/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/product-lines/elevator_spec2_product23.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 05:30:26,290 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 05:30:26,354 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 05:30:26,359 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 05:30:26,360 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 05:30:26,381 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 05:30:26,382 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 05:30:26,382 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 05:30:26,382 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 05:30:26,384 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 05:30:26,384 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 05:30:26,384 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 05:30:26,384 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 05:30:26,385 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 05:30:26,385 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 05:30:26,385 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 05:30:26,385 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 05:30:26,385 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 05:30:26,385 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 05:30:26,386 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 05:30:26,386 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 05:30:26,388 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 05:30:26,388 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 05:30:26,388 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 05:30:26,388 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 05:30:26,388 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 05:30:26,388 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 05:30:26,389 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 05:30:26,389 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 05:30:26,389 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 05:30:26,390 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 05:30:26,390 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 05:30:26,390 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 05:30:26,390 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 05:30:26,390 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:30:26,390 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 05:30:26,390 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 05:30:26,390 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 05:30:26,390 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 05:30:26,391 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 05:30:26,391 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 05:30:26,391 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 05:30:26,391 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 05:30:26,391 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 05:30:26,391 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 05:30:26,391 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 05:30:26,392 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 05:30:26,587 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 05:30:26,608 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 05:30:26,610 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 05:30:26,611 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 05:30:26,611 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 05:30:26,613 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec2_product23.cil.c [2023-12-25 05:30:27,602 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 05:30:27,883 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 05:30:27,883 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product23.cil.c [2023-12-25 05:30:27,908 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ad401b25/d9877f2da7df4bb8a98639475e99c58c/FLAGecfb65da5 [2023-12-25 05:30:27,925 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ad401b25/d9877f2da7df4bb8a98639475e99c58c [2023-12-25 05:30:27,928 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 05:30:27,929 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 05:30:27,931 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 05:30:27,931 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 05:30:27,934 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 05:30:27,935 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:30:27" (1/1) ... [2023-12-25 05:30:27,935 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5541a53e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:30:27, skipping insertion in model container [2023-12-25 05:30:27,936 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:30:27" (1/1) ... [2023-12-25 05:30:28,008 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:30:28,259 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product23.cil.c[35995,36008] [2023-12-25 05:30:28,320 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:30:28,335 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-25 05:30:28,346 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:30:28,378 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product23.cil.c[35995,36008] [2023-12-25 05:30:28,418 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:30:28,421 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 05:30:28,428 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [48] [2023-12-25 05:30:28,429 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [235] [2023-12-25 05:30:28,429 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [273] [2023-12-25 05:30:28,429 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [941] [2023-12-25 05:30:28,429 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1307] [2023-12-25 05:30:28,429 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1665] [2023-12-25 05:30:28,429 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [1674] [2023-12-25 05:30:28,429 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1766] [2023-12-25 05:30:28,430 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [1778] [2023-12-25 05:30:28,430 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1898] [2023-12-25 05:30:28,454 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product23.cil.c[35995,36008] [2023-12-25 05:30:28,507 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:30:28,526 INFO L206 MainTranslator]: Completed translation [2023-12-25 05:30:28,527 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:30:28 WrapperNode [2023-12-25 05:30:28,527 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 05:30:28,528 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 05:30:28,528 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 05:30:28,528 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 05:30:28,532 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:30:28" (1/1) ... [2023-12-25 05:30:28,565 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:30:28" (1/1) ... [2023-12-25 05:30:28,599 INFO L138 Inliner]: procedures = 98, calls = 347, calls flagged for inlining = 26, calls inlined = 23, statements flattened = 865 [2023-12-25 05:30:28,600 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 05:30:28,600 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 05:30:28,600 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 05:30:28,601 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 05:30:28,618 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:30:28" (1/1) ... [2023-12-25 05:30:28,619 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:30:28" (1/1) ... [2023-12-25 05:30:28,628 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:30:28" (1/1) ... [2023-12-25 05:30:28,645 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 05:30:28,645 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:30:28" (1/1) ... [2023-12-25 05:30:28,645 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:30:28" (1/1) ... [2023-12-25 05:30:28,657 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:30:28" (1/1) ... [2023-12-25 05:30:28,665 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:30:28" (1/1) ... [2023-12-25 05:30:28,669 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:30:28" (1/1) ... [2023-12-25 05:30:28,672 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:30:28" (1/1) ... [2023-12-25 05:30:28,678 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 05:30:28,678 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 05:30:28,678 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 05:30:28,678 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 05:30:28,679 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:30:28" (1/1) ... [2023-12-25 05:30:28,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:30:28,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 05:30:28,728 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 05:30:28,732 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 05:30:28,751 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2023-12-25 05:30:28,751 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2023-12-25 05:30:28,751 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-12-25 05:30:28,751 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-12-25 05:30:28,751 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-12-25 05:30:28,751 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-12-25 05:30:28,751 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-25 05:30:28,751 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-25 05:30:28,751 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-12-25 05:30:28,751 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-12-25 05:30:28,752 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-12-25 05:30:28,752 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-12-25 05:30:28,752 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2023-12-25 05:30:28,752 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2023-12-25 05:30:28,752 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2023-12-25 05:30:28,752 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2023-12-25 05:30:28,752 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-12-25 05:30:28,752 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-12-25 05:30:28,752 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-12-25 05:30:28,752 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-12-25 05:30:28,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 05:30:28,752 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2023-12-25 05:30:28,752 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2023-12-25 05:30:28,752 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-12-25 05:30:28,753 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-12-25 05:30:28,753 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2023-12-25 05:30:28,753 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2023-12-25 05:30:28,753 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-12-25 05:30:28,753 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-12-25 05:30:28,753 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-25 05:30:28,753 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-25 05:30:28,753 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2023-12-25 05:30:28,753 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2023-12-25 05:30:28,753 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-12-25 05:30:28,753 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-12-25 05:30:28,753 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-12-25 05:30:28,754 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-12-25 05:30:28,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 05:30:28,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-25 05:30:28,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-25 05:30:28,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-25 05:30:28,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-12-25 05:30:28,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2023-12-25 05:30:28,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2023-12-25 05:30:28,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2023-12-25 05:30:28,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2023-12-25 05:30:28,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2023-12-25 05:30:28,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2023-12-25 05:30:28,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2023-12-25 05:30:28,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12 [2023-12-25 05:30:28,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#13 [2023-12-25 05:30:28,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#14 [2023-12-25 05:30:28,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#15 [2023-12-25 05:30:28,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#16 [2023-12-25 05:30:28,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#17 [2023-12-25 05:30:28,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#18 [2023-12-25 05:30:28,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#19 [2023-12-25 05:30:28,755 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-12-25 05:30:28,755 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-12-25 05:30:28,755 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-12-25 05:30:28,757 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-12-25 05:30:28,757 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-12-25 05:30:28,757 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-12-25 05:30:28,757 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-12-25 05:30:28,757 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-12-25 05:30:28,757 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-12-25 05:30:28,757 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-12-25 05:30:28,757 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-12-25 05:30:28,757 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-12-25 05:30:28,758 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__weight [2023-12-25 05:30:28,758 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__weight [2023-12-25 05:30:28,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 05:30:28,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 05:30:28,758 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-12-25 05:30:28,758 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-12-25 05:30:28,901 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 05:30:28,903 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 05:30:29,843 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 05:30:29,962 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 05:30:29,963 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-25 05:30:29,963 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:30:29 BoogieIcfgContainer [2023-12-25 05:30:29,963 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 05:30:29,965 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 05:30:29,965 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 05:30:29,967 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 05:30:29,967 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 05:30:27" (1/3) ... [2023-12-25 05:30:29,968 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ddc626d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:30:29, skipping insertion in model container [2023-12-25 05:30:29,968 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:30:28" (2/3) ... [2023-12-25 05:30:29,968 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ddc626d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:30:29, skipping insertion in model container [2023-12-25 05:30:29,968 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:30:29" (3/3) ... [2023-12-25 05:30:29,969 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product23.cil.c [2023-12-25 05:30:29,982 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 05:30:29,982 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 05:30:30,038 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 05:30:30,047 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;@566c4de, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 05:30:30,047 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 05:30:30,057 INFO L276 IsEmpty]: Start isEmpty. Operand has 565 states, 435 states have (on average 1.7126436781609196) internal successors, (745), 456 states have internal predecessors, (745), 102 states have call successors, (102), 26 states have call predecessors, (102), 26 states have return successors, (102), 96 states have call predecessors, (102), 102 states have call successors, (102) [2023-12-25 05:30:30,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-25 05:30:30,086 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:30:30,086 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:30:30,087 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:30:30,090 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:30:30,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1135226016, now seen corresponding path program 1 times [2023-12-25 05:30:30,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:30:30,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [678207097] [2023-12-25 05:30:30,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:30:30,107 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:30:30,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:30:30,110 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 05:30:30,144 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 05:30:30,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:30:30,469 INFO L262 TraceCheckSpWp]: Trace formula consists of 728 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-25 05:30:30,475 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:30:30,512 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-25 05:30:30,513 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:30:30,513 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:30:30,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [678207097] [2023-12-25 05:30:30,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [678207097] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:30:30,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:30:30,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 05:30:30,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180059983] [2023-12-25 05:30:30,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:30:30,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-25 05:30:30,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:30:30,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-25 05:30:30,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 05:30:30,543 INFO L87 Difference]: Start difference. First operand has 565 states, 435 states have (on average 1.7126436781609196) internal successors, (745), 456 states have internal predecessors, (745), 102 states have call successors, (102), 26 states have call predecessors, (102), 26 states have return successors, (102), 96 states have call predecessors, (102), 102 states have call successors, (102) Second operand has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-25 05:30:30,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:30:30,660 INFO L93 Difference]: Finished difference Result 583 states and 976 transitions. [2023-12-25 05:30:30,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-25 05:30:30,666 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) Word has length 91 [2023-12-25 05:30:30,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:30:30,683 INFO L225 Difference]: With dead ends: 583 [2023-12-25 05:30:30,683 INFO L226 Difference]: Without dead ends: 561 [2023-12-25 05:30:30,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 05:30:30,691 INFO L413 NwaCegarLoop]: 925 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 925 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:30:30,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 925 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:30:30,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2023-12-25 05:30:30,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 561. [2023-12-25 05:30:30,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 433 states have (on average 1.7043879907621247) internal successors, (738), 452 states have internal predecessors, (738), 