/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_spec13_product24.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 17:18:25,874 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 17:18:25,946 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 17:18:25,950 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 17:18:25,951 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 17:18:25,975 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 17:18:25,975 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 17:18:25,975 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 17:18:25,976 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 17:18:25,979 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 17:18:25,979 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 17:18:25,979 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 17:18:25,980 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 17:18:25,981 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 17:18:25,981 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 17:18:25,981 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 17:18:25,981 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 17:18:25,981 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 17:18:25,982 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 17:18:25,982 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 17:18:25,982 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 17:18:25,982 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 17:18:25,982 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 17:18:25,982 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 17:18:25,983 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 17:18:25,983 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 17:18:25,983 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 17:18:25,983 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 17:18:25,983 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 17:18:25,983 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 17:18:25,984 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 17:18:25,984 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 17:18:25,984 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 17:18:25,984 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 17:18:25,984 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:18:25,985 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 17:18:25,985 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 17:18:25,985 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 17:18:25,985 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 17:18:25,985 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 17:18:25,985 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 17:18:25,985 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 17:18:25,985 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 17:18:25,986 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 17:18:25,986 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 17:18:25,986 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 17:18:25,986 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 17:18:26,202 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 17:18:26,226 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 17:18:26,228 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 17:18:26,229 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 17:18:26,229 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 17:18:26,231 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec13_product24.cil.c [2023-12-16 17:18:27,365 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 17:18:27,643 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 17:18:27,643 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec13_product24.cil.c [2023-12-16 17:18:27,666 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81a08688a/dcbacab8fff8470cb4add59366d70cb6/FLAG2f657179b [2023-12-16 17:18:27,679 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81a08688a/dcbacab8fff8470cb4add59366d70cb6 [2023-12-16 17:18:27,681 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 17:18:27,682 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 17:18:27,684 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 17:18:27,684 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 17:18:27,687 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 17:18:27,688 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:18:27" (1/1) ... [2023-12-16 17:18:27,689 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cd10054 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:18:27, skipping insertion in model container [2023-12-16 17:18:27,689 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:18:27" (1/1) ... [2023-12-16 17:18:27,747 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 17:18:28,137 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_spec13_product24.cil.c[51490,51503] [2023-12-16 17:18:28,179 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:18:28,190 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-16 17:18:28,200 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 17:18:28,287 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_spec13_product24.cil.c[51490,51503] [2023-12-16 17:18:28,318 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:18:28,341 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 17:18:28,349 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [48] [2023-12-16 17:18:28,352 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [414] [2023-12-16 17:18:28,352 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [434] [2023-12-16 17:18:28,352 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2095] [2023-12-16 17:18:28,352 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2449] [2023-12-16 17:18:28,352 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [2458] [2023-12-16 17:18:28,352 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [2549] [2023-12-16 17:18:28,352 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification13_spec.i","") [3210] [2023-12-16 17:18:28,352 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [3299] [2023-12-16 17:18:28,352 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [3417] [2023-12-16 17:18:28,444 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_spec13_product24.cil.c[51490,51503] [2023-12-16 17:18:28,455 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:18:28,473 INFO L206 MainTranslator]: Completed translation [2023-12-16 17:18:28,474 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:18:28 WrapperNode [2023-12-16 17:18:28,474 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 17:18:28,475 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 17:18:28,475 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 17:18:28,475 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 17:18:28,479 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:18:28" (1/1) ... [2023-12-16 17:18:28,529 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:18:28" (1/1) ... [2023-12-16 17:18:28,575 INFO L138 Inliner]: procedures = 98, calls = 352, calls flagged for inlining = 28, calls inlined = 24, statements flattened = 834 [2023-12-16 17:18:28,575 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 17:18:28,576 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 17:18:28,576 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 17:18:28,576 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 17:18:28,584 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:18:28" (1/1) ... [2023-12-16 17:18:28,584 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:18:28" (1/1) ... [2023-12-16 17:18:28,590 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:18:28" (1/1) ... [2023-12-16 17:18:28,611 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2023-12-16 17:18:28,611 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:18:28" (1/1) ... [2023-12-16 17:18:28,611 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:18:28" (1/1) ... [2023-12-16 17:18:28,641 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:18:28" (1/1) ... [2023-12-16 17:18:28,674 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:18:28" (1/1) ... [2023-12-16 17:18:28,693 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:18:28" (1/1) ... [2023-12-16 17:18:28,698 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:18:28" (1/1) ... [2023-12-16 17:18:28,710 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 17:18:28,711 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 17:18:28,711 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 17:18:28,711 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 17:18:28,715 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:18:28" (1/1) ... [2023-12-16 17:18:28,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:18:28,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 17:18:28,760 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 17:18:28,784 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 17:18:28,809 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2023-12-16 17:18:28,810 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2023-12-16 17:18:28,810 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2023-12-16 17:18:28,810 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2023-12-16 17:18:28,810 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-12-16 17:18:28,810 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-12-16 17:18:28,810 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-12-16 17:18:28,810 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-12-16 17:18:28,811 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-16 17:18:28,811 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-16 17:18:28,812 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-12-16 17:18:28,814 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-12-16 17:18:28,814 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-12-16 17:18:28,814 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-12-16 17:18:28,814 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2023-12-16 17:18:28,814 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2023-12-16 17:18:28,814 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2023-12-16 17:18:28,814 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2023-12-16 17:18:28,815 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-12-16 17:18:28,815 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-12-16 17:18:28,815 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-12-16 17:18:28,815 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-12-16 17:18:28,815 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2023-12-16 17:18:28,815 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2023-12-16 17:18:28,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 17:18:28,815 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2023-12-16 17:18:28,815 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2023-12-16 17:18:28,815 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-12-16 17:18:28,815 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-12-16 17:18:28,816 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2023-12-16 17:18:28,816 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2023-12-16 17:18:28,816 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2023-12-16 17:18:28,816 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2023-12-16 17:18:28,816 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-12-16 17:18:28,816 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-12-16 17:18:28,816 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-16 17:18:28,816 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-16 17:18:28,817 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-12-16 17:18:28,817 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-12-16 17:18:28,817 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-12-16 17:18:28,817 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-12-16 17:18:28,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 17:18:28,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-16 17:18:28,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-16 17:18:28,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-16 17:18:28,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-12-16 17:18:28,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2023-12-16 17:18:28,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2023-12-16 17:18:28,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2023-12-16 17:18:28,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2023-12-16 17:18:28,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2023-12-16 17:18:28,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2023-12-16 17:18:28,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2023-12-16 17:18:28,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12 [2023-12-16 17:18:28,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#13 [2023-12-16 17:18:28,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#14 [2023-12-16 17:18:28,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#15 [2023-12-16 17:18:28,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#16 [2023-12-16 17:18:28,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#17 [2023-12-16 17:18:28,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#18 [2023-12-16 17:18:28,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#19 [2023-12-16 17:18:28,821 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-12-16 17:18:28,821 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-12-16 17:18:28,821 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-12-16 17:18:28,821 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-12-16 17:18:28,822 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-12-16 17:18:28,822 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-12-16 17:18:28,822 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-12-16 17:18:28,822 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-12-16 17:18:28,822 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-12-16 17:18:28,822 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-12-16 17:18:28,823 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-12-16 17:18:28,823 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-12-16 17:18:28,823 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__weight [2023-12-16 17:18:28,823 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__weight [2023-12-16 17:18:28,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 17:18:28,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 17:18:28,823 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-12-16 17:18:28,823 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-12-16 17:18:28,823 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__executivefloor [2023-12-16 17:18:28,823 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__executivefloor [2023-12-16 17:18:29,019 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 17:18:29,022 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 17:18:30,232 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 17:18:30,293 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 17:18:30,293 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-12-16 17:18:30,293 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:18:30 BoogieIcfgContainer [2023-12-16 17:18:30,293 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 17:18:30,295 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 17:18:30,295 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 17:18:30,297 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 17:18:30,297 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 05:18:27" (1/3) ... [2023-12-16 17:18:30,298 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60de7998 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:18:30, skipping insertion in model container [2023-12-16 17:18:30,298 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:18:28" (2/3) ... [2023-12-16 17:18:30,298 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60de7998 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:18:30, skipping insertion in model container [2023-12-16 17:18:30,298 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:18:30" (3/3) ... [2023-12-16 17:18:30,299 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec13_product24.cil.c [2023-12-16 17:18:30,310 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 17:18:30,311 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 17:18:30,362 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 17:18:30,368 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;@316c669f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 17:18:30,368 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 17:18:30,376 INFO L276 IsEmpty]: Start isEmpty. Operand has 604 states, 463 states have (on average 1.7062634989200864) internal successors, (790), 483 states have internal predecessors, (790), 110 states have call successors, (110), 29 states have call predecessors, (110), 29 states have return successors, (110), 106 states have call predecessors, (110), 110 states have call successors, (110) [2023-12-16 17:18:30,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-16 17:18:30,394 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:18:30,394 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-16 17:18:30,395 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:18:30,400 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:18:30,400 INFO L85 PathProgramCache]: Analyzing trace with hash -1784768629, now seen corresponding path program 1 times [2023-12-16 17:18:30,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:18:30,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1434661165] [2023-12-16 17:18:30,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:18:30,412 