 17:21:31,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:21:31,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1331064850] [2023-12-16 17:21:31,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:21:31,125 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 [2023-12-16 17:21:31,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:21:31,126 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) [2023-12-16 17:21:31,158 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 [2023-12-16 17:21:31,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:21:31,410 INFO L262 TraceCheckSpWp]: Trace formula consists of 891 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:21:31,412 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:21:31,435 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:21:31,436 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:21:31,436 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:21:31,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1331064850] [2023-12-16 17:21:31,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1331064850] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:21:31,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:21:31,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:21:31,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803665835] [2023-12-16 17:21:31,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:21:31,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:21:31,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:21:31,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:21:31,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:21:31,437 INFO L87 Difference]: Start difference. First operand 577 states and 935 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 17:21:31,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:21:31,547 INFO L93 Difference]: Finished difference Result 1129 states and 1840 transitions. [2023-12-16 17:21:31,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:21:31,548 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 86 [2023-12-16 17:21:31,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:21:31,553 INFO L225 Difference]: With dead ends: 1129 [2023-12-16 17:21:31,553 INFO L226 Difference]: Without dead ends: 577 [2023-12-16 17:21:31,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:21:31,556 INFO L413 NwaCegarLoop]: 886 mSDtfsCounter, 68 mSDsluCounter, 1690 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 2576 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:21:31,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 2576 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:21:31,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2023-12-16 17:21:31,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 577. [2023-12-16 17:21:31,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 448 states have (on average 1.6450892857142858) internal successors, (737), 469 states have internal predecessors, (737), 101 states have call successors, (101), 28 states have call predecessors, (101), 27 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-16 17:21:31,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 934 transitions. [2023-12-16 17:21:31,572 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 934 transitions. Word has length 86 [2023-12-16 17:21:31,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:21:31,572 INFO L495 AbstractCegarLoop]: Abstraction has 577 states and 934 transitions. [2023-12-16 17:21:31,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 17:21:31,572 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 934 transitions. [2023-12-16 17:21:31,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-16 17:21:31,573 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:21:31,573 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:21:31,584 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 [2023-12-16 17:21:31,788 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 [2023-12-16 17:21:31,788 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:21:31,789 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:21:31,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1217475224, now seen corresponding path program 1 times [2023-12-16 17:21:31,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:21:31,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1318443256] [2023-12-16 17:21:31,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:21:31,789 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 [2023-12-16 17:21:31,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:21:31,795 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) [2023-12-16 17:21:31,797 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 [2023-12-16 17:21:32,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:21:32,077 INFO L262 TraceCheckSpWp]: Trace formula consists of 892 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:21:32,080 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:21:32,104 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:21:32,104 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:21:32,105 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:21:32,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1318443256] [2023-12-16 17:21:32,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1318443256] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:21:32,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:21:32,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:21:32,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890775349] [2023-12-16 17:21:32,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:21:32,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:21:32,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:21:32,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:21:32,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:21:32,106 INFO L87 Difference]: Start difference. First operand 577 states and 934 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 17:21:32,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:21:32,227 INFO L93 Difference]: Finished difference Result 1129 states and 1839 transitions. [2023-12-16 17:21:32,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:21:32,228 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 87 [2023-12-16 17:21:32,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:21:32,230 INFO L225 Difference]: With dead ends: 1129 [2023-12-16 17:21:32,230 INFO L226 Difference]: Without dead ends: 577 [2023-12-16 17:21:32,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:21:32,233 INFO L413 NwaCegarLoop]: 886 mSDtfsCounter, 66 mSDsluCounter, 1690 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 2576 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:21:32,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 2576 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:21:32,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2023-12-16 17:21:32,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 577. [2023-12-16 17:21:32,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 448 states have (on average 1.6428571428571428) internal successors, (736), 469 states have internal predecessors, (736), 101 states have call successors, (101), 28 states have call predecessors, (101), 27 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-16 17:21:32,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 933 transitions. [2023-12-16 17:21:32,244 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 933 transitions. Word has length 87 [2023-12-16 17:21:32,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:21:32,244 INFO L495 AbstractCegarLoop]: Abstraction has 577 states and 933 transitions. [2023-12-16 17:21:32,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 17:21:32,244 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 933 transitions. [2023-12-16 17:21:32,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-16 17:21:32,245 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:21:32,245 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:21:32,297 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 [2023-12-16 17:21:32,460 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 [2023-12-16 17:21:32,460 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:21:32,460 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:21:32,461 INFO L85 PathProgramCache]: Analyzing trace with hash -632418098, now seen corresponding path program 1 times [2023-12-16 17:21:32,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:21:32,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1566086858] [2023-12-16 17:21:32,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:21:32,461 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 [2023-12-16 17:21:32,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:21:32,462 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) [2023-12-16 17:21:32,495 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 [2023-12-16 17:21:32,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:21:32,838 INFO L262 TraceCheckSpWp]: Trace formula consists of 893 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-16 17:21:32,840 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:21:32,905 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:21:32,905 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:21:32,905 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:21:32,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1566086858] [2023-12-16 17:21:32,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1566086858] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:21:32,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:21:32,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 17:21:32,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960416784] [2023-12-16 17:21:32,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:21:32,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 17:21:32,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:21:32,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 17:21:32,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:21:32,906 INFO L87 Difference]: Start difference. First operand 577 states and 933 transitions. Second operand has 8 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-16 17:21:33,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:21:33,101 INFO L93 Difference]: Finished difference Result 1133 states and 1845 transitions. [2023-12-16 17:21:33,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 17:21:33,101 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 88 [2023-12-16 17:21:33,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:21:33,104 INFO L225 Difference]: With dead ends: 1133 [2023-12-16 17:21:33,104 INFO L226 Difference]: Without dead ends: 587 [2023-12-16 17:21:33,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:21:33,106 INFO L413 NwaCegarLoop]: 863 mSDtfsCounter, 81 mSDsluCounter, 5128 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 5991 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:21:33,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 5991 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:21:33,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2023-12-16 17:21:33,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 579. [2023-12-16 17:21:33,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 579 states, 450 states have (on average 1.6377777777777778) internal successors, (737), 471 states have internal predecessors, (737), 101 states have call successors, (101), 28 states have call predecessors, (101), 27 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-16 17:21:33,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 934 transitions. [2023-12-16 17:21:33,133 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 934 transitions. Word has length 88 [2023-12-16 17:21:33,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:21:33,133 INFO L495 AbstractCegarLoop]: Abstraction has 579 states and 934 transitions. [2023-12-16 17:21:33,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-16 17:21:33,134 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 934 transitions. [2023-12-16 17:21:33,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-16 17:21:33,134 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:21:33,134 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:21:33,146 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 [2023-12-16 17:21:33,346 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 [2023-12-16 17:21:33,346 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:21:33,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:21:33,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1363708387, now seen corresponding path program 1 times [2023-12-16 17:21:33,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:21:33,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [793623168] [2023-12-16 17:21:33,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:21:33,347 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 [2023-12-16 17:21:33,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:21:33,348 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) [2023-12-16 17:21:33,349 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 [2023-12-16 17:21:33,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:21:33,636 INFO L262 TraceCheckSpWp]: Trace formula consists of 894 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 17:21:33,638 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:21:33,712 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:21:33,712 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:21:33,712 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:21:33,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [793623168] [2023-12-16 17:21:33,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [793623168] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:21:33,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:21:33,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 17:21:33,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224380327] [2023-12-16 17:21:33,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:21:33,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 17:21:33,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:21:33,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 17:21:33,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:21:33,715 INFO L87 Difference]: Start difference. First operand 579 states and 934 transitions. Second operand has 8 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-16 17:21:33,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:21:33,915 INFO L93 Difference]: Finished difference Result 1125 states and 1826 transitions. [2023-12-16 17:21:33,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 17:21:33,915 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 89 [2023-12-16 17:21:33,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:21:33,918 INFO L225 Difference]: With dead ends: 1125 [2023-12-16 17:21:33,918 INFO L226 Difference]: Without dead ends: 583 [2023-12-16 17:21:33,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:21:33,920 INFO L413 NwaCegarLoop]: 865 mSDtfsCounter, 71 mSDsluCounter, 5124 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 5989 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:21:33,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 5989 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:21:33,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2023-12-16 17:21:33,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 581. [2023-12-16 17:21:33,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 452 states have (on average 1.6327433628318584) internal successors, (738), 473 states have internal predecessors, (738), 101 states have call successors, (101), 28 states have call predecessors, (101), 27 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-16 17:21:33,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 935 transitions. [2023-12-16 17:21:33,931 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 935 transitions. Word has length 89 [2023-12-16 17:21:33,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:21:33,931 INFO L495 AbstractCegarLoop]: Abstraction has 581 states and 935 transitions. [2023-12-16 17:21:33,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-16 17:21:33,932 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 935 transitions. [2023-12-16 17:21:33,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-16 17:21:33,932 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:21:33,932 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:21:33,958 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 [2023-12-16 17:21:34,141 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 [2023-12-16 17:21:34,142 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:21:34,142 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:21:34,142 INFO L85 PathProgramCache]: Analyzing trace with hash 700317368, now seen corresponding path program 1 times [2023-12-16 17:21:34,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:21:34,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [458231253] [2023-12-16 17:21:34,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:21:34,143 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 [2023-12-16 17:21:34,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:21:34,143 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) [2023-12-16 17:21:34,179 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 [2023-12-16 17:21:34,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:21:34,427 INFO L262 TraceCheckSpWp]: Trace formula consists of 895 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 17:21:34,429 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:21:34,470 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-16 17:21:34,471 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:21:34,471 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:21:34,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [458231253] [2023-12-16 17:21:34,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [458231253] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:21:34,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:21:34,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:21:34,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551112119] [2023-12-16 17:21:34,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:21:34,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:21:34,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:21:34,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:21:34,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:21:34,472 INFO L87 Difference]: Start difference. First operand 581 states and 935 transitions. Second operand has 7 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-16 17:21:34,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:21:34,610 INFO L93 Difference]: Finished difference Result 1073 states and 1755 transitions. [2023-12-16 17:21:34,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 17:21:34,611 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 90 [2023-12-16 17:21:34,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:21:34,613 INFO L225 Difference]: With dead ends: 1073 [2023-12-16 17:21:34,613 INFO L226 Difference]: Without dead ends: 574 [2023-12-16 17:21:34,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:21:34,615 INFO L413 NwaCegarLoop]: 875 mSDtfsCounter, 54 mSDsluCounter, 4314 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 5189 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:21:34,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 5189 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:21:34,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2023-12-16 17:21:34,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 574. [2023-12-16 17:21:34,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 445 states have (on average 1.6404494382022472) internal successors, (730), 466 states have internal predecessors, (730), 101 states have call successors, (101), 28 states have call predecessors, (101), 27 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-16 17:21:34,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 927 transitions. [2023-12-16 17:21:34,626 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 927 transitions. Word has length 90 [2023-12-16 17:21:34,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:21:34,626 INFO L495 AbstractCegarLoop]: Abstraction has 574 states and 927 transitions. [2023-12-16 17:21:34,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-16 17:21:34,626 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 927 transitions. [2023-12-16 17:21:34,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 17:21:34,627 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:21:34,627 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:21:34,637 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 [2023-12-16 17:21:34,835 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 [2023-12-16 17:21:34,836 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:21:34,836 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:21:34,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1346778247, now seen corresponding path program 1 times [2023-12-16 17:21:34,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:21:34,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [909976588] [2023-12-16 17:21:34,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:21:34,837 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 [2023-12-16 17:21:34,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:21:34,837 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) [2023-12-16 17:21:34,872 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 [2023-12-16 17:21:35,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:21:35,120 INFO L262 TraceCheckSpWp]: Trace formula consists of 896 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 17:21:35,122 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:21:35,196 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-16 17:21:35,196 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:21:35,196 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:21:35,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [909976588] [2023-12-16 17:21:35,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [909976588] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:21:35,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:21:35,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:21:35,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680522588] [2023-12-16 17:21:35,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:21:35,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:21:35,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:21:35,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:21:35,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:21:35,200 INFO L87 Difference]: Start difference. First operand 574 states and 927 transitions. Second operand has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-16 17:21:35,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:21:35,385 INFO L93 Difference]: Finished difference Result 1078 states and 1769 transitions. [2023-12-16 