/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 [2023-12-16 17:22:32,987 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 17:22:33,066 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 17:22:33,070 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 17:22:33,070 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 17:22:33,086 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 17:22:33,087 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 17:22:33,087 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 17:22:33,088 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 17:22:33,088 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 17:22:33,089 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 17:22:33,089 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 17:22:33,089 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 17:22:33,090 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 17:22:33,090 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 17:22:33,090 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 17:22:33,091 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 17:22:33,091 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 17:22:33,091 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 17:22:33,092 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 17:22:33,092 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 17:22:33,097 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 17:22:33,097 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 17:22:33,098 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 17:22:33,098 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 17:22:33,098 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 17:22:33,098 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 17:22:33,098 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 17:22:33,099 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 17:22:33,099 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 17:22:33,099 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 17:22:33,099 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 17:22:33,099 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 17:22:33,100 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 17:22:33,100 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:22:33,100 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 17:22:33,100 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 17:22:33,101 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 17:22:33,101 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 17:22:33,101 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 17:22:33,101 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 17:22:33,101 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 17:22:33,102 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 17:22:33,102 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 17:22:33,102 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 17:22:33,102 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 17:22:33,102 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 17:22:33,305 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 17:22:33,329 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 17:22:33,331 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 17:22:33,332 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 17:22:33,332 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 17:22:33,334 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec2_product23.cil.c [2023-12-16 17:22:34,528 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 17:22:34,828 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 17:22:34,829 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product23.cil.c [2023-12-16 17:22:34,861 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da91706e3/1cf835d32ace4d4385f38ec194d00746/FLAG9459e7aa0 [2023-12-16 17:22:34,876 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da91706e3/1cf835d32ace4d4385f38ec194d00746 [2023-12-16 17:22:34,879 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 17:22:34,880 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 17:22:34,882 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 17:22:34,882 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 17:22:34,886 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 17:22:34,887 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:22:34" (1/1) ... [2023-12-16 17:22:34,888 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61d2c1ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:22:34, skipping insertion in model container [2023-12-16 17:22:34,888 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:22:34" (1/1) ... [2023-12-16 17:22:34,953 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 17:22:35,340 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] [2023-12-16 17:22:35,454 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:22:35,472 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-16 17:22:35,495 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 17:22:35,565 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] [2023-12-16 17:22:35,608 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:22:35,619 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 17:22:35,627 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [48] [2023-12-16 17:22:35,628 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [235] [2023-12-16 17:22:35,629 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [273] [2023-12-16 17:22:35,629 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [941] [2023-12-16 17:22:35,629 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1307] [2023-12-16 17:22:35,629 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1665] [2023-12-16 17:22:35,629 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [1674] [2023-12-16 17:22:35,629 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1766] [2023-12-16 17:22:35,629 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [1778] [2023-12-16 17:22:35,629 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1898] [2023-12-16 17:22:35,663 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] [2023-12-16 17:22:35,710 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:22:35,735 INFO L206 MainTranslator]: Completed translation [2023-12-16 17:22:35,735 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:22:35 WrapperNode [2023-12-16 17:22:35,735 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 17:22:35,736 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 17:22:35,736 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 17:22:35,736 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 17:22:35,742 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:22:35" (1/1) ... [2023-12-16 17:22:35,779 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:22:35" (1/1) ... [2023-12-16 17:22:35,834 INFO L138 Inliner]: procedures = 98, calls = 347, calls flagged for inlining = 26, calls inlined = 23, statements flattened = 865 [2023-12-16 17:22:35,834 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 17:22:35,835 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 17:22:35,835 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 17:22:35,835 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 17:22:35,844 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:22:35" (1/1) ... [2023-12-16 17:22:35,844 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:22:35" (1/1) ... [2023-12-16 17:22:35,853 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:22:35" (1/1) ... [2023-12-16 17:22:35,877 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2023-12-16 17:22:35,877 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:22:35" (1/1) ... [2023-12-16 17:22:35,877 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:22:35" (1/1) ... [2023-12-16 17:22:35,895 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:22:35" (1/1) ... [2023-12-16 17:22:35,905 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:22:35" (1/1) ... [2023-12-16 17:22:35,911 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:22:35" (1/1) ... [2023-12-16 17:22:35,919 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:22:35" (1/1) ... [2023-12-16 17:22:35,929 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 17:22:35,930 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 17:22:35,930 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 17:22:35,930 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 17:22:35,931 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:22:35" (1/1) ... [2023-12-16 17:22:35,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:22:35,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 17:22:35,958 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 17:22:35,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 17:22:35,997 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2023-12-16 17:22:35,997 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2023-12-16 17:22:35,997 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-12-16 17:22:35,997 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-12-16 17:22:35,997 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-12-16 17:22:35,997 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-12-16 17:22:35,998 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-16 17:22:35,998 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-16 17:22:35,998 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-12-16 17:22:35,998 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-12-16 17:22:35,998 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-12-16 17:22:36,001 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-12-16 17:22:36,001 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2023-12-16 17:22:36,001 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2023-12-16 17:22:36,001 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2023-12-16 17:22:36,001 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2023-12-16 17:22:36,001 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-12-16 17:22:36,001 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-12-16 17:22:36,001 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-12-16 17:22:36,001 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-12-16 17:22:36,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 17:22:36,001 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2023-12-16 17:22:36,002 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2023-12-16 17:22:36,002 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-12-16 17:22:36,002 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-12-16 17:22:36,002 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2023-12-16 17:22:36,002 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2023-12-16 17:22:36,002 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-12-16 17:22:36,002 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-12-16 17:22:36,002 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-16 17:22:36,002 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-16 17:22:36,002 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2023-12-16 17:22:36,003 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2023-12-16 17:22:36,003 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-12-16 17:22:36,003 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-12-16 17:22:36,003 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-12-16 17:22:36,003 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-12-16 17:22:36,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 17:22:36,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-16 17:22:36,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-16 17:22:36,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-16 17:22:36,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-12-16 17:22:36,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2023-12-16 17:22:36,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2023-12-16 17:22:36,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2023-12-16 17:22:36,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2023-12-16 17:22:36,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2023-12-16 17:22:36,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2023-12-16 17:22:36,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2023-12-16 17:22:36,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12 [2023-12-16 17:22:36,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#13 [2023-12-16 17:22:36,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#14 [2023-12-16 17:22:36,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#15 [2023-12-16 17:22:36,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#16 [2023-12-16 17:22:36,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#17 [2023-12-16 17:22:36,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#18 [2023-12-16 17:22:36,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#19 [2023-12-16 17:22:36,005 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-12-16 17:22:36,005 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-12-16 17:22:36,006 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-12-16 17:22:36,006 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-12-16 17:22:36,007 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-12-16 17:22:36,007 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-12-16 17:22:36,007 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-12-16 17:22:36,007 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-12-16 17:22:36,007 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-12-16 17:22:36,007 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-12-16 17:22:36,007 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-12-16 17:22:36,008 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-12-16 17:22:36,008 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__weight [2023-12-16 17:22:36,008 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__weight [2023-12-16 17:22:36,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 17:22:36,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 17:22:36,008 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-12-16 17:22:36,008 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-12-16 17:22:36,226 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 17:22:36,230 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 17:22:37,380 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 17:22:37,544 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 17:22:37,544 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 17:22:37,544 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:22:37 BoogieIcfgContainer [2023-12-16 17:22:37,545 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 17:22:37,546 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 17:22:37,546 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 17:22:37,549 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 17:22:37,549 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 05:22:34" (1/3) ... [2023-12-16 17:22:37,550 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b57158 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:22:37, skipping insertion in model container [2023-12-16 17:22:37,551 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:22:35" (2/3) ... [2023-12-16 17:22:37,551 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b57158 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:22:37, skipping insertion in model container [2023-12-16 17:22:37,551 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:22:37" (3/3) ... [2023-12-16 17:22:37,553 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product23.cil.c [2023-12-16 17:22:37,569 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 17:22:37,570 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 17:22:37,641 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 17:22:37,646 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;@7a609016, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 17:22:37,646 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 17:22:37,655 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) [2023-12-16 17:22:37,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 17:22:37,685 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:37,686 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] [2023-12-16 17:22:37,687 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:37,691 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:37,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1135226016, now seen corresponding path program 1 times [2023-12-16 17:22:37,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:37,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1321534124] [2023-12-16 17:22:37,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:37,704 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:37,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:37,707 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:22:37,712 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 17:22:38,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:38,146 INFO L262 TraceCheckSpWp]: Trace formula consists of 728 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 17:22:38,153 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:38,195 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-16 17:22:38,195 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:38,196 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:38,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1321534124] [2023-12-16 17:22:38,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1321534124] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:38,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:38,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:22:38,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783444673] [2023-12-16 17:22:38,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:38,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 17:22:38,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:38,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 17:22:38,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 17:22:38,235 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) [2023-12-16 17:22:38,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:38,371 INFO L93 Difference]: Finished difference Result 583 states and 976 transitions. [2023-12-16 17:22:38,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 17:22:38,377 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 [2023-12-16 17:22:38,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:38,397 INFO L225 Difference]: With dead ends: 583 [2023-12-16 17:22:38,397 INFO L226 Difference]: Without dead ends: 561 [2023-12-16 17:22:38,401 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 [2023-12-16 17:22:38,403 INFO L413 NwaCegarLoop]: 925 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2023-12-16 17:22:38,404 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] [2023-12-16 17:22:38,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2023-12-16 17:22:38,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 561. [2023-12-16 17:22:38,491 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) [2023-12-16 17:22:38,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 937 transitions. [2023-12-16 17:22:38,501 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 937 transitions. Word has length 91 [2023-12-16 17:22:38,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:22:38,502 INFO L495 AbstractCegarLoop]: Abstraction has 561 states and 937 transitions. [2023-12-16 17:22:38,503 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) [2023-12-16 17:22:38,503 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 937 transitions. [2023-12-16 17:22:38,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-16 17:22:38,511 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:38,511 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] [2023-12-16 17:22:38,520 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-16 17:22:38,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:38,717 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:38,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:38,718 INFO L85 PathProgramCache]: Analyzing trace with hash -40425298, now seen corresponding path program 1 times [2023-12-16 17:22:38,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:38,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1131220056] [2023-12-16 17:22:38,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:38,719 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:38,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:38,720 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:22:38,722 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 17:22:39,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:39,023 INFO L262 TraceCheckSpWp]: Trace formula consists of 729 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:22:39,027 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:39,062 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-16 17:22:39,063 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:39,063 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:39,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1131220056] [2023-12-16 17:22:39,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1131220056] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:39,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:39,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:22:39,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083268501] [2023-12-16 17:22:39,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:39,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:22:39,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:39,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:22:39,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:22:39,066 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) [2023-12-16 17:22:39,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:39,195 INFO L93 Difference]: Finished difference Result 1110 states and 1856 transitions. [2023-12-16 17:22:39,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:22:39,196 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 [2023-12-16 17:22:39,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:39,200 INFO L225 Difference]: With dead ends: 1110 [2023-12-16 17:22:39,201 INFO L226 Difference]: Without dead ends: 561 [2023-12-16 17:22:39,204 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 [2023-12-16 17:22:39,206 INFO L413 NwaCegarLoop]: 910 mSDtfsCounter, 14 mSDsluCounter, 1815 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2023-12-16 17:22:39,206 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] [2023-12-16 17:22:39,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2023-12-16 17:22:39,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 561. [2023-12-16 17:22:39,225 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) [2023-12-16 17:22:39,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 936 transitions. [2023-12-16 17:22:39,230 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 936 transitions. Word has length 92 [2023-12-16 17:22:39,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:22:39,230 INFO L495 AbstractCegarLoop]: Abstraction has 561 states and 936 transitions. [2023-12-16 17:22:39,230 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) [2023-12-16 17:22:39,230 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 936 transitions. [2023-12-16 17:22:39,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-16 17:22:39,234 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:39,235 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] [2023-12-16 17:22:39,254 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-16 17:22:39,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:39,452 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:39,452 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:39,453 INFO L85 PathProgramCache]: Analyzing trace with hash 358389549, now seen corresponding path program 1 times [2023-12-16 17:22:39,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:39,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [370658704] [2023-12-16 17:22:39,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:39,454 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:39,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:39,455 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:22:39,457 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-16 17:22:39,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:39,787 INFO L262 TraceCheckSpWp]: Trace formula consists of 730 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:22:39,791 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:39,811 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-16 17:22:39,812 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:39,812 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:39,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [370658704] [2023-12-16 17:22:39,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [370658704] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:39,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:39,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:22:39,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569757554] [2023-12-16 17:22:39,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:39,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:22:39,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:39,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:22:39,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:22:39,814 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) [2023-12-16 17:22:39,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:39,940 INFO L93 Difference]: Finished difference Result 1110 states and 1855 transitions. [2023-12-16 17:22:39,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:22:39,941 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 [2023-12-16 17:22:39,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:39,945 INFO L225 Difference]: With dead ends: 1110 [2023-12-16 17:22:39,946 INFO L226 Difference]: Without dead ends: 561 [2023-12-16 17:22:39,948 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 [2023-12-16 17:22:39,950 INFO L413 NwaCegarLoop]: 910 mSDtfsCounter, 12 mSDsluCounter, 1815 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2023-12-16 17:22:39,952 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] [2023-12-16 17:22:39,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2023-12-16 17:22:39,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 561. [2023-12-16 17:22:39,977 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) [2023-12-16 17:22:39,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 935 transitions. [2023-12-16 17:22:39,982 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 935 transitions. Word has length 93 [2023-12-16 17:22:39,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:22:39,983 INFO L495 AbstractCegarLoop]: Abstraction has 561 states and 935 transitions. [2023-12-16 17:22:39,983 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) [2023-12-16 17:22:39,983 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 935 transitions. [2023-12-16 17:22:39,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-16 17:22:39,986 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:39,986 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] [2023-12-16 17:22:39,999 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 [2023-12-16 17:22:40,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:40,195 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:40,196 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:40,196 INFO L85 PathProgramCache]: Analyzing trace with hash 214565642, now seen corresponding path program 1 times [2023-12-16 17:22:40,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:40,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2112867571] [2023-12-16 17:22:40,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:40,197 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:40,197 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:40,200 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:22:40,205 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-16 17:22:40,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:40,543 INFO L262 TraceCheckSpWp]: Trace formula consists of 731 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:22:40,547 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:40,568 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-16 17:22:40,568 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:40,568 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:40,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2112867571] [2023-12-16 17:22:40,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2112867571] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:40,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:40,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:22:40,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001300227] [2023-12-16 17:22:40,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:40,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:22:40,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:40,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:22:40,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:22:40,570 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) [2023-12-16 17:22:40,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:40,673 INFO L93 Difference]: Finished difference Result 1110 states and 1854 transitions. [2023-12-16 17:22:40,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:22:40,674 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 [2023-12-16 17:22:40,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:40,677 INFO L225 Difference]: With dead ends: 1110 [2023-12-16 17:22:40,677 INFO L226 Difference]: Without dead ends: 561 [2023-12-16 17:22:40,682 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 [2023-12-16 17:22:40,683 INFO L413 NwaCegarLoop]: 910 mSDtfsCounter, 10 mSDsluCounter, 1815 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2023-12-16 17:22:40,684 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] [2023-12-16 17:22:40,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2023-12-16 17:22:40,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 561. [2023-12-16 17:22:40,702 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) [2023-12-16 17:22:40,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 934 transitions. [2023-12-16 17:22:40,707 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 934 transitions. Word has length 94 [2023-12-16 17:22:40,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:22:40,707 INFO L495 AbstractCegarLoop]: Abstraction has 561 states and 934 transitions. [2023-12-16 17:22:40,707 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) [2023-12-16 17:22:40,708 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 934 transitions. [2023-12-16 17:22:40,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-16 17:22:40,710 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:40,711 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] [2023-12-16 17:22:40,723 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-16 17:22:40,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:40,919 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:40,919 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:40,919 INFO L85 PathProgramCache]: Analyzing trace with hash 428809545, now seen corresponding path program 1 times [2023-12-16 17:22:40,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:40,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [851922832] [2023-12-16 17:22:40,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:40,920 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:40,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:40,921 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:22:40,923 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-16 17:22:41,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:41,229 INFO L262 TraceCheckSpWp]: Trace formula consists of 732 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:22:41,232 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:41,272 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-16 17:22:41,273 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:41,273 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:41,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [851922832] [2023-12-16 17:22:41,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [851922832] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:41,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:41,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:22:41,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930280859] [2023-12-16 17:22:41,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:41,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:22:41,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:41,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:22:41,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:22:41,275 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) [2023-12-16 17:22:41,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:41,373 INFO L93 Difference]: Finished difference Result 1110 states and 1853 transitions. [2023-12-16 17:22:41,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:22:41,373 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 [2023-12-16 17:22:41,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:41,376 INFO L225 Difference]: With dead ends: 1110 [2023-12-16 17:22:41,377 INFO L226 Difference]: Without dead ends: 561 [2023-12-16 17:22:41,379 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 [2023-12-16 17:22:41,379 INFO L413 NwaCegarLoop]: 910 mSDtfsCounter, 8 mSDsluCounter, 1815 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2023-12-16 17:22:41,379 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] [2023-12-16 17:22:41,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2023-12-16 17:22:41,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 561. [2023-12-16 17:22:41,390 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) [2023-12-16 17:22:41,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 933 transitions. [2023-12-16 17:22:41,395 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 933 transitions. Word has length 95 [2023-12-16 17:22:41,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:22:41,395 INFO L495 AbstractCegarLoop]: Abstraction has 561 states and 933 transitions. [2023-12-16 17:22:41,395 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) [2023-12-16 17:22:41,396 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 933 transitions. [2023-12-16 17:22:41,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-16 17:22:41,398 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:41,399 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] [2023-12-16 17:22:41,406 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 (6)] Ended with exit code 0 [2023-12-16 17:22:41,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:41,607 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:41,607 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:41,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1141746330, now seen corresponding path program 1 times [2023-12-16 17:22:41,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:41,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [520128727] [2023-12-16 17:22:41,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:41,608 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:41,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:41,609 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:22:41,610 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-16 17:22:41,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:41,890 INFO L262 TraceCheckSpWp]: Trace formula consists of 733 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:22:41,893 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:41,926 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-16 17:22:41,927 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:41,927 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:41,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [520128727] [2023-12-16 17:22:41,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [520128727] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:41,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:41,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:22:41,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199470461] [2023-12-16 17:22:41,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:41,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:22:41,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:41,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:22:41,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:22:41,930 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) [2023-12-16 17:22:42,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:42,026 INFO L93 Difference]: Finished difference Result 1110 states and 1852 transitions. [2023-12-16 17:22:42,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:22:42,027 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 [2023-12-16 17:22:42,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:42,032 INFO L225 Difference]: With dead ends: 1110 [2023-12-16 17:22:42,032 INFO L226 Difference]: Without dead ends: 561 [2023-12-16 17:22:42,045 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 [2023-12-16 17:22:42,046 INFO L413 NwaCegarLoop]: 910 mSDtfsCounter, 6 mSDsluCounter, 1815 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:22:42,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2725 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:22:42,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2023-12-16 17:22:42,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 561. [2023-12-16 17:22:42,058 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) [2023-12-16 17:22:42,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 932 transitions. [2023-12-16 17:22:42,067 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 932 transitions. Word has length 96 [2023-12-16 17:22:42,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:22:42,068 INFO L495 AbstractCegarLoop]: Abstraction has 561 states and 932 transitions. [2023-12-16 17:22:42,068 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) [2023-12-16 17:22:42,068 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 932 transitions. [2023-12-16 17:22:42,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-16 17:22:42,071 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:42,071 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] [2023-12-16 17:22:42,080 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-16 17:22:42,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:42,280 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:42,280 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:42,280 INFO L85 PathProgramCache]: Analyzing trace with hash 2088446821, now seen corresponding path program 1 times [2023-12-16 17:22:42,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:42,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1072145644] [2023-12-16 17:22:42,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:42,281 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:42,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:42,282 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:22:42,283 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-16 17:22:42,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:42,543 INFO L262 TraceCheckSpWp]: Trace formula consists of 734 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 17:22:42,547 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:42,609 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-16 17:22:42,609 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:42,609 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:42,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1072145644] [2023-12-16 17:22:42,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1072145644] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:42,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:42,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:22:42,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224730018] [2023-12-16 17:22:42,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:42,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:22:42,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:42,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:22:42,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:22:42,611 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) [2023-12-16 17:22:42,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:42,796 INFO L93 Difference]: Finished difference Result 1076 states and 1784 transitions. [2023-12-16 17:22:42,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 17:22:42,797 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 [2023-12-16 17:22:42,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:42,804 INFO L225 Difference]: With dead ends: 1076 [2023-12-16 17:22:42,804 INFO L226 Difference]: Without dead ends: 575 [2023-12-16 17:22:42,807 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 [2023-12-16 17:22:42,808 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 [2023-12-16 17:22:42,808 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] [2023-12-16 17:22:42,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2023-12-16 17:22:42,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 573. [2023-12-16 17:22:42,822 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) [2023-12-16 17:22:42,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 950 transitions. [2023-12-16 17:22:42,827 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 950 transitions. Word has length 97 [2023-12-16 17:22:42,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:22:42,827 INFO L495 AbstractCegarLoop]: Abstraction has 573 states and 950 transitions. [2023-12-16 17:22:42,827 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) [2023-12-16 17:22:42,828 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 950 transitions. [2023-12-16 17:22:42,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-16 17:22:42,834 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:42,834 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] [2023-12-16 17:22:42,843 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 (8)] Forceful destruction successful, exit code 0 [2023-12-16 17:22:43,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:43,043 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:43,043 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:43,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1038324220, now seen corresponding path program 1 times [2023-12-16 17:22:43,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:43,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [722065896] [2023-12-16 17:22:43,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:43,044 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:43,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:43,046 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:22:43,048 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 (9)] Waiting until timeout for monitored process [2023-12-16 17:22:43,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:43,337 INFO L262 TraceCheckSpWp]: Trace formula consists of 734 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:22:43,340 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:43,370 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-16 17:22:43,370 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:43,370 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:43,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [722065896] [2023-12-16 17:22:43,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [722065896] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:43,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:43,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:22:43,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186240653] [2023-12-16 17:22:43,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:43,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:22:43,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:43,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:22:43,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:22:43,373 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) [2023-12-16 17:22:43,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:43,480 INFO L93 Difference]: Finished difference Result 1126 states and 1876 transitions. [2023-12-16 17:22:43,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:22:43,481 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 [2023-12-16 17:22:43,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:43,485 INFO L225 Difference]: With dead ends: 1126 [2023-12-16 17:22:43,485 INFO L226 Difference]: Without dead ends: 555 [2023-12-16 17:22:43,487 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 [2023-12-16 17:22:43,488 INFO L413 NwaCegarLoop]: 911 mSDtfsCounter, 3 mSDsluCounter, 1815 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:22:43,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2726 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:22:43,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2023-12-16 17:22:43,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2023-12-16 17:22:43,500 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) [2023-12-16 17:22:43,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 918 transitions. [2023-12-16 17:22:43,505 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 918 transitions. Word has length 97 [2023-12-16 17:22:43,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:22:43,505 INFO L495 AbstractCegarLoop]: Abstraction has 555 states and 918 transitions. [2023-12-16 17:22:43,505 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) [2023-12-16 17:22:43,505 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 918 transitions. [2023-12-16 17:22:43,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-16 17:22:43,508 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:43,509 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] [2023-12-16 17:22:43,520 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 [2023-12-16 17:22:43,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:43,718 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:43,718 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:43,718 INFO L85 PathProgramCache]: Analyzing trace with hash -581883577, now seen corresponding path program 1 times [2023-12-16 17:22:43,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:43,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1481337145] [2023-12-16 17:22:43,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:43,719 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:43,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:43,720 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:22:43,720 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-16 17:22:43,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:44,002 INFO L262 TraceCheckSpWp]: Trace formula consists of 735 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:22:44,006 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:44,034 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-16 17:22:44,034 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:44,034 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:44,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1481337145] [2023-12-16 17:22:44,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1481337145] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:44,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:44,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:22:44,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578883617] [2023-12-16 17:22:44,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:44,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:22:44,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:44,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:22:44,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:22:44,036 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) [2023-12-16 17:22:44,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:44,187 INFO L93 Difference]: Finished difference Result 1064 states and 1762 transitions. [2023-12-16 17:22:44,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:22:44,188 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 [2023-12-16 17:22:44,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:44,191 INFO L225 Difference]: With dead ends: 1064 [2023-12-16 17:22:44,191 INFO L226 Difference]: Without dead ends: 555 [2023-12-16 17:22:44,194 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 [2023-12-16 17:22:44,194 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 [2023-12-16 17:22:44,195 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] [2023-12-16 17:22:44,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2023-12-16 17:22:44,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2023-12-16 17:22:44,205 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) [2023-12-16 17:22:44,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 914 transitions. [2023-12-16 17:22:44,210 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 914 transitions. Word has length 98 [2023-12-16 17:22:44,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:22:44,210 INFO L495 AbstractCegarLoop]: Abstraction has 555 states and 914 transitions. [2023-12-16 17:22:44,210 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) [2023-12-16 17:22:44,210 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 914 transitions. [2023-12-16 17:22:44,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-16 17:22:44,213 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:44,213 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] [2023-12-16 17:22:44,223 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-16 17:22:44,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:44,419 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:44,419 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:44,419 INFO L85 PathProgramCache]: Analyzing trace with hash -353769784, now seen corresponding path program 1 times [2023-12-16 17:22:44,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:44,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [260166257] [2023-12-16 17:22:44,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:44,420 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:44,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:44,423 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:22:44,428 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-16 17:22:44,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:44,682 INFO L262 TraceCheckSpWp]: Trace formula consists of 736 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:22:44,685 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:44,714 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-16 17:22:44,714 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:44,714 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:44,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [260166257] [2023-12-16 17:22:44,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [260166257] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:44,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:44,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:22:44,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706258812] [2023-12-16 17:22:44,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:44,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:22:44,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:44,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:22:44,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:22:44,717 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) [2023-12-16 17:22:44,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:44,872 INFO L93 Difference]: Finished difference Result 1064 states and 1758 transitions. [2023-12-16 17:22:44,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:22:44,873 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 [2023-12-16 17:22:44,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:44,877 INFO L225 Difference]: With dead ends: 1064 [2023-12-16 17:22:44,877 INFO L226 Difference]: Without dead ends: 555 [2023-12-16 17:22:44,880 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 [2023-12-16 17:22:44,880 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 [2023-12-16 17:22:44,880 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] [2023-12-16 17:22:44,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2023-12-16 17:22:44,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2023-12-16 17:22:44,892 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) [2023-12-16 17:22:44,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 910 transitions. [2023-12-16 17:22:44,896 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 910 transitions. Word has length 99 [2023-12-16 17:22:44,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:22:44,896 INFO L495 AbstractCegarLoop]: Abstraction has 555 states and 910 transitions. [2023-12-16 17:22:44,896 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) [2023-12-16 17:22:44,897 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 910 transitions. [2023-12-16 17:22:44,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-16 17:22:44,899 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:44,899 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] [2023-12-16 17:22:44,915 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-16 17:22:45,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:45,109 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:45,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:45,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1271577428, now seen corresponding path program 1 times [2023-12-16 17:22:45,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:45,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1920610193] [2023-12-16 17:22:45,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:45,110 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:45,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:45,111 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:22:45,112 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-16 17:22:45,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:45,370 INFO L262 TraceCheckSpWp]: Trace formula consists of 737 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:22:45,374 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:45,400 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-16 17:22:45,401 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:45,401 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:45,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1920610193] [2023-12-16 17:22:45,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1920610193] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:45,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:45,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:22:45,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630594376] [2023-12-16 17:22:45,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:45,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:22:45,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:45,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:22:45,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:22:45,403 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) [2023-12-16 17:22:45,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:45,582 INFO L93 Difference]: Finished difference Result 1064 states and 1754 transitions. [2023-12-16 17:22:45,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:22:45,582 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 [2023-12-16 17:22:45,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:45,590 INFO L225 Difference]: With dead ends: 1064 [2023-12-16 17:22:45,590 INFO L226 Difference]: Without dead ends: 555 [2023-12-16 17:22:45,592 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 [2023-12-16 17:22:45,593 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 [2023-12-16 17:22:45,593 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] [2023-12-16 17:22:45,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2023-12-16 17:22:45,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2023-12-16 17:22:45,607 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) [2023-12-16 17:22:45,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 906 transitions. [2023-12-16 17:22:45,610 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 906 transitions. Word has length 100 [2023-12-16 17:22:45,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:22:45,611 INFO L495 AbstractCegarLoop]: Abstraction has 555 states and 906 transitions. [2023-12-16 17:22:45,611 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) [2023-12-16 17:22:45,611 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 906 transitions. [2023-12-16 17:22:45,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-16 17:22:45,615 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:45,615 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] [2023-12-16 17:22:45,626 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 [2023-12-16 17:22:45,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:45,824 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:45,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:45,824 INFO L85 PathProgramCache]: Analyzing trace with hash -919772884, now seen corresponding path program 1 times [2023-12-16 17:22:45,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:45,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1078106180] [2023-12-16 17:22:45,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:45,825 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:45,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:45,827 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:22:45,829 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-16 17:22:46,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:46,109 INFO L262 TraceCheckSpWp]: Trace formula consists of 736 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 17:22:46,113 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:46,179 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-16 17:22:46,179 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:46,180 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:46,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1078106180] [2023-12-16 17:22:46,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1078106180] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:46,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:46,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:22:46,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600573957] [2023-12-16 17:22:46,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:46,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:22:46,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:46,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:22:46,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:22:46,182 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) [2023-12-16 17:22:46,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:46,343 INFO L93 Difference]: Finished difference Result 1064 states and 1750 transitions. [2023-12-16 17:22:46,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 17:22:46,348 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 [2023-12-16 17:22:46,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:46,351 INFO L225 Difference]: With dead ends: 1064 [2023-12-16 17:22:46,351 INFO L226 Difference]: Without dead ends: 534 [2023-12-16 17:22:46,354 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 [2023-12-16 17:22:46,354 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 [2023-12-16 17:22:46,354 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] [2023-12-16 17:22:46,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2023-12-16 17:22:46,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 534. [2023-12-16 17:22:46,365 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) [2023-12-16 17:22:46,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 872 transitions. [2023-12-16 17:22:46,367 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 872 transitions. Word has length 100 [2023-12-16 17:22:46,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:22:46,368 INFO L495 AbstractCegarLoop]: Abstraction has 534 states and 872 transitions. [2023-12-16 17:22:46,368 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) [2023-12-16 17:22:46,368 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 872 transitions. [2023-12-16 17:22:46,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 17:22:46,370 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:46,370 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] [2023-12-16 17:22:46,382 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-16 17:22:46,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:46,579 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:46,579 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:46,580 INFO L85 PathProgramCache]: Analyzing trace with hash 941756045, now seen corresponding path program 1 times [2023-12-16 17:22:46,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:46,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1618965753] [2023-12-16 17:22:46,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:46,581 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:46,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:46,581 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:22:46,582 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-16 17:22:46,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:46,872 INFO L262 TraceCheckSpWp]: Trace formula consists of 738 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:22:46,875 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:46,920 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-16 17:22:46,920 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:46,920 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:46,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1618965753] [2023-12-16 17:22:46,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1618965753] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:46,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:46,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:22:46,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703529674] [2023-12-16 17:22:46,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:46,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:22:46,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:46,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:22:46,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:22:46,922 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) [2023-12-16 17:22:47,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:47,023 INFO L93 Difference]: Finished difference Result 1043 states and 1716 transitions. [2023-12-16 17:22:47,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:22:47,024 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 [2023-12-16 17:22:47,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:47,028 INFO L225 Difference]: With dead ends: 1043 [2023-12-16 17:22:47,028 INFO L226 Difference]: Without dead ends: 534 [2023-12-16 17:22:47,030 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 [2023-12-16 17:22:47,031 INFO L413 NwaCegarLoop]: 848 mSDtfsCounter, 39 mSDsluCounter, 1679 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2023-12-16 17:22:47,032 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] [2023-12-16 17:22:47,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2023-12-16 17:22:47,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 534. [2023-12-16 17:22:47,045 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) [2023-12-16 17:22:47,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 871 transitions. [2023-12-16 17:22:47,048 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 871 transitions. Word has length 101 [2023-12-16 17:22:47,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:22:47,048 INFO L495 AbstractCegarLoop]: Abstraction has 534 states and 871 transitions. [2023-12-16 17:22:47,049 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) [2023-12-16 17:22:47,049 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 871 transitions. [2023-12-16 17:22:47,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-16 17:22:47,051 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:47,051 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] [2023-12-16 17:22:47,061 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-16 17:22:47,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:47,260 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:47,260 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:47,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1436216337, now seen corresponding path program 1 times [2023-12-16 17:22:47,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:47,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [88311638] [2023-12-16 17:22:47,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:47,261 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 [2023-12-16 17:22:47,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:47,262 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:22:47,272 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-16 17:22:47,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:47,522 INFO L262 TraceCheckSpWp]: Trace formula consists of 739 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:22:47,526 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:47,559 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-16 17:22:47,559 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:47,559 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:47,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [88311638] [2023-12-16 17:22:47,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [88311638] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:47,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:47,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:22:47,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103191507] [2023-12-16 17:22:47,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:47,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:22:47,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:47,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:22:47,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:22:47,562 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) [2023-12-16 17:22:47,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:47,673 INFO L93 Difference]: Finished difference Result 1043 states and 1715 transitions. [2023-12-16 17:22:47,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:22:47,674 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 [2023-12-16 17:22:47,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:47,677 INFO L225 Difference]: With dead ends: 1043 [2023-12-16 17:22:47,677 INFO L226 Difference]: Without dead ends: 534 [2023-12-16 17:22:47,680 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 [2023-12-16 17:22:47,680 INFO L413 NwaCegarLoop]: 848 mSDtfsCounter, 37 mSDsluCounter, 1679 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2023-12-16 17:22:47,680 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] [2023-12-16 17:22:47,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2023-12-16 17:22:47,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 534. [2023-12-16 17:22:47,691 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) [2023-12-16 17:22:47,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 870 transitions. [2023-12-16 17:22:47,694 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 870 transitions. Word has length 102 [2023-12-16 17:22:47,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:22:47,694 INFO L495 AbstractCegarLoop]: Abstraction has 534 states and 870 transitions. [2023-12-16 17:22:47,694 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) [2023-12-16 17:22:47,694 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 870 transitions. [2023-12-16 17:22:47,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-16 17:22:47,697 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:47,697 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] [2023-12-16 17:22:47,710 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-12-16 17:22:47,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:47,911 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:47,911 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:47,911 INFO L85 PathProgramCache]: Analyzing trace with hash 425455316, now seen corresponding path program 1 times [2023-12-16 17:22:47,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:47,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1693119642] [2023-12-16 17:22:47,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:47,912 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:47,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:47,913 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:22:47,916 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-16 17:22:48,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:48,155 INFO L262 TraceCheckSpWp]: Trace formula consists of 739 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:22:48,159 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:48,201 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-16 17:22:48,202 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:48,202 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:48,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1693119642] [2023-12-16 17:22:48,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1693119642] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:48,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:48,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:22:48,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053057392] [2023-12-16 17:22:48,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:48,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:22:48,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:48,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:22:48,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:22:48,204 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) [2023-12-16 17:22:48,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:48,296 INFO L93 Difference]: Finished difference Result 1043 states and 1714 transitions. [2023-12-16 17:22:48,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:22:48,297 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 [2023-12-16 17:22:48,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:48,300 INFO L225 Difference]: With dead ends: 1043 [2023-12-16 17:22:48,300 INFO L226 Difference]: Without dead ends: 534 [2023-12-16 17:22:48,302 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 [2023-12-16 17:22:48,303 INFO L413 NwaCegarLoop]: 848 mSDtfsCounter, 35 mSDsluCounter, 1679 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2023-12-16 17:22:48,303 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] [2023-12-16 17:22:48,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2023-12-16 17:22:48,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 534. [2023-12-16 17:22:48,313 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) [2023-12-16 17:22:48,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 869 transitions. [2023-12-16 17:22:48,316 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 869 transitions. Word has length 103 [2023-12-16 17:22:48,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:22:48,316 INFO L495 AbstractCegarLoop]: Abstraction has 534 states and 869 transitions. [2023-12-16 17:22:48,317 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) [2023-12-16 17:22:48,317 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 869 transitions. [2023-12-16 17:22:48,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-16 17:22:48,319 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:48,319 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] [2023-12-16 17:22:48,332 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-12-16 17:22:48,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:48,528 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:48,528 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:48,528 INFO L85 PathProgramCache]: Analyzing trace with hash 185215570, now seen corresponding path program 1 times [2023-12-16 17:22:48,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:48,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1823553794] [2023-12-16 17:22:48,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:48,529 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:48,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:48,530 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:22:48,535 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-16 17:22:48,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:48,825 INFO L262 TraceCheckSpWp]: Trace formula consists of 740 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 17:22:48,829 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:48,906 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-16 17:22:48,906 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:48,906 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:48,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1823553794] [2023-12-16 17:22:48,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1823553794] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:48,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:48,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 17:22:48,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314468567] [2023-12-16 17:22:48,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:48,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 17:22:48,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:48,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 17:22:48,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:22:48,909 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) [2023-12-16 17:22:49,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:49,100 INFO L93 Difference]: Finished difference Result 1037 states and 1702 transitions. [2023-12-16 17:22:49,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 17:22:49,101 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 3 states have call successors, (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 [2023-12-16 17:22:49,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:49,104 INFO L225 Difference]: With dead ends: 1037 [2023-12-16 17:22:49,104 INFO L226 Difference]: Without dead ends: 534 [2023-12-16 17:22:49,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:22:49,106 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 [2023-12-16 17:22:49,107 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] [2023-12-16 17:22:49,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2023-12-16 17:22:49,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 534. [2023-12-16 17:22:49,117 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) [2023-12-16 17:22:49,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 868 transitions. [2023-12-16 17:22:49,120 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 868 transitions. Word has length 103 [2023-12-16 17:22:49,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:22:49,120 INFO L495 AbstractCegarLoop]: Abstraction has 534 states and 868 transitions. [2023-12-16 17:22:49,120 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) [2023-12-16 17:22:49,121 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 868 transitions. [2023-12-16 17:22:49,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-16 17:22:49,123 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:49,123 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] [2023-12-16 17:22:49,132 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 [2023-12-16 17:22:49,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:49,331 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:49,332 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:49,332 INFO L85 PathProgramCache]: Analyzing trace with hash 564294, now seen corresponding path program 1 times [2023-12-16 17:22:49,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:49,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [587330009] [2023-12-16 17:22:49,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:49,332 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:49,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:49,333 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:22:49,334 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-16 17:22:49,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:49,641 INFO L262 TraceCheckSpWp]: Trace formula consists of 741 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:22:49,645 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:49,767 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-16 17:22:49,767 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:49,767 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:49,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [587330009] [2023-12-16 17:22:49,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [587330009] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:49,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:49,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:22:49,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244314220] [2023-12-16 17:22:49,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:49,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:22:49,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:49,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:22:49,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:22:49,769 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) [2023-12-16 17:22:50,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:50,474 INFO L93 Difference]: Finished difference Result 1034 states and 1723 transitions. [2023-12-16 17:22:50,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:22:50,474 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 [2023-12-16 17:22:50,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:50,478 INFO L225 Difference]: With dead ends: 1034 [2023-12-16 17:22:50,478 INFO L226 Difference]: Without dead ends: 538 [2023-12-16 17:22:50,480 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 [2023-12-16 17:22:50,481 INFO L413 NwaCegarLoop]: 824 mSDtfsCounter, 810 mSDsluCounter, 1281 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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 [2023-12-16 17:22:50,481 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] [2023-12-16 17:22:50,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2023-12-16 17:22:50,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2023-12-16 17:22:50,516 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) [2023-12-16 17:22:50,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 872 transitions. [2023-12-16 17:22:50,519 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 872 transitions. Word has length 104 [2023-12-16 17:22:50,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:22:50,521 INFO L495 AbstractCegarLoop]: Abstraction has 538 states and 872 transitions. [2023-12-16 17:22:50,521 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) [2023-12-16 17:22:50,521 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 872 transitions. [2023-12-16 17:22:50,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-16 17:22:50,524 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:50,524 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] [2023-12-16 17:22:50,534 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2023-12-16 17:22:50,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:50,733 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:50,733 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:50,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1156291832, now seen corresponding path program 1 times [2023-12-16 17:22:50,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:50,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [366935610] [2023-12-16 17:22:50,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:50,734 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:50,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:50,735 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:22:50,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-12-16 17:22:50,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:50,995 INFO L262 TraceCheckSpWp]: Trace formula consists of 743 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:22:50,997 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:51,091 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-16 17:22:51,091 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:51,091 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:51,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [366935610] [2023-12-16 17:22:51,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [366935610] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:51,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:51,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:22:51,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374306296] [2023-12-16 17:22:51,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:51,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:22:51,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:51,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:22:51,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:22:51,093 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) [2023-12-16 17:22:51,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:51,814 INFO L93 Difference]: Finished difference Result 1043 states and 1730 transitions. [2023-12-16 17:22:51,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:22:51,815 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 [2023-12-16 17:22:51,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:51,819 INFO L225 Difference]: With dead ends: 1043 [2023-12-16 17:22:51,819 INFO L226 Difference]: Without dead ends: 543 [2023-12-16 17:22:51,822 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 [2023-12-16 17:22:51,822 INFO L413 NwaCegarLoop]: 825 mSDtfsCounter, 812 mSDsluCounter, 1281 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 17:22:51,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [829 Valid, 2106 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 17:22:51,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2023-12-16 17:22:51,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 543. [2023-12-16 17:22:51,867 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) [2023-12-16 17:22:51,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 877 transitions. [2023-12-16 17:22:51,870 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 877 transitions. Word has length 106 [2023-12-16 17:22:51,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:22:51,871 INFO L495 AbstractCegarLoop]: Abstraction has 543 states and 877 transitions. [2023-12-16 17:22:51,871 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) [2023-12-16 17:22:51,871 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 877 transitions. [2023-12-16 17:22:51,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-16 17:22:51,874 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:51,874 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] [2023-12-16 17:22:51,887 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 [2023-12-16 17:22:52,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:52,083 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:52,083 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:52,083 INFO L85 PathProgramCache]: Analyzing trace with hash 843658950, now seen corresponding path program 1 times [2023-12-16 17:22:52,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:52,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [845664717] [2023-12-16 17:22:52,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:52,084 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:52,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:52,085 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:22:52,086 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-12-16 17:22:52,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:52,332 INFO L262 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:22:52,335 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:52,437 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-16 17:22:52,437 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:52,437 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:52,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [845664717] [2023-12-16 17:22:52,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [845664717] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:52,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:52,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:22:52,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57128827] [2023-12-16 17:22:52,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:52,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:22:52,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:52,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:22:52,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:22:52,439 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) [2023-12-16 17:22:53,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:53,090 INFO L93 Difference]: Finished difference Result 1054 states and 1739 transitions. [2023-12-16 17:22:53,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:22:53,091 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 [2023-12-16 17:22:53,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:53,095 INFO L225 Difference]: With dead ends: 1054 [2023-12-16 17:22:53,095 INFO L226 Difference]: Without dead ends: 549 [2023-12-16 17:22:53,097 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 [2023-12-16 17:22:53,098 INFO L413 NwaCegarLoop]: 825 mSDtfsCounter, 820 mSDsluCounter, 1281 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 17:22:53,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [837 Valid, 2106 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 17:22:53,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2023-12-16 17:22:53,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 549. [2023-12-16 17:22:53,113 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) [2023-12-16 17:22:53,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 883 transitions. [2023-12-16 17:22:53,116 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 883 transitions. Word has length 108 [2023-12-16 17:22:53,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:22:53,116 INFO L495 AbstractCegarLoop]: Abstraction has 549 states and 883 transitions. [2023-12-16 17:22:53,117 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) [2023-12-16 17:22:53,117 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 883 transitions. [2023-12-16 17:22:53,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-16 17:22:53,119 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:53,119 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] [2023-12-16 17:22:53,134 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2023-12-16 17:22:53,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:53,329 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:53,329 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:53,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1348045968, now seen corresponding path program 1 times [2023-12-16 17:22:53,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:53,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [998746639] [2023-12-16 17:22:53,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:53,330 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:53,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:53,332 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:22:53,367 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-12-16 17:22:53,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:53,596 INFO L262 TraceCheckSpWp]: Trace formula consists of 747 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:22:53,599 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:53,702 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-16 17:22:53,702 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:53,702 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:53,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [998746639] [2023-12-16 17:22:53,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [998746639] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:53,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:53,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:22:53,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529593125] [2023-12-16 17:22:53,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:53,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:22:53,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:53,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:22:53,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:22:53,704 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) [2023-12-16 17:22:54,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:54,381 INFO L93 Difference]: Finished difference Result 1067 states and 1750 transitions. [2023-12-16 17:22:54,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:22:54,381 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 [2023-12-16 17:22:54,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:54,385 INFO L225 Difference]: With dead ends: 1067 [2023-12-16 17:22:54,385 INFO L226 Difference]: Without dead ends: 556 [2023-12-16 17:22:54,387 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 [2023-12-16 17:22:54,388 INFO L413 NwaCegarLoop]: 825 mSDtfsCounter, 819 mSDsluCounter, 1281 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 17:22:54,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [836 Valid, 2106 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 17:22:54,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2023-12-16 17:22:54,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2023-12-16 17:22:54,402 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) [2023-12-16 17:22:54,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 890 transitions. [2023-12-16 17:22:54,405 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 890 transitions. Word has length 110 [2023-12-16 17:22:54,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:22:54,405 INFO L495 AbstractCegarLoop]: Abstraction has 556 states and 890 transitions. [2023-12-16 17:22:54,405 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) [2023-12-16 17:22:54,405 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 890 transitions. [2023-12-16 17:22:54,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-16 17:22:54,408 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:54,408 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] [2023-12-16 17:22:54,420 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 [2023-12-16 17:22:54,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:54,621 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:54,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:54,621 INFO L85 PathProgramCache]: Analyzing trace with hash -800193722, now seen corresponding path program 1 times [2023-12-16 17:22:54,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:54,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [370629947] [2023-12-16 17:22:54,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:54,622 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:54,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:54,623 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:22:54,637 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-12-16 17:22:54,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:54,918 INFO L262 TraceCheckSpWp]: Trace formula consists of 749 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-16 17:22:54,922 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:55,179 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-16 17:22:55,180 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:22:55,730 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-16 17:22:55,731 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:55,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [370629947] [2023-12-16 17:22:55,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [370629947] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:22:55,731 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:22:55,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 18 [2023-12-16 17:22:55,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171961147] [2023-12-16 17:22:55,731 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:22:55,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-16 17:22:55,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:55,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-16 17:22:55,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2023-12-16 17:22:55,733 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) [2023-12-16 17:23:02,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:23:02,789 INFO L93 Difference]: Finished difference Result 1724 states and 2816 transitions. [2023-12-16 17:23:02,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-16 17:23:02,789 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 [2023-12-16 17:23:02,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:23:02,796 INFO L225 Difference]: With dead ends: 1724 [2023-12-16 17:23:02,796 INFO L226 Difference]: Without dead ends: 1206 [2023-12-16 17:23:02,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=176, Invalid=694, Unknown=0, NotChecked=0, Total=870 [2023-12-16 17:23:02,799 INFO L413 NwaCegarLoop]: 831 mSDtfsCounter, 4779 mSDsluCounter, 4071 mSDsCounter, 0 mSdLazyCounter, 9383 mSolverCounterSat, 1511 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4863 SdHoareTripleChecker+Valid, 4902 SdHoareTripleChecker+Invalid, 10894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1511 IncrementalHoareTripleChecker+Valid, 9383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2023-12-16 17:23:02,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4863 Valid, 4902 Invalid, 10894 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1511 Valid, 9383 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2023-12-16 17:23:02,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1206 states. [2023-12-16 17:23:02,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1206 to 1185. [2023-12-16 17:23:02,849 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) [2023-12-16 17:23:02,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1185 states to 1185 states and 1934 transitions. [2023-12-16 17:23:02,854 INFO L78 Accepts]: Start accepts. Automaton has 1185 states and 1934 transitions. Word has length 112 [2023-12-16 17:23:02,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:23:02,855 INFO L495 AbstractCegarLoop]: Abstraction has 1185 states and 1934 transitions. [2023-12-16 17:23:02,855 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) [2023-12-16 17:23:02,855 INFO L276 IsEmpty]: Start isEmpty. Operand 1185 states and 1934 transitions. [2023-12-16 17:23:02,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-16 17:23:02,859 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:23:02,859 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] [2023-12-16 17:23:02,867 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2023-12-16 17:23:03,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:23:03,067 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:23:03,067 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:23:03,067 INFO L85 PathProgramCache]: Analyzing trace with hash 230358364, now seen corresponding path program 1 times [2023-12-16 17:23:03,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:23:03,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1276945050] [2023-12-16 17:23:03,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:23:03,068 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:23:03,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:23:03,069 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:23:03,070 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-12-16 17:23:03,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:23:03,308 INFO L262 TraceCheckSpWp]: Trace formula consists of 752 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 17:23:03,311 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:23:03,378 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-16 17:23:03,378 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:23:03,378 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:23:03,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1276945050] [2023-12-16 17:23:03,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1276945050] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:23:03,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:23:03,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 17:23:03,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153433293] [2023-12-16 17:23:03,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:23:03,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 17:23:03,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:23:03,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 17:23:03,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:23:03,380 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) [2023-12-16 17:23:03,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:23:03,553 INFO L93 Difference]: Finished difference Result 1705 states and 2780 transitions. [2023-12-16 17:23:03,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 17:23:03,555 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 [2023-12-16 17:23:03,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:23:03,558 INFO L225 Difference]: With dead ends: 1705 [2023-12-16 17:23:03,558 INFO L226 Difference]: Without dead ends: 548 [2023-12-16 17:23:03,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:23:03,563 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 [2023-12-16 17:23:03,563 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] [2023-12-16 17:23:03,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2023-12-16 17:23:03,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 548. [2023-12-16 17:23:03,582 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) [2023-12-16 17:23:03,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 874 transitions. [2023-12-16 17:23:03,585 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 874 transitions. Word has length 115 [2023-12-16 17:23:03,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:23:03,585 INFO L495 AbstractCegarLoop]: Abstraction has 548 states and 874 transitions. [2023-12-16 17:23:03,585 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) [2023-12-16 17:23:03,585 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 874 transitions. [2023-12-16 17:23:03,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-16 17:23:03,588 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:23:03,588 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] [2023-12-16 17:23:03,627 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 [2023-12-16 17:23:03,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:23:03,793 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:23:03,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:23:03,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1540667706, now seen corresponding path program 1 times [2023-12-16 17:23:03,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:23:03,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [555294520] [2023-12-16 17:23:03,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:23:03,794 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:23:03,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:23:03,795 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:23:03,798 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-12-16 17:23:04,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:23:04,068 INFO L262 TraceCheckSpWp]: Trace formula consists of 764 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-16 17:23:04,071 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:23:04,318 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-16 17:23:04,319 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:23:04,782 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-16 17:23:04,782 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:23:04,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [555294520] [2023-12-16 17:23:04,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [555294520] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:23:04,782 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:23:04,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2023-12-16 17:23:04,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896708564] [2023-12-16 17:23:04,782 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:23:04,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-16 17:23:04,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:23:04,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-16 17:23:04,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2023-12-16 17:23:04,784 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) [2023-12-16 17:23:07,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:23:07,141 INFO L93 Difference]: Finished difference Result 1066 states and 1725 transitions. [2023-12-16 17:23:07,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 17:23:07,142 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 [2023-12-16 17:23:07,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:23:07,145 INFO L225 Difference]: With dead ends: 1066 [2023-12-16 17:23:07,145 INFO L226 Difference]: Without dead ends: 553 [2023-12-16 17:23:07,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2023-12-16 17:23:07,147 INFO L413 NwaCegarLoop]: 341 mSDtfsCounter, 1936 mSDsluCounter, 1331 mSDsCounter, 0 mSdLazyCounter, 3477 mSolverCounterSat, 573 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s 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, 2.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:23:07,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1936 Valid, 1672 Invalid, 4050 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [573 Valid, 3477 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-16 17:23:07,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2023-12-16 17:23:07,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 552. [2023-12-16 17:23:07,170 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) [2023-12-16 17:23:07,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 882 transitions. [2023-12-16 17:23:07,173 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 882 transitions. Word has length 121 [2023-12-16 17:23:07,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:23:07,173 INFO L495 AbstractCegarLoop]: Abstraction has 552 states and 882 transitions. [2023-12-16 17:23:07,173 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) [2023-12-16 17:23:07,173 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 882 transitions. [2023-12-16 17:23:07,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-12-16 17:23:07,175 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:23:07,175 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] [2023-12-16 17:23:07,188 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2023-12-16 17:23:07,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:23:07,386 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:23:07,387 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:23:07,387 INFO L85 PathProgramCache]: Analyzing trace with hash -302265619, now seen corresponding path program 1 times [2023-12-16 17:23:07,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:23:07,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2144663878] [2023-12-16 17:23:07,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:23:07,387 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:23:07,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:23:07,388 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:23:07,389 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-16 17:23:07,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:23:07,693 INFO L262 TraceCheckSpWp]: Trace formula consists of 768 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 17:23:07,696 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:23:08,121 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-16 17:23:08,121 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:23:08,122 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:23:08,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2144663878] [2023-12-16 17:23:08,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2144663878] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:23:08,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:23:08,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:23:08,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277915416] [2023-12-16 17:23:08,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:23:08,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 17:23:08,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:23:08,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 17:23:08,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:23:08,124 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) [2023-12-16 17:23:11,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:23:11,976 INFO L93 Difference]: Finished difference Result 2193 states and 3594 transitions. [2023-12-16 17:23:11,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 17:23:11,977 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 [2023-12-16 17:23:11,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:23:11,989 INFO L225 Difference]: With dead ends: 2193 [2023-12-16 17:23:11,989 INFO L226 Difference]: Without dead ends: 1676 [2023-12-16 17:23:11,991 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 [2023-12-16 17:23:11,992 INFO L413 NwaCegarLoop]: 543 mSDtfsCounter, 3817 mSDsluCounter, 1376 mSDsCounter, 0 mSdLazyCounter, 4809 mSolverCounterSat, 728 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s 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, 3.6s IncrementalHoareTripleChecker+Time [2023-12-16 17:23:11,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3995 Valid, 1919 Invalid, 5537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [728 Valid, 4809 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-12-16 17:23:11,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1676 states. [2023-12-16 17:23:12,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1676 to 1475. [2023-12-16 17:23:12,113 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) [2023-12-16 17:23:12,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1475 states to 1475 states and 2410 transitions. [2023-12-16 17:23:12,120 INFO L78 Accepts]: Start accepts. Automaton has 1475 states and 2410 transitions. Word has length 123 [2023-12-16 17:23:12,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:23:12,120 INFO L495 AbstractCegarLoop]: Abstraction has 1475 states and 2410 transitions. [2023-12-16 17:23:12,121 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) [2023-12-16 17:23:12,121 INFO L276 IsEmpty]: Start isEmpty. Operand 1475 states and 2410 transitions. [2023-12-16 17:23:12,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-16 17:23:12,124 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:23:12,124 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] [2023-12-16 17:23:12,139 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2023-12-16 17:23:12,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:23:12,334 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:23:12,334 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:23:12,335 INFO L85 PathProgramCache]: Analyzing trace with hash -364273281, now seen corresponding path program 1 times [2023-12-16 17:23:12,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:23:12,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [504257628] [2023-12-16 17:23:12,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:23:12,335 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:23:12,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:23:12,336 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:23:12,337 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-12-16 17:23:12,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:23:12,598 INFO L262 TraceCheckSpWp]: Trace formula consists of 765 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 17:23:12,602 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:23:12,732 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-16 17:23:12,733 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:23:13,034 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-16 17:23:13,034 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:23:13,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [504257628] [2023-12-16 17:23:13,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [504257628] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:23:13,035 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:23:13,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2023-12-16 17:23:13,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481832123] [2023-12-16 17:23:13,035 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:23:13,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-16 17:23:13,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:23:13,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-16 17:23:13,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:23:13,036 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) [2023-12-16 17:23:17,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:23:17,534 INFO L93 Difference]: Finished difference Result 5796 states and 9616 transitions. [2023-12-16 17:23:17,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-16 17:23:17,537 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 [2023-12-16 17:23:17,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:23:17,559 INFO L225 Difference]: With dead ends: 5796 [2023-12-16 17:23:17,559 INFO L226 Difference]: Without dead ends: 4356 [2023-12-16 17:23:17,567 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 [2023-12-16 17:23:17,568 INFO L413 NwaCegarLoop]: 555 mSDtfsCounter, 5705 mSDsluCounter, 1771 mSDsCounter, 0 mSdLazyCounter, 5327 mSolverCounterSat, 1709 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s 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, 4.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:23:17,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5797 Valid, 2326 Invalid, 7036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1709 Valid, 5327 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-12-16 17:23:17,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4356 states. [2023-12-16 17:23:17,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4356 to 4232. [2023-12-16 17:23:17,884 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) [2023-12-16 17:23:17,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4232 states to 4232 states and 6912 transitions. [2023-12-16 17:23:17,901 INFO L78 Accepts]: Start accepts. Automaton has 4232 states and 6912 transitions. Word has length 122 [2023-12-16 17:23:17,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:23:17,901 INFO L495 AbstractCegarLoop]: Abstraction has 4232 states and 6912 transitions. [2023-12-16 17:23:17,901 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) [2023-12-16 17:23:17,901 INFO L276 IsEmpty]: Start isEmpty. Operand 4232 states and 6912 transitions. [2023-12-16 17:23:17,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-16 17:23:17,903 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:23:17,904 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] [2023-12-16 17:23:17,913 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2023-12-16 17:23:18,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:23:18,113 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:23:18,113 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:23:18,113 INFO L85 PathProgramCache]: Analyzing trace with hash 610860556, now seen corresponding path program 1 times [2023-12-16 17:23:18,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:23:18,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [90561987] [2023-12-16 17:23:18,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:23:18,114 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:23:18,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:23:18,115 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:23:18,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2023-12-16 17:23:18,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:23:18,408 INFO L262 TraceCheckSpWp]: Trace formula consists of 776 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-16 17:23:18,411 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:23:18,607 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-16 17:23:18,607 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:23:18,607 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:23:18,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [90561987] [2023-12-16 17:23:18,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [90561987] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:23:18,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:23:18,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 17:23:18,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096958051] [2023-12-16 17:23:18,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:23:18,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 17:23:18,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:23:18,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 17:23:18,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-12-16 17:23:18,608 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) [2023-12-16 17:23:23,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:23:23,529 INFO L93 Difference]: Finished difference Result 12007 states and 19934 transitions. [2023-12-16 17:23:23,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-16 17:23:23,531 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 [2023-12-16 17:23:23,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:23:23,574 INFO L225 Difference]: With dead ends: 12007 [2023-12-16 17:23:23,574 INFO L226 Difference]: Without dead ends: 7810 [2023-12-16 17:23:23,592 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 [2023-12-16 17:23:23,593 INFO L413 NwaCegarLoop]: 616 mSDtfsCounter, 3137 mSDsluCounter, 1846 mSDsCounter, 0 mSdLazyCounter, 6696 mSolverCounterSat, 746 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s 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, 4.3s IncrementalHoareTripleChecker+Time [2023-12-16 17:23:23,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3254 Valid, 2462 Invalid, 7442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [746 Valid, 6696 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-12-16 17:23:23,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7810 states. [2023-12-16 17:23:24,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7810 to 7598. [2023-12-16 17:23:24,173 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) [2023-12-16 17:23:24,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7598 states to 7598 states and 12464 transitions. [2023-12-16 17:23:24,217 INFO L78 Accepts]: Start accepts. Automaton has 7598 states and 12464 transitions. Word has length 128 [2023-12-16 17:23:24,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:23:24,217 INFO L495 AbstractCegarLoop]: Abstraction has 7598 states and 12464 transitions. [2023-12-16 17:23:24,217 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) [2023-12-16 17:23:24,217 INFO L276 IsEmpty]: Start isEmpty. Operand 7598 states and 12464 transitions. [2023-12-16 17:23:24,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-16 17:23:24,220 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:23:24,220 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] [2023-12-16 17:23:24,302 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2023-12-16 17:23:24,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:23:24,502 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:23:24,503 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:23:24,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1722532082, now seen corresponding path program 1 times [2023-12-16 17:23:24,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:23:24,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [256389700] [2023-12-16 17:23:24,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:23:24,504 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 [2023-12-16 17:23:24,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:23:24,505 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:23:24,544 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2023-12-16 17:23:24,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:23:24,797 INFO L262 TraceCheckSpWp]: Trace formula consists of 776 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-16 17:23:24,800 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:23:25,004 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-16 17:23:25,005 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:23:25,005 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:23:25,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [256389700] [2023-12-16 17:23:25,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [256389700] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:23:25,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:23:25,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-16 17:23:25,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881533849] [2023-12-16 17:23:25,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:23:25,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-16 17:23:25,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:23:25,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-16 17:23:25,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:23:25,007 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) [2023-12-16 17:23:27,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:23:27,996 INFO L93 Difference]: Finished difference Result 13428 states and 22004 transitions. [2023-12-16 17:23:27,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 17:23:27,997 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 [2023-12-16 17:23:27,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:23:28,041 INFO L225 Difference]: With dead ends: 13428 [2023-12-16 17:23:28,042 INFO L226 Difference]: Without dead ends: 7568 [2023-12-16 17:23:28,063 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 [2023-12-16 17:23:28,064 INFO L413 NwaCegarLoop]: 341 mSDtfsCounter, 1298 mSDsluCounter, 1858 mSDsCounter, 0 mSdLazyCounter, 4584 mSolverCounterSat, 375 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s 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, 2.4s IncrementalHoareTripleChecker+Time [2023-12-16 17:23:28,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1298 Valid, 2199 Invalid, 4959 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [375 Valid, 4584 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-16 17:23:28,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7568 states. [2023-12-16 17:23:28,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7568 to 7568. [2023-12-16 17:23:28,642 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) [2023-12-16 17:23:28,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7568 states to 7568 states and 12404 transitions. [2023-12-16 17:23:28,687 INFO L78 Accepts]: Start accepts. Automaton has 7568 states and 12404 transitions. Word has length 128 [2023-12-16 17:23:28,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:23:28,688 INFO L495 AbstractCegarLoop]: Abstraction has 7568 states and 12404 transitions. [2023-12-16 17:23:28,688 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) [2023-12-16 17:23:28,688 INFO L276 IsEmpty]: Start isEmpty. Operand 7568 states and 12404 transitions. [2023-12-16 17:23:28,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-16 17:23:28,691 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:23:28,691 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] [2023-12-16 17:23:28,702 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2023-12-16 17:23:28,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:23:28,902 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:23:28,903 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:23:28,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1382922134, now seen corresponding path program 1 times [2023-12-16 17:23:28,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:23:28,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [635213130] [2023-12-16 17:23:28,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:23:28,904 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:23:28,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:23:28,905 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:23:28,906 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2023-12-16 17:23:29,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:23:29,188 INFO L262 TraceCheckSpWp]: Trace formula consists of 799 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:23:29,191 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:23:29,321 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-16 17:23:29,321 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:23:29,322 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:23:29,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [635213130] [2023-12-16 17:23:29,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [635213130] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:23:29,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:23:29,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 17:23:29,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949721193] [2023-12-16 17:23:29,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:23:29,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 17:23:29,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:23:29,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 17:23:29,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:23:29,323 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) [2023-12-16 17:23:32,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:23:32,987 INFO L93 Difference]: Finished difference Result 22978 states and 38549 transitions. [2023-12-16 17:23:32,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:23:32,989 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 [2023-12-16 17:23:32,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:23:33,081 INFO L225 Difference]: With dead ends: 22978 [2023-12-16 17:23:33,081 INFO L226 Difference]: Without dead ends: 15448 [2023-12-16 17:23:33,117 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 [2023-12-16 17:23:33,118 INFO L413 NwaCegarLoop]: 612 mSDtfsCounter, 2051 mSDsluCounter, 881 mSDsCounter, 0 mSdLazyCounter, 3312 mSolverCounterSat, 477 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s 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, 2.6s IncrementalHoareTripleChecker+Time [2023-12-16 17:23:33,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2167 Valid, 1493 Invalid, 3789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [477 Valid, 3312 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-16 17:23:33,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15448 states. Received shutdown request... [2023-12-16 17:23:33,276 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 17:23:33,290 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2023-12-16 17:23:33,325 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 17:23:33,325 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 17:23:33,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:23:33,488 WARN L619 AbstractCegarLoop]: Verification canceled: while executing MinimizeSevpa. [2023-12-16 17:23:33,491 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:23:33,493 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 17:23:33,494 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 05:23:33 BoogieIcfgContainer [2023-12-16 17:23:33,494 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 17:23:33,495 INFO L158 Benchmark]: Toolchain (without parser) took 58615.17ms. Allocated memory was 187.7MB in the beginning and 763.4MB in the end (delta: 575.7MB). Free memory was 139.3MB in the beginning and 242.7MB in the end (delta: -103.5MB). Peak memory consumption was 511.8MB. Max. memory is 8.0GB. [2023-12-16 17:23:33,495 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 187.7MB. Free memory is still 144.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 17:23:33,495 INFO L158 Benchmark]: CACSL2BoogieTranslator took 853.47ms. Allocated memory is still 187.7MB. Free memory was 138.9MB in the beginning and 135.9MB in the end (delta: 3.0MB). Peak memory consumption was 44.6MB. Max. memory is 8.0GB. [2023-12-16 17:23:33,495 INFO L158 Benchmark]: Boogie Procedure Inliner took 98.31ms. Allocated memory is still 187.7MB. Free memory was 135.9MB in the beginning and 130.7MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 17:23:33,495 INFO L158 Benchmark]: Boogie Preprocessor took 94.32ms. Allocated memory is still 187.7MB. Free memory was 130.7MB in the beginning and 121.8MB in the end (delta: 8.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2023-12-16 17:23:33,496 INFO L158 Benchmark]: RCFGBuilder took 1614.61ms. Allocated memory was 187.7MB in the beginning and 251.7MB in the end (delta: 64.0MB). Free memory was 121.8MB in the beginning and 146.5MB in the end (delta: -24.7MB). Peak memory consumption was 74.4MB. Max. memory is 8.0GB. [2023-12-16 17:23:33,496 INFO L158 Benchmark]: TraceAbstraction took 55948.31ms. Allocated memory was 251.7MB in the beginning and 763.4MB in the end (delta: 511.7MB). Free memory was 145.4MB in the beginning and 242.7MB in the end (delta: -97.3MB). Peak memory consumption was 453.2MB. Max. memory is 8.0GB. [2023-12-16 17:23:33,497 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 187.7MB. Free memory is still 144.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 853.47ms. Allocated memory is still 187.7MB. Free memory was 138.9MB in the beginning and 135.9MB in the end (delta: 3.0MB). Peak memory consumption was 44.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 98.31ms. Allocated memory is still 187.7MB. Free memory was 135.9MB in the beginning and 130.7MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 94.32ms. Allocated memory is still 187.7MB. Free memory was 130.7MB in the beginning and 121.8MB in the end (delta: 8.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * RCFGBuilder took 1614.61ms. Allocated memory was 187.7MB in the beginning and 251.7MB in the end (delta: 64.0MB). Free memory was 121.8MB in the beginning and 146.5MB in the end (delta: -24.7MB). Peak memory consumption was 74.4MB. Max. memory is 8.0GB. * TraceAbstraction took 55948.31ms. Allocated memory was 251.7MB in the beginning and 763.4MB in the end (delta: 511.7MB). Free memory was 145.4MB in the beginning and 242.7MB in the end (delta: -97.3MB). Peak memory consumption was 453.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 48]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [48] - GenericResultAtLocation [Line: 235]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [235] - GenericResultAtLocation [Line: 273]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [273] - GenericResultAtLocation [Line: 941]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [941] - GenericResultAtLocation [Line: 1307]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1307] - GenericResultAtLocation [Line: 1665]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1665] - GenericResultAtLocation [Line: 1674]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [1674] - GenericResultAtLocation [Line: 1766]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1766] - GenericResultAtLocation [Line: 1778]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [1778] - GenericResultAtLocation [Line: 1898]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1898] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 1670]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1670). Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data CFG has 27 procedures, 565 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 55.9s, OverallIterations: 28, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 35.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 27327 SdHoareTripleChecker+Valid, 30.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 26667 mSDsluCounter, 80089 SdHoareTripleChecker+Invalid, 25.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 57998 mSDsCounter, 6180 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 41189 IncrementalHoareTripleChecker+Invalid, 47369 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6180 mSolverCounterUnsat, 22091 mSDtfsCounter, 41189 mSolverCounterSat, 0.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3384 GetRequests, 3194 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7598occurred in iteration=26, InterpolantAutomatonStates: 185, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.4s AutomataMinimizationTime, 28 MinimizatonAttempts, 561 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.3s SsaConstructionTime, 4.3s SatisfiabilityAnalysisTime, 4.5s InterpolantComputationTime, 2974 NumberOfCodeBlocks, 2974 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 3298 ConstructedInterpolants, 0 QuantifiedInterpolants, 7241 SizeOfPredicates, 42 NumberOfNonLiveVariables, 20876 ConjunctsInSsa, 166 ConjunctsInUnsatCore, 31 InterpolantComputations, 25 PerfectInterpolantSequences, 494/514 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown