/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_spec3_product11.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 05:33:12,650 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 05:33:12,718 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-25 05:33:12,725 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 05:33:12,726 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 05:33:12,756 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 05:33:12,756 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 05:33:12,757 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 05:33:12,757 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 05:33:12,760 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 05:33:12,760 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 05:33:12,761 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 05:33:12,761 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 05:33:12,762 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 05:33:12,762 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 05:33:12,763 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 05:33:12,763 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 05:33:12,763 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 05:33:12,763 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 05:33:12,764 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 05:33:12,764 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 05:33:12,765 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 05:33:12,765 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 05:33:12,765 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 05:33:12,765 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 05:33:12,765 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 05:33:12,765 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 05:33:12,765 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 05:33:12,766 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 05:33:12,766 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 05:33:12,766 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 05:33:12,767 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 05:33:12,767 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 05:33:12,767 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 05:33:12,767 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:33:12,767 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 05:33:12,767 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 05:33:12,767 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 05:33:12,767 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 05:33:12,768 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 05:33:12,768 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 05:33:12,768 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 05:33:12,768 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 05:33:12,768 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 05:33:12,768 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 05:33:12,769 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 05:33:12,769 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 05:33:12,969 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 05:33:12,989 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 05:33:12,990 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 05:33:12,991 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 05:33:12,991 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 05:33:12,992 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec3_product11.cil.c [2023-12-25 05:33:14,069 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 05:33:14,356 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 05:33:14,357 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product11.cil.c [2023-12-25 05:33:14,375 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b736ed98f/c68db5d1b03f4dffa50c937a042e71de/FLAGbfb1ba66d [2023-12-25 05:33:14,386 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b736ed98f/c68db5d1b03f4dffa50c937a042e71de [2023-12-25 05:33:14,387 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 05:33:14,388 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 05:33:14,389 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 05:33:14,390 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 05:33:14,397 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 05:33:14,398 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:33:14" (1/1) ... [2023-12-25 05:33:14,398 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@119a3f61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:33:14, skipping insertion in model container [2023-12-25 05:33:14,398 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:33:14" (1/1) ... [2023-12-25 05:33:14,446 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:33:14,588 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_spec3_product11.cil.c[1545,1558] [2023-12-25 05:33:14,899 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:33:14,910 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-25 05:33:14,921 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:33:14,924 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_spec3_product11.cil.c[1545,1558] [2023-12-25 05:33:15,023 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:33:15,033 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 05:33:15,040 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [48] [2023-12-25 05:33:15,041 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [57] [2023-12-25 05:33:15,041 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [423] [2023-12-25 05:33:15,041 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [523] [2023-12-25 05:33:15,041 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [643] [2023-12-25 05:33:15,041 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [832] [2023-12-25 05:33:15,041 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1185] [2023-12-25 05:33:15,042 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1200] [2023-12-25 05:33:15,042 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [2726] [2023-12-25 05:33:15,042 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [3387] [2023-12-25 05:33:15,044 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_spec3_product11.cil.c[1545,1558] [2023-12-25 05:33:15,134 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:33:15,154 INFO L206 MainTranslator]: Completed translation [2023-12-25 05:33:15,154 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:33:15 WrapperNode [2023-12-25 05:33:15,155 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 05:33:15,155 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 05:33:15,155 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 05:33:15,156 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 05:33:15,161 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:33:15" (1/1) ... [2023-12-25 05:33:15,196 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:33:15" (1/1) ... [2023-12-25 05:33:15,243 INFO L138 Inliner]: procedures = 93, calls = 344, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 1035 [2023-12-25 05:33:15,243 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 05:33:15,244 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 05:33:15,244 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 05:33:15,244 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 05:33:15,253 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:33:15" (1/1) ... [2023-12-25 05:33:15,253 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:33:15" (1/1) ... [2023-12-25 05:33:15,258 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:33:15" (1/1) ... [2023-12-25 05:33:15,289 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2023-12-25 05:33:15,290 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:33:15" (1/1) ... [2023-12-25 05:33:15,290 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:33:15" (1/1) ... [2023-12-25 05:33:15,319 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:33:15" (1/1) ... [2023-12-25 05:33:15,327 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:33:15" (1/1) ... [2023-12-25 05:33:15,344 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:33:15" (1/1) ... [2023-12-25 05:33:15,349 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:33:15" (1/1) ... [2023-12-25 05:33:15,355 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 05:33:15,360 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 05:33:15,361 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 05:33:15,361 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 05:33:15,361 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:33:15" (1/1) ... [2023-12-25 05:33:15,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:33:15,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 05:33:15,417 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-25 05:33:15,444 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-25 05:33:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 05:33:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2023-12-25 05:33:15,462 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2023-12-25 05:33:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-12-25 05:33:15,462 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-12-25 05:33:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2023-12-25 05:33:15,462 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2023-12-25 05:33:15,463 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-12-25 05:33:15,463 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-12-25 05:33:15,463 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2023-12-25 05:33:15,463 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2023-12-25 05:33:15,465 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-12-25 05:33:15,465 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-12-25 05:33:15,465 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-25 05:33:15,465 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-25 05:33:15,465 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-25 05:33:15,465 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-25 05:33:15,466 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-12-25 05:33:15,466 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-12-25 05:33:15,466 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-12-25 05:33:15,466 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-12-25 05:33:15,466 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-12-25 05:33:15,466 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-12-25 05:33:15,466 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-12-25 05:33:15,466 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-12-25 05:33:15,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 05:33:15,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-25 05:33:15,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-25 05:33:15,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-25 05:33:15,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-12-25 05:33:15,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2023-12-25 05:33:15,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2023-12-25 05:33:15,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2023-12-25 05:33:15,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2023-12-25 05:33:15,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2023-12-25 05:33:15,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2023-12-25 05:33:15,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2023-12-25 05:33:15,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12 [2023-12-25 05:33:15,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#13 [2023-12-25 05:33:15,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#14 [2023-12-25 05:33:15,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#15 [2023-12-25 05:33:15,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#16 [2023-12-25 05:33:15,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#17 [2023-12-25 05:33:15,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#18 [2023-12-25 05:33:15,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#19 [2023-12-25 05:33:15,467 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2023-12-25 05:33:15,467 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2023-12-25 05:33:15,467 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2023-12-25 05:33:15,467 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2023-12-25 05:33:15,467 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-12-25 05:33:15,467 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-12-25 05:33:15,467 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2023-12-25 05:33:15,468 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2023-12-25 05:33:15,468 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2023-12-25 05:33:15,468 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2023-12-25 05:33:15,468 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-12-25 05:33:15,468 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-12-25 05:33:15,468 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-12-25 05:33:15,469 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-12-25 05:33:15,469 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-12-25 05:33:15,469 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-12-25 05:33:15,470 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-12-25 05:33:15,470 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-12-25 05:33:15,470 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2023-12-25 05:33:15,470 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2023-12-25 05:33:15,470 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-12-25 05:33:15,470 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-12-25 05:33:15,470 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-12-25 05:33:15,470 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-12-25 05:33:15,471 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-12-25 05:33:15,471 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-12-25 05:33:15,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 05:33:15,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 05:33:15,471 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-12-25 05:33:15,471 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-12-25 05:33:15,644 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 05:33:15,646 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 05:33:16,545 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 05:33:16,652 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 05:33:16,652 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-25 05:33:16,652 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:33:16 BoogieIcfgContainer [2023-12-25 05:33:16,652 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 05:33:16,654 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 05:33:16,654 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 05:33:16,657 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 05:33:16,657 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 05:33:14" (1/3) ... [2023-12-25 05:33:16,658 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1230d8aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:33:16, skipping insertion in model container [2023-12-25 05:33:16,658 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:33:15" (2/3) ... [2023-12-25 05:33:16,658 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1230d8aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:33:16, skipping insertion in model container [2023-12-25 05:33:16,658 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:33:16" (3/3) ... [2023-12-25 05:33:16,659 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product11.cil.c [2023-12-25 05:33:16,674 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 05:33:16,674 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 05:33:16,727 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 05:33:16,732 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;@52203cd8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 05:33:16,732 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 05:33:16,738 INFO L276 IsEmpty]: Start isEmpty. Operand has 563 states, 429 states have (on average 1.7062937062937062) internal successors, (732), 447 states have internal predecessors, (732), 106 states have call successors, (106), 26 states have call predecessors, (106), 26 states have return successors, (106), 103 states have call predecessors, (106), 106 states have call successors, (106) [2023-12-25 05:33:16,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-25 05:33:16,762 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:33:16,763 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:33:16,764 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:33:16,767 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:33:16,768 INFO L85 PathProgramCache]: Analyzing trace with hash -809565727, now seen corresponding path program 1 times [2023-12-25 05:33:16,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:33:16,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1556946674] [2023-12-25 05:33:16,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:33:16,778 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:16,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:33:16,781 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:33:16,823 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-25 05:33:17,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:33:17,199 INFO L262 TraceCheckSpWp]: Trace formula consists of 827 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:33:17,207 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:33:17,299 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-25 05:33:17,299 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:33:17,300 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:33:17,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1556946674] [2023-12-25 05:33:17,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1556946674] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:33:17,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:33:17,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:33:17,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422722226] [2023-12-25 05:33:17,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:33:17,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:33:17,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:33:17,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:33:17,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:33:17,328 INFO L87 Difference]: Start difference. First operand has 563 states, 429 states have (on average 1.7062937062937062) internal successors, (732), 447 states have internal predecessors, (732), 106 states have call successors, (106), 26 states have call predecessors, (106), 26 states have return successors, (106), 103 states have call predecessors, (106), 106 states have call successors, (106) Second operand has 7 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 05:33:17,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:33:17,595 INFO L93 Difference]: Finished difference Result 1129 states and 1906 transitions. [2023-12-25 05:33:17,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:33:17,597 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 100 [2023-12-25 05:33:17,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:33:17,608 INFO L225 Difference]: With dead ends: 1129 [2023-12-25 05:33:17,608 INFO L226 Difference]: Without dead ends: 571 [2023-12-25 05:33:17,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:33:17,616 INFO L413 NwaCegarLoop]: 911 mSDtfsCounter, 115 mSDsluCounter, 4461 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 5372 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:33:17,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 5372 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:33:17,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2023-12-25 05:33:17,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 569. [2023-12-25 05:33:17,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 569 states, 435 states have (on average 1.6919540229885057) internal successors, (736), 453 states have internal predecessors, (736), 107 states have call successors, (107), 26 states have call predecessors, (107), 26 states have return successors, (106), 102 states have call predecessors, (106), 104 states have call successors, (106) [2023-12-25 05:33:17,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 949 transitions. [2023-12-25 05:33:17,676 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 949 transitions. Word has length 100 [2023-12-25 05:33:17,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:33:17,676 INFO L495 AbstractCegarLoop]: Abstraction has 569 states and 949 transitions. [2023-12-25 05:33:17,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 05:33:17,677 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 949 transitions. [2023-12-25 05:33:17,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-25 05:33:17,681 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:33:17,681 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:33:17,706 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-25 05:33:17,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:17,892 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:33:17,892 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:33:17,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1465974353, now seen corresponding path program 1 times [2023-12-25 05:33:17,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:33:17,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [468495529] [2023-12-25 05:33:17,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:33:17,894 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:17,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:33:17,895 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:33:17,925 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-25 05:33:18,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:33:18,189 INFO L262 TraceCheckSpWp]: Trace formula consists of 828 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:33:18,193 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:33:18,233 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-25 05:33:18,233 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:33:18,234 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:33:18,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [468495529] [2023-12-25 05:33:18,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [468495529] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:33:18,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:33:18,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:33:18,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548003186] [2023-12-25 05:33:18,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:33:18,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:33:18,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:33:18,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:33:18,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:33:18,236 INFO L87 Difference]: Start difference. First operand 569 states and 949 transitions. Second operand has 7 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 05:33:18,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:33:18,419 INFO L93 Difference]: Finished difference Result 1138 states and 1906 transitions. [2023-12-25 05:33:18,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:33:18,419 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 101 [2023-12-25 05:33:18,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:33:18,422 INFO L225 Difference]: With dead ends: 1138 [2023-12-25 05:33:18,423 INFO L226 Difference]: Without dead ends: 579 [2023-12-25 05:33:18,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:33:18,426 INFO L413 NwaCegarLoop]: 916 mSDtfsCounter, 102 mSDsluCounter, 4466 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 5382 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:33:18,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 5382 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:33:18,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2023-12-25 05:33:18,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 569. [2023-12-25 05:33:18,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 569 states, 435 states have (on average 1.6919540229885057) internal successors, (736), 453 states have internal predecessors, (736), 107 states have call successors, (107), 26 states have call predecessors, (107), 26 states have return successors, (106), 102 states have call predecessors, (106), 104 states have call successors, (106) [2023-12-25 05:33:18,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 949 transitions. [2023-12-25 05:33:18,463 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 949 transitions. Word has length 101 [2023-12-25 05:33:18,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:33:18,464 INFO L495 AbstractCegarLoop]: Abstraction has 569 states and 949 transitions. [2023-12-25 05:33:18,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 05:33:18,464 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 949 transitions. [2023-12-25 05:33:18,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-25 05:33:18,473 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:33:18,473 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:33:18,481 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-25 05:33:18,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:18,675 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:33:18,675 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:33:18,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1352479237, now seen corresponding path program 1 times [2023-12-25 05:33:18,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:33:18,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [172570932] [2023-12-25 05:33:18,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:33:18,676 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:18,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:33:18,678 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:33:18,684 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-25 05:33:18,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:33:18,988 INFO L262 TraceCheckSpWp]: Trace formula consists of 828 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:33:18,992 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:33:19,021 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-25 05:33:19,022 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:33:19,022 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:33:19,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [172570932] [2023-12-25 05:33:19,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [172570932] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:33:19,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:33:19,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:33:19,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198995194] [2023-12-25 05:33:19,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:33:19,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:33:19,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:33:19,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:33:19,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:33:19,024 INFO L87 Difference]: Start difference. First operand 569 states and 949 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, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:33:19,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:33:19,104 INFO L93 Difference]: Finished difference Result 1126 states and 1885 transitions. [2023-12-25 05:33:19,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:33:19,105 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, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 101 [2023-12-25 05:33:19,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:33:19,108 INFO L225 Difference]: With dead ends: 1126 [2023-12-25 05:33:19,108 INFO L226 Difference]: Without dead ends: 540 [2023-12-25 05:33:19,110 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:33:19,112 INFO L413 NwaCegarLoop]: 906 mSDtfsCounter, 22 mSDsluCounter, 1805 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 2711 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:33:19,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 2711 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:33:19,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2023-12-25 05:33:19,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 540. [2023-12-25 05:33:19,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 409 states have (on average 1.6748166259168704) internal successors, (685), 425 states have internal predecessors, (685), 106 states have call successors, (106), 26 states have call predecessors, (106), 24 states have return successors, (103), 101 states have call predecessors, (103), 103 states have call successors, (103) [2023-12-25 05:33:19,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 894 transitions. [2023-12-25 05:33:19,135 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 894 transitions. Word has length 101 [2023-12-25 05:33:19,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:33:19,136 INFO L495 AbstractCegarLoop]: Abstraction has 540 states and 894 transitions. [2023-12-25 05:33:19,136 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, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:33:19,136 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 894 transitions. [2023-12-25 05:33:19,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-25 05:33:19,141 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:33:19,141 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:33:19,151 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-25 05:33:19,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:19,349 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:33:19,350 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:33:19,350 INFO L85 PathProgramCache]: Analyzing trace with hash -96935107, now seen corresponding path program 1 times [2023-12-25 05:33:19,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:33:19,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [904940104] [2023-12-25 05:33:19,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:33:19,351 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:19,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:33:19,352 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:33:19,368 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-25 05:33:19,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:33:19,700 INFO L262 TraceCheckSpWp]: Trace formula consists of 829 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:33:19,704 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:33:19,775 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-25 05:33:19,778 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:33:19,778 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:33:19,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [904940104] [2023-12-25 05:33:19,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [904940104] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:33:19,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:33:19,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:33:19,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977627085] [2023-12-25 05:33:19,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:33:19,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:33:19,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:33:19,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:33:19,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:33:19,780 INFO L87 Difference]: Start difference. First operand 540 states and 894 transitions. Second operand has 7 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 05:33:19,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:33:19,944 INFO L93 Difference]: Finished difference Result 1078 states and 1792 transitions. [2023-12-25 05:33:19,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:33:19,945 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 102 [2023-12-25 05:33:19,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:33:19,947 INFO L225 Difference]: With dead ends: 1078 [2023-12-25 05:33:19,947 INFO L226 Difference]: Without dead ends: 534 [2023-12-25 05:33:19,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:33:19,955 INFO L413 NwaCegarLoop]: 870 mSDtfsCounter, 87 mSDsluCounter, 4283 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 5153 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:33:19,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 5153 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:33:19,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2023-12-25 05:33:19,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 534. [2023-12-25 05:33:19,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 403 states have (on average 1.6674937965260546) internal successors, (672), 419 states have internal predecessors, (672), 106 states have call successors, (106), 26 states have call predecessors, (106), 24 states have return successors, (103), 101 states have call predecessors, (103), 103 states have call successors, (103) [2023-12-25 05:33:19,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 881 transitions. [2023-12-25 05:33:19,977 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 881 transitions. Word has length 102 [2023-12-25 05:33:19,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:33:19,977 INFO L495 AbstractCegarLoop]: Abstraction has 534 states and 881 transitions. [2023-12-25 05:33:19,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 05:33:19,978 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 881 transitions. [2023-12-25 05:33:19,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-25 05:33:19,980 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:33:19,981 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:33:20,004 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-25 05:33:20,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:20,189 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:33:20,189 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:33:20,190 INFO L85 PathProgramCache]: Analyzing trace with hash -392696019, now seen corresponding path program 1 times [2023-12-25 05:33:20,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:33:20,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [79055331] [2023-12-25 05:33:20,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:33:20,190 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:20,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:33:20,197 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:33:20,200 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-25 