17:21:35,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 17:21:35,385 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 91 [2023-12-16 17:21:35,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:21:35,388 INFO L225 Difference]: With dead ends: 1078 [2023-12-16 17:21:35,388 INFO L226 Difference]: Without dead ends: 571 [2023-12-16 17:21:35,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:21:35,390 INFO L413 NwaCegarLoop]: 869 mSDtfsCounter, 95 mSDsluCounter, 4288 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 5157 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:21:35,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 5157 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:21:35,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2023-12-16 17:21:35,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 571. [2023-12-16 17:21:35,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 442 states have (on average 1.6402714932126696) internal successors, (725), 463 states have internal predecessors, (725), 101 states have call successors, (101), 28 states have call predecessors, (101), 27 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-16 17:21:35,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 922 transitions. [2023-12-16 17:21:35,406 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 922 transitions. Word has length 91 [2023-12-16 17:21:35,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:21:35,406 INFO L495 AbstractCegarLoop]: Abstraction has 571 states and 922 transitions. [2023-12-16 17:21:35,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-16 17:21:35,406 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 922 transitions. [2023-12-16 17:21:35,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 17:21:35,408 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:21:35,408 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:21:35,432 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 (19)] Ended with exit code 0 [2023-12-16 17:21:35,617 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 [2023-12-16 17:21:35,617 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:21:35,617 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:21:35,617 INFO L85 PathProgramCache]: Analyzing trace with hash -723599623, now seen corresponding path program 1 times [2023-12-16 17:21:35,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:21:35,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1358606733] [2023-12-16 17:21:35,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:21:35,618 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 [2023-12-16 17:21:35,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:21:35,619 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) [2023-12-16 17:21:35,648 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 [2023-12-16 17:21:35,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:21:35,932 INFO L262 TraceCheckSpWp]: Trace formula consists of 895 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 17:21:35,934 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:21:35,974 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-16 17:21:35,974 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:21:35,974 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:21:35,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1358606733] [2023-12-16 17:21:35,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1358606733] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:21:35,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:21:35,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:21:35,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269555870] [2023-12-16 17:21:35,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:21:35,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:21:35,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:21:35,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:21:35,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:21:35,976 INFO L87 Difference]: Start difference. First operand 571 states and 922 transitions. Second operand has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-16 17:21:36,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:21:36,111 INFO L93 Difference]: Finished difference Result 1075 states and 1764 transitions. [2023-12-16 17:21:36,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 17:21:36,113 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 91 [2023-12-16 17:21:36,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:21:36,116 INFO L225 Difference]: With dead ends: 1075 [2023-12-16 17:21:36,116 INFO L226 Difference]: Without dead ends: 563 [2023-12-16 17:21:36,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:21:36,118 INFO L413 NwaCegarLoop]: 868 mSDtfsCounter, 103 mSDsluCounter, 4279 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 5147 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:21:36,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 5147 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:21:36,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2023-12-16 17:21:36,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 563. [2023-12-16 17:21:36,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 434 states have (on average 1.6451612903225807) internal successors, (714), 455 states have internal predecessors, (714), 101 states have call successors, (101), 28 states have call predecessors, (101), 27 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-16 17:21:36,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 911 transitions. [2023-12-16 17:21:36,141 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 911 transitions. Word has length 91 [2023-12-16 17:21:36,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:21:36,141 INFO L495 AbstractCegarLoop]: Abstraction has 563 states and 911 transitions. [2023-12-16 17:21:36,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-16 17:21:36,141 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 911 transitions. [2023-12-16 17:21:36,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-16 17:21:36,142 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:21:36,142 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:21:36,166 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2023-12-16 17:21:36,351 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 [2023-12-16 17:21:36,351 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:21:36,351 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:21:36,351 INFO L85 PathProgramCache]: Analyzing trace with hash 695039540, now seen corresponding path program 1 times [2023-12-16 17:21:36,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:21:36,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [987645082] [2023-12-16 17:21:36,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:21:36,352 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 [2023-12-16 17:21:36,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:21:36,353 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) [2023-12-16 17:21:36,357 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 [2023-12-16 17:21:36,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:21:36,641 INFO L262 TraceCheckSpWp]: Trace formula consists of 897 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-16 17:21:36,643 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:21:36,718 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-16 17:21:36,719 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:21:36,719 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:21:36,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [987645082] [2023-12-16 17:21:36,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [987645082] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:21:36,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:21:36,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 17:21:36,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006933590] [2023-12-16 17:21:36,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:21:36,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 17:21:36,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:21:36,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 17:21:36,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:21:36,720 INFO L87 Difference]: Start difference. First operand 563 states and 911 transitions. Second operand has 8 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-16 17:21:36,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:21:36,894 INFO L93 Difference]: Finished difference Result 1061 states and 1742 transitions. [2023-12-16 17:21:36,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 17:21:36,895 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 92 [2023-12-16 17:21:36,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:21:36,897 INFO L225 Difference]: With dead ends: 1061 [2023-12-16 17:21:36,897 INFO L226 Difference]: Without dead ends: 563 [2023-12-16 17:21:36,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:21:36,900 INFO L413 NwaCegarLoop]: 862 mSDtfsCounter, 52 mSDsluCounter, 5115 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 5977 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:21:36,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 5977 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:21:36,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2023-12-16 17:21:36,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 563. [2023-12-16 17:21:36,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 434 states have (on average 1.6428571428571428) internal successors, (713), 455 states have internal predecessors, (713), 101 states have call successors, (101), 28 states have call predecessors, (101), 27 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-16 17:21:36,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 910 transitions. [2023-12-16 17:21:36,915 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 910 transitions. Word has length 92 [2023-12-16 17:21:36,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:21:36,915 INFO L495 AbstractCegarLoop]: Abstraction has 563 states and 910 transitions. [2023-12-16 17:21:36,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-16 17:21:36,915 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 910 transitions. [2023-12-16 17:21:36,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-16 17:21:36,916 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:21:36,916 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:21:36,943 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 (21)] Ended with exit code 0 [2023-12-16 17:21:37,124 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 [2023-12-16 17:21:37,125 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:21:37,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:21:37,125 INFO L85 PathProgramCache]: Analyzing trace with hash -847085669, now seen corresponding path program 1 times [2023-12-16 17:21:37,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:21:37,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [880377558] [2023-12-16 17:21:37,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:21:37,126 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 [2023-12-16 17:21:37,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:21:37,127 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) [2023-12-16 17:21:37,160 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 [2023-12-16 17:21:37,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:21:37,405 INFO L262 TraceCheckSpWp]: Trace formula consists of 898 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-16 17:21:37,407 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:21:37,456 