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:18:30,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:18:30,414 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:18:30,430 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 17:18:30,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:18:30,786 INFO L262 TraceCheckSpWp]: Trace formula consists of 762 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:18:30,792 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:18:30,866 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-16 17:18:30,867 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:18:30,867 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:18:30,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1434661165] [2023-12-16 17:18:30,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1434661165] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:18:30,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:18:30,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:18:30,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765491357] [2023-12-16 17:18:30,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:18:30,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:18:30,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:18:30,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:18:30,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:18:30,908 INFO L87 Difference]: Start difference. First operand has 604 states, 463 states have (on average 1.7062634989200864) internal successors, (790), 483 states have internal predecessors, (790), 110 states have call successors, (110), 29 states have call predecessors, (110), 29 states have return successors, (110), 106 states have call predecessors, (110), 110 states have call successors, (110) Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 17:18:31,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:18:31,193 INFO L93 Difference]: Finished difference Result 1208 states and 2034 transitions. [2023-12-16 17:18:31,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:18:31,198 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 84 [2023-12-16 17:18:31,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:18:31,231 INFO L225 Difference]: With dead ends: 1208 [2023-12-16 17:18:31,237 INFO L226 Difference]: Without dead ends: 602 [2023-12-16 17:18:31,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:18:31,255 INFO L413 NwaCegarLoop]: 966 mSDtfsCounter, 15 mSDsluCounter, 1923 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2889 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:18:31,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2889 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:18:31,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2023-12-16 17:18:31,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 602. [2023-12-16 17:18:31,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 463 states have (on average 1.6781857451403888) internal successors, (777), 481 states have internal predecessors, (777), 110 states have call successors, (110), 30 states have call predecessors, (110), 28 states have return successors, (107), 104 states have call predecessors, (107), 107 states have call successors, (107) [2023-12-16 17:18:31,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 994 transitions. [2023-12-16 17:18:31,422 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 994 transitions. Word has length 84 [2023-12-16 17:18:31,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:18:31,422 INFO L495 AbstractCegarLoop]: Abstraction has 602 states and 994 transitions. [2023-12-16 17:18:31,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 17:18:31,423 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 994 transitions. [2023-12-16 17:18:31,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-16 17:18:31,431 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:18:31,432 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-16 17:18:31,460 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-16 17:18:31,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:18:31,644 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:18:31,645 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:18:31,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1925822373, now seen corresponding path program 1 times [2023-12-16 17:18:31,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:18:31,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1982618435] [2023-12-16 17:18:31,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:18:31,646 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:18:31,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:18:31,647 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:18:31,655 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 17:18:32,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:18:32,093 INFO L262 TraceCheckSpWp]: Trace formula consists of 764 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 17:18:32,098 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:18:32,166 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-12-16 17:18:32,167 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:18:32,167 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:18:32,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1982618435] [2023-12-16 17:18:32,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1982618435] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:18:32,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:18:32,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:18:32,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145846561] [2023-12-16 17:18:32,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:18:32,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:18:32,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:18:32,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:18:32,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:18:32,186 INFO L87 Difference]: Start difference. First operand 602 states and 994 transitions. Second operand has 7 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-16 17:18:32,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:18:32,518 INFO L93 Difference]: Finished difference Result 1212 states and 2004 transitions. [2023-12-16 17:18:32,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 17:18:32,518 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 86 [2023-12-16 17:18:32,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:18:32,538 INFO L225 Difference]: With dead ends: 1212 [2023-12-16 17:18:32,538 INFO L226 Difference]: Without dead ends: 615 [2023-12-16 17:18:32,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:18:32,542 INFO L413 NwaCegarLoop]: 961 mSDtfsCounter, 114 mSDsluCounter, 4705 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 5666 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 17:18:32,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 5666 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 17:18:32,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2023-12-16 17:18:32,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 614. [2023-12-16 17:18:32,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 614 states, 472 states have (on average 1.6758474576271187) internal successors, (791), 492 states have internal predecessors, (791), 111 states have call successors, (111), 30 states have call predecessors, (111), 30 states have return successors, (113), 105 states have call predecessors, (113), 108 states have call successors, (113) [2023-12-16 17:18:32,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 1015 transitions. [2023-12-16 17:18:32,583 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 1015 transitions. Word has length 86 [2023-12-16 17:18:32,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:18:32,583 INFO L495 AbstractCegarLoop]: Abstraction has 614 states and 1015 transitions. [2023-12-16 17:18:32,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-16 17:18:32,584 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 1015 transitions. [2023-12-16 17:18:32,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-16 17:18:32,586 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:18:32,586 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 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] [2023-12-16 17:18:32,602 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 (3)] Ended with exit code 0 [2023-12-16 17:18:32,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:18:32,799 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:18:32,799 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:18:32,799 INFO L85 PathProgramCache]: Analyzing trace with hash -1160837612, now seen corresponding path program 1 times [2023-12-16 17:18:32,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:18:32,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [136049802] [2023-12-16 17:18:32,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:18:32,801 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 [2023-12-16 17:18:32,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:18:32,804 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:18:32,805 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-16 17:18:33,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:18:33,148 INFO L262 TraceCheckSpWp]: Trace formula consists of 765 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 17:18:33,152 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:18:33,197 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-12-16 17:18:33,197 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:18:33,197 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:18:33,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [136049802] [2023-12-16 17:18:33,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [136049802] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:18:33,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:18:33,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:18:33,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595913759] [2023-12-16 17:18:33,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:18:33,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:18:33,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:18:33,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:18:33,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:18:33,199 INFO L87 Difference]: Start difference. First operand 614 states and 1015 transitions. Second operand has 7 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-16 17:18:33,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:18:33,513 INFO L93 Difference]: Finished difference Result 1230 states and 2035 transitions. [2023-12-16 17:18:33,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 17:18:33,513 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 87 [2023-12-16 17:18:33,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:18:33,518 INFO L225 Difference]: With dead ends: 1230 [2023-12-16 17:18:33,518 INFO L226 Difference]: Without dead ends: 623 [2023-12-16 17:18:33,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:18:33,522 INFO L413 NwaCegarLoop]: 971 mSDtfsCounter, 101 mSDsluCounter, 4735 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 5706 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:18:33,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 5706 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:18:33,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2023-12-16 17:18:33,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 614. [2023-12-16 17:18:33,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 614 states, 472 states have (on average 1.6758474576271187) internal successors, (791), 492 states have internal predecessors, (791), 111 states have call successors, (111), 30 states have call predecessors, (111), 30 states have return successors, (113), 105 states have call predecessors, (113), 108 states have call successors, (113) [2023-12-16 17:18:33,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 1015 transitions. [2023-12-16 17:18:33,549 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 1015 transitions. Word has length 87 [2023-12-16 17:18:33,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:18:33,549 INFO L495 AbstractCegarLoop]: Abstraction has 614 states and 1015 transitions. [2023-12-16 17:18:33,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-16 17:18:33,550 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 1015 transitions. [2023-12-16 17:18:33,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-16 17:18:33,552 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:18:33,552 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-16 17:18:33,572 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-12-16 17:18:33,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:18:33,774 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:18:33,774 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:18:33,775 INFO L85 PathProgramCache]: Analyzing trace with hash -201963670, now seen corresponding path program 1 times [2023-12-16 17:18:33,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:18:33,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2067211324] [2023-12-16 17:18:33,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:18:33,776 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:18:33,776 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:18:33,793 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:18:33,832 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-16 17:18:34,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:18:34,121 INFO L262 TraceCheckSpWp]: Trace formula consists of 765 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:18:34,124 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:18:34,152 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-16 17:18:34,152 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:18:34,153 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:18:34,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2067211324] [2023-12-16 17:18:34,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2067211324] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:18:34,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:18:34,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:18:34,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564365511] [2023-12-16 17:18:34,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:18:34,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:18:34,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:18:34,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:18:34,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:18:34,157 INFO L87 Difference]: Start difference. First operand 614 states and 1015 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 17:18:34,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:18:34,312 INFO L93 Difference]: Finished difference Result 1224 states and 2024 transitions. [2023-12-16 17:18:34,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:18:34,313 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 87 [2023-12-16 17:18:34,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:18:34,318 INFO L225 Difference]: With dead ends: 1224 [2023-12-16 17:18:34,318 INFO L226 Difference]: Without dead ends: 615 [2023-12-16 17:18:34,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:18:34,323 INFO L413 NwaCegarLoop]: 960 mSDtfsCounter, 22 mSDsluCounter, 1911 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 2871 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:18:34,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 2871 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:18:34,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2023-12-16 17:18:34,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 615. [2023-12-16 17:18:34,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 615 states, 474 states have (on average 1.6751054852320675) internal successors, (794), 493 states have internal predecessors, (794), 110 states have call successors, (110), 31 states have call predecessors, (110), 30 states have return successors, (109), 104 states have call predecessors, (109), 107 states have call successors, (109) [2023-12-16 17:18:34,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 1013 transitions. [2023-12-16 17:18:34,349 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 1013 transitions. Word has length 87 [2023-12-16 17:18:34,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:18:34,349 INFO L495 AbstractCegarLoop]: Abstraction has 615 states and 1013 transitions. [2023-12-16 17:18:34,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 17:18:34,350 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 1013 transitions. [2023-12-16 17:18:34,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-16 17:18:34,352 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:18:34,352 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:18:34,364 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-16 17:18:34,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:18:34,564 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:18:34,564 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:18:34,564 INFO L85 PathProgramCache]: Analyzing trace with hash 380160399, now seen corresponding path program 1 times [2023-12-16 17:18:34,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:18:34,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1446739311] [2023-12-16 17:18:34,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:18:34,565 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:18:34,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:18:34,577 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:18:34,622 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-16 17:18:34,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:18:34,880 INFO L262 TraceCheckSpWp]: Trace formula consists of 644 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 17:18:34,883 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:18:34,944 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-16 17:18:34,944 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:18:34,944 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:18:34,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1446739311] [2023-12-16 17:18:34,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1446739311] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:18:34,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:18:34,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:18:34,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815514749] [2023-12-16 17:18:34,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:18:34,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:18:34,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:18:34,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:18:34,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:18:34,946 INFO L87 Difference]: Start difference. First operand 615 states and 1013 transitions. Second operand has 7 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-16 17:18:35,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:18:35,230 INFO L93 Difference]: Finished difference Result 1228 states and 2028 transitions. [2023-12-16 17:18:35,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 17:18:35,231 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 77 [2023-12-16 17:18:35,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:18:35,234 INFO L225 Difference]: With dead ends: 1228 [2023-12-16 17:18:35,234 INFO L226 Difference]: Without dead ends: 623 [2023-12-16 17:18:35,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:18:35,238 INFO L413 NwaCegarLoop]: 971 mSDtfsCounter, 100 mSDsluCounter, 4734 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 5705 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:18:35,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 5705 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:18:35,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2023-12-16 17:18:35,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 615. [2023-12-16 17:18:35,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 615 states, 474 states have (on average 1.6751054852320675) internal successors, (794), 493 states have internal predecessors, (794), 110 states have call successors, (110), 31 states have call predecessors, (110), 30 states have return successors, (109), 104 states have call predecessors, (109), 107 states have call successors, (109) [2023-12-16 17:18:35,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 1013 transitions. [2023-12-16 17:18:35,255 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 1013 transitions. Word has length 77 [2023-12-16 17:18:35,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:18:35,255 INFO L495 AbstractCegarLoop]: Abstraction has 615 states and 1013 transitions. [2023-12-16 17:18:35,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-16 17:18:35,255 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 1013 transitions. [2023-12-16 17:18:35,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-16 17:18:35,257 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:18:35,257 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:18:35,279 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-16 17:18:35,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:18:35,466 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:18:35,466 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:18:35,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1340527562, now seen corresponding path program 1 times [2023-12-16 17:18:35,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:18:35,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [428076691] [2023-12-16 17:18:35,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:18:35,467 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:18:35,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:18:35,472 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:18:35,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-16 17:18:35,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:18:35,744 INFO L262 TraceCheckSpWp]: Trace formula consists of 645 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:18:35,747 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:18:35,778 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-16 17:18:35,778 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:18:35,779 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:18:35,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [428076691] [2023-12-16 17:18:35,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [428076691] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:18:35,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:18:35,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:18:35,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120307672] [2023-12-16 17:18:35,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:18:35,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:18:35,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:18:35,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:18:35,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:18:35,781 INFO L87 Difference]: Start difference. First operand 615 states and 1013 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-16 17:18:36,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:18:36,010 INFO L93 Difference]: Finished difference Result 1247 states and 2065 transitions. [2023-12-16 17:18:36,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:18:36,011 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 78 [2023-12-16 17:18:36,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:18:36,016 INFO L225 Difference]: With dead ends: 1247 [2023-12-16 17:18:36,016 INFO L226 Difference]: Without dead ends: 642 [2023-12-16 17:18:36,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:18:36,020 INFO L413 NwaCegarLoop]: 922 mSDtfsCounter, 110 mSDsluCounter, 1795 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 2717 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:18:36,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 2717 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:18:36,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2023-12-16 17:18:36,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 634. [2023-12-16 17:18:36,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 634 states, 492 states have (on average 1.670731707317073) internal successors, (822), 511 states have internal predecessors, (822), 110 states have call successors, (110), 32 states have call predecessors, (110), 31 states have return successors, (108), 104 states have call predecessors, (108), 107 states have call successors, (108) [2023-12-16 17:18:36,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 1040 transitions. [2023-12-16 17:18:36,043 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 1040 transitions. Word has length 78 [2023-12-16 17:18:36,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:18:36,043 INFO L495 AbstractCegarLoop]: Abstraction has 634 states and 1040 transitions. [2023-12-16 17:18:36,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-16 17:18:36,044 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 1040 transitions. [2023-12-16 17:18:36,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-16 17:18:36,045 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:18:36,046 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:18:36,053 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-16 17:18:36,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:18:36,254 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:18:36,254 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:18:36,254 INFO L85 PathProgramCache]: Analyzing trace with hash 2010604249, now seen corresponding path program 1 times [2023-12-16 17:18:36,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:18:36,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [514238123] [2023-12-16 17:18:36,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:18:36,255 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:18:36,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:18:36,265 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:18:36,280 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-16 17:18:36,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:18:36,502 INFO L262 TraceCheckSpWp]: Trace formula consists of 645 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 17:18:36,505 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:18:36,578 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-16 17:18:36,578 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:18:36,578 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:18:36,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [514238123] [2023-12-16 17:18:36,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [514238123] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:18:36,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:18:36,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:18:36,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210843389] [2023-12-16 17:18:36,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:18:36,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:18:36,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:18:36,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:18:36,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:18:36,580 INFO L87 Difference]: Start difference. First operand 634 states and 1040 transitions. Second operand has 7 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-16 17:18:36,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:18:36,913 INFO L93 Difference]: Finished difference Result 1274 states and 2094 transitions. [2023-12-16 17:18:36,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 17:18:36,913 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 79 [2023-12-16 17:18:36,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:18:36,917 INFO L225 Difference]: With dead ends: 1274 [2023-12-16 17:18:36,917 INFO L226 Difference]: Without dead ends: 650 [2023-12-16 17:18:36,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:18:36,921 INFO L413 NwaCegarLoop]: 961 mSDtfsCounter, 149 mSDsluCounter, 4668 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 5629 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 17:18:36,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 5629 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 17:18:36,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2023-12-16 17:18:36,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 634. [2023-12-16 17:18:36,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 634 states, 492 states have (on average 1.670731707317073) internal successors, (822), 511 states have internal predecessors, (822), 110 states have call successors, (110), 32 states have call predecessors, (110), 31 states have return successors, (108), 104 states have call predecessors, (108), 107 states have call successors, (108) [2023-12-16 17:18:36,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 1040 transitions. [2023-12-16 17:18:36,939 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 1040 transitions. Word has length 79 [2023-12-16 17:18:36,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:18:36,939 INFO L495 AbstractCegarLoop]: Abstraction has 634 states and 1040 transitions. [2023-12-16 17:18:36,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-16 17:18:36,939 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 1040 transitions. [2023-12-16 17:18:36,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-16 17:18:36,940 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:18:36,941 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:18:36,962 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-16 17:18:37,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:18:37,148 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:18:37,148 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:18:37,148 INFO L85 PathProgramCache]: Analyzing trace with hash 966606686, now seen corresponding path program 1 times [2023-12-16 17:18:37,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:18:37,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1147158411] [2023-12-16 17:18:37,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:18:37,149 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:18:37,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:18:37,169 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:18:37,227 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-16 17:18:37,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:18:37,485 INFO L262 TraceCheckSpWp]: Trace formula consists of 647 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 17:18:37,487 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:18:37,579 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-16 17:18:37,579 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:18:37,579 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:18:37,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1147158411] [2023-12-16 17:18:37,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1147158411] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:18:37,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:18:37,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 17:18:37,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578204073] [2023-12-16 17:18:37,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:18:37,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 17:18:37,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:18:37,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 17:18:37,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:18:37,581 INFO L87 Difference]: Start difference. First operand 634 states and 1040 transitions. Second operand has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-16 17:18:37,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:18:37,835 INFO L93 Difference]: Finished difference Result 1268 states and 2084 transitions. [2023-12-16 17:18:37,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 17:18:37,836 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 80 [2023-12-16 17:18:37,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:18:37,840 INFO L225 Difference]: With dead ends: 1268 [2023-12-16 17:18:37,840 INFO L226 Difference]: Without dead ends: 644 [2023-12-16 17:18:37,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:18:37,844 INFO L413 NwaCegarLoop]: 951 mSDtfsCounter, 103 mSDsluCounter, 5611 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 6562 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:18:37,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 6562 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:18:37,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2023-12-16 17:18:37,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 638. [2023-12-16 17:18:37,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 496 states have (on average 1.6653225806451613) internal successors, (826), 515 states have internal predecessors, (826), 110 states have call successors, (110), 32 states have call predecessors, (110), 31 states have return successors, (108), 104 states have call predecessors, (108), 107 states have call successors, (108) [2023-12-16 17:18:37,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 1044 transitions. [2023-12-16 17:18:37,895 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 1044 transitions. Word has length 80 [2023-12-16 17:18:37,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:18:37,895 INFO L495 AbstractCegarLoop]: Abstraction has 638 states and 1044 transitions. [2023-12-16 17:18:37,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-16 17:18:37,896 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 1044 transitions. [2023-12-16 17:18:37,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-16 17:18:37,897 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:18:37,898 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 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] [2023-12-16 17:18:37,913 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2023-12-16 17:18:38,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:18:38,106 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:18:38,107 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:18:38,107 INFO L85 PathProgramCache]: Analyzing trace with hash 302302568, now seen corresponding path program 1 times [2023-12-16 17:18:38,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:18:38,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [540754258] [2023-12-16 17:18:38,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:18:38,107 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:18:38,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:18:38,109 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:18:38,110 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-16 17:18:38,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:18:38,390 INFO L262 TraceCheckSpWp]: Trace formula consists of 771 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 17:18:38,392 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:18:38,460 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-12-16 17:18:38,460 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:18:38,460 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:18:38,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [540754258] [2023-12-16 17:18:38,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [540754258] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:18:38,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:18:38,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 17:18:38,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783685509] [2023-12-16 17:18:38,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:18:38,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 17:18:38,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:18:38,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 17:18:38,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:18:38,461 INFO L87 Difference]: Start difference. First operand 638 states and 1044 transitions. Second operand has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-16 17:18:38,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:18:38,833 INFO L93 Difference]: Finished difference Result 1278 states and 2096 transitions. [2023-12-16 17:18:38,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 17:18:38,834 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 93 [2023-12-16 17:18:38,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:18:38,838 INFO L225 Difference]: With dead ends: 1278 [2023-12-16 17:18:38,838 INFO L226 Difference]: Without dead ends: 650 [2023-12-16 17:18:38,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:18:38,844 INFO L413 NwaCegarLoop]: 951 mSDtfsCounter, 102 mSDsluCounter, 5611 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 6562 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 17:18:38,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 6562 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 17:18:38,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2023-12-16 17:18:38,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 644. [2023-12-16 17:18:38,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 644 states, 502 states have (on average 1.657370517928287) internal successors, (832), 521 states have internal predecessors, (832), 110 states have call successors, (110), 32 states have call predecessors, (110), 31 states have return successors, (108), 104 states have call predecessors, (108), 107 states have call successors, (108) [2023-12-16 17:18:38,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 1050 transitions. [2023-12-16 17:18:38,866 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 1050 transitions. Word has length 93 [2023-12-16 17:18:38,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:18:38,866 INFO L495 AbstractCegarLoop]: Abstraction has 644 states and 1050 transitions. [2023-12-16 17:18:38,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-16 17:18:38,866 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 1050 transitions. [2023-12-16 17:18:38,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-16 17:18:38,868 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:18:38,868 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:18:38,897 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-16 17:18:39,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:18:39,081 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:18:39,085 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:18:39,085 INFO L85 PathProgramCache]: Analyzing trace with hash 437543129, now seen corresponding path program 1 times [2023-12-16 17:18:39,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:18:39,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1593152324] [2023-12-16 17:18:39,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:18:39,086 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:18:39,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:18:39,087 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:18:39,088 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-16 17:18:39,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:18:39,353 INFO L262 TraceCheckSpWp]: Trace formula consists of 649 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 17:18:39,356 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:18:39,426 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-16 17:18:39,426 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:18:39,426 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:18:39,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1593152324] [2023-12-16 17:18:39,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1593152324] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:18:39,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:18:39,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 17:18:39,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758992954] [2023-12-16 17:18:39,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:18:39,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 17:18:39,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:18:39,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 17:18:39,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:18:39,428 INFO L87 Difference]: Start difference. First operand 644 states and 1050 transitions. Second operand has 8 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-16 17:18:39,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:18:39,746 INFO L93 Difference]: Finished difference Result 1292 states and 2112 transitions. [2023-12-16 17:18:39,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 17:18:39,747 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 82 [2023-12-16 17:18:39,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:18:39,750 INFO L225 Difference]: With dead ends: 1292 [2023-12-16 17:18:39,750 INFO L226 Difference]: Without dead ends: 658 [2023-12-16 17:18:39,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:18:39,752 INFO L413 NwaCegarLoop]: 951 mSDtfsCounter, 102 mSDsluCounter, 5611 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 6562 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 17:18:39,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 6562 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 17:18:39,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2023-12-16 17:18:39,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 652. [2023-12-16 17:18:39,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 652 states, 510 states have (on average 1.6470588235294117) internal successors, (840), 529 states have internal predecessors, (840), 110 states have call successors, (110), 32 states have call predecessors, (110), 31 states have return successors, (108), 104 states have call predecessors, (108), 107 states have call successors, (108) [2023-12-16 17:18:39,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 1058 transitions. [2023-12-16 17:18:39,769 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 1058 transitions. Word has length 82 [2023-12-16 17:18:39,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:18:39,769 INFO L495 AbstractCegarLoop]: Abstraction has 652 states and 1058 transitions. [2023-12-16 17:18:39,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-16 17:18:39,769 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 1058 transitions. [2023-12-16 17:18:39,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-16 17:18:39,770 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:18:39,770 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 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] [2023-12-16 17:18:39,793 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-16 17:18:39,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:18:39,977 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:18:39,978 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:18:39,978 INFO L85 PathProgramCache]: Analyzing trace with hash 266657539, now seen corresponding path program 1 times [2023-12-16 17:18:39,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:18:39,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [604865442] [2023-12-16 17:18:39,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:18:39,979 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:18:39,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:18:39,980 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:18:40,013 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-16 17:18:40,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:18:40,265 INFO L262 TraceCheckSpWp]: Trace formula consists of 773 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 17:18:40,267 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:18:40,335 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-12-16 17:18:40,335 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:18:40,335 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:18:40,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [604865442] [2023-12-16 17:18:40,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [604865442] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:18:40,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:18:40,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:18:40,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496708928] [2023-12-16 17:18:40,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:18:40,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:18:40,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:18:40,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:18:40,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:18:40,337 INFO L87 Difference]: Start difference. First operand 652 states and 1058 transitions. Second operand has 7 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-16 17:18:40,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:18:40,563 INFO L93 Difference]: Finished difference Result 1228 states and 1990 transitions. [2023-12-16 17:18:40,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 17:18:40,563 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 95 [2023-12-16 17:18:40,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:18:40,567 INFO L225 Difference]: With dead ends: 1228 [2023-12-16 17:18:40,567 INFO L226 Difference]: Without dead ends: 662 [2023-12-16 17:18:40,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:18:40,570 INFO L413 NwaCegarLoop]: 963 mSDtfsCounter, 96 mSDsluCounter, 4715 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 5678 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:18:40,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 5678 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:18:40,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2023-12-16 17:18:40,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 658. [2023-12-16 17:18:40,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 658 states, 513 states have (on average 1.6432748538011697) internal successors, (843), 534 states have internal predecessors, (843), 111 states have call successors, (111), 32 states have call predecessors, (111), 33 states have return successors, (112), 105 states have call predecessors, (112), 108 states have call successors, (112) [2023-12-16 17:18:40,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 1066 transitions. [2023-12-16 17:18:40,592 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 1066 transitions. Word has length 95 [2023-12-16 17:18:40,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:18:40,592 INFO L495 AbstractCegarLoop]: Abstraction has 658 states and 1066 transitions. [2023-12-16 17:18:40,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-16 17:18:40,592 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 1066 transitions. [2023-12-16 17:18:40,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-16 17:18:40,594 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:18:40,594 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:18:40,604 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 (12)] Ended with exit code 0 [2023-12-16 17:18:40,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:18:40,804 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:18:40,805 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:18:40,805 INFO L85 PathProgramCache]: Analyzing trace with hash 670388401, now seen corresponding path program 1 times [2023-12-16 17:18:40,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:18:40,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [278608629] [2023-12-16 17:18:40,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:18:40,805 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:18:40,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:18:40,808 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:18:40,818 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 (13)] Waiting until timeout for monitored process [2023-12-16 17:18:41,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:18:41,096 INFO L262 TraceCheckSpWp]: Trace formula consists of 651 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:18:41,098 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:18:41,121 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-16 17:18:41,122 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:18:41,122 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:18:41,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [278608629] [2023-12-16 17:18:41,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [278608629] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:18:41,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:18:41,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:18:41,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623757948] [2023-12-16 17:18:41,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:18:41,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:18:41,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:18:41,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:18:41,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:18:41,124 INFO L87 Difference]: Start difference. First operand 658 states and 1066 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-16 17:18:41,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:18:41,234 INFO L93 Difference]: Finished difference Result 1290 states and 2093 transitions. [2023-12-16 17:18:41,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:18:41,235 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 84 [2023-12-16 17:18:41,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:18:41,240 INFO L225 Difference]: With dead ends: 1290 [2023-12-16 17:18:41,240 INFO L226 Difference]: Without dead ends: 641 [2023-12-16 17:18:41,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:18:41,243 INFO L413 NwaCegarLoop]: 959 mSDtfsCounter, 24 mSDsluCounter, 1911 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 2870 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:18:41,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 2870 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:18:41,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2023-12-16 17:18:41,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 641. [2023-12-16 17:18:41,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 499 states have (on average 1.6372745490981964) internal successors, (817), 518 states have internal predecessors, (817), 110 states have call successors, (110), 32 states have call predecessors, (110), 31 states have return successors, (108), 104 states have call predecessors, (108), 107 states have call successors, (108) [2023-12-16 17:18:41,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 1035 transitions. [2023-12-16 17:18:41,264 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 1035 transitions. Word has length 84 [2023-12-16 17:18:41,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:18:41,264 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 1035 transitions. [2023-12-16 17:18:41,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-16 17:18:41,264 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 1035 transitions. [2023-12-16 17:18:41,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-16 17:18:41,266 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:18:41,266 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 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] [2023-12-16 17:18:41,278 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-16 17:18:41,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:18:41,475 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:18:41,475 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:18:41,475 INFO L85 PathProgramCache]: Analyzing trace with hash -1969094695, now seen corresponding path program 1 times [2023-12-16 17:18:41,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:18:41,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [659285984] [2023-12-16 17:18:41,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:18:41,476 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:18:41,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:18:41,479 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:18:41,482 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-16 17:18:41,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:18:41,843 INFO L262 TraceCheckSpWp]: Trace formula consists of 775 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 17:18:41,846 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:18:41,909 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-12-16 17:18:41,909 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:18:41,909 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:18:41,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [659285984] [2023-12-16 17:18:41,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [659285984] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:18:41,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:18:41,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:18:41,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211449751] [2023-12-16 17:18:41,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:18:41,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:18:41,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:18:41,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:18:41,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:18:41,911 INFO L87 Difference]: Start difference. First operand 641 states and 1035 transitions. Second operand has 7 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-16 17:18:42,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:18:42,173 INFO L93 Difference]: Finished difference Result 1211 states and 1958 transitions. [2023-12-16 17:18:42,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 17:18:42,174 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, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 97 [2023-12-16 17:18:42,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:18:42,177 INFO L225 Difference]: With dead ends: 1211 [2023-12-16 17:18:42,178 INFO L226 Difference]: Without dead ends: 634 [2023-12-16 17:18:42,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:18:42,182 INFO L413 NwaCegarLoop]: 943 mSDtfsCounter, 85 mSDsluCounter, 4629 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 5572 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:18:42,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 5572 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:18:42,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2023-12-16 17:18:42,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 632. [2023-12-16 17:18:42,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 632 states, 490 states have (on average 1.6346938775510205) internal successors, (801), 509 states have internal predecessors, (801), 110 states have call successors, (110), 32 states have call predecessors, (110), 31 states have return successors, (108), 104 states have call predecessors, (108), 107 states have call successors, (108) [2023-12-16 17:18:42,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632 states to 632 states and 1019 transitions. [2023-12-16 17:18:42,202 INFO L78 Accepts]: Start accepts. Automaton has 632 states and 1019 transitions. Word has length 97 [2023-12-16 17:18:42,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:18:42,203 INFO L495 AbstractCegarLoop]: Abstraction has 632 states and 1019 transitions. [2023-12-16 17:18:42,203 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, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-16 17:18:42,203 INFO L276 IsEmpty]: Start isEmpty. Operand 632 states and 1019 transitions. [2023-12-16 17:18:42,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-16 17:18:42,205 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:18:42,205 INFO L195 NwaCegarLoop]: trace histogram [2, 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] [2023-12-16 17:18:42,228 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-16 17:18:42,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:18:42,431 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:18:42,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:18:42,431 INFO L85 PathProgramCache]: Analyzing trace with hash -29502002, now seen corresponding path program 1 times [2023-12-16 17:18:42,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:18:42,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [10002238] [2023-12-16 17:18:42,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:18:42,432 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:18:42,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:18:42,451 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:18:42,452 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-16 17:18:42,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:18:42,770 INFO L262 TraceCheckSpWp]: Trace formula consists of 651 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 17:18:42,772 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:18:42,868 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-16 17:18:42,868 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:18:42,869 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:18:42,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [10002238] [2023-12-16 17:18:42,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [10002238] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:18:42,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:18:42,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:18:42,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521567700] [2023-12-16 17:18:42,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:18:42,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:18:42,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:18:42,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:18:42,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:18:42,870 INFO L87 Difference]: Start difference. First operand 632 states and 1019 transitions. Second operand has 7 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-16 17:18:43,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:18:43,096 INFO L93 Difference]: Finished difference Result 1202 states and 1942 transitions. [2023-12-16 17:18:43,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 17:18:43,097 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 85 [2023-12-16 17:18:43,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:18:43,100 INFO L225 Difference]: With dead ends: 1202 [2023-12-16 17:18:43,100 INFO L226 Difference]: Without dead ends: 621 [2023-12-16 17:18:43,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:18:43,102 INFO L413 NwaCegarLoop]: 935 mSDtfsCounter, 97 mSDsluCounter, 4573 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 5508 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:18:43,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 5508 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:18:43,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2023-12-16 17:18:43,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 619. [2023-12-16 17:18:43,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 619 states, 477 states have (on average 1.6184486373165619) internal successors, (772), 496 states have internal predecessors, (772), 110 states have call successors, (110), 32 states have call predecessors, (110), 31 states have return successors, (107), 104 states have call predecessors, (107), 107 states have call successors, (107) [2023-12-16 17:18:43,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 989 transitions. [2023-12-16 17:18:43,120 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 989 transitions. Word has length 85 [2023-12-16 17:18:43,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:18:43,122 INFO L495 AbstractCegarLoop]: Abstraction has 619 states and 989 transitions. [2023-12-16 17:18:43,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-16 17:18:43,122 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 989 transitions. [2023-12-16 17:18:43,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-16 17:18:43,124 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:18:43,124 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 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] [2023-12-16 17:18:43,147 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-12-16 17:18:43,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:18:43,332 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:18:43,332 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:18:43,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1939389707, now seen corresponding path program 1 times [2023-12-16 17:18:43,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:18:43,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [983175148] [2023-12-16 17:18:43,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:18:43,333 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:18:43,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:18:43,334 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:18:43,370 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-16 17:18:43,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:18:43,557 INFO L262 TraceCheckSpWp]: Trace formula consists of 654 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:18:43,559 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:18:43,602 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-16 17:18:43,602 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:18:43,602 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:18:43,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [983175148] [2023-12-16 17:18:43,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [983175148] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:18:43,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:18:43,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:18:43,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951980052] [2023-12-16 17:18:43,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:18:43,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:18:43,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:18:43,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:18:43,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:18:43,605 INFO L87 Difference]: Start difference. First operand 619 states and 989 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-16 17:18:43,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:18:43,767 INFO L93 Difference]: Finished difference Result 1251 states and 1997 transitions. [2023-12-16 17:18:43,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:18:43,767 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 87 [2023-12-16 17:18:43,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:18:43,771 INFO L225 Difference]: With dead ends: 1251 [2023-12-16 17:18:43,771 INFO L226 Difference]: Without dead ends: 619 [2023-12-16 17:18:43,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:18:43,773 INFO L413 NwaCegarLoop]: 904 mSDtfsCounter, 74 mSDsluCounter, 1781 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 2685 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:18:43,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 2685 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:18:43,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2023-12-16 17:18:43,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 619. [2023-12-16 17:18:43,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 619 states, 477 states have (on average 1.60167714884696) internal successors, (764), 495 states have internal predecessors, (764), 110 states have call successors, (110), 33 states have call predecessors, (110), 31 states have return successors, (107), 104 states have call predecessors, (107), 107 states have call successors, (107) [2023-12-16 17:18:43,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 981 transitions. [2023-12-16 17:18:43,789 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 981 transitions. Word has length 87 [2023-12-16 17:18:43,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:18:43,790 INFO L495 AbstractCegarLoop]: Abstraction has 619 states and 981 transitions. [2023-12-16 17:18:43,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-16 17:18:43,790 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 981 transitions. [2023-12-16 17:18:43,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-16 17:18:43,791 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:18:43,791 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 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] [2023-12-16 17:18:43,815 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2023-12-16 17:18:43,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:18:43,997 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:18:43,997 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:18:43,997 INFO L85 PathProgramCache]: Analyzing trace with hash -813574546, now seen corresponding path program 1 times [2023-12-16 17:18:43,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:18:43,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [280932567] [2023-12-16 17:18:43,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:18:43,998 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:18:43,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:18:43,999 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:18:44,001 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-16 17:18:44,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:18:44,254 INFO L262 TraceCheckSpWp]: Trace formula consists of 655 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 17:18:44,256 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:18:44,470 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-16 17:18:44,472 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:18:44,472 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:18:44,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [280932567] [2023-12-16 17:18:44,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [280932567] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:18:44,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:18:44,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:18:44,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637615110] [2023-12-16 17:18:44,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:18:44,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:18:44,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:18:44,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:18:44,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:18:44,473 INFO L87 Difference]: Start difference. First operand 619 states and 981 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-16 17:18:44,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:18:44,762 INFO L93 Difference]: Finished difference Result 1741 states and 2821 transitions. [2023-12-16 17:18:44,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:18:44,763 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 88 [2023-12-16 17:18:44,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:18:44,769 INFO L225 Difference]: With dead ends: 1741 [2023-12-16 17:18:44,769 INFO L226 Difference]: Without dead ends: 1179 [2023-12-16 17:18:44,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:18:44,771 INFO L413 NwaCegarLoop]: 925 mSDtfsCounter, 877 mSDsluCounter, 867 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 877 SdHoareTripleChecker+Valid, 1792 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:18:44,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [877 Valid, 1792 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:18:44,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1179 states. [2023-12-16 17:18:44,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1179 to 1114. [2023-12-16 17:18:44,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1114 states, 868 states have (on average 1.6232718894009217) internal successors, (1409), 895 states have internal predecessors, (1409), 192 states have call successors, (192), 56 states have call predecessors, (192), 53 states have return successors, (195), 177 states have call predecessors, (195), 188 states have call successors, (195) [2023-12-16 17:18:44,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1114 states to 1114 states and 1796 transitions. [2023-12-16 17:18:44,811 INFO L78 Accepts]: Start accepts. Automaton has 1114 states and 1796 transitions. Word has length 88 [2023-12-16 17:18:44,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:18:44,811 INFO L495 AbstractCegarLoop]: Abstraction has 1114 states and 1796 transitions. [2023-12-16 17:18:44,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-16 17:18:44,811 INFO L276 IsEmpty]: Start isEmpty. Operand 1114 states and 1796 transitions. [2023-12-16 17:18:44,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2023-12-16 17:18:44,815 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:18:44,815 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-16 17:18:44,824 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2023-12-16 17:18:45,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:18:45,021 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:18:45,021 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:18:45,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1644578439, now seen corresponding path program 1 times [2023-12-16 17:18:45,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:18:45,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [324513966] [2023-12-16 17:18:45,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:18:45,022 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:18:45,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:18:45,023 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:18:45,025 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-16 17:18:45,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:18:45,425 INFO L262 TraceCheckSpWp]: Trace formula consists of 1158 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:18:45,429 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:18:45,515 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-16 17:18:45,515 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:18:45,515 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:18:45,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [324513966] [2023-12-16 17:18:45,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [324513966] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:18:45,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:18:45,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 17:18:45,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378602061] [2023-12-16 17:18:45,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:18:45,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 17:18:45,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:18:45,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 17:18:45,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:18:45,516 INFO L87 Difference]: Start difference. First operand 1114 states and 1796 transitions. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 5 states have call successors, (29), 4 states have call predecessors, (29), 4 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) [2023-12-16 17:18:49,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:18:49,649 INFO L93 Difference]: Finished difference Result 3876 states and 6330 transitions. [2023-12-16 17:18:49,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 17:18:49,650 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 5 states have call successors, (29), 4 states have call predecessors, (29), 4 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) Word has length 200 [2023-12-16 17:18:49,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:18:49,660 INFO L225 Difference]: With dead ends: 3876 [2023-12-16 17:18:49,661 INFO L226 Difference]: Without dead ends: 2819 [2023-12-16 17:18:49,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2023-12-16 17:18:49,665 INFO L413 NwaCegarLoop]: 633 mSDtfsCounter, 2194 mSDsluCounter, 984 mSDsCounter, 0 mSdLazyCounter, 4515 mSolverCounterSat, 723 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2300 SdHoareTripleChecker+Valid, 1617 SdHoareTripleChecker+Invalid, 5238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 723 IncrementalHoareTripleChecker+Valid, 4515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-12-16 17:18:49,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2300 Valid, 1617 Invalid, 5238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [723 Valid, 4515 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-12-16 17:18:49,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2819 states. [2023-12-16 17:18:49,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2819 to 2745. [2023-12-16 17:18:49,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2745 states, 2048 states have (on average 1.5703125) internal successors, (3216), 2114 states have internal predecessors, (3216), 575 states have call successors, (575), 114 states have call predecessors, (575), 121 states have return successors, (656), 554 states have call predecessors, (656), 569 states have call successors, (656) [2023-12-16 17:18:49,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2745 states to 2745 states and 4447 transitions. [2023-12-16 17:18:49,781 INFO L78 Accepts]: Start accepts. Automaton has 2745 states and 4447 transitions. Word has length 200 [2023-12-16 17:18:49,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:18:49,782 INFO L495 AbstractCegarLoop]: Abstraction has 2745 states and 4447 transitions. [2023-12-16 17:18:49,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 5 states have call successors, (29), 4 states have call predecessors, (29), 4 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) [2023-12-16 17:18:49,782 INFO L276 IsEmpty]: Start isEmpty. Operand 2745 states and 4447 transitions. [2023-12-16 17:18:49,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-16 17:18:49,785 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:18:49,786 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-16 17:18:49,796 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 (18)] Ended with exit code 0 [2023-12-16 17:18:49,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:18:49,996 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:18:49,996 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:18:49,997 INFO L85 PathProgramCache]: Analyzing trace with hash -310157011, now seen corresponding path program 1 times [2023-12-16 17:18:49,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:18:49,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [768516786] [2023-12-16 17:18:49,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:18:49,997 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:18:49,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:18:49,998 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:18:49,999 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 [2023-12-16 17:18:50,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:18:50,285 INFO L262 TraceCheckSpWp]: Trace formula consists of 846 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:18:50,288 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:18:50,422 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-16 17:18:50,422 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:18:50,422 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:18:50,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [768516786] [2023-12-16 17:18:50,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [768516786] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:18:50,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:18:50,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:18:50,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022837338] [2023-12-16 17:18:50,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:18:50,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:18:50,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:18:50,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:18:50,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:18:50,424 INFO L87 Difference]: Start difference. First operand 2745 states and 4447 transitions. Second operand has 5 states, 5 states have (on average 16.8) 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) [2023-12-16 17:18:51,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:18:51,202 INFO L93 Difference]: Finished difference Result 5457 states and 9112 transitions. [2023-12-16 17:18:51,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:18:51,203 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) 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 139 [2023-12-16 17:18:51,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:18:51,217 INFO L225 Difference]: With dead ends: 5457 [2023-12-16 17:18:51,217 INFO L226 Difference]: Without dead ends: 2769 [2023-12-16 17:18:51,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:18:51,232 INFO L413 NwaCegarLoop]: 895 mSDtfsCounter, 877 mSDsluCounter, 1387 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 895 SdHoareTripleChecker+Valid, 2282 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 17:18:51,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [895 Valid, 2282 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 17:18:51,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2769 states. [2023-12-16 17:18:51,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2769 to 2769. [2023-12-16 17:18:51,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2769 states, 2066 states have (on average 1.5653436592449177) internal successors, (3234), 2132 states have internal predecessors, (3234), 575 states have call successors, (575), 120 states have call predecessors, (575), 127 states have return successors, (662), 554 states have call predecessors, (662), 569 states have call successors, (662) [2023-12-16 17:18:51,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2769 states to 2769 states and 4471 transitions. [2023-12-16 17:18:51,404 INFO L78 Accepts]: Start accepts. Automaton has 2769 states and 4471 transitions. Word has length 139 [2023-12-16 17:18:51,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:18:51,404 INFO L495 AbstractCegarLoop]: Abstraction has 2769 states and 4471 transitions. [2023-12-16 17:18:51,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) 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) [2023-12-16 17:18:51,405 INFO L276 IsEmpty]: Start isEmpty. Operand 2769 states and 4471 transitions. [2023-12-16 17:18:51,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 17:18:51,410 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:18:51,410 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-16 17:18:51,422 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2023-12-16 17:18:51,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:18:51,620 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:18:51,620 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:18:51,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1774935507, now seen corresponding path program 1 times [2023-12-16 17:18:51,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:18:51,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [846212257] [2023-12-16 17:18:51,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:18:51,621 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:18:51,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:18:51,623 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:18:51,656 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-12-16 17:18:51,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:18:51,940 INFO L262 TraceCheckSpWp]: Trace formula consists of 848 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:18:51,942 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:18:52,042 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-16 17:18:52,042 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:18:52,042 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:18:52,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [846212257] [2023-12-16 17:18:52,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [846212257] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:18:52,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:18:52,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:18:52,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278250546] [2023-12-16 17:18:52,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:18:52,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:18:52,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:18:52,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:18:52,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:18:52,044 INFO L87 Difference]: Start difference. First operand 2769 states and 4471 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 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) [2023-12-16 17:18:52,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:18:52,946 INFO L93 Difference]: Finished difference Result 5511 states and 9152 transitions. [2023-12-16 17:18:52,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:18:52,947 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 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 141 [2023-12-16 17:18:52,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:18:52,959 INFO L225 Difference]: With dead ends: 5511 [2023-12-16 17:18:52,960 INFO L226 Difference]: Without dead ends: 2799 [2023-12-16 17:18:52,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:18:52,971 INFO L413 NwaCegarLoop]: 896 mSDtfsCounter, 866 mSDsluCounter, 1387 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 883 SdHoareTripleChecker+Valid, 2283 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 17:18:52,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [883 Valid, 2283 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 17:18:52,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2799 states. [2023-12-16 17:18:53,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2799 to 2799. [2023-12-16 17:18:53,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2799 states, 2090 states have (on average 1.5588516746411483) internal successors, (3258), 2156 states have internal predecessors, (3258), 575 states have call successors, (575), 126 states have call predecessors, (575), 133 states have return successors, (668), 554 states have call predecessors, (668), 569 states have call successors, (668) [2023-12-16 17:18:53,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2799 states to 2799 states and 4501 transitions. [2023-12-16 17:18:53,144 INFO L78 Accepts]: Start accepts. Automaton has 2799 states and 4501 transitions. Word has length 141 [2023-12-16 17:18:53,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:18:53,144 INFO L495 AbstractCegarLoop]: Abstraction has 2799 states and 4501 transitions. [2023-12-16 17:18:53,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 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) [2023-12-16 17:18:53,145 INFO L276 IsEmpty]: Start isEmpty. Operand 2799 states and 4501 transitions. [2023-12-16 17:18:53,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-16 17:18:53,149 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:18:53,149 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-16 17:18:53,172 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2023-12-16 17:18:53,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:18:53,359 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:18:53,360 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:18:53,360 INFO L85 PathProgramCache]: Analyzing trace with hash -2042977363, now seen corresponding path program 1 times [2023-12-16 17:18:53,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:18:53,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1824511886] [2023-12-16 17:18:53,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:18:53,360 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:18:53,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:18:53,362 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:18:53,363 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-12-16 17:18:53,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:18:53,703 INFO L262 TraceCheckSpWp]: Trace formula consists of 850 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:18:53,706 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:18:53,806 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-16 17:18:53,806 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:18:53,806 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:18:53,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1824511886] [2023-12-16 17:18:53,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1824511886] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:18:53,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:18:53,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:18:53,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54114401] [2023-12-16 17:18:53,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:18:53,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:18:53,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:18:53,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:18:53,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:18:53,807 INFO L87 Difference]: Start difference. First operand 2799 states and 4501 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 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) [2023-12-16 17:18:54,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:18:54,593 INFO L93 Difference]: Finished difference Result 5577 states and 9204 transitions. [2023-12-16 17:18:54,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:18:54,594 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 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 143 [2023-12-16 17:18:54,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:18:54,609 INFO L225 Difference]: With dead ends: 5577 [2023-12-16 17:18:54,609 INFO L226 Difference]: Without dead ends: 2835 [2023-12-16 17:18:54,619 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 [2023-12-16 17:18:54,621 INFO L413 NwaCegarLoop]: 896 mSDtfsCounter, 874 mSDsluCounter, 1387 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 891 SdHoareTripleChecker+Valid, 2283 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 17:18:54,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [891 Valid, 2283 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 17:18:54,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2835 states. [2023-12-16 17:18:54,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2835 to 2835. [2023-12-16 17:18:54,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2835 states, 2120 states have (on average 1.5509433962264152) internal successors, (3288), 2186 states have internal predecessors, (3288), 575 states have call successors, (575), 132 states have call predecessors, (575), 139 states have return successors, (674), 554 states have call predecessors, (674), 569 states have call successors, (674) [2023-12-16 17:18:54,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2835 states to 2835 states and 4537 transitions. [2023-12-16 17:18:54,777 INFO L78 Accepts]: Start accepts. Automaton has 2835 states and 4537 transitions. Word has length 143 [2023-12-16 17:18:54,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:18:54,777 INFO L495 AbstractCegarLoop]: Abstraction has 2835 states and 4537 transitions. [2023-12-16 17:18:54,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 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) [2023-12-16 17:18:54,778 INFO L276 IsEmpty]: Start isEmpty. Operand 2835 states and 4537 transitions. [2023-12-16 17:18:54,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-16 17:18:54,783 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:18:54,783 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-16 17:18:54,830 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2023-12-16 17:18:54,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:18:54,994 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:18:54,996 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:18:54,996 INFO L85 PathProgramCache]: Analyzing trace with hash -2133864373, now seen corresponding path program 1 times [2023-12-16 17:18:54,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:18:54,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [643507565] [2023-12-16 17:18:54,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:18:54,997 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:18:54,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:18:54,998 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:18:55,031 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-12-16 17:18:55,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:18:55,314 INFO L262 TraceCheckSpWp]: Trace formula consists of 852 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:18:55,317 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:18:55,412 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-16 17:18:55,412 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:18:55,412 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:18:55,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [643507565] [2023-12-16 17:18:55,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [643507565] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:18:55,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:18:55,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:18:55,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774035614] [2023-12-16 17:18:55,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:18:55,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:18:55,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:18:55,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:18:55,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:18:55,414 INFO L87 Difference]: Start difference. First operand 2835 states and 4537 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, (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) [2023-12-16 17:18:56,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:18:56,156 INFO L93 Difference]: Finished difference Result 5655 states and 9268 transitions. [2023-12-16 17:18:56,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:18:56,156 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, (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 145 [2023-12-16 17:18:56,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:18:56,169 INFO L225 Difference]: With dead ends: 5655 [2023-12-16 17:18:56,169 INFO L226 Difference]: Without dead ends: 2877 [2023-12-16 17:18:56,179 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 [2023-12-16 17:18:56,179 INFO L413 NwaCegarLoop]: 896 mSDtfsCounter, 876 mSDsluCounter, 1387 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 893 SdHoareTripleChecker+Valid, 2283 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 17:18:56,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [893 Valid, 2283 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 17:18:56,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2877 states. [2023-12-16 17:18:56,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2877 to 2877. [2023-12-16 17:18:56,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2877 states, 2156 states have (on average 1.5417439703153988) internal successors, (3324), 2222 states have internal predecessors, (3324), 575 states have call successors, (575), 138 states have call predecessors, (575), 145 states have return successors, (680), 554 states have call predecessors, (680), 569 states have call successors, (680) [2023-12-16 17:18:56,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2877 states to 2877 states and 4579 transitions. [2023-12-16 17:18:56,303 INFO L78 Accepts]: Start accepts. Automaton has 2877 states and 4579 transitions. Word has length 145 [2023-12-16 17:18:56,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:18:56,303 INFO L495 AbstractCegarLoop]: Abstraction has 2877 states and 4579 transitions. [2023-12-16 17:18:56,304 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, (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) [2023-12-16 17:18:56,304 INFO L276 IsEmpty]: Start isEmpty. Operand 2877 states and 4579 transitions. [2023-12-16 17:18:56,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-16 17:18:56,307 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:18:56,307 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-16 17:18:56,317 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2023-12-16 17:18:56,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:18:56,508 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:18:56,508 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:18:56,508 INFO L85 PathProgramCache]: Analyzing trace with hash -742607827, now seen corresponding path program 1 times [2023-12-16 17:18:56,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:18:56,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [920530833] [2023-12-16 17:18:56,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:18:56,509 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:18:56,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:18:56,510 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:18:56,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-12-16 17:18:56,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:18:56,786 INFO L262 TraceCheckSpWp]: Trace formula consists of 854 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-16 17:18:56,789 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:18:56,979 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 10 proven. 9 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-16 17:18:56,979 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:18:57,374 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-12-16 17:18:57,374 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:18:57,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [920530833] [2023-12-16 17:18:57,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [920530833] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:18:57,374 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:18:57,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 18 [2023-12-16 17:18:57,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794155184] [2023-12-16 17:18:57,375 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:18:57,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-16 17:18:57,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:18:57,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-16 17:18:57,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2023-12-16 17:18:57,376 INFO L87 Difference]: Start difference. First operand 2877 states and 4579 transitions. Second operand has 18 states, 16 states have (on average 9.5) internal successors, (152), 14 states have internal predecessors, (152), 8 states have call successors, (36), 6 states have call predecessors, (36), 12 states have return successors, (36), 12 states have call predecessors, (36), 8 states have call successors, (36) [2023-12-16 17:19:06,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:19:06,351 INFO L93 Difference]: Finished difference Result 9280 states and 15210 transitions. [2023-12-16 17:19:06,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-16 17:19:06,352 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 9.5) internal successors, (152), 14 states have internal predecessors, (152), 8 states have call successors, (36), 6 states have call predecessors, (36), 12 states have return successors, (36), 12 states have call predecessors, (36), 8 states have call successors, (36) Word has length 147 [2023-12-16 17:19:06,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:19:06,385 INFO L225 Difference]: With dead ends: 9280 [2023-12-16 17:19:06,386 INFO L226 Difference]: Without dead ends: 6460 [2023-12-16 17:19:06,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=192, Invalid=738, Unknown=0, NotChecked=0, Total=930 [2023-12-16 17:19:06,402 INFO L413 NwaCegarLoop]: 868 mSDtfsCounter, 2337 mSDsluCounter, 5456 mSDsCounter, 0 mSdLazyCounter, 13439 mSolverCounterSat, 717 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2426 SdHoareTripleChecker+Valid, 6324 SdHoareTripleChecker+Invalid, 14156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 717 IncrementalHoareTripleChecker+Valid, 13439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2023-12-16 17:19:06,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2426 Valid, 6324 Invalid, 14156 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [717 Valid, 13439 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2023-12-16 17:19:06,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6460 states. [2023-12-16 17:19:06,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6460 to 6108. [2023-12-16 17:19:06,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6108 states, 4507 states have (on average 1.5369425338362548) internal successors, (6927), 4659 states have internal predecessors, (6927), 1275 states have call successors, (1275), 273 states have call predecessors, (1275), 325 states have return successors, (1645), 1266 states have call predecessors, (1645), 1265 states have call successors, (1645) [2023-12-16 17:19:06,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6108 states to 6108 states and 9847 transitions. [2023-12-16 17:19:06,876 INFO L78 Accepts]: Start accepts. Automaton has 6108 states and 9847 transitions. Word has length 147 [2023-12-16 17:19:06,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:19:06,877 INFO L495 AbstractCegarLoop]: Abstraction has 6108 states and 9847 transitions. [2023-12-16 17:19:06,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 9.5) internal successors, (152), 14 states have internal predecessors, (152), 8 states have call successors, (36), 6 states have call predecessors, (36), 12 states have return successors, (36), 12 states have call predecessors, (36), 8 states have call successors, (36) [2023-12-16 17:19:06,877 INFO L276 IsEmpty]: Start isEmpty. Operand 6108 states and 9847 transitions. [2023-12-16 17:19:06,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-16 17:19:06,885 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:19:06,886 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-16 17:19:06,899 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2023-12-16 17:19:07,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:19:07,097 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:19:07,097 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:19:07,097 INFO L85 PathProgramCache]: Analyzing trace with hash -2039305875, now seen corresponding path program 1 times [2023-12-16 17:19:07,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:19:07,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [269090671] [2023-12-16 17:19:07,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:19:07,098 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:19:07,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:19:07,099 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:19:07,148 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-12-16 17:19:07,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:19:07,429 INFO L262 TraceCheckSpWp]: Trace formula consists of 855 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 17:19:07,433 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:19:07,494 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-16 17:19:07,495 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:19:07,495 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:19:07,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [269090671] [2023-12-16 17:19:07,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [269090671] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:19:07,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:19:07,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 17:19:07,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241070664] [2023-12-16 17:19:07,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:19:07,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 17:19:07,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:19:07,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 17:19:07,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:19:07,497 INFO L87 Difference]: Start difference. First operand 6108 states and 9847 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, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-16 17:19:08,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:19:08,139 INFO L93 Difference]: Finished difference Result 12020 states and 19423 transitions. [2023-12-16 17:19:08,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 17:19:08,140 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, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 148 [2023-12-16 17:19:08,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:19:08,169 INFO L225 Difference]: With dead ends: 12020 [2023-12-16 17:19:08,169 INFO L226 Difference]: Without dead ends: 5934 [2023-12-16 17:19:08,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:19:08,188 INFO L413 NwaCegarLoop]: 901 mSDtfsCounter, 70 mSDsluCounter, 5356 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 6257 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:19:08,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 6257 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:19:08,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5934 states. [2023-12-16 17:19:08,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5934 to 5926. [2023-12-16 17:19:08,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5926 states, 4364 states have (on average 1.546287809349221) internal successors, (6748), 4515 states have internal predecessors, (6748), 1252 states have call successors, (1252), 258 states have call predecessors, (1252), 309 states have return successors, (1579), 1243 states have call predecessors, (1579), 1242 states have call successors, (1579) [2023-12-16 17:19:08,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5926 states to 5926 states and 9579 transitions. [2023-12-16 17:19:08,512 INFO L78 Accepts]: Start accepts. Automaton has 5926 states and 9579 transitions. Word has length 148 [2023-12-16 17:19:08,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:19:08,512 INFO L495 AbstractCegarLoop]: Abstraction has 5926 states and 9579 transitions. [2023-12-16 17:19:08,513 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, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-16 17:19:08,513 INFO L276 IsEmpty]: Start isEmpty. Operand 5926 states and 9579 transitions. [2023-12-16 17:19:08,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-12-16 17:19:08,516 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:19:08,516 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-16 17:19:08,526 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2023-12-16 17:19:08,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:19:08,725 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:19:08,725 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:19:08,725 INFO L85 PathProgramCache]: Analyzing trace with hash -698118501, now seen corresponding path program 1 times [2023-12-16 17:19:08,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:19:08,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1199329628] [2023-12-16 17:19:08,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:19:08,726 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:19:08,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:19:08,727 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:19:08,732 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-16 17:19:09,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:19:09,035 INFO L262 TraceCheckSpWp]: Trace formula consists of 869 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-16 17:19:09,038 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:19:09,256 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 18 proven. 7 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-16 17:19:09,256 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:19:09,744 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-12-16 17:19:09,744 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:19:09,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1199329628] [2023-12-16 17:19:09,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1199329628] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:19:09,744 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:19:09,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2023-12-16 17:19:09,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289937102] [2023-12-16 17:19:09,745 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:19:09,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-16 17:19:09,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:19:09,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-16 17:19:09,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2023-12-16 17:19:09,746 INFO L87 Difference]: Start difference. First operand 5926 states and 9579 transitions. Second operand has 14 states, 14 states have (on average 11.142857142857142) internal successors, (156), 12 states have internal predecessors, (156), 8 states have call successors, (37), 6 states have call predecessors, (37), 10 states have return successors, (36), 10 states have call predecessors, (36), 8 states have call successors, (36) [2023-12-16 17:19:16,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:19:16,413 INFO L93 Difference]: Finished difference Result 15156 states and 25010 transitions. [2023-12-16 17:19:16,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-16 17:19:16,414 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 11.142857142857142) internal successors, (156), 12 states have internal predecessors, (156), 8 states have call successors, (37), 6 states have call predecessors, (37), 10 states have return successors, (36), 10 states have call predecessors, (36), 8 states have call successors, (36) Word has length 156 [2023-12-16 17:19:16,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:19:16,455 INFO L225 Difference]: With dead ends: 15156 [2023-12-16 17:19:16,455 INFO L226 Difference]: Without dead ends: 9286 [2023-12-16 17:19:16,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 301 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=354, Unknown=0, NotChecked=0, Total=462 [2023-12-16 17:19:16,482 INFO L413 NwaCegarLoop]: 811 mSDtfsCounter, 4210 mSDsluCounter, 3164 mSDsCounter, 0 mSdLazyCounter, 8291 mSolverCounterSat, 1253 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4290 SdHoareTripleChecker+Valid, 3975 SdHoareTripleChecker+Invalid, 9544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1253 IncrementalHoareTripleChecker+Valid, 8291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2023-12-16 17:19:16,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4290 Valid, 3975 Invalid, 9544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1253 Valid, 8291 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2023-12-16 17:19:16,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9286 states. [2023-12-16 17:19:16,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9286 to 8968. [2023-12-16 17:19:16,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8968 states, 6571 states have (on average 1.5463399786942627) internal successors, (10161), 6795 states have internal predecessors, (10161), 1929 states have call successors, (1929), 378 states have call predecessors, (1929), 467 states have return successors, (2468), 1938 states have call predecessors, (2468), 1915 states have call successors, (2468) [2023-12-16 17:19:17,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8968 states to 8968 states and 14558 transitions. [2023-12-16 17:19:17,022 INFO L78 Accepts]: Start accepts. Automaton has 8968 states and 14558 transitions. Word has length 156 [2023-12-16 17:19:17,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:19:17,022 INFO L495 AbstractCegarLoop]: Abstraction has 8968 states and 14558 transitions. [2023-12-16 17:19:17,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 11.142857142857142) internal successors, (156), 12 states have internal predecessors, (156), 8 states have call successors, (37), 6 states have call predecessors, (37), 10 states have return successors, (36), 10 states have call predecessors, (36), 8 states have call successors, (36) [2023-12-16 17:19:17,022 INFO L276 IsEmpty]: Start isEmpty. Operand 8968 states and 14558 transitions. [2023-12-16 17:19:17,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-16 17:19:17,025 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:19:17,025 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-16 17:19:17,046 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2023-12-16 17:19:17,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:19:17,235 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:19:17,235 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:19:17,235 INFO L85 PathProgramCache]: Analyzing trace with hash -674805295, now seen corresponding path program 1 times [2023-12-16 17:19:17,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:19:17,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1857030744] [2023-12-16 17:19:17,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:19:17,236 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:19:17,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:19:17,265 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:19:17,299 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-12-16 17:19:17,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:19:17,568 INFO L262 TraceCheckSpWp]: Trace formula consists of 873 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 17:19:17,571 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:19:17,939 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-12-16 17:19:17,939 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:19:17,940 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:19:17,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1857030744] [2023-12-16 17:19:17,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1857030744] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:19:17,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:19:17,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:19:17,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515063326] [2023-12-16 17:19:17,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:19:17,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 17:19:17,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:19:17,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 17:19:17,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:19:17,941 INFO L87 Difference]: Start difference. First operand 8968 states and 14558 transitions. Second operand has 8 states, 8 states have (on average 12.5) internal successors, (100), 7 states have internal predecessors, (100), 6 states have call successors, (22), 5 states have call predecessors, (22), 5 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2023-12-16 17:19:23,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:19:23,302 INFO L93 Difference]: Finished difference Result 24958 states and 41637 transitions. [2023-12-16 17:19:23,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 17:19:23,302 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.5) internal successors, (100), 7 states have internal predecessors, (100), 6 states have call successors, (22), 5 states have call predecessors, (22), 5 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) Word has length 158 [2023-12-16 17:19:23,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:19:23,368 INFO L225 Difference]: With dead ends: 24958 [2023-12-16 17:19:23,368 INFO L226 Difference]: Without dead ends: 16046 [2023-12-16 17:19:23,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-12-16 17:19:23,401 INFO L413 NwaCegarLoop]: 566 mSDtfsCounter, 4060 mSDsluCounter, 1019 mSDsCounter, 0 mSdLazyCounter, 4855 mSolverCounterSat, 855 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4266 SdHoareTripleChecker+Valid, 1585 SdHoareTripleChecker+Invalid, 5710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 855 IncrementalHoareTripleChecker+Valid, 4855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:19:23,401 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4266 Valid, 1585 Invalid, 5710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [855 Valid, 4855 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-12-16 17:19:23,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16046 states. [2023-12-16 17:19:24,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16046 to 13825. [2023-12-16 17:19:24,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13825 states, 10230 states have (on average 1.5525904203323557) internal successors, (15883), 10526 states have internal predecessors, (15883), 2879 states have call successors, (2879), 554 states have call predecessors, (2879), 715 states have return successors, (3908), 2879 states have call predecessors, (3908), 2859 states have call successors, (3908) [2023-12-16 17:19:24,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13825 states to 13825 states and 22670 transitions. [2023-12-16 17:19:24,548 INFO L78 Accepts]: Start accepts. Automaton has 13825 states and 22670 transitions. Word has length 158 [2023-12-16 17:19:24,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:19:24,548 INFO L495 AbstractCegarLoop]: Abstraction has 13825 states and 22670 transitions. [2023-12-16 17:19:24,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.5) internal successors, (100), 7 states have internal predecessors, (100), 6 states have call successors, (22), 5 states have call predecessors, (22), 5 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2023-12-16 17:19:24,548 INFO L276 IsEmpty]: Start isEmpty. Operand 13825 states and 22670 transitions. [2023-12-16 17:19:24,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-16 17:19:24,551 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:19:24,551 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-16 17:19:24,564 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2023-12-16 17:19:24,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:19:24,761 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:19:24,762 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:19:24,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1259828370, now seen corresponding path program 1 times [2023-12-16 17:19:24,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:19:24,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1954362216] [2023-12-16 17:19:24,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:19:24,762 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:19:24,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:19:24,763 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:19:24,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2023-12-16 17:19:25,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:19:25,149 INFO L262 TraceCheckSpWp]: Trace formula consists of 870 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 17:19:25,152 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:19:25,296 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-16 17:19:25,296 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:19:25,666 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-16 17:19:25,667 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:19:25,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1954362216] [2023-12-16 17:19:25,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1954362216] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:19:25,667 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:19:25,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2023-12-16 17:19:25,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755790009] [2023-12-16 17:19:25,667 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:19:25,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-16 17:19:25,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:19:25,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-16 17:19:25,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:19:25,669 INFO L87 Difference]: Start difference. First operand 13825 states and 22670 transitions. Second operand has 11 states, 11 states have (on average 12.090909090909092) internal successors, (133), 11 states have internal predecessors, (133), 6 states have call successors, (32), 5 states have call predecessors, (32), 7 states have return successors, (30), 7 states have call predecessors, (30), 6 states have call successors, (30) Received shutdown request... [2023-12-16 17:19:29,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-16 17:19:29,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 312 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2023-12-16 17:19:29,252 INFO L413 NwaCegarLoop]: 278 mSDtfsCounter, 5545 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 4296 mSolverCounterSat, 1189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5590 SdHoareTripleChecker+Valid, 878 SdHoareTripleChecker+Invalid, 5485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1189 IncrementalHoareTripleChecker+Valid, 4296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:19:29,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5590 Valid, 878 Invalid, 5485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1189 Valid, 4296 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-12-16 17:19:29,255 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 17:19:29,261 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 17:19:29,261 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 17:19:29,267 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2023-12-16 17:19:29,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:19:29,465 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (13825states) and FLOYD_HOARE automaton (currently 17 states, 11 states before enhancement),while ReachableStatesComputation was computing reachable states (6069 states constructed, input type IntersectNwa). [2023-12-16 17:19:29,469 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:19:29,472 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 17:19:29,476 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 05:19:29 BoogieIcfgContainer [2023-12-16 17:19:29,476 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 17:19:29,477 INFO L158 Benchmark]: Toolchain (without parser) took 61794.96ms. Allocated memory was 234.9MB in the beginning and 1.1GB in the end (delta: 855.6MB). Free memory was 181.3MB in the beginning and 370.6MB in the end (delta: -189.3MB). Peak memory consumption was 667.3MB. Max. memory is 8.0GB. [2023-12-16 17:19:29,477 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 173.0MB. Free memory is still 121.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 17:19:29,477 INFO L158 Benchmark]: CACSL2BoogieTranslator took 790.22ms. Allocated memory is still 234.9MB. Free memory was 180.9MB in the beginning and 179.6MB in the end (delta: 1.3MB). Peak memory consumption was 47.7MB. Max. memory is 8.0GB. [2023-12-16 17:19:29,477 INFO L158 Benchmark]: Boogie Procedure Inliner took 100.64ms. Allocated memory is still 234.9MB. Free memory was 179.1MB in the beginning and 174.4MB in the end (delta: 4.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 17:19:29,478 INFO L158 Benchmark]: Boogie Preprocessor took 134.47ms. Allocated memory is still 234.9MB. Free memory was 174.4MB in the beginning and 165.5MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2023-12-16 17:19:29,480 INFO L158 Benchmark]: RCFGBuilder took 1582.48ms. Allocated memory is still 234.9MB. Free memory was 164.9MB in the beginning and 157.6MB in the end (delta: 7.3MB). Peak memory consumption was 103.3MB. Max. memory is 8.0GB. [2023-12-16 17:19:29,480 INFO L158 Benchmark]: TraceAbstraction took 59181.62ms. Allocated memory was 234.9MB in the beginning and 1.1GB in the end (delta: 855.6MB). Free memory was 157.1MB in the beginning and 370.6MB in the end (delta: -213.5MB). Peak memory consumption was 642.1MB. Max. memory is 8.0GB. [2023-12-16 17:19:29,487 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 173.0MB. Free memory is still 121.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 790.22ms. Allocated memory is still 234.9MB. Free memory was 180.9MB in the beginning and 179.6MB in the end (delta: 1.3MB). Peak memory consumption was 47.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 100.64ms. Allocated memory is still 234.9MB. Free memory was 179.1MB in the beginning and 174.4MB in the end (delta: 4.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 134.47ms. Allocated memory is still 234.9MB. Free memory was 174.4MB in the beginning and 165.5MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * RCFGBuilder took 1582.48ms. Allocated memory is still 234.9MB. Free memory was 164.9MB in the beginning and 157.6MB in the end (delta: 7.3MB). Peak memory consumption was 103.3MB. Max. memory is 8.0GB. * TraceAbstraction took 59181.62ms. Allocated memory was 234.9MB in the beginning and 1.1GB in the end (delta: 855.6MB). Free memory was 157.1MB in the beginning and 370.6MB in the end (delta: -213.5MB). Peak memory consumption was 642.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 48]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [48] - GenericResultAtLocation [Line: 414]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [414] - GenericResultAtLocation [Line: 434]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [434] - GenericResultAtLocation [Line: 2095]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2095] - GenericResultAtLocation [Line: 2449]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2449] - GenericResultAtLocation [Line: 2458]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [2458] - GenericResultAtLocation [Line: 2549]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [2549] - GenericResultAtLocation [Line: 3210]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification13_spec.i","") [3210] - GenericResultAtLocation [Line: 3299]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [3299] - GenericResultAtLocation [Line: 3417]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [3417] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 2454]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 2454). Cancelled while NwaCegarLoop was constructing difference of abstraction (13825states) and FLOYD_HOARE automaton (currently 17 states, 11 states before enhancement),while ReachableStatesComputation was computing reachable states (6069 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 30 procedures, 604 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 59.1s, OverallIterations: 26, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 37.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 24686 SdHoareTripleChecker+Valid, 31.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 24080 mSDsluCounter, 104741 SdHoareTripleChecker+Invalid, 26.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 81907 mSDsCounter, 4839 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 40624 IncrementalHoareTripleChecker+Invalid, 45463 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4839 mSolverCounterUnsat, 22834 mSDtfsCounter, 40624 mSolverCounterSat, 0.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3428 GetRequests, 3227 SyntacticMatches, 0 SemanticMatches, 201 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13825occurred in iteration=25, InterpolantAutomatonStates: 193, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.7s AutomataMinimizationTime, 25 MinimizatonAttempts, 3106 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.2s SsaConstructionTime, 4.5s SatisfiabilityAnalysisTime, 4.4s InterpolantComputationTime, 2903 NumberOfCodeBlocks, 2903 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 3334 ConstructedInterpolants, 0 QuantifiedInterpolants, 7206 SizeOfPredicates, 56 NumberOfNonLiveVariables, 20091 ConjunctsInSsa, 179 ConjunctsInUnsatCore, 29 InterpolantComputations, 23 PerfectInterpolantSequences, 952/982 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown