/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 false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/product-lines/elevator_spec14_product27.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 05:22:54,956 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 05:22:55,027 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 05:22:55,031 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 05:22:55,032 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 05:22:55,054 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 05:22:55,054 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 05:22:55,054 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 05:22:55,055 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 05:22:55,058 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 05:22:55,058 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 05:22:55,058 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 05:22:55,058 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 05:22:55,059 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 05:22:55,059 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 05:22:55,059 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 05:22:55,060 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 05:22:55,060 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 05:22:55,060 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 05:22:55,060 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 05:22:55,060 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 05:22:55,061 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 05:22:55,061 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 05:22:55,061 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 05:22:55,061 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 05:22:55,061 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 05:22:55,061 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 05:22:55,062 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 05:22:55,062 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 05:22:55,062 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 05:22:55,063 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 05:22:55,063 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 05:22:55,063 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 05:22:55,063 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 05:22:55,063 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 05:22:55,063 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 05:22:55,064 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 05:22:55,064 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 05:22:55,064 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 05:22:55,064 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 05:22:55,064 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 05:22:55,064 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 05:22:55,064 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 05:22:55,064 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 05:22:55,227 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 05:22:55,242 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 05:22:55,244 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 05:22:55,244 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 05:22:55,245 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 05:22:55,245 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec14_product27.cil.c [2023-12-16 05:22:56,195 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 05:22:56,421 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 05:22:56,421 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec14_product27.cil.c [2023-12-16 05:22:56,434 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f208320ba/5ce93e2005f64993a0f11489d6569235/FLAG1fb29799a [2023-12-16 05:22:56,443 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f208320ba/5ce93e2005f64993a0f11489d6569235 [2023-12-16 05:22:56,445 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 05:22:56,446 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 05:22:56,447 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 05:22:56,447 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 05:22:56,453 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 05:22:56,454 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:22:56" (1/1) ... [2023-12-16 05:22:56,455 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14997e46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:22:56, skipping insertion in model container [2023-12-16 05:22:56,455 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:22:56" (1/1) ... [2023-12-16 05:22:56,513 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 05:22:56,648 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_spec14_product27.cil.c[1546,1559] [2023-12-16 05:22:56,877 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 05:22:56,890 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 05:22:56,896 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [48] [2023-12-16 05:22:56,897 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [57] [2023-12-16 05:22:56,897 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1620] [2023-12-16 05:22:56,897 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [1975] [2023-12-16 05:22:56,897 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2066] [2023-12-16 05:22:56,898 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2432] [2023-12-16 05:22:56,898 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2467] [2023-12-16 05:22:56,898 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification14_spec.i","") [2481] [2023-12-16 05:22:56,898 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [2517] [2023-12-16 05:22:56,898 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [2635] [2023-12-16 05:22:56,900 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_spec14_product27.cil.c[1546,1559] [2023-12-16 05:22:56,966 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 05:22:56,994 INFO L206 MainTranslator]: Completed translation [2023-12-16 05:22:56,995 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:22:56 WrapperNode [2023-12-16 05:22:56,995 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 05:22:56,996 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 05:22:56,996 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 05:22:56,996 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 05:22:57,000 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:22:56" (1/1) ... [2023-12-16 05:22:57,029 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:22:56" (1/1) ... [2023-12-16 05:22:57,059 INFO L138 Inliner]: procedures = 92, calls = 335, calls flagged for inlining = 28, calls inlined = 25, statements flattened = 1094 [2023-12-16 05:22:57,060 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 05:22:57,060 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 05:22:57,060 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 05:22:57,060 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 05:22:57,068 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:22:56" (1/1) ... [2023-12-16 05:22:57,068 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:22:56" (1/1) ... [2023-12-16 05:22:57,072 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:22:56" (1/1) ... [2023-12-16 05:22:57,114 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]. [2023-12-16 05:22:57,114 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:22:56" (1/1) ... [2023-12-16 05:22:57,114 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:22:56" (1/1) ... [2023-12-16 05:22:57,134 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:22:56" (1/1) ... [2023-12-16 05:22:57,142 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:22:56" (1/1) ... [2023-12-16 05:22:57,145 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:22:56" (1/1) ... [2023-12-16 05:22:57,148 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:22:56" (1/1) ... [2023-12-16 05:22:57,153 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 05:22:57,154 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 05:22:57,154 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 05:22:57,154 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 05:22:57,155 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:22:56" (1/1) ... [2023-12-16 05:22:57,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 05:22:57,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:22:57,191 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 05:22:57,232 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 05:22:57,237 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 05:22:57,238 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-12-16 05:22:57,238 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-12-16 05:22:57,238 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2023-12-16 05:22:57,238 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2023-12-16 05:22:57,238 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-12-16 05:22:57,238 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-12-16 05:22:57,238 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2023-12-16 05:22:57,238 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2023-12-16 05:22:57,238 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-12-16 05:22:57,239 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-12-16 05:22:57,239 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2023-12-16 05:22:57,239 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2023-12-16 05:22:57,239 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-12-16 05:22:57,239 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-12-16 05:22:57,239 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-16 05:22:57,239 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-16 05:22:57,240 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-16 05:22:57,242 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-16 05:22:57,242 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-12-16 05:22:57,242 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-12-16 05:22:57,242 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-12-16 05:22:57,242 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-12-16 05:22:57,242 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-12-16 05:22:57,242 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-12-16 05:22:57,242 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2023-12-16 05:22:57,242 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2023-12-16 05:22:57,243 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-12-16 05:22:57,243 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-12-16 05:22:57,243 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2023-12-16 05:22:57,243 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2023-12-16 05:22:57,243 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-12-16 05:22:57,243 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-12-16 05:22:57,243 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-12-16 05:22:57,243 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-12-16 05:22:57,243 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-12-16 05:22:57,243 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-12-16 05:22:57,243 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-12-16 05:22:57,243 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-12-16 05:22:57,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 05:22:57,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-16 05:22:57,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-16 05:22:57,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-16 05:22:57,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-12-16 05:22:57,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-12-16 05:22:57,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-12-16 05:22:57,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-12-16 05:22:57,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-12-16 05:22:57,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-12-16 05:22:57,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-12-16 05:22:57,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-12-16 05:22:57,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-12-16 05:22:57,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-12-16 05:22:57,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-12-16 05:22:57,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2023-12-16 05:22:57,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2023-12-16 05:22:57,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2023-12-16 05:22:57,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2023-12-16 05:22:57,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2023-12-16 05:22:57,244 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-12-16 05:22:57,245 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-12-16 05:22:57,245 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-12-16 05:22:57,245 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-12-16 05:22:57,245 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-12-16 05:22:57,245 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-12-16 05:22:57,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 05:22:57,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 05:22:57,246 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-12-16 05:22:57,246 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-12-16 05:22:57,404 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 05:22:57,406 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 05:22:58,164 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 05:22:58,223 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 05:22:58,224 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 05:22:58,224 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:22:58 BoogieIcfgContainer [2023-12-16 05:22:58,224 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 05:22:58,228 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 05:22:58,228 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 05:22:58,230 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 05:22:58,230 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 05:22:56" (1/3) ... [2023-12-16 05:22:58,231 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ecd84c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:22:58, skipping insertion in model container [2023-12-16 05:22:58,231 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:22:56" (2/3) ... [2023-12-16 05:22:58,231 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ecd84c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:22:58, skipping insertion in model container [2023-12-16 05:22:58,231 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:22:58" (3/3) ... [2023-12-16 05:22:58,232 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec14_product27.cil.c [2023-12-16 05:22:58,244 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 05:22:58,245 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 05:22:58,282 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 05:22:58,286 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;@49431ca9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 05:22:58,286 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 05:22:58,291 INFO L276 IsEmpty]: Start isEmpty. Operand has 519 states, 401 states have (on average 1.71571072319202) internal successors, (688), 417 states have internal predecessors, (688), 93 states have call successors, (93), 23 states have call predecessors, (93), 23 states have return successors, (93), 91 states have call predecessors, (93), 93 states have call successors, (93) [2023-12-16 05:22:58,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-16 05:22:58,309 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:22:58,309 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:22:58,310 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:22:58,313 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:22:58,313 INFO L85 PathProgramCache]: Analyzing trace with hash -2100219171, now seen corresponding path program 1 times [2023-12-16 05:22:58,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:22:58,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485779543] [2023-12-16 05:22:58,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:22:58,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:22:58,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:22:58,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:22:58,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:22:58,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:22:58,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:22:58,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-16 05:22:58,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:22:58,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-12-16 05:22:58,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:22:58,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:22:58,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:22:58,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-16 05:22:58,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:22:58,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 05:22:58,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:22:58,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:22:59,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:22:59,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:22:59,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:22:59,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:22:59,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:22:59,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-16 05:22:59,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:22:59,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-16 05:22:59,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:22:59,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:22:59,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:22:59,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-16 05:22:59,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:22:59,036 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 05:22:59,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:22:59,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485779543] [2023-12-16 05:22:59,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485779543] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:22:59,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:22:59,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 05:22:59,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239965385] [2023-12-16 05:22:59,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:22:59,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 05:22:59,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:22:59,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 05:22:59,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 05:22:59,070 INFO L87 Difference]: Start difference. First operand has 519 states, 401 states have (on average 1.71571072319202) internal successors, (688), 417 states have internal predecessors, (688), 93 states have call successors, (93), 23 states have call predecessors, (93), 23 states have return successors, (93), 91 states have call predecessors, (93), 93 states have call successors, (93) Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 05:23:03,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:23:03,006 INFO L93 Difference]: Finished difference Result 1225 states and 2094 transitions. [2023-12-16 05:23:03,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 05:23:03,013 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 89 [2023-12-16 05:23:03,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:23:03,028 INFO L225 Difference]: With dead ends: 1225 [2023-12-16 05:23:03,030 INFO L226 Difference]: Without dead ends: 700 [2023-12-16 05:23:03,046 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-12-16 05:23:03,048 INFO L413 NwaCegarLoop]: 324 mSDtfsCounter, 1327 mSDsluCounter, 759 mSDsCounter, 0 mSdLazyCounter, 2468 mSolverCounterSat, 377 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1374 SdHoareTripleChecker+Valid, 1083 SdHoareTripleChecker+Invalid, 2845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 377 IncrementalHoareTripleChecker+Valid, 2468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-12-16 05:23:03,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1374 Valid, 1083 Invalid, 2845 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [377 Valid, 2468 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-12-16 05:23:03,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2023-12-16 05:23:03,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 518. [2023-12-16 05:23:03,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 401 states have (on average 1.6982543640897756) internal successors, (681), 416 states have internal predecessors, (681), 93 states have call successors, (93), 24 states have call predecessors, (93), 23 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2023-12-16 05:23:03,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 866 transitions. [2023-12-16 05:23:03,187 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 866 transitions. Word has length 89 [2023-12-16 05:23:03,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:23:03,188 INFO L495 AbstractCegarLoop]: Abstraction has 518 states and 866 transitions. [2023-12-16 05:23:03,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 05:23:03,188 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 866 transitions. [2023-12-16 05:23:03,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-16 05:23:03,191 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:23:03,192 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:23:03,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 05:23:03,192 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:23:03,192 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:23:03,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1766358676, now seen corresponding path program 1 times [2023-12-16 05:23:03,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:23:03,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065458935] [2023-12-16 05:23:03,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:23:03,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:23:03,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:03,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:23:03,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:03,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:03,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:03,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:23:03,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:03,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-16 05:23:03,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:03,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:03,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:03,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 05:23:03,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:03,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-16 05:23:03,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:03,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:03,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:03,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:03,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:03,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:23:03,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:03,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-16 05:23:03,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:03,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-16 05:23:03,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:03,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:03,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:03,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-16 05:23:03,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:03,485 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 05:23:03,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:23:03,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065458935] [2023-12-16 05:23:03,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065458935] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:23:03,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:23:03,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 05:23:03,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269129348] [2023-12-16 05:23:03,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:23:03,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 05:23:03,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:23:03,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 05:23:03,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 05:23:03,491 INFO L87 Difference]: Start difference. First operand 518 states and 866 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 05:23:06,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:23:06,664 INFO L93 Difference]: Finished difference Result 1206 states and 2028 transitions. [2023-12-16 05:23:06,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 05:23:06,665 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 90 [2023-12-16 05:23:06,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:23:06,669 INFO L225 Difference]: With dead ends: 1206 [2023-12-16 05:23:06,670 INFO L226 Difference]: Without dead ends: 700 [2023-12-16 05:23:06,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-16 05:23:06,673 INFO L413 NwaCegarLoop]: 306 mSDtfsCounter, 1314 mSDsluCounter, 712 mSDsCounter, 0 mSdLazyCounter, 2454 mSolverCounterSat, 376 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1361 SdHoareTripleChecker+Valid, 1018 SdHoareTripleChecker+Invalid, 2830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 376 IncrementalHoareTripleChecker+Valid, 2454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-16 05:23:06,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1361 Valid, 1018 Invalid, 2830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [376 Valid, 2454 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-16 05:23:06,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2023-12-16 05:23:06,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 518. [2023-12-16 05:23:06,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 401 states have (on average 1.6957605985037407) internal successors, (680), 416 states have internal predecessors, (680), 93 states have call successors, (93), 24 states have call predecessors, (93), 23 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2023-12-16 05:23:06,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 865 transitions. [2023-12-16 05:23:06,763 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 865 transitions. Word has length 90 [2023-12-16 05:23:06,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:23:06,764 INFO L495 AbstractCegarLoop]: Abstraction has 518 states and 865 transitions. [2023-12-16 05:23:06,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 05:23:06,764 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 865 transitions. [2023-12-16 05:23:06,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 05:23:06,771 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:23:06,771 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:23:06,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 05:23:06,771 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:23:06,771 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:23:06,771 INFO L85 PathProgramCache]: Analyzing trace with hash -274067263, now seen corresponding path program 1 times [2023-12-16 05:23:06,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:23:06,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548102733] [2023-12-16 05:23:06,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:23:06,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:23:06,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:06,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:23:06,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:06,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:06,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:06,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 05:23:06,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:06,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-16 05:23:06,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:06,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:06,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:06,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:23:06,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:06,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 05:23:06,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:06,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:06,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:06,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:06,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:06,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:23:06,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:06,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-16 05:23:06,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:06,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-16 05:23:06,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:06,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:06,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:06,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-16 05:23:06,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:06,997 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 05:23:06,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:23:06,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548102733] [2023-12-16 05:23:06,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548102733] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:23:06,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:23:06,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 05:23:06,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278478234] [2023-12-16 05:23:06,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:23:06,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 05:23:06,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:23:06,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 05:23:06,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 05:23:06,999 INFO L87 Difference]: Start difference. First operand 518 states and 865 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 05:23:09,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:23:09,938 INFO L93 Difference]: Finished difference Result 1206 states and 2027 transitions. [2023-12-16 05:23:09,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 05:23:09,938 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 91 [2023-12-16 05:23:09,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:23:09,942 INFO L225 Difference]: With dead ends: 1206 [2023-12-16 05:23:09,942 INFO L226 Difference]: Without dead ends: 700 [2023-12-16 05:23:09,944 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-16 05:23:09,944 INFO L413 NwaCegarLoop]: 326 mSDtfsCounter, 1294 mSDsluCounter, 752 mSDsCounter, 0 mSdLazyCounter, 2469 mSolverCounterSat, 372 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1341 SdHoareTripleChecker+Valid, 1078 SdHoareTripleChecker+Invalid, 2841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 372 IncrementalHoareTripleChecker+Valid, 2469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-16 05:23:09,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1341 Valid, 1078 Invalid, 2841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [372 Valid, 2469 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-16 05:23:09,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2023-12-16 05:23:09,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 518. [2023-12-16 05:23:09,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 401 states have (on average 1.6932668329177056) internal successors, (679), 416 states have internal predecessors, (679), 93 states have call successors, (93), 24 states have call predecessors, (93), 23 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2023-12-16 05:23:10,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 864 transitions. [2023-12-16 05:23:10,004 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 864 transitions. Word has length 91 [2023-12-16 05:23:10,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:23:10,005 INFO L495 AbstractCegarLoop]: Abstraction has 518 states and 864 transitions. [2023-12-16 05:23:10,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 05:23:10,005 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 864 transitions. [2023-12-16 05:23:10,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-16 05:23:10,007 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:23:10,007 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:23:10,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 05:23:10,007 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:23:10,008 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:23:10,008 INFO L85 PathProgramCache]: Analyzing trace with hash -748016840, now seen corresponding path program 1 times [2023-12-16 05:23:10,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:23:10,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857188779] [2023-12-16 05:23:10,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:23:10,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:23:10,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:10,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:23:10,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:10,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:10,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:10,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 05:23:10,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:10,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 05:23:10,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:10,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:10,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:10,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-16 05:23:10,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:10,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-16 05:23:10,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:10,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:10,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:10,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:10,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:10,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:23:10,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:10,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-16 05:23:10,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:10,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 05:23:10,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:10,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:10,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:10,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-16 05:23:10,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:10,228 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 05:23:10,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:23:10,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857188779] [2023-12-16 05:23:10,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857188779] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:23:10,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:23:10,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 05:23:10,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100168239] [2023-12-16 05:23:10,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:23:10,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 05:23:10,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:23:10,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 05:23:10,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 05:23:10,230 INFO L87 Difference]: Start difference. First operand 518 states and 864 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 05:23:13,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:23:13,094 INFO L93 Difference]: Finished difference Result 1206 states and 2026 transitions. [2023-12-16 05:23:13,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 05:23:13,095 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 92 [2023-12-16 05:23:13,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:23:13,105 INFO L225 Difference]: With dead ends: 1206 [2023-12-16 05:23:13,106 INFO L226 Difference]: Without dead ends: 700 [2023-12-16 05:23:13,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-16 05:23:13,119 INFO L413 NwaCegarLoop]: 326 mSDtfsCounter, 1291 mSDsluCounter, 753 mSDsCounter, 0 mSdLazyCounter, 2461 mSolverCounterSat, 373 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1338 SdHoareTripleChecker+Valid, 1079 SdHoareTripleChecker+Invalid, 2834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 373 IncrementalHoareTripleChecker+Valid, 2461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-16 05:23:13,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1338 Valid, 1079 Invalid, 2834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [373 Valid, 2461 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-16 05:23:13,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2023-12-16 05:23:13,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 518. [2023-12-16 05:23:13,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 401 states have (on average 1.6907730673316708) internal successors, (678), 416 states have internal predecessors, (678), 93 states have call successors, (93), 24 states have call predecessors, (93), 23 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2023-12-16 05:23:13,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 863 transitions. [2023-12-16 05:23:13,199 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 863 transitions. Word has length 92 [2023-12-16 05:23:13,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:23:13,199 INFO L495 AbstractCegarLoop]: Abstraction has 518 states and 863 transitions. [2023-12-16 05:23:13,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 05:23:13,199 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 863 transitions. [2023-12-16 05:23:13,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-16 05:23:13,205 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:23:13,205 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:23:13,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-16 05:23:13,205 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:23:13,206 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:23:13,206 INFO L85 PathProgramCache]: Analyzing trace with hash 94160549, now seen corresponding path program 1 times [2023-12-16 05:23:13,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:23:13,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208854728] [2023-12-16 05:23:13,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:23:13,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:23:13,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:13,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:23:13,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:13,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:13,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:13,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-16 05:23:13,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:13,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-16 05:23:13,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:13,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:13,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:13,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 05:23:13,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:13,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-16 05:23:13,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:13,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:13,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:13,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:13,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:13,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:23:13,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:13,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-16 05:23:13,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:13,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-16 05:23:13,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:13,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:13,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:13,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 05:23:13,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:13,477 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 05:23:13,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:23:13,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208854728] [2023-12-16 05:23:13,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208854728] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:23:13,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:23:13,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 05:23:13,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239601254] [2023-12-16 05:23:13,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:23:13,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 05:23:13,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:23:13,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 05:23:13,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 05:23:13,478 INFO L87 Difference]: Start difference. First operand 518 states and 863 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 05:23:16,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:23:16,355 INFO L93 Difference]: Finished difference Result 1206 states and 2025 transitions. [2023-12-16 05:23:16,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 05:23:16,355 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 93 [2023-12-16 05:23:16,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:23:16,358 INFO L225 Difference]: With dead ends: 1206 [2023-12-16 05:23:16,358 INFO L226 Difference]: Without dead ends: 700 [2023-12-16 05:23:16,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-16 05:23:16,361 INFO L413 NwaCegarLoop]: 321 mSDtfsCounter, 1291 mSDsluCounter, 743 mSDsCounter, 0 mSdLazyCounter, 2456 mSolverCounterSat, 374 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1338 SdHoareTripleChecker+Valid, 1064 SdHoareTripleChecker+Invalid, 2830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 374 IncrementalHoareTripleChecker+Valid, 2456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-16 05:23:16,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1338 Valid, 1064 Invalid, 2830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [374 Valid, 2456 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-16 05:23:16,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2023-12-16 05:23:16,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 518. [2023-12-16 05:23:16,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 401 states have (on average 1.688279301745636) internal successors, (677), 416 states have internal predecessors, (677), 93 states have call successors, (93), 24 states have call predecessors, (93), 23 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2023-12-16 05:23:16,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 862 transitions. [2023-12-16 05:23:16,438 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 862 transitions. Word has length 93 [2023-12-16 05:23:16,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:23:16,438 INFO L495 AbstractCegarLoop]: Abstraction has 518 states and 862 transitions. [2023-12-16 05:23:16,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 05:23:16,438 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 862 transitions. [2023-12-16 05:23:16,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-16 05:23:16,440 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:23:16,440 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:23:16,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-16 05:23:16,441 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:23:16,441 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:23:16,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1213399076, now seen corresponding path program 1 times [2023-12-16 05:23:16,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:23:16,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125238368] [2023-12-16 05:23:16,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:23:16,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:23:16,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:16,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:23:16,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:16,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:16,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:16,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:23:16,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:16,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:23:16,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:16,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:16,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:16,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-16 05:23:16,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:16,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-16 05:23:16,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:16,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:16,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:16,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:16,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:16,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:23:16,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:16,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 05:23:16,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:16,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-16 05:23:16,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:16,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:16,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:16,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-16 05:23:16,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:16,713 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 05:23:16,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:23:16,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125238368] [2023-12-16 05:23:16,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125238368] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:23:16,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:23:16,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 05:23:16,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117881117] [2023-12-16 05:23:16,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:23:16,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 05:23:16,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:23:16,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 05:23:16,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 05:23:16,715 INFO L87 Difference]: Start difference. First operand 518 states and 862 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 05:23:20,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:23:20,284 INFO L93 Difference]: Finished difference Result 1229 states and 2067 transitions. [2023-12-16 05:23:20,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 05:23:20,288 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 94 [2023-12-16 05:23:20,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:23:20,290 INFO L225 Difference]: With dead ends: 1229 [2023-12-16 05:23:20,290 INFO L226 Difference]: Without dead ends: 727 [2023-12-16 05:23:20,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2023-12-16 05:23:20,292 INFO L413 NwaCegarLoop]: 304 mSDtfsCounter, 1425 mSDsluCounter, 996 mSDsCounter, 0 mSdLazyCounter, 3154 mSolverCounterSat, 386 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1481 SdHoareTripleChecker+Valid, 1300 SdHoareTripleChecker+Invalid, 3540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 386 IncrementalHoareTripleChecker+Valid, 3154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-12-16 05:23:20,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1481 Valid, 1300 Invalid, 3540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [386 Valid, 3154 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-12-16 05:23:20,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2023-12-16 05:23:20,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 537. [2023-12-16 05:23:20,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 419 states have (on average 1.6825775656324582) internal successors, (705), 434 states have internal predecessors, (705), 93 states have call successors, (93), 25 states have call predecessors, (93), 24 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2023-12-16 05:23:20,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 890 transitions. [2023-12-16 05:23:20,344 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 890 transitions. Word has length 94 [2023-12-16 05:23:20,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:23:20,344 INFO L495 AbstractCegarLoop]: Abstraction has 537 states and 890 transitions. [2023-12-16 05:23:20,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 05:23:20,345 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 890 transitions. [2023-12-16 05:23:20,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-16 05:23:20,346 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:23:20,346 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:23:20,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-16 05:23:20,346 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:23:20,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:23:20,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1016025620, now seen corresponding path program 1 times [2023-12-16 05:23:20,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:23:20,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447968161] [2023-12-16 05:23:20,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:23:20,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:23:20,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:20,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:23:20,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:20,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:20,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:20,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:23:20,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:20,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-16 05:23:20,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:20,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:20,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:20,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-16 05:23:20,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:20,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-16 05:23:20,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:20,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:20,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:20,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:20,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:20,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:23:20,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:20,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-16 05:23:20,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:20,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 05:23:20,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:20,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:20,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:20,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-16 05:23:20,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:20,589 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 05:23:20,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:23:20,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447968161] [2023-12-16 05:23:20,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447968161] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:23:20,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:23:20,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 05:23:20,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810441562] [2023-12-16 05:23:20,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:23:20,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 05:23:20,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:23:20,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 05:23:20,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 05:23:20,590 INFO L87 Difference]: Start difference. First operand 537 states and 890 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 05:23:23,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:23:23,507 INFO L93 Difference]: Finished difference Result 1212 states and 2017 transitions. [2023-12-16 05:23:23,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 05:23:23,507 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 95 [2023-12-16 05:23:23,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:23:23,510 INFO L225 Difference]: With dead ends: 1212 [2023-12-16 05:23:23,510 INFO L226 Difference]: Without dead ends: 727 [2023-12-16 05:23:23,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-12-16 05:23:23,512 INFO L413 NwaCegarLoop]: 306 mSDtfsCounter, 1389 mSDsluCounter, 1002 mSDsCounter, 0 mSdLazyCounter, 3144 mSolverCounterSat, 379 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1445 SdHoareTripleChecker+Valid, 1308 SdHoareTripleChecker+Invalid, 3523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 379 IncrementalHoareTripleChecker+Valid, 3144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-16 05:23:23,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1445 Valid, 1308 Invalid, 3523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [379 Valid, 3144 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-16 05:23:23,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2023-12-16 05:23:23,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 537. [2023-12-16 05:23:23,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 419 states have (on average 1.6706443914081146) internal successors, (700), 434 states have internal predecessors, (700), 93 states have call successors, (93), 25 states have call predecessors, (93), 24 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2023-12-16 05:23:23,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 885 transitions. [2023-12-16 05:23:23,564 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 885 transitions. Word has length 95 [2023-12-16 05:23:23,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:23:23,564 INFO L495 AbstractCegarLoop]: Abstraction has 537 states and 885 transitions. [2023-12-16 05:23:23,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 05:23:23,564 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 885 transitions. [2023-12-16 05:23:23,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-16 05:23:23,566 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:23:23,566 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:23:23,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-16 05:23:23,566 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:23:23,566 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:23:23,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1637144137, now seen corresponding path program 1 times [2023-12-16 05:23:23,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:23:23,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705929285] [2023-12-16 05:23:23,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:23:23,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:23:23,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:23,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:23:23,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:23,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:23,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:23,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:23:23,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:23,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-16 05:23:23,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:23,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:23,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:23,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-16 05:23:23,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:23,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-16 05:23:23,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:23,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:23,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:23,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:23,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:23,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:23:23,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:23,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-16 05:23:23,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:23,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-16 05:23:23,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:23,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:23,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:23,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-16 05:23:23,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:23,808 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 05:23:23,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:23:23,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705929285] [2023-12-16 05:23:23,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705929285] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:23:23,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:23:23,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 05:23:23,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488498454] [2023-12-16 05:23:23,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:23:23,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 05:23:23,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:23:23,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 05:23:23,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 05:23:23,810 INFO L87 Difference]: Start difference. First operand 537 states and 885 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 05:23:26,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:23:26,660 INFO L93 Difference]: Finished difference Result 1212 states and 2012 transitions. [2023-12-16 05:23:26,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 05:23:26,660 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 96 [2023-12-16 05:23:26,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:23:26,663 INFO L225 Difference]: With dead ends: 1212 [2023-12-16 05:23:26,663 INFO L226 Difference]: Without dead ends: 727 [2023-12-16 05:23:26,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-12-16 05:23:26,665 INFO L413 NwaCegarLoop]: 306 mSDtfsCounter, 1378 mSDsluCounter, 1002 mSDsCounter, 0 mSdLazyCounter, 3111 mSolverCounterSat, 380 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1434 SdHoareTripleChecker+Valid, 1308 SdHoareTripleChecker+Invalid, 3491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 380 IncrementalHoareTripleChecker+Valid, 3111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-16 05:23:26,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1434 Valid, 1308 Invalid, 3491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [380 Valid, 3111 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-16 05:23:26,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2023-12-16 05:23:26,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 537. [2023-12-16 05:23:26,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 419 states have (on average 1.6587112171837708) internal successors, (695), 434 states have internal predecessors, (695), 93 states have call successors, (93), 25 states have call predecessors, (93), 24 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2023-12-16 05:23:26,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 880 transitions. [2023-12-16 05:23:26,736 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 880 transitions. Word has length 96 [2023-12-16 05:23:26,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:23:26,737 INFO L495 AbstractCegarLoop]: Abstraction has 537 states and 880 transitions. [2023-12-16 05:23:26,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 05:23:26,737 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 880 transitions. [2023-12-16 05:23:26,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-16 05:23:26,739 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:23:26,739 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:23:26,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-16 05:23:26,740 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:23:26,740 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:23:26,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1031919281, now seen corresponding path program 1 times [2023-12-16 05:23:26,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:23:26,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823651257] [2023-12-16 05:23:26,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:23:26,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:23:26,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:26,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:23:26,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:26,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:26,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:26,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:23:26,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:26,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-16 05:23:26,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:26,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:26,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:26,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 05:23:26,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:26,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 05:23:26,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:27,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:27,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:27,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:27,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:27,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:23:27,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:27,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-16 05:23:27,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:27,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-16 05:23:27,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:27,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:27,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:27,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-16 05:23:27,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:27,014 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 05:23:27,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:23:27,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823651257] [2023-12-16 05:23:27,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823651257] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:23:27,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:23:27,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 05:23:27,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437007949] [2023-12-16 05:23:27,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:23:27,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 05:23:27,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:23:27,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 05:23:27,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 05:23:27,016 INFO L87 Difference]: Start difference. First operand 537 states and 880 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 05:23:29,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:23:29,798 INFO L93 Difference]: Finished difference Result 1212 states and 2007 transitions. [2023-12-16 05:23:29,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 05:23:29,815 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 97 [2023-12-16 05:23:29,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:23:29,818 INFO L225 Difference]: With dead ends: 1212 [2023-12-16 05:23:29,818 INFO L226 Difference]: Without dead ends: 727 [2023-12-16 05:23:29,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-12-16 05:23:29,820 INFO L413 NwaCegarLoop]: 311 mSDtfsCounter, 1361 mSDsluCounter, 1017 mSDsCounter, 0 mSdLazyCounter, 3089 mSolverCounterSat, 381 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1417 SdHoareTripleChecker+Valid, 1328 SdHoareTripleChecker+Invalid, 3470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 381 IncrementalHoareTripleChecker+Valid, 3089 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-16 05:23:29,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1417 Valid, 1328 Invalid, 3470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [381 Valid, 3089 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-16 05:23:29,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2023-12-16 05:23:29,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 537. [2023-12-16 05:23:29,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 419 states have (on average 1.6467780429594272) internal successors, (690), 434 states have internal predecessors, (690), 93 states have call successors, (93), 25 states have call predecessors, (93), 24 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2023-12-16 05:23:29,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 875 transitions. [2023-12-16 05:23:29,875 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 875 transitions. Word has length 97 [2023-12-16 05:23:29,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:23:29,875 INFO L495 AbstractCegarLoop]: Abstraction has 537 states and 875 transitions. [2023-12-16 05:23:29,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 05:23:29,876 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 875 transitions. [2023-12-16 05:23:29,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-16 05:23:29,877 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:23:29,877 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:23:29,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-16 05:23:29,877 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:23:29,878 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:23:29,878 INFO L85 PathProgramCache]: Analyzing trace with hash -493119794, now seen corresponding path program 1 times [2023-12-16 05:23:29,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:23:29,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699109069] [2023-12-16 05:23:29,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:23:29,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:23:29,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:30,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:23:30,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:30,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:30,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:30,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:23:30,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:30,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-16 05:23:30,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:30,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:30,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:30,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 05:23:30,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:30,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 05:23:30,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:30,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:30,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:30,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:30,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:30,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:23:30,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:30,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-16 05:23:30,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:30,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-16 05:23:30,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:30,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:30,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:30,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-16 05:23:30,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:30,106 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 05:23:30,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:23:30,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699109069] [2023-12-16 05:23:30,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699109069] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:23:30,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:23:30,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 05:23:30,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786770558] [2023-12-16 05:23:30,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:23:30,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 05:23:30,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:23:30,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 05:23:30,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 05:23:30,107 INFO L87 Difference]: Start difference. First operand 537 states and 875 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 05:23:33,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:23:33,065 INFO L93 Difference]: Finished difference Result 1232 states and 2034 transitions. [2023-12-16 05:23:33,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 05:23:33,065 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 97 [2023-12-16 05:23:33,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:23:33,068 INFO L225 Difference]: With dead ends: 1232 [2023-12-16 05:23:33,068 INFO L226 Difference]: Without dead ends: 753 [2023-12-16 05:23:33,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2023-12-16 05:23:33,070 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 1345 mSDsluCounter, 721 mSDsCounter, 0 mSdLazyCounter, 2359 mSolverCounterSat, 378 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1392 SdHoareTripleChecker+Valid, 1030 SdHoareTripleChecker+Invalid, 2737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 378 IncrementalHoareTripleChecker+Valid, 2359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-16 05:23:33,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1392 Valid, 1030 Invalid, 2737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [378 Valid, 2359 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-16 05:23:33,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 753 states. [2023-12-16 05:23:33,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 753 to 541. [2023-12-16 05:23:33,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 423 states have (on average 1.6406619385342789) internal successors, (694), 438 states have internal predecessors, (694), 93 states have call successors, (93), 25 states have call predecessors, (93), 24 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2023-12-16 05:23:33,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 879 transitions. [2023-12-16 05:23:33,126 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 879 transitions. Word has length 97 [2023-12-16 05:23:33,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:23:33,126 INFO L495 AbstractCegarLoop]: Abstraction has 541 states and 879 transitions. [2023-12-16 05:23:33,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 05:23:33,126 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 879 transitions. [2023-12-16 05:23:33,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-16 05:23:33,127 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:23:33,128 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:23:33,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-16 05:23:33,128 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:23:33,128 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:23:33,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1799290770, now seen corresponding path program 1 times [2023-12-16 05:23:33,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:23:33,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053797282] [2023-12-16 05:23:33,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:23:33,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:23:33,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:33,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:23:33,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:33,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:33,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:33,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:23:33,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:33,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 05:23:33,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:33,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:33,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:33,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-16 05:23:33,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:33,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-16 05:23:33,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:33,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:33,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:33,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:33,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:33,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:23:33,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:33,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-16 05:23:33,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:33,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 05:23:33,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:33,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:33,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:33,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-16 05:23:33,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:33,380 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 05:23:33,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:23:33,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053797282] [2023-12-16 05:23:33,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053797282] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:23:33,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:23:33,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 05:23:33,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884474928] [2023-12-16 05:23:33,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:23:33,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 05:23:33,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:23:33,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 05:23:33,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 05:23:33,382 INFO L87 Difference]: Start difference. First operand 541 states and 879 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 05:23:36,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:23:36,210 INFO L93 Difference]: Finished difference Result 1222 states and 2011 transitions. [2023-12-16 05:23:36,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 05:23:36,211 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 98 [2023-12-16 05:23:36,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:23:36,213 INFO L225 Difference]: With dead ends: 1222 [2023-12-16 05:23:36,213 INFO L226 Difference]: Without dead ends: 733 [2023-12-16 05:23:36,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-12-16 05:23:36,215 INFO L413 NwaCegarLoop]: 305 mSDtfsCounter, 1356 mSDsluCounter, 999 mSDsCounter, 0 mSdLazyCounter, 3061 mSolverCounterSat, 381 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1412 SdHoareTripleChecker+Valid, 1304 SdHoareTripleChecker+Invalid, 3442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 381 IncrementalHoareTripleChecker+Valid, 3061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-16 05:23:36,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1412 Valid, 1304 Invalid, 3442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [381 Valid, 3061 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-16 05:23:36,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2023-12-16 05:23:36,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 541. [2023-12-16 05:23:36,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 423 states have (on average 1.6288416075650118) internal successors, (689), 438 states have internal predecessors, (689), 93 states have call successors, (93), 25 states have call predecessors, (93), 24 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2023-12-16 05:23:36,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 874 transitions. [2023-12-16 05:23:36,271 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 874 transitions. Word has length 98 [2023-12-16 05:23:36,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:23:36,272 INFO L495 AbstractCegarLoop]: Abstraction has 541 states and 874 transitions. [2023-12-16 05:23:36,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 05:23:36,272 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 874 transitions. [2023-12-16 05:23:36,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-16 05:23:36,273 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:23:36,273 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:23:36,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-16 05:23:36,274 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:23:36,274 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:23:36,274 INFO L85 PathProgramCache]: Analyzing trace with hash 435002933, now seen corresponding path program 1 times [2023-12-16 05:23:36,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:23:36,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883627780] [2023-12-16 05:23:36,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:23:36,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:23:36,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:36,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:23:36,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:36,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:36,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:36,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:23:36,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:36,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 05:23:36,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:36,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:36,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:36,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-16 05:23:36,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:36,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-16 05:23:36,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:36,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:36,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:36,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:36,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:36,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:23:36,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:36,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-16 05:23:36,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:36,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 05:23:36,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:36,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:36,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:36,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-16 05:23:36,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:36,492 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 05:23:36,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:23:36,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883627780] [2023-12-16 05:23:36,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883627780] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:23:36,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:23:36,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 05:23:36,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681396950] [2023-12-16 05:23:36,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:23:36,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 05:23:36,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:23:36,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 05:23:36,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 05:23:36,494 INFO L87 Difference]: Start difference. First operand 541 states and 874 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 05:23:39,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:23:39,347 INFO L93 Difference]: Finished difference Result 1240 states and 2033 transitions. [2023-12-16 05:23:39,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 05:23:39,348 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 98 [2023-12-16 05:23:39,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:23:39,350 INFO L225 Difference]: With dead ends: 1240 [2023-12-16 05:23:39,350 INFO L226 Difference]: Without dead ends: 759 [2023-12-16 05:23:39,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2023-12-16 05:23:39,352 INFO L413 NwaCegarLoop]: 311 mSDtfsCounter, 1349 mSDsluCounter, 724 mSDsCounter, 0 mSdLazyCounter, 2324 mSolverCounterSat, 379 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1396 SdHoareTripleChecker+Valid, 1035 SdHoareTripleChecker+Invalid, 2703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 379 IncrementalHoareTripleChecker+Valid, 2324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-16 05:23:39,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1396 Valid, 1035 Invalid, 2703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [379 Valid, 2324 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-16 05:23:39,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 759 states. [2023-12-16 05:23:39,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 759 to 547. [2023-12-16 05:23:39,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 429 states have (on average 1.6200466200466201) internal successors, (695), 444 states have internal predecessors, (695), 93 states have call successors, (93), 25 states have call predecessors, (93), 24 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2023-12-16 05:23:39,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 880 transitions. [2023-12-16 05:23:39,409 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 880 transitions. Word has length 98 [2023-12-16 05:23:39,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:23:39,409 INFO L495 AbstractCegarLoop]: Abstraction has 547 states and 880 transitions. [2023-12-16 05:23:39,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 05:23:39,409 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 880 transitions. [2023-12-16 05:23:39,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-16 05:23:39,411 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:23:39,411 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:23:39,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-16 05:23:39,411 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:23:39,411 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:23:39,411 INFO L85 PathProgramCache]: Analyzing trace with hash 621597834, now seen corresponding path program 1 times [2023-12-16 05:23:39,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:23:39,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859589939] [2023-12-16 05:23:39,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:23:39,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:23:39,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:39,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:23:39,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:39,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:39,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:39,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:23:39,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:39,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-16 05:23:39,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:39,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:39,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:39,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 05:23:39,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:39,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 05:23:39,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:39,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:39,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:39,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:39,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:39,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:23:39,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:39,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-16 05:23:39,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:39,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-16 05:23:39,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:39,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:39,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:39,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 05:23:39,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:39,656 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 05:23:39,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:23:39,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859589939] [2023-12-16 05:23:39,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859589939] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:23:39,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:23:39,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-16 05:23:39,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185716476] [2023-12-16 05:23:39,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:23:39,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 05:23:39,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:23:39,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 05:23:39,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-16 05:23:39,657 INFO L87 Difference]: Start difference. First operand 547 states and 880 transitions. Second operand has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-16 05:23:43,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:23:43,565 INFO L93 Difference]: Finished difference Result 1250 states and 2041 transitions. [2023-12-16 05:23:43,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 05:23:43,566 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 99 [2023-12-16 05:23:43,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:23:43,568 INFO L225 Difference]: With dead ends: 1250 [2023-12-16 05:23:43,568 INFO L226 Difference]: Without dead ends: 768 [2023-12-16 05:23:43,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2023-12-16 05:23:43,570 INFO L413 NwaCegarLoop]: 308 mSDtfsCounter, 1375 mSDsluCounter, 1896 mSDsCounter, 0 mSdLazyCounter, 5300 mSolverCounterSat, 383 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1431 SdHoareTripleChecker+Valid, 2204 SdHoareTripleChecker+Invalid, 5683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 383 IncrementalHoareTripleChecker+Valid, 5300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-16 05:23:43,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1431 Valid, 2204 Invalid, 5683 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [383 Valid, 5300 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-12-16 05:23:43,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 768 states. [2023-12-16 05:23:43,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 768 to 557. [2023-12-16 05:23:43,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 436 states have (on average 1.6169724770642202) internal successors, (705), 453 states have internal predecessors, (705), 94 states have call successors, (94), 25 states have call predecessors, (94), 26 states have return successors, (95), 91 states have call predecessors, (95), 93 states have call successors, (95) [2023-12-16 05:23:43,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 894 transitions. [2023-12-16 05:23:43,630 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 894 transitions. Word has length 99 [2023-12-16 05:23:43,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:23:43,631 INFO L495 AbstractCegarLoop]: Abstraction has 557 states and 894 transitions. [2023-12-16 05:23:43,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-16 05:23:43,631 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 894 transitions. [2023-12-16 05:23:43,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-16 05:23:43,632 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:23:43,633 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:23:43,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-16 05:23:43,633 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:23:43,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:23:43,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1360093513, now seen corresponding path program 1 times [2023-12-16 05:23:43,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:23:43,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079870575] [2023-12-16 05:23:43,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:23:43,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:23:43,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:43,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:23:43,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:43,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:43,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:43,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:23:43,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:43,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-16 05:23:43,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:43,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:43,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:43,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 05:23:43,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:43,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 05:23:43,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:43,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:43,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:43,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:43,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:43,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:23:43,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:43,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-16 05:23:43,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:43,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-16 05:23:43,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:43,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:43,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:43,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 05:23:43,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:43,830 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 05:23:43,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:23:43,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079870575] [2023-12-16 05:23:43,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079870575] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:23:43,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:23:43,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 05:23:43,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139414008] [2023-12-16 05:23:43,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:23:43,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 05:23:43,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:23:43,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 05:23:43,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 05:23:43,831 INFO L87 Difference]: Start difference. First operand 557 states and 894 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 05:23:46,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:23:46,724 INFO L93 Difference]: Finished difference Result 1270 states and 2070 transitions. [2023-12-16 05:23:46,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 05:23:46,728 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 99 [2023-12-16 05:23:46,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:23:46,732 INFO L225 Difference]: With dead ends: 1270 [2023-12-16 05:23:46,732 INFO L226 Difference]: Without dead ends: 784 [2023-12-16 05:23:46,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2023-12-16 05:23:46,734 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 1344 mSDsluCounter, 719 mSDsCounter, 0 mSdLazyCounter, 2307 mSolverCounterSat, 383 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1391 SdHoareTripleChecker+Valid, 1028 SdHoareTripleChecker+Invalid, 2690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 383 IncrementalHoareTripleChecker+Valid, 2307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-16 05:23:46,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1391 Valid, 1028 Invalid, 2690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [383 Valid, 2307 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-16 05:23:46,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2023-12-16 05:23:46,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 565. [2023-12-16 05:23:46,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 444 states have (on average 1.6036036036036037) internal successors, (712), 461 states have internal predecessors, (712), 94 states have call successors, (94), 25 states have call predecessors, (94), 26 states have return successors, (95), 91 states have call predecessors, (95), 93 states have call successors, (95) [2023-12-16 05:23:46,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 901 transitions. [2023-12-16 05:23:46,799 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 901 transitions. Word has length 99 [2023-12-16 05:23:46,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:23:46,799 INFO L495 AbstractCegarLoop]: Abstraction has 565 states and 901 transitions. [2023-12-16 05:23:46,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 05:23:46,799 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 901 transitions. [2023-12-16 05:23:46,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-16 05:23:46,801 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:23:46,801 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:23:46,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-16 05:23:46,801 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:23:46,801 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:23:46,801 INFO L85 PathProgramCache]: Analyzing trace with hash -2023232663, now seen corresponding path program 1 times [2023-12-16 05:23:46,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:23:46,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426115752] [2023-12-16 05:23:46,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:23:46,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:23:46,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:46,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:23:46,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:46,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:46,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:46,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:23:46,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:46,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-16 05:23:46,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:46,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:46,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:46,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 05:23:46,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:46,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 05:23:46,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:46,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:46,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:46,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:46,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:46,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:23:46,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:46,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-16 05:23:46,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:46,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-16 05:23:46,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:46,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:46,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:46,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 05:23:46,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:46,994 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 05:23:46,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:23:46,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426115752] [2023-12-16 05:23:46,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426115752] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:23:46,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:23:46,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 05:23:46,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785750158] [2023-12-16 05:23:46,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:23:46,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 05:23:46,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:23:46,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 05:23:46,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 05:23:46,995 INFO L87 Difference]: Start difference. First operand 565 states and 901 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 05:23:49,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:23:49,767 INFO L93 Difference]: Finished difference Result 1315 states and 2116 transitions. [2023-12-16 05:23:49,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 05:23:49,767 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 99 [2023-12-16 05:23:49,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:23:49,770 INFO L225 Difference]: With dead ends: 1315 [2023-12-16 05:23:49,770 INFO L226 Difference]: Without dead ends: 744 [2023-12-16 05:23:49,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-12-16 05:23:49,772 INFO L413 NwaCegarLoop]: 315 mSDtfsCounter, 1275 mSDsluCounter, 732 mSDsCounter, 0 mSdLazyCounter, 2365 mSolverCounterSat, 377 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1322 SdHoareTripleChecker+Valid, 1047 SdHoareTripleChecker+Invalid, 2742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 377 IncrementalHoareTripleChecker+Valid, 2365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-16 05:23:49,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1322 Valid, 1047 Invalid, 2742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [377 Valid, 2365 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-16 05:23:49,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2023-12-16 05:23:49,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 547. [2023-12-16 05:23:49,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 429 states have (on average 1.6083916083916083) internal successors, (690), 444 states have internal predecessors, (690), 93 states have call successors, (93), 25 states have call predecessors, (93), 24 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2023-12-16 05:23:49,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 875 transitions. [2023-12-16 05:23:49,834 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 875 transitions. Word has length 99 [2023-12-16 05:23:49,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:23:49,834 INFO L495 AbstractCegarLoop]: Abstraction has 547 states and 875 transitions. [2023-12-16 05:23:49,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 05:23:49,835 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 875 transitions. [2023-12-16 05:23:49,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-16 05:23:49,836 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:23:49,836 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:23:49,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-16 05:23:49,836 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:23:49,837 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:23:49,837 INFO L85 PathProgramCache]: Analyzing trace with hash -2103779760, now seen corresponding path program 1 times [2023-12-16 05:23:49,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:23:49,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236011520] [2023-12-16 05:23:49,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:23:49,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:23:49,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:50,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:23:50,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:50,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:50,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:50,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:23:50,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:50,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-16 05:23:50,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:50,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:50,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:50,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-16 05:23:50,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:50,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-16 05:23:50,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:50,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:50,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:50,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:50,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:50,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:23:50,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:50,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 05:23:50,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:50,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-16 05:23:50,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:50,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:50,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:50,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-16 05:23:50,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:50,064 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 05:23:50,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:23:50,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236011520] [2023-12-16 05:23:50,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236011520] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:23:50,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:23:50,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 05:23:50,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848566175] [2023-12-16 05:23:50,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:23:50,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 05:23:50,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:23:50,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 05:23:50,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 05:23:50,066 INFO L87 Difference]: Start difference. First operand 547 states and 875 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 05:23:53,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:23:53,042 INFO L93 Difference]: Finished difference Result 1258 states and 2037 transitions. [2023-12-16 05:23:53,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 05:23:53,042 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 100 [2023-12-16 05:23:53,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:23:53,045 INFO L225 Difference]: With dead ends: 1258 [2023-12-16 05:23:53,045 INFO L226 Difference]: Without dead ends: 770 [2023-12-16 05:23:53,046 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2023-12-16 05:23:53,047 INFO L413 NwaCegarLoop]: 315 mSDtfsCounter, 1314 mSDsluCounter, 733 mSDsCounter, 0 mSdLazyCounter, 2307 mSolverCounterSat, 380 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1361 SdHoareTripleChecker+Valid, 1048 SdHoareTripleChecker+Invalid, 2687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 380 IncrementalHoareTripleChecker+Valid, 2307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-16 05:23:53,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1361 Valid, 1048 Invalid, 2687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [380 Valid, 2307 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-16 05:23:53,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 770 states. [2023-12-16 05:23:53,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 770 to 557. [2023-12-16 05:23:53,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 439 states have (on average 1.5945330296127562) internal successors, (700), 454 states have internal predecessors, (700), 93 states have call successors, (93), 25 states have call predecessors, (93), 24 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2023-12-16 05:23:53,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 885 transitions. [2023-12-16 05:23:53,108 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 885 transitions. Word has length 100 [2023-12-16 05:23:53,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:23:53,109 INFO L495 AbstractCegarLoop]: Abstraction has 557 states and 885 transitions. [2023-12-16 05:23:53,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 05:23:53,109 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 885 transitions. [2023-12-16 05:23:53,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 05:23:53,110 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:23:53,110 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:23:53,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-16 05:23:53,111 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:23:53,111 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:23:53,111 INFO L85 PathProgramCache]: Analyzing trace with hash -335035468, now seen corresponding path program 1 times [2023-12-16 05:23:53,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:23:53,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078660072] [2023-12-16 05:23:53,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:23:53,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:23:53,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:53,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:23:53,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:53,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:53,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:53,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:23:53,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:53,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 05:23:53,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:53,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:53,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:53,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-16 05:23:53,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:53,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-16 05:23:53,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:53,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:53,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:53,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:53,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:53,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:23:53,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:53,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-16 05:23:53,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:53,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-16 05:23:53,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:53,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:53,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:53,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-16 05:23:53,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:53,354 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-16 05:23:53,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:23:53,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078660072] [2023-12-16 05:23:53,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078660072] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 05:23:53,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [860415336] [2023-12-16 05:23:53,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:23:53,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:23:53,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:23:53,359 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 05:23:53,362 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-16 05:23:53,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:53,601 INFO L262 TraceCheckSpWp]: Trace formula consists of 1191 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 05:23:53,609 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:23:53,634 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-16 05:23:53,634 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 05:23:53,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [860415336] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:23:53,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 05:23:53,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2023-12-16 05:23:53,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770328656] [2023-12-16 05:23:53,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:23:53,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 05:23:53,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:23:53,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 05:23:53,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-16 05:23:53,636 INFO L87 Difference]: Start difference. First operand 557 states and 885 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-16 05:23:53,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:23:53,802 INFO L93 Difference]: Finished difference Result 1526 states and 2500 transitions. [2023-12-16 05:23:53,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 05:23:53,803 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 101 [2023-12-16 05:23:53,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:23:53,806 INFO L225 Difference]: With dead ends: 1526 [2023-12-16 05:23:53,806 INFO L226 Difference]: Without dead ends: 1039 [2023-12-16 05:23:53,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-16 05:23:53,809 INFO L413 NwaCegarLoop]: 888 mSDtfsCounter, 826 mSDsluCounter, 759 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 826 SdHoareTripleChecker+Valid, 1647 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 05:23:53,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [826 Valid, 1647 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 05:23:53,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1039 states. [2023-12-16 05:23:53,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1039 to 1032. [2023-12-16 05:23:53,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1032 states, 808 states have (on average 1.620049504950495) internal successors, (1309), 836 states have internal predecessors, (1309), 178 states have call successors, (178), 46 states have call predecessors, (178), 45 states have return successors, (188), 175 states have call predecessors, (188), 176 states have call successors, (188) [2023-12-16 05:23:53,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1032 states to 1032 states and 1675 transitions. [2023-12-16 05:23:53,947 INFO L78 Accepts]: Start accepts. Automaton has 1032 states and 1675 transitions. Word has length 101 [2023-12-16 05:23:53,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:23:53,948 INFO L495 AbstractCegarLoop]: Abstraction has 1032 states and 1675 transitions. [2023-12-16 05:23:53,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-16 05:23:53,948 INFO L276 IsEmpty]: Start isEmpty. Operand 1032 states and 1675 transitions. [2023-12-16 05:23:53,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 05:23:53,950 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:23:53,950 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:23:53,972 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-16 05:23:54,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-12-16 05:23:54,158 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:23:54,158 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:23:54,158 INFO L85 PathProgramCache]: Analyzing trace with hash -553890186, now seen corresponding path program 1 times [2023-12-16 05:23:54,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:23:54,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594574151] [2023-12-16 05:23:54,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:23:54,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:23:54,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:54,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:23:54,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:54,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:54,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:54,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:23:54,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:54,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 05:23:54,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:54,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:54,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:54,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-16 05:23:54,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:54,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-16 05:23:54,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:54,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:54,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:54,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:54,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:54,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:23:54,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:54,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-16 05:23:54,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:54,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-16 05:23:54,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:54,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:54,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:54,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-16 05:23:54,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:54,366 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-16 05:23:54,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:23:54,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594574151] [2023-12-16 05:23:54,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594574151] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 05:23:54,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1652408356] [2023-12-16 05:23:54,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:23:54,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:23:54,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:23:54,368 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 05:23:54,370 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-16 05:23:54,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:54,557 INFO L262 TraceCheckSpWp]: Trace formula consists of 1192 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 05:23:54,560 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:23:54,658 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-16 05:23:54,658 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 05:23:54,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1652408356] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:23:54,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 05:23:54,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2023-12-16 05:23:54,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662829147] [2023-12-16 05:23:54,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:23:54,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 05:23:54,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:23:54,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 05:23:54,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-12-16 05:23:54,660 INFO L87 Difference]: Start difference. First operand 1032 states and 1675 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-16 05:23:55,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:23:55,124 INFO L93 Difference]: Finished difference Result 2010 states and 3341 transitions. [2023-12-16 05:23:55,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 05:23:55,124 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 101 [2023-12-16 05:23:55,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:23:55,128 INFO L225 Difference]: With dead ends: 2010 [2023-12-16 05:23:55,128 INFO L226 Difference]: Without dead ends: 1048 [2023-12-16 05:23:55,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-12-16 05:23:55,133 INFO L413 NwaCegarLoop]: 786 mSDtfsCounter, 783 mSDsluCounter, 1233 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 801 SdHoareTripleChecker+Valid, 2019 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 05:23:55,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [801 Valid, 2019 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 05:23:55,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1048 states. [2023-12-16 05:23:55,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1048 to 1048. [2023-12-16 05:23:55,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1048 states, 822 states have (on average 1.621654501216545) internal successors, (1333), 850 states have internal predecessors, (1333), 178 states have call successors, (178), 48 states have call predecessors, (178), 47 states have return successors, (190), 175 states have call predecessors, (190), 176 states have call successors, (190) [2023-12-16 05:23:55,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1048 states to 1048 states and 1701 transitions. [2023-12-16 05:23:55,276 INFO L78 Accepts]: Start accepts. Automaton has 1048 states and 1701 transitions. Word has length 101 [2023-12-16 05:23:55,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:23:55,276 INFO L495 AbstractCegarLoop]: Abstraction has 1048 states and 1701 transitions. [2023-12-16 05:23:55,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-16 05:23:55,276 INFO L276 IsEmpty]: Start isEmpty. Operand 1048 states and 1701 transitions. [2023-12-16 05:23:55,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-16 05:23:55,278 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:23:55,278 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:23:55,288 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-16 05:23:55,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-12-16 05:23:55,485 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:23:55,485 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:23:55,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1632537885, now seen corresponding path program 1 times [2023-12-16 05:23:55,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:23:55,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307643826] [2023-12-16 05:23:55,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:23:55,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:23:55,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:55,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:23:55,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:55,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:55,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:55,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:23:55,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:55,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 05:23:55,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:55,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:55,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:55,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-16 05:23:55,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:55,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-16 05:23:55,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:55,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:55,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:55,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:55,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:55,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-16 05:23:55,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:55,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 05:23:55,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:55,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-16 05:23:55,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:55,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:55,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:55,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-16 05:23:55,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:55,674 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-16 05:23:55,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:23:55,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307643826] [2023-12-16 05:23:55,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307643826] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 05:23:55,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1940752674] [2023-12-16 05:23:55,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:23:55,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:23:55,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:23:55,675 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 05:23:55,692 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-16 05:23:55,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:55,867 INFO L262 TraceCheckSpWp]: Trace formula consists of 1195 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 05:23:55,870 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:23:55,940 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-12-16 05:23:55,941 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 05:23:55,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1940752674] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:23:55,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 05:23:55,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2023-12-16 05:23:55,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194453540] [2023-12-16 05:23:55,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:23:55,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 05:23:55,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:23:55,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 05:23:55,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-12-16 05:23:55,942 INFO L87 Difference]: Start difference. First operand 1048 states and 1701 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-16 05:23:56,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:23:56,425 INFO L93 Difference]: Finished difference Result 2042 states and 3387 transitions. [2023-12-16 05:23:56,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 05:23:56,425 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 104 [2023-12-16 05:23:56,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:23:56,429 INFO L225 Difference]: With dead ends: 2042 [2023-12-16 05:23:56,430 INFO L226 Difference]: Without dead ends: 1064 [2023-12-16 05:23:56,434 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-12-16 05:23:56,435 INFO L413 NwaCegarLoop]: 786 mSDtfsCounter, 793 mSDsluCounter, 1233 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 811 SdHoareTripleChecker+Valid, 2019 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 05:23:56,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [811 Valid, 2019 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 05:23:56,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1064 states. [2023-12-16 05:23:56,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1064 to 1064. [2023-12-16 05:23:56,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1064 states, 836 states have (on average 1.6232057416267942) internal successors, (1357), 864 states have internal predecessors, (1357), 178 states have call successors, (178), 50 states have call predecessors, (178), 49 states have return successors, (192), 175 states have call predecessors, (192), 176 states have call successors, (192) [2023-12-16 05:23:56,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1064 states to 1064 states and 1727 transitions. [2023-12-16 05:23:56,579 INFO L78 Accepts]: Start accepts. Automaton has 1064 states and 1727 transitions. Word has length 104 [2023-12-16 05:23:56,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:23:56,579 INFO L495 AbstractCegarLoop]: Abstraction has 1064 states and 1727 transitions. [2023-12-16 05:23:56,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-16 05:23:56,579 INFO L276 IsEmpty]: Start isEmpty. Operand 1064 states and 1727 transitions. [2023-12-16 05:23:56,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-16 05:23:56,580 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:23:56,581 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:23:56,587 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-16 05:23:56,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:23:56,787 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:23:56,787 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:23:56,788 INFO L85 PathProgramCache]: Analyzing trace with hash -2119682414, now seen corresponding path program 1 times [2023-12-16 05:23:56,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:23:56,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406828763] [2023-12-16 05:23:56,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:23:56,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:23:56,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:56,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:23:56,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:56,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:56,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:56,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:23:56,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:56,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 05:23:56,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:56,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:56,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:56,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-16 05:23:56,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:56,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 05:23:56,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:56,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:56,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:56,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:56,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:56,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:23:56,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:56,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-16 05:23:56,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:56,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-16 05:23:56,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:56,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:56,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:56,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-16 05:23:56,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:56,993 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-16 05:23:56,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:23:56,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406828763] [2023-12-16 05:23:56,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406828763] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 05:23:56,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2118956772] [2023-12-16 05:23:56,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:23:56,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:23:56,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:23:56,994 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 05:23:56,999 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-16 05:23:57,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:57,189 INFO L262 TraceCheckSpWp]: Trace formula consists of 1198 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 05:23:57,191 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:23:57,276 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-16 05:23:57,276 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 05:23:57,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2118956772] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:23:57,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 05:23:57,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2023-12-16 05:23:57,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443695948] [2023-12-16 05:23:57,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:23:57,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 05:23:57,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:23:57,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 05:23:57,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-12-16 05:23:57,278 INFO L87 Difference]: Start difference. First operand 1064 states and 1727 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-16 05:23:57,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:23:57,752 INFO L93 Difference]: Finished difference Result 2074 states and 3433 transitions. [2023-12-16 05:23:57,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 05:23:57,753 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 107 [2023-12-16 05:23:57,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:23:57,757 INFO L225 Difference]: With dead ends: 2074 [2023-12-16 05:23:57,757 INFO L226 Difference]: Without dead ends: 1080 [2023-12-16 05:23:57,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-12-16 05:23:57,760 INFO L413 NwaCegarLoop]: 786 mSDtfsCounter, 773 mSDsluCounter, 1233 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 791 SdHoareTripleChecker+Valid, 2019 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 05:23:57,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [791 Valid, 2019 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 05:23:57,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1080 states. [2023-12-16 05:23:57,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1080 to 1080. [2023-12-16 05:23:57,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1080 states, 850 states have (on average 1.6247058823529412) internal successors, (1381), 878 states have internal predecessors, (1381), 178 states have call successors, (178), 52 states have call predecessors, (178), 51 states have return successors, (194), 175 states have call predecessors, (194), 176 states have call successors, (194) [2023-12-16 05:23:57,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1080 states to 1080 states and 1753 transitions. [2023-12-16 05:23:57,890 INFO L78 Accepts]: Start accepts. Automaton has 1080 states and 1753 transitions. Word has length 107 [2023-12-16 05:23:57,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:23:57,890 INFO L495 AbstractCegarLoop]: Abstraction has 1080 states and 1753 transitions. [2023-12-16 05:23:57,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-16 05:23:57,890 INFO L276 IsEmpty]: Start isEmpty. Operand 1080 states and 1753 transitions. Received shutdown request... [2023-12-16 05:23:57,904 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-16 05:23:57,905 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 05:23:57,905 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 05:23:58,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:23:58,102 WARN L619 AbstractCegarLoop]: Verification canceled: while IsEmpty was searching accepting run (input had 1080 states). [2023-12-16 05:23:58,104 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 05:23:58,106 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:23:58,107 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 05:23:58,110 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 05:23:58 BoogieIcfgContainer [2023-12-16 05:23:58,110 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 05:23:58,110 INFO L158 Benchmark]: Toolchain (without parser) took 61664.56ms. Allocated memory was 275.8MB in the beginning and 789.6MB in the end (delta: 513.8MB). Free memory was 221.0MB in the beginning and 542.1MB in the end (delta: -321.1MB). Peak memory consumption was 193.5MB. Max. memory is 8.0GB. [2023-12-16 05:23:58,110 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 195.0MB. Free memory was 146.8MB in the beginning and 146.6MB in the end (delta: 143.4kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 05:23:58,111 INFO L158 Benchmark]: CACSL2BoogieTranslator took 548.46ms. Allocated memory is still 275.8MB. Free memory was 220.6MB in the beginning and 178.0MB in the end (delta: 42.7MB). Peak memory consumption was 43.0MB. Max. memory is 8.0GB. [2023-12-16 05:23:58,111 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.13ms. Allocated memory is still 275.8MB. Free memory was 178.0MB in the beginning and 172.4MB in the end (delta: 5.6MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 05:23:58,111 INFO L158 Benchmark]: Boogie Preprocessor took 93.22ms. Allocated memory is still 275.8MB. Free memory was 172.4MB in the beginning and 235.2MB in the end (delta: -62.8MB). Peak memory consumption was 9.2MB. Max. memory is 8.0GB. [2023-12-16 05:23:58,112 INFO L158 Benchmark]: RCFGBuilder took 1070.27ms. Allocated memory is still 275.8MB. Free memory was 235.2MB in the beginning and 142.4MB in the end (delta: 92.8MB). Peak memory consumption was 93.3MB. Max. memory is 8.0GB. [2023-12-16 05:23:58,113 INFO L158 Benchmark]: TraceAbstraction took 59882.12ms. Allocated memory was 275.8MB in the beginning and 789.6MB in the end (delta: 513.8MB). Free memory was 141.9MB in the beginning and 542.1MB in the end (delta: -400.2MB). Peak memory consumption was 114.1MB. Max. memory is 8.0GB. [2023-12-16 05:23:58,116 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 195.0MB. Free memory was 146.8MB in the beginning and 146.6MB in the end (delta: 143.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 548.46ms. Allocated memory is still 275.8MB. Free memory was 220.6MB in the beginning and 178.0MB in the end (delta: 42.7MB). Peak memory consumption was 43.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 64.13ms. Allocated memory is still 275.8MB. Free memory was 178.0MB in the beginning and 172.4MB in the end (delta: 5.6MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 93.22ms. Allocated memory is still 275.8MB. Free memory was 172.4MB in the beginning and 235.2MB in the end (delta: -62.8MB). Peak memory consumption was 9.2MB. Max. memory is 8.0GB. * RCFGBuilder took 1070.27ms. Allocated memory is still 275.8MB. Free memory was 235.2MB in the beginning and 142.4MB in the end (delta: 92.8MB). Peak memory consumption was 93.3MB. Max. memory is 8.0GB. * TraceAbstraction took 59882.12ms. Allocated memory was 275.8MB in the beginning and 789.6MB in the end (delta: 513.8MB). Free memory was 141.9MB in the beginning and 542.1MB in the end (delta: -400.2MB). Peak memory consumption was 114.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 48]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [48] - GenericResultAtLocation [Line: 57]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [57] - GenericResultAtLocation [Line: 1620]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1620] - GenericResultAtLocation [Line: 1975]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [1975] - GenericResultAtLocation [Line: 2066]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2066] - GenericResultAtLocation [Line: 2432]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2432] - GenericResultAtLocation [Line: 2467]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2467] - GenericResultAtLocation [Line: 2481]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification14_spec.i","") [2481] - GenericResultAtLocation [Line: 2517]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [2517] - GenericResultAtLocation [Line: 2635]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [2635] * 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: 53]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 53). Cancelled while IsEmpty was searching accepting run (input had 1080 states). - StatisticsResult: Ultimate Automizer benchmark data CFG has 24 procedures, 519 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 59.8s, OverallIterations: 20, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 50.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25463 SdHoareTripleChecker+Valid, 40.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 24603 mSDsluCounter, 26966 SdHoareTripleChecker+Invalid, 35.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 18718 mSDsCounter, 6110 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 46274 IncrementalHoareTripleChecker+Invalid, 52384 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6110 mSolverCounterUnsat, 8248 mSDtfsCounter, 46274 mSolverCounterSat, 0.5s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1164 GetRequests, 975 SyntacticMatches, 0 SemanticMatches, 189 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 9.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1080occurred in iteration=20, InterpolantAutomatonStates: 170, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.6s AutomataMinimizationTime, 20 MinimizatonAttempts, 3133 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 5.1s InterpolantComputationTime, 2353 NumberOfCodeBlocks, 2353 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 2329 ConstructedInterpolants, 0 QuantifiedInterpolants, 7307 SizeOfPredicates, 3 NumberOfNonLiveVariables, 4776 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 24 InterpolantComputations, 20 PerfectInterpolantSequences, 692/738 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