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-16 17:21:37,456 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:21:37,456 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:21:37,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [880377558] [2023-12-16 17:21:37,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [880377558] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:21:37,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:21:37,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 17:21:37,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897348027] [2023-12-16 17:21:37,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:21:37,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 17:21:37,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:21:37,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 17:21:37,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:21:37,458 INFO L87 Difference]: Start difference. First operand 563 states and 910 transitions. Second operand has 8 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-16 17:21:37,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:21:37,633 INFO L93 Difference]: Finished difference Result 1103 states and 1797 transitions. [2023-12-16 17:21:37,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 17:21:37,633 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 93 [2023-12-16 17:21:37,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:21:37,636 INFO L225 Difference]: With dead ends: 1103 [2023-12-16 17:21:37,636 INFO L226 Difference]: Without dead ends: 560 [2023-12-16 17:21:37,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:21:37,638 INFO L413 NwaCegarLoop]: 852 mSDtfsCounter, 73 mSDsluCounter, 5069 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 5921 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:21:37,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 5921 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:21:37,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2023-12-16 17:21:37,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 560. [2023-12-16 17:21:37,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 431 states have (on average 1.6357308584686774) internal successors, (705), 452 states have internal predecessors, (705), 101 states have call successors, (101), 28 states have call predecessors, (101), 27 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-16 17:21:37,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 902 transitions. [2023-12-16 17:21:37,648 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 902 transitions. Word has length 93 [2023-12-16 17:21:37,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:21:37,648 INFO L495 AbstractCegarLoop]: Abstraction has 560 states and 902 transitions. [2023-12-16 17:21:37,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-16 17:21:37,648 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 902 transitions. [2023-12-16 17:21:37,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-16 17:21:37,649 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:21:37,649 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:21:37,659 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 [2023-12-16 17:21:37,858 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 [2023-12-16 17:21:37,858 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:21:37,858 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:21:37,858 INFO L85 PathProgramCache]: Analyzing trace with hash -1834241489, now seen corresponding path program 1 times [2023-12-16 17:21:37,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:21:37,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1135178247] [2023-12-16 17:21:37,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:21:37,859 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 [2023-12-16 17:21:37,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:21:37,860 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) [2023-12-16 17:21:37,867 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 [2023-12-16 17:21:38,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:21:38,170 INFO L262 TraceCheckSpWp]: Trace formula consists of 899 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 17:21:38,171 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:21:38,222 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-16 17:21:38,222 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:21:38,222 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:21:38,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1135178247] [2023-12-16 17:21:38,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1135178247] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:21:38,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:21:38,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 17:21:38,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971246135] [2023-12-16 17:21:38,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:21:38,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 17:21:38,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:21:38,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 17:21:38,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:21:38,223 INFO L87 Difference]: Start difference. First operand 560 states and 902 transitions. Second operand has 8 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-16 17:21:38,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:21:38,393 INFO L93 Difference]: Finished difference Result 1052 states and 1722 transitions. [2023-12-16 17:21:38,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 17:21:38,394 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 94 [2023-12-16 17:21:38,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:21:38,396 INFO L225 Difference]: With dead ends: 1052 [2023-12-16 17:21:38,396 INFO L226 Difference]: Without dead ends: 560 [2023-12-16 17:21:38,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:21:38,397 INFO L413 NwaCegarLoop]: 851 mSDtfsCounter, 47 mSDsluCounter, 5062 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 5913 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:21:38,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 5913 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:21:38,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2023-12-16 17:21:38,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 560. [2023-12-16 17:21:38,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 431 states have (on average 1.6334106728538282) internal successors, (704), 452 states have internal predecessors, (704), 101 states have call successors, (101), 28 states have call predecessors, (101), 27 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-16 17:21:38,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 901 transitions. [2023-12-16 17:21:38,417 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 901 transitions. Word has length 94 [2023-12-16 17:21:38,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:21:38,417 INFO L495 AbstractCegarLoop]: Abstraction has 560 states and 901 transitions. [2023-12-16 17:21:38,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-16 17:21:38,418 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 901 transitions. [2023-12-16 17:21:38,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-16 17:21:38,418 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:21:38,418 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:21:38,428 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 [2023-12-16 17:21:38,626 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 [2023-12-16 17:21:38,626 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:21:38,627 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:21:38,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1006718026, now seen corresponding path program 1 times [2023-12-16 17:21:38,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:21:38,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [328350471] [2023-12-16 17:21:38,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:21:38,627 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 [2023-12-16 17:21:38,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:21:38,628 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) [2023-12-16 17:21:38,629 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 [2023-12-16 17:21:38,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:21:38,911 INFO L262 TraceCheckSpWp]: Trace formula consists of 900 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 17:21:38,913 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:21:38,990 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-16 17:21:38,990 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:21:38,990 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:21:38,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [328350471] [2023-12-16 17:21:38,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [328350471] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:21:38,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:21:38,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 17:21:38,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930993584] [2023-12-16 17:21:38,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:21:38,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 17:21:38,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:21:38,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 17:21:38,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:21:38,992 INFO L87 Difference]: Start difference. First operand 560 states and 901 transitions. Second operand has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-16 17:21:39,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:21:39,159 INFO L93 Difference]: Finished difference Result 1088 states and 1765 transitions. [2023-12-16 17:21:39,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 17:21:39,160 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 95 [2023-12-16 17:21:39,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:21:39,163 INFO L225 Difference]: With dead ends: 1088 [2023-12-16 17:21:39,163 INFO L226 Difference]: Without dead ends: 557 [2023-12-16 17:21:39,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:21:39,165 INFO L413 NwaCegarLoop]: 851 mSDtfsCounter, 63 mSDsluCounter, 5054 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 5905 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:21:39,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 5905 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:21:39,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2023-12-16 17:21:39,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 557. [2023-12-16 17:21:39,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 428 states have (on average 1.6261682242990654) internal successors, (696), 449 states have internal predecessors, (696), 101 states have call successors, (101), 28 states have call predecessors, (101), 27 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-16 17:21:39,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 893 transitions. [2023-12-16 17:21:39,177 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 893 transitions. Word has length 95 [2023-12-16 17:21:39,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:21:39,177 INFO L495 AbstractCegarLoop]: Abstraction has 557 states and 893 transitions. [2023-12-16 17:21:39,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-16 17:21:39,177 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 893 transitions. [2023-12-16 17:21:39,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-16 17:21:39,178 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:21:39,178 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:21:39,189 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2023-12-16 17:21:39,387 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 [2023-12-16 17:21:39,388 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:21:39,388 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:21:39,388 INFO L85 PathProgramCache]: Analyzing trace with hash 43716458, now seen corresponding path program 1 times [2023-12-16 17:21:39,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:21:39,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1415681505] [2023-12-16 17:21:39,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:21:39,388 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 [2023-12-16 17:21:39,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:21:39,389 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) [2023-12-16 17:21:39,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-16 17:21:39,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:21:39,677 INFO L262 TraceCheckSpWp]: Trace formula consists of 901 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 17:21:39,680 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:21:39,999 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-16 17:21:39,999 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:21:39,999 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:21:39,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1415681505] [2023-12-16 17:21:39,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1415681505] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:21:39,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:21:39,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 17:21:39,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177364757] [2023-12-16 17:21:39,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:21:40,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:21:40,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:21:40,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:21:40,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:21:40,000 INFO L87 Difference]: Start difference. First operand 557 states and 893 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 6 states have internal predecessors, (64), 4 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-16 17:21:43,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:21:43,286 INFO L93 Difference]: Finished difference Result 2102 states and 3502 transitions. [2023-12-16 17:21:43,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 17:21:43,286 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 6 states have internal predecessors, (64), 4 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) Word has length 96 [2023-12-16 17:21:43,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:21:43,293 INFO L225 Difference]: With dead ends: 2102 [2023-12-16 17:21:43,294 INFO L226 Difference]: Without dead ends: 1617 [2023-12-16 17:21:43,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:21:43,296 INFO L413 NwaCegarLoop]: 590 mSDtfsCounter, 4373 mSDsluCounter, 914 mSDsCounter, 0 mSdLazyCounter, 3096 mSolverCounterSat, 884 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4555 SdHoareTripleChecker+Valid, 1504 SdHoareTripleChecker+Invalid, 3980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 884 IncrementalHoareTripleChecker+Valid, 3096 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:21:43,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4555 Valid, 1504 Invalid, 3980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [884 Valid, 3096 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-12-16 17:21:43,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1617 states. [2023-12-16 17:21:43,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1617 to 1430. [2023-12-16 17:21:43,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1430 states, 1114 states have (on average 1.6768402154398563) internal successors, (1868), 1153 states have internal predecessors, (1868), 254 states have call successors, (254), 60 states have call predecessors, (254), 61 states have return successors, (259), 231 states have call predecessors, (259), 249 states have call successors, (259) [2023-12-16 17:21:43,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1430 states to 1430 states and 2381 transitions. [2023-12-16 17:21:43,420 INFO L78 Accepts]: Start accepts. Automaton has 1430 states and 2381 transitions. Word has length 96 [2023-12-16 17:21:43,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:21:43,420 INFO L495 AbstractCegarLoop]: Abstraction has 1430 states and 2381 transitions. [2023-12-16 17:21:43,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 6 states have internal predecessors, (64), 4 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-16 17:21:43,421 INFO L276 IsEmpty]: Start isEmpty. Operand 1430 states and 2381 transitions. [2023-12-16 17:21:43,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-16 17:21:43,436 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:21:43,437 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:21:43,445 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 [2023-12-16 17:21:43,645 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 [2023-12-16 17:21:43,645 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:21:43,646 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:21:43,646 INFO L85 PathProgramCache]: Analyzing trace with hash 58284954, now seen corresponding path program 1 times [2023-12-16 17:21:43,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:21:43,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [914864974] [2023-12-16 17:21:43,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:21:43,646 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 [2023-12-16 17:21:43,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:21:43,647 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) [2023-12-16 17:21:43,696 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 [2023-12-16 17:21:44,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:21:44,027 INFO L262 TraceCheckSpWp]: Trace formula consists of 1077 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-16 17:21:44,030 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:21:44,252 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-16 17:21:44,252 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:21:44,252 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:21:44,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [914864974] [2023-12-16 17:21:44,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [914864974] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:21:44,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:21:44,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 17:21:44,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698548360] [2023-12-16 17:21:44,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:21:44,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 17:21:44,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:21:44,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 17:21:44,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-12-16 17:21:44,254 INFO L87 Difference]: Start difference. First operand 1430 states and 2381 transitions. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 5 states have call successors, (16), 4 states have call predecessors, (16), 5 states have return successors, (15), 6 states have call predecessors, (15), 4 states have call successors, (15) [2023-12-16 17:21:46,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:21:46,357 INFO L93 Difference]: Finished difference Result 2803 states and 4761 transitions. [2023-12-16 17:21:46,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 17:21:46,358 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 5 states have call successors, (16), 4 states have call predecessors, (16), 5 states have return successors, (15), 6 states have call predecessors, (15), 4 states have call successors, (15) Word has length 135 [2023-12-16 17:21:46,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:21:46,365 INFO L225 Difference]: With dead ends: 2803 [2023-12-16 17:21:46,365 INFO L226 Difference]: Without dead ends: 1445 [2023-12-16 17:21:46,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2023-12-16 17:21:46,370 INFO L413 NwaCegarLoop]: 389 mSDtfsCounter, 1331 mSDsluCounter, 1490 mSDsCounter, 0 mSdLazyCounter, 3376 mSolverCounterSat, 406 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1331 SdHoareTripleChecker+Valid, 1879 SdHoareTripleChecker+Invalid, 3782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 406 IncrementalHoareTripleChecker+Valid, 3376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-16 17:21:46,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1331 Valid, 1879 Invalid, 3782 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [406 Valid, 3376 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-16 17:21:46,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1445 states. [2023-12-16 17:21:46,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1445 to 1442. [2023-12-16 17:21:46,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1442 states, 1123 states have (on average 1.6714158504007124) internal successors, (1877), 1162 states have internal predecessors, (1877), 254 states have call successors, (254), 60 states have call predecessors, (254), 64 states have return successors, (307), 234 states have call predecessors, (307), 249 states have call successors, (307) [2023-12-16 17:21:46,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1442 states to 1442 states and 2438 transitions. [2023-12-16 17:21:46,451 INFO L78 Accepts]: Start accepts. Automaton has 1442 states and 2438 transitions. Word has length 135 [2023-12-16 17:21:46,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:21:46,451 INFO L495 AbstractCegarLoop]: Abstraction has 1442 states and 2438 transitions. [2023-12-16 17:21:46,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 5 states have call successors, (16), 4 states have call predecessors, (16), 5 states have return successors, (15), 6 states have call predecessors, (15), 4 states have call successors, (15) [2023-12-16 17:21:46,452 INFO L276 IsEmpty]: Start isEmpty. Operand 1442 states and 2438 transitions. [2023-12-16 17:21:46,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-16 17:21:46,455 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:21:46,455 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:21:46,473 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 [2023-12-16 17:21:46,666 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 [2023-12-16 17:21:46,667 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:21:46,667 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:21:46,667 INFO L85 PathProgramCache]: Analyzing trace with hash -862984805, now seen corresponding path program 1 times [2023-12-16 17:21:46,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:21:46,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2041668264] [2023-12-16 17:21:46,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:21:46,668 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 [2023-12-16 17:21:46,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:21:46,669 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) [2023-12-16 17:21:46,701 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 [2023-12-16 17:21:47,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:21:47,048 INFO L262 TraceCheckSpWp]: Trace formula consists of 1080 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-16 17:21:47,051 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:21:47,173 