/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_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/product-lines/elevator_spec9_product27.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 22:40:14,594 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 22:40:14,686 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-15 22:40:14,691 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 22:40:14,692 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 22:40:14,720 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 22:40:14,721 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 22:40:14,721 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 22:40:14,722 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 22:40:14,725 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 22:40:14,725 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 22:40:14,726 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 22:40:14,727 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 22:40:14,728 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 22:40:14,728 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 22:40:14,728 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 22:40:14,729 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 22:40:14,729 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 22:40:14,729 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 22:40:14,730 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 22:40:14,730 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 22:40:14,731 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 22:40:14,731 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 22:40:14,731 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 22:40:14,731 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 22:40:14,732 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 22:40:14,732 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 22:40:14,732 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 22:40:14,733 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 22:40:14,733 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 22:40:14,734 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 22:40:14,734 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 22:40:14,734 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 22:40:14,734 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 22:40:14,734 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 22:40:14,734 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 22:40:14,735 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 22:40:14,735 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 22:40:14,735 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 22:40:14,735 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 22:40:14,735 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 22:40:14,735 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 22:40:14,735 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 22:40:14,736 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 22:40:14,972 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 22:40:14,995 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 22:40:14,997 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 22:40:14,998 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 22:40:14,998 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 22:40:14,999 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec9_product27.cil.c [2023-12-15 22:40:16,191 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 22:40:16,462 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 22:40:16,462 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec9_product27.cil.c [2023-12-15 22:40:16,489 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91f185671/82c67ef701484b3b994c73b250aeeced/FLAG969659cf1 [2023-12-15 22:40:16,503 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91f185671/82c67ef701484b3b994c73b250aeeced [2023-12-15 22:40:16,505 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 22:40:16,506 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 22:40:16,507 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 22:40:16,507 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 22:40:16,512 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 22:40:16,512 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:40:16" (1/1) ... [2023-12-15 22:40:16,513 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c41b7d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:40:16, skipping insertion in model container [2023-12-15 22:40:16,513 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:40:16" (1/1) ... [2023-12-15 22:40:16,580 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 22:40:17,075 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_spec9_product27.cil.c[66437,66450] [2023-12-15 22:40:17,097 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 22:40:17,117 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 22:40:17,124 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [48] [2023-12-15 22:40:17,126 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [414] [2023-12-15 22:40:17,129 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [516] [2023-12-15 22:40:17,130 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [873] [2023-12-15 22:40:17,130 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [2432] [2023-12-15 22:40:17,131 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [3093] [2023-12-15 22:40:17,131 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3105] [2023-12-15 22:40:17,131 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification9_spec.i","") [3114] [2023-12-15 22:40:17,132 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [3273] [2023-12-15 22:40:17,132 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [3308] [2023-12-15 22:40:17,227 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_spec9_product27.cil.c[66437,66450] [2023-12-15 22:40:17,232 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 22:40:17,264 INFO L206 MainTranslator]: Completed translation [2023-12-15 22:40:17,264 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:40:17 WrapperNode [2023-12-15 22:40:17,264 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 22:40:17,265 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 22:40:17,265 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 22:40:17,265 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 22:40:17,270 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:40:17" (1/1) ... [2023-12-15 22:40:17,292 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:40:17" (1/1) ... [2023-12-15 22:40:17,366 INFO L138 Inliner]: procedures = 95, calls = 339, calls flagged for inlining = 27, calls inlined = 24, statements flattened = 1121 [2023-12-15 22:40:17,367 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 22:40:17,367 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 22:40:17,368 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 22:40:17,368 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 22:40:17,396 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:40:17" (1/1) ... [2023-12-15 22:40:17,397 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:40:17" (1/1) ... [2023-12-15 22:40:17,419 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:40:17" (1/1) ... [2023-12-15 22:40:17,462 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]. [2023-12-15 22:40:17,462 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:40:17" (1/1) ... [2023-12-15 22:40:17,462 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:40:17" (1/1) ... [2023-12-15 22:40:17,509 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:40:17" (1/1) ... [2023-12-15 22:40:17,519 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:40:17" (1/1) ... [2023-12-15 22:40:17,525 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:40:17" (1/1) ... [2023-12-15 22:40:17,530 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:40:17" (1/1) ... [2023-12-15 22:40:17,564 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 22:40:17,565 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 22:40:17,565 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 22:40:17,565 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 22:40:17,573 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:40:17" (1/1) ... [2023-12-15 22:40:17,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 22:40:17,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:40:17,602 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) [2023-12-15 22:40:17,632 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 [2023-12-15 22:40:17,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 22:40:17,640 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-12-15 22:40:17,640 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-12-15 22:40:17,640 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2023-12-15 22:40:17,640 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2023-12-15 22:40:17,640 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-12-15 22:40:17,641 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-12-15 22:40:17,641 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2023-12-15 22:40:17,641 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2023-12-15 22:40:17,641 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-12-15 22:40:17,641 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-12-15 22:40:17,641 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-12-15 22:40:17,641 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-12-15 22:40:17,641 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-15 22:40:17,641 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-15 22:40:17,642 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-15 22:40:17,642 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-15 22:40:17,643 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-12-15 22:40:17,644 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-12-15 22:40:17,645 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-12-15 22:40:17,645 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-12-15 22:40:17,645 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-12-15 22:40:17,645 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-12-15 22:40:17,645 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-12-15 22:40:17,645 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-12-15 22:40:17,645 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2023-12-15 22:40:17,645 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2023-12-15 22:40:17,645 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-12-15 22:40:17,645 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-12-15 22:40:17,645 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2023-12-15 22:40:17,645 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2023-12-15 22:40:17,646 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-12-15 22:40:17,646 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-12-15 22:40:17,646 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-12-15 22:40:17,646 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-12-15 22:40:17,646 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-12-15 22:40:17,646 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-12-15 22:40:17,646 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-12-15 22:40:17,646 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-12-15 22:40:17,646 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2023-12-15 22:40:17,646 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2023-12-15 22:40:17,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 22:40:17,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-15 22:40:17,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-15 22:40:17,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-15 22:40:17,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-12-15 22:40:17,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-12-15 22:40:17,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-12-15 22:40:17,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-12-15 22:40:17,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-12-15 22:40:17,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-12-15 22:40:17,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-12-15 22:40:17,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-12-15 22:40:17,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-12-15 22:40:17,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-12-15 22:40:17,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-12-15 22:40:17,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2023-12-15 22:40:17,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2023-12-15 22:40:17,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2023-12-15 22:40:17,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2023-12-15 22:40:17,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2023-12-15 22:40:17,648 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-12-15 22:40:17,648 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-12-15 22:40:17,649 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-12-15 22:40:17,649 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-12-15 22:40:17,650 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-12-15 22:40:17,650 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-12-15 22:40:17,650 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 22:40:17,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 22:40:17,650 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-12-15 22:40:17,650 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-12-15 22:40:17,838 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 22:40:17,842 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 22:40:18,839 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 22:40:18,954 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 22:40:18,955 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-15 22:40:18,955 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:40:18 BoogieIcfgContainer [2023-12-15 22:40:18,956 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 22:40:18,957 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 22:40:18,958 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 22:40:18,960 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 22:40:18,960 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 10:40:16" (1/3) ... [2023-12-15 22:40:18,961 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37a5ff3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:40:18, skipping insertion in model container [2023-12-15 22:40:18,961 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:40:17" (2/3) ... [2023-12-15 22:40:18,962 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37a5ff3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:40:18, skipping insertion in model container [2023-12-15 22:40:18,962 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:40:18" (3/3) ... [2023-12-15 22:40:18,963 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec9_product27.cil.c [2023-12-15 22:40:18,975 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 22:40:18,975 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 22:40:19,023 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 22:40:19,028 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;@2f6637ce, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 22:40:19,029 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 22:40:19,035 INFO L276 IsEmpty]: Start isEmpty. Operand has 538 states, 419 states have (on average 1.730310262529833) internal successors, (725), 440 states have internal predecessors, (725), 93 states have call successors, (93), 24 states have call predecessors, (93), 24 states have return successors, (93), 87 states have call predecessors, (93), 93 states have call successors, (93) [2023-12-15 22:40:19,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-15 22:40:19,059 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:40:19,060 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:40:19,060 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:40:19,069 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:40:19,070 INFO L85 PathProgramCache]: Analyzing trace with hash -907299789, now seen corresponding path program 1 times [2023-12-15 22:40:19,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:40:19,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139988254] [2023-12-15 22:40:19,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:40:19,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:40:19,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:19,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:40:19,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:19,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:19,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:19,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-15 22:40:19,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:20,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 22:40:20,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:20,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:20,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:20,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:20,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:20,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:20,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:20,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:40:20,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:20,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 22:40:20,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:20,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:20,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:20,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:20,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:20,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:40:20,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:20,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-15 22:40:20,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:20,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-15 22:40:20,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:20,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-15 22:40:20,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:20,759 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-15 22:40:20,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:40:20,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139988254] [2023-12-15 22:40:20,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139988254] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:40:20,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1787538564] [2023-12-15 22:40:20,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:40:20,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:40:20,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:40:20,768 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 22:40:20,796 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-15 22:40:21,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:21,115 INFO L262 TraceCheckSpWp]: Trace formula consists of 1436 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-15 22:40:21,127 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:40:21,161 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-15 22:40:21,162 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 22:40:21,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1787538564] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:40:21,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 22:40:21,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [16] total 16 [2023-12-15 22:40:21,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091879148] [2023-12-15 22:40:21,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:40:21,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-15 22:40:21,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:40:21,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-15 22:40:21,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2023-12-15 22:40:21,198 INFO L87 Difference]: Start difference. First operand has 538 states, 419 states have (on average 1.730310262529833) internal successors, (725), 440 states have internal predecessors, (725), 93 states have call successors, (93), 24 states have call predecessors, (93), 24 states have return successors, (93), 87 states have call predecessors, (93), 93 states have call successors, (93) Second operand has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-15 22:40:21,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:40:21,299 INFO L93 Difference]: Finished difference Result 556 states and 938 transitions. [2023-12-15 22:40:21,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-15 22:40:21,308 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) Word has length 93 [2023-12-15 22:40:21,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:40:21,346 INFO L225 Difference]: With dead ends: 556 [2023-12-15 22:40:21,346 INFO L226 Difference]: Without dead ends: 534 [2023-12-15 22:40:21,350 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2023-12-15 22:40:21,355 INFO L413 NwaCegarLoop]: 887 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 887 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:40:21,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 887 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:40:21,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2023-12-15 22:40:21,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 534. [2023-12-15 22:40:21,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 417 states have (on average 1.7218225419664268) internal successors, (718), 436 states have internal predecessors, (718), 93 states have call successors, (93), 24 states have call predecessors, (93), 23 states have return successors, (88), 86 states have call predecessors, (88), 88 states have call successors, (88) [2023-12-15 22:40:21,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 899 transitions. [2023-12-15 22:40:21,445 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 899 transitions. Word has length 93 [2023-12-15 22:40:21,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:40:21,447 INFO L495 AbstractCegarLoop]: Abstraction has 534 states and 899 transitions. [2023-12-15 22:40:21,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-15 22:40:21,447 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 899 transitions. [2023-12-15 22:40:21,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-15 22:40:21,454 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:40:21,454 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:40:21,466 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-15 22:40:21,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-15 22:40:21,663 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:40:21,663 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:40:21,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1104418427, now seen corresponding path program 1 times [2023-12-15 22:40:21,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:40:21,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833255255] [2023-12-15 22:40:21,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:40:21,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:40:21,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:21,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:40:21,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:21,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:21,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:22,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-15 22:40:22,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:22,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 22:40:22,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:22,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:22,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:22,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:22,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:22,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:22,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:22,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:40:22,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:22,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 22:40:22,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:22,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:22,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:22,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:22,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:22,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:40:22,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:22,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-15 22:40:22,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:22,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-15 22:40:22,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:22,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-15 22:40:22,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:22,762 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-15 22:40:22,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:40:22,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833255255] [2023-12-15 22:40:22,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833255255] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:40:22,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [626997888] [2023-12-15 22:40:22,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:40:22,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:40:22,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:40:22,769 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 22:40:22,794 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-15 22:40:23,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:23,079 INFO L262 TraceCheckSpWp]: Trace formula consists of 1438 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-15 22:40:23,083 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:40:23,117 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-15 22:40:23,118 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 22:40:23,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [626997888] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:40:23,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 22:40:23,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [16] total 17 [2023-12-15 22:40:23,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984285547] [2023-12-15 22:40:23,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:40:23,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 22:40:23,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:40:23,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 22:40:23,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2023-12-15 22:40:23,120 INFO L87 Difference]: Start difference. First operand 534 states and 899 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-15 22:40:23,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:40:23,222 INFO L93 Difference]: Finished difference Result 1463 states and 2472 transitions. [2023-12-15 22:40:23,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 22:40:23,223 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) Word has length 94 [2023-12-15 22:40:23,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:40:23,230 INFO L225 Difference]: With dead ends: 1463 [2023-12-15 22:40:23,230 INFO L226 Difference]: Without dead ends: 994 [2023-12-15 22:40:23,234 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2023-12-15 22:40:23,235 INFO L413 NwaCegarLoop]: 1002 mSDtfsCounter, 885 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 885 SdHoareTripleChecker+Valid, 1768 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:40:23,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [885 Valid, 1768 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:40:23,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 994 states. [2023-12-15 22:40:23,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 994 to 992. [2023-12-15 22:40:23,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 992 states, 772 states have (on average 1.7137305699481866) internal successors, (1323), 805 states have internal predecessors, (1323), 176 states have call successors, (176), 43 states have call predecessors, (176), 43 states have return successors, (181), 169 states have call predecessors, (181), 171 states have call successors, (181) [2023-12-15 22:40:23,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 992 states to 992 states and 1680 transitions. [2023-12-15 22:40:23,286 INFO L78 Accepts]: Start accepts. Automaton has 992 states and 1680 transitions. Word has length 94 [2023-12-15 22:40:23,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:40:23,286 INFO L495 AbstractCegarLoop]: Abstraction has 992 states and 1680 transitions. [2023-12-15 22:40:23,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-15 22:40:23,287 INFO L276 IsEmpty]: Start isEmpty. Operand 992 states and 1680 transitions. [2023-12-15 22:40:23,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-15 22:40:23,291 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:40:23,291 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:40:23,300 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-15 22:40:23,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-12-15 22:40:23,498 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:40:23,499 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:40:23,499 INFO L85 PathProgramCache]: Analyzing trace with hash -122898051, now seen corresponding path program 1 times [2023-12-15 22:40:23,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:40:23,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198509382] [2023-12-15 22:40:23,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:40:23,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:40:23,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:23,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:40:23,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:23,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:23,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:23,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-15 22:40:23,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:24,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 22:40:24,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:24,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:24,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:24,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:24,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:24,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:24,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:24,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:40:24,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:24,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 22:40:24,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:24,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:24,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:24,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:24,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:24,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:40:24,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:24,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-15 22:40:24,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:24,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-15 22:40:24,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:24,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-15 22:40:24,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:24,361 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-15 22:40:24,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:40:24,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198509382] [2023-12-15 22:40:24,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198509382] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:40:24,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [864489442] [2023-12-15 22:40:24,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:40:24,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:40:24,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:40:24,363 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 22:40:24,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-15 22:40:24,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:24,677 INFO L262 TraceCheckSpWp]: Trace formula consists of 1440 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-15 22:40:24,681 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:40:24,715 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-15 22:40:24,715 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 22:40:24,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [864489442] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:40:24,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 22:40:24,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [16] total 17 [2023-12-15 22:40:24,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76736352] [2023-12-15 22:40:24,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:40:24,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 22:40:24,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:40:24,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 22:40:24,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2023-12-15 22:40:24,719 INFO L87 Difference]: Start difference. First operand 992 states and 1680 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-15 22:40:24,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:40:24,831 INFO L93 Difference]: Finished difference Result 2839 states and 4833 transitions. [2023-12-15 22:40:24,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 22:40:24,832 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) Word has length 95 [2023-12-15 22:40:24,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:40:24,852 INFO L225 Difference]: With dead ends: 2839 [2023-12-15 22:40:24,853 INFO L226 Difference]: Without dead ends: 1912 [2023-12-15 22:40:24,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2023-12-15 22:40:24,861 INFO L413 NwaCegarLoop]: 959 mSDtfsCounter, 884 mSDsluCounter, 769 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 884 SdHoareTripleChecker+Valid, 1728 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:40:24,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [884 Valid, 1728 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:40:24,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1912 states. [2023-12-15 22:40:24,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1912 to 1909. [2023-12-15 22:40:24,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1909 states, 1483 states have (on average 1.7086985839514497) internal successors, (2534), 1544 states have internal predecessors, (2534), 342 states have call successors, (342), 81 states have call predecessors, (342), 83 states have return successors, (379), 335 states have call predecessors, (379), 337 states have call successors, (379) [2023-12-15 22:40:24,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1909 states to 1909 states and 3255 transitions. [2023-12-15 22:40:24,957 INFO L78 Accepts]: Start accepts. Automaton has 1909 states and 3255 transitions. Word has length 95 [2023-12-15 22:40:24,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:40:24,958 INFO L495 AbstractCegarLoop]: Abstraction has 1909 states and 3255 transitions. [2023-12-15 22:40:24,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-15 22:40:24,958 INFO L276 IsEmpty]: Start isEmpty. Operand 1909 states and 3255 transitions. [2023-12-15 22:40:24,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-15 22:40:24,962 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:40:24,962 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:40:24,975 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-15 22:40:25,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:40:25,169 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:40:25,170 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:40:25,170 INFO L85 PathProgramCache]: Analyzing trace with hash 485000701, now seen corresponding path program 1 times [2023-12-15 22:40:25,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:40:25,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261984769] [2023-12-15 22:40:25,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:40:25,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:40:25,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:25,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:40:25,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:25,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:25,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:25,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-15 22:40:25,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:25,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 22:40:25,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:25,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:25,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:25,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:25,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:25,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:25,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:25,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:40:25,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:25,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 22:40:25,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:25,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:25,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:25,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:25,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:25,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:40:25,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:25,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-15 22:40:25,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:26,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-15 22:40:26,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:26,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-15 22:40:26,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:26,029 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-15 22:40:26,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:40:26,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261984769] [2023-12-15 22:40:26,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261984769] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:40:26,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1908146547] [2023-12-15 22:40:26,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:40:26,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:40:26,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:40:26,037 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 22:40:26,062 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-15 22:40:26,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:26,369 INFO L262 TraceCheckSpWp]: Trace formula consists of 1442 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-15 22:40:26,372 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:40:26,413 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-15 22:40:26,413 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 22:40:26,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1908146547] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:40:26,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 22:40:26,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [16] total 17 [2023-12-15 22:40:26,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131887211] [2023-12-15 22:40:26,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:40:26,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 22:40:26,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:40:26,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 22:40:26,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2023-12-15 22:40:26,415 INFO L87 Difference]: Start difference. First operand 1909 states and 3255 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-15 22:40:26,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:40:26,586 INFO L93 Difference]: Finished difference Result 5592 states and 9609 transitions. [2023-12-15 22:40:26,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 22:40:26,587 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) Word has length 96 [2023-12-15 22:40:26,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:40:26,623 INFO L225 Difference]: With dead ends: 5592 [2023-12-15 22:40:26,623 INFO L226 Difference]: Without dead ends: 3748 [2023-12-15 22:40:26,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2023-12-15 22:40:26,637 INFO L413 NwaCegarLoop]: 949 mSDtfsCounter, 882 mSDsluCounter, 772 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 882 SdHoareTripleChecker+Valid, 1721 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:40:26,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [882 Valid, 1721 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:40:26,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3748 states. [2023-12-15 22:40:26,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3748 to 3744. [2023-12-15 22:40:26,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3744 states, 2906 states have (on average 1.7054370268410186) internal successors, (4956), 3023 states have internal predecessors, (4956), 674 states have call successors, (674), 157 states have call predecessors, (674), 163 states have return successors, (811), 667 states have call predecessors, (811), 669 states have call successors, (811) [2023-12-15 22:40:26,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3744 states to 3744 states and 6441 transitions. [2023-12-15 22:40:26,810 INFO L78 Accepts]: Start accepts. Automaton has 3744 states and 6441 transitions. Word has length 96 [2023-12-15 22:40:26,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:40:26,811 INFO L495 AbstractCegarLoop]: Abstraction has 3744 states and 6441 transitions. [2023-12-15 22:40:26,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-15 22:40:26,811 INFO L276 IsEmpty]: Start isEmpty. Operand 3744 states and 6441 transitions. [2023-12-15 22:40:26,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-15 22:40:26,818 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:40:26,819 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:40:26,828 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-15 22:40:27,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:40:27,027 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:40:27,027 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:40:27,027 INFO L85 PathProgramCache]: Analyzing trace with hash -2144970561, now seen corresponding path program 1 times [2023-12-15 22:40:27,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:40:27,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876323054] [2023-12-15 22:40:27,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:40:27,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:40:27,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:27,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:40:27,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:27,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:27,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:27,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-15 22:40:27,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:27,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 22:40:27,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:27,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:27,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:27,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:27,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:27,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:27,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:27,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:40:27,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:27,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 22:40:27,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:27,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:27,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:27,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:27,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:27,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:40:27,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:27,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-15 22:40:27,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:27,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-15 22:40:27,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:27,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-15 22:40:27,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:27,875 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-15 22:40:27,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:40:27,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876323054] [2023-12-15 22:40:27,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876323054] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:40:27,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [159776292] [2023-12-15 22:40:27,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:40:27,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:40:27,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:40:27,876 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 22:40:27,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-15 22:40:28,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:28,166 INFO L262 TraceCheckSpWp]: Trace formula consists of 1444 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-15 22:40:28,169 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:40:28,198 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-15 22:40:28,198 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 22:40:28,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [159776292] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:40:28,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 22:40:28,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [16] total 17 [2023-12-15 22:40:28,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099040497] [2023-12-15 22:40:28,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:40:28,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 22:40:28,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:40:28,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 22:40:28,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2023-12-15 22:40:28,200 INFO L87 Difference]: Start difference. First operand 3744 states and 6441 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-15 22:40:28,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:40:28,490 INFO L93 Difference]: Finished difference Result 11099 states and 19338 transitions. [2023-12-15 22:40:28,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 22:40:28,491 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) Word has length 97 [2023-12-15 22:40:28,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:40:28,544 INFO L225 Difference]: With dead ends: 11099 [2023-12-15 22:40:28,544 INFO L226 Difference]: Without dead ends: 7420 [2023-12-15 22:40:28,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2023-12-15 22:40:28,564 INFO L413 NwaCegarLoop]: 974 mSDtfsCounter, 882 mSDsluCounter, 774 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 882 SdHoareTripleChecker+Valid, 1748 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:40:28,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [882 Valid, 1748 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:40:28,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7420 states. [2023-12-15 22:40:28,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7420 to 7415. [2023-12-15 22:40:28,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7415 states, 5753 states have (on average 1.7031114201286286) internal successors, (9798), 5982 states have internal predecessors, (9798), 1338 states have call successors, (1338), 309 states have call predecessors, (1338), 323 states have return successors, (1795), 1331 states have call predecessors, (1795), 1333 states have call successors, (1795) [2023-12-15 22:40:28,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7415 states to 7415 states and 12931 transitions. [2023-12-15 22:40:28,870 INFO L78 Accepts]: Start accepts. Automaton has 7415 states and 12931 transitions. Word has length 97 [2023-12-15 22:40:28,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:40:28,871 INFO L495 AbstractCegarLoop]: Abstraction has 7415 states and 12931 transitions. [2023-12-15 22:40:28,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-15 22:40:28,872 INFO L276 IsEmpty]: Start isEmpty. Operand 7415 states and 12931 transitions. [2023-12-15 22:40:28,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-15 22:40:28,875 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:40:28,875 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:40:28,884 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-15 22:40:29,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:40:29,083 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:40:29,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:40:29,084 INFO L85 PathProgramCache]: Analyzing trace with hash -2069697153, now seen corresponding path program 1 times [2023-12-15 22:40:29,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:40:29,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149855778] [2023-12-15 22:40:29,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:40:29,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:40:29,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:29,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:40:29,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:29,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:29,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:29,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-15 22:40:29,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:29,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 22:40:29,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:29,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:29,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:29,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:29,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:29,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:29,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:29,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:40:29,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:29,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 22:40:29,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:29,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:29,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:29,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:29,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:29,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:40:29,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:29,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-15 22:40:29,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:29,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-15 22:40:29,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:29,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-15 22:40:29,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:29,890 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-15 22:40:29,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:40:29,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149855778] [2023-12-15 22:40:29,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149855778] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:40:29,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [360980113] [2023-12-15 22:40:29,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:40:29,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:40:29,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:40:29,893 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 22:40:29,921 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-15 22:40:30,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:30,181 INFO L262 TraceCheckSpWp]: Trace formula consists of 1446 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-15 22:40:30,186 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:40:30,216 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-15 22:40:30,216 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 22:40:30,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [360980113] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:40:30,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 22:40:30,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [16] total 17 [2023-12-15 22:40:30,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181130621] [2023-12-15 22:40:30,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:40:30,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 22:40:30,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:40:30,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 22:40:30,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2023-12-15 22:40:30,218 INFO L87 Difference]: Start difference. First operand 7415 states and 12931 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-15 22:40:30,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:40:30,699 INFO L93 Difference]: Finished difference Result 22114 states and 39434 transitions. [2023-12-15 22:40:30,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 22:40:30,700 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) Word has length 98 [2023-12-15 22:40:30,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:40:30,837 INFO L225 Difference]: With dead ends: 22114 [2023-12-15 22:40:30,838 INFO L226 Difference]: Without dead ends: 14756 [2023-12-15 22:40:30,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2023-12-15 22:40:30,887 INFO L413 NwaCegarLoop]: 991 mSDtfsCounter, 879 mSDsluCounter, 777 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 879 SdHoareTripleChecker+Valid, 1768 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:40:30,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [879 Valid, 1768 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:40:30,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14756 states. [2023-12-15 22:40:31,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14756 to 14750. [2023-12-15 22:40:31,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14750 states, 11441 states have (on average 1.701075080849576) internal successors, (19462), 11894 states have internal predecessors, (19462), 2666 states have call successors, (2666), 613 states have call predecessors, (2666), 642 states have return successors, (4194), 2658 states have call predecessors, (4194), 2661 states have call successors, (4194) [2023-12-15 22:40:31,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14750 states to 14750 states and 26322 transitions. [2023-12-15 22:40:31,550 INFO L78 Accepts]: Start accepts. Automaton has 14750 states and 26322 transitions. Word has length 98 [2023-12-15 22:40:31,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:40:31,551 INFO L495 AbstractCegarLoop]: Abstraction has 14750 states and 26322 transitions. [2023-12-15 22:40:31,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-15 22:40:31,552 INFO L276 IsEmpty]: Start isEmpty. Operand 14750 states and 26322 transitions. [2023-12-15 22:40:31,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-12-15 22:40:31,573 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:40:31,573 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:40:31,583 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-15 22:40:31,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:40:31,781 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:40:31,781 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:40:31,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1035108269, now seen corresponding path program 1 times [2023-12-15 22:40:31,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:40:31,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784180630] [2023-12-15 22:40:31,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:40:31,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:40:31,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:31,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:40:32,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:32,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:32,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:32,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-15 22:40:32,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:32,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 22:40:32,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:32,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:32,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:32,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:32,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:32,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:32,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:32,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:40:32,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:32,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 22:40:32,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:32,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-15 22:40:32,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:32,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-15 22:40:32,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:32,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:40:32,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:32,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-15 22:40:32,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:32,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-15 22:40:32,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:32,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-15 22:40:32,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:32,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:40:32,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:32,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-15 22:40:32,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:32,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-15 22:40:32,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:32,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-15 22:40:32,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:32,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-15 22:40:32,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:32,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-15 22:40:32,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:32,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-15 22:40:32,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:32,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-12-15 22:40:32,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:32,612 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-12-15 22:40:32,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:40:32,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784180630] [2023-12-15 22:40:32,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784180630] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:40:32,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:40:32,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-15 22:40:32,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060013980] [2023-12-15 22:40:32,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:40:32,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-15 22:40:32,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:40:32,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-15 22:40:32,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-12-15 22:40:32,614 INFO L87 Difference]: Start difference. First operand 14750 states and 26322 transitions. Second operand has 11 states, 11 states have (on average 8.454545454545455) internal successors, (93), 6 states have internal predecessors, (93), 2 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-12-15 22:40:49,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:40:49,866 INFO L93 Difference]: Finished difference Result 54946 states and 123920 transitions. [2023-12-15 22:40:49,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-15 22:40:49,867 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.454545454545455) internal successors, (93), 6 states have internal predecessors, (93), 2 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 164 [2023-12-15 22:40:49,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:40:50,431 INFO L225 Difference]: With dead ends: 54946 [2023-12-15 22:40:50,431 INFO L226 Difference]: Without dead ends: 40208 [2023-12-15 22:40:50,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=212, Invalid=490, Unknown=0, NotChecked=0, Total=702 [2023-12-15 22:40:50,730 INFO L413 NwaCegarLoop]: 553 mSDtfsCounter, 3233 mSDsluCounter, 3113 mSDsCounter, 0 mSdLazyCounter, 6092 mSolverCounterSat, 909 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3368 SdHoareTripleChecker+Valid, 3666 SdHoareTripleChecker+Invalid, 7001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 909 IncrementalHoareTripleChecker+Valid, 6092 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2023-12-15 22:40:50,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3368 Valid, 3666 Invalid, 7001 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [909 Valid, 6092 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2023-12-15 22:40:50,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40208 states. [2023-12-15 22:40:56,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40208 to 20582. [2023-12-15 22:40:56,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20582 states, 15341 states have (on average 1.6682093735740826) internal successors, (25592), 16170 states have internal predecessors, (25592), 4475 states have call successors, (4475), 613 states have call predecessors, (4475), 765 states have return successors, (7557), 4498 states have call predecessors, (7557), 4470 states have call successors, (7557) [2023-12-15 22:40:56,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20582 states to 20582 states and 37624 transitions. [2023-12-15 22:40:56,282 INFO L78 Accepts]: Start accepts. Automaton has 20582 states and 37624 transitions. Word has length 164 [2023-12-15 22:40:56,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:40:56,282 INFO L495 AbstractCegarLoop]: Abstraction has 20582 states and 37624 transitions. [2023-12-15 22:40:56,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.454545454545455) internal successors, (93), 6 states have internal predecessors, (93), 2 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-12-15 22:40:56,283 INFO L276 IsEmpty]: Start isEmpty. Operand 20582 states and 37624 transitions. [2023-12-15 22:40:56,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-15 22:40:56,302 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:40:56,302 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:40:56,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-15 22:40:56,322 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:40:56,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:40:56,323 INFO L85 PathProgramCache]: Analyzing trace with hash 222051460, now seen corresponding path program 1 times [2023-12-15 22:40:56,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:40:56,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432701546] [2023-12-15 22:40:56,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:40:56,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:40:56,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:56,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:40:56,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:56,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:56,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:56,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:40:56,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:56,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:40:56,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:57,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:57,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:57,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:57,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:57,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:57,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:57,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:40:57,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:57,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:57,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:57,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-15 22:40:57,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:57,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-15 22:40:57,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:57,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-15 22:40:57,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:57,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:40:57,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:57,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-15 22:40:57,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:57,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-15 22:40:57,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:57,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-15 22:40:57,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:57,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:40:57,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:57,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-15 22:40:57,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:57,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-15 22:40:57,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:57,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-15 22:40:57,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:57,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-15 22:40:57,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:57,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-15 22:40:57,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:57,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 22:40:57,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:57,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-12-15 22:40:57,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:57,390 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2023-12-15 22:40:57,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:40:57,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432701546] [2023-12-15 22:40:57,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432701546] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:40:57,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:40:57,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-15 22:40:57,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372073126] [2023-12-15 22:40:57,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:40:57,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-15 22:40:57,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:40:57,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-15 22:40:57,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2023-12-15 22:40:57,392 INFO L87 Difference]: Start difference. First operand 20582 states and 37624 transitions. Second operand has 18 states, 16 states have (on average 6.0625) internal successors, (97), 10 states have internal predecessors, (97), 3 states have call successors, (25), 7 states have call predecessors, (25), 6 states have return successors, (24), 5 states have call predecessors, (24), 3 states have call successors, (24) Received shutdown request... [2023-12-15 22:41:11,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-12-15 22:41:11,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 457 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=394, Invalid=1768, Unknown=0, NotChecked=0, Total=2162 [2023-12-15 22:41:11,158 INFO L413 NwaCegarLoop]: 246 mSDtfsCounter, 3537 mSDsluCounter, 1926 mSDsCounter, 0 mSdLazyCounter, 13525 mSolverCounterSat, 603 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3559 SdHoareTripleChecker+Valid, 2172 SdHoareTripleChecker+Invalid, 14128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 603 IncrementalHoareTripleChecker+Valid, 13525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2023-12-15 22:41:11,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3559 Valid, 2172 Invalid, 14128 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [603 Valid, 13525 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2023-12-15 22:41:11,160 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-15 22:41:11,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-15 22:41:11,160 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (20582states) and FLOYD_HOARE automaton (currently 33 states, 18 states before enhancement),while ReachableStatesComputation was computing reachable states (12887 states constructed, input type IntersectNwa). [2023-12-15 22:41:11,163 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:41:11,165 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 22:41:11,167 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 10:41:11 BoogieIcfgContainer [2023-12-15 22:41:11,167 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 22:41:11,167 INFO L158 Benchmark]: Toolchain (without parser) took 54661.06ms. Allocated memory was 288.4MB in the beginning and 3.5GB in the end (delta: 3.2GB). Free memory was 234.0MB in the beginning and 3.0GB in the end (delta: -2.7GB). Peak memory consumption was 1.6GB. Max. memory is 8.0GB. [2023-12-15 22:41:11,167 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 181.4MB. Free memory was 131.7MB in the beginning and 131.6MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 22:41:11,168 INFO L158 Benchmark]: CACSL2BoogieTranslator took 757.13ms. Allocated memory is still 288.4MB. Free memory was 234.0MB in the beginning and 190.3MB in the end (delta: 43.7MB). Peak memory consumption was 43.0MB. Max. memory is 8.0GB. [2023-12-15 22:41:11,168 INFO L158 Benchmark]: Boogie Procedure Inliner took 101.94ms. Allocated memory is still 288.4MB. Free memory was 190.0MB in the beginning and 252.6MB in the end (delta: -62.6MB). Peak memory consumption was 11.1MB. Max. memory is 8.0GB. [2023-12-15 22:41:11,168 INFO L158 Benchmark]: Boogie Preprocessor took 196.96ms. Allocated memory is still 288.4MB. Free memory was 252.6MB in the beginning and 244.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2023-12-15 22:41:11,168 INFO L158 Benchmark]: RCFGBuilder took 1390.61ms. Allocated memory is still 288.4MB. Free memory was 244.2MB in the beginning and 242.7MB in the end (delta: 1.5MB). Peak memory consumption was 102.2MB. Max. memory is 8.0GB. [2023-12-15 22:41:11,169 INFO L158 Benchmark]: TraceAbstraction took 52209.44ms. Allocated memory was 288.4MB in the beginning and 3.5GB in the end (delta: 3.2GB). Free memory was 242.2MB in the beginning and 3.0GB in the end (delta: -2.7GB). Peak memory consumption was 1.6GB. Max. memory is 8.0GB. [2023-12-15 22:41:11,169 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 [2023-12-15 22:41:11,172 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 181.4MB. Free memory was 131.7MB in the beginning and 131.6MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 757.13ms. Allocated memory is still 288.4MB. Free memory was 234.0MB in the beginning and 190.3MB in the end (delta: 43.7MB). Peak memory consumption was 43.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 101.94ms. Allocated memory is still 288.4MB. Free memory was 190.0MB in the beginning and 252.6MB in the end (delta: -62.6MB). Peak memory consumption was 11.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 196.96ms. Allocated memory is still 288.4MB. Free memory was 252.6MB in the beginning and 244.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * RCFGBuilder took 1390.61ms. Allocated memory is still 288.4MB. Free memory was 244.2MB in the beginning and 242.7MB in the end (delta: 1.5MB). Peak memory consumption was 102.2MB. Max. memory is 8.0GB. * TraceAbstraction took 52209.44ms. Allocated memory was 288.4MB in the beginning and 3.5GB in the end (delta: 3.2GB). Free memory was 242.2MB in the beginning and 3.0GB in the end (delta: -2.7GB). Peak memory consumption was 1.6GB. 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,"UnitTests.i","") [414] - GenericResultAtLocation [Line: 516]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [516] - GenericResultAtLocation [Line: 873]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [873] - GenericResultAtLocation [Line: 2432]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [2432] - GenericResultAtLocation [Line: 3093]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [3093] - GenericResultAtLocation [Line: 3105]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3105] - GenericResultAtLocation [Line: 3114]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification9_spec.i","") [3114] - GenericResultAtLocation [Line: 3273]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [3273] - GenericResultAtLocation [Line: 3308]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [3308] * 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: 3110]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 3110). Cancelled while NwaCegarLoop was constructing difference of abstraction (20582states) and FLOYD_HOARE automaton (currently 33 states, 18 states before enhancement),while ReachableStatesComputation was computing reachable states (12887 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 25 procedures, 538 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 52.2s, OverallIterations: 8, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 33.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11339 SdHoareTripleChecker+Valid, 14.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11182 mSDsluCounter, 15458 SdHoareTripleChecker+Invalid, 12.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8897 mSDsCounter, 1541 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 19781 IncrementalHoareTripleChecker+Invalid, 21322 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1541 mSolverCounterUnsat, 6561 mSDtfsCounter, 19781 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1000 GetRequests, 841 SyntacticMatches, 0 SemanticMatches, 159 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 793 ImplicationChecksByTransitivity, 14.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20582occurred in iteration=7, InterpolantAutomatonStates: 40, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 6.9s AutomataMinimizationTime, 7 MinimizatonAttempts, 19646 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 8.0s InterpolantComputationTime, 1482 NumberOfCodeBlocks, 1482 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1468 ConstructedInterpolants, 0 QuantifiedInterpolants, 6754 SizeOfPredicates, 0 NumberOfNonLiveVariables, 8646 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 14 InterpolantComputations, 8 PerfectInterpolantSequences, 290/332 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