05:33:20,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:33:20,512 INFO L262 TraceCheckSpWp]: Trace formula consists of 830 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:33:20,515 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:33:20,581 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-25 05:33:20,581 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:33:20,581 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:33:20,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [79055331] [2023-12-25 05:33:20,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [79055331] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:33:20,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:33:20,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:33:20,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737516314] [2023-12-25 05:33:20,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:33:20,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:33:20,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:33:20,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:33:20,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:33:20,583 INFO L87 Difference]: Start difference. First operand 534 states and 881 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, (16), 2 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 05:33:20,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:33:20,730 INFO L93 Difference]: Finished difference Result 1066 states and 1766 transitions. [2023-12-25 05:33:20,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:33:20,730 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, (16), 2 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 103 [2023-12-25 05:33:20,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:33:20,732 INFO L225 Difference]: With dead ends: 1066 [2023-12-25 05:33:20,733 INFO L226 Difference]: Without dead ends: 528 [2023-12-25 05:33:20,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:33:20,735 INFO L413 NwaCegarLoop]: 858 mSDtfsCounter, 73 mSDsluCounter, 4235 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 5093 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:33:20,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 5093 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:33:20,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2023-12-25 05:33:20,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2023-12-25 05:33:20,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 397 states have (on average 1.6599496221662469) internal successors, (659), 413 states have internal predecessors, (659), 106 states have call successors, (106), 26 states have call predecessors, (106), 24 states have return successors, (103), 101 states have call predecessors, (103), 103 states have call successors, (103) [2023-12-25 05:33:20,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 868 transitions. [2023-12-25 05:33:20,762 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 868 transitions. Word has length 103 [2023-12-25 05:33:20,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:33:20,762 INFO L495 AbstractCegarLoop]: Abstraction has 528 states and 868 transitions. [2023-12-25 05:33:20,762 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, (16), 2 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 05:33:20,762 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 868 transitions. [2023-12-25 05:33:20,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-25 05:33:20,764 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:33:20,764 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:33:20,775 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-25 05:33:20,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:20,973 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:33:20,974 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:33:20,974 INFO L85 PathProgramCache]: Analyzing trace with hash 284969164, now seen corresponding path program 1 times [2023-12-25 05:33:20,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:33:20,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [146718330] [2023-12-25 05:33:20,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:33:20,975 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:20,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:33:20,976 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:33:21,008 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-25 05:33:21,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:33:21,267 INFO L262 TraceCheckSpWp]: Trace formula consists of 829 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:33:21,271 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:33:21,312 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-25 05:33:21,313 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:33:21,313 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:33:21,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [146718330] [2023-12-25 05:33:21,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [146718330] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:33:21,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:33:21,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:33:21,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171249235] [2023-12-25 05:33:21,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:33:21,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:33:21,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:33:21,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:33:21,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:33:21,314 INFO L87 Difference]: Start difference. First operand 528 states and 868 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, (16), 2 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 05:33:21,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:33:21,427 INFO L93 Difference]: Finished difference Result 1054 states and 1740 transitions. [2023-12-25 05:33:21,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:33:21,428 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, (16), 2 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 103 [2023-12-25 05:33:21,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:33:21,430 INFO L225 Difference]: With dead ends: 1054 [2023-12-25 05:33:21,430 INFO L226 Difference]: Without dead ends: 528 [2023-12-25 05:33:21,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:33:21,432 INFO L413 NwaCegarLoop]: 846 mSDtfsCounter, 48 mSDsluCounter, 4199 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 5045 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:33:21,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 5045 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:33:21,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2023-12-25 05:33:21,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2023-12-25 05:33:21,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 397 states have (on average 1.6574307304785894) internal successors, (658), 413 states have internal predecessors, (658), 106 states have call successors, (106), 26 states have call predecessors, (106), 24 states have return successors, (103), 101 states have call predecessors, (103), 103 states have call successors, (103) [2023-12-25 05:33:21,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 867 transitions. [2023-12-25 05:33:21,444 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 867 transitions. Word has length 103 [2023-12-25 05:33:21,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:33:21,444 INFO L495 AbstractCegarLoop]: Abstraction has 528 states and 867 transitions. [2023-12-25 05:33:21,444 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, (16), 2 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 05:33:21,444 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 867 transitions. [2023-12-25 05:33:21,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-25 05:33:21,446 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:33:21,446 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:33:21,468 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-25 05:33:21,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:21,655 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:33:21,655 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:33:21,655 INFO L85 PathProgramCache]: Analyzing trace with hash -61557607, now seen corresponding path program 1 times [2023-12-25 05:33:21,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:33:21,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [446339193] [2023-12-25 05:33:21,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:33:21,656 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:21,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:33:21,657 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:33:21,722 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-25 05:33:21,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:33:21,980 INFO L262 TraceCheckSpWp]: Trace formula consists of 831 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:33:21,983 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:33:22,049 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-25 05:33:22,050 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:33:22,050 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:33:22,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [446339193] [2023-12-25 05:33:22,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [446339193] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:33:22,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:33:22,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:33:22,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563002615] [2023-12-25 05:33:22,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:33:22,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:33:22,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:33:22,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:33:22,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:33:22,051 INFO L87 Difference]: Start difference. First operand 528 states and 867 transitions. Second operand has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 05:33:22,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:33:22,238 INFO L93 Difference]: Finished difference Result 1048 states and 1727 transitions. [2023-12-25 05:33:22,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:33:22,238 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 104 [2023-12-25 05:33:22,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:33:22,240 INFO L225 Difference]: With dead ends: 1048 [2023-12-25 05:33:22,241 INFO L226 Difference]: Without dead ends: 528 [2023-12-25 05:33:22,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:33:22,245 INFO L413 NwaCegarLoop]: 836 mSDtfsCounter, 35 mSDsluCounter, 4993 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 5829 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:33:22,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 5829 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:33:22,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2023-12-25 05:33:22,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2023-12-25 05:33:22,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 397 states have (on average 1.654911838790932) internal successors, (657), 413 states have internal predecessors, (657), 106 states have call successors, (106), 26 states have call predecessors, (106), 24 states have return successors, (103), 101 states have call predecessors, (103), 103 states have call successors, (103) [2023-12-25 05:33:22,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 866 transitions. [2023-12-25 05:33:22,257 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 866 transitions. Word has length 104 [2023-12-25 05:33:22,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:33:22,257 INFO L495 AbstractCegarLoop]: Abstraction has 528 states and 866 transitions. [2023-12-25 05:33:22,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 05:33:22,258 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 866 transitions. [2023-12-25 05:33:22,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-25 05:33:22,260 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:33:22,260 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:33:22,288 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-25 05:33:22,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:22,470 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:33:22,471 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:33:22,471 INFO L85 PathProgramCache]: Analyzing trace with hash -890398771, now seen corresponding path program 1 times [2023-12-25 05:33:22,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:33:22,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [336969329] [2023-12-25 05:33:22,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:33:22,471 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:22,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:33:22,474 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:33:22,475 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-25 05:33:22,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:33:22,756 INFO L262 TraceCheckSpWp]: Trace formula consists of 832 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:33:22,759 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:33:22,819 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-25 05:33:22,819 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:33:22,819 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:33:22,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [336969329] [2023-12-25 05:33:22,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [336969329] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:33:22,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:33:22,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:33:22,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323475002] [2023-12-25 05:33:22,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:33:22,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:33:22,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:33:22,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:33:22,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:33:22,821 INFO L87 Difference]: Start difference. First operand 528 states and 866 transitions. Second operand has 8 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 05:33:23,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:33:23,040 INFO L93 Difference]: Finished difference Result 1048 states and 1725 transitions. [2023-12-25 05:33:23,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:33:23,041 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 105 [2023-12-25 05:33:23,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:33:23,044 INFO L225 Difference]: With dead ends: 1048 [2023-12-25 05:33:23,044 INFO L226 Difference]: Without dead ends: 528 [2023-12-25 05:33:23,046 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:33:23,047 INFO L413 NwaCegarLoop]: 836 mSDtfsCounter, 32 mSDsluCounter, 4993 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 5829 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:33:23,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 5829 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:33:23,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2023-12-25 05:33:23,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2023-12-25 05:33:23,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 397 states have (on average 1.6523929471032746) internal successors, (656), 413 states have internal predecessors, (656), 106 states have call successors, (106), 26 states have call predecessors, (106), 24 states have return successors, (103), 101 states have call predecessors, (103), 103 states have call successors, (103) [2023-12-25 05:33:23,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 865 transitions. [2023-12-25 05:33:23,059 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 865 transitions. Word has length 105 [2023-12-25 05:33:23,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:33:23,060 INFO L495 AbstractCegarLoop]: Abstraction has 528 states and 865 transitions. [2023-12-25 05:33:23,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 05:33:23,060 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 865 transitions. [2023-12-25 05:33:23,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-25 05:33:23,062 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:33:23,062 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:33:23,082 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-25 05:33:23,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:23,271 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:33:23,271 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:33:23,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1282913076, now seen corresponding path program 1 times [2023-12-25 05:33:23,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:33:23,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [434489183] [2023-12-25 05:33:23,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:33:23,272 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:23,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:33:23,273 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:33:23,275 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-25 05:33:23,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:33:23,573 INFO L262 TraceCheckSpWp]: Trace formula consists of 833 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:33:23,577 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:33:23,626 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-25 05:33:23,626 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:33:23,626 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:33:23,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [434489183] [2023-12-25 05:33:23,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [434489183] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:33:23,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:33:23,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:33:23,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47666037] [2023-12-25 05:33:23,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:33:23,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:33:23,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:33:23,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:33:23,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:33:23,628 INFO L87 Difference]: Start difference. First operand 528 states and 865 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, (16), 2 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 05:33:23,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:33:23,797 INFO L93 Difference]: Finished difference Result 1048 states and 1723 transitions. [2023-12-25 05:33:23,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:33:23,798 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, (16), 2 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 106 [2023-12-25 05:33:23,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:33:23,800 INFO L225 Difference]: With dead ends: 1048 [2023-12-25 05:33:23,800 INFO L226 Difference]: Without dead ends: 528 [2023-12-25 05:33:23,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:33:23,803 INFO L413 NwaCegarLoop]: 836 mSDtfsCounter, 29 mSDsluCounter, 4993 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 5829 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:33:23,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 5829 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:33:23,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2023-12-25 05:33:23,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2023-12-25 05:33:23,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 397 states have (on average 1.649874055415617) internal successors, (655), 413 states have internal predecessors, (655), 106 states have call successors, (106), 26 states have call predecessors, (106), 24 states have return successors, (103), 101 states have call predecessors, (103), 103 states have call successors, (103) [2023-12-25 05:33:23,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 864 transitions. [2023-12-25 05:33:23,815 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 864 transitions. Word has length 106 [2023-12-25 05:33:23,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:33:23,815 INFO L495 AbstractCegarLoop]: Abstraction has 528 states and 864 transitions. [2023-12-25 05:33:23,815 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, (16), 2 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 05:33:23,815 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 864 transitions. [2023-12-25 05:33:23,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-25 05:33:23,817 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:33:23,817 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:33:23,826 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-25 05:33:24,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:24,026 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:33:24,027 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:33:24,027 INFO L85 PathProgramCache]: Analyzing trace with hash 2033687752, now seen corresponding path program 1 times [2023-12-25 05:33:24,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:33:24,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [233935019] [2023-12-25 05:33:24,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:33:24,028 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:24,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:33:24,029 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:33:24,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-25 05:33:24,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:33:24,371 INFO L262 TraceCheckSpWp]: Trace formula consists of 834 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:33:24,374 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:33:24,428 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-25 05:33:24,428 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:33:24,428 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:33:24,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [233935019] [2023-12-25 05:33:24,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [233935019] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:33:24,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:33:24,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:33:24,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043783712] [2023-12-25 05:33:24,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:33:24,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:33:24,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:33:24,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:33:24,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:33:24,430 INFO L87 Difference]: Start difference. First operand 528 states and 864 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, (16), 2 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 05:33:24,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:33:24,594 INFO L93 Difference]: Finished difference Result 1048 states and 1721 transitions. [2023-12-25 05:33:24,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:33:24,594 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, (16), 2 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 107 [2023-12-25 05:33:24,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:33:24,597 INFO L225 Difference]: With dead ends: 1048 [2023-12-25 05:33:24,597 INFO L226 Difference]: Without dead ends: 528 [2023-12-25 05:33:24,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:33:24,599 INFO L413 NwaCegarLoop]: 836 mSDtfsCounter, 26 mSDsluCounter, 4993 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 5829 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:33:24,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 5829 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:33:24,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2023-12-25 05:33:24,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2023-12-25 05:33:24,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 397 states have (on average 1.6473551637279598) internal successors, (654), 413 states have internal predecessors, (654), 106 states have call successors, (106), 26 states have call predecessors, (106), 24 states have return successors, (103), 101 states have call predecessors, (103), 103 states have call successors, (103) [2023-12-25 05:33:24,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 863 transitions. [2023-12-25 05:33:24,612 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 863 transitions. Word has length 107 [2023-12-25 05:33:24,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:33:24,612 INFO L495 AbstractCegarLoop]: Abstraction has 528 states and 863 transitions. [2023-12-25 05:33:24,612 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, (16), 2 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 05:33:24,612 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 863 transitions. [2023-12-25 05:33:24,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-25 05:33:24,614 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:33:24,614 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:33:24,624 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-25 05:33:24,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:24,820 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:33:24,821 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:33:24,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1635483087, now seen corresponding path program 1 times [2023-12-25 05:33:24,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:33:24,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [212854834] [2023-12-25 05:33:24,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:33:24,821 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:24,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:33:24,822 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:33:24,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-25 05:33:25,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:33:25,083 INFO L262 TraceCheckSpWp]: Trace formula consists of 835 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:33:25,086 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:33:25,152 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-25 05:33:25,152 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:33:25,152 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:33:25,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [212854834] [2023-12-25 05:33:25,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [212854834] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:33:25,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:33:25,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:33:25,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551406565] [2023-12-25 05:33:25,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:33:25,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:33:25,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:33:25,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:33:25,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:33:25,153 INFO L87 Difference]: Start difference. First operand 528 states and 863 transitions. Second operand has 6 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 4 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-25 05:33:25,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:33:25,755 INFO L93 Difference]: Finished difference Result 1504 states and 2479 transitions. [2023-12-25 05:33:25,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:33:25,756 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 4 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 108 [2023-12-25 05:33:25,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:33:25,761 INFO L225 Difference]: With dead ends: 1504 [2023-12-25 05:33:25,761 INFO L226 Difference]: Without dead ends: 988 [2023-12-25 05:33:25,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:33:25,765 INFO L413 NwaCegarLoop]: 871 mSDtfsCounter, 704 mSDsluCounter, 3181 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 707 SdHoareTripleChecker+Valid, 4052 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:33:25,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [707 Valid, 4052 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 05:33:25,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 988 states. [2023-12-25 05:33:25,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 988 to 981. [2023-12-25 05:33:25,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 981 states, 741 states have (on average 1.6072874493927125) internal successors, (1191), 771 states have internal predecessors, (1191), 194 states have call successors, (194), 49 states have call predecessors, (194), 45 states have return successors, (195), 185 states have call predecessors, (195), 190 states have call successors, (195) [2023-12-25 05:33:25,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1580 transitions. [2023-12-25 05:33:25,793 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1580 transitions. Word has length 108 [2023-12-25 05:33:25,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:33:25,793 INFO L495 AbstractCegarLoop]: Abstraction has 981 states and 1580 transitions. [2023-12-25 05:33:25,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 4 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-25 05:33:25,794 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1580 transitions. [2023-12-25 05:33:25,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-25 05:33:25,795 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:33:25,795 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2023-12-25 05:33:25,822 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-25 05:33:26,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:26,005 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:33:26,005 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:33:26,005 INFO L85 PathProgramCache]: Analyzing trace with hash -2112632313, now seen corresponding path program 1 times [2023-12-25 05:33:26,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:33:26,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [458723788] [2023-12-25 05:33:26,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:33:26,006 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:26,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:33:26,007 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:33:26,039 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-25 05:33:26,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:33:26,271 INFO L262 TraceCheckSpWp]: Trace formula consists of 833 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:33:26,275 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:33:26,339 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-25 05:33:26,339 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:33:26,339 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:33:26,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [458723788] [2023-12-25 05:33:26,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [458723788] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:33:26,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:33:26,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:33:26,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982568467] [2023-12-25 05:33:26,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:33:26,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:33:26,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:33:26,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:33:26,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:33:26,340 INFO L87 Difference]: Start difference. First operand 981 states and 1580 transitions. Second operand has 6 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-25 05:33:26,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:33:26,845 INFO L93 Difference]: Finished difference Result 2438 states and 3995 transitions. [2023-12-25 05:33:26,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:33:26,846 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 109 [2023-12-25 05:33:26,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:33:26,853 INFO L225 Difference]: With dead ends: 2438 [2023-12-25 05:33:26,853 INFO L226 Difference]: Without dead ends: 1469 [2023-12-25 05:33:26,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:33:26,859 INFO L413 NwaCegarLoop]: 968 mSDtfsCounter, 793 mSDsluCounter, 3519 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 796 SdHoareTripleChecker+Valid, 4487 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 05:33:26,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [796 Valid, 4487 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 05:33:26,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1469 states. [2023-12-25 05:33:26,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1469 to 1460. [2023-12-25 05:33:26,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1460 states, 1106 states have (on average 1.6247739602169982) internal successors, (1797), 1149 states have internal predecessors, (1797), 285 states have call successors, (285), 72 states have call predecessors, (285), 68 states have return successors, (304), 276 states have call predecessors, (304), 280 states have call successors, (304) [2023-12-25 05:33:26,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1460 states to 1460 states and 2386 transitions. [2023-12-25 05:33:26,918 INFO L78 Accepts]: Start accepts. Automaton has 1460 states and 2386 transitions. Word has length 109 [2023-12-25 05:33:26,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:33:26,918 INFO L495 AbstractCegarLoop]: Abstraction has 1460 states and 2386 transitions. [2023-12-25 05:33:26,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-25 05:33:26,918 INFO L276 IsEmpty]: Start isEmpty. Operand 1460 states and 2386 transitions. [2023-12-25 05:33:26,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-25 05:33:26,919 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:33:26,919 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2023-12-25 05:33:26,927 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-25 05:33:27,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:27,128 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:33:27,128 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:33:27,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1543248130, now seen corresponding path program 1 times [2023-12-25 05:33:27,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:33:27,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1239223125] [2023-12-25 05:33:27,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:33:27,129 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 [2023-12-25 05:33:27,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:33:27,130 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:33:27,140 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-25 05:33:27,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:33:27,399 INFO L262 TraceCheckSpWp]: Trace formula consists of 841 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:33:27,403 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:33:27,493 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-25 05:33:27,493 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:33:27,493 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:33:27,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1239223125] [2023-12-25 05:33:27,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1239223125] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:33:27,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:33:27,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:33:27,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782634292] [2023-12-25 05:33:27,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:33:27,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:33:27,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:33:27,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:33:27,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:33:27,495 INFO L87 Difference]: Start difference. First operand 1460 states and 2386 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-25 05:33:28,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:33:28,064 INFO L93 Difference]: Finished difference Result 4388 states and 7332 transitions. [2023-12-25 05:33:28,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:33:28,067 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 112 [2023-12-25 05:33:28,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:33:28,080 INFO L225 Difference]: With dead ends: 4388 [2023-12-25 05:33:28,080 INFO L226 Difference]: Without dead ends: 2940 [2023-12-25 05:33:28,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:33:28,088 INFO L413 NwaCegarLoop]: 952 mSDtfsCounter, 882 mSDsluCounter, 3343 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 897 SdHoareTripleChecker+Valid, 4295 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 05:33:28,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [897 Valid, 4295 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 05:33:28,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2940 states. [2023-12-25 05:33:28,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2940 to 2866. [2023-12-25 05:33:28,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2866 states, 2178 states have (on average 1.6198347107438016) internal successors, (3528), 2262 states have internal predecessors, (3528), 550 states have call successors, (550), 141 states have call predecessors, (550), 137 states have return successors, (687), 538 states have call predecessors, (687), 542 states have call successors, (687) [2023-12-25 05:33:28,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2866 states to 2866 states and 4765 transitions. [2023-12-25 05:33:28,197 INFO L78 Accepts]: Start accepts. Automaton has 2866 states and 4765 transitions. Word has length 112 [2023-12-25 05:33:28,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:33:28,199 INFO L495 AbstractCegarLoop]: Abstraction has 2866 states and 4765 transitions. [2023-12-25 05:33:28,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-25 05:33:28,199 INFO L276 IsEmpty]: Start isEmpty. Operand 2866 states and 4765 transitions. [2023-12-25 05:33:28,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-25 05:33:28,201 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:33:28,201 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:33:28,211 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-25 05:33:28,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:28,409 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:33:28,410 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:33:28,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1014064283, now seen corresponding path program 1 times [2023-12-25 05:33:28,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:33:28,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [44277197] [2023-12-25 05:33:28,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:33:28,411 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:28,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:33:28,412 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:33:28,432 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-25 05:33:28,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:33:28,695 INFO L262 TraceCheckSpWp]: Trace formula consists of 842 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:33:28,699 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:33:28,712 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-25 05:33:28,712 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:33:28,712 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:33:28,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [44277197] [2023-12-25 05:33:28,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [44277197] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:33:28,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:33:28,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:33:28,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850228138] [2023-12-25 05:33:28,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:33:28,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:33:28,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:33:28,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:33:28,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:33:28,715 INFO L87 Difference]: Start difference. First operand 2866 states and 4765 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:33:28,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:33:28,885 INFO L93 Difference]: Finished difference Result 5738 states and 9664 transitions. [2023-12-25 05:33:28,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:33:28,885 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 113 [2023-12-25 05:33:28,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:33:28,899 INFO L225 Difference]: With dead ends: 5738 [2023-12-25 05:33:28,900 INFO L226 Difference]: Without dead ends: 2884 [2023-12-25 05:33:28,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:33:28,961 INFO L413 NwaCegarLoop]: 830 mSDtfsCounter, 19 mSDsluCounter, 1633 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 2463 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:33:28,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 2463 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:33:28,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2884 states. [2023-12-25 05:33:29,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2884 to 2878. [2023-12-25 05:33:29,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2878 states, 2187 states have (on average 1.615912208504801) internal successors, (3534), 2271 states have internal predecessors, (3534), 550 states have call successors, (550), 147 states have call predecessors, (550), 140 states have return successors, (671), 535 states have call predecessors, (671), 542 states have call successors, (671) [2023-12-25 05:33:29,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2878 states to 2878 states and 4755 transitions. [2023-12-25 05:33:29,046 INFO L78 Accepts]: Start accepts. Automaton has 2878 states and 4755 transitions. Word has length 113 [2023-12-25 05:33:29,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:33:29,047 INFO L495 AbstractCegarLoop]: Abstraction has 2878 states and 4755 transitions. [2023-12-25 05:33:29,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:33:29,047 INFO L276 IsEmpty]: Start isEmpty. Operand 2878 states and 4755 transitions. [2023-12-25 05:33:29,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-25 05:33:29,049 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:33:29,049 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2023-12-25 05:33:29,065 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-12-25 05:33:29,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:29,257 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:33:29,257 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:33:29,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1313337003, now seen corresponding path program 1 times [2023-12-25 05:33:29,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:33:29,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [750727322] [2023-12-25 05:33:29,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:33:29,258 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:29,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:33:29,259 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:33:29,262 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-25 05:33:29,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:33:29,523 INFO L262 TraceCheckSpWp]: Trace formula consists of 854 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:33:29,527 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:33:29,614 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-25 05:33:29,615 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:33:29,615 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:33:29,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [750727322] [2023-12-25 05:33:29,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [750727322] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:33:29,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:33:29,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:33:29,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752084752] [2023-12-25 05:33:29,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:33:29,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:33:29,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:33:29,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:33:29,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:33:29,617 INFO L87 Difference]: Start difference. First operand 2878 states and 4755 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-25 05:33:30,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:33:30,316 INFO L93 Difference]: Finished difference Result 8704 states and 14782 transitions. [2023-12-25 05:33:30,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:33:30,319 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 121 [2023-12-25 05:33:30,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:33:30,350 INFO L225 Difference]: With dead ends: 8704 [2023-12-25 05:33:30,350 INFO L226 Difference]: Without dead ends: 5838 [2023-12-25 05:33:30,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:33:30,366 INFO L413 NwaCegarLoop]: 929 mSDtfsCounter, 854 mSDsluCounter, 3305 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 865 SdHoareTripleChecker+Valid, 4234 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 05:33:30,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [865 Valid, 4234 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 05:33:30,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5838 states. [2023-12-25 05:33:30,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5838 to 5726. [2023-12-25 05:33:30,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5726 states, 4358 states have (on average 1.6110601193207894) internal successors, (7021), 4524 states have internal predecessors, (7021), 1083 states have call successors, (1083), 291 states have call predecessors, (1083), 284 states have return successors, (1556), 1062 states have call predecessors, (1556), 1069 states have call successors, (1556) [2023-12-25 05:33:30,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5726 states to 5726 states and 9660 transitions. [2023-12-25 05:33:30,636 INFO L78 Accepts]: Start accepts. Automaton has 5726 states and 9660 transitions. Word has length 121 [2023-12-25 05:33:30,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:33:30,636 INFO L495 AbstractCegarLoop]: Abstraction has 5726 states and 9660 transitions. [2023-12-25 05:33:30,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-25 05:33:30,637 INFO L276 IsEmpty]: Start isEmpty. Operand 5726 states and 9660 transitions. [2023-12-25 05:33:30,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-25 05:33:30,639 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:33:30,639 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2023-12-25 05:33:30,660 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-12-25 05:33:30,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:30,847 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:33:30,847 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:33:30,847 INFO L85 PathProgramCache]: Analyzing trace with hash -418599072, now seen corresponding path program 1 times [2023-12-25 05:33:30,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:33:30,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1920155926] [2023-12-25 05:33:30,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:33:30,848 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:30,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:33:30,849 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:33:30,850 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-25 05:33:31,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:33:31,134 INFO L262 TraceCheckSpWp]: Trace formula consists of 855 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:33:31,137 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:33:31,159 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-25 05:33:31,159 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:33:31,159 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:33:31,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1920155926] [2023-12-25 05:33:31,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1920155926] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:33:31,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:33:31,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:33:31,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694096775] [2023-12-25 05:33:31,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:33:31,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:33:31,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:33:31,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:33:31,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:33:31,162 INFO L87 Difference]: Start difference. First operand 5726 states and 9660 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:33:31,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:33:31,513 INFO L93 Difference]: Finished difference Result 11512 states and 19753 transitions. [2023-12-25 05:33:31,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:33:31,514 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 122 [2023-12-25 05:33:31,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:33:31,570 INFO L225 Difference]: With dead ends: 11512 [2023-12-25 05:33:31,571 INFO L226 Difference]: Without dead ends: 5798 [2023-12-25 05:33:31,596 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:33:31,596 INFO L413 NwaCegarLoop]: 828 mSDtfsCounter, 21 mSDsluCounter, 1633 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 2461 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:33:31,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 2461 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:33:31,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5798 states. [2023-12-25 05:33:31,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5798 to 5786. [2023-12-25 05:33:31,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5786 states, 4412 states have (on average 1.60494106980961) internal successors, (7081), 4566 states have internal predecessors, (7081), 1083 states have call successors, (1083), 315 states have call predecessors, (1083), 290 states have return successors, (1532), 1056 states have call predecessors, (1532), 1069 states have call successors, (1532) [2023-12-25 05:33:31,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5786 states to 5786 states and 9696 transitions. [2023-12-25 05:33:31,806 INFO L78 Accepts]: Start accepts. Automaton has 5786 states and 9696 transitions. Word has length 122 [2023-12-25 05:33:31,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:33:31,806 INFO L495 AbstractCegarLoop]: Abstraction has 5786 states and 9696 transitions. [2023-12-25 05:33:31,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:33:31,806 INFO L276 IsEmpty]: Start isEmpty. Operand 5786 states and 9696 transitions. [2023-12-25 05:33:31,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-25 05:33:31,808 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:33:31,809 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2023-12-25 05:33:31,830 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-12-25 05:33:32,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:32,034 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:33:32,034 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:33:32,035 INFO L85 PathProgramCache]: Analyzing trace with hash -432243267, now seen corresponding path program 1 times [2023-12-25 05:33:32,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:33:32,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [890446708] [2023-12-25 05:33:32,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:33:32,035 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:32,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:33:32,062 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:33:32,112 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-25 05:33:32,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:33:32,398 INFO L262 TraceCheckSpWp]: Trace formula consists of 868 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:33:32,401 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:33:32,503 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-12-25 05:33:32,503 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:33:32,503 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:33:32,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [890446708] [2023-12-25 05:33:32,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [890446708] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:33:32,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:33:32,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:33:32,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230870635] [2023-12-25 05:33:32,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:33:32,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:33:32,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:33:32,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:33:32,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:33:32,505 INFO L87 Difference]: Start difference. First operand 5786 states and 9696 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-25 05:33:33,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:33:33,390 INFO L93 Difference]: Finished difference Result 17508 states and 30502 transitions. [2023-12-25 05:33:33,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:33:33,392 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 131 [2023-12-25 05:33:33,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:33:33,441 INFO L225 Difference]: With dead ends: 17508 [2023-12-25 05:33:33,441 INFO L226 Difference]: Without dead ends: 11734 [2023-12-25 05:33:33,474 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:33:33,475 INFO L413 NwaCegarLoop]: 920 mSDtfsCounter, 832 mSDsluCounter, 3291 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 840 SdHoareTripleChecker+Valid, 4211 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 05:33:33,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [840 Valid, 4211 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 05:33:33,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11734 states. [2023-12-25 05:33:33,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11734 to 11578. [2023-12-25 05:33:33,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11578 states, 8835 states have (on average 1.6002263723825694) internal successors, (14138), 9141 states have internal predecessors, (14138), 2152 states have call successors, (2152), 627 states have call predecessors, (2152), 590 states have return successors, (3697), 2113 states have call predecessors, (3697), 2126 states have call successors, (3697) [2023-12-25 05:33:34,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11578 states to 11578 states and 19987 transitions. [2023-12-25 05:33:34,108 INFO L78 Accepts]: Start accepts. Automaton has 11578 states and 19987 transitions. Word has length 131 [2023-12-25 05:33:34,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:33:34,108 INFO L495 AbstractCegarLoop]: Abstraction has 11578 states and 19987 transitions. [2023-12-25 05:33:34,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-25 05:33:34,108 INFO L276 IsEmpty]: Start isEmpty. Operand 11578 states and 19987 transitions. [2023-12-25 05:33:34,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-25 05:33:34,110 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:33:34,110 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2023-12-25 05:33:34,134 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2023-12-25 05:33:34,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:34,338 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:33:34,338 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:33:34,338 INFO L85 PathProgramCache]: Analyzing trace with hash -1947334480, now seen corresponding path program 1 times [2023-12-25 05:33:34,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:33:34,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [862641093] [2023-12-25 05:33:34,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:33:34,340 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:34,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:33:34,341 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:33:34,347 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-12-25 05:33:34,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:33:34,623 INFO L262 TraceCheckSpWp]: Trace formula consists of 869 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:33:34,627 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:33:34,642 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-25 05:33:34,642 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:33:34,642 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:33:34,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [862641093] [2023-12-25 05:33:34,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [862641093] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:33:34,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:33:34,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:33:34,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098593083] [2023-12-25 05:33:34,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:33:34,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:33:34,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:33:34,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:33:34,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:33:34,644 INFO L87 Difference]: Start difference. First operand 11578 states and 19987 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-25 05:33:35,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:33:35,271 INFO L93 Difference]: Finished difference Result 23288 states and 41265 transitions. [2023-12-25 05:33:35,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:33:35,275 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 132 [2023-12-25 05:33:35,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:33:35,325 INFO L225 Difference]: With dead ends: 23288 [2023-12-25 05:33:35,325 INFO L226 Difference]: Without dead ends: 11722 [2023-12-25 05:33:35,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:33:35,519 INFO L413 NwaCegarLoop]: 828 mSDtfsCounter, 21 mSDsluCounter, 1633 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 2461 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:33:35,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 2461 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:33:35,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11722 states. [2023-12-25 05:33:36,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11722 to 11698. [2023-12-25 05:33:36,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11698 states, 8943 states have (on average 1.594319579559432) internal successors, (14258), 9249 states have internal predecessors, (14258), 2152 states have call successors, (2152), 651 states have call predecessors, (2152), 602 states have return successors, (3665), 2101 states have call predecessors, (3665), 2126 states have call successors, (3665) [2023-12-25 05:33:36,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11698 states to 11698 states and 20075 transitions. [2023-12-25 05:33:36,111 INFO L78 Accepts]: Start accepts. Automaton has 11698 states and 20075 transitions. Word has length 132 [2023-12-25 05:33:36,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:33:36,111 INFO L495 AbstractCegarLoop]: Abstraction has 11698 states and 20075 transitions. [2023-12-25 05:33:36,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-25 05:33:36,112 INFO L276 IsEmpty]: Start isEmpty. Operand 11698 states and 20075 transitions. [2023-12-25 05:33:36,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-25 05:33:36,113 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:33:36,113 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 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] [2023-12-25 05:33:36,123 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2023-12-25 05:33:36,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:36,322 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:33:36,322 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:33:36,322 INFO L85 PathProgramCache]: Analyzing trace with hash 525343994, now seen corresponding path program 1 times [2023-12-25 05:33:36,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:33:36,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [966917393] [2023-12-25 05:33:36,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:33:36,323 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:36,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:33:36,324 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:33:36,363 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-12-25 05:33:36,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:33:36,619 INFO L262 TraceCheckSpWp]: Trace formula consists of 883 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:33:36,624 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:33:36,738 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-25 05:33:36,738 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:33:36,738 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:33:36,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [966917393] [2023-12-25 05:33:36,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [966917393] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:33:36,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:33:36,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:33:36,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938989137] [2023-12-25 05:33:36,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:33:36,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:33:36,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:33:36,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:33:36,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:33:36,742 INFO L87 Difference]: Start difference. First operand 11698 states and 20075 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-25 05:33:38,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:33:38,369 INFO L93 Difference]: Finished difference Result 35328 states and 64356 transitions. [2023-12-25 05:33:38,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:33:38,371 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 142 [2023-12-25 05:33:38,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:33:38,474 INFO L225 Difference]: With dead ends: 35328 [2023-12-25 05:33:38,474 INFO L226 Difference]: Without dead ends: 23642 [2023-12-25 05:33:38,572 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:33:38,572 INFO L413 NwaCegarLoop]: 947 mSDtfsCounter, 810 mSDsluCounter, 3351 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 815 SdHoareTripleChecker+Valid, 4298 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:33:38,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [815 Valid, 4298 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 05:33:38,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23642 states. [2023-12-25 05:33:39,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23642 to 23462. [2023-12-25 05:33:39,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23462 states, 17942 states have (on average 1.5897335859993311) internal successors, (28523), 18552 states have internal predecessors, (28523), 4293 states have call successors, (4293), 1299 states have call predecessors, (4293), 1226 states have return successors, (9382), 4218 states have call predecessors, (9382), 4243 states have call successors, (9382) [2023-12-25 05:33:40,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23462 states to 23462 states and 42198 transitions. [2023-12-25 05:33:40,008 INFO L78 Accepts]: Start accepts. Automaton has 23462 states and 42198 transitions. Word has length 142 [2023-12-25 05:33:40,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:33:40,009 INFO L495 AbstractCegarLoop]: Abstraction has 23462 states and 42198 transitions. [2023-12-25 05:33:40,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-25 05:33:40,009 INFO L276 IsEmpty]: Start isEmpty. Operand 23462 states and 42198 transitions. [2023-12-25 05:33:40,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-25 05:33:40,011 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:33:40,011 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 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] [2023-12-25 05:33:40,019 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2023-12-25 05:33:40,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:40,220 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:33:40,220 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:33:40,220 INFO L85 PathProgramCache]: Analyzing trace with hash -630117957, now seen corresponding path program 1 times [2023-12-25 05:33:40,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:33:40,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1786309679] [2023-12-25 05:33:40,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:33:40,221 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:40,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:33:40,222 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:33:40,256 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-12-25 05:33:40,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:33:40,613 INFO L262 TraceCheckSpWp]: Trace formula consists of 883 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:33:40,616 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:33:40,736 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-25 05:33:40,736 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:33:40,736 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:33:40,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1786309679] [2023-12-25 05:33:40,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1786309679] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:33:40,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:33:40,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:33:40,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528838460] [2023-12-25 05:33:40,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:33:40,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:33:40,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:33:40,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:33:40,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:33:40,738 INFO L87 Difference]: Start difference. First operand 23462 states and 42198 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-25 05:33:43,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:33:43,234 INFO L93 Difference]: Finished difference Result 47104 states and 89458 transitions. [2023-12-25 05:33:43,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:33:43,236 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 143 [2023-12-25 05:33:43,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:33:43,362 INFO L225 Difference]: With dead ends: 47104 [2023-12-25 05:33:43,362 INFO L226 Difference]: Without dead ends: 23654 [2023-12-25 05:33:43,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:33:43,687 INFO L413 NwaCegarLoop]: 820 mSDtfsCounter, 776 mSDsluCounter, 1253 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 794 SdHoareTripleChecker+Valid, 2073 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:33:43,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [794 Valid, 2073 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 05:33:43,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23654 states. [2023-12-25 05:33:44,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23654 to 23654. [2023-12-25 05:33:44,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23654 states, 18086 states have (on average 1.5850381510560654) internal successors, (28667), 18696 states have internal predecessors, (28667), 4293 states have call successors, (4293), 1347 states have call predecessors, (4293), 1274 states have return successors, (9430), 4218 states have call predecessors, (9430), 4243 states have call successors, (9430) [2023-12-25 05:33:45,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23654 states to 23654 states and 42390 transitions. [2023-12-25 05:33:45,189 INFO L78 Accepts]: Start accepts. Automaton has 23654 states and 42390 transitions. Word has length 143 [2023-12-25 05:33:45,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:33:45,190 INFO L495 AbstractCegarLoop]: Abstraction has 23654 states and 42390 transitions. [2023-12-25 05:33:45,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-25 05:33:45,190 INFO L276 IsEmpty]: Start isEmpty. Operand 23654 states and 42390 transitions. [2023-12-25 05:33:45,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-25 05:33:45,192 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:33:45,192 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 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] [2023-12-25 05:33:45,214 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2023-12-25 05:33:45,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:45,401 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:33:45,402 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:33:45,402 INFO L85 PathProgramCache]: Analyzing trace with hash 571190011, now seen corresponding path program 1 times [2023-12-25 05:33:45,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:33:45,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [321298847] [2023-12-25 05:33:45,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:33:45,402 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:45,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:33:45,418 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:33:45,456 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-12-25 05:33:45,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:33:45,727 INFO L262 TraceCheckSpWp]: Trace formula consists of 885 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:33:45,731 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:33:45,861 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-25 05:33:45,861 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:33:45,861 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:33:45,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [321298847] [2023-12-25 05:33:45,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [321298847] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:33:45,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:33:45,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:33:45,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800882082] [2023-12-25 05:33:45,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:33:45,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:33:45,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:33:45,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:33:45,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:33:45,863 INFO L87 Difference]: Start difference. First operand 23654 states and 42390 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-25 05:33:48,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:33:48,328 INFO L93 Difference]: Finished difference Result 47536 states and 89810 transitions. [2023-12-25 05:33:48,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:33:48,330 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 145 [2023-12-25 05:33:48,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:33:48,495 INFO L225 Difference]: With dead ends: 47536 [2023-12-25 05:33:48,495 INFO L226 Difference]: Without dead ends: 23894 [2023-12-25 05:33:49,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:33:49,096 INFO L413 NwaCegarLoop]: 821 mSDtfsCounter, 762 mSDsluCounter, 1253 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 779 SdHoareTripleChecker+Valid, 2074 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:33:49,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [779 Valid, 2074 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 506 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 05:33:49,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23894 states. [2023-12-25 05:33:50,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23894 to 23894. [2023-12-25 05:33:50,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23894 states, 18278 states have (on average 1.5788926578400262) internal successors, (28859), 18888 states have internal predecessors, (28859), 4293 states have call successors, (4293), 1395 states have call predecessors, (4293), 1322 states have return successors, (9478), 4218 states have call predecessors, (9478), 4243 states have call successors, (9478) [2023-12-25 05:33:50,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23894 states to 23894 states and 42630 transitions. [2023-12-25 05:33:50,549 INFO L78 Accepts]: Start accepts. Automaton has 23894 states and 42630 transitions. Word has length 145 [2023-12-25 05:33:50,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:33:50,552 INFO L495 AbstractCegarLoop]: Abstraction has 23894 states and 42630 transitions. [2023-12-25 05:33:50,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-25 05:33:50,552 INFO L276 IsEmpty]: Start isEmpty. Operand 23894 states and 42630 transitions. [2023-12-25 05:33:50,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-25 05:33:50,553 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:33:50,553 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 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] [2023-12-25 05:33:50,576 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2023-12-25 05:33:50,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:50,763 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:33:50,763 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:33:50,764 INFO L85 PathProgramCache]: Analyzing trace with hash 993364411, now seen corresponding path program 1 times [2023-12-25 05:33:50,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:33:50,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2079361482] [2023-12-25 05:33:50,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:33:50,764 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:50,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:33:50,766 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:33:50,767 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-12-25 05:33:51,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:33:51,048 INFO L262 TraceCheckSpWp]: Trace formula consists of 887 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:33:51,052 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:33:51,196 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-25 05:33:51,196 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:33:51,197 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:33:51,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2079361482] [2023-12-25 05:33:51,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2079361482] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:33:51,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:33:51,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:33:51,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90306844] [2023-12-25 05:33:51,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:33:51,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:33:51,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:33:51,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:33:51,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:33:51,199 INFO L87 Difference]: Start difference. First operand 23894 states and 42630 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-25 05:33:53,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:33:53,527 INFO L93 Difference]: Finished difference Result 48064 states and 90282 transitions. [2023-12-25 05:33:53,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:33:53,529 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 147 [2023-12-25 05:33:53,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:33:53,711 INFO L225 Difference]: With dead ends: 48064 [2023-12-25 05:33:53,712 INFO L226 Difference]: Without dead ends: 24182 [2023-12-25 05:33:54,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:33:54,266 INFO L413 NwaCegarLoop]: 821 mSDtfsCounter, 773 mSDsluCounter, 1253 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 790 SdHoareTripleChecker+Valid, 2074 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:33:54,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [790 Valid, 2074 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 05:33:54,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24182 states. [2023-12-25 05:33:55,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24182 to 24182. [2023-12-25 05:33:55,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24182 states, 18518 states have (on average 1.5713899989199698) internal successors, (29099), 19128 states have internal predecessors, (29099), 4293 states have call successors, (4293), 1443 states have call predecessors, (4293), 1370 states have return successors, (9526), 4218 states have call predecessors, (9526), 4243 states have call successors, (9526) [2023-12-25 05:33:55,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24182 states to 24182 states and 42918 transitions. [2023-12-25 05:33:55,605 INFO L78 Accepts]: Start accepts. Automaton has 24182 states and 42918 transitions. Word has length 147 [2023-12-25 05:33:55,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:33:55,605 INFO L495 AbstractCegarLoop]: Abstraction has 24182 states and 42918 transitions. [2023-12-25 05:33:55,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-25 05:33:55,606 INFO L276 IsEmpty]: Start isEmpty. Operand 24182 states and 42918 transitions. [2023-12-25 05:33:55,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-12-25 05:33:55,607 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:33:55,607 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 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] [2023-12-25 05:33:55,628 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Ended with exit code 0 [2023-12-25 05:33:55,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:55,815 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:33:55,815 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:33:55,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1045084541, now seen corresponding path program 1 times [2023-12-25 05:33:55,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:33:55,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1059423399] [2023-12-25 05:33:55,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:33:55,816 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:55,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:33:55,819 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:33:55,820 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-12-25 05:33:56,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:33:56,088 INFO L262 TraceCheckSpWp]: Trace formula consists of 889 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:33:56,091 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:33:56,210 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-25 05:33:56,211 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:33:56,211 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:33:56,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1059423399] [2023-12-25 05:33:56,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1059423399] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:33:56,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:33:56,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:33:56,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129400934] [2023-12-25 05:33:56,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:33:56,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:33:56,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:33:56,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:33:56,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:33:56,213 INFO L87 Difference]: Start difference. First operand 24182 states and 42918 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-25 05:33:58,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:33:58,624 INFO L93 Difference]: Finished difference Result 48688 states and 90862 transitions. [2023-12-25 05:33:58,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:33:58,626 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 149 [2023-12-25 05:33:58,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:33:58,751 INFO L225 Difference]: With dead ends: 48688 [2023-12-25 05:33:58,751 INFO L226 Difference]: Without dead ends: 24518 [2023-12-25 05:33:59,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:33:59,117 INFO L413 NwaCegarLoop]: 821 mSDtfsCounter, 769 mSDsluCounter, 1253 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 786 SdHoareTripleChecker+Valid, 2074 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:33:59,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [786 Valid, 2074 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 05:33:59,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24518 states. [2023-12-25 05:34:00,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24518 to 24518. [2023-12-25 05:34:00,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24518 states, 18806 states have (on average 1.5626395831117728) internal successors, (29387), 19416 states have internal predecessors, (29387), 4293 states have call successors, (4293), 1491 states have call predecessors, (4293), 1418 states have return successors, (9574), 4218 states have call predecessors, (9574), 4243 states have call successors, (9574) [2023-12-25 05:34:00,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24518 states to 24518 states and 43254 transitions. [2023-12-25 05:34:00,622 INFO L78 Accepts]: Start accepts. Automaton has 24518 states and 43254 transitions. Word has length 149 [2023-12-25 05:34:00,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:34:00,623 INFO L495 AbstractCegarLoop]: Abstraction has 24518 states and 43254 transitions. [2023-12-25 05:34:00,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-25 05:34:00,623 INFO L276 IsEmpty]: Start isEmpty. Operand 24518 states and 43254 transitions. [2023-12-25 05:34:00,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-12-25 05:34:00,624 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:34:00,625 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:34:00,638 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2023-12-25 05:34:00,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:34:00,834 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:34:00,835 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:34:00,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1560562619, now seen corresponding path program 1 times [2023-12-25 05:34:00,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:34:00,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [95463898] [2023-12-25 05:34:00,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:34:00,835 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:34:00,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:34:00,836 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:34:00,838 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-25 05:34:01,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:34:01,132 INFO L262 TraceCheckSpWp]: Trace formula consists of 891 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:34:01,144 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:34:01,443 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-12-25 05:34:01,443 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:34:01,443 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:34:01,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [95463898] [2023-12-25 05:34:01,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [95463898] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:34:01,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:34:01,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:34:01,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158154961] [2023-12-25 05:34:01,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:34:01,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:34:01,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:34:01,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:34:01,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:34:01,445 INFO L87 Difference]: Start difference. First operand 24518 states and 43254 transitions. Second operand has 7 states, 6 states have (on average 16.666666666666668) internal successors, (100), 5 states have internal predecessors, (100), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-12-25 05:34:04,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:34:04,725 INFO L93 Difference]: Finished difference Result 49140 states and 88314 transitions. [2023-12-25 05:34:04,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 05:34:04,726 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 16.666666666666668) internal successors, (100), 5 states have internal predecessors, (100), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 151 [2023-12-25 05:34:04,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:34:04,895 INFO L225 Difference]: With dead ends: 49140 [2023-12-25 05:34:04,896 INFO L226 Difference]: Without dead ends: 24634 [2023-12-25 05:34:05,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-12-25 05:34:05,289 INFO L413 NwaCegarLoop]: 872 mSDtfsCounter, 1483 mSDsluCounter, 2344 mSDsCounter, 0 mSdLazyCounter, 1195 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1486 SdHoareTripleChecker+Valid, 3216 SdHoareTripleChecker+Invalid, 1199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-25 05:34:05,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1486 Valid, 3216 Invalid, 1199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1195 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-25 05:34:05,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24634 states. [2023-12-25 05:34:06,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24634 to 24518. [2023-12-25 05:34:06,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24518 states, 18806 states have (on average 1.5617887908114432) internal successors, (29371), 19416 states have internal predecessors, (29371), 4293 states have call successors, (4293), 1491 states have call predecessors, (4293), 1418 states have return successors, (9574), 4218 states have call predecessors, (9574), 4243 states have call successors, (9574) [2023-12-25 05:34:06,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24518 states to 24518 states and 43238 transitions. [2023-12-25 05:34:06,750 INFO L78 Accepts]: Start accepts. Automaton has 24518 states and 43238 transitions. Word has length 151 [2023-12-25 05:34:06,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:34:06,752 INFO L495 AbstractCegarLoop]: Abstraction has 24518 states and 43238 transitions. [2023-12-25 05:34:06,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 16.666666666666668) internal successors, (100), 5 states have internal predecessors, (100), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-12-25 05:34:06,752 INFO L276 IsEmpty]: Start isEmpty. Operand 24518 states and 43238 transitions. [2023-12-25 05:34:06,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-25 05:34:06,769 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:34:06,769 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:34:06,781 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Ended with exit code 0 [2023-12-25 05:34:06,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:34:06,970 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:34:06,970 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:34:06,970 INFO L85 PathProgramCache]: Analyzing trace with hash 2122801573, now seen corresponding path program 1 times [2023-12-25 05:34:06,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:34:06,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1116437017] [2023-12-25 05:34:06,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:34:06,971 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:34:06,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:34:06,972 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:34:06,974 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-12-25 05:34:07,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:34:07,250 INFO L262 TraceCheckSpWp]: Trace formula consists of 902 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-25 05:34:07,253 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:34:07,379 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-25 05:34:07,379 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:34:07,379 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:34:07,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1116437017] [2023-12-25 05:34:07,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1116437017] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:34:07,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:34:07,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:34:07,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961680987] [2023-12-25 05:34:07,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:34:07,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:34:07,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:34:07,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:34:07,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:34:07,381 INFO L87 Difference]: Start difference. First operand 24518 states and 43238 transitions. Second operand has 8 states, 7 states have (on average 14.714285714285714) internal successors, (103), 6 states have internal predecessors, (103), 3 states have call successors, (23), 3 states have call predecessors, (23), 5 states have return successors, (21), 5 states have call predecessors, (21), 3 states have call successors, (21) [2023-12-25 05:34:10,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:34:10,992 INFO L93 Difference]: Finished difference Result 74108 states and 137422 transitions. [2023-12-25 05:34:10,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 05:34:10,994 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 14.714285714285714) internal successors, (103), 6 states have internal predecessors, (103), 3 states have call successors, (23), 3 states have call predecessors, (23), 5 states have return successors, (21), 5 states have call predecessors, (21), 3 states have call successors, (21) Word has length 158 [2023-12-25 05:34:10,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:34:11,606 INFO L225 Difference]: With dead ends: 74108 [2023-12-25 05:34:11,606 INFO L226 Difference]: Without dead ends: 49602 [2023-12-25 05:34:11,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-12-25 05:34:11,863 INFO L413 NwaCegarLoop]: 1065 mSDtfsCounter, 809 mSDsluCounter, 4883 mSDsCounter, 0 mSdLazyCounter, 757 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 813 SdHoareTripleChecker+Valid, 5948 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-25 05:34:11,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [813 Valid, 5948 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 757 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-25 05:34:11,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49602 states. [2023-12-25 05:34:14,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49602 to 49310. [2023-12-25 05:34:14,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49310 states, 37798 states have (on average 1.559024286999312) internal successors, (58928), 39016 states have internal predecessors, (58928), 8581 states have call successors, (8581), 2979 states have call predecessors, (8581), 2930 states have return successors, (22493), 8530 states have call predecessors, (22493), 8483 states have call successors, (22493) [2023-12-25 05:34:15,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49310 states to 49310 states and 90002 transitions. [2023-12-25 05:34:15,251 INFO L78 Accepts]: Start accepts. Automaton has 49310 states and 90002 transitions. Word has length 158 [2023-12-25 05:34:15,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:34:15,252 INFO L495 AbstractCegarLoop]: Abstraction has 49310 states and 90002 transitions. [2023-12-25 05:34:15,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 14.714285714285714) internal successors, (103), 6 states have internal predecessors, (103), 3 states have call successors, (23), 3 states have call predecessors, (23), 5 states have return successors, (21), 5 states have call predecessors, (21), 3 states have call successors, (21) [2023-12-25 05:34:15,252 INFO L276 IsEmpty]: Start isEmpty. Operand 49310 states and 90002 transitions. [2023-12-25 05:34:15,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-25 05:34:15,254 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:34:15,254 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:34:15,263 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 (26)] Ended with exit code 0 [2023-12-25 05:34:15,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:34:15,463 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:34:15,463 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:34:15,463 INFO L85 PathProgramCache]: Analyzing trace with hash -2030064089, now seen corresponding path program 1 times [2023-12-25 05:34:15,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:34:15,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2029132583] [2023-12-25 05:34:15,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:34:15,464 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:34:15,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:34:15,465 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:34:15,466 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2023-12-25 05:34:15,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:34:15,751 INFO L262 TraceCheckSpWp]: Trace formula consists of 902 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:34:15,893 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:34:16,012 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-25 05:34:16,012 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:34:16,012 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:34:16,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2029132583] [2023-12-25 05:34:16,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2029132583] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:34:16,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:34:16,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:34:16,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329430241] [2023-12-25 05:34:16,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:34:16,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:34:16,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:34:16,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:34:16,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:34:16,014 INFO L87 Difference]: Start difference. First operand 49310 states and 90002 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-25 05:34:21,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:34:21,121 INFO L93 Difference]: Finished difference Result 98414 states and 190979 transitions. [2023-12-25 05:34:21,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:34:21,121 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 158 [2023-12-25 05:34:21,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:34:21,447 INFO L225 Difference]: With dead ends: 98414 [2023-12-25 05:34:21,447 INFO L226 Difference]: Without dead ends: 49118 [2023-12-25 05:34:22,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:34:22,828 INFO L413 NwaCegarLoop]: 820 mSDtfsCounter, 753 mSDsluCounter, 1253 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 771 SdHoareTripleChecker+Valid, 2073 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:34:22,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [771 Valid, 2073 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 05:34:22,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49118 states. [2023-12-25 05:34:25,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49118 to 49118. [2023-12-25 05:34:25,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49118 states, 37654 states have (on average 1.5598873957614066) internal successors, (58736), 38968 states have internal predecessors, (58736), 8533 states have call successors, (8533), 2979 states have call predecessors, (8533), 2930 states have return successors, (22282), 8386 states have call predecessors, (22282), 8435 states have call successors, (22282) [2023-12-25 05:34:26,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49118 states to 49118 states and 89551 transitions. [2023-12-25 05:34:26,355 INFO L78 Accepts]: Start accepts. Automaton has 49118 states and 89551 transitions. Word has length 158 [2023-12-25 05:34:26,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:34:26,356 INFO L495 AbstractCegarLoop]: Abstraction has 49118 states and 89551 transitions. [2023-12-25 05:34:26,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-25 05:34:26,363 INFO L276 IsEmpty]: Start isEmpty. Operand 49118 states and 89551 transitions. [2023-12-25 05:34:26,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-25 05:34:26,365 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:34:26,365 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:34:26,372 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2023-12-25 05:34:26,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:34:26,572 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:34:26,573 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:34:26,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1538029923, now seen corresponding path program 1 times [2023-12-25 05:34:26,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:34:26,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [197859443] [2023-12-25 05:34:26,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:34:26,577 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:34:26,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:34:26,578 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:34:26,610 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2023-12-25 05:34:26,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:34:26,846 INFO L262 TraceCheckSpWp]: Trace formula consists of 901 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:34:26,849 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:34:26,895 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-25 05:34:26,895 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:34:26,896 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:34:26,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [197859443] [2023-12-25 05:34:26,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [197859443] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:34:26,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:34:26,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:34:26,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132933013] [2023-12-25 05:34:26,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:34:26,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:34:26,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:34:26,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:34:26,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:34:26,897 INFO L87 Difference]: Start difference. First operand 49118 states and 89551 transitions. Second operand has 8 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 3 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-12-25 05:34:30,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:34:30,541 INFO L93 Difference]: Finished difference Result 96666 states and 173416 transitions. [2023-12-25 05:34:30,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:34:30,541 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 3 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 158 [2023-12-25 05:34:30,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:34:31,106 INFO L225 Difference]: With dead ends: 96666 [2023-12-25 05:34:31,106 INFO L226 Difference]: Without dead ends: 48778 [2023-12-25 05:34:31,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:34:31,429 INFO L413 NwaCegarLoop]: 836 mSDtfsCounter, 22 mSDsluCounter, 4993 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 5829 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:34:31,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 5829 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:34:31,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48778 states. [2023-12-25 05:34:33,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48778 to 47434. [2023-12-25 05:34:33,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47434 states, 36357 states have (on average 1.5692988970487114) internal successors, (57055), 37671 states have internal predecessors, (57055), 8290 states have call successors, (8290), 2787 states have call predecessors, (8290), 2786 states have return successors, (20897), 8191 states have call predecessors, (20897), 8240 states have call successors, (20897) [2023-12-25 05:34:34,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47434 states to 47434 states and 86242 transitions. [2023-12-25 05:34:34,311 INFO L78 Accepts]: Start accepts. Automaton has 47434 states and 86242 transitions. Word has length 158 [2023-12-25 05:34:34,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:34:34,312 INFO L495 AbstractCegarLoop]: Abstraction has 47434 states and 86242 transitions. [2023-12-25 05:34:34,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 3 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-12-25 05:34:34,312 INFO L276 IsEmpty]: Start isEmpty. Operand 47434 states and 86242 transitions. [2023-12-25 05:34:34,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-12-25 05:34:34,313 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:34:34,314 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 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] [2023-12-25 05:34:34,322 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Ended with exit code 0 [2023-12-25 05:34:34,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:34:34,522 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:34:34,522 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:34:34,522 INFO L85 PathProgramCache]: Analyzing trace with hash -857943383, now seen corresponding path program 1 times [2023-12-25 05:34:34,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:34:34,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1440168984] [2023-12-25 05:34:34,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:34:34,523 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:34:34,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:34:34,524 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:34:34,542 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2023-12-25 05:34:34,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:34:34,793 INFO L262 TraceCheckSpWp]: Trace formula consists of 910 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:34:34,796 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:34:34,918 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-25 05:34:34,918 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:34:34,918 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:34:34,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1440168984] [2023-12-25 05:34:34,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1440168984] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:34:34,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:34:34,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:34:34,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224079199] [2023-12-25 05:34:34,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:34:34,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:34:34,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:34:34,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:34:34,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:34:34,920 INFO L87 Difference]: Start difference. First operand 47434 states and 86242 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22)