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-12-16 17:21:47,173 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:21:47,173 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:21:47,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2041668264] [2023-12-16 17:21:47,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2041668264] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:21:47,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:21:47,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 17:21:47,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381417436] [2023-12-16 17:21:47,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:21:47,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 17:21:47,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:21:47,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 17:21:47,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:21:47,176 INFO L87 Difference]: Start difference. First operand 1442 states and 2438 transitions. Second operand has 8 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 5 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) [2023-12-16 17:21:50,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:21:50,798 INFO L93 Difference]: Finished difference Result 4377 states and 7443 transitions. [2023-12-16 17:21:50,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-16 17:21:50,800 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 5 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) Word has length 136 [2023-12-16 17:21:50,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:21:50,813 INFO L225 Difference]: With dead ends: 4377 [2023-12-16 17:21:50,813 INFO L226 Difference]: Without dead ends: 3007 [2023-12-16 17:21:50,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2023-12-16 17:21:50,820 INFO L413 NwaCegarLoop]: 604 mSDtfsCounter, 1961 mSDsluCounter, 1878 mSDsCounter, 0 mSdLazyCounter, 5641 mSolverCounterSat, 637 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2043 SdHoareTripleChecker+Valid, 2482 SdHoareTripleChecker+Invalid, 6278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 637 IncrementalHoareTripleChecker+Valid, 5641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-12-16 17:21:50,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2043 Valid, 2482 Invalid, 6278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [637 Valid, 5641 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-12-16 17:21:50,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3007 states. [2023-12-16 17:21:50,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3007 to 2831. [2023-12-16 17:21:50,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2831 states, 2111 states have (on average 1.6366650876361915) internal successors, (3455), 2197 states have internal predecessors, (3455), 592 states have call successors, (592), 102 states have call predecessors, (592), 127 states have return successors, (699), 564 states have call predecessors, (699), 587 states have call successors, (699) [2023-12-16 17:21:50,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2831 states to 2831 states and 4746 transitions. [2023-12-16 17:21:50,999 INFO L78 Accepts]: Start accepts. Automaton has 2831 states and 4746 transitions. Word has length 136 [2023-12-16 17:21:50,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:21:50,999 INFO L495 AbstractCegarLoop]: Abstraction has 2831 states and 4746 transitions. [2023-12-16 17:21:51,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 5 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) [2023-12-16 17:21:51,000 INFO L276 IsEmpty]: Start isEmpty. Operand 2831 states and 4746 transitions. [2023-12-16 17:21:51,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-16 17:21:51,003 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:21:51,004 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:21:51,015 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2023-12-16 17:21:51,214 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 [2023-12-16 17:21:51,214 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:21:51,215 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:21:51,215 INFO L85 PathProgramCache]: Analyzing trace with hash -728488683, now seen corresponding path program 1 times [2023-12-16 17:21:51,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:21:51,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1107964194] [2023-12-16 17:21:51,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:21:51,215 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 [2023-12-16 17:21:51,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:21:51,224 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) [2023-12-16 17:21:51,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2023-12-16 17:21:51,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:21:51,580 INFO L262 TraceCheckSpWp]: Trace formula consists of 1081 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-16 17:21:51,582 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:21:52,107 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-12-16 17:21:52,107 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:21:52,107 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:21:52,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1107964194] [2023-12-16 17:21:52,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1107964194] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:21:52,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:21:52,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:21:52,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209343308] [2023-12-16 17:21:52,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:21:52,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 17:21:52,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:21:52,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 17:21:52,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:21:52,109 INFO L87 Difference]: Start difference. First operand 2831 states and 4746 transitions. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 7 states have internal predecessors, (92), 5 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) [2023-12-16 17:21:55,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:21:55,762 INFO L93 Difference]: Finished difference Result 6799 states and 11537 transitions. [2023-12-16 17:21:55,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 17:21:55,763 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 7 states have internal predecessors, (92), 5 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) Word has length 137 [2023-12-16 17:21:55,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:21:55,778 INFO L225 Difference]: With dead ends: 6799 [2023-12-16 17:21:55,778 INFO L226 Difference]: Without dead ends: 4040 [2023-12-16 17:21:55,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:21:55,786 INFO L413 NwaCegarLoop]: 580 mSDtfsCounter, 3190 mSDsluCounter, 1191 mSDsCounter, 0 mSdLazyCounter, 4037 mSolverCounterSat, 634 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3363 SdHoareTripleChecker+Valid, 1771 SdHoareTripleChecker+Invalid, 4671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 634 IncrementalHoareTripleChecker+Valid, 4037 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-12-16 17:21:55,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3363 Valid, 1771 Invalid, 4671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [634 Valid, 4037 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-12-16 17:21:55,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4040 states. [2023-12-16 17:21:55,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4040 to 3679. [2023-12-16 17:21:55,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3679 states, 2754 states have (on average 1.6466957153231663) internal successors, (4535), 2868 states have internal predecessors, (4535), 760 states have call successors, (760), 135 states have call predecessors, (760), 164 states have return successors, (883), 708 states have call predecessors, (883), 755 states have call successors, (883) [2023-12-16 17:21:55,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3679 states to 3679 states and 6178 transitions. [2023-12-16 17:21:55,959 INFO L78 Accepts]: Start accepts. Automaton has 3679 states and 6178 transitions. Word has length 137 [2023-12-16 17:21:55,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:21:55,960 INFO L495 AbstractCegarLoop]: Abstraction has 3679 states and 6178 transitions. [2023-12-16 17:21:55,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 7 states have internal predecessors, (92), 5 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) [2023-12-16 17:21:55,960 INFO L276 IsEmpty]: Start isEmpty. Operand 3679 states and 6178 transitions. [2023-12-16 17:21:55,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-16 17:21:55,962 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:21:55,962 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:21:55,975 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 [2023-12-16 17:21:56,172 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 [2023-12-16 17:21:56,173 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:21:56,173 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:21:56,173 INFO L85 PathProgramCache]: Analyzing trace with hash 890402128, now seen corresponding path program 1 times [2023-12-16 17:21:56,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:21:56,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [19790829] [2023-12-16 17:21:56,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:21:56,174 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 [2023-12-16 17:21:56,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:21:56,175 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) [2023-12-16 17:21:56,175 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 [2023-12-16 17:21:56,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:21:56,550 INFO L262 TraceCheckSpWp]: Trace formula consists of 1078 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-16 17:21:56,552 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:21:56,702 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-16 17:21:56,702 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:21:56,702 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:21:56,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [19790829] [2023-12-16 17:21:56,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [19790829] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:21:56,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:21:56,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:21:56,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489386817] [2023-12-16 17:21:56,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:21:56,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:21:56,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:21:56,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:21:56,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:21:56,704 INFO L87 Difference]: Start difference. First operand 3679 states and 6178 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 5 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) [2023-12-16 17:22:00,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:00,399 INFO L93 Difference]: Finished difference Result 11266 states and 19405 transitions. [2023-12-16 17:22:00,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-16 17:22:00,400 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 5 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) Word has length 136 [2023-12-16 17:22:00,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:00,429 INFO L225 Difference]: With dead ends: 11266 [2023-12-16 17:22:00,429 INFO L226 Difference]: Without dead ends: 7659 [2023-12-16 17:22:00,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2023-12-16 17:22:00,444 INFO L413 NwaCegarLoop]: 593 mSDtfsCounter, 2751 mSDsluCounter, 1826 mSDsCounter, 0 mSdLazyCounter, 4660 mSolverCounterSat, 738 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2831 SdHoareTripleChecker+Valid, 2419 SdHoareTripleChecker+Invalid, 5398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 738 IncrementalHoareTripleChecker+Valid, 4660 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:22:00,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2831 Valid, 2419 Invalid, 5398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [738 Valid, 4660 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-12-16 17:22:00,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7659 states. [2023-12-16 17:22:00,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7659 to 7345. [2023-12-16 17:22:00,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7345 states, 5499 states have (on average 1.6264775413711583) internal successors, (8944), 5740 states have internal predecessors, (8944), 1500 states have call successors, (1500), 304 states have call predecessors, (1500), 345 states have return successors, (1763), 1377 states have call predecessors, (1763), 1495 states have call successors, (1763) [2023-12-16 17:22:00,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7345 states to 7345 states and 12207 transitions. [2023-12-16 17:22:00,873 INFO L78 Accepts]: Start accepts. Automaton has 7345 states and 12207 transitions. Word has length 136 [2023-12-16 17:22:00,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:22:00,873 INFO L495 AbstractCegarLoop]: Abstraction has 7345 states and 12207 transitions. [2023-12-16 17:22:00,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 5 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) [2023-12-16 17:22:00,873 INFO L276 IsEmpty]: Start isEmpty. Operand 7345 states and 12207 transitions. [2023-12-16 17:22:00,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-16 17:22:00,875 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:00,875 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:22:00,888 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 (29)] Forceful destruction successful, exit code 0 [2023-12-16 17:22:01,086 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 [2023-12-16 17:22:01,086 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:01,086 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:01,086 INFO L85 PathProgramCache]: Analyzing trace with hash 107976891, now seen corresponding path program 1 times [2023-12-16 17:22:01,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:01,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1831517923] [2023-12-16 17:22:01,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:01,087 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 [2023-12-16 17:22:01,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:01,088 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) [2023-12-16 17:22:01,090 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 [2023-12-16 17:22:01,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:01,472 INFO L262 TraceCheckSpWp]: Trace formula consists of 1088 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-16 17:22:01,475 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:01,716 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-16 17:22:01,716 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:01,716 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:01,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1831517923] [2023-12-16 17:22:01,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1831517923] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:01,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:01,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 17:22:01,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012807076] [2023-12-16 17:22:01,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:01,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 17:22:01,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:01,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 17:22:01,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-12-16 17:22:01,718 INFO L87 Difference]: Start difference. First operand 7345 states and 12207 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 5 states have call successors, (17), 5 states have call predecessors, (17), 5 states have return successors, (16), 6 states have call predecessors, (16), 4 states have call successors, (16) [2023-12-16 17:22:06,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:06,812 INFO L93 Difference]: Finished difference Result 21664 states and 36785 transitions. [2023-12-16 17:22:06,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-16 17:22:06,813 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 5 states have call successors, (17), 5 states have call predecessors, (17), 5 states have return successors, (16), 6 states have call predecessors, (16), 4 states have call successors, (16) Word has length 142 [2023-12-16 17:22:06,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:06,893 INFO L225 Difference]: With dead ends: 21664 [2023-12-16 17:22:06,893 INFO L226 Difference]: Without dead ends: 14355 [2023-12-16 17:22:06,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2023-12-16 17:22:06,915 INFO L413 NwaCegarLoop]: 704 mSDtfsCounter, 3268 mSDsluCounter, 2151 mSDsCounter, 0 mSdLazyCounter, 6602 mSolverCounterSat, 802 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3406 SdHoareTripleChecker+Valid, 2855 SdHoareTripleChecker+Invalid, 7404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 802 IncrementalHoareTripleChecker+Valid, 6602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:22:06,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3406 Valid, 2855 Invalid, 7404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [802 Valid, 6602 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2023-12-16 17:22:06,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14355 states. [2023-12-16 17:22:07,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14355 to 13895. [2023-12-16 17:22:07,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13895 states, 10115 states have (on average 1.6055363321799307) internal successors, (16240), 10654 states have internal predecessors, (16240), 3131 states have call successors, (3131), 510 states have call predecessors, (3131), 648 states have return successors, (3913), 2996 states have call predecessors, (3913), 3126 states have call successors, (3913) [2023-12-16 17:22:08,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13895 states to 13895 states and 23284 transitions. [2023-12-16 17:22:08,030 INFO L78 Accepts]: Start accepts. Automaton has 13895 states and 23284 transitions. Word has length 142 [2023-12-16 17:22:08,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:22:08,030 INFO L495 AbstractCegarLoop]: Abstraction has 13895 states and 23284 transitions. [2023-12-16 17:22:08,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 5 states have call successors, (17), 5 states have call predecessors, (17), 5 states have return successors, (16), 6 states have call predecessors, (16), 4 states have call successors, (16) [2023-12-16 17:22:08,031 INFO L276 IsEmpty]: Start isEmpty. Operand 13895 states and 23284 transitions. [2023-12-16 17:22:08,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-16 17:22:08,033 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:08,033 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:22:08,044 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2023-12-16 17:22:08,243 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 [2023-12-16 17:22:08,243 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:08,244 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:08,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1717011158, now seen corresponding path program 1 times [2023-12-16 17:22:08,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:08,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [414576728] [2023-12-16 17:22:08,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:08,244 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 [2023-12-16 17:22:08,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:08,245 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) [2023-12-16 17:22:08,247 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 [2023-12-16 17:22:08,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:08,626 INFO L262 TraceCheckSpWp]: Trace formula consists of 1089 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 17:22:08,629 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:08,809 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-16 17:22:08,809 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:08,809 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:08,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [414576728] [2023-12-16 17:22:08,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [414576728] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:08,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:08,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 17:22:08,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091436702] [2023-12-16 17:22:08,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:08,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 17:22:08,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:08,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 17:22:08,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:22:08,810 INFO L87 Difference]: Start difference. First operand 13895 states and 23284 transitions. Second operand has 6 states, 6 states have (on average 16.5) internal successors, (99), 6 states have internal predecessors, (99), 5 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) [2023-12-16 17:22:13,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:13,865 INFO L93 Difference]: Finished difference Result 44069 states and 76059 transitions. [2023-12-16 17:22:13,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:22:13,866 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 6 states have internal predecessors, (99), 5 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) Word has length 143 [2023-12-16 17:22:13,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:14,004 INFO L225 Difference]: With dead ends: 44069 [2023-12-16 17:22:14,004 INFO L226 Difference]: Without dead ends: 30249 [2023-12-16 17:22:14,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:22:14,053 INFO L413 NwaCegarLoop]: 704 mSDtfsCounter, 2198 mSDsluCounter, 1045 mSDsCounter, 0 mSdLazyCounter, 3310 mSolverCounterSat, 545 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2335 SdHoareTripleChecker+Valid, 1749 SdHoareTripleChecker+Invalid, 3855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 545 IncrementalHoareTripleChecker+Valid, 3310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-16 17:22:14,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2335 Valid, 1749 Invalid, 3855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [545 Valid, 3310 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-16 17:22:14,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30249 states. [2023-12-16 17:22:16,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30249 to 29716. [2023-12-16 17:22:16,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29716 states, 21007 states have (on average 1.591041081544247) internal successors, (33423), 22300 states have internal predecessors, (33423), 7381 states have call successors, (7381), 929 states have call predecessors, (7381), 1327 states have return successors, (10144), 7263 states have call predecessors, (10144), 7376 states have call successors, (10144) [2023-12-16 17:22:16,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29716 states to 29716 states and 50948 transitions. [2023-12-16 17:22:16,598 INFO L78 Accepts]: Start accepts. Automaton has 29716 states and 50948 transitions. Word has length 143 [2023-12-16 17:22:16,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:22:16,598 INFO L495 AbstractCegarLoop]: Abstraction has 29716 states and 50948 transitions. [2023-12-16 17:22:16,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 6 states have internal predecessors, (99), 5 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) [2023-12-16 17:22:16,598 INFO L276 IsEmpty]: Start isEmpty. Operand 29716 states and 50948 transitions. [2023-12-16 17:22:16,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-12-16 17:22:16,601 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:16,601 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:22:16,614 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 [2023-12-16 17:22:16,814 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 [2023-12-16 17:22:16,814 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:16,815 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:16,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1985590840, now seen corresponding path program 1 times [2023-12-16 17:22:16,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:16,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1204020029] [2023-12-16 17:22:16,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:16,815 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 [2023-12-16 17:22:16,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:16,816 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) [2023-12-16 17:22:16,851 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 [2023-12-16 17:22:17,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:17,196 INFO L262 TraceCheckSpWp]: Trace formula consists of 1090 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 17:22:17,198 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:17,384 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-16 17:22:17,384 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:17,384 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:17,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1204020029] [2023-12-16 17:22:17,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1204020029] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:17,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:17,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 17:22:17,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596409158] [2023-12-16 17:22:17,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:17,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 17:22:17,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:17,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 17:22:17,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:22:17,386 INFO L87 Difference]: Start difference. First operand 29716 states and 50948 transitions. Second operand has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 5 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) [2023-12-16 17:22:25,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:25,852 INFO L93 Difference]: Finished difference Result 100126 states and 178293 transitions. [2023-12-16 17:22:25,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:22:25,853 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 5 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) Word has length 144 [2023-12-16 17:22:25,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:26,249 INFO L225 Difference]: With dead ends: 100126 [2023-12-16 17:22:26,250 INFO L226 Difference]: Without dead ends: 70487 [2023-12-16 17:22:26,371 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:22:26,371 INFO L413 NwaCegarLoop]: 710 mSDtfsCounter, 2205 mSDsluCounter, 1060 mSDsCounter, 0 mSdLazyCounter, 3319 mSolverCounterSat, 546 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2343 SdHoareTripleChecker+Valid, 1770 SdHoareTripleChecker+Invalid, 3865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 546 IncrementalHoareTripleChecker+Valid, 3319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-16 17:22:26,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2343 Valid, 1770 Invalid, 3865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [546 Valid, 3319 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-16 17:22:26,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70487 states. Received shutdown request... [2023-12-16 17:22:27,970 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 17:22:27,971 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 17:22:29,001 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 [2023-12-16 17:22:29,001 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 [2023-12-16 17:22:32,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70487 to 69687. [2023-12-16 17:22:32,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69687 states, 47976 states have (on average 1.5805194263798565) internal successors, (75827), 51228 states have internal predecessors, (75827), 18718 states have call successors, (18718), 1767 states have call predecessors, (18718), 2992 states have return successors, (29348), 18854 states have call predecessors, (29348), 18713 states have call successors, (29348) [2023-12-16 17:22:32,921 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 17:22:32,922 WARN L619 AbstractCegarLoop]: Verification canceled: while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). [2023-12-16 17:22:32,924 INFO L445 BasicCegarLoop]: Path program 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] [2023-12-16 17:22:32,926 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 17:22:32,928 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 05:22:32 BoogieIcfgContainer [2023-12-16 17:22:32,928 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 17:22:32,928 INFO L158 Benchmark]: Toolchain (without parser) took 72599.64ms. Allocated memory was 247.5MB in the beginning and 4.1GB in the end (delta: 3.8GB). Free memory was 179.4MB in the beginning and 3.0GB in the end (delta: -2.9GB). Peak memory consumption was 2.4GB. Max. memory is 8.0GB. [2023-12-16 17:22:32,928 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 247.5MB. Free memory is still 195.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 17:22:32,930 INFO L158 Benchmark]: CACSL2BoogieTranslator took 692.11ms. Allocated memory was 247.5MB in the beginning and 297.8MB in the end (delta: 50.3MB). Free memory was 179.1MB in the beginning and 212.3MB in the end (delta: -33.2MB). Peak memory consumption was 20.5MB. Max. memory is 8.0GB. [2023-12-16 17:22:32,932 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.26ms. Allocated memory is still 297.8MB. Free memory was 212.3MB in the beginning and 207.0MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 17:22:32,933 INFO L158 Benchmark]: Boogie Preprocessor took 148.76ms. Allocated memory is still 297.8MB. Free memory was 207.0MB in the beginning and 198.6MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2023-12-16 17:22:32,933 INFO L158 Benchmark]: RCFGBuilder took 1184.67ms. Allocated memory is still 297.8MB. Free memory was 198.6MB in the beginning and 253.0MB in the end (delta: -54.3MB). Peak memory consumption was 77.8MB. Max. memory is 8.0GB. [2023-12-16 17:22:32,937 INFO L158 Benchmark]: TraceAbstraction took 70499.65ms. Allocated memory was 297.8MB in the beginning and 4.1GB in the end (delta: 3.8GB). Free memory was 252.4MB in the beginning and 3.0GB in the end (delta: -2.8GB). Peak memory consumption was 2.4GB. Max. memory is 8.0GB. [2023-12-16 17:22:32,941 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43ms. Allocated memory is still 247.5MB. Free memory is still 195.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 692.11ms. Allocated memory was 247.5MB in the beginning and 297.8MB in the end (delta: 50.3MB). Free memory was 179.1MB in the beginning and 212.3MB in the end (delta: -33.2MB). Peak memory consumption was 20.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 70.26ms. Allocated memory is still 297.8MB. Free memory was 212.3MB in the beginning and 207.0MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 148.76ms. Allocated memory is still 297.8MB. Free memory was 207.0MB in the beginning and 198.6MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * RCFGBuilder took 1184.67ms. Allocated memory is still 297.8MB. Free memory was 198.6MB in the beginning and 253.0MB in the end (delta: -54.3MB). Peak memory consumption was 77.8MB. Max. memory is 8.0GB. * TraceAbstraction took 70499.65ms. Allocated memory was 297.8MB in the beginning and 4.1GB in the end (delta: 3.8GB). Free memory was 252.4MB in the beginning and 3.0GB in the end (delta: -2.8GB). Peak memory consumption was 2.4GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 48]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [48] - GenericResultAtLocation [Line: 57]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [57] - GenericResultAtLocation [Line: 159]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [159] - GenericResultAtLocation [Line: 525]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [525] - GenericResultAtLocation [Line: 541]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [541] - GenericResultAtLocation [Line: 579]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [579] - GenericResultAtLocation [Line: 932]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [932] - GenericResultAtLocation [Line: 1604]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [1604] - GenericResultAtLocation [Line: 1724]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1724] - GenericResultAtLocation [Line: 3302]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [3302] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 53]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 53). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 27 procedures, 567 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 70.5s, OverallIterations: 31, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 39.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 23727 SdHoareTripleChecker+Valid, 26.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22786 mSDsluCounter, 108583 SdHoareTripleChecker+Invalid, 22.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 83309 mSDsCounter, 5228 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 37178 IncrementalHoareTripleChecker+Invalid, 42406 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5228 mSolverCounterUnsat, 25274 mSDtfsCounter, 37178 mSolverCounterSat, 0.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3076 GetRequests, 2874 SyntacticMatches, 0 SemanticMatches, 202 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29716occurred in iteration=30, InterpolantAutomatonStates: 222, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 11.6s AutomataMinimizationTime, 31 MinimizatonAttempts, 2074 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.5s SsaConstructionTime, 5.8s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 3013 NumberOfCodeBlocks, 3013 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 2982 ConstructedInterpolants, 0 QuantifiedInterpolants, 6933 SizeOfPredicates, 65 NumberOfNonLiveVariables, 28941 ConjunctsInSsa, 218 ConjunctsInUnsatCore, 31 InterpolantComputations, 31 PerfectInterpolantSequences, 478/478 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown