/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/product-lines/elevator_spec3_product31.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 05:35:20,468 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 05:35:20,547 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-25 05:35:20,551 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 05:35:20,551 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 05:35:20,583 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 05:35:20,584 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 05:35:20,584 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 05:35:20,584 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 05:35:20,585 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 05:35:20,585 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 05:35:20,585 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 05:35:20,585 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 05:35:20,586 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 05:35:20,586 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 05:35:20,586 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 05:35:20,586 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 05:35:20,587 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 05:35:20,587 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 05:35:20,587 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 05:35:20,587 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 05:35:20,590 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 05:35:20,591 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 05:35:20,591 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 05:35:20,594 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 05:35:20,594 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 05:35:20,594 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 05:35:20,594 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 05:35:20,594 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 05:35:20,594 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 05:35:20,595 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 05:35:20,595 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 05:35:20,595 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 05:35:20,596 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 05:35:20,596 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:35:20,596 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 05:35:20,596 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 05:35:20,596 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 05:35:20,596 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 05:35:20,596 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 05:35:20,596 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 05:35:20,597 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 05:35:20,597 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 05:35:20,597 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 05:35:20,598 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 05:35:20,598 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 05:35:20,598 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 05:35:20,798 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 05:35:20,829 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 05:35:20,831 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 05:35:20,832 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 05:35:20,832 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 05:35:20,834 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec3_product31.cil.c [2023-12-25 05:35:21,927 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 05:35:22,207 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 05:35:22,207 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product31.cil.c [2023-12-25 05:35:22,224 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b57846713/df18b64c0d9e4fab80363e76564eac3e/FLAGc7c7b858d [2023-12-25 05:35:22,234 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b57846713/df18b64c0d9e4fab80363e76564eac3e [2023-12-25 05:35:22,235 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 05:35:22,236 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 05:35:22,237 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 05:35:22,237 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 05:35:22,242 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 05:35:22,243 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:35:22" (1/1) ... [2023-12-25 05:35:22,244 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@402c4f30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:35:22, skipping insertion in model container [2023-12-25 05:35:22,244 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:35:22" (1/1) ... [2023-12-25 05:35:22,304 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:35:22,445 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product31.cil.c[1545,1558] [2023-12-25 05:35:22,775 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:35:22,797 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-25 05:35:22,814 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:35:22,822 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product31.cil.c[1545,1558] [2023-12-25 05:35:22,888 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:35:22,897 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 05:35:22,904 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [48] [2023-12-25 05:35:22,905 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [57] [2023-12-25 05:35:22,905 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [95] [2023-12-25 05:35:22,905 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [287] [2023-12-25 05:35:22,906 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [653] [2023-12-25 05:35:22,906 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [752] [2023-12-25 05:35:22,907 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [770] [2023-12-25 05:35:22,907 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [1437] [2023-12-25 05:35:22,907 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1557] [2023-12-25 05:35:22,907 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [3170] [2023-12-25 05:35:22,909 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product31.cil.c[1545,1558] [2023-12-25 05:35:22,995 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:35:23,021 INFO L206 MainTranslator]: Completed translation [2023-12-25 05:35:23,021 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:35:23 WrapperNode [2023-12-25 05:35:23,022 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 05:35:23,023 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 05:35:23,023 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 05:35:23,023 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 05:35:23,028 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:35:23" (1/1) ... [2023-12-25 05:35:23,059 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:35:23" (1/1) ... [2023-12-25 05:35:23,118 INFO L138 Inliner]: procedures = 97, calls = 355, calls flagged for inlining = 27, calls inlined = 24, statements flattened = 923 [2023-12-25 05:35:23,118 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 05:35:23,119 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 05:35:23,119 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 05:35:23,119 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 05:35:23,128 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:35:23" (1/1) ... [2023-12-25 05:35:23,128 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:35:23" (1/1) ... [2023-12-25 05:35:23,133 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:35:23" (1/1) ... [2023-12-25 05:35:23,169 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2023-12-25 05:35:23,170 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:35:23" (1/1) ... [2023-12-25 05:35:23,170 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:35:23" (1/1) ... [2023-12-25 05:35:23,185 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:35:23" (1/1) ... [2023-12-25 05:35:23,195 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:35:23" (1/1) ... [2023-12-25 05:35:23,201 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:35:23" (1/1) ... [2023-12-25 05:35:23,205 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:35:23" (1/1) ... [2023-12-25 05:35:23,213 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 05:35:23,214 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 05:35:23,214 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 05:35:23,214 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 05:35:23,215 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:35:23" (1/1) ... [2023-12-25 05:35:23,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:35:23,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 05:35:23,269 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-25 05:35:23,277 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-25 05:35:23,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 05:35:23,299 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2023-12-25 05:35:23,299 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2023-12-25 05:35:23,299 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2023-12-25 05:35:23,299 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2023-12-25 05:35:23,299 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-12-25 05:35:23,299 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-12-25 05:35:23,299 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-12-25 05:35:23,300 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-12-25 05:35:23,300 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2023-12-25 05:35:23,300 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2023-12-25 05:35:23,302 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-12-25 05:35:23,302 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-12-25 05:35:23,303 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2023-12-25 05:35:23,303 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2023-12-25 05:35:23,303 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-12-25 05:35:23,303 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-12-25 05:35:23,303 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2023-12-25 05:35:23,303 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2023-12-25 05:35:23,303 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-25 05:35:23,303 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-25 05:35:23,303 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-25 05:35:23,303 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-25 05:35:23,303 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-12-25 05:35:23,303 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-12-25 05:35:23,303 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-12-25 05:35:23,304 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-12-25 05:35:23,304 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-12-25 05:35:23,304 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-12-25 05:35:23,304 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-12-25 05:35:23,304 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-12-25 05:35:23,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 05:35:23,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-25 05:35:23,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-25 05:35:23,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-25 05:35:23,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-12-25 05:35:23,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2023-12-25 05:35:23,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2023-12-25 05:35:23,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2023-12-25 05:35:23,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2023-12-25 05:35:23,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2023-12-25 05:35:23,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2023-12-25 05:35:23,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2023-12-25 05:35:23,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12 [2023-12-25 05:35:23,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#13 [2023-12-25 05:35:23,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#14 [2023-12-25 05:35:23,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#15 [2023-12-25 05:35:23,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#16 [2023-12-25 05:35:23,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#17 [2023-12-25 05:35:23,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#18 [2023-12-25 05:35:23,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#19 [2023-12-25 05:35:23,305 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2023-12-25 05:35:23,306 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2023-12-25 05:35:23,306 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2023-12-25 05:35:23,306 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2023-12-25 05:35:23,306 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-12-25 05:35:23,306 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-12-25 05:35:23,307 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2023-12-25 05:35:23,307 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2023-12-25 05:35:23,307 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-12-25 05:35:23,307 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-12-25 05:35:23,308 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-12-25 05:35:23,308 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-12-25 05:35:23,308 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-12-25 05:35:23,308 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-12-25 05:35:23,308 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-12-25 05:35:23,309 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-12-25 05:35:23,309 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2023-12-25 05:35:23,309 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2023-12-25 05:35:23,309 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-12-25 05:35:23,309 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-12-25 05:35:23,309 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-12-25 05:35:23,309 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-12-25 05:35:23,309 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-12-25 05:35:23,309 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-12-25 05:35:23,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 05:35:23,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 05:35:23,310 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-12-25 05:35:23,310 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-12-25 05:35:23,492 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 05:35:23,494 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 05:35:24,485 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 05:35:24,548 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 05:35:24,548 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-25 05:35:24,549 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:35:24 BoogieIcfgContainer [2023-12-25 05:35:24,549 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 05:35:24,550 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 05:35:24,550 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 05:35:24,553 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 05:35:24,553 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 05:35:22" (1/3) ... [2023-12-25 05:35:24,553 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77206608 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:35:24, skipping insertion in model container [2023-12-25 05:35:24,553 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:35:23" (2/3) ... [2023-12-25 05:35:24,554 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77206608 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:35:24, skipping insertion in model container [2023-12-25 05:35:24,554 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:35:24" (3/3) ... [2023-12-25 05:35:24,555 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product31.cil.c [2023-12-25 05:35:24,568 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 05:35:24,568 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 05:35:24,610 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 05:35:24,615 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;@a00bc0f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 05:35:24,615 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 05:35:24,622 INFO L276 IsEmpty]: Start isEmpty. Operand has 599 states, 456 states have (on average 1.6951754385964912) internal successors, (773), 474 states have internal predecessors, (773), 113 states have call successors, (113), 28 states have call predecessors, (113), 28 states have return successors, (113), 110 states have call predecessors, (113), 113 states have call successors, (113) [2023-12-25 05:35:24,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-25 05:35:24,644 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:24,645 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] [2023-12-25 05:35:24,646 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:24,649 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:24,650 INFO L85 PathProgramCache]: Analyzing trace with hash 221988997, now seen corresponding path program 1 times [2023-12-25 05:35:24,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:24,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2094743855] [2023-12-25 05:35:24,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:24,661 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:24,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:24,663 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:35:24,671 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-25 05:35:25,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:25,016 INFO L262 TraceCheckSpWp]: Trace formula consists of 830 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:35:25,023 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:25,090 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-25 05:35:25,091 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:25,091 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:25,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2094743855] [2023-12-25 05:35:25,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2094743855] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:25,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:25,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:35:25,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833668594] [2023-12-25 05:35:25,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:25,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:35:25,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:25,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:35:25,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:35:25,120 INFO L87 Difference]: Start difference. First operand has 599 states, 456 states have (on average 1.6951754385964912) internal successors, (773), 474 states have internal predecessors, (773), 113 states have call successors, (113), 28 states have call predecessors, (113), 28 states have return successors, (113), 110 states have call predecessors, (113), 113 states have call successors, (113) Second operand has 7 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-25 05:35:25,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:25,383 INFO L93 Difference]: Finished difference Result 1201 states and 2016 transitions. [2023-12-25 05:35:25,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:35:25,385 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 101 [2023-12-25 05:35:25,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:25,396 INFO L225 Difference]: With dead ends: 1201 [2023-12-25 05:35:25,396 INFO L226 Difference]: Without dead ends: 607 [2023-12-25 05:35:25,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:35:25,404 INFO L413 NwaCegarLoop]: 965 mSDtfsCounter, 115 mSDsluCounter, 4731 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 5696 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:25,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 5696 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:35:25,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2023-12-25 05:35:25,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 605. [2023-12-25 05:35:25,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 605 states, 462 states have (on average 1.6818181818181819) internal successors, (777), 480 states have internal predecessors, (777), 114 states have call successors, (114), 28 states have call predecessors, (114), 28 states have return successors, (113), 109 states have call predecessors, (113), 111 states have call successors, (113) [2023-12-25 05:35:25,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 1004 transitions. [2023-12-25 05:35:25,482 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 1004 transitions. Word has length 101 [2023-12-25 05:35:25,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:25,482 INFO L495 AbstractCegarLoop]: Abstraction has 605 states and 1004 transitions. [2023-12-25 05:35:25,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-25 05:35:25,482 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 1004 transitions. [2023-12-25 05:35:25,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-25 05:35:25,488 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:25,488 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] [2023-12-25 05:35:25,496 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-25 05:35:25,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:25,697 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:25,697 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:25,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1550928388, now seen corresponding path program 1 times [2023-12-25 05:35:25,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:25,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1131440477] [2023-12-25 05:35:25,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:25,698 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:25,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:25,699 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:35:25,719 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-25 05:35:26,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:26,021 INFO L262 TraceCheckSpWp]: Trace formula consists of 831 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:35:26,025 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:26,067 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-25 05:35:26,067 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:26,067 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:26,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1131440477] [2023-12-25 05:35:26,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1131440477] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:26,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:26,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:35:26,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015124270] [2023-12-25 05:35:26,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:26,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:35:26,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:26,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:35:26,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:35:26,070 INFO L87 Difference]: Start difference. First operand 605 states and 1004 transitions. Second operand has 7 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-25 05:35:26,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:26,271 INFO L93 Difference]: Finished difference Result 1210 states and 2016 transitions. [2023-12-25 05:35:26,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:35:26,272 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 102 [2023-12-25 05:35:26,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:26,275 INFO L225 Difference]: With dead ends: 1210 [2023-12-25 05:35:26,275 INFO L226 Difference]: Without dead ends: 615 [2023-12-25 05:35:26,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:35:26,278 INFO L413 NwaCegarLoop]: 968 mSDtfsCounter, 102 mSDsluCounter, 4726 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 5694 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:26,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 5694 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:35:26,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2023-12-25 05:35:26,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 605. [2023-12-25 05:35:26,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 605 states, 462 states have (on average 1.6818181818181819) internal successors, (777), 480 states have internal predecessors, (777), 114 states have call successors, (114), 28 states have call predecessors, (114), 28 states have return successors, (113), 109 states have call predecessors, (113), 111 states have call successors, (113) [2023-12-25 05:35:26,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 1004 transitions. [2023-12-25 05:35:26,307 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 1004 transitions. Word has length 102 [2023-12-25 05:35:26,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:26,308 INFO L495 AbstractCegarLoop]: Abstraction has 605 states and 1004 transitions. [2023-12-25 05:35:26,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-25 05:35:26,308 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 1004 transitions. [2023-12-25 05:35:26,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-25 05:35:26,311 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:26,311 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] [2023-12-25 05:35:26,322 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-25 05:35:26,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:26,520 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:26,520 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:26,520 INFO L85 PathProgramCache]: Analyzing trace with hash 121256784, now seen corresponding path program 1 times [2023-12-25 05:35:26,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:26,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [620358710] [2023-12-25 05:35:26,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:26,521 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:26,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:26,526 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:35:26,528 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-25 05:35:26,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:26,853 INFO L262 TraceCheckSpWp]: Trace formula consists of 831 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:35:26,857 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:26,887 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-25 05:35:26,887 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:26,887 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:26,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [620358710] [2023-12-25 05:35:26,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [620358710] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:26,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:26,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:35:26,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791954189] [2023-12-25 05:35:26,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:26,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:35:26,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:26,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:35:26,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:35:26,889 INFO L87 Difference]: Start difference. First operand 605 states and 1004 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, (17), 2 states have call predecessors, (17), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-25 05:35:27,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:27,015 INFO L93 Difference]: Finished difference Result 1198 states and 1995 transitions. [2023-12-25 05:35:27,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:35:27,016 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, (17), 2 states have call predecessors, (17), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 102 [2023-12-25 05:35:27,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:27,020 INFO L225 Difference]: With dead ends: 1198 [2023-12-25 05:35:27,020 INFO L226 Difference]: Without dead ends: 576 [2023-12-25 05:35:27,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:35:27,025 INFO L413 NwaCegarLoop]: 959 mSDtfsCounter, 22 mSDsluCounter, 1911 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 2870 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:27,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 2870 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:35:27,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2023-12-25 05:35:27,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 576. [2023-12-25 05:35:27,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 436 states have (on average 1.665137614678899) internal successors, (726), 452 states have internal predecessors, (726), 113 states have call successors, (113), 28 states have call predecessors, (113), 26 states have return successors, (110), 108 states have call predecessors, (110), 110 states have call successors, (110) [2023-12-25 05:35:27,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 949 transitions. [2023-12-25 05:35:27,058 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 949 transitions. Word has length 102 [2023-12-25 05:35:27,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:27,058 INFO L495 AbstractCegarLoop]: Abstraction has 576 states and 949 transitions. [2023-12-25 05:35:27,058 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, (17), 2 states have call predecessors, (17), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-25 05:35:27,058 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 949 transitions. [2023-12-25 05:35:27,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-25 05:35:27,062 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:27,062 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] [2023-12-25 05:35:27,085 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-12-25 05:35:27,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:27,270 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:27,273 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:27,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1756958601, now seen corresponding path program 1 times [2023-12-25 05:35:27,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:27,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1760747066] [2023-12-25 05:35:27,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:27,274 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:27,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:27,289 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:35:27,327 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-25 05:35:27,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:27,592 INFO L262 TraceCheckSpWp]: Trace formula consists of 832 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:35:27,602 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:27,666 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-25 05:35:27,666 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:27,667 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:27,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1760747066] [2023-12-25 05:35:27,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1760747066] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:27,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:27,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:35:27,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777451495] [2023-12-25 05:35:27,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:27,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:35:27,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:27,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:35:27,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:35:27,669 INFO L87 Difference]: Start difference. First operand 576 states and 949 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, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-25 05:35:27,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:27,816 INFO L93 Difference]: Finished difference Result 1150 states and 1902 transitions. [2023-12-25 05:35:27,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:35:27,817 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, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 103 [2023-12-25 05:35:27,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:27,820 INFO L225 Difference]: With dead ends: 1150 [2023-12-25 05:35:27,820 INFO L226 Difference]: Without dead ends: 570 [2023-12-25 05:35:27,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:35:27,824 INFO L413 NwaCegarLoop]: 923 mSDtfsCounter, 87 mSDsluCounter, 4548 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 5471 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:27,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 5471 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:35:27,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2023-12-25 05:35:27,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 570. [2023-12-25 05:35:27,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 430 states have (on average 1.658139534883721) internal successors, (713), 446 states have internal predecessors, (713), 113 states have call successors, (113), 28 states have call predecessors, (113), 26 states have return successors, (110), 108 states have call predecessors, (110), 110 states have call successors, (110) [2023-12-25 05:35:27,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 936 transitions. [2023-12-25 05:35:27,841 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 936 transitions. Word has length 103 [2023-12-25 05:35:27,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:27,841 INFO L495 AbstractCegarLoop]: Abstraction has 570 states and 936 transitions. [2023-12-25 05:35:27,842 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, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-25 05:35:27,842 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 936 transitions. [2023-12-25 05:35:27,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-25 05:35:27,844 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:27,844 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] [2023-12-25 05:35:27,852 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 (5)] Ended with exit code 0 [2023-12-25 05:35:28,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:28,052 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:28,052 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:28,052 INFO L85 PathProgramCache]: Analyzing trace with hash -638976064, now seen corresponding path program 1 times [2023-12-25 05:35:28,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:28,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1290042981] [2023-12-25 05:35:28,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:28,053 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:28,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:28,055 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:35:28,056 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-25 05:35:28,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:28,340 INFO L262 TraceCheckSpWp]: Trace formula consists of 833 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:35:28,343 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:28,383 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-25 05:35:28,383 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:28,383 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:28,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1290042981] [2023-12-25 05:35:28,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1290042981] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:28,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:28,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:35:28,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452089156] [2023-12-25 05:35:28,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:28,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:35:28,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:28,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:35:28,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:35:28,385 INFO L87 Difference]: Start difference. First operand 570 states and 936 transitions. Second operand has 7 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-25 05:35:28,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:28,512 INFO L93 Difference]: Finished difference Result 1138 states and 1876 transitions. [2023-12-25 05:35:28,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:35:28,512 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 104 [2023-12-25 05:35:28,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:28,515 INFO L225 Difference]: With dead ends: 1138 [2023-12-25 05:35:28,515 INFO L226 Difference]: Without dead ends: 564 [2023-12-25 05:35:28,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:35:28,518 INFO L413 NwaCegarLoop]: 911 mSDtfsCounter, 73 mSDsluCounter, 4500 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 5411 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:28,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 5411 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:35:28,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2023-12-25 05:35:28,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 564. [2023-12-25 05:35:28,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 424 states have (on average 1.650943396226415) internal successors, (700), 440 states have internal predecessors, (700), 113 states have call successors, (113), 28 states have call predecessors, (113), 26 states have return successors, (110), 108 states have call predecessors, (110), 110 states have call successors, (110) [2023-12-25 05:35:28,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 923 transitions. [2023-12-25 05:35:28,533 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 923 transitions. Word has length 104 [2023-12-25 05:35:28,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:28,533 INFO L495 AbstractCegarLoop]: Abstraction has 564 states and 923 transitions. [2023-12-25 05:35:28,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-25 05:35:28,533 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 923 transitions. [2023-12-25 05:35:28,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-25 05:35:28,535 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:28,535 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] [2023-12-25 05:35:28,560 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-25 05:35:28,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:28,743 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:28,744 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:28,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1106191871, now seen corresponding path program 1 times [2023-12-25 05:35:28,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:28,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1859169192] [2023-12-25 05:35:28,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:28,745 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:28,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:28,766 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:35:28,798 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 (7)] Waiting until timeout for monitored process [2023-12-25 05:35:29,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:29,056 INFO L262 TraceCheckSpWp]: Trace formula consists of 832 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:35:29,059 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:29,111 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-25 05:35:29,111 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:29,112 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:29,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1859169192] [2023-12-25 05:35:29,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1859169192] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:29,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:29,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:35:29,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121802642] [2023-12-25 05:35:29,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:29,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:35:29,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:29,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:35:29,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:35:29,114 INFO L87 Difference]: Start difference. First operand 564 states and 923 transitions. Second operand has 7 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-25 05:35:29,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:29,272 INFO L93 Difference]: Finished difference Result 1126 states and 1850 transitions. [2023-12-25 05:35:29,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:35:29,273 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 104 [2023-12-25 05:35:29,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:29,275 INFO L225 Difference]: With dead ends: 1126 [2023-12-25 05:35:29,275 INFO L226 Difference]: Without dead ends: 564 [2023-12-25 05:35:29,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:35:29,279 INFO L413 NwaCegarLoop]: 899 mSDtfsCounter, 48 mSDsluCounter, 4464 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 5363 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:29,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 5363 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:35:29,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2023-12-25 05:35:29,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 564. [2023-12-25 05:35:29,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 424 states have (on average 1.6485849056603774) internal successors, (699), 440 states have internal predecessors, (699), 113 states have call successors, (113), 28 states have call predecessors, (113), 26 states have return successors, (110), 108 states have call predecessors, (110), 110 states have call successors, (110) [2023-12-25 05:35:29,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 922 transitions. [2023-12-25 05:35:29,295 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 922 transitions. Word has length 104 [2023-12-25 05:35:29,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:29,295 INFO L495 AbstractCegarLoop]: Abstraction has 564 states and 922 transitions. [2023-12-25 05:35:29,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-25 05:35:29,296 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 922 transitions. [2023-12-25 05:35:29,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-25 05:35:29,298 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:29,298 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] [2023-12-25 05:35:29,307 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-25 05:35:29,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:29,506 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:29,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:29,506 INFO L85 PathProgramCache]: Analyzing trace with hash 535244429, now seen corresponding path program 1 times [2023-12-25 05:35:29,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:29,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1760323820] [2023-12-25 05:35:29,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:29,507 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:29,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:29,509 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:35:29,542 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-25 05:35:29,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:29,798 INFO L262 TraceCheckSpWp]: Trace formula consists of 834 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:35:29,801 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:29,852 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-25 05:35:29,852 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:29,852 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:29,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1760323820] [2023-12-25 05:35:29,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1760323820] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:29,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:29,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:35:29,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313404671] [2023-12-25 05:35:29,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:29,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:35:29,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:29,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:35:29,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:35:29,854 INFO L87 Difference]: Start difference. First operand 564 states and 922 transitions. Second operand has 8 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-25 05:35:30,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:30,029 INFO L93 Difference]: Finished difference Result 1120 states and 1837 transitions. [2023-12-25 05:35:30,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:35:30,029 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 105 [2023-12-25 05:35:30,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:30,032 INFO L225 Difference]: With dead ends: 1120 [2023-12-25 05:35:30,032 INFO L226 Difference]: Without dead ends: 564 [2023-12-25 05:35:30,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:35:30,035 INFO L413 NwaCegarLoop]: 889 mSDtfsCounter, 35 mSDsluCounter, 5311 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 6200 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:30,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 6200 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:35:30,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2023-12-25 05:35:30,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 564. [2023-12-25 05:35:30,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 424 states have (on average 1.6462264150943395) internal successors, (698), 440 states have internal predecessors, (698), 113 states have call successors, (113), 28 states have call predecessors, (113), 26 states have return successors, (110), 108 states have call predecessors, (110), 110 states have call successors, (110) [2023-12-25 05:35:30,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 921 transitions. [2023-12-25 05:35:30,050 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 921 transitions. Word has length 105 [2023-12-25 05:35:30,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:30,051 INFO L495 AbstractCegarLoop]: Abstraction has 564 states and 921 transitions. [2023-12-25 05:35:30,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-25 05:35:30,051 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 921 transitions. [2023-12-25 05:35:30,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-25 05:35:30,053 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:30,053 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:35:30,064 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-25 05:35:30,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:30,262 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:30,263 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:30,263 INFO L85 PathProgramCache]: Analyzing trace with hash -2039332288, now seen corresponding path program 1 times [2023-12-25 05:35:30,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:30,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1205764488] [2023-12-25 05:35:30,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:30,264 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:30,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:30,281 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:35:30,316 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-25 05:35:30,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:30,593 INFO L262 TraceCheckSpWp]: Trace formula consists of 835 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:35:30,596 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:30,670 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-25 05:35:30,670 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:30,670 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:30,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1205764488] [2023-12-25 05:35:30,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1205764488] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:30,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:30,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:35:30,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531528897] [2023-12-25 05:35:30,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:30,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:35:30,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:30,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:35:30,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:35:30,672 INFO L87 Difference]: Start difference. First operand 564 states and 921 transitions. Second operand has 8 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-25 05:35:30,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:30,851 INFO L93 Difference]: Finished difference Result 1120 states and 1835 transitions. [2023-12-25 05:35:30,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:35:30,852 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 106 [2023-12-25 05:35:30,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:30,855 INFO L225 Difference]: With dead ends: 1120 [2023-12-25 05:35:30,855 INFO L226 Difference]: Without dead ends: 564 [2023-12-25 05:35:30,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:35:30,860 INFO L413 NwaCegarLoop]: 889 mSDtfsCounter, 32 mSDsluCounter, 5311 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 6200 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:30,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 6200 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:35:30,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2023-12-25 05:35:30,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 564. [2023-12-25 05:35:30,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 424 states have (on average 1.6438679245283019) internal successors, (697), 440 states have internal predecessors, (697), 113 states have call successors, (113), 28 states have call predecessors, (113), 26 states have return successors, (110), 108 states have call predecessors, (110), 110 states have call successors, (110) [2023-12-25 05:35:30,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 920 transitions. [2023-12-25 05:35:30,874 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 920 transitions. Word has length 106 [2023-12-25 05:35:30,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:30,874 INFO L495 AbstractCegarLoop]: Abstraction has 564 states and 920 transitions. [2023-12-25 05:35:30,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-25 05:35:30,874 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 920 transitions. [2023-12-25 05:35:30,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-25 05:35:30,876 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:30,876 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:35:30,888 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-25 05:35:31,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:31,087 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:31,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:31,087 INFO L85 PathProgramCache]: Analyzing trace with hash 353767474, now seen corresponding path program 1 times [2023-12-25 05:35:31,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:31,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1323386952] [2023-12-25 05:35:31,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:31,088 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:31,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:31,090 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:35:31,091 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-25 05:35:31,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:31,377 INFO L262 TraceCheckSpWp]: Trace formula consists of 836 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:35:31,380 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:31,436 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-25 05:35:31,436 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:31,436 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:31,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1323386952] [2023-12-25 05:35:31,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1323386952] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:31,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:31,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:35:31,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261954696] [2023-12-25 05:35:31,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:31,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:35:31,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:31,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:35:31,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:35:31,438 INFO L87 Difference]: Start difference. First operand 564 states and 920 transitions. Second operand has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-25 05:35:31,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:31,646 INFO L93 Difference]: Finished difference Result 1120 states and 1833 transitions. [2023-12-25 05:35:31,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:35:31,647 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 107 [2023-12-25 05:35:31,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:31,649 INFO L225 Difference]: With dead ends: 1120 [2023-12-25 05:35:31,649 INFO L226 Difference]: Without dead ends: 564 [2023-12-25 05:35:31,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:35:31,652 INFO L413 NwaCegarLoop]: 889 mSDtfsCounter, 29 mSDsluCounter, 5311 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 6200 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:31,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 6200 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:35:31,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2023-12-25 05:35:31,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 564. [2023-12-25 05:35:31,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 424 states have (on average 1.6415094339622642) internal successors, (696), 440 states have internal predecessors, (696), 113 states have call successors, (113), 28 states have call predecessors, (113), 26 states have return successors, (110), 108 states have call predecessors, (110), 110 states have call successors, (110) [2023-12-25 05:35:31,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 919 transitions. [2023-12-25 05:35:31,681 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 919 transitions. Word has length 107 [2023-12-25 05:35:31,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:31,681 INFO L495 AbstractCegarLoop]: Abstraction has 564 states and 919 transitions. [2023-12-25 05:35:31,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-25 05:35:31,682 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 919 transitions. [2023-12-25 05:35:31,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-25 05:35:31,683 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:31,683 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:35:31,704 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-25 05:35:31,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:31,893 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:31,894 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:31,894 INFO L85 PathProgramCache]: Analyzing trace with hash 2126015429, now seen corresponding path program 1 times [2023-12-25 05:35:31,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:31,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1942304623] [2023-12-25 05:35:31,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:31,895 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:31,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:31,896 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:35:31,953 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-25 05:35:32,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:32,204 INFO L262 TraceCheckSpWp]: Trace formula consists of 837 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:35:32,207 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:32,259 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-25 05:35:32,259 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:32,259 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:32,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1942304623] [2023-12-25 05:35:32,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1942304623] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:32,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:32,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:35:32,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106212816] [2023-12-25 05:35:32,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:32,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:35:32,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:32,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:35:32,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:35:32,261 INFO L87 Difference]: Start difference. First operand 564 states and 919 transitions. Second operand has 8 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-25 05:35:32,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:32,424 INFO L93 Difference]: Finished difference Result 1120 states and 1831 transitions. [2023-12-25 05:35:32,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:35:32,425 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 108 [2023-12-25 05:35:32,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:32,427 INFO L225 Difference]: With dead ends: 1120 [2023-12-25 05:35:32,427 INFO L226 Difference]: Without dead ends: 564 [2023-12-25 05:35:32,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:35:32,430 INFO L413 NwaCegarLoop]: 889 mSDtfsCounter, 26 mSDsluCounter, 5311 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 6200 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:32,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 6200 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:35:32,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2023-12-25 05:35:32,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 564. [2023-12-25 05:35:32,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 424 states have (on average 1.6391509433962264) internal successors, (695), 440 states have internal predecessors, (695), 113 states have call successors, (113), 28 states have call predecessors, (113), 26 states have return successors, (110), 108 states have call predecessors, (110), 110 states have call successors, (110) [2023-12-25 05:35:32,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 918 transitions. [2023-12-25 05:35:32,444 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 918 transitions. Word has length 108 [2023-12-25 05:35:32,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:32,444 INFO L495 AbstractCegarLoop]: Abstraction has 564 states and 918 transitions. [2023-12-25 05:35:32,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-25 05:35:32,444 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 918 transitions. [2023-12-25 05:35:32,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-25 05:35:32,446 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:32,446 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:35:32,457 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-25 05:35:32,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:32,655 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:32,655 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:32,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1831726551, now seen corresponding path program 1 times [2023-12-25 05:35:32,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:32,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1394199844] [2023-12-25 05:35:32,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:32,656 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:32,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:32,657 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:35:32,692 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-25 05:35:32,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:32,938 INFO L262 TraceCheckSpWp]: Trace formula consists of 838 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:35:32,941 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:33,007 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-25 05:35:33,007 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:33,008 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:33,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1394199844] [2023-12-25 05:35:33,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1394199844] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:33,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:33,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:35:33,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403624906] [2023-12-25 05:35:33,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:33,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:35:33,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:33,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:35:33,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:35:33,009 INFO L87 Difference]: Start difference. First operand 564 states and 918 transitions. Second operand has 6 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 4 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2023-12-25 05:35:33,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:33,652 INFO L93 Difference]: Finished difference Result 1612 states and 2647 transitions. [2023-12-25 05:35:33,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:35:33,654 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 4 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) Word has length 109 [2023-12-25 05:35:33,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:33,660 INFO L225 Difference]: With dead ends: 1612 [2023-12-25 05:35:33,660 INFO L226 Difference]: Without dead ends: 1060 [2023-12-25 05:35:33,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:35:33,667 INFO L413 NwaCegarLoop]: 924 mSDtfsCounter, 758 mSDsluCounter, 3189 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 762 SdHoareTripleChecker+Valid, 4113 SdHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:33,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [762 Valid, 4113 Invalid, 624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 05:35:33,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1060 states. [2023-12-25 05:35:33,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1060 to 1053. [2023-12-25 05:35:33,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1053 states, 795 states have (on average 1.6012578616352202) internal successors, (1273), 825 states have internal predecessors, (1273), 208 states have call successors, (208), 53 states have call predecessors, (208), 49 states have return successors, (209), 199 states have call predecessors, (209), 204 states have call successors, (209) [2023-12-25 05:35:33,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1053 states to 1053 states and 1690 transitions. [2023-12-25 05:35:33,701 INFO L78 Accepts]: Start accepts. Automaton has 1053 states and 1690 transitions. Word has length 109 [2023-12-25 05:35:33,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:33,701 INFO L495 AbstractCegarLoop]: Abstraction has 1053 states and 1690 transitions. [2023-12-25 05:35:33,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 4 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2023-12-25 05:35:33,701 INFO L276 IsEmpty]: Start isEmpty. Operand 1053 states and 1690 transitions. [2023-12-25 05:35:33,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-25 05:35:33,703 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:33,725 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:35:33,746 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-25 05:35:33,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:33,926 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:33,927 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:33,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1605306919, now seen corresponding path program 1 times [2023-12-25 05:35:33,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:33,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1751177240] [2023-12-25 05:35:33,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:33,927 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:33,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:33,941 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:35:33,972 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-25 05:35:34,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:34,244 INFO L262 TraceCheckSpWp]: Trace formula consists of 837 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:35:34,247 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:34,312 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-25 05:35:34,312 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:34,312 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:34,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1751177240] [2023-12-25 05:35:34,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1751177240] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:34,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:34,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:35:34,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227784024] [2023-12-25 05:35:34,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:34,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:35:34,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:34,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:35:34,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:35:34,313 INFO L87 Difference]: Start difference. First operand 1053 states and 1690 transitions. Second operand has 6 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-25 05:35:34,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:34,850 INFO L93 Difference]: Finished difference Result 2618 states and 4270 transitions. [2023-12-25 05:35:34,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:35:34,852 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 109 [2023-12-25 05:35:34,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:34,860 INFO L225 Difference]: With dead ends: 2618 [2023-12-25 05:35:34,860 INFO L226 Difference]: Without dead ends: 1577 [2023-12-25 05:35:34,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:35:34,866 INFO L413 NwaCegarLoop]: 1023 mSDtfsCounter, 849 mSDsluCounter, 3724 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 852 SdHoareTripleChecker+Valid, 4747 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:34,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [852 Valid, 4747 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 05:35:34,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1577 states. [2023-12-25 05:35:34,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1577 to 1568. [2023-12-25 05:35:34,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1187 states have (on average 1.6175231676495367) internal successors, (1920), 1230 states have internal predecessors, (1920), 306 states have call successors, (306), 78 states have call predecessors, (306), 74 states have return successors, (325), 297 states have call predecessors, (325), 301 states have call successors, (325) [2023-12-25 05:35:34,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 2551 transitions. [2023-12-25 05:35:34,909 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 2551 transitions. Word has length 109 [2023-12-25 05:35:34,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:34,910 INFO L495 AbstractCegarLoop]: Abstraction has 1568 states and 2551 transitions. [2023-12-25 05:35:34,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-25 05:35:34,910 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 2551 transitions. [2023-12-25 05:35:34,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-25 05:35:34,911 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:34,911 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:35:34,919 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 (13)] Ended with exit code 0 [2023-12-25 05:35:35,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:35,120 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:35,121 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:35,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1969514759, now seen corresponding path program 1 times [2023-12-25 05:35:35,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:35,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1592053114] [2023-12-25 05:35:35,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:35,121 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:35,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:35,122 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:35:35,155 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-25 05:35:35,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:35,384 INFO L262 TraceCheckSpWp]: Trace formula consists of 845 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:35:35,388 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:35,473 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-25 05:35:35,474 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:35,474 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:35,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1592053114] [2023-12-25 05:35:35,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1592053114] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:35,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:35,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:35:35,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965790596] [2023-12-25 05:35:35,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:35,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:35:35,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:35,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:35:35,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:35:35,475 INFO L87 Difference]: Start difference. First operand 1568 states and 2551 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-25 05:35:36,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:36,081 INFO L93 Difference]: Finished difference Result 4700 states and 7830 transitions. [2023-12-25 05:35:36,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:35:36,084 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 112 [2023-12-25 05:35:36,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:36,102 INFO L225 Difference]: With dead ends: 4700 [2023-12-25 05:35:36,103 INFO L226 Difference]: Without dead ends: 3144 [2023-12-25 05:35:36,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:35:36,114 INFO L413 NwaCegarLoop]: 1010 mSDtfsCounter, 935 mSDsluCounter, 3538 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 951 SdHoareTripleChecker+Valid, 4548 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:36,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [951 Valid, 4548 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 05:35:36,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3144 states. [2023-12-25 05:35:36,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3144 to 3070. [2023-12-25 05:35:36,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3070 states, 2328 states have (on average 1.6095360824742269) internal successors, (3747), 2412 states have internal predecessors, (3747), 592 states have call successors, (592), 153 states have call predecessors, (592), 149 states have return successors, (741), 580 states have call predecessors, (741), 584 states have call successors, (741) [2023-12-25 05:35:36,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3070 states to 3070 states and 5080 transitions. [2023-12-25 05:35:36,263 INFO L78 Accepts]: Start accepts. Automaton has 3070 states and 5080 transitions. Word has length 112 [2023-12-25 05:35:36,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:36,264 INFO L495 AbstractCegarLoop]: Abstraction has 3070 states and 5080 transitions. [2023-12-25 05:35:36,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-25 05:35:36,264 INFO L276 IsEmpty]: Start isEmpty. Operand 3070 states and 5080 transitions. [2023-12-25 05:35:36,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-25 05:35:36,266 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:36,266 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:35:36,288 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-25 05:35:36,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:36,474 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:36,475 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:36,475 INFO L85 PathProgramCache]: Analyzing trace with hash -95777523, now seen corresponding path program 1 times [2023-12-25 05:35:36,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:36,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [991062332] [2023-12-25 05:35:36,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:36,475 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:36,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:36,477 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:35:36,493 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-25 05:35:36,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:36,758 INFO L262 TraceCheckSpWp]: Trace formula consists of 846 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:35:36,761 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:36,776 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-25 05:35:36,776 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:36,776 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:36,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [991062332] [2023-12-25 05:35:36,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [991062332] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:36,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:36,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:35:36,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343922933] [2023-12-25 05:35:36,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:36,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:35:36,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:36,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:35:36,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:35:36,790 INFO L87 Difference]: Start difference. First operand 3070 states and 5080 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:35:37,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:37,129 INFO L93 Difference]: Finished difference Result 6146 states and 10300 transitions. [2023-12-25 05:35:37,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:35:37,144 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 113 [2023-12-25 05:35:37,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:37,160 INFO L225 Difference]: With dead ends: 6146 [2023-12-25 05:35:37,171 INFO L226 Difference]: Without dead ends: 3088 [2023-12-25 05:35:37,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:35:37,196 INFO L413 NwaCegarLoop]: 882 mSDtfsCounter, 19 mSDsluCounter, 1735 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 2617 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:37,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 2617 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:35:37,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3088 states. [2023-12-25 05:35:37,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3088 to 3082. [2023-12-25 05:35:37,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3082 states, 2337 states have (on average 1.6059050064184852) internal successors, (3753), 2421 states have internal predecessors, (3753), 592 states have call successors, (592), 159 states have call predecessors, (592), 152 states have return successors, (728), 577 states have call predecessors, (728), 584 states have call successors, (728) [2023-12-25 05:35:37,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3082 states to 3082 states and 5073 transitions. [2023-12-25 05:35:37,310 INFO L78 Accepts]: Start accepts. Automaton has 3082 states and 5073 transitions. Word has length 113 [2023-12-25 05:35:37,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:37,310 INFO L495 AbstractCegarLoop]: Abstraction has 3082 states and 5073 transitions. [2023-12-25 05:35:37,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:35:37,310 INFO L276 IsEmpty]: Start isEmpty. Operand 3082 states and 5073 transitions. [2023-12-25 05:35:37,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-25 05:35:37,312 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:37,313 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:35:37,330 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-12-25 05:35:37,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:37,523 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:37,523 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:37,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1619797581, now seen corresponding path program 1 times [2023-12-25 05:35:37,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:37,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1043918085] [2023-12-25 05:35:37,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:37,524 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:37,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:37,525 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:35:37,526 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-25 05:35:37,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:37,823 INFO L262 TraceCheckSpWp]: Trace formula consists of 858 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:35:37,826 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:37,942 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-25 05:35:37,942 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:37,942 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:37,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1043918085] [2023-12-25 05:35:37,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1043918085] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:37,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:37,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:35:37,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743189479] [2023-12-25 05:35:37,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:37,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:35:37,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:37,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:35:37,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:35:37,944 INFO L87 Difference]: Start difference. First operand 3082 states and 5073 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-25 05:35:38,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:38,745 INFO L93 Difference]: Finished difference Result 9307 states and 15790 transitions. [2023-12-25 05:35:38,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:35:38,747 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 121 [2023-12-25 05:35:38,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:38,781 INFO L225 Difference]: With dead ends: 9307 [2023-12-25 05:35:38,781 INFO L226 Difference]: Without dead ends: 6237 [2023-12-25 05:35:38,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:35:38,799 INFO L413 NwaCegarLoop]: 979 mSDtfsCounter, 910 mSDsluCounter, 3557 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 921 SdHoareTripleChecker+Valid, 4536 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:38,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [921 Valid, 4536 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 05:35:38,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6237 states. [2023-12-25 05:35:39,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6237 to 6125. [2023-12-25 05:35:39,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6125 states, 4649 states have (on average 1.599913959991396) internal successors, (7438), 4815 states have internal predecessors, (7438), 1167 states have call successors, (1167), 315 states have call predecessors, (1167), 308 states have return successors, (1703), 1146 states have call predecessors, (1703), 1153 states have call successors, (1703) [2023-12-25 05:35:39,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6125 states to 6125 states and 10308 transitions. [2023-12-25 05:35:39,068 INFO L78 Accepts]: Start accepts. Automaton has 6125 states and 10308 transitions. Word has length 121 [2023-12-25 05:35:39,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:39,070 INFO L495 AbstractCegarLoop]: Abstraction has 6125 states and 10308 transitions. [2023-12-25 05:35:39,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-25 05:35:39,071 INFO L276 IsEmpty]: Start isEmpty. Operand 6125 states and 10308 transitions. [2023-12-25 05:35:39,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-25 05:35:39,073 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:39,073 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:35:39,083 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-12-25 05:35:39,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:39,280 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:39,281 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:39,281 INFO L85 PathProgramCache]: Analyzing trace with hash -917317045, now seen corresponding path program 1 times [2023-12-25 05:35:39,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:39,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [296076115] [2023-12-25 05:35:39,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:39,281 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 [2023-12-25 05:35:39,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:39,283 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:35:39,300 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-25 05:35:39,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:39,588 INFO L262 TraceCheckSpWp]: Trace formula consists of 859 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:35:39,591 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:39,611 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-25 05:35:39,611 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:39,611 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:39,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [296076115] [2023-12-25 05:35:39,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [296076115] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:39,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:39,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:35:39,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312975972] [2023-12-25 05:35:39,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:39,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:35:39,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:39,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:35:39,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:35:39,613 INFO L87 Difference]: Start difference. First operand 6125 states and 10308 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:35:39,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:39,999 INFO L93 Difference]: Finished difference Result 12310 states and 21061 transitions. [2023-12-25 05:35:40,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:35:40,000 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 122 [2023-12-25 05:35:40,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:40,091 INFO L225 Difference]: With dead ends: 12310 [2023-12-25 05:35:40,091 INFO L226 Difference]: Without dead ends: 6197 [2023-12-25 05:35:40,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:35:40,154 INFO L413 NwaCegarLoop]: 880 mSDtfsCounter, 21 mSDsluCounter, 1735 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 2615 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:40,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 2615 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:35:40,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6197 states. [2023-12-25 05:35:40,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6197 to 6185. [2023-12-25 05:35:40,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6185 states, 4703 states have (on average 1.5943015096746758) internal successors, (7498), 4857 states have internal predecessors, (7498), 1167 states have call successors, (1167), 339 states have call predecessors, (1167), 314 states have return successors, (1685), 1140 states have call predecessors, (1685), 1153 states have call successors, (1685) [2023-12-25 05:35:40,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6185 states to 6185 states and 10350 transitions. [2023-12-25 05:35:40,379 INFO L78 Accepts]: Start accepts. Automaton has 6185 states and 10350 transitions. Word has length 122 [2023-12-25 05:35:40,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:40,379 INFO L495 AbstractCegarLoop]: Abstraction has 6185 states and 10350 transitions. [2023-12-25 05:35:40,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:35:40,380 INFO L276 IsEmpty]: Start isEmpty. Operand 6185 states and 10350 transitions. [2023-12-25 05:35:40,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-25 05:35:40,382 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:40,382 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:35:40,392 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-12-25 05:35:40,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:40,592 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:40,593 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:40,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1481530959, now seen corresponding path program 1 times [2023-12-25 05:35:40,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:40,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [88842018] [2023-12-25 05:35:40,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:40,593 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:40,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:40,594 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:35:40,629 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-25 05:35:40,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:40,905 INFO L262 TraceCheckSpWp]: Trace formula consists of 872 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:35:40,908 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:41,036 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-12-25 05:35:41,036 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:41,036 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:41,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [88842018] [2023-12-25 05:35:41,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [88842018] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:41,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:41,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:35:41,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127855802] [2023-12-25 05:35:41,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:41,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:35:41,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:41,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:35:41,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:35:41,038 INFO L87 Difference]: Start difference. First operand 6185 states and 10350 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-25 05:35:42,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:42,109 INFO L93 Difference]: Finished difference Result 18699 states and 32650 transitions. [2023-12-25 05:35:42,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:35:42,111 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 131 [2023-12-25 05:35:42,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:42,180 INFO L225 Difference]: With dead ends: 18699 [2023-12-25 05:35:42,180 INFO L226 Difference]: Without dead ends: 12526 [2023-12-25 05:35:42,220 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:35:42,220 INFO L413 NwaCegarLoop]: 1010 mSDtfsCounter, 886 mSDsluCounter, 3656 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 894 SdHoareTripleChecker+Valid, 4666 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:42,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [894 Valid, 4666 Invalid, 398 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [21 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 05:35:42,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12526 states. [2023-12-25 05:35:42,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12526 to 12370. [2023-12-25 05:35:42,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12370 states, 9411 states have (on average 1.5893103814684943) internal successors, (14957), 9717 states have internal predecessors, (14957), 2320 states have call successors, (2320), 675 states have call predecessors, (2320), 638 states have return successors, (4096), 2281 states have call predecessors, (4096), 2294 states have call successors, (4096) [2023-12-25 05:35:42,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12370 states to 12370 states and 21373 transitions. [2023-12-25 05:35:42,751 INFO L78 Accepts]: Start accepts. Automaton has 12370 states and 21373 transitions. Word has length 131 [2023-12-25 05:35:42,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:42,752 INFO L495 AbstractCegarLoop]: Abstraction has 12370 states and 21373 transitions. [2023-12-25 05:35:42,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-25 05:35:42,752 INFO L276 IsEmpty]: Start isEmpty. Operand 12370 states and 21373 transitions. [2023-12-25 05:35:42,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-25 05:35:42,754 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:42,754 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:35:42,771 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2023-12-25 05:35:42,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:42,965 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:42,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:42,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1956717031, now seen corresponding path program 1 times [2023-12-25 05:35:42,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:42,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [985417856] [2023-12-25 05:35:42,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:42,966 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:42,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:42,981 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:35:42,999 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-12-25 05:35:43,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:43,276 INFO L262 TraceCheckSpWp]: Trace formula consists of 873 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:35:43,279 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:43,294 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-25 05:35:43,294 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:43,294 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:43,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [985417856] [2023-12-25 05:35:43,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [985417856] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:43,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:43,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:35:43,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459383027] [2023-12-25 05:35:43,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:43,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:35:43,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:43,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:35:43,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:35:43,298 INFO L87 Difference]: Start difference. First operand 12370 states and 21373 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-25 05:35:44,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:44,089 INFO L93 Difference]: Finished difference Result 24872 states and 44061 transitions. [2023-12-25 05:35:44,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:35:44,089 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 132 [2023-12-25 05:35:44,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:44,150 INFO L225 Difference]: With dead ends: 24872 [2023-12-25 05:35:44,150 INFO L226 Difference]: Without dead ends: 12514 [2023-12-25 05:35:44,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:35:44,273 INFO L413 NwaCegarLoop]: 880 mSDtfsCounter, 21 mSDsluCounter, 1735 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 2615 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:44,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 2615 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:35:44,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12514 states. [2023-12-25 05:35:44,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12514 to 12490. [2023-12-25 05:35:44,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12490 states, 9519 states have (on average 1.5838848618552368) internal successors, (15077), 9825 states have internal predecessors, (15077), 2320 states have call successors, (2320), 699 states have call predecessors, (2320), 650 states have return successors, (4076), 2269 states have call predecessors, (4076), 2294 states have call successors, (4076) [2023-12-25 05:35:44,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12490 states to 12490 states and 21473 transitions. [2023-12-25 05:35:44,781 INFO L78 Accepts]: Start accepts. Automaton has 12490 states and 21473 transitions. Word has length 132 [2023-12-25 05:35:44,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:44,781 INFO L495 AbstractCegarLoop]: Abstraction has 12490 states and 21473 transitions. [2023-12-25 05:35:44,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-25 05:35:44,781 INFO L276 IsEmpty]: Start isEmpty. Operand 12490 states and 21473 transitions. [2023-12-25 05:35:44,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-25 05:35:44,783 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:44,783 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:35:44,806 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2023-12-25 05:35:44,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:44,992 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:44,993 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:44,993 INFO L85 PathProgramCache]: Analyzing trace with hash -914115203, now seen corresponding path program 1 times [2023-12-25 05:35:44,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:44,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1648688936] [2023-12-25 05:35:44,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:44,994 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:44,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:45,009 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:35:45,074 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-12-25 05:35:45,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:45,347 INFO L262 TraceCheckSpWp]: Trace formula consists of 887 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:35:45,350 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:45,451 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-25 05:35:45,452 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:45,452 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:45,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1648688936] [2023-12-25 05:35:45,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1648688936] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:45,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:45,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:35:45,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175697964] [2023-12-25 05:35:45,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:45,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:35:45,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:45,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:35:45,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:35:45,454 INFO L87 Difference]: Start difference. First operand 12490 states and 21473 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-25 05:35:47,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:47,230 INFO L93 Difference]: Finished difference Result 37701 states and 69102 transitions. [2023-12-25 05:35:47,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:35:47,231 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 142 [2023-12-25 05:35:47,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:47,393 INFO L225 Difference]: With dead ends: 37701 [2023-12-25 05:35:47,394 INFO L226 Difference]: Without dead ends: 25223 [2023-12-25 05:35:47,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:35:47,618 INFO L413 NwaCegarLoop]: 998 mSDtfsCounter, 867 mSDsluCounter, 3539 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 872 SdHoareTripleChecker+Valid, 4537 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:47,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [872 Valid, 4537 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 05:35:47,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25223 states. [2023-12-25 05:35:48,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25223 to 25043. [2023-12-25 05:35:48,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25043 states, 19091 states have (on average 1.5793829553192604) internal successors, (30152), 19701 states have internal predecessors, (30152), 4629 states have call successors, (4629), 1395 states have call predecessors, (4629), 1322 states have return successors, (10471), 4554 states have call predecessors, (10471), 4579 states have call successors, (10471) [2023-12-25 05:35:49,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25043 states to 25043 states and 45252 transitions. [2023-12-25 05:35:49,197 INFO L78 Accepts]: Start accepts. Automaton has 25043 states and 45252 transitions. Word has length 142 [2023-12-25 05:35:49,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:49,198 INFO L495 AbstractCegarLoop]: Abstraction has 25043 states and 45252 transitions. [2023-12-25 05:35:49,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-25 05:35:49,198 INFO L276 IsEmpty]: Start isEmpty. Operand 25043 states and 45252 transitions. [2023-12-25 05:35:49,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-25 05:35:49,200 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:49,200 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:35:49,208 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2023-12-25 05:35:49,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:49,409 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:49,409 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:49,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1189901357, now seen corresponding path program 1 times [2023-12-25 05:35:49,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:49,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1720120321] [2023-12-25 05:35:49,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:49,410 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:49,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:49,411 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:35:49,446 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-12-25 05:35:49,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:49,697 INFO L262 TraceCheckSpWp]: Trace formula consists of 887 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:35:49,700 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:49,827 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-25 05:35:49,827 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:49,827 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:49,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1720120321] [2023-12-25 05:35:49,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1720120321] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:49,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:49,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:35:49,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087780873] [2023-12-25 05:35:49,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:49,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:35:49,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:49,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:35:49,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:35:49,829 INFO L87 Difference]: Start difference. First operand 25043 states and 45252 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-25 05:35:52,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:52,371 INFO L93 Difference]: Finished difference Result 50266 states and 96295 transitions. [2023-12-25 05:35:52,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:35:52,373 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 143 [2023-12-25 05:35:52,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:52,552 INFO L225 Difference]: With dead ends: 50266 [2023-12-25 05:35:52,552 INFO L226 Difference]: Without dead ends: 25235 [2023-12-25 05:35:52,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:35:52,985 INFO L413 NwaCegarLoop]: 873 mSDtfsCounter, 818 mSDsluCounter, 1331 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 836 SdHoareTripleChecker+Valid, 2204 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:52,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [836 Valid, 2204 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 536 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 05:35:53,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25235 states. [2023-12-25 05:35:54,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25235 to 25235. [2023-12-25 05:35:54,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25235 states, 19235 states have (on average 1.5750454899922017) internal successors, (30296), 19845 states have internal predecessors, (30296), 4629 states have call successors, (4629), 1443 states have call predecessors, (4629), 1370 states have return successors, (10519), 4554 states have call predecessors, (10519), 4579 states have call successors, (10519) [2023-12-25 05:35:54,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25235 states to 25235 states and 45444 transitions. [2023-12-25 05:35:54,601 INFO L78 Accepts]: Start accepts. Automaton has 25235 states and 45444 transitions. Word has length 143 [2023-12-25 05:35:54,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:54,602 INFO L495 AbstractCegarLoop]: Abstraction has 25235 states and 45444 transitions. [2023-12-25 05:35:54,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-25 05:35:54,602 INFO L276 IsEmpty]: Start isEmpty. Operand 25235 states and 45444 transitions. [2023-12-25 05:35:54,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-25 05:35:54,604 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:54,604 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:35:54,613 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2023-12-25 05:35:54,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:54,814 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:54,814 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:54,814 INFO L85 PathProgramCache]: Analyzing trace with hash 443823241, now seen corresponding path program 1 times [2023-12-25 05:35:54,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:54,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1479927896] [2023-12-25 05:35:54,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:54,815 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:54,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:54,816 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:35:54,818 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-12-25 05:35:55,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:55,084 INFO L262 TraceCheckSpWp]: Trace formula consists of 889 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:35:55,088 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:55,211 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-25 05:35:55,211 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:55,211 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:55,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1479927896] [2023-12-25 05:35:55,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1479927896] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:55,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:55,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:35:55,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108886178] [2023-12-25 05:35:55,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:55,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:35:55,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:55,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:35:55,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:35:55,213 INFO L87 Difference]: Start difference. First operand 25235 states and 45444 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-25 05:35:57,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:57,807 INFO L93 Difference]: Finished difference Result 50698 states and 96647 transitions. [2023-12-25 05:35:57,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:35:57,809 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 145 [2023-12-25 05:35:57,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:57,949 INFO L225 Difference]: With dead ends: 50698 [2023-12-25 05:35:57,949 INFO L226 Difference]: Without dead ends: 25475 [2023-12-25 05:35:58,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:35:58,293 INFO L413 NwaCegarLoop]: 874 mSDtfsCounter, 829 mSDsluCounter, 1331 mSDsCounter, 0 mSdLazyCounter, 540 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 846 SdHoareTripleChecker+Valid, 2205 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:58,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [846 Valid, 2205 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 540 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 05:35:58,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25475 states. [2023-12-25 05:35:59,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25475 to 25475. [2023-12-25 05:35:59,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25475 states, 19427 states have (on average 1.5693622278272508) internal successors, (30488), 20037 states have internal predecessors, (30488), 4629 states have call successors, (4629), 1491 states have call predecessors, (4629), 1418 states have return successors, (10567), 4554 states have call predecessors, (10567), 4579 states have call successors, (10567) [2023-12-25 05:35:59,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25475 states to 25475 states and 45684 transitions. [2023-12-25 05:35:59,988 INFO L78 Accepts]: Start accepts. Automaton has 25475 states and 45684 transitions. Word has length 145 [2023-12-25 05:35:59,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:59,995 INFO L495 AbstractCegarLoop]: Abstraction has 25475 states and 45684 transitions. [2023-12-25 05:35:59,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-25 05:35:59,996 INFO L276 IsEmpty]: Start isEmpty. Operand 25475 states and 45684 transitions. [2023-12-25 05:35:59,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-25 05:35:59,997 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:59,997 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:36:00,007 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2023-12-25 05:36:00,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:36:00,208 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:36:00,208 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:36:00,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1221040915, now seen corresponding path program 1 times [2023-12-25 05:36:00,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:36:00,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1673596619] [2023-12-25 05:36:00,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:36:00,209 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:36:00,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:36:00,210 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:36:00,243 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-12-25 05:36:00,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:36:00,509 INFO L262 TraceCheckSpWp]: Trace formula consists of 891 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:36:00,512 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:36:00,650 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-25 05:36:00,650 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:36:00,650 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:36:00,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1673596619] [2023-12-25 05:36:00,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1673596619] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:36:00,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:36:00,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:36:00,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137653306] [2023-12-25 05:36:00,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:36:00,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:36:00,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:36:00,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:36:00,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:36:00,651 INFO L87 Difference]: Start difference. First operand 25475 states and 45684 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-25 05:36:03,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:36:03,189 INFO L93 Difference]: Finished difference Result 51226 states and 97119 transitions. [2023-12-25 05:36:03,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:36:03,191 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 147 [2023-12-25 05:36:03,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:36:03,380 INFO L225 Difference]: With dead ends: 51226 [2023-12-25 05:36:03,380 INFO L226 Difference]: Without dead ends: 25763 [2023-12-25 05:36:03,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:36:03,742 INFO L413 NwaCegarLoop]: 874 mSDtfsCounter, 828 mSDsluCounter, 1331 mSDsCounter, 0 mSdLazyCounter, 541 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 845 SdHoareTripleChecker+Valid, 2205 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:36:03,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [845 Valid, 2205 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 541 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 05:36:03,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25763 states. [2023-12-25 05:36:04,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25763 to 25763. [2023-12-25 05:36:04,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25763 states, 19667 states have (on average 1.562414196369553) internal successors, (30728), 20277 states have internal predecessors, (30728), 4629 states have call successors, (4629), 1539 states have call predecessors, (4629), 1466 states have return successors, (10615), 4554 states have call predecessors, (10615), 4579 states have call successors, (10615) [2023-12-25 05:36:05,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25763 states to 25763 states and 45972 transitions. [2023-12-25 05:36:05,087 INFO L78 Accepts]: Start accepts. Automaton has 25763 states and 45972 transitions. Word has length 147 [2023-12-25 05:36:05,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:36:05,088 INFO L495 AbstractCegarLoop]: Abstraction has 25763 states and 45972 transitions. [2023-12-25 05:36:05,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-25 05:36:05,088 INFO L276 IsEmpty]: Start isEmpty. Operand 25763 states and 45972 transitions. [2023-12-25 05:36:05,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-12-25 05:36:05,103 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:36:05,103 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:36:05,112 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2023-12-25 05:36:05,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:36:05,304 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:36:05,305 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:36:05,305 INFO L85 PathProgramCache]: Analyzing trace with hash -971939375, now seen corresponding path program 1 times [2023-12-25 05:36:05,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:36:05,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [349518989] [2023-12-25 05:36:05,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:36:05,305 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:36:05,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:36:05,306 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:36:05,310 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-12-25 05:36:05,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:36:05,719 INFO L262 TraceCheckSpWp]: Trace formula consists of 893 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:36:05,722 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:36:05,840 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-25 05:36:05,840 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:36:05,841 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:36:05,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [349518989] [2023-12-25 05:36:05,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [349518989] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:36:05,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:36:05,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:36:05,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114406181] [2023-12-25 05:36:05,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:36:05,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:36:05,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:36:05,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:36:05,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:36:05,842 INFO L87 Difference]: Start difference. First operand 25763 states and 45972 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-25 05:36:08,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:36:08,299 INFO L93 Difference]: Finished difference Result 51850 states and 97699 transitions. [2023-12-25 05:36:08,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:36:08,302 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 149 [2023-12-25 05:36:08,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:36:08,608 INFO L225 Difference]: With dead ends: 51850 [2023-12-25 05:36:08,608 INFO L226 Difference]: Without dead ends: 26099 [2023-12-25 05:36:08,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:36:08,849 INFO L413 NwaCegarLoop]: 874 mSDtfsCounter, 827 mSDsluCounter, 1331 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 844 SdHoareTripleChecker+Valid, 2205 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:36:08,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [844 Valid, 2205 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 542 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 05:36:08,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26099 states. [2023-12-25 05:36:09,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26099 to 26099. [2023-12-25 05:36:09,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26099 states, 19955 states have (on average 1.5542971686294162) internal successors, (31016), 20565 states have internal predecessors, (31016), 4629 states have call successors, (4629), 1587 states have call predecessors, (4629), 1514 states have return successors, (10663), 4554 states have call predecessors, (10663), 4579 states have call successors, (10663) [2023-12-25 05:36:10,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26099 states to 26099 states and 46308 transitions. [2023-12-25 05:36:10,430 INFO L78 Accepts]: Start accepts. Automaton has 26099 states and 46308 transitions. Word has length 149 [2023-12-25 05:36:10,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:36:10,431 INFO L495 AbstractCegarLoop]: Abstraction has 26099 states and 46308 transitions. [2023-12-25 05:36:10,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-25 05:36:10,431 INFO L276 IsEmpty]: Start isEmpty. Operand 26099 states and 46308 transitions. [2023-12-25 05:36:10,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-12-25 05:36:10,432 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:36:10,432 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:36:10,440 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2023-12-25 05:36:10,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:36:10,641 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:36:10,641 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:36:10,641 INFO L85 PathProgramCache]: Analyzing trace with hash -134858835, now seen corresponding path program 1 times [2023-12-25 05:36:10,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:36:10,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1553997231] [2023-12-25 05:36:10,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:36:10,642 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:36:10,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:36:10,643 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:36:10,644 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-25 05:36:10,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:36:10,923 INFO L262 TraceCheckSpWp]: Trace formula consists of 895 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:36:10,926 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:36:11,232 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-12-25 05:36:11,232 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:36:11,232 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:36:11,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1553997231] [2023-12-25 05:36:11,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1553997231] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:36:11,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:36:11,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:36:11,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989350047] [2023-12-25 05:36:11,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:36:11,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:36:11,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:36:11,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:36:11,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:36:11,234 INFO L87 Difference]: Start difference. First operand 26099 states and 46308 transitions. Second operand has 7 states, 6 states have (on average 16.666666666666668) internal successors, (100), 5 states have internal predecessors, (100), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-12-25 05:36:14,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:36:14,236 INFO L93 Difference]: Finished difference Result 52302 states and 94422 transitions. [2023-12-25 05:36:14,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 05:36:14,237 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 16.666666666666668) internal successors, (100), 5 states have internal predecessors, (100), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 151 [2023-12-25 05:36:14,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:36:14,498 INFO L225 Difference]: With dead ends: 52302 [2023-12-25 05:36:14,498 INFO L226 Difference]: Without dead ends: 26215 [2023-12-25 05:36:14,680 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-12-25 05:36:14,681 INFO L413 NwaCegarLoop]: 926 mSDtfsCounter, 2056 mSDsluCounter, 2501 mSDsCounter, 0 mSdLazyCounter, 1263 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2060 SdHoareTripleChecker+Valid, 3427 SdHoareTripleChecker+Invalid, 1404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 1263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:36:14,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2060 Valid, 3427 Invalid, 1404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 1263 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-25 05:36:14,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26215 states. [2023-12-25 05:36:15,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26215 to 26099. [2023-12-25 05:36:15,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26099 states, 19955 states have (on average 1.5534953645702831) internal successors, (31000), 20565 states have internal predecessors, (31000), 4629 states have call successors, (4629), 1587 states have call predecessors, (4629), 1514 states have return successors, (10663), 4554 states have call predecessors, (10663), 4579 states have call successors, (10663) [2023-12-25 05:36:16,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26099 states to 26099 states and 46292 transitions. [2023-12-25 05:36:16,021 INFO L78 Accepts]: Start accepts. Automaton has 26099 states and 46292 transitions. Word has length 151 [2023-12-25 05:36:16,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:36:16,021 INFO L495 AbstractCegarLoop]: Abstraction has 26099 states and 46292 transitions. [2023-12-25 05:36:16,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 16.666666666666668) internal successors, (100), 5 states have internal predecessors, (100), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-12-25 05:36:16,021 INFO L276 IsEmpty]: Start isEmpty. Operand 26099 states and 46292 transitions. [2023-12-25 05:36:16,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-12-25 05:36:16,022 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:36:16,023 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:36:16,031 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Ended with exit code 0 [2023-12-25 05:36:16,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:36:16,231 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:36:16,231 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:36:16,231 INFO L85 PathProgramCache]: Analyzing trace with hash 504166643, now seen corresponding path program 1 times [2023-12-25 05:36:16,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:36:16,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [670283822] [2023-12-25 05:36:16,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:36:16,232 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:36:16,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:36:16,244 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:36:16,246 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-12-25 05:36:16,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:36:16,558 INFO L262 TraceCheckSpWp]: Trace formula consists of 910 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-25 05:36:16,561 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:36:16,689 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-25 05:36:16,689 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:36:16,689 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:36:16,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [670283822] [2023-12-25 05:36:16,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [670283822] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:36:16,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:36:16,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:36:16,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137497352] [2023-12-25 05:36:16,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:36:16,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:36:16,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:36:16,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:36:16,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:36:16,691 INFO L87 Difference]: Start difference. First operand 26099 states and 46292 transitions. Second operand has 8 states, 7 states have (on average 15.0) internal successors, (105), 6 states have internal predecessors, (105), 3 states have call successors, (23), 3 states have call predecessors, (23), 5 states have return successors, (21), 5 states have call predecessors, (21), 3 states have call successors, (21) [2023-12-25 05:36:20,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:36:20,372 INFO L93 Difference]: Finished difference Result 78851 states and 146584 transitions. [2023-12-25 05:36:20,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 05:36:20,374 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 15.0) internal successors, (105), 6 states have internal predecessors, (105), 3 states have call successors, (23), 3 states have call predecessors, (23), 5 states have return successors, (21), 5 states have call predecessors, (21), 3 states have call successors, (21) Word has length 160 [2023-12-25 05:36:20,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:36:20,862 INFO L225 Difference]: With dead ends: 78851 [2023-12-25 05:36:20,862 INFO L226 Difference]: Without dead ends: 52764 [2023-12-25 05:36:21,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-12-25 05:36:21,232 INFO L413 NwaCegarLoop]: 1127 mSDtfsCounter, 860 mSDsluCounter, 5635 mSDsCounter, 0 mSdLazyCounter, 837 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 865 SdHoareTripleChecker+Valid, 6762 SdHoareTripleChecker+Invalid, 841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-25 05:36:21,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [865 Valid, 6762 Invalid, 841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 837 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-25 05:36:21,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52764 states. [2023-12-25 05:36:23,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52764 to 52472. [2023-12-25 05:36:23,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52472 states, 40096 states have (on average 1.5509277733439744) internal successors, (62186), 41314 states have internal predecessors, (62186), 9253 states have call successors, (9253), 3171 states have call predecessors, (9253), 3122 states have return successors, (24671), 9202 states have call predecessors, (24671), 9155 states have call successors, (24671) [2023-12-25 05:36:24,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52472 states to 52472 states and 96110 transitions. [2023-12-25 05:36:24,589 INFO L78 Accepts]: Start accepts. Automaton has 52472 states and 96110 transitions. Word has length 160 [2023-12-25 05:36:24,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:36:24,590 INFO L495 AbstractCegarLoop]: Abstraction has 52472 states and 96110 transitions. [2023-12-25 05:36:24,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 15.0) internal successors, (105), 6 states have internal predecessors, (105), 3 states have call successors, (23), 3 states have call predecessors, (23), 5 states have return successors, (21), 5 states have call predecessors, (21), 3 states have call successors, (21) [2023-12-25 05:36:24,590 INFO L276 IsEmpty]: Start isEmpty. Operand 52472 states and 96110 transitions. [2023-12-25 05:36:24,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-12-25 05:36:24,592 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:36:24,593 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:36:24,604 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Ended with exit code 0 [2023-12-25 05:36:24,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:36:24,800 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:36:24,801 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:36:24,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1704006700, now seen corresponding path program 1 times [2023-12-25 05:36:24,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:36:24,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1825179761] [2023-12-25 05:36:24,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:36:24,801 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:36:24,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:36:24,802 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:36:24,803 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2023-12-25 05:36:25,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:36:25,110 INFO L262 TraceCheckSpWp]: Trace formula consists of 918 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:36:25,112 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:36:25,623 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-25 05:36:25,623 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:36:25,624 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:36:25,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1825179761] [2023-12-25 05:36:25,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1825179761] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:36:25,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:36:25,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:36:25,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653389645] [2023-12-25 05:36:25,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:36:25,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:36:25,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:36:25,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:36:25,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:36:25,625 INFO L87 Difference]: Start difference. First operand 52472 states and 96110 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2023-12-25 05:36:30,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:36:30,153 INFO L93 Difference]: Finished difference Result 105062 states and 196831 transitions. [2023-12-25 05:36:30,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:36:30,155 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) Word has length 165 [2023-12-25 05:36:30,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:36:30,687 INFO L225 Difference]: With dead ends: 105062 [2023-12-25 05:36:30,687 INFO L226 Difference]: Without dead ends: 52604 [2023-12-25 05:36:31,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:36:31,415 INFO L413 NwaCegarLoop]: 919 mSDtfsCounter, 678 mSDsluCounter, 1869 mSDsCounter, 0 mSdLazyCounter, 660 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 688 SdHoareTripleChecker+Valid, 2788 SdHoareTripleChecker+Invalid, 662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 660 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:36:31,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [688 Valid, 2788 Invalid, 662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 660 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 05:36:31,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52604 states. [2023-12-25 05:36:33,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52604 to 52472. [2023-12-25 05:36:33,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52472 states, 40096 states have (on average 1.5509277733439744) internal successors, (62186), 41314 states have internal predecessors, (62186), 9253 states have call successors, (9253), 3171 states have call predecessors, (9253), 3122 states have return successors, (24639), 9202 states have call predecessors, (24639), 9155 states have call successors, (24639) [2023-12-25 05:36:34,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52472 states to 52472 states and 96078 transitions. [2023-12-25 05:36:34,946 INFO L78 Accepts]: Start accepts. Automaton has 52472 states and 96078 transitions. Word has length 165 [2023-12-25 05:36:34,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:36:34,947 INFO L495 AbstractCegarLoop]: Abstraction has 52472 states and 96078 transitions. [2023-12-25 05:36:34,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2023-12-25 05:36:34,947 INFO L276 IsEmpty]: Start isEmpty. Operand 52472 states and 96078 transitions. [2023-12-25 05:36:34,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-25 05:36:34,949 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:36:34,949 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:36:34,957 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2023-12-25 05:36:35,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:36:35,157 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:36:35,157 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:36:35,157 INFO L85 PathProgramCache]: Analyzing trace with hash 179966630, now seen corresponding path program 1 times [2023-12-25 05:36:35,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:36:35,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1068567140] [2023-12-25 05:36:35,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:36:35,158 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:36:35,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:36:35,159 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:36:35,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2023-12-25 05:36:35,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:36:35,491 INFO L262 TraceCheckSpWp]: Trace formula consists of 914 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:36:35,494 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:36:35,630 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-25 05:36:35,630 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:36:35,631 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:36:35,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1068567140] [2023-12-25 05:36:35,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1068567140] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:36:35,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:36:35,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:36:35,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356137088] [2023-12-25 05:36:35,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:36:35,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:36:35,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:36:35,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:36:35,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:36:35,632 INFO L87 Difference]: Start difference. First operand 52472 states and 96078 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-12-25 05:36:40,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:36:40,804 INFO L93 Difference]: Finished difference Result 104738 states and 204103 transitions. [2023-12-25 05:36:40,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:36:40,806 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 162 [2023-12-25 05:36:40,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:36:41,317 INFO L225 Difference]: With dead ends: 104738 [2023-12-25 05:36:41,317 INFO L226 Difference]: Without dead ends: 52280 [2023-12-25 05:36:42,434 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:36:42,436 INFO L413 NwaCegarLoop]: 873 mSDtfsCounter, 808 mSDsluCounter, 1331 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 826 SdHoareTripleChecker+Valid, 2204 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:36:42,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [826 Valid, 2204 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 05:36:42,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52280 states. [2023-12-25 05:36:44,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52280 to 52280. [2023-12-25 05:36:44,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52280 states, 39952 states have (on average 1.5517120544653584) internal successors, (61994), 41266 states have internal predecessors, (61994), 9205 states have call successors, (9205), 3171 states have call predecessors, (9205), 3122 states have return successors, (24428), 9058 states have call predecessors, (24428), 9107 states have call successors, (24428) [2023-12-25 05:36:45,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52280 states to 52280 states and 95627 transitions. [2023-12-25 05:36:45,919 INFO L78 Accepts]: Start accepts. Automaton has 52280 states and 95627 transitions. Word has length 162 [2023-12-25 05:36:45,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:36:45,920 INFO L495 AbstractCegarLoop]: Abstraction has 52280 states and 95627 transitions. [2023-12-25 05:36:45,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-12-25 05:36:45,920 INFO L276 IsEmpty]: Start isEmpty. Operand 52280 states and 95627 transitions. [2023-12-25 05:36:45,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2023-12-25 05:36:45,922 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:36:45,922 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:36:45,930 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2023-12-25 05:36:46,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:36:46,130 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:36:46,130 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:36:46,130 INFO L85 PathProgramCache]: Analyzing trace with hash -1379004858, now seen corresponding path program 1 times [2023-12-25 05:36:46,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:36:46,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2087724964] [2023-12-25 05:36:46,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:36:46,131 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:36:46,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:36:46,132 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:36:46,133 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2023-12-25 05:36:46,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:36:46,406 INFO L262 TraceCheckSpWp]: Trace formula consists of 921 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:36:46,408 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:36:46,456 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2023-12-25 05:36:46,456 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:36:46,457 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:36:46,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2087724964] [2023-12-25 05:36:46,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2087724964] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:36:46,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:36:46,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:36:46,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822776030] [2023-12-25 05:36:46,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:36:46,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:36:46,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:36:46,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:36:46,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:36:46,461 INFO L87 Difference]: Start difference. First operand 52280 states and 95627 transitions. Second operand has 8 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 3 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-12-25 05:36:50,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:36:50,135 INFO L93 Difference]: Finished difference Result 102990 states and 185568 transitions. [2023-12-25 05:36:50,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:36:50,136 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 3 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 167 [2023-12-25 05:36:50,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:36:50,738 INFO L225 Difference]: With dead ends: 102990 [2023-12-25 05:36:50,738 INFO L226 Difference]: Without dead ends: 51940 [2023-12-25 05:36:51,074 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:36:51,075 INFO L413 NwaCegarLoop]: 889 mSDtfsCounter, 22 mSDsluCounter, 5311 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 6200 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:36:51,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 6200 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:36:51,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51940 states. [2023-12-25 05:36:53,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51940 to 50596. [2023-12-25 05:36:53,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50596 states, 38655 states have (on average 1.5602897425947484) internal successors, (60313), 39969 states have internal predecessors, (60313), 8962 states have call successors, (8962), 2979 states have call predecessors, (8962), 2978 states have return successors, (23043), 8863 states have call predecessors, (23043), 8912 states have call successors, (23043) [2023-12-25 05:36:54,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50596 states to 50596 states and 92318 transitions. [2023-12-25 05:36:54,148 INFO L78 Accepts]: Start accepts. Automaton has 50596 states and 92318 transitions. Word has length 167 [2023-12-25 05:36:54,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:36:54,148 INFO L495 AbstractCegarLoop]: Abstraction has 50596 states and 92318 transitions. [2023-12-25 05:36:54,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 3 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-12-25 05:36:54,149 INFO L276 IsEmpty]: Start isEmpty. Operand 50596 states and 92318 transitions. [2023-12-25 05:36:54,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2023-12-25 05:36:54,150 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:36:54,150 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:36:54,161 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 [2023-12-25 05:36:54,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:36:54,352 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:36:54,353 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:36:54,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1448652732, now seen corresponding path program 1 times [2023-12-25 05:36:54,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:36:54,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1276274904] [2023-12-25 05:36:54,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:36:54,354 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:36:54,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:36:54,355 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:36:54,387 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2023-12-25 05:36:54,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:36:54,662 INFO L262 TraceCheckSpWp]: Trace formula consists of 922 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:36:54,665 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:36:55,097 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-25 05:36:55,097 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:36:55,097 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:36:55,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1276274904] [2023-12-25 05:36:55,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1276274904] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:36:55,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:36:55,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:36:55,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390124359] [2023-12-25 05:36:55,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:36:55,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:36:55,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:36:55,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:36:55,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:36:55,099 INFO L87 Difference]: Start difference. First operand 50596 states and 92318 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-12-25 05:36:59,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:36:59,464 INFO L93 Difference]: Finished difference Result 105007 states and 191793 transitions. [2023-12-25 05:36:59,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:36:59,466 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 167 [2023-12-25 05:36:59,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:36:59,967 INFO L225 Difference]: With dead ends: 105007 [2023-12-25 05:36:59,967 INFO L226 Difference]: Without dead ends: 54423