102 states have call successors, (102), 26 states have call predecessors, (102), 25 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2023-12-25 05:30:30,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 937 transitions. [2023-12-25 05:30:30,788 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 937 transitions. Word has length 91 [2023-12-25 05:30:30,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:30:30,789 INFO L495 AbstractCegarLoop]: Abstraction has 561 states and 937 transitions. [2023-12-25 05:30:30,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-25 05:30:30,789 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 937 transitions. [2023-12-25 05:30:30,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-25 05:30:30,797 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:30:30,797 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2023-12-25 05:30:30,808 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-25 05:30:31,006 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 05:30:31,007 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:30:31,007 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:30:31,007 INFO L85 PathProgramCache]: Analyzing trace with hash -40425298, now seen corresponding path program 1 times [2023-12-25 05:30:31,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:30:31,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [435535878] [2023-12-25 05:30:31,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:30:31,008 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:30:31,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:30:31,009 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 05:30:31,011 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 05:30:31,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:30:31,307 INFO L262 TraceCheckSpWp]: Trace formula consists of 729 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:30:31,311 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:30:31,356 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-25 05:30:31,356 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:30:31,356 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:30:31,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [435535878] [2023-12-25 05:30:31,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [435535878] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:30:31,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:30:31,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:30:31,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621092636] [2023-12-25 05:30:31,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:30:31,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:30:31,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:30:31,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:30:31,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:30:31,360 INFO L87 Difference]: Start difference. First operand 561 states and 937 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:30:31,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:30:31,456 INFO L93 Difference]: Finished difference Result 1110 states and 1856 transitions. [2023-12-25 05:30:31,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:30:31,457 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 92 [2023-12-25 05:30:31,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:30:31,459 INFO L225 Difference]: With dead ends: 1110 [2023-12-25 05:30:31,460 INFO L226 Difference]: Without dead ends: 561 [2023-12-25 05:30:31,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:30:31,463 INFO L413 NwaCegarLoop]: 910 mSDtfsCounter, 14 mSDsluCounter, 1815 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 2725 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:30:31,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 2725 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:30:31,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2023-12-25 05:30:31,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 561. [2023-12-25 05:30:31,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 433 states have (on average 1.702078521939954) internal successors, (737), 452 states have internal predecessors, (737), 102 states have call successors, (102), 26 states have call predecessors, (102), 25 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2023-12-25 05:30:31,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 936 transitions. [2023-12-25 05:30:31,479 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 936 transitions. Word has length 92 [2023-12-25 05:30:31,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:30:31,479 INFO L495 AbstractCegarLoop]: Abstraction has 561 states and 936 transitions. [2023-12-25 05:30:31,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:30:31,479 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 936 transitions. [2023-12-25 05:30:31,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-25 05:30:31,482 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:30:31,482 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2023-12-25 05:30:31,492 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 05:30:31,689 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 05:30:31,691 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:30:31,691 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:30:31,691 INFO L85 PathProgramCache]: Analyzing trace with hash 358389549, now seen corresponding path program 1 times [2023-12-25 05:30:31,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:30:31,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [211463569] [2023-12-25 05:30:31,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:30:31,692 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:30:31,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:30:31,693 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 05:30:31,694 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 05:30:31,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:30:31,968 INFO L262 TraceCheckSpWp]: Trace formula consists of 730 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:30:31,971 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:30:31,988 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-25 05:30:31,988 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:30:31,988 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:30:31,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [211463569] [2023-12-25 05:30:31,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [211463569] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:30:31,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:30:31,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:30:31,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768946523] [2023-12-25 05:30:31,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:30:31,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:30:31,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:30:31,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:30:31,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:30:31,990 INFO L87 Difference]: Start difference. First operand 561 states and 936 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:30:32,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:30:32,074 INFO L93 Difference]: Finished difference Result 1110 states and 1855 transitions. [2023-12-25 05:30:32,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:30:32,074 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 93 [2023-12-25 05:30:32,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:30:32,077 INFO L225 Difference]: With dead ends: 1110 [2023-12-25 05:30:32,077 INFO L226 Difference]: Without dead ends: 561 [2023-12-25 05:30:32,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:30:32,079 INFO L413 NwaCegarLoop]: 910 mSDtfsCounter, 12 mSDsluCounter, 1815 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2725 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:30:32,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2725 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:30:32,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2023-12-25 05:30:32,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 561. [2023-12-25 05:30:32,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 433 states have (on average 1.699769053117783) internal successors, (736), 452 states have internal predecessors, (736), 102 states have call successors, (102), 26 states have call predecessors, (102), 25 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2023-12-25 05:30:32,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 935 transitions. [2023-12-25 05:30:32,093 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 935 transitions. Word has length 93 [2023-12-25 05:30:32,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:30:32,093 INFO L495 AbstractCegarLoop]: Abstraction has 561 states and 935 transitions. [2023-12-25 05:30:32,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:30:32,093 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 935 transitions. [2023-12-25 05:30:32,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-25 05:30:32,095 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:30:32,095 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2023-12-25 05:30:32,104 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 05:30:32,302 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 05:30:32,302 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:30:32,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:30:32,303 INFO L85 PathProgramCache]: Analyzing trace with hash 214565642, now seen corresponding path program 1 times [2023-12-25 05:30:32,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:30:32,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1116703770] [2023-12-25 05:30:32,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:30:32,304 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:30:32,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:30:32,305 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 05:30:32,309 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 05:30:32,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:30:32,585 INFO L262 TraceCheckSpWp]: Trace formula consists of 731 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:30:32,588 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:30:32,613 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-25 05:30:32,616 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:30:32,616 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:30:32,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1116703770] [2023-12-25 05:30:32,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1116703770] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:30:32,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:30:32,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:30:32,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957938234] [2023-12-25 05:30:32,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:30:32,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:30:32,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:30:32,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:30:32,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:30:32,620 INFO L87 Difference]: Start difference. First operand 561 states and 935 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:30:32,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:30:32,708 INFO L93 Difference]: Finished difference Result 1110 states and 1854 transitions. [2023-12-25 05:30:32,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:30:32,709 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 94 [2023-12-25 05:30:32,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:30:32,712 INFO L225 Difference]: With dead ends: 1110 [2023-12-25 05:30:32,712 INFO L226 Difference]: Without dead ends: 561 [2023-12-25 05:30:32,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:30:32,714 INFO L413 NwaCegarLoop]: 910 mSDtfsCounter, 10 mSDsluCounter, 1815 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2725 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:30:32,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2725 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:30:32,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2023-12-25 05:30:32,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 561. [2023-12-25 05:30:32,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 433 states have (on average 1.697459584295612) internal successors, (735), 452 states have internal predecessors, (735), 102 states have call successors, (102), 26 states have call predecessors, (102), 25 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2023-12-25 05:30:32,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 934 transitions. [2023-12-25 05:30:32,729 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 934 transitions. Word has length 94 [2023-12-25 05:30:32,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:30:32,729 INFO L495 AbstractCegarLoop]: Abstraction has 561 states and 934 transitions. [2023-12-25 05:30:32,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:30:32,730 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 934 transitions. [2023-12-25 05:30:32,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-25 05:30:32,732 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:30:32,732 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2023-12-25 05:30:32,742 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-25 05:30:32,939 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 05:30:32,939 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:30:32,939 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:30:32,939 INFO L85 PathProgramCache]: Analyzing trace with hash 428809545, now seen corresponding path program 1 times [2023-12-25 05:30:32,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:30:32,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1457556371] [2023-12-25 05:30:32,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:30:32,940 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:30:32,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:30:32,941 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 05:30:32,942 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-25 05:30:33,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:30:33,203 INFO L262 TraceCheckSpWp]: Trace formula consists of 732 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:30:33,206 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:30:33,234 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-25 05:30:33,234 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:30:33,234 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:30:33,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1457556371] [2023-12-25 05:30:33,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1457556371] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:30:33,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:30:33,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:30:33,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720252126] [2023-12-25 05:30:33,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:30:33,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:30:33,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:30:33,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:30:33,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:30:33,237 INFO L87 Difference]: Start difference. First operand 561 states and 934 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:30:33,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:30:33,328 INFO L93 Difference]: Finished difference Result 1110 states and 1853 transitions. [2023-12-25 05:30:33,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:30:33,328 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 95 [2023-12-25 05:30:33,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:30:33,331 INFO L225 Difference]: With dead ends: 1110 [2023-12-25 05:30:33,331 INFO L226 Difference]: Without dead ends: 561 [2023-12-25 05:30:33,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:30:33,336 INFO L413 NwaCegarLoop]: 910 mSDtfsCounter, 8 mSDsluCounter, 1815 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2725 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:30:33,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2725 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:30:33,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2023-12-25 05:30:33,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 561. [2023-12-25 05:30:33,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 433 states have (on average 1.6951501154734412) internal successors, (734), 452 states have internal predecessors, (734), 102 states have call successors, (102), 26 states have call predecessors, (102), 25 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2023-12-25 05:30:33,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 933 transitions. [2023-12-25 05:30:33,354 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 933 transitions. Word has length 95 [2023-12-25 05:30:33,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:30:33,355 INFO L495 AbstractCegarLoop]: Abstraction has 561 states and 933 transitions. [2023-12-25 05:30:33,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:30:33,355 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 933 transitions. [2023-12-25 05:30:33,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-25 05:30:33,357 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:30:33,357 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:30:33,371 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 05:30:33,569 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 05:30:33,569 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:30:33,570 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:30:33,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1141746330, now seen corresponding path program 1 times [2023-12-25 05:30:33,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:30:33,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1461859589] [2023-12-25 05:30:33,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:30:33,570 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:30:33,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:30:33,571 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 05:30:33,572 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 05:30:33,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:30:33,821 INFO L262 TraceCheckSpWp]: Trace formula consists of 733 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:30:33,824 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:30:33,844 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-25 05:30:33,844 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:30:33,844 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:30:33,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1461859589] [2023-12-25 05:30:33,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1461859589] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:30:33,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:30:33,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:30:33,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275019593] [2023-12-25 05:30:33,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:30:33,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:30:33,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:30:33,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:30:33,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:30:33,845 INFO L87 Difference]: Start difference. First operand 561 states and 933 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:30:33,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:30:33,919 INFO L93 Difference]: Finished difference Result 1110 states and 1852 transitions. [2023-12-25 05:30:33,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:30:33,920 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 96 [2023-12-25 05:30:33,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:30:33,922 INFO L225 Difference]: With dead ends: 1110 [2023-12-25 05:30:33,922 INFO L226 Difference]: Without dead ends: 561 [2023-12-25 05:30:33,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:30:33,924 INFO L413 NwaCegarLoop]: 910 mSDtfsCounter, 6 mSDsluCounter, 1815 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2725 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:30:33,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2725 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:30:33,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2023-12-25 05:30:33,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 561. [2023-12-25 05:30:33,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 433 states have (on average 1.6928406466512702) internal successors, (733), 452 states have internal predecessors, (733), 102 states have call successors, (102), 26 states have call predecessors, (102), 25 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2023-12-25 05:30:33,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 932 transitions. [2023-12-25 05:30:33,936 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 932 transitions. Word has length 96 [2023-12-25 05:30:33,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:30:33,936 INFO L495 AbstractCegarLoop]: Abstraction has 561 states and 932 transitions. [2023-12-25 05:30:33,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:30:33,936 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 932 transitions. [2023-12-25 05:30:33,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-25 05:30:33,938 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:30:33,938 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2023-12-25 05:30:33,950 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 05:30:34,145 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 05:30:34,145 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:30:34,146 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:30:34,146 INFO L85 PathProgramCache]: Analyzing trace with hash 2088446821, now seen corresponding path program 1 times [2023-12-25 05:30:34,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:30:34,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [593551281] [2023-12-25 05:30:34,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:30:34,146 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:30:34,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:30:34,147 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 05:30:34,158 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-25 05:30:34,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:30:34,379 INFO L262 TraceCheckSpWp]: Trace formula consists of 734 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:30:34,382 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:30:34,420 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-25 05:30:34,420 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:30:34,421 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:30:34,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [593551281] [2023-12-25 05:30:34,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [593551281] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:30:34,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:30:34,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:30:34,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272147825] [2023-12-25 05:30:34,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:30:34,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:30:34,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:30:34,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:30:34,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:30:34,422 INFO L87 Difference]: Start difference. First operand 561 states and 932 transitions. 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, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:30:34,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:30:34,578 INFO L93 Difference]: Finished difference Result 1076 states and 1784 transitions. [2023-12-25 05:30:34,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:30:34,578 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, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 97 [2023-12-25 05:30:34,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:30:34,581 INFO L225 Difference]: With dead ends: 1076 [2023-12-25 05:30:34,581 INFO L226 Difference]: Without dead ends: 575 [2023-12-25 05:30:34,583 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 91 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 05:30:34,583 INFO L413 NwaCegarLoop]: 907 mSDtfsCounter, 115 mSDsluCounter, 4445 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 5352 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:30:34,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 5352 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:30:34,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2023-12-25 05:30:34,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 573. [2023-12-25 05:30:34,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 442 states have (on average 1.6900452488687783) internal successors, (747), 463 states have internal predecessors, (747), 103 states have call successors, (103), 26 states have call predecessors, (103), 27 states have return successors, (100), 96 states have call predecessors, (100), 98 states have call successors, (100) [2023-12-25 05:30:34,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 950 transitions. [2023-12-25 05:30:34,596 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 950 transitions. Word has length 97 [2023-12-25 05:30:34,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:30:34,597 INFO L495 AbstractCegarLoop]: Abstraction has 573 states and 950 transitions. [2023-12-25 05:30:34,597 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, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:30:34,597 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 950 transitions. [2023-12-25 05:30:34,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-25 05:30:34,599 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:30:34,599 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2023-12-25 05:30:34,610 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 (8)] Ended with exit code 0 [2023-12-25 05:30:34,805 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 05:30:34,806 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:30:34,806 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:30:34,806 INFO L85 PathProgramCache]: Analyzing trace with hash -1038324220, now seen corresponding path program 1 times [2023-12-25 05:30:34,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:30:34,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [665015298] [2023-12-25 05:30:34,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:30:34,807 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:30:34,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:30:34,808 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 05:30:34,809 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 05:30:35,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:30:35,058 INFO L262 TraceCheckSpWp]: Trace formula consists of 734 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:30:35,060 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:30:35,082 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-25 05:30:35,083 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:30:35,083 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:30:35,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [665015298] [2023-12-25 05:30:35,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [665015298] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:30:35,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:30:35,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:30:35,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661164295] [2023-12-25 05:30:35,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:30:35,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:30:35,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:30:35,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:30:35,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:30:35,084 INFO L87 Difference]: Start difference. First operand 573 states and 950 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:30:35,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:30:35,160 INFO L93 Difference]: Finished difference Result 1126 states and 1876 transitions. [2023-12-25 05:30:35,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:30:35,161 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 97 [2023-12-25 05:30:35,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:30:35,180 INFO L225 Difference]: With dead ends: 1126 [2023-12-25 05:30:35,180 INFO L226 Difference]: Without dead ends: 555 [2023-12-25 05:30:35,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:30:35,182 INFO L413 NwaCegarLoop]: 911 mSDtfsCounter, 3 mSDsluCounter, 1815 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2726 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:30:35,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2726 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:30:35,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2023-12-25 05:30:35,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2023-12-25 05:30:35,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 427 states have (on average 1.68384074941452) internal successors, (719), 446 states have internal predecessors, (719), 102 states have call successors, (102), 26 states have call predecessors, (102), 25 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2023-12-25 05:30:35,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 918 transitions. [2023-12-25 05:30:35,193 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 918 transitions. Word has length 97 [2023-12-25 05:30:35,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:30:35,193 INFO L495 AbstractCegarLoop]: Abstraction has 555 states and 918 transitions. [2023-12-25 05:30:35,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:30:35,193 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 918 transitions. [2023-12-25 05:30:35,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-25 05:30:35,196 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:30:35,196 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:30:35,203 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 05:30:35,402 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 05:30:35,403 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:30:35,403 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:30:35,403 INFO L85 PathProgramCache]: Analyzing trace with hash -581883577, now seen corresponding path program 1 times [2023-12-25 05:30:35,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:30:35,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [810768537] [2023-12-25 05:30:35,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:30:35,404 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:30:35,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:30:35,405 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 05:30:35,413 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 05:30:35,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:30:35,658 INFO L262 TraceCheckSpWp]: Trace formula consists of 735 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:30:35,661 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:30:35,677 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-25 05:30:35,677 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:30:35,677 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:30:35,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [810768537] [2023-12-25 05:30:35,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [810768537] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:30:35,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:30:35,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:30:35,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055578753] [2023-12-25 05:30:35,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:30:35,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:30:35,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:30:35,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:30:35,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:30:35,678 INFO L87 Difference]: Start difference. First operand 555 states and 918 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, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:30:35,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:30:35,813 INFO L93 Difference]: Finished difference Result 1064 states and 1762 transitions. [2023-12-25 05:30:35,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:30:35,814 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, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 98 [2023-12-25 05:30:35,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:30:35,816 INFO L225 Difference]: With dead ends: 1064 [2023-12-25 05:30:35,816 INFO L226 Difference]: Without dead ends: 555 [2023-12-25 05:30:35,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:30:35,818 INFO L413 NwaCegarLoop]: 855 mSDtfsCounter, 88 mSDsluCounter, 1686 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 2541 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:30:35,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 2541 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:30:35,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2023-12-25 05:30:35,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2023-12-25 05:30:35,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 427 states have (on average 1.674473067915691) internal successors, (715), 446 states have internal predecessors, (715), 102 states have call successors, (102), 26 states have call predecessors, (102), 25 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2023-12-25 05:30:35,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 914 transitions. [2023-12-25 05:30:35,831 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 914 transitions. Word has length 98 [2023-12-25 05:30:35,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:30:35,831 INFO L495 AbstractCegarLoop]: Abstraction has 555 states and 914 transitions. [2023-12-25 05:30:35,831 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, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:30:35,831 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 914 transitions. [2023-12-25 05:30:35,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-25 05:30:35,833 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:30:35,833 INFO L195 NwaCegarLoop]: trace histogram [3, 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 05:30:35,843 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-25 05:30:36,044 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 05:30:36,044 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:30:36,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:30:36,045 INFO L85 PathProgramCache]: Analyzing trace with hash -353769784, now seen corresponding path program 1 times [2023-12-25 05:30:36,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:30:36,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1341679034] [2023-12-25 05:30:36,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:30:36,045 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:30:36,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:30:36,046 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 05:30:36,048 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 05:30:36,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:30:36,291 INFO L262 TraceCheckSpWp]: Trace formula consists of 736 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:30:36,293 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:30:36,323 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-25 05:30:36,323 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:30:36,323 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:30:36,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1341679034] [2023-12-25 05:30:36,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1341679034] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:30:36,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:30:36,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:30:36,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573897748] [2023-12-25 05:30:36,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:30:36,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:30:36,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:30:36,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:30:36,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:30:36,325 INFO L87 Difference]: Start difference. First operand 555 states and 914 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:30:36,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:30:36,445 INFO L93 Difference]: Finished difference Result 1064 states and 1758 transitions. [2023-12-25 05:30:36,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:30:36,445 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 99 [2023-12-25 05:30:36,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:30:36,448 INFO L225 Difference]: With dead ends: 1064 [2023-12-25 05:30:36,448 INFO L226 Difference]: Without dead ends: 555 [2023-12-25 05:30:36,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:30:36,451 INFO L413 NwaCegarLoop]: 855 mSDtfsCounter, 83 mSDsluCounter, 1686 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 2541 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:30:36,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 2541 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:30:36,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2023-12-25 05:30:36,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2023-12-25 05:30:36,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 427 states have (on average 1.665105386416862) internal successors, (711), 446 states have internal predecessors, (711), 102 states have call successors, (102), 26 states have call predecessors, (102), 25 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2023-12-25 05:30:36,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 910 transitions. [2023-12-25 05:30:36,463 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 910 transitions. Word has length 99 [2023-12-25 05:30:36,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:30:36,463 INFO L495 AbstractCegarLoop]: Abstraction has 555 states and 910 transitions. [2023-12-25 05:30:36,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:30:36,464 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 910 transitions. [2023-12-25 05:30:36,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-25 05:30:36,466 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:30:36,466 INFO L195 NwaCegarLoop]: trace histogram [3, 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 05:30:36,475 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 05:30:36,672 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 05:30:36,672 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:30:36,672 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:30:36,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1271577428, now seen corresponding path program 1 times [2023-12-25 05:30:36,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:30:36,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1036669145] [2023-12-25 05:30:36,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:30:36,673 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:30:36,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:30:36,674 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 05:30:36,704 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 05:30:36,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:30:36,926 INFO L262 TraceCheckSpWp]: Trace formula consists of 737 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:30:36,928 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:30:36,949 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-25 05:30:36,949 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:30:36,949 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:30:36,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1036669145] [2023-12-25 05:30:36,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1036669145] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:30:36,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:30:36,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:30:36,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310286893] [2023-12-25 05:30:36,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:30:36,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:30:36,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:30:36,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:30:36,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:30:36,951 INFO L87 Difference]: Start difference. First operand 555 states and 910 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:30:37,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:30:37,066 INFO L93 Difference]: Finished difference Result 1064 states and 1754 transitions. [2023-12-25 05:30:37,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:30:37,067 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 100 [2023-12-25 05:30:37,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:30:37,070 INFO L225 Difference]: With dead ends: 1064 [2023-12-25 05:30:37,070 INFO L226 Difference]: Without dead ends: 555 [2023-12-25 05:30:37,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:30:37,072 INFO L413 NwaCegarLoop]: 855 mSDtfsCounter, 78 mSDsluCounter, 1686 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 2541 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:30:37,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 2541 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:30:37,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2023-12-25 05:30:37,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2023-12-25 05:30:37,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 427 states have (on average 1.6557377049180328) internal successors, (707), 446 states have internal predecessors, (707), 102 states have call successors, (102), 26 states have call predecessors, (102), 25 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2023-12-25 05:30:37,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 906 transitions. [2023-12-25 05:30:37,084 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 906 transitions. Word has length 100 [2023-12-25 05:30:37,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:30:37,084 INFO L495 AbstractCegarLoop]: Abstraction has 555 states and 906 transitions. [2023-12-25 05:30:37,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:30:37,084 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 906 transitions. [2023-12-25 05:30:37,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-25 05:30:37,086 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:30:37,086 INFO L195 NwaCegarLoop]: trace histogram [3, 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 05:30:37,095 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 05:30:37,296 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 05:30:37,296 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:30:37,296 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:30:37,296 INFO L85 PathProgramCache]: Analyzing trace with hash -919772884, now seen corresponding path program 1 times [2023-12-25 05:30:37,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:30:37,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [366275082] [2023-12-25 05:30:37,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:30:37,297 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:30:37,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:30:37,298 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 05:30:37,302 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 05:30:37,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:30:37,550 INFO L262 TraceCheckSpWp]: Trace formula consists of 736 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:30:37,553 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:30:37,592 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-25 05:30:37,592 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:30:37,593 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:30:37,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [366275082] [2023-12-25 05:30:37,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [366275082] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:30:37,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:30:37,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:30:37,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067022029] [2023-12-25 05:30:37,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:30:37,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:30:37,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:30:37,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:30:37,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:30:37,594 INFO L87 Difference]: Start difference. First operand 555 states and 906 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, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:30:37,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:30:37,715 INFO L93 Difference]: Finished difference Result 1064 states and 1750 transitions. [2023-12-25 05:30:37,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:30:37,716 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, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 100 [2023-12-25 05:30:37,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:30:37,718 INFO L225 Difference]: With dead ends: 1064 [2023-12-25 05:30:37,719 INFO L226 Difference]: Without dead ends: 534 [2023-12-25 05:30:37,722 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 05:30:37,722 INFO L413 NwaCegarLoop]: 880 mSDtfsCounter, 108 mSDsluCounter, 4318 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 5198 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:30:37,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 5198 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:30:37,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2023-12-25 05:30:37,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 534. [2023-12-25 05:30:37,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 406 states have (on average 1.6576354679802956) internal successors, (673), 425 states have internal predecessors, (673), 102 states have call successors, (102), 26 states have call predecessors, (102), 25 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2023-12-25 05:30:37,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 872 transitions. [2023-12-25 05:30:37,736 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 872 transitions. Word has length 100 [2023-12-25 05:30:37,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:30:37,736 INFO L495 AbstractCegarLoop]: Abstraction has 534 states and 872 transitions. [2023-12-25 05:30:37,736 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, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:30:37,736 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 872 transitions. [2023-12-25 05:30:37,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-25 05:30:37,738 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:30:37,738 INFO L195 NwaCegarLoop]: trace histogram [3, 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 05:30:37,745 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 05:30:37,945 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 05:30:37,945 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:30:37,946 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:30:37,946 INFO L85 PathProgramCache]: Analyzing trace with hash 941756045, now seen corresponding path program 1 times [2023-12-25 05:30:37,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:30:37,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [717668536] [2023-12-25 05:30:37,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:30:37,946 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:30:37,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:30:37,948 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 05:30:37,976 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 05:30:38,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:30:38,225 INFO L262 TraceCheckSpWp]: Trace formula consists of 738 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:30:38,228 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:30:38,245 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-25 05:30:38,246 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:30:38,246 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:30:38,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [717668536] [2023-12-25 05:30:38,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [717668536] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:30:38,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:30:38,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:30:38,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923216600] [2023-12-25 05:30:38,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:30:38,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:30:38,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:30:38,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:30:38,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:30:38,247 INFO L87 Difference]: Start difference. First operand 534 states and 872 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:30:38,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:30:38,328 INFO L93 Difference]: Finished difference Result 1043 states and 1716 transitions. [2023-12-25 05:30:38,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:30:38,332 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 101 [2023-12-25 05:30:38,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:30:38,336 INFO L225 Difference]: With dead ends: 1043 [2023-12-25 05:30:38,336 INFO L226 Difference]: Without dead ends: 534 [2023-12-25 05:30:38,338 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 05:30:38,339 INFO L413 NwaCegarLoop]: 848 mSDtfsCounter, 39 mSDsluCounter, 1679 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 2527 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:30:38,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 2527 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:30:38,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2023-12-25 05:30:38,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 534. [2023-12-25 05:30:38,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 406 states have (on average 1.6551724137931034) internal successors, (672), 425 states have internal predecessors, (672), 102 states have call successors, (102), 26 states have call predecessors, (102), 25 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2023-12-25 05:30:38,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 871 transitions. [2023-12-25 05:30:38,353 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 871 transitions. Word has length 101 [2023-12-25 05:30:38,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:30:38,353 INFO L495 AbstractCegarLoop]: Abstraction has 534 states and 871 transitions. [2023-12-25 05:30:38,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:30:38,354 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 871 transitions. [2023-12-25 05:30:38,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-25 05:30:38,355 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:30:38,356 INFO L195 NwaCegarLoop]: trace histogram [3, 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 05:30:38,365 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 05:30:38,562 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 05:30:38,563 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:30:38,563 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:30:38,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1436216337, now seen corresponding path program 1 times [2023-12-25 05:30:38,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:30:38,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [20592567] [2023-12-25 05:30:38,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:30:38,564 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:30:38,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:30:38,565 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 05:30:38,572 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 05:30:38,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:30:38,792 INFO L262 TraceCheckSpWp]: Trace formula consists of 739 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:30:38,794 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:30:38,823 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-25 05:30:38,823 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:30:38,823 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:30:38,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [20592567] [2023-12-25 05:30:38,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [20592567] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:30:38,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:30:38,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:30:38,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458462623] [2023-12-25 05:30:38,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:30:38,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:30:38,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:30:38,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:30:38,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:30:38,824 INFO L87 Difference]: Start difference. First operand 534 states and 871 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:30:38,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:30:38,898 INFO L93 Difference]: Finished difference Result 1043 states and 1715 transitions. [2023-12-25 05:30:38,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:30:38,899 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 102 [2023-12-25 05:30:38,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:30:38,901 INFO L225 Difference]: With dead ends: 1043 [2023-12-25 05:30:38,901 INFO L226 Difference]: Without dead ends: 534 [2023-12-25 05:30:38,903 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:30:38,903 INFO L413 NwaCegarLoop]: 848 mSDtfsCounter, 37 mSDsluCounter, 1679 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 2527 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:30:38,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 2527 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:30:38,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2023-12-25 05:30:38,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 534. [2023-12-25 05:30:38,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 406 states have (on average 1.6527093596059113) internal successors, (671), 425 states have internal predecessors, (671), 102 states have call successors, (102), 26 states have call predecessors, (102), 25 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2023-12-25 05:30:38,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 870 transitions. [2023-12-25 05:30:38,914 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 870 transitions. Word has length 102 [2023-12-25 05:30:38,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:30:38,914 INFO L495 AbstractCegarLoop]: Abstraction has 534 states and 870 transitions. [2023-12-25 05:30:38,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:30:38,914 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 870 transitions. [2023-12-25 05:30:38,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-25 05:30:38,916 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:30:38,916 INFO L195 NwaCegarLoop]: trace histogram [3, 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 05:30:38,926 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 05:30:39,123 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 05:30:39,124 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:30:39,124 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:30:39,124 INFO L85 PathProgramCache]: Analyzing trace with hash 425455316, now seen corresponding path program 1 times [2023-12-25 05:30:39,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:30:39,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1478115064] [2023-12-25 05:30:39,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:30:39,125 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:30:39,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:30:39,125 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 05:30:39,126 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 05:30:39,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:30:39,338 INFO L262 TraceCheckSpWp]: Trace formula consists of 739 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:30:39,342 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:30:39,363 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-25 05:30:39,363 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:30:39,363 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:30:39,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1478115064] [2023-12-25 05:30:39,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1478115064] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:30:39,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:30:39,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:30:39,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224767592] [2023-12-25 05:30:39,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:30:39,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:30:39,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:30:39,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:30:39,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:30:39,364 INFO L87 Difference]: Start difference. First operand 534 states and 870 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:30:39,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:30:39,439 INFO L93 Difference]: Finished difference Result 1043 states and 1714 transitions. [2023-12-25 05:30:39,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:30:39,440 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 103 [2023-12-25 05:30:39,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:30:39,442 INFO L225 Difference]: With dead ends: 1043 [2023-12-25 05:30:39,442 INFO L226 Difference]: Without dead ends: 534 [2023-12-25 05:30:39,445 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:30:39,446 INFO L413 NwaCegarLoop]: 848 mSDtfsCounter, 35 mSDsluCounter, 1679 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 2527 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:30:39,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 2527 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:30:39,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2023-12-25 05:30:39,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 534. [2023-12-25 05:30:39,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 406 states have (on average 1.6502463054187193) internal successors, (670), 425 states have internal predecessors, (670), 102 states have call successors, (102), 26 states have call predecessors, (102), 25 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2023-12-25 05:30:39,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 869 transitions. [2023-12-25 05:30:39,456 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 869 transitions. Word has length 103 [2023-12-25 05:30:39,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:30:39,456 INFO L495 AbstractCegarLoop]: Abstraction has 534 states and 869 transitions. [2023-12-25 05:30:39,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:30:39,456 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 869 transitions. [2023-12-25 05:30:39,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-25 05:30:39,458 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:30:39,458 INFO L195 NwaCegarLoop]: trace histogram [3, 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 05:30:39,468 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 (16)] Ended with exit code 0 [2023-12-25 05:30:39,665 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 05:30:39,665 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:30:39,666 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:30:39,666 INFO L85 PathProgramCache]: Analyzing trace with hash 185215570, now seen corresponding path program 1 times [2023-12-25 05:30:39,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:30:39,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [105494989] [2023-12-25 05:30:39,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:30:39,666 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:30:39,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:30:39,667 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 05:30:39,670 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 05:30:39,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:30:39,894 INFO L262 TraceCheckSpWp]: Trace formula consists of 740 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:30:39,896 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:30:39,947 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-25 05:30:39,948 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:30:39,948 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:30:39,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [105494989] [2023-12-25 05:30:39,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [105494989] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:30:39,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:30:39,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:30:39,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066297158] [2023-12-25 05:30:39,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:30:39,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:30:39,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:30:39,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:30:39,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:30:39,949 INFO L87 Difference]: Start difference. First operand 534 states and 869 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, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:30:40,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:30:40,111 INFO L93 Difference]: Finished difference Result 1037 states and 1702 transitions. [2023-12-25 05:30:40,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:30:40,111 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, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 103 [2023-12-25 05:30:40,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:30:40,113 INFO L225 Difference]: With dead ends: 1037 [2023-12-25 05:30:40,114 INFO L226 Difference]: Without dead ends: 534 [2023-12-25 05:30:40,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:30:40,116 INFO L413 NwaCegarLoop]: 840 mSDtfsCounter, 24 mSDsluCounter, 5023 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 5863 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:30:40,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 5863 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:30:40,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2023-12-25 05:30:40,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 534. [2023-12-25 05:30:40,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 406 states have (on average 1.6477832512315271) internal successors, (669), 425 states have internal predecessors, (669), 102 states have call successors, (102), 26 states have call predecessors, (102), 25 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2023-12-25 05:30:40,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 868 transitions. [2023-12-25 05:30:40,126 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 868 transitions. Word has length 103 [2023-12-25 05:30:40,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:30:40,127 INFO L495 AbstractCegarLoop]: Abstraction has 534 states and 868 transitions. [2023-12-25 05:30:40,127 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, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:30:40,127 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 868 transitions. [2023-12-25 05:30:40,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-25 05:30:40,129 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:30:40,129 INFO L195 NwaCegarLoop]: trace histogram [3, 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 05:30:40,135 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-12-25 05:30:40,335 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 05:30:40,335 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:30:40,335 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:30:40,335 INFO L85 PathProgramCache]: Analyzing trace with hash 564294, now seen corresponding path program 1 times [2023-12-25 05:30:40,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:30:40,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [467992530] [2023-12-25 05:30:40,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:30:40,336 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:30:40,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:30:40,337 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 05:30:40,338 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 05:30:40,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:30:40,560 INFO L262 TraceCheckSpWp]: Trace formula consists of 741 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:30:40,562 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:30:40,657 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-25 05:30:40,657 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:30:40,657 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:30:40,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [467992530] [2023-12-25 05:30:40,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [467992530] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:30:40,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:30:40,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:30:40,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873573587] [2023-12-25 05:30:40,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:30:40,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:30:40,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:30:40,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:30:40,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:30:40,659 INFO L87 Difference]: Start difference. First operand 534 states and 868 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:30:41,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:30:41,273 INFO L93 Difference]: Finished difference Result 1034 states and 1723 transitions. [2023-12-25 05:30:41,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:30:41,274 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 104 [2023-12-25 05:30:41,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:30:41,278 INFO L225 Difference]: With dead ends: 1034 [2023-12-25 05:30:41,278 INFO L226 Difference]: Without dead ends: 538 [2023-12-25 05:30:41,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 100 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 05:30:41,281 INFO L413 NwaCegarLoop]: 824 mSDtfsCounter, 810 mSDsluCounter, 1281 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 828 SdHoareTripleChecker+Valid, 2105 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:30:41,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [828 Valid, 2105 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 05:30:41,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2023-12-25 05:30:41,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2023-12-25 05:30:41,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 409 states have (on average 1.6430317848410758) internal successors, (672), 428 states have internal predecessors, (672), 102 states have call successors, (102), 27 states have call predecessors, (102), 26 states have return successors, (98), 95 states have call predecessors, (98), 97 states have call successors, (98) [2023-12-25 05:30:41,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 872 transitions. [2023-12-25 05:30:41,294 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 872 transitions. Word has length 104 [2023-12-25 05:30:41,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:30:41,294 INFO L495 AbstractCegarLoop]: Abstraction has 538 states and 872 transitions. [2023-12-25 05:30:41,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:30:41,295 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 872 transitions. [2023-12-25 05:30:41,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-25 05:30:41,296 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:30:41,297 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] [2023-12-25 05:30:41,303 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 05:30:41,503 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 05:30:41,503 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:30:41,504 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:30:41,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1156291832, now seen corresponding path program 1 times [2023-12-25 05:30:41,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:30:41,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [503190314] [2023-12-25 05:30:41,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:30:41,504 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:30:41,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:30:41,505 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 05:30:41,540 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 05:30:41,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:30:41,761 INFO L262 TraceCheckSpWp]: Trace formula consists of 743 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:30:41,763 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:30:41,832 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-25 05:30:41,833 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:30:41,833 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:30:41,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [503190314] [2023-12-25 05:30:41,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [503190314] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:30:41,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:30:41,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:30:41,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715231183] [2023-12-25 05:30:41,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:30:41,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:30:41,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:30:41,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:30:41,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:30:41,836 INFO L87 Difference]: Start difference. First operand 538 states and 872 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:30:42,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:30:42,419 INFO L93 Difference]: Finished difference Result 1043 states and 1730 transitions. [2023-12-25 05:30:42,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:30:42,420 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 106 [2023-12-25 05:30:42,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:30:42,424 INFO L225 Difference]: With dead ends: 1043 [2023-12-25 05:30:42,424 INFO L226 Difference]: Without dead ends: 543 [2023-12-25 05:30:42,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 102 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 05:30:42,426 INFO L413 NwaCegarLoop]: 825 mSDtfsCounter, 812 mSDsluCounter, 1281 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 829 SdHoareTripleChecker+Valid, 2106 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:30:42,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [829 Valid, 2106 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 05:30:42,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2023-12-25 05:30:42,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 543. [2023-12-25 05:30:42,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 413 states have (on average 1.6368038740920097) internal successors, (676), 432 states have internal predecessors, (676), 102 states have call successors, (102), 28 states have call predecessors, (102), 27 states have return successors, (99), 95 states have call predecessors, (99), 97 states have call successors, (99) [2023-12-25 05:30:42,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 877 transitions. [2023-12-25 05:30:42,443 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 877 transitions. Word has length 106 [2023-12-25 05:30:42,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:30:42,443 INFO L495 AbstractCegarLoop]: Abstraction has 543 states and 877 transitions. [2023-12-25 05:30:42,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:30:42,443 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 877 transitions. [2023-12-25 05:30:42,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-25 05:30:42,445 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:30:42,445 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-25 05:30:42,453 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2023-12-25 05:30:42,653 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 05:30:42,653 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:30:42,654 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:30:42,654 INFO L85 PathProgramCache]: Analyzing trace with hash 843658950, now seen corresponding path program 1 times [2023-12-25 05:30:42,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:30:42,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [590137982] [2023-12-25 05:30:42,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:30:42,654 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:30:42,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:30:42,655 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 05:30:42,657 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 05:30:42,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:30:42,882 INFO L262 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:30:42,884 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:30:42,961 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-25 05:30:42,961 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:30:42,962 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:30:42,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [590137982] [2023-12-25 05:30:42,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [590137982] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:30:42,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:30:42,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:30:42,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127699466] [2023-12-25 05:30:42,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:30:42,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:30:42,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:30:42,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:30:42,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:30:42,964 INFO L87 Difference]: Start difference. First operand 543 states and 877 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:30:43,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:30:43,548 INFO L93 Difference]: Finished difference Result 1054 states and 1739 transitions. [2023-12-25 05:30:43,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:30:43,549 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 108 [2023-12-25 05:30:43,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:30:43,553 INFO L225 Difference]: With dead ends: 1054 [2023-12-25 05:30:43,553 INFO L226 Difference]: Without dead ends: 549 [2023-12-25 05:30:43,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 104 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 05:30:43,556 INFO L413 NwaCegarLoop]: 825 mSDtfsCounter, 820 mSDsluCounter, 1281 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 837 SdHoareTripleChecker+Valid, 2106 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:30:43,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [837 Valid, 2106 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 05:30:43,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2023-12-25 05:30:43,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 549. [2023-12-25 05:30:43,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 418 states have (on average 1.6291866028708133) internal successors, (681), 437 states have internal predecessors, (681), 102 states have call successors, (102), 29 states have call predecessors, (102), 28 states have return successors, (100), 95 states have call predecessors, (100), 97 states have call successors, (100) [2023-12-25 05:30:43,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 883 transitions. [2023-12-25 05:30:43,573 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 883 transitions. Word has length 108 [2023-12-25 05:30:43,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:30:43,573 INFO L495 AbstractCegarLoop]: Abstraction has 549 states and 883 transitions. [2023-12-25 05:30:43,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:30:43,573 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 883 transitions. [2023-12-25 05:30:43,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-25 05:30:43,575 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:30:43,576 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] [2023-12-25 05:30:43,582 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 05:30:43,782 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 05:30:43,782 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:30:43,783 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:30:43,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1348045968, now seen corresponding path program 1 times [2023-12-25 05:30:43,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:30:43,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [336207951] [2023-12-25 05:30:43,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:30:43,783 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:30:43,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:30:43,784 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 05:30:43,785 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 05:30:44,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:30:44,025 INFO L262 TraceCheckSpWp]: Trace formula consists of 747 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:30:44,028 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:30:44,125 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-25 05:30:44,125 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:30:44,125 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:30:44,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [336207951] [2023-12-25 05:30:44,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [336207951] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:30:44,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:30:44,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:30:44,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112092323] [2023-12-25 05:30:44,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:30:44,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:30:44,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:30:44,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:30:44,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:30:44,126 INFO L87 Difference]: Start difference. First operand 549 states and 883 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:30:44,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:30:44,663 INFO L93 Difference]: Finished difference Result 1067 states and 1750 transitions. [2023-12-25 05:30:44,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:30:44,668 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 110 [2023-12-25 05:30:44,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:30:44,671 INFO L225 Difference]: With dead ends: 1067 [2023-12-25 05:30:44,671 INFO L226 Difference]: Without dead ends: 556 [2023-12-25 05:30:44,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 106 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 05:30:44,674 INFO L413 NwaCegarLoop]: 825 mSDtfsCounter, 819 mSDsluCounter, 1281 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 836 SdHoareTripleChecker+Valid, 2106 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:30:44,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [836 Valid, 2106 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 05:30:44,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2023-12-25 05:30:44,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2023-12-25 05:30:44,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 424 states have (on average 1.6202830188679245) internal successors, (687), 443 states have internal predecessors, (687), 102 states have call successors, (102), 30 states have call predecessors, (102), 29 states have return successors, (101), 95 states have call predecessors, (101), 97 states have call successors, (101) [2023-12-25 05:30:44,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 890 transitions. [2023-12-25 05:30:44,687 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 890 transitions. Word has length 110 [2023-12-25 05:30:44,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:30:44,687 INFO L495 AbstractCegarLoop]: Abstraction has 556 states and 890 transitions. [2023-12-25 05:30:44,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:30:44,688 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 890 transitions. [2023-12-25 05:30:44,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-25 05:30:44,689 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:30:44,689 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-25 05:30:44,698 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 05:30:44,896 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 05:30:44,896 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:30:44,896 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:30:44,897 INFO L85 PathProgramCache]: Analyzing trace with hash -800193722, now seen corresponding path program 1 times [2023-12-25 05:30:44,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:30:44,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1456567088] [2023-12-25 05:30:44,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:30:44,897 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:30:44,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:30:44,898 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 05:30:44,898 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 05:30:45,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:30:45,136 INFO L262 TraceCheckSpWp]: Trace formula consists of 749 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-25 05:30:45,138 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:30:45,376 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-25 05:30:45,376 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:30:45,849 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-25 05:30:45,849 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:30:45,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1456567088] [2023-12-25 05:30:45,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1456567088] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:30:45,849 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:30:45,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 18 [2023-12-25 05:30:45,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967772007] [2023-12-25 05:30:45,850 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:30:45,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-25 05:30:45,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:30:45,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-25 05:30:45,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2023-12-25 05:30:45,851 INFO L87 Difference]: Start difference. First operand 556 states and 890 transitions. Second operand has 18 states, 16 states have (on average 8.5625) internal successors, (137), 14 states have internal predecessors, (137), 8 states have call successors, (27), 5 states have call predecessors, (27), 10 states have return successors, (28), 12 states have call predecessors, (28), 7 states have call successors, (28) [2023-12-25 05:30:52,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:30:52,000 INFO L93 Difference]: Finished difference Result 1724 states and 2816 transitions. [2023-12-25 05:30:52,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-25 05:30:52,000 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 8.5625) internal successors, (137), 14 states have internal predecessors, (137), 8 states have call successors, (27), 5 states have call predecessors, (27), 10 states have return successors, (28), 12 states have call predecessors, (28), 7 states have call successors, (28) Word has length 112 [2023-12-25 05:30:52,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:30:52,006 INFO L225 Difference]: With dead ends: 1724 [2023-12-25 05:30:52,006 INFO L226 Difference]: Without dead ends: 1206 [2023-12-25 05:30:52,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=176, Invalid=694, Unknown=0, NotChecked=0, Total=870 [2023-12-25 05:30:52,009 INFO L413 NwaCegarLoop]: 831 mSDtfsCounter, 4779 mSDsluCounter, 4071 mSDsCounter, 0 mSdLazyCounter, 9376 mSolverCounterSat, 1514 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4864 SdHoareTripleChecker+Valid, 4902 SdHoareTripleChecker+Invalid, 10890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1514 IncrementalHoareTripleChecker+Valid, 9376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2023-12-25 05:30:52,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4864 Valid, 4902 Invalid, 10890 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1514 Valid, 9376 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2023-12-25 05:30:52,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1206 states. [2023-12-25 05:30:52,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1206 to 1185. [2023-12-25 05:30:52,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1185 states, 886 states have (on average 1.6252821670428894) internal successors, (1440), 926 states have internal predecessors, (1440), 236 states have call successors, (236), 56 states have call predecessors, (236), 62 states have return successors, (258), 233 states have call predecessors, (258), 231 states have call successors, (258) [2023-12-25 05:30:52,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1185 states to 1185 states and 1934 transitions. [2023-12-25 05:30:52,056 INFO L78 Accepts]: Start accepts. Automaton has 1185 states and 1934 transitions. Word has length 112 [2023-12-25 05:30:52,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:30:52,056 INFO L495 AbstractCegarLoop]: Abstraction has 1185 states and 1934 transitions. [2023-12-25 05:30:52,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 8.5625) internal successors, (137), 14 states have internal predecessors, (137), 8 states have call successors, (27), 5 states have call predecessors, (27), 10 states have return successors, (28), 12 states have call predecessors, (28), 7 states have call successors, (28) [2023-12-25 05:30:52,056 INFO L276 IsEmpty]: Start isEmpty. Operand 1185 states and 1934 transitions. [2023-12-25 05:30:52,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-25 05:30:52,059 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:30:52,059 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-25 05:30:52,066 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Ended with exit code 0 [2023-12-25 05:30:52,266 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 05:30:52,266 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:30:52,267 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:30:52,267 INFO L85 PathProgramCache]: Analyzing trace with hash 230358364, now seen corresponding path program 1 times [2023-12-25 05:30:52,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:30:52,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [410903944] [2023-12-25 05:30:52,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:30:52,267 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:30:52,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:30:52,269 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 05:30:52,269 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 05:30:52,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:30:52,495 INFO L262 TraceCheckSpWp]: Trace formula consists of 752 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:30:52,497 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:30:52,554 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-25 05:30:52,554 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:30:52,554 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:30:52,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [410903944] [2023-12-25 05:30:52,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [410903944] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:30:52,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:30:52,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:30:52,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333786537] [2023-12-25 05:30:52,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:30:52,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:30:52,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:30:52,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:30:52,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:30:52,555 INFO L87 Difference]: Start difference. First operand 1185 states and 1934 transitions. Second operand has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:30:52,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:30:52,706 INFO L93 Difference]: Finished difference Result 1705 states and 2780 transitions. [2023-12-25 05:30:52,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:30:52,706 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 115 [2023-12-25 05:30:52,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:30:52,709 INFO L225 Difference]: With dead ends: 1705 [2023-12-25 05:30:52,709 INFO L226 Difference]: Without dead ends: 548 [2023-12-25 05:30:52,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:30:52,713 INFO L413 NwaCegarLoop]: 831 mSDtfsCounter, 23 mSDsluCounter, 4969 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 5800 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:30:52,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 5800 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:30:52,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2023-12-25 05:30:52,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 548. [2023-12-25 05:30:52,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 418 states have (on average 1.6148325358851674) internal successors, (675), 437 states have internal predecessors, (675), 100 states have call successors, (100), 30 states have call predecessors, (100), 29 states have return successors, (99), 93 states have call predecessors, (99), 95 states have call successors, (99) [2023-12-25 05:30:52,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 874 transitions. [2023-12-25 05:30:52,729 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 874 transitions. Word has length 115 [2023-12-25 05:30:52,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:30:52,729 INFO L495 AbstractCegarLoop]: Abstraction has 548 states and 874 transitions. [2023-12-25 05:30:52,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:30:52,729 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 874 transitions. [2023-12-25 05:30:52,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-25 05:30:52,731 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:30:52,731 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-25 05:30:52,740 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2023-12-25 05:30:52,937 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 05:30:52,938 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:30:52,938 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:30:52,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1540667706, now seen corresponding path program 1 times [2023-12-25 05:30:52,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:30:52,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [356418001] [2023-12-25 05:30:52,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:30:52,938 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:30:52,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:30:52,940 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 05:30:52,964 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 05:30:53,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:30:53,205 INFO L262 TraceCheckSpWp]: Trace formula consists of 764 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-25 05:30:53,212 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:30:53,373 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-25 05:30:53,373 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:30:53,744 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-25 05:30:53,744 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:30:53,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [356418001] [2023-12-25 05:30:53,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [356418001] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:30:53,744 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:30:53,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2023-12-25 05:30:53,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089825853] [2023-12-25 05:30:53,744 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:30:53,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-25 05:30:53,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:30:53,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-25 05:30:53,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2023-12-25 05:30:53,745 INFO L87 Difference]: Start difference. First operand 548 states and 874 transitions. Second operand has 14 states, 14 states have (on average 10.071428571428571) internal successors, (141), 12 states have internal predecessors, (141), 8 states have call successors, (28), 5 states have call predecessors, (28), 8 states have return successors, (28), 10 states have call predecessors, (28), 7 states have call successors, (28) [2023-12-25 05:30:55,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:30:55,810 INFO L93 Difference]: Finished difference Result 1066 states and 1725 transitions. [2023-12-25 05:30:55,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:30:55,811 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 10.071428571428571) internal successors, (141), 12 states have internal predecessors, (141), 8 states have call successors, (28), 5 states have call predecessors, (28), 8 states have return successors, (28), 10 states have call predecessors, (28), 7 states have call successors, (28) Word has length 121 [2023-12-25 05:30:55,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:30:55,814 INFO L225 Difference]: With dead ends: 1066 [2023-12-25 05:30:55,814 INFO L226 Difference]: Without dead ends: 553 [2023-12-25 05:30:55,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2023-12-25 05:30:55,816 INFO L413 NwaCegarLoop]: 341 mSDtfsCounter, 1936 mSDsluCounter, 1331 mSDsCounter, 0 mSdLazyCounter, 3477 mSolverCounterSat, 573 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1936 SdHoareTripleChecker+Valid, 1672 SdHoareTripleChecker+Invalid, 4050 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 573 IncrementalHoareTripleChecker+Valid, 3477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:30:55,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1936 Valid, 1672 Invalid, 4050 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [573 Valid, 3477 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-25 05:30:55,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2023-12-25 05:30:55,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 552. [2023-12-25 05:30:55,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 421 states have (on average 1.6104513064133017) internal successors, (678), 440 states have internal predecessors, (678), 100 states have call successors, (100), 30 states have call predecessors, (100), 30 states have return successors, (104), 94 states have call predecessors, (104), 95 states have call successors, (104) [2023-12-25 05:30:55,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 882 transitions. [2023-12-25 05:30:55,836 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 882 transitions. Word has length 121 [2023-12-25 05:30:55,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:30:55,836 INFO L495 AbstractCegarLoop]: Abstraction has 552 states and 882 transitions. [2023-12-25 05:30:55,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 10.071428571428571) internal successors, (141), 12 states have internal predecessors, (141), 8 states have call successors, (28), 5 states have call predecessors, (28), 8 states have return successors, (28), 10 states have call predecessors, (28), 7 states have call successors, (28) [2023-12-25 05:30:55,836 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 882 transitions. [2023-12-25 05:30:55,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-12-25 05:30:55,838 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:30:55,838 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-25 05:30:55,857 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 05:30:56,048 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 05:30:56,048 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:30:56,049 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:30:56,049 INFO L85 PathProgramCache]: Analyzing trace with hash -302265619, now seen corresponding path program 1 times [2023-12-25 05:30:56,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:30:56,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1459311329] [2023-12-25 05:30:56,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:30:56,050 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:30:56,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:30:56,051 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 05:30:56,052 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 05:30:56,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:30:56,308 INFO L262 TraceCheckSpWp]: Trace formula consists of 768 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:30:56,312 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:30:56,708 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-25 05:30:56,708 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:30:56,708 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:30:56,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1459311329] [2023-12-25 05:30:56,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1459311329] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:30:56,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:30:56,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:30:56,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212680089] [2023-12-25 05:30:56,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:30:56,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:30:56,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:30:56,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:30:56,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:30:56,710 INFO L87 Difference]: Start difference. First operand 552 states and 882 transitions. Second operand has 8 states, 8 states have (on average 11.0) internal successors, (88), 7 states have internal predecessors, (88), 6 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (16), 6 states have call predecessors, (16), 5 states have call successors, (16) [2023-12-25 05:31:00,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:00,308 INFO L93 Difference]: Finished difference Result 2193 states and 3594 transitions. [2023-12-25 05:31:00,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-25 05:31:00,309 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 7 states have internal predecessors, (88), 6 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (16), 6 states have call predecessors, (16), 5 states have call successors, (16) Word has length 123 [2023-12-25 05:31:00,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:00,318 INFO L225 Difference]: With dead ends: 2193 [2023-12-25 05:31:00,318 INFO L226 Difference]: Without dead ends: 1676 [2023-12-25 05:31:00,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-12-25 05:31:00,321 INFO L413 NwaCegarLoop]: 543 mSDtfsCounter, 3817 mSDsluCounter, 1376 mSDsCounter, 0 mSdLazyCounter, 4809 mSolverCounterSat, 728 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3995 SdHoareTripleChecker+Valid, 1919 SdHoareTripleChecker+Invalid, 5537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 728 IncrementalHoareTripleChecker+Valid, 4809 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:00,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3995 Valid, 1919 Invalid, 5537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [728 Valid, 4809 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-12-25 05:31:00,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1676 states. [2023-12-25 05:31:00,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1676 to 1475. [2023-12-25 05:31:00,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1475 states, 1148 states have (on average 1.6437282229965158) internal successors, (1887), 1184 states have internal predecessors, (1887), 252 states have call successors, (252), 72 states have call predecessors, (252), 74 states have return successors, (271), 232 states have call predecessors, (271), 247 states have call successors, (271) [2023-12-25 05:31:00,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1475 states to 1475 states and 2410 transitions. [2023-12-25 05:31:00,406 INFO L78 Accepts]: Start accepts. Automaton has 1475 states and 2410 transitions. Word has length 123 [2023-12-25 05:31:00,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:00,406 INFO L495 AbstractCegarLoop]: Abstraction has 1475 states and 2410 transitions. [2023-12-25 05:31:00,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 7 states have internal predecessors, (88), 6 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (16), 6 states have call predecessors, (16), 5 states have call successors, (16) [2023-12-25 05:31:00,407 INFO L276 IsEmpty]: Start isEmpty. Operand 1475 states and 2410 transitions. [2023-12-25 05:31:00,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-25 05:31:00,409 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:00,409 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] [2023-12-25 05:31:00,416 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Ended with exit code 0 [2023-12-25 05:31:00,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:31:00,618 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:00,618 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:00,618 INFO L85 PathProgramCache]: Analyzing trace with hash -364273281, now seen corresponding path program 1 times [2023-12-25 05:31:00,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:00,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1708605588] [2023-12-25 05:31:00,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:00,619 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:31:00,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:00,620 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:31:00,621 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-12-25 05:31:00,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:00,872 INFO L262 TraceCheckSpWp]: Trace formula consists of 765 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:31:00,875 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:00,970 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-25 05:31:00,971 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:31:01,228 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-25 05:31:01,229 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:01,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1708605588] [2023-12-25 05:31:01,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1708605588] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:31:01,229 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:31:01,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2023-12-25 05:31:01,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611517540] [2023-12-25 05:31:01,229 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:31:01,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-25 05:31:01,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:01,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-25 05:31:01,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:31:01,230 INFO L87 Difference]: Start difference. First operand 1475 states and 2410 transitions. Second operand has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 11 states have internal predecessors, (113), 6 states have call successors, (22), 5 states have call predecessors, (22), 6 states have return successors, (21), 7 states have call predecessors, (21), 5 states have call successors, (21) [2023-12-25 05:31:05,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:05,452 INFO L93 Difference]: Finished difference Result 5796 states and 9616 transitions. [2023-12-25 05:31:05,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-25 05:31:05,453 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 11 states have internal predecessors, (113), 6 states have call successors, (22), 5 states have call predecessors, (22), 6 states have return successors, (21), 7 states have call predecessors, (21), 5 states have call successors, (21) Word has length 122 [2023-12-25 05:31:05,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:05,475 INFO L225 Difference]: With dead ends: 5796 [2023-12-25 05:31:05,475 INFO L226 Difference]: Without dead ends: 4356 [2023-12-25 05:31:05,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2023-12-25 05:31:05,483 INFO L413 NwaCegarLoop]: 555 mSDtfsCounter, 5705 mSDsluCounter, 1771 mSDsCounter, 0 mSdLazyCounter, 5327 mSolverCounterSat, 1709 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5797 SdHoareTripleChecker+Valid, 2326 SdHoareTripleChecker+Invalid, 7036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1709 IncrementalHoareTripleChecker+Valid, 5327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:05,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5797 Valid, 2326 Invalid, 7036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1709 Valid, 5327 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-12-25 05:31:05,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4356 states. [2023-12-25 05:31:05,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4356 to 4232. [2023-12-25 05:31:05,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4232 states, 3277 states have (on average 1.6252670125114435) internal successors, (5326), 3371 states have internal predecessors, (5326), 736 states have call successors, (736), 215 states have call predecessors, (736), 218 states have return successors, (850), 681 states have call predecessors, (850), 731 states have call successors, (850) [2023-12-25 05:31:05,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4232 states to 4232 states and 6912 transitions. [2023-12-25 05:31:05,748 INFO L78 Accepts]: Start accepts. Automaton has 4232 states and 6912 transitions. Word has length 122 [2023-12-25 05:31:05,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:05,748 INFO L495 AbstractCegarLoop]: Abstraction has 4232 states and 6912 transitions. [2023-12-25 05:31:05,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 11 states have internal predecessors, (113), 6 states have call successors, (22), 5 states have call predecessors, (22), 6 states have return successors, (21), 7 states have call predecessors, (21), 5 states have call successors, (21) [2023-12-25 05:31:05,748 INFO L276 IsEmpty]: Start isEmpty. Operand 4232 states and 6912 transitions. [2023-12-25 05:31:05,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-25 05:31:05,750 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:05,750 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-25 05:31:05,762 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2023-12-25 05:31:05,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:31:05,958 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:05,958 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:05,958 INFO L85 PathProgramCache]: Analyzing trace with hash 610860556, now seen corresponding path program 1 times [2023-12-25 05:31:05,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:05,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [391196332] [2023-12-25 05:31:05,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:05,959 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:31:05,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:05,963 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:31:05,964 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2023-12-25 05:31:06,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:06,234 INFO L262 TraceCheckSpWp]: Trace formula consists of 776 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-25 05:31:06,237 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:06,412 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-25 05:31:06,412 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:06,413 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:06,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [391196332] [2023-12-25 05:31:06,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [391196332] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:06,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:06,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 05:31:06,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777258225] [2023-12-25 05:31:06,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:06,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 05:31:06,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:06,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 05:31:06,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-12-25 05:31:06,425 INFO L87 Difference]: Start difference. First operand 4232 states and 6912 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 6 states have call successors, (17), 5 states have call predecessors, (17), 5 states have return successors, (16), 7 states have call predecessors, (16), 5 states have call successors, (16) [2023-12-25 05:31:11,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:11,122 INFO L93 Difference]: Finished difference Result 12007 states and 19934 transitions. [2023-12-25 05:31:11,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-25 05:31:11,124 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 6 states have call successors, (17), 5 states have call predecessors, (17), 5 states have return successors, (16), 7 states have call predecessors, (16), 5 states have call successors, (16) Word has length 128 [2023-12-25 05:31:11,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:11,175 INFO L225 Difference]: With dead ends: 12007 [2023-12-25 05:31:11,175 INFO L226 Difference]: Without dead ends: 7810 [2023-12-25 05:31:11,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2023-12-25 05:31:11,194 INFO L413 NwaCegarLoop]: 616 mSDtfsCounter, 3137 mSDsluCounter, 1846 mSDsCounter, 0 mSdLazyCounter, 6696 mSolverCounterSat, 746 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3254 SdHoareTripleChecker+Valid, 2462 SdHoareTripleChecker+Invalid, 7442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 746 IncrementalHoareTripleChecker+Valid, 6696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:11,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3254 Valid, 2462 Invalid, 7442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [746 Valid, 6696 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-12-25 05:31:11,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7810 states. [2023-12-25 05:31:11,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7810 to 7598. [2023-12-25 05:31:11,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7598 states, 5821 states have (on average 1.613983851571895) internal successors, (9395), 6008 states have internal predecessors, (9395), 1387 states have call successors, (1387), 359 states have call predecessors, (1387), 389 states have return successors, (1682), 1316 states have call predecessors, (1682), 1382 states have call successors, (1682) [2023-12-25 05:31:11,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7598 states to 7598 states and 12464 transitions. [2023-12-25 05:31:11,711 INFO L78 Accepts]: Start accepts. Automaton has 7598 states and 12464 transitions. Word has length 128 [2023-12-25 05:31:11,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:11,712 INFO L495 AbstractCegarLoop]: Abstraction has 7598 states and 12464 transitions. [2023-12-25 05:31:11,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 6 states have call successors, (17), 5 states have call predecessors, (17), 5 states have return successors, (16), 7 states have call predecessors, (16), 5 states have call successors, (16) [2023-12-25 05:31:11,712 INFO L276 IsEmpty]: Start isEmpty. Operand 7598 states and 12464 transitions. [2023-12-25 05:31:11,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-25 05:31:11,715 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:11,715 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-25 05:31:11,730 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2023-12-25 05:31:11,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:31:11,926 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:11,926 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:11,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1722532082, now seen corresponding path program 1 times [2023-12-25 05:31:11,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:11,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [977274764] [2023-12-25 05:31:11,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:11,928 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:31:11,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:11,929 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:31:11,948 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2023-12-25 05:31:12,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:12,193 INFO L262 TraceCheckSpWp]: Trace formula consists of 776 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-25 05:31:12,196 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:12,343 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-25 05:31:12,343 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:12,343 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:12,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [977274764] [2023-12-25 05:31:12,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [977274764] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:12,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:12,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-25 05:31:12,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575465481] [2023-12-25 05:31:12,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:12,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-25 05:31:12,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:12,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-25 05:31:12,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:31:12,345 INFO L87 Difference]: Start difference. First operand 7598 states and 12464 transitions. Second operand has 11 states, 10 states have (on average 8.6) internal successors, (86), 9 states have internal predecessors, (86), 6 states have call successors, (16), 4 states have call predecessors, (16), 6 states have return successors, (16), 8 states have call predecessors, (16), 5 states have call successors, (16) [2023-12-25 05:31:15,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:15,159 INFO L93 Difference]: Finished difference Result 13428 states and 22004 transitions. [2023-12-25 05:31:15,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:31:15,160 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.6) internal successors, (86), 9 states have internal predecessors, (86), 6 states have call successors, (16), 4 states have call predecessors, (16), 6 states have return successors, (16), 8 states have call predecessors, (16), 5 states have call successors, (16) Word has length 128 [2023-12-25 05:31:15,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:15,195 INFO L225 Difference]: With dead ends: 13428 [2023-12-25 05:31:15,195 INFO L226 Difference]: Without dead ends: 7568 [2023-12-25 05:31:15,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2023-12-25 05:31:15,213 INFO L413 NwaCegarLoop]: 341 mSDtfsCounter, 1298 mSDsluCounter, 1858 mSDsCounter, 0 mSdLazyCounter, 4584 mSolverCounterSat, 375 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1298 SdHoareTripleChecker+Valid, 2199 SdHoareTripleChecker+Invalid, 4959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 375 IncrementalHoareTripleChecker+Valid, 4584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:15,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1298 Valid, 2199 Invalid, 4959 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [375 Valid, 4584 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-25 05:31:15,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7568 states. [2023-12-25 05:31:15,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7568 to 7568. [2023-12-25 05:31:15,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7568 states, 5806 states have (on average 1.6129865656217706) internal successors, (9365), 5993 states have internal predecessors, (9365), 1372 states have call successors, (1372), 359 states have call predecessors, (1372), 389 states have return successors, (1667), 1301 states have call predecessors, (1667), 1367 states have call successors, (1667) [2023-12-25 05:31:15,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7568 states to 7568 states and 12404 transitions. [2023-12-25 05:31:15,734 INFO L78 Accepts]: Start accepts. Automaton has 7568 states and 12404 transitions. Word has length 128 [2023-12-25 05:31:15,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:15,735 INFO L495 AbstractCegarLoop]: Abstraction has 7568 states and 12404 transitions. [2023-12-25 05:31:15,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.6) internal successors, (86), 9 states have internal predecessors, (86), 6 states have call successors, (16), 4 states have call predecessors, (16), 6 states have return successors, (16), 8 states have call predecessors, (16), 5 states have call successors, (16) [2023-12-25 05:31:15,735 INFO L276 IsEmpty]: Start isEmpty. Operand 7568 states and 12404 transitions. [2023-12-25 05:31:15,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-25 05:31:15,737 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:15,737 INFO L195 NwaCegarLoop]: trace histogram [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, 1] [2023-12-25 05:31:15,745 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 05:31:15,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:31:15,945 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:15,946 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:15,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1382922134, now seen corresponding path program 1 times [2023-12-25 05:31:15,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:15,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2055833215] [2023-12-25 05:31:15,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:15,946 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:31:15,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:15,947 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:31:15,948 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2023-12-25 05:31:16,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:16,234 INFO L262 TraceCheckSpWp]: Trace formula consists of 799 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:31:16,246 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:16,371 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-25 05:31:16,371 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:16,371 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:16,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2055833215] [2023-12-25 05:31:16,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2055833215] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:16,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:16,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:31:16,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780969461] [2023-12-25 05:31:16,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:16,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:31:16,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:16,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:31:16,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:31:16,372 INFO L87 Difference]: Start difference. First operand 7568 states and 12404 transitions. Second operand has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 6 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) [2023-12-25 05:31:19,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:19,787 INFO L93 Difference]: Finished difference Result 22978 states and 38549 transitions. [2023-12-25 05:31:19,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:31:19,792 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 6 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) Word has length 136 [2023-12-25 05:31:19,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:19,866 INFO L225 Difference]: With dead ends: 22978 [2023-12-25 05:31:19,866 INFO L226 Difference]: Without dead ends: 15448 [2023-12-25 05:31:19,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:31:19,895 INFO L413 NwaCegarLoop]: 612 mSDtfsCounter, 2051 mSDsluCounter, 881 mSDsCounter, 0 mSdLazyCounter, 3312 mSolverCounterSat, 477 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2167 SdHoareTripleChecker+Valid, 1493 SdHoareTripleChecker+Invalid, 3789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 477 IncrementalHoareTripleChecker+Valid, 3312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:19,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2167 Valid, 1493 Invalid, 3789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [477 Valid, 3312 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-25 05:31:19,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15448 states. [2023-12-25 05:31:20,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15448 to 15179. [2023-12-25 05:31:20,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15179 states, 11494 states have (on average 1.606316338959457) internal successors, (18463), 11912 states have internal predecessors, (18463), 2941 states have call successors, (2941), 647 states have call predecessors, (2941), 743 states have return successors, (3848), 2832 states have call predecessors, (3848), 2936 states have call successors, (3848) [2023-12-25 05:31:21,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15179 states to 15179 states and 25252 transitions. [2023-12-25 05:31:21,052 INFO L78 Accepts]: Start accepts. Automaton has 15179 states and 25252 transitions. Word has length 136 [2023-12-25 05:31:21,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:21,052 INFO L495 AbstractCegarLoop]: Abstraction has 15179 states and 25252 transitions. [2023-12-25 05:31:21,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 6 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) [2023-12-25 05:31:21,052 INFO L276 IsEmpty]: Start isEmpty. Operand 15179 states and 25252 transitions. [2023-12-25 05:31:21,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-25 05:31:21,055 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:21,055 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1] [2023-12-25 05:31:21,064 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Ended with exit code 0 [2023-12-25 05:31:21,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:31:21,264 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:21,264 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:21,265 INFO L85 PathProgramCache]: Analyzing trace with hash -1272021137, now seen corresponding path program 1 times [2023-12-25 05:31:21,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:21,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1881396824] [2023-12-25 05:31:21,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:21,265 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:31:21,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:21,267 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:31:21,298 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2023-12-25 05:31:21,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:21,586 INFO L262 TraceCheckSpWp]: Trace formula consists of 800 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:31:21,588 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:21,730 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-25 05:31:21,730 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:21,730 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:21,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1881396824] [2023-12-25 05:31:21,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1881396824] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:21,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:21,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:31:21,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725719883] [2023-12-25 05:31:21,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:21,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:31:21,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:21,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:31:21,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:31:21,732 INFO L87 Difference]: Start difference. First operand 15179 states and 25252 transitions. Second operand has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 6 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) [2023-12-25 05:31:26,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:26,874 INFO L93 Difference]: Finished difference Result 48728 states and 83734 transitions. [2023-12-25 05:31:26,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:31:26,875 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 6 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) Word has length 137 [2023-12-25 05:31:26,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:27,129 INFO L225 Difference]: With dead ends: 48728 [2023-12-25 05:31:27,129 INFO L226 Difference]: Without dead ends: 33589 [2023-12-25 05:31:27,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:31:27,191 INFO L413 NwaCegarLoop]: 618 mSDtfsCounter, 2058 mSDsluCounter, 896 mSDsCounter, 0 mSdLazyCounter, 3321 mSolverCounterSat, 478 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2175 SdHoareTripleChecker+Valid, 1514 SdHoareTripleChecker+Invalid, 3799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 478 IncrementalHoareTripleChecker+Valid, 3321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:27,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2175 Valid, 1514 Invalid, 3799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [478 Valid, 3321 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-25 05:31:27,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33589 states. [2023-12-25 05:31:29,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33589 to 33140. [2023-12-25 05:31:29,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33140 states, 24745 states have (on average 1.6019397858153162) internal successors, (39640), 25751 states have internal predecessors, (39640), 6874 states have call successors, (6874), 1223 states have call predecessors, (6874), 1520 states have return successors, (10020), 6707 states have call predecessors, (10020), 6869 states have call successors, (10020) [2023-12-25 05:31:29,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33140 states to 33140 states and 56534 transitions. [2023-12-25 05:31:29,979 INFO L78 Accepts]: Start accepts. Automaton has 33140 states and 56534 transitions. Word has length 137 [2023-12-25 05:31:29,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:29,979 INFO L495 AbstractCegarLoop]: Abstraction has 33140 states and 56534 transitions. [2023-12-25 05:31:29,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 6 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) [2023-12-25 05:31:29,979 INFO L276 IsEmpty]: Start isEmpty. Operand 33140 states and 56534 transitions. [2023-12-25 05:31:29,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-25 05:31:29,982 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:29,982 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1] [2023-12-25 05:31:29,991 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2023-12-25 05:31:30,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:31:30,195 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:30,195 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:30,195 INFO L85 PathProgramCache]: Analyzing trace with hash 80600187, now seen corresponding path program 1 times [2023-12-25 05:31:30,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:30,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [90485547] [2023-12-25 05:31:30,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:30,196 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:31:30,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:30,197 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:31:30,216 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2023-12-25 05:31:30,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:30,505 INFO L262 TraceCheckSpWp]: Trace formula consists of 801 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:31:30,508 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:30,797 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-25 05:31:30,797 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:30,797 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:30,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [90485547] [2023-12-25 05:31:30,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [90485547] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:30,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:30,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:31:30,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120804371] [2023-12-25 05:31:30,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:30,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:31:30,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:30,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:31:30,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:31:30,798 INFO L87 Difference]: Start difference. First operand 33140 states and 56534 transitions. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 6 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) [2023-12-25 05:31:40,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:40,009 INFO L93 Difference]: Finished difference Result 111178 states and 198638 transitions. [2023-12-25 05:31:40,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:31:40,010 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 6 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) Word has length 138 [2023-12-25 05:31:40,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:40,862 INFO L225 Difference]: With dead ends: 111178 [2023-12-25 05:31:40,862 INFO L226 Difference]: Without dead ends: 78082 [2023-12-25 05:31:41,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:31:41,003 INFO L413 NwaCegarLoop]: 624 mSDtfsCounter, 3152 mSDsluCounter, 619 mSDsCounter, 0 mSdLazyCounter, 2608 mSolverCounterSat, 742 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3270 SdHoareTripleChecker+Valid, 1243 SdHoareTripleChecker+Invalid, 3350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 742 IncrementalHoareTripleChecker+Valid, 2608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:41,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3270 Valid, 1243 Invalid, 3350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [742 Valid, 2608 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-25 05:31:41,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78082 states. [2023-12-25 05:31:46,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78082 to 77249. [2023-12-25 05:31:47,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77249 states, 56908 states have (on average 1.599441203345751) internal successors, (91021), 59450 states have internal predecessors, (91021), 17059 states have call successors, (17059), 2375 states have call predecessors, (17059), 3281 states have return successors, (28674), 16830 states have call predecessors, (28674), 17054 states have call successors, (28674) [2023-12-25 05:31:48,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77249 states to 77249 states and 136754 transitions. [2023-12-25 05:31:48,052 INFO L78 Accepts]: Start accepts. Automaton has 77249 states and 136754 transitions. Word has length 138 [2023-12-25 05:31:48,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:48,052 INFO L495 AbstractCegarLoop]: Abstraction has 77249 states and 136754 transitions. [2023-12-25 05:31:48,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 6 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) [2023-12-25 05:31:48,053 INFO L276 IsEmpty]: Start isEmpty. Operand 77249 states and 136754 transitions. [2023-12-25 05:31:48,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-25 05:31:48,055 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:48,055 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2023-12-25 05:31:48,066 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2023-12-25 05:31:48,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:31:48,260 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:48,260 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:48,260 INFO L85 PathProgramCache]: Analyzing trace with hash 216279094, now seen corresponding path program 1 times [2023-12-25 05:31:48,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:48,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [812956164] [2023-12-25 05:31:48,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:48,261 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:31:48,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:48,262 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:31:48,262 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 (32)] Waiting until timeout for monitored process [2023-12-25 05:31:48,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:48,551 INFO L262 TraceCheckSpWp]: Trace formula consists of 802 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-25 05:31:48,554 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:48,682 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-25 05:31:48,682 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:48,682 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:48,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [812956164] [2023-12-25 05:31:48,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [812956164] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:48,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:48,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-25 05:31:48,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378569433] [2023-12-25 05:31:48,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:48,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-25 05:31:48,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:48,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-25 05:31:48,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-25 05:31:48,684 INFO L87 Difference]: Start difference. First operand 77249 states and 136754 transitions. Second operand has 10 states, 10 states have (on average 9.5) internal successors, (95), 10 states have internal predecessors, (95), 7 states have call successors, (16), 4 states have call predecessors, (16), 5 states have return successors, (15), 7 states have call predecessors, (15), 6 states have call successors, (15) [2023-12-25 05:32:07,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:32:07,573 INFO L93 Difference]: Finished difference Result 207155 states and 368505 transitions. [2023-12-25 05:32:07,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-12-25 05:32:07,574 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.5) internal successors, (95), 10 states have internal predecessors, (95), 7 states have call successors, (16), 4 states have call predecessors, (16), 5 states have return successors, (15), 7 states have call predecessors, (15), 6 states have call successors, (15) Word has length 139 [2023-12-25 05:32:07,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:32:08,959 INFO L225 Difference]: With dead ends: 207155 [2023-12-25 05:32:08,959 INFO L226 Difference]: Without dead ends: 150425 [2023-12-25 05:32:09,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=182, Invalid=748, Unknown=0, NotChecked=0, Total=930 [2023-12-25 05:32:09,313 INFO L413 NwaCegarLoop]: 321 mSDtfsCounter, 2762 mSDsluCounter, 2168 mSDsCounter, 0 mSdLazyCounter, 6102 mSolverCounterSat, 616 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2842 SdHoareTripleChecker+Valid, 2489 SdHoareTripleChecker+Invalid, 6718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 616 IncrementalHoareTripleChecker+Valid, 6102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-12-25 05:32:09,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2842 Valid, 2489 Invalid, 6718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [616 Valid, 6102 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-12-25 05:32:09,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150425 states. [2023-12-25 05:32:21,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150425 to 146571. [2023-12-25 05:32:22,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146571 states, 108620 states have (on average 1.5860983244338058) internal successors, (172282), 113035 states have internal predecessors, (172282), 31164 states have call successors, (31164), 4648 states have call predecessors, (31164), 6786 states have return successors, (53348), 31210 states have call predecessors, (53348), 31159 states have call successors, (53348) [2023-12-25 05:32:23,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146571 states to 146571 states and 256794 transitions. [2023-12-25 05:32:23,912 INFO L78 Accepts]: Start accepts. Automaton has 146571 states and 256794 transitions. Word has length 139 [2023-12-25 05:32:23,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:32:23,913 INFO L495 AbstractCegarLoop]: Abstraction has 146571 states and 256794 transitions. [2023-12-25 05:32:23,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.5) internal successors, (95), 10 states have internal predecessors, (95), 7 states have call successors, (16), 4 states have call predecessors, (16), 5 states have return successors, (15), 7 states have call predecessors, (15), 6 states have call successors, (15) [2023-12-25 05:32:23,913 INFO L276 IsEmpty]: Start isEmpty. Operand 146571 states and 256794 transitions. [2023-12-25 05:32:23,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-12-25 05:32:23,916 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:32:23,916 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:32:23,923 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2023-12-25 05:32:24,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:32:24,120 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:32:24,120 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:32:24,121 INFO L85 PathProgramCache]: Analyzing trace with hash 19504750, now seen corresponding path program 1 times [2023-12-25 05:32:24,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:32:24,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1231449913] [2023-12-25 05:32:24,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:32:24,121 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:32:24,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:32:24,122 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:32:24,124 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2023-12-25 05:32:24,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:32:24,572 INFO L262 TraceCheckSpWp]: Trace formula consists of 811 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-25 05:32:24,575 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:32:25,006 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-25 05:32:25,006 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:32:25,006 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:32:25,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1231449913] [2023-12-25 05:32:25,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1231449913] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:32:25,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:32:25,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:32:25,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901132602] [2023-12-25 05:32:25,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:32:25,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:32:25,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:32:25,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:32:25,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:32:25,008 INFO L87 Difference]: Start difference. First operand 146571 states and 256794 transitions. Second operand has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 6 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (16), 6 states have call predecessors, (16), 5 states have call successors, (16)