/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_product28.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 22:40:15,472 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 22:40:15,558 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 22:40:15,564 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 22:40:15,564 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 22:40:15,593 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 22:40:15,594 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 22:40:15,594 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 22:40:15,594 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 22:40:15,600 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 22:40:15,600 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 22:40:15,600 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 22:40:15,601 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 22:40:15,601 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 22:40:15,601 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 22:40:15,602 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 22:40:15,602 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 22:40:15,602 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 22:40:15,603 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 22:40:15,603 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 22:40:15,603 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 22:40:15,603 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 22:40:15,603 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 22:40:15,604 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 22:40:15,604 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 22:40:15,604 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 22:40:15,604 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 22:40:15,604 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 22:40:15,605 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 22:40:15,605 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 22:40:15,606 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 22:40:15,606 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 22:40:15,606 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 22:40:15,606 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 22:40:15,607 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 22:40:15,607 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 22:40:15,607 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 22:40:15,607 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 22:40:15,607 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 22:40:15,607 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 22:40:15,607 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 22:40:15,608 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 22:40:15,608 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 22:40:15,608 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 22:40:15,823 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 22:40:15,848 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 22:40:15,850 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 22:40:15,851 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 22:40:15,851 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 22:40:15,852 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec9_product28.cil.c [2023-12-15 22:40:17,022 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 22:40:17,281 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 22:40:17,282 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec9_product28.cil.c [2023-12-15 22:40:17,305 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c708d2ce/2882d6ae9e5948a49ce526a89599366b/FLAG7c0c52456 [2023-12-15 22:40:17,318 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c708d2ce/2882d6ae9e5948a49ce526a89599366b [2023-12-15 22:40:17,320 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 22:40:17,321 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 22:40:17,322 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 22:40:17,322 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 22:40:17,326 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 22:40:17,327 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:40:17" (1/1) ... [2023-12-15 22:40:17,328 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61e08666 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:40:17, skipping insertion in model container [2023-12-15 22:40:17,328 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:40:17" (1/1) ... [2023-12-15 22:40:17,396 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 22:40:17,828 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_product28.cil.c[73050,73063] [2023-12-15 22:40:17,831 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 22:40:17,841 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 22:40:17,852 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [48] [2023-12-15 22:40:17,853 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [716] [2023-12-15 22:40:17,853 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [837] [2023-12-15 22:40:17,854 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [875] [2023-12-15 22:40:17,854 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2483] [2023-12-15 22:40:17,854 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification9_spec.i","") [2849] [2023-12-15 22:40:17,854 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [3009] [2023-12-15 22:40:17,854 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [3361] [2023-12-15 22:40:17,855 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [3373] [2023-12-15 22:40:17,855 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3464] [2023-12-15 22:40:17,973 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_product28.cil.c[73050,73063] [2023-12-15 22:40:17,974 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 22:40:18,000 INFO L206 MainTranslator]: Completed translation [2023-12-15 22:40:18,000 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:40:18 WrapperNode [2023-12-15 22:40:18,000 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 22:40:18,001 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 22:40:18,001 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 22:40:18,001 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 22:40:18,005 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:40:18" (1/1) ... [2023-12-15 22:40:18,046 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:40:18" (1/1) ... [2023-12-15 22:40:18,093 INFO L138 Inliner]: procedures = 97, calls = 345, calls flagged for inlining = 27, calls inlined = 23, statements flattened = 1130 [2023-12-15 22:40:18,094 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 22:40:18,094 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 22:40:18,094 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 22:40:18,113 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 22:40:18,123 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:40:18" (1/1) ... [2023-12-15 22:40:18,123 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:40:18" (1/1) ... [2023-12-15 22:40:18,134 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:40:18" (1/1) ... [2023-12-15 22:40:18,157 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. 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 22:40:18,157 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:40:18" (1/1) ... [2023-12-15 22:40:18,157 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:40:18" (1/1) ... [2023-12-15 22:40:18,174 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:40:18" (1/1) ... [2023-12-15 22:40:18,185 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:40:18" (1/1) ... [2023-12-15 22:40:18,190 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:40:18" (1/1) ... [2023-12-15 22:40:18,195 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:40:18" (1/1) ... [2023-12-15 22:40:18,225 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 22:40:18,226 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 22:40:18,226 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 22:40:18,226 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 22:40:18,227 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:40:18" (1/1) ... [2023-12-15 22:40:18,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 22:40:18,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:40:18,282 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 22:40:18,302 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 22:40:18,324 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2023-12-15 22:40:18,324 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2023-12-15 22:40:18,325 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-12-15 22:40:18,325 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-12-15 22:40:18,325 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-12-15 22:40:18,325 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-12-15 22:40:18,325 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-15 22:40:18,325 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-15 22:40:18,326 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-12-15 22:40:18,326 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-12-15 22:40:18,326 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-12-15 22:40:18,326 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-12-15 22:40:18,326 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2023-12-15 22:40:18,326 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2023-12-15 22:40:18,326 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-12-15 22:40:18,327 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-12-15 22:40:18,327 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-12-15 22:40:18,328 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-12-15 22:40:18,330 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 22:40:18,330 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-12-15 22:40:18,330 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-12-15 22:40:18,330 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2023-12-15 22:40:18,331 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2023-12-15 22:40:18,331 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-12-15 22:40:18,331 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-12-15 22:40:18,331 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-15 22:40:18,331 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-15 22:40:18,331 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2023-12-15 22:40:18,331 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2023-12-15 22:40:18,331 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-12-15 22:40:18,331 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-12-15 22:40:18,331 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-12-15 22:40:18,331 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-12-15 22:40:18,332 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-12-15 22:40:18,332 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-12-15 22:40:18,332 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2023-12-15 22:40:18,332 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2023-12-15 22:40:18,332 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-12-15 22:40:18,332 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-12-15 22:40:18,332 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-12-15 22:40:18,332 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-12-15 22:40:18,332 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-12-15 22:40:18,332 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-12-15 22:40:18,332 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-12-15 22:40:18,332 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-12-15 22:40:18,332 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2023-12-15 22:40:18,333 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2023-12-15 22:40:18,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 22:40:18,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-15 22:40:18,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-15 22:40:18,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-15 22:40:18,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-12-15 22:40:18,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-12-15 22:40:18,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-12-15 22:40:18,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-12-15 22:40:18,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-12-15 22:40:18,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-12-15 22:40:18,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-12-15 22:40:18,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-12-15 22:40:18,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-12-15 22:40:18,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-12-15 22:40:18,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-12-15 22:40:18,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2023-12-15 22:40:18,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2023-12-15 22:40:18,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2023-12-15 22:40:18,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2023-12-15 22:40:18,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2023-12-15 22:40:18,336 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-12-15 22:40:18,336 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-12-15 22:40:18,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 22:40:18,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 22:40:18,336 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-12-15 22:40:18,336 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-12-15 22:40:18,337 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__executivefloor [2023-12-15 22:40:18,337 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__executivefloor [2023-12-15 22:40:18,526 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 22:40:18,528 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 22:40:19,532 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 22:40:19,625 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 22:40:19,626 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-15 22:40:19,626 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:40:19 BoogieIcfgContainer [2023-12-15 22:40:19,626 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 22:40:19,628 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 22:40:19,628 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 22:40:19,631 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 22:40:19,631 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 10:40:17" (1/3) ... [2023-12-15 22:40:19,632 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60025125 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:40:19, skipping insertion in model container [2023-12-15 22:40:19,632 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:40:18" (2/3) ... [2023-12-15 22:40:19,632 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60025125 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:40:19, skipping insertion in model container [2023-12-15 22:40:19,632 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:40:19" (3/3) ... [2023-12-15 22:40:19,633 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec9_product28.cil.c [2023-12-15 22:40:19,649 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 22:40:19,650 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 22:40:19,711 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 22:40:19,717 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;@5e38753f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 22:40:19,717 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 22:40:19,723 INFO L276 IsEmpty]: Start isEmpty. Operand has 551 states, 426 states have (on average 1.7230046948356808) internal successors, (734), 449 states have internal predecessors, (734), 97 states have call successors, (97), 26 states have call predecessors, (97), 26 states have return successors, (97), 90 states have call predecessors, (97), 97 states have call successors, (97) [2023-12-15 22:40:19,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-15 22:40:19,735 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:40:19,736 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:40:19,737 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:40:19,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:40:19,742 INFO L85 PathProgramCache]: Analyzing trace with hash -464883476, now seen corresponding path program 1 times [2023-12-15 22:40:19,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:40:19,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192371017] [2023-12-15 22:40:19,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:40:19,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:40:19,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:20,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:40:20,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:20,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:20,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:20,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-15 22:40:20,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:20,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 22:40:20,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:20,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:20,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:20,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:20,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:20,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:40:20,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:20,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:40:20,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:20,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:40:20,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:40:20,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192371017] [2023-12-15 22:40:20,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192371017] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:40:20,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:40:20,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 22:40:20,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244301236] [2023-12-15 22:40:20,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:40:20,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 22:40:20,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:40:20,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 22:40:20,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-15 22:40:20,988 INFO L87 Difference]: Start difference. First operand has 551 states, 426 states have (on average 1.7230046948356808) internal successors, (734), 449 states have internal predecessors, (734), 97 states have call successors, (97), 26 states have call predecessors, (97), 26 states have return successors, (97), 90 states have call predecessors, (97), 97 states have call successors, (97) Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-15 22:40:26,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:40:26,273 INFO L93 Difference]: Finished difference Result 1238 states and 2112 transitions. [2023-12-15 22:40:26,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-15 22:40:26,276 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 52 [2023-12-15 22:40:26,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:40:26,299 INFO L225 Difference]: With dead ends: 1238 [2023-12-15 22:40:26,300 INFO L226 Difference]: Without dead ends: 696 [2023-12-15 22:40:26,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-15 22:40:26,313 INFO L413 NwaCegarLoop]: 303 mSDtfsCounter, 693 mSDsluCounter, 712 mSDsCounter, 0 mSdLazyCounter, 2785 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 776 SdHoareTripleChecker+Valid, 1015 SdHoareTripleChecker+Invalid, 2905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 2785 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-12-15 22:40:26,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [776 Valid, 1015 Invalid, 2905 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [120 Valid, 2785 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2023-12-15 22:40:26,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2023-12-15 22:40:26,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 547. [2023-12-15 22:40:26,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 424 states have (on average 1.7122641509433962) internal successors, (726), 445 states have internal predecessors, (726), 97 states have call successors, (97), 26 states have call predecessors, (97), 25 states have return successors, (92), 89 states have call predecessors, (92), 92 states have call successors, (92) [2023-12-15 22:40:26,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 915 transitions. [2023-12-15 22:40:26,463 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 915 transitions. Word has length 52 [2023-12-15 22:40:26,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:40:26,463 INFO L495 AbstractCegarLoop]: Abstraction has 547 states and 915 transitions. [2023-12-15 22:40:26,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-15 22:40:26,464 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 915 transitions. [2023-12-15 22:40:26,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-15 22:40:26,467 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:40:26,467 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:40:26,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-15 22:40:26,467 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:40:26,468 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:40:26,468 INFO L85 PathProgramCache]: Analyzing trace with hash 2113347507, now seen corresponding path program 1 times [2023-12-15 22:40:26,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:40:26,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558157674] [2023-12-15 22:40:26,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:40:26,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:40:26,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:26,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:40:26,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:26,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:26,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:26,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:40:26,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:27,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:40:27,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:27,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:27,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:27,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:27,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:27,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:40:27,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:27,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:40:27,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:27,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:40:27,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:40:27,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558157674] [2023-12-15 22:40:27,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558157674] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:40:27,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:40:27,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 22:40:27,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503965051] [2023-12-15 22:40:27,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:40:27,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 22:40:27,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:40:27,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 22:40:27,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-15 22:40:27,148 INFO L87 Difference]: Start difference. First operand 547 states and 915 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-15 22:40:31,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:40:31,851 INFO L93 Difference]: Finished difference Result 1231 states and 2085 transitions. [2023-12-15 22:40:31,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-15 22:40:31,851 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 54 [2023-12-15 22:40:31,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:40:31,858 INFO L225 Difference]: With dead ends: 1231 [2023-12-15 22:40:31,858 INFO L226 Difference]: Without dead ends: 696 [2023-12-15 22:40:31,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-15 22:40:31,861 INFO L413 NwaCegarLoop]: 303 mSDtfsCounter, 689 mSDsluCounter, 709 mSDsCounter, 0 mSdLazyCounter, 2774 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 772 SdHoareTripleChecker+Valid, 1012 SdHoareTripleChecker+Invalid, 2895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 2774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-12-15 22:40:31,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [772 Valid, 1012 Invalid, 2895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 2774 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-12-15 22:40:31,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2023-12-15 22:40:31,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 547. [2023-12-15 22:40:31,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 424 states have (on average 1.7099056603773586) internal successors, (725), 445 states have internal predecessors, (725), 97 states have call successors, (97), 26 states have call predecessors, (97), 25 states have return successors, (92), 89 states have call predecessors, (92), 92 states have call successors, (92) [2023-12-15 22:40:31,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 914 transitions. [2023-12-15 22:40:31,967 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 914 transitions. Word has length 54 [2023-12-15 22:40:31,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:40:31,967 INFO L495 AbstractCegarLoop]: Abstraction has 547 states and 914 transitions. [2023-12-15 22:40:31,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-15 22:40:31,968 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 914 transitions. [2023-12-15 22:40:31,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-15 22:40:31,974 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:40:31,974 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:40:31,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-15 22:40:31,974 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:40:31,975 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:40:31,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1053526157, now seen corresponding path program 1 times [2023-12-15 22:40:31,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:40:31,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844406105] [2023-12-15 22:40:31,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:40:31,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:40:31,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:32,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:40:32,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:32,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:32,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:32,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-15 22:40:32,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:32,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-15 22:40:32,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:32,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:32,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:32,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:32,606 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 8 [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 12 [2023-12-15 22:40:32,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:32,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:40:32,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:40:32,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844406105] [2023-12-15 22:40:32,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844406105] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:40:32,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:40:32,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 22:40:32,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57711057] [2023-12-15 22:40:32,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:40:32,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 22:40:32,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:40:32,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 22:40:32,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-15 22:40:32,619 INFO L87 Difference]: Start difference. First operand 547 states and 914 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-15 22:40:37,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:40:37,023 INFO L93 Difference]: Finished difference Result 1231 states and 2084 transitions. [2023-12-15 22:40:37,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-15 22:40:37,024 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 55 [2023-12-15 22:40:37,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:40:37,030 INFO L225 Difference]: With dead ends: 1231 [2023-12-15 22:40:37,030 INFO L226 Difference]: Without dead ends: 696 [2023-12-15 22:40:37,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-15 22:40:37,034 INFO L413 NwaCegarLoop]: 306 mSDtfsCounter, 687 mSDsluCounter, 715 mSDsCounter, 0 mSdLazyCounter, 2769 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 770 SdHoareTripleChecker+Valid, 1021 SdHoareTripleChecker+Invalid, 2888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 2769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-12-15 22:40:37,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [770 Valid, 1021 Invalid, 2888 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 2769 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-12-15 22:40:37,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2023-12-15 22:40:37,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 547. [2023-12-15 22:40:37,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 424 states have (on average 1.7075471698113207) internal successors, (724), 445 states have internal predecessors, (724), 97 states have call successors, (97), 26 states have call predecessors, (97), 25 states have return successors, (92), 89 states have call predecessors, (92), 92 states have call successors, (92) [2023-12-15 22:40:37,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 913 transitions. [2023-12-15 22:40:37,144 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 913 transitions. Word has length 55 [2023-12-15 22:40:37,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:40:37,144 INFO L495 AbstractCegarLoop]: Abstraction has 547 states and 913 transitions. [2023-12-15 22:40:37,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-15 22:40:37,144 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 913 transitions. [2023-12-15 22:40:37,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-15 22:40:37,145 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:40:37,146 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:40:37,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-15 22:40:37,146 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:40:37,146 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:40:37,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1148538697, now seen corresponding path program 1 times [2023-12-15 22:40:37,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:40:37,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021972528] [2023-12-15 22:40:37,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:40:37,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:40:37,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:37,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:40:37,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:37,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:37,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:37,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-15 22:40:37,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:37,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-12-15 22:40:37,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:37,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:37,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:37,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:37,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:37,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:40:37,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:37,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:40:37,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:37,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:40:37,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:40:37,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021972528] [2023-12-15 22:40:37,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021972528] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:40:37,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:40:37,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 22:40:37,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296998] [2023-12-15 22:40:37,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:40:37,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 22:40:37,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:40:37,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 22:40:37,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-15 22:40:37,788 INFO L87 Difference]: Start difference. First operand 547 states and 913 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-15 22:40:42,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:40:42,015 INFO L93 Difference]: Finished difference Result 1231 states and 2083 transitions. [2023-12-15 22:40:42,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-15 22:40:42,016 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 56 [2023-12-15 22:40:42,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:40:42,021 INFO L225 Difference]: With dead ends: 1231 [2023-12-15 22:40:42,021 INFO L226 Difference]: Without dead ends: 696 [2023-12-15 22:40:42,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-15 22:40:42,034 INFO L413 NwaCegarLoop]: 311 mSDtfsCounter, 1136 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 2630 mSolverCounterSat, 253 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1219 SdHoareTripleChecker+Valid, 1034 SdHoareTripleChecker+Invalid, 2883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 253 IncrementalHoareTripleChecker+Valid, 2630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-12-15 22:40:42,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1219 Valid, 1034 Invalid, 2883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [253 Valid, 2630 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-12-15 22:40:42,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2023-12-15 22:40:42,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 547. [2023-12-15 22:40:42,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 424 states have (on average 1.705188679245283) internal successors, (723), 445 states have internal predecessors, (723), 97 states have call successors, (97), 26 states have call predecessors, (97), 25 states have return successors, (92), 89 states have call predecessors, (92), 92 states have call successors, (92) [2023-12-15 22:40:42,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 912 transitions. [2023-12-15 22:40:42,116 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 912 transitions. Word has length 56 [2023-12-15 22:40:42,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:40:42,118 INFO L495 AbstractCegarLoop]: Abstraction has 547 states and 912 transitions. [2023-12-15 22:40:42,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-15 22:40:42,118 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 912 transitions. [2023-12-15 22:40:42,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-15 22:40:42,120 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:40:42,120 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:40:42,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-15 22:40:42,120 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:40:42,121 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:40:42,121 INFO L85 PathProgramCache]: Analyzing trace with hash -505136905, now seen corresponding path program 1 times [2023-12-15 22:40:42,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:40:42,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100773191] [2023-12-15 22:40:42,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:40:42,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:40:42,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:42,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:40:42,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:42,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:42,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:42,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-15 22:40:42,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:42,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-15 22:40:42,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:42,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:42,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:42,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:42,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:42,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:40:42,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:42,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:40:42,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:42,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:40:42,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:40:42,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100773191] [2023-12-15 22:40:42,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100773191] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:40:42,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:40:42,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 22:40:42,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942944000] [2023-12-15 22:40:42,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:40:42,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 22:40:42,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:40:42,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 22:40:42,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-15 22:40:42,713 INFO L87 Difference]: Start difference. First operand 547 states and 912 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-15 22:40:46,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:40:46,790 INFO L93 Difference]: Finished difference Result 1231 states and 2082 transitions. [2023-12-15 22:40:46,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-15 22:40:46,792 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 57 [2023-12-15 22:40:46,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:40:46,797 INFO L225 Difference]: With dead ends: 1231 [2023-12-15 22:40:46,797 INFO L226 Difference]: Without dead ends: 696 [2023-12-15 22:40:46,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-15 22:40:46,800 INFO L413 NwaCegarLoop]: 299 mSDtfsCounter, 1140 mSDsluCounter, 699 mSDsCounter, 0 mSdLazyCounter, 2612 mSolverCounterSat, 267 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1223 SdHoareTripleChecker+Valid, 998 SdHoareTripleChecker+Invalid, 2879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 267 IncrementalHoareTripleChecker+Valid, 2612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-12-15 22:40:46,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1223 Valid, 998 Invalid, 2879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [267 Valid, 2612 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-12-15 22:40:46,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2023-12-15 22:40:46,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 547. [2023-12-15 22:40:46,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 424 states have (on average 1.7028301886792452) internal successors, (722), 445 states have internal predecessors, (722), 97 states have call successors, (97), 26 states have call predecessors, (97), 25 states have return successors, (92), 89 states have call predecessors, (92), 92 states have call successors, (92) [2023-12-15 22:40:46,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 911 transitions. [2023-12-15 22:40:46,868 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 911 transitions. Word has length 57 [2023-12-15 22:40:46,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:40:46,868 INFO L495 AbstractCegarLoop]: Abstraction has 547 states and 911 transitions. [2023-12-15 22:40:46,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-15 22:40:46,868 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 911 transitions. [2023-12-15 22:40:46,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-15 22:40:46,869 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:40:46,869 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:40:46,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-15 22:40:46,870 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:40:46,870 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:40:46,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1554272699, now seen corresponding path program 1 times [2023-12-15 22:40:46,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:40:46,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76439966] [2023-12-15 22:40:46,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:40:46,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:40:46,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:47,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:40:47,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:47,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:47,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:47,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:40:47,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:47,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-15 22:40:47,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:47,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:47,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:47,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:47,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:47,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:40:47,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:47,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:40:47,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:47,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:40:47,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:40:47,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76439966] [2023-12-15 22:40:47,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76439966] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:40:47,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:40:47,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-15 22:40:47,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412539782] [2023-12-15 22:40:47,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:40:47,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-15 22:40:47,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:40:47,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-15 22:40:47,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:40:47,552 INFO L87 Difference]: Start difference. First operand 547 states and 911 transitions. Second operand has 10 states, 9 states have (on average 4.555555555555555) internal successors, (41), 7 states have internal predecessors, (41), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-15 22:40:53,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:40:53,418 INFO L93 Difference]: Finished difference Result 1207 states and 2031 transitions. [2023-12-15 22:40:53,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-15 22:40:53,419 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.555555555555555) internal successors, (41), 7 states have internal predecessors, (41), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 58 [2023-12-15 22:40:53,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:40:53,424 INFO L225 Difference]: With dead ends: 1207 [2023-12-15 22:40:53,424 INFO L226 Difference]: Without dead ends: 720 [2023-12-15 22:40:53,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2023-12-15 22:40:53,428 INFO L413 NwaCegarLoop]: 306 mSDtfsCounter, 802 mSDsluCounter, 1811 mSDsCounter, 0 mSdLazyCounter, 5786 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 889 SdHoareTripleChecker+Valid, 2117 SdHoareTripleChecker+Invalid, 5909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 5786 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-12-15 22:40:53,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [889 Valid, 2117 Invalid, 5909 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [123 Valid, 5786 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-12-15 22:40:53,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2023-12-15 22:40:53,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 559. [2023-12-15 22:40:53,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 433 states have (on average 1.699769053117783) internal successors, (736), 456 states have internal predecessors, (736), 98 states have call successors, (98), 26 states have call predecessors, (98), 27 states have return successors, (95), 90 states have call predecessors, (95), 93 states have call successors, (95) [2023-12-15 22:40:53,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 929 transitions. [2023-12-15 22:40:53,514 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 929 transitions. Word has length 58 [2023-12-15 22:40:53,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:40:53,515 INFO L495 AbstractCegarLoop]: Abstraction has 559 states and 929 transitions. [2023-12-15 22:40:53,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.555555555555555) internal successors, (41), 7 states have internal predecessors, (41), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-15 22:40:53,515 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 929 transitions. [2023-12-15 22:40:53,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-15 22:40:53,518 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:40:53,518 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:40:53,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-15 22:40:53,518 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:40:53,518 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:40:53,518 INFO L85 PathProgramCache]: Analyzing trace with hash -769755140, now seen corresponding path program 1 times [2023-12-15 22:40:53,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:40:53,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640667211] [2023-12-15 22:40:53,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:40:53,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:40:53,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:53,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:40:53,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:53,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:53,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:53,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:40:53,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:54,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-15 22:40:54,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:54,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:54,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:54,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:54,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:54,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:40:54,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:54,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:40:54,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:54,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:40:54,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:40:54,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640667211] [2023-12-15 22:40:54,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640667211] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:40:54,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:40:54,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 22:40:54,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269906839] [2023-12-15 22:40:54,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:40:54,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 22:40:54,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:40:54,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 22:40:54,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-15 22:40:54,043 INFO L87 Difference]: Start difference. First operand 559 states and 929 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-15 22:40:57,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:40:57,552 INFO L93 Difference]: Finished difference Result 1219 states and 2052 transitions. [2023-12-15 22:40:57,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 22:40:57,553 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 58 [2023-12-15 22:40:57,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:40:57,557 INFO L225 Difference]: With dead ends: 1219 [2023-12-15 22:40:57,557 INFO L226 Difference]: Without dead ends: 716 [2023-12-15 22:40:57,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-15 22:40:57,559 INFO L413 NwaCegarLoop]: 307 mSDtfsCounter, 1226 mSDsluCounter, 706 mSDsCounter, 0 mSdLazyCounter, 2544 mSolverCounterSat, 259 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1309 SdHoareTripleChecker+Valid, 1013 SdHoareTripleChecker+Invalid, 2803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 259 IncrementalHoareTripleChecker+Valid, 2544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-12-15 22:40:57,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1309 Valid, 1013 Invalid, 2803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [259 Valid, 2544 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-12-15 22:40:57,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2023-12-15 22:40:57,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 559. [2023-12-15 22:40:57,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 433 states have (on average 1.6882217090069285) internal successors, (731), 456 states have internal predecessors, (731), 98 states have call successors, (98), 26 states have call predecessors, (98), 27 states have return successors, (95), 90 states have call predecessors, (95), 93 states have call successors, (95) [2023-12-15 22:40:57,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 924 transitions. [2023-12-15 22:40:57,639 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 924 transitions. Word has length 58 [2023-12-15 22:40:57,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:40:57,640 INFO L495 AbstractCegarLoop]: Abstraction has 559 states and 924 transitions. [2023-12-15 22:40:57,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-15 22:40:57,640 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 924 transitions. [2023-12-15 22:40:57,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-15 22:40:57,641 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:40:57,641 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:40:57,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-15 22:40:57,641 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:40:57,642 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:40:57,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1687349652, now seen corresponding path program 1 times [2023-12-15 22:40:57,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:40:57,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836598104] [2023-12-15 22:40:57,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:40:57,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:40:57,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:57,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:40:57,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:57,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:57,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:57,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:40:57,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:58,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 22:40:58,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:58,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:58,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:58,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:58,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:58,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:40:58,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:58,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:40:58,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:58,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:40:58,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:40:58,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836598104] [2023-12-15 22:40:58,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836598104] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:40:58,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:40:58,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 22:40:58,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407166885] [2023-12-15 22:40:58,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:40:58,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 22:40:58,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:40:58,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 22:40:58,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-15 22:40:58,165 INFO L87 Difference]: Start difference. First operand 559 states and 924 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-15 22:41:01,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:41:01,586 INFO L93 Difference]: Finished difference Result 1219 states and 2047 transitions. [2023-12-15 22:41:01,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 22:41:01,586 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 59 [2023-12-15 22:41:01,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:41:01,590 INFO L225 Difference]: With dead ends: 1219 [2023-12-15 22:41:01,590 INFO L226 Difference]: Without dead ends: 716 [2023-12-15 22:41:01,592 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-15 22:41:01,593 INFO L413 NwaCegarLoop]: 310 mSDtfsCounter, 1219 mSDsluCounter, 712 mSDsCounter, 0 mSdLazyCounter, 2522 mSolverCounterSat, 258 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1302 SdHoareTripleChecker+Valid, 1022 SdHoareTripleChecker+Invalid, 2780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 258 IncrementalHoareTripleChecker+Valid, 2522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:41:01,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1302 Valid, 1022 Invalid, 2780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [258 Valid, 2522 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-12-15 22:41:01,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2023-12-15 22:41:01,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 559. [2023-12-15 22:41:01,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 433 states have (on average 1.6766743648960738) internal successors, (726), 456 states have internal predecessors, (726), 98 states have call successors, (98), 26 states have call predecessors, (98), 27 states have return successors, (95), 90 states have call predecessors, (95), 93 states have call successors, (95) [2023-12-15 22:41:01,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 919 transitions. [2023-12-15 22:41:01,674 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 919 transitions. Word has length 59 [2023-12-15 22:41:01,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:41:01,674 INFO L495 AbstractCegarLoop]: Abstraction has 559 states and 919 transitions. [2023-12-15 22:41:01,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-15 22:41:01,674 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 919 transitions. [2023-12-15 22:41:01,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-15 22:41:01,675 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:41:01,675 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:41:01,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-15 22:41:01,676 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:41:01,676 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:41:01,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1350043049, now seen corresponding path program 1 times [2023-12-15 22:41:01,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:41:01,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262048774] [2023-12-15 22:41:01,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:41:01,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:41:01,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:41:01,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:41:01,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:41:01,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:41:01,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:41:01,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:41:01,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:41:02,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-15 22:41:02,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:41:02,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:41:02,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:41:02,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:41:02,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:41:02,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:41:02,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:41:02,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:41:02,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:41:02,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:41:02,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:41:02,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262048774] [2023-12-15 22:41:02,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262048774] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:41:02,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:41:02,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 22:41:02,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923250831] [2023-12-15 22:41:02,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:41:02,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 22:41:02,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:41:02,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 22:41:02,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-15 22:41:02,260 INFO L87 Difference]: Start difference. First operand 559 states and 919 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-15 22:41:06,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:41:06,060 INFO L93 Difference]: Finished difference Result 1219 states and 2042 transitions. [2023-12-15 22:41:06,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 22:41:06,061 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 60 [2023-12-15 22:41:06,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:41:06,065 INFO L225 Difference]: With dead ends: 1219 [2023-12-15 22:41:06,065 INFO L226 Difference]: Without dead ends: 716 [2023-12-15 22:41:06,067 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-15 22:41:06,067 INFO L413 NwaCegarLoop]: 305 mSDtfsCounter, 763 mSDsluCounter, 704 mSDsCounter, 0 mSdLazyCounter, 2649 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 846 SdHoareTripleChecker+Valid, 1009 SdHoareTripleChecker+Invalid, 2771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 2649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-12-15 22:41:06,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [846 Valid, 1009 Invalid, 2771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 2649 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-12-15 22:41:06,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2023-12-15 22:41:06,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 559. [2023-12-15 22:41:06,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 433 states have (on average 1.6651270207852193) internal successors, (721), 456 states have internal predecessors, (721), 98 states have call successors, (98), 26 states have call predecessors, (98), 27 states have return successors, (95), 90 states have call predecessors, (95), 93 states have call successors, (95) [2023-12-15 22:41:06,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 914 transitions. [2023-12-15 22:41:06,149 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 914 transitions. Word has length 60 [2023-12-15 22:41:06,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:41:06,149 INFO L495 AbstractCegarLoop]: Abstraction has 559 states and 914 transitions. [2023-12-15 22:41:06,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-15 22:41:06,149 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 914 transitions. [2023-12-15 22:41:06,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-15 22:41:06,150 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:41:06,150 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:41:06,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-15 22:41:06,150 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:41:06,151 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:41:06,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1653039879, now seen corresponding path program 1 times [2023-12-15 22:41:06,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:41:06,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095139377] [2023-12-15 22:41:06,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:41:06,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:41:06,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:41:06,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:41:06,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:41:06,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:41:06,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:41:06,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:41:06,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:41:06,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:41:06,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:41:06,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:41:06,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:41:06,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:41:06,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:41:06,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:41:06,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:41:06,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:41:06,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:41:06,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:41:06,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:41:06,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095139377] [2023-12-15 22:41:06,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095139377] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:41:06,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:41:06,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-15 22:41:06,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111965906] [2023-12-15 22:41:06,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:41:06,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-15 22:41:06,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:41:06,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-15 22:41:06,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2023-12-15 22:41:06,850 INFO L87 Difference]: Start difference. First operand 559 states and 914 transitions. Second operand has 12 states, 11 states have (on average 4.0) internal successors, (44), 8 states have internal predecessors, (44), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) Received shutdown request... [2023-12-15 22:41:13,331 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 22:41:13,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-15 22:41:13,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=73, Invalid=389, Unknown=0, NotChecked=0, Total=462 [2023-12-15 22:41:13,333 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 1226 mSDsluCounter, 2017 mSDsCounter, 0 mSdLazyCounter, 6836 mSolverCounterSat, 237 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1302 SdHoareTripleChecker+Valid, 2281 SdHoareTripleChecker+Invalid, 7073 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 237 IncrementalHoareTripleChecker+Valid, 6836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:41:13,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1302 Valid, 2281 Invalid, 7073 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [237 Valid, 6836 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2023-12-15 22:41:13,334 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-15 22:41:13,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-15 22:41:13,335 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (559states) and FLOYD_HOARE automaton (currently 17 states, 12 states before enhancement),while ReachableStatesComputation was computing reachable states (1131 states constructed, input type IntersectNwa). [2023-12-15 22:41:13,339 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:41:13,341 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 22:41:13,343 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 10:41:13 BoogieIcfgContainer [2023-12-15 22:41:13,343 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 22:41:13,343 INFO L158 Benchmark]: Toolchain (without parser) took 56022.33ms. Allocated memory was 196.1MB in the beginning and 451.9MB in the end (delta: 255.9MB). Free memory was 150.4MB in the beginning and 216.6MB in the end (delta: -66.2MB). Peak memory consumption was 265.2MB. Max. memory is 8.0GB. [2023-12-15 22:41:13,343 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 196.1MB. Free memory is still 153.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 22:41:13,344 INFO L158 Benchmark]: CACSL2BoogieTranslator took 678.62ms. Allocated memory is still 196.1MB. Free memory was 150.0MB in the beginning and 105.9MB in the end (delta: 44.2MB). Peak memory consumption was 44.0MB. Max. memory is 8.0GB. [2023-12-15 22:41:13,344 INFO L158 Benchmark]: Boogie Procedure Inliner took 92.65ms. Allocated memory is still 196.1MB. Free memory was 105.9MB in the beginning and 100.1MB in the end (delta: 5.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-15 22:41:13,344 INFO L158 Benchmark]: Boogie Preprocessor took 131.16ms. Allocated memory is still 196.1MB. Free memory was 100.1MB in the beginning and 160.1MB in the end (delta: -60.0MB). Peak memory consumption was 10.7MB. Max. memory is 8.0GB. [2023-12-15 22:41:13,345 INFO L158 Benchmark]: RCFGBuilder took 1400.07ms. Allocated memory was 196.1MB in the beginning and 257.9MB in the end (delta: 61.9MB). Free memory was 160.1MB in the beginning and 201.0MB in the end (delta: -41.0MB). Peak memory consumption was 84.4MB. Max. memory is 8.0GB. [2023-12-15 22:41:13,345 INFO L158 Benchmark]: TraceAbstraction took 53715.06ms. Allocated memory was 257.9MB in the beginning and 451.9MB in the end (delta: 194.0MB). Free memory was 200.5MB in the beginning and 216.6MB in the end (delta: -16.1MB). Peak memory consumption was 251.8MB. Max. memory is 8.0GB. [2023-12-15 22:41:13,346 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 196.1MB. Free memory is still 153.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 678.62ms. Allocated memory is still 196.1MB. Free memory was 150.0MB in the beginning and 105.9MB in the end (delta: 44.2MB). Peak memory consumption was 44.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 92.65ms. Allocated memory is still 196.1MB. Free memory was 105.9MB in the beginning and 100.1MB in the end (delta: 5.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 131.16ms. Allocated memory is still 196.1MB. Free memory was 100.1MB in the beginning and 160.1MB in the end (delta: -60.0MB). Peak memory consumption was 10.7MB. Max. memory is 8.0GB. * RCFGBuilder took 1400.07ms. Allocated memory was 196.1MB in the beginning and 257.9MB in the end (delta: 61.9MB). Free memory was 160.1MB in the beginning and 201.0MB in the end (delta: -41.0MB). Peak memory consumption was 84.4MB. Max. memory is 8.0GB. * TraceAbstraction took 53715.06ms. Allocated memory was 257.9MB in the beginning and 451.9MB in the end (delta: 194.0MB). Free memory was 200.5MB in the beginning and 216.6MB in the end (delta: -16.1MB). Peak memory consumption was 251.8MB. 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,"Floor.i","") [48] - GenericResultAtLocation [Line: 716]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [716] - GenericResultAtLocation [Line: 837]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [837] - GenericResultAtLocation [Line: 875]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [875] - GenericResultAtLocation [Line: 2483]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2483] - GenericResultAtLocation [Line: 2849]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification9_spec.i","") [2849] - GenericResultAtLocation [Line: 3009]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [3009] - GenericResultAtLocation [Line: 3361]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [3361] - GenericResultAtLocation [Line: 3373]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [3373] - GenericResultAtLocation [Line: 3464]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3464] * 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: 3469]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 3469). Cancelled while NwaCegarLoop was constructing difference of abstraction (559states) and FLOYD_HOARE automaton (currently 17 states, 12 states before enhancement),while ReachableStatesComputation was computing reachable states (1131 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 27 procedures, 551 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 53.7s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 46.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10408 SdHoareTripleChecker+Valid, 36.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9581 mSDsluCounter, 12522 SdHoareTripleChecker+Invalid, 32.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9508 mSDsCounter, 1879 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 33907 IncrementalHoareTripleChecker+Invalid, 35786 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1879 mSolverCounterUnsat, 3014 mSDtfsCounter, 33907 mSolverCounterSat, 0.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 247 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 12.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=559occurred in iteration=6, InterpolantAutomatonStates: 64, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 9 MinimizatonAttempts, 1377 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 6.3s InterpolantComputationTime, 570 NumberOfCodeBlocks, 570 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 560 ConstructedInterpolants, 0 QuantifiedInterpolants, 6168 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 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