/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/product-lines/elevator_spec14_product28.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 22:06:16,883 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 22:06:16,949 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-19 22:06:16,953 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 22:06:16,953 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 22:06:16,976 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 22:06:16,977 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 22:06:16,977 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 22:06:16,977 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 22:06:16,980 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 22:06:16,981 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 22:06:16,981 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 22:06:16,981 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 22:06:16,982 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 22:06:16,982 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 22:06:16,982 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 22:06:16,982 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 22:06:16,983 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 22:06:16,983 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 22:06:16,984 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 22:06:16,984 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 22:06:16,984 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 22:06:16,984 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 22:06:16,984 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 22:06:16,984 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 22:06:16,985 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 22:06:16,985 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 22:06:16,985 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 22:06:16,985 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 22:06:16,985 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 22:06:16,986 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 22:06:16,986 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 22:06:16,986 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 22:06:16,986 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 22:06:16,987 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 22:06:16,987 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 22:06:16,987 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 22:06:16,987 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 22:06:16,987 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 22:06:16,987 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 22:06:16,987 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 22:06:16,987 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 22:06:16,987 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 22:06:16,988 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 22:06:17,195 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 22:06:17,219 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 22:06:17,221 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 22:06:17,222 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 22:06:17,222 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 22:06:17,223 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec14_product28.cil.c [2023-12-19 22:06:18,292 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 22:06:18,571 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 22:06:18,571 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec14_product28.cil.c [2023-12-19 22:06:18,588 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a38d52d3a/cc7ba6bf650241bfaa720d883845496e/FLAG03a46ced3 [2023-12-19 22:06:18,600 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a38d52d3a/cc7ba6bf650241bfaa720d883845496e [2023-12-19 22:06:18,601 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 22:06:18,602 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 22:06:18,605 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 22:06:18,605 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 22:06:18,608 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 22:06:18,608 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 10:06:18" (1/1) ... [2023-12-19 22:06:18,609 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bdabbeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:06:18, skipping insertion in model container [2023-12-19 22:06:18,609 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 10:06:18" (1/1) ... [2023-12-19 22:06:18,660 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 22:06:18,946 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_product28.cil.c[43703,43716] [2023-12-19 22:06:18,994 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 22:06:19,003 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 22:06:19,031 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [48] [2023-12-19 22:06:19,032 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification14_spec.i","") [86] [2023-12-19 22:06:19,032 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [131] [2023-12-19 22:06:19,032 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [252] [2023-12-19 22:06:19,032 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1852] [2023-12-19 22:06:19,032 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1870] [2023-12-19 22:06:19,033 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2220] [2023-12-19 22:06:19,033 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [2229] [2023-12-19 22:06:19,033 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [2320] [2023-12-19 22:06:19,033 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2981] [2023-12-19 22:06:19,080 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_product28.cil.c[43703,43716] [2023-12-19 22:06:19,100 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 22:06:19,117 INFO L206 MainTranslator]: Completed translation [2023-12-19 22:06:19,118 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:06:19 WrapperNode [2023-12-19 22:06:19,118 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 22:06:19,119 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 22:06:19,119 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 22:06:19,119 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 22:06:19,123 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:06:19" (1/1) ... [2023-12-19 22:06:19,144 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:06:19" (1/1) ... [2023-12-19 22:06:19,180 INFO L138 Inliner]: procedures = 94, calls = 341, calls flagged for inlining = 28, calls inlined = 24, statements flattened = 1103 [2023-12-19 22:06:19,180 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 22:06:19,180 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 22:06:19,181 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 22:06:19,181 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 22:06:19,189 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:06:19" (1/1) ... [2023-12-19 22:06:19,189 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:06:19" (1/1) ... [2023-12-19 22:06:19,193 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:06:19" (1/1) ... [2023-12-19 22:06:19,233 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]. [2023-12-19 22:06:19,234 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:06:19" (1/1) ... [2023-12-19 22:06:19,234 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:06:19" (1/1) ... [2023-12-19 22:06:19,250 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:06:19" (1/1) ... [2023-12-19 22:06:19,283 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:06:19" (1/1) ... [2023-12-19 22:06:19,301 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:06:19" (1/1) ... [2023-12-19 22:06:19,305 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:06:19" (1/1) ... [2023-12-19 22:06:19,311 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 22:06:19,312 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 22:06:19,312 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 22:06:19,312 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 22:06:19,313 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:06:19" (1/1) ... [2023-12-19 22:06:19,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 22:06:19,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:06:19,377 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) [2023-12-19 22:06:19,387 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 [2023-12-19 22:06:19,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 22:06:19,401 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-12-19 22:06:19,401 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-12-19 22:06:19,401 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2023-12-19 22:06:19,401 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2023-12-19 22:06:19,401 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-12-19 22:06:19,401 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-12-19 22:06:19,401 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2023-12-19 22:06:19,401 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2023-12-19 22:06:19,401 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-12-19 22:06:19,401 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-12-19 22:06:19,402 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2023-12-19 22:06:19,402 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2023-12-19 22:06:19,402 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-12-19 22:06:19,402 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-12-19 22:06:19,402 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-19 22:06:19,402 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-19 22:06:19,403 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-19 22:06:19,405 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-19 22:06:19,405 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2023-12-19 22:06:19,405 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2023-12-19 22:06:19,405 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-12-19 22:06:19,405 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-12-19 22:06:19,405 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-12-19 22:06:19,405 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-12-19 22:06:19,406 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-12-19 22:06:19,406 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-12-19 22:06:19,406 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2023-12-19 22:06:19,406 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2023-12-19 22:06:19,406 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-12-19 22:06:19,406 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-12-19 22:06:19,406 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2023-12-19 22:06:19,406 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2023-12-19 22:06:19,406 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-12-19 22:06:19,406 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-12-19 22:06:19,406 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-12-19 22:06:19,406 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-12-19 22:06:19,406 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-12-19 22:06:19,407 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-12-19 22:06:19,407 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-12-19 22:06:19,407 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-12-19 22:06:19,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 22:06:19,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-19 22:06:19,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-19 22:06:19,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-19 22:06:19,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-12-19 22:06:19,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-12-19 22:06:19,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-12-19 22:06:19,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-12-19 22:06:19,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-12-19 22:06:19,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-12-19 22:06:19,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-12-19 22:06:19,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-12-19 22:06:19,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-12-19 22:06:19,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-12-19 22:06:19,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-12-19 22:06:19,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2023-12-19 22:06:19,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2023-12-19 22:06:19,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2023-12-19 22:06:19,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2023-12-19 22:06:19,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2023-12-19 22:06:19,409 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-12-19 22:06:19,409 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-12-19 22:06:19,409 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-12-19 22:06:19,410 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-12-19 22:06:19,410 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-12-19 22:06:19,411 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-12-19 22:06:19,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 22:06:19,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 22:06:19,411 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-12-19 22:06:19,411 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-12-19 22:06:19,411 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__executivefloor [2023-12-19 22:06:19,411 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__executivefloor [2023-12-19 22:06:19,575 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 22:06:19,577 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 22:06:20,211 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 22:06:20,254 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 22:06:20,254 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-19 22:06:20,255 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 10:06:20 BoogieIcfgContainer [2023-12-19 22:06:20,255 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 22:06:20,256 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 22:06:20,257 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 22:06:20,259 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 22:06:20,259 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 10:06:18" (1/3) ... [2023-12-19 22:06:20,259 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e4254c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 10:06:20, skipping insertion in model container [2023-12-19 22:06:20,259 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:06:19" (2/3) ... [2023-12-19 22:06:20,259 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e4254c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 10:06:20, skipping insertion in model container [2023-12-19 22:06:20,260 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 10:06:20" (3/3) ... [2023-12-19 22:06:20,260 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec14_product28.cil.c [2023-12-19 22:06:20,271 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 22:06:20,271 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 22:06:20,306 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 22:06:20,310 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;@4cd734d7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 22:06:20,311 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 22:06:20,315 INFO L276 IsEmpty]: Start isEmpty. Operand has 532 states, 408 states have (on average 1.7083333333333333) internal successors, (697), 426 states have internal predecessors, (697), 97 states have call successors, (97), 25 states have call predecessors, (97), 25 states have return successors, (97), 94 states have call predecessors, (97), 97 states have call successors, (97) [2023-12-19 22:06:20,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-19 22:06:20,322 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:06:20,323 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:06:20,323 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:06:20,326 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:06:20,326 INFO L85 PathProgramCache]: Analyzing trace with hash -734151109, now seen corresponding path program 1 times [2023-12-19 22:06:20,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:06:20,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093444687] [2023-12-19 22:06:20,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:06:20,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:06:20,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:20,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:06:20,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:20,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:06:20,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:20,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:06:20,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:20,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-12-19 22:06:20,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:20,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-19 22:06:20,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:20,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:06:20,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:20,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-19 22:06:20,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:20,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-19 22:06:20,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:20,952 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-19 22:06:20,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:06:20,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093444687] [2023-12-19 22:06:20,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093444687] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:06:20,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:06:20,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 22:06:20,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330845750] [2023-12-19 22:06:20,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:06:20,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 22:06:20,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:06:20,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 22:06:20,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 22:06:20,987 INFO L87 Difference]: Start difference. First operand has 532 states, 408 states have (on average 1.7083333333333333) internal successors, (697), 426 states have internal predecessors, (697), 97 states have call successors, (97), 25 states have call predecessors, (97), 25 states have return successors, (97), 94 states have call predecessors, (97), 97 states have call successors, (97) Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 22:06:24,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:06:24,240 INFO L93 Difference]: Finished difference Result 1180 states and 1999 transitions. [2023-12-19 22:06:24,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 22:06:24,242 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 52 [2023-12-19 22:06:24,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:06:24,256 INFO L225 Difference]: With dead ends: 1180 [2023-12-19 22:06:24,256 INFO L226 Difference]: Without dead ends: 646 [2023-12-19 22:06:24,274 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-19 22:06:24,277 INFO L413 NwaCegarLoop]: 473 mSDtfsCounter, 651 mSDsluCounter, 997 mSDsCounter, 0 mSdLazyCounter, 1674 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 728 SdHoareTripleChecker+Valid, 1470 SdHoareTripleChecker+Invalid, 1789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 1674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-19 22:06:24,277 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [728 Valid, 1470 Invalid, 1789 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [115 Valid, 1674 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-19 22:06:24,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2023-12-19 22:06:24,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 531. [2023-12-19 22:06:24,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 408 states have (on average 1.6911764705882353) internal successors, (690), 425 states have internal predecessors, (690), 97 states have call successors, (97), 26 states have call predecessors, (97), 25 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-19 22:06:24,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 883 transitions. [2023-12-19 22:06:24,428 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 883 transitions. Word has length 52 [2023-12-19 22:06:24,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:06:24,428 INFO L495 AbstractCegarLoop]: Abstraction has 531 states and 883 transitions. [2023-12-19 22:06:24,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 22:06:24,429 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 883 transitions. [2023-12-19 22:06:24,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-19 22:06:24,430 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:06:24,431 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:06:24,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-19 22:06:24,431 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:06:24,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:06:24,431 INFO L85 PathProgramCache]: Analyzing trace with hash 473576812, now seen corresponding path program 1 times [2023-12-19 22:06:24,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:06:24,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640682084] [2023-12-19 22:06:24,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:06:24,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:06:24,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:24,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:06:24,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:24,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:06:24,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:24,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 22:06:24,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:24,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 22:06:24,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:24,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-19 22:06:24,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:24,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:06:24,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:24,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-19 22:06:24,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:24,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-19 22:06:24,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:24,652 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-19 22:06:24,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:06:24,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640682084] [2023-12-19 22:06:24,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640682084] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:06:24,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:06:24,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 22:06:24,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920193821] [2023-12-19 22:06:24,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:06:24,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 22:06:24,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:06:24,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 22:06:24,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 22:06:24,655 INFO L87 Difference]: Start difference. First operand 531 states and 883 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 22:06:26,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:06:26,943 INFO L93 Difference]: Finished difference Result 1165 states and 1950 transitions. [2023-12-19 22:06:26,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 22:06:26,944 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 53 [2023-12-19 22:06:26,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:06:26,959 INFO L225 Difference]: With dead ends: 1165 [2023-12-19 22:06:26,959 INFO L226 Difference]: Without dead ends: 646 [2023-12-19 22:06:26,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-19 22:06:26,962 INFO L413 NwaCegarLoop]: 469 mSDtfsCounter, 643 mSDsluCounter, 984 mSDsCounter, 0 mSdLazyCounter, 1665 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 720 SdHoareTripleChecker+Valid, 1453 SdHoareTripleChecker+Invalid, 1778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 1665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-19 22:06:26,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [720 Valid, 1453 Invalid, 1778 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1665 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-19 22:06:26,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2023-12-19 22:06:27,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 531. [2023-12-19 22:06:27,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 408 states have (on average 1.6887254901960784) internal successors, (689), 425 states have internal predecessors, (689), 97 states have call successors, (97), 26 states have call predecessors, (97), 25 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-19 22:06:27,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 882 transitions. [2023-12-19 22:06:27,021 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 882 transitions. Word has length 53 [2023-12-19 22:06:27,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:06:27,021 INFO L495 AbstractCegarLoop]: Abstraction has 531 states and 882 transitions. [2023-12-19 22:06:27,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 22:06:27,021 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 882 transitions. [2023-12-19 22:06:27,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-19 22:06:27,025 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:06:27,025 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:06:27,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-19 22:06:27,026 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:06:27,026 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:06:27,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1179985193, now seen corresponding path program 1 times [2023-12-19 22:06:27,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:06:27,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977943867] [2023-12-19 22:06:27,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:06:27,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:06:27,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:27,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:06:27,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:27,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:06:27,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:27,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 22:06:27,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:27,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-19 22:06:27,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:27,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 22:06:27,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:27,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:06:27,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:27,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-19 22:06:27,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:27,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-19 22:06:27,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:27,227 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-19 22:06:27,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:06:27,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977943867] [2023-12-19 22:06:27,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977943867] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:06:27,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:06:27,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 22:06:27,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987206978] [2023-12-19 22:06:27,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:06:27,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 22:06:27,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:06:27,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 22:06:27,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 22:06:27,229 INFO L87 Difference]: Start difference. First operand 531 states and 882 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 22:06:29,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:06:29,387 INFO L93 Difference]: Finished difference Result 1165 states and 1949 transitions. [2023-12-19 22:06:29,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 22:06:29,388 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 54 [2023-12-19 22:06:29,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:06:29,393 INFO L225 Difference]: With dead ends: 1165 [2023-12-19 22:06:29,393 INFO L226 Difference]: Without dead ends: 646 [2023-12-19 22:06:29,396 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-19 22:06:29,398 INFO L413 NwaCegarLoop]: 513 mSDtfsCounter, 640 mSDsluCounter, 1060 mSDsCounter, 0 mSdLazyCounter, 1684 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 717 SdHoareTripleChecker+Valid, 1573 SdHoareTripleChecker+Invalid, 1790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 1684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-19 22:06:29,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [717 Valid, 1573 Invalid, 1790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 1684 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-19 22:06:29,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2023-12-19 22:06:29,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 531. [2023-12-19 22:06:29,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 408 states have (on average 1.6862745098039216) internal successors, (688), 425 states have internal predecessors, (688), 97 states have call successors, (97), 26 states have call predecessors, (97), 25 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-19 22:06:29,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 881 transitions. [2023-12-19 22:06:29,490 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 881 transitions. Word has length 54 [2023-12-19 22:06:29,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:06:29,490 INFO L495 AbstractCegarLoop]: Abstraction has 531 states and 881 transitions. [2023-12-19 22:06:29,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 22:06:29,494 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 881 transitions. [2023-12-19 22:06:29,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-19 22:06:29,498 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:06:29,498 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:06:29,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-19 22:06:29,499 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:06:29,499 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:06:29,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1339221688, now seen corresponding path program 1 times [2023-12-19 22:06:29,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:06:29,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115426013] [2023-12-19 22:06:29,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:06:29,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:06:29,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:29,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:06:29,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:29,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:06:29,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:29,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 22:06:29,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:29,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 22:06:29,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:29,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-19 22:06:29,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:29,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:06:29,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:29,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 22:06:29,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:29,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-19 22:06:29,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:29,731 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-19 22:06:29,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:06:29,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115426013] [2023-12-19 22:06:29,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115426013] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:06:29,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:06:29,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 22:06:29,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869398147] [2023-12-19 22:06:29,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:06:29,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 22:06:29,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:06:29,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 22:06:29,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 22:06:29,732 INFO L87 Difference]: Start difference. First operand 531 states and 881 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 22:06:31,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:06:31,666 INFO L93 Difference]: Finished difference Result 1165 states and 1948 transitions. [2023-12-19 22:06:31,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 22:06:31,667 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 55 [2023-12-19 22:06:31,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:06:31,670 INFO L225 Difference]: With dead ends: 1165 [2023-12-19 22:06:31,670 INFO L226 Difference]: Without dead ends: 646 [2023-12-19 22:06:31,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-19 22:06:31,672 INFO L413 NwaCegarLoop]: 513 mSDtfsCounter, 637 mSDsluCounter, 1061 mSDsCounter, 0 mSdLazyCounter, 1682 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 714 SdHoareTripleChecker+Valid, 1574 SdHoareTripleChecker+Invalid, 1788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 1682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-19 22:06:31,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [714 Valid, 1574 Invalid, 1788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 1682 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-19 22:06:31,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2023-12-19 22:06:31,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 531. [2023-12-19 22:06:31,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 408 states have (on average 1.6838235294117647) internal successors, (687), 425 states have internal predecessors, (687), 97 states have call successors, (97), 26 states have call predecessors, (97), 25 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-19 22:06:31,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 880 transitions. [2023-12-19 22:06:31,714 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 880 transitions. Word has length 55 [2023-12-19 22:06:31,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:06:31,715 INFO L495 AbstractCegarLoop]: Abstraction has 531 states and 880 transitions. [2023-12-19 22:06:31,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 22:06:31,715 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 880 transitions. [2023-12-19 22:06:31,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-19 22:06:31,716 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:06:31,716 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:06:31,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-19 22:06:31,716 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:06:31,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:06:31,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1875959667, now seen corresponding path program 1 times [2023-12-19 22:06:31,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:06:31,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274403283] [2023-12-19 22:06:31,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:06:31,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:06:31,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:31,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:06:31,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:31,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:06:31,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:31,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-19 22:06:31,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:31,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-19 22:06:31,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:31,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-19 22:06:31,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:31,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:06:31,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:31,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 22:06:31,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:31,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 22:06:31,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:31,903 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-19 22:06:31,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:06:31,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274403283] [2023-12-19 22:06:31,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274403283] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:06:31,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:06:31,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 22:06:31,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831915640] [2023-12-19 22:06:31,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:06:31,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 22:06:31,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:06:31,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 22:06:31,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 22:06:31,906 INFO L87 Difference]: Start difference. First operand 531 states and 880 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 22:06:34,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:06:34,010 INFO L93 Difference]: Finished difference Result 1165 states and 1947 transitions. [2023-12-19 22:06:34,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 22:06:34,010 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 56 [2023-12-19 22:06:34,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:06:34,016 INFO L225 Difference]: With dead ends: 1165 [2023-12-19 22:06:34,016 INFO L226 Difference]: Without dead ends: 646 [2023-12-19 22:06:34,018 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-19 22:06:34,019 INFO L413 NwaCegarLoop]: 514 mSDtfsCounter, 634 mSDsluCounter, 1063 mSDsCounter, 0 mSdLazyCounter, 1680 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 711 SdHoareTripleChecker+Valid, 1577 SdHoareTripleChecker+Invalid, 1786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 1680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-19 22:06:34,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [711 Valid, 1577 Invalid, 1786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 1680 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-19 22:06:34,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2023-12-19 22:06:34,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 531. [2023-12-19 22:06:34,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 408 states have (on average 1.6813725490196079) internal successors, (686), 425 states have internal predecessors, (686), 97 states have call successors, (97), 26 states have call predecessors, (97), 25 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-19 22:06:34,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 879 transitions. [2023-12-19 22:06:34,055 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 879 transitions. Word has length 56 [2023-12-19 22:06:34,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:06:34,055 INFO L495 AbstractCegarLoop]: Abstraction has 531 states and 879 transitions. [2023-12-19 22:06:34,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 22:06:34,056 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 879 transitions. [2023-12-19 22:06:34,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-19 22:06:34,056 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:06:34,056 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:06:34,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-19 22:06:34,057 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:06:34,058 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:06:34,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1971055324, now seen corresponding path program 1 times [2023-12-19 22:06:34,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:06:34,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917453334] [2023-12-19 22:06:34,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:06:34,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:06:34,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:34,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:06:34,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:34,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:06:34,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:34,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:06:34,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:34,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-19 22:06:34,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:34,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 22:06:34,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:34,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:06:34,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:34,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-19 22:06:34,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:34,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-19 22:06:34,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:34,348 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-19 22:06:34,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:06:34,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917453334] [2023-12-19 22:06:34,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917453334] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:06:34,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:06:34,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 22:06:34,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187183313] [2023-12-19 22:06:34,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:06:34,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 22:06:34,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:06:34,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 22:06:34,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-19 22:06:34,349 INFO L87 Difference]: Start difference. First operand 531 states and 879 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 22:06:37,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:06:37,080 INFO L93 Difference]: Finished difference Result 1188 states and 1989 transitions. [2023-12-19 22:06:37,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 22:06:37,081 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 57 [2023-12-19 22:06:37,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:06:37,085 INFO L225 Difference]: With dead ends: 1188 [2023-12-19 22:06:37,085 INFO L226 Difference]: Without dead ends: 673 [2023-12-19 22:06:37,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-19 22:06:37,088 INFO L413 NwaCegarLoop]: 470 mSDtfsCounter, 743 mSDsluCounter, 1335 mSDsCounter, 0 mSdLazyCounter, 2409 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 829 SdHoareTripleChecker+Valid, 1805 SdHoareTripleChecker+Invalid, 2524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 2409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-19 22:06:37,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [829 Valid, 1805 Invalid, 2524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 2409 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-19 22:06:37,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2023-12-19 22:06:37,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 550. [2023-12-19 22:06:37,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 426 states have (on average 1.676056338028169) internal successors, (714), 443 states have internal predecessors, (714), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-19 22:06:37,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 907 transitions. [2023-12-19 22:06:37,172 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 907 transitions. Word has length 57 [2023-12-19 22:06:37,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:06:37,172 INFO L495 AbstractCegarLoop]: Abstraction has 550 states and 907 transitions. [2023-12-19 22:06:37,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 22:06:37,172 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 907 transitions. [2023-12-19 22:06:37,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-19 22:06:37,174 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:06:37,174 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:06:37,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-19 22:06:37,174 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:06:37,174 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:06:37,174 INFO L85 PathProgramCache]: Analyzing trace with hash 2058702580, now seen corresponding path program 1 times [2023-12-19 22:06:37,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:06:37,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732572676] [2023-12-19 22:06:37,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:06:37,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:06:37,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:37,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:06:37,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:37,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:06:37,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:37,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:06:37,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:37,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-19 22:06:37,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:37,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-19 22:06:37,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:37,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:06:37,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:37,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-19 22:06:37,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:37,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-19 22:06:37,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:37,441 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-19 22:06:37,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:06:37,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732572676] [2023-12-19 22:06:37,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732572676] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:06:37,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:06:37,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 22:06:37,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715450543] [2023-12-19 22:06:37,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:06:37,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 22:06:37,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:06:37,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 22:06:37,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-19 22:06:37,443 INFO L87 Difference]: Start difference. First operand 550 states and 907 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 22:06:39,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:06:39,778 INFO L93 Difference]: Finished difference Result 1171 states and 1939 transitions. [2023-12-19 22:06:39,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 22:06:39,778 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 58 [2023-12-19 22:06:39,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:06:39,799 INFO L225 Difference]: With dead ends: 1171 [2023-12-19 22:06:39,799 INFO L226 Difference]: Without dead ends: 673 [2023-12-19 22:06:39,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-19 22:06:39,817 INFO L413 NwaCegarLoop]: 459 mSDtfsCounter, 719 mSDsluCounter, 1327 mSDsCounter, 0 mSdLazyCounter, 2394 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 805 SdHoareTripleChecker+Valid, 1786 SdHoareTripleChecker+Invalid, 2503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 2394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-19 22:06:39,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [805 Valid, 1786 Invalid, 2503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 2394 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-19 22:06:39,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2023-12-19 22:06:39,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 550. [2023-12-19 22:06:39,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 426 states have (on average 1.664319248826291) internal successors, (709), 443 states have internal predecessors, (709), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-19 22:06:39,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 902 transitions. [2023-12-19 22:06:39,894 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 902 transitions. Word has length 58 [2023-12-19 22:06:39,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:06:39,894 INFO L495 AbstractCegarLoop]: Abstraction has 550 states and 902 transitions. [2023-12-19 22:06:39,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 22:06:39,894 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 902 transitions. [2023-12-19 22:06:39,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-19 22:06:39,895 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:06:39,895 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:06:39,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-19 22:06:39,895 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:06:39,895 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:06:39,895 INFO L85 PathProgramCache]: Analyzing trace with hash 2108695401, now seen corresponding path program 1 times [2023-12-19 22:06:39,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:06:39,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293095428] [2023-12-19 22:06:39,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:06:39,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:06:39,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:40,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:06:40,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:40,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:06:40,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:40,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:06:40,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:40,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-19 22:06:40,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:40,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 22:06:40,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:40,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:06:40,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:40,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-19 22:06:40,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:40,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-19 22:06:40,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:40,142 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-19 22:06:40,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:06:40,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293095428] [2023-12-19 22:06:40,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293095428] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:06:40,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:06:40,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 22:06:40,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331480387] [2023-12-19 22:06:40,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:06:40,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 22:06:40,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:06:40,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 22:06:40,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-19 22:06:40,144 INFO L87 Difference]: Start difference. First operand 550 states and 902 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 22:06:42,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:06:42,386 INFO L93 Difference]: Finished difference Result 1171 states and 1934 transitions. [2023-12-19 22:06:42,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 22:06:42,387 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 59 [2023-12-19 22:06:42,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:06:42,391 INFO L225 Difference]: With dead ends: 1171 [2023-12-19 22:06:42,391 INFO L226 Difference]: Without dead ends: 673 [2023-12-19 22:06:42,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-19 22:06:42,396 INFO L413 NwaCegarLoop]: 460 mSDtfsCounter, 713 mSDsluCounter, 1330 mSDsCounter, 0 mSdLazyCounter, 2374 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 799 SdHoareTripleChecker+Valid, 1790 SdHoareTripleChecker+Invalid, 2483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 2374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-19 22:06:42,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [799 Valid, 1790 Invalid, 2483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 2374 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-19 22:06:42,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2023-12-19 22:06:42,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 550. [2023-12-19 22:06:42,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 426 states have (on average 1.6525821596244132) internal successors, (704), 443 states have internal predecessors, (704), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-19 22:06:42,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 897 transitions. [2023-12-19 22:06:42,433 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 897 transitions. Word has length 59 [2023-12-19 22:06:42,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:06:42,433 INFO L495 AbstractCegarLoop]: Abstraction has 550 states and 897 transitions. [2023-12-19 22:06:42,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 22:06:42,433 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 897 transitions. [2023-12-19 22:06:42,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-19 22:06:42,434 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:06:42,434 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:06:42,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-19 22:06:42,434 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:06:42,434 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:06:42,434 INFO L85 PathProgramCache]: Analyzing trace with hash -954945063, now seen corresponding path program 1 times [2023-12-19 22:06:42,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:06:42,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386110658] [2023-12-19 22:06:42,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:06:42,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:06:42,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:42,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:06:42,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:42,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:06:42,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:42,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:06:42,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:42,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-19 22:06:42,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:42,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 22:06:42,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:42,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:06:42,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:42,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-19 22:06:42,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:42,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 22:06:42,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:42,666 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-19 22:06:42,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:06:42,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386110658] [2023-12-19 22:06:42,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386110658] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:06:42,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:06:42,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 22:06:42,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706502784] [2023-12-19 22:06:42,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:06:42,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 22:06:42,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:06:42,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 22:06:42,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-19 22:06:42,668 INFO L87 Difference]: Start difference. First operand 550 states and 897 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 22:06:44,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:06:44,793 INFO L93 Difference]: Finished difference Result 1171 states and 1929 transitions. [2023-12-19 22:06:44,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 22:06:44,794 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 60 [2023-12-19 22:06:44,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:06:44,798 INFO L225 Difference]: With dead ends: 1171 [2023-12-19 22:06:44,798 INFO L226 Difference]: Without dead ends: 673 [2023-12-19 22:06:44,800 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-19 22:06:44,802 INFO L413 NwaCegarLoop]: 460 mSDtfsCounter, 707 mSDsluCounter, 1330 mSDsCounter, 0 mSdLazyCounter, 2354 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 793 SdHoareTripleChecker+Valid, 1790 SdHoareTripleChecker+Invalid, 2463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 2354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-19 22:06:44,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [793 Valid, 1790 Invalid, 2463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 2354 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-19 22:06:44,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2023-12-19 22:06:44,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 550. [2023-12-19 22:06:44,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 426 states have (on average 1.6408450704225352) internal successors, (699), 443 states have internal predecessors, (699), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-19 22:06:44,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 892 transitions. [2023-12-19 22:06:44,841 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 892 transitions. Word has length 60 [2023-12-19 22:06:44,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:06:44,841 INFO L495 AbstractCegarLoop]: Abstraction has 550 states and 892 transitions. [2023-12-19 22:06:44,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 22:06:44,842 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 892 transitions. [2023-12-19 22:06:44,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-19 22:06:44,843 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:06:44,844 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:06:44,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-19 22:06:44,844 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:06:44,844 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:06:44,844 INFO L85 PathProgramCache]: Analyzing trace with hash 362239226, now seen corresponding path program 1 times [2023-12-19 22:06:44,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:06:44,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197292483] [2023-12-19 22:06:44,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:06:44,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:06:44,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:45,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:06:45,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:45,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:06:45,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:45,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:06:45,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:45,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-19 22:06:45,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:45,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 22:06:45,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:45,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:06:45,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:45,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-19 22:06:45,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:45,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 22:06:45,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:45,095 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-19 22:06:45,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:06:45,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197292483] [2023-12-19 22:06:45,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197292483] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:06:45,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:06:45,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 22:06:45,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21215590] [2023-12-19 22:06:45,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:06:45,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 22:06:45,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:06:45,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 22:06:45,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 22:06:45,097 INFO L87 Difference]: Start difference. First operand 550 states and 892 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 22:06:47,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:06:47,562 INFO L93 Difference]: Finished difference Result 1191 states and 1956 transitions. [2023-12-19 22:06:47,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 22:06:47,563 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 60 [2023-12-19 22:06:47,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:06:47,566 INFO L225 Difference]: With dead ends: 1191 [2023-12-19 22:06:47,566 INFO L226 Difference]: Without dead ends: 699 [2023-12-19 22:06:47,568 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-19 22:06:47,568 INFO L413 NwaCegarLoop]: 470 mSDtfsCounter, 693 mSDsluCounter, 931 mSDsCounter, 0 mSdLazyCounter, 1759 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 770 SdHoareTripleChecker+Valid, 1401 SdHoareTripleChecker+Invalid, 1866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 1759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-19 22:06:47,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [770 Valid, 1401 Invalid, 1866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 1759 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-19 22:06:47,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2023-12-19 22:06:47,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 554. [2023-12-19 22:06:47,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 430 states have (on average 1.6348837209302325) internal successors, (703), 447 states have internal predecessors, (703), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-19 22:06:47,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 896 transitions. [2023-12-19 22:06:47,606 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 896 transitions. Word has length 60 [2023-12-19 22:06:47,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:06:47,606 INFO L495 AbstractCegarLoop]: Abstraction has 554 states and 896 transitions. [2023-12-19 22:06:47,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 22:06:47,606 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 896 transitions. [2023-12-19 22:06:47,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-19 22:06:47,607 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:06:47,607 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:06:47,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-19 22:06:47,607 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:06:47,607 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:06:47,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1756969554, now seen corresponding path program 1 times [2023-12-19 22:06:47,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:06:47,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196299442] [2023-12-19 22:06:47,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:06:47,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:06:47,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:47,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:06:47,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:47,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:06:47,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:47,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:06:47,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:47,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 22:06:47,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:47,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-19 22:06:47,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:47,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:06:47,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:47,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 22:06:47,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:47,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-19 22:06:47,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:47,839 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-19 22:06:47,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:06:47,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196299442] [2023-12-19 22:06:47,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196299442] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:06:47,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:06:47,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 22:06:47,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559428596] [2023-12-19 22:06:47,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:06:47,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 22:06:47,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:06:47,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 22:06:47,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-19 22:06:47,841 INFO L87 Difference]: Start difference. First operand 554 states and 896 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 22:06:50,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:06:50,201 INFO L93 Difference]: Finished difference Result 1181 states and 1933 transitions. [2023-12-19 22:06:50,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 22:06:50,202 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 61 [2023-12-19 22:06:50,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:06:50,205 INFO L225 Difference]: With dead ends: 1181 [2023-12-19 22:06:50,205 INFO L226 Difference]: Without dead ends: 679 [2023-12-19 22:06:50,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-19 22:06:50,207 INFO L413 NwaCegarLoop]: 460 mSDtfsCounter, 701 mSDsluCounter, 1330 mSDsCounter, 0 mSdLazyCounter, 2334 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 787 SdHoareTripleChecker+Valid, 1790 SdHoareTripleChecker+Invalid, 2443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 2334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-19 22:06:50,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [787 Valid, 1790 Invalid, 2443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 2334 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-19 22:06:50,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2023-12-19 22:06:50,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 554. [2023-12-19 22:06:50,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 430 states have (on average 1.6232558139534883) internal successors, (698), 447 states have internal predecessors, (698), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-19 22:06:50,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 891 transitions. [2023-12-19 22:06:50,242 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 891 transitions. Word has length 61 [2023-12-19 22:06:50,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:06:50,242 INFO L495 AbstractCegarLoop]: Abstraction has 554 states and 891 transitions. [2023-12-19 22:06:50,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 22:06:50,242 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 891 transitions. [2023-12-19 22:06:50,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-19 22:06:50,243 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:06:50,243 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:06:50,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-19 22:06:50,243 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:06:50,243 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:06:50,243 INFO L85 PathProgramCache]: Analyzing trace with hash 811041067, now seen corresponding path program 1 times [2023-12-19 22:06:50,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:06:50,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595429981] [2023-12-19 22:06:50,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:06:50,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:06:50,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:50,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:06:50,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:50,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:06:50,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:50,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:06:50,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:50,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 22:06:50,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:50,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-19 22:06:50,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:50,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:06:50,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:50,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 22:06:50,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:50,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-19 22:06:50,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:50,435 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-19 22:06:50,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:06:50,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595429981] [2023-12-19 22:06:50,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595429981] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:06:50,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:06:50,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 22:06:50,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533267473] [2023-12-19 22:06:50,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:06:50,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 22:06:50,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:06:50,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 22:06:50,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 22:06:50,436 INFO L87 Difference]: Start difference. First operand 554 states and 891 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 22:06:52,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:06:52,714 INFO L93 Difference]: Finished difference Result 1199 states and 1955 transitions. [2023-12-19 22:06:52,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 22:06:52,715 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 61 [2023-12-19 22:06:52,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:06:52,718 INFO L225 Difference]: With dead ends: 1199 [2023-12-19 22:06:52,718 INFO L226 Difference]: Without dead ends: 705 [2023-12-19 22:06:52,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-19 22:06:52,720 INFO L413 NwaCegarLoop]: 463 mSDtfsCounter, 694 mSDsluCounter, 922 mSDsCounter, 0 mSdLazyCounter, 1726 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 771 SdHoareTripleChecker+Valid, 1385 SdHoareTripleChecker+Invalid, 1834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 1726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-19 22:06:52,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [771 Valid, 1385 Invalid, 1834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 1726 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-19 22:06:52,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705 states. [2023-12-19 22:06:52,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705 to 560. [2023-12-19 22:06:52,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 436 states have (on average 1.614678899082569) internal successors, (704), 453 states have internal predecessors, (704), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-19 22:06:52,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 897 transitions. [2023-12-19 22:06:52,758 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 897 transitions. Word has length 61 [2023-12-19 22:06:52,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:06:52,758 INFO L495 AbstractCegarLoop]: Abstraction has 560 states and 897 transitions. [2023-12-19 22:06:52,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 22:06:52,758 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 897 transitions. [2023-12-19 22:06:52,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-19 22:06:52,759 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:06:52,759 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:06:52,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-19 22:06:52,759 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:06:52,759 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:06:52,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1168375618, now seen corresponding path program 1 times [2023-12-19 22:06:52,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:06:52,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680818336] [2023-12-19 22:06:52,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:06:52,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:06:52,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:52,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:06:52,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:52,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:06:52,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:52,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:06:53,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:53,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-19 22:06:53,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:53,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 22:06:53,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:53,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:06:53,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:53,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-19 22:06:53,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:53,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 22:06:53,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:53,034 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-19 22:06:53,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:06:53,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680818336] [2023-12-19 22:06:53,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680818336] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:06:53,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:06:53,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-19 22:06:53,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248945140] [2023-12-19 22:06:53,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:06:53,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 22:06:53,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:06:53,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 22:06:53,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-19 22:06:53,035 INFO L87 Difference]: Start difference. First operand 560 states and 897 transitions. Second operand has 9 states, 8 states have (on average 5.5) internal successors, (44), 7 states have internal predecessors, (44), 3 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-19 22:06:56,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:06:56,290 INFO L93 Difference]: Finished difference Result 1209 states and 1963 transitions. [2023-12-19 22:06:56,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-19 22:06:56,290 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 7 states have internal predecessors, (44), 3 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 62 [2023-12-19 22:06:56,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:06:56,293 INFO L225 Difference]: With dead ends: 1209 [2023-12-19 22:06:56,293 INFO L226 Difference]: Without dead ends: 714 [2023-12-19 22:06:56,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2023-12-19 22:06:56,295 INFO L413 NwaCegarLoop]: 486 mSDtfsCounter, 715 mSDsluCounter, 2752 mSDsCounter, 0 mSdLazyCounter, 3880 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 802 SdHoareTripleChecker+Valid, 3238 SdHoareTripleChecker+Invalid, 3988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 3880 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-19 22:06:56,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [802 Valid, 3238 Invalid, 3988 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 3880 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-19 22:06:56,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2023-12-19 22:06:56,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 570. [2023-12-19 22:06:56,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 443 states have (on average 1.6117381489841986) internal successors, (714), 462 states have internal predecessors, (714), 98 states have call successors, (98), 27 states have call predecessors, (98), 28 states have return successors, (99), 94 states have call predecessors, (99), 97 states have call successors, (99) [2023-12-19 22:06:56,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 911 transitions. [2023-12-19 22:06:56,332 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 911 transitions. Word has length 62 [2023-12-19 22:06:56,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:06:56,333 INFO L495 AbstractCegarLoop]: Abstraction has 570 states and 911 transitions. [2023-12-19 22:06:56,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 7 states have internal predecessors, (44), 3 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-19 22:06:56,333 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 911 transitions. [2023-12-19 22:06:56,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-19 22:06:56,333 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:06:56,333 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:06:56,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-19 22:06:56,334 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:06:56,334 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:06:56,334 INFO L85 PathProgramCache]: Analyzing trace with hash -807142241, now seen corresponding path program 1 times [2023-12-19 22:06:56,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:06:56,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584338574] [2023-12-19 22:06:56,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:06:56,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:06:56,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:56,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:06:56,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:56,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:06:56,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:56,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:06:56,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:56,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-19 22:06:56,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:56,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 22:06:56,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:56,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:06:56,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:56,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-19 22:06:56,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:56,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 22:06:56,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:56,541 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-19 22:06:56,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:06:56,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584338574] [2023-12-19 22:06:56,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584338574] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:06:56,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:06:56,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 22:06:56,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441223469] [2023-12-19 22:06:56,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:06:56,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 22:06:56,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:06:56,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 22:06:56,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 22:06:56,542 INFO L87 Difference]: Start difference. First operand 570 states and 911 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 22:06:58,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:06:58,889 INFO L93 Difference]: Finished difference Result 1229 states and 1992 transitions. [2023-12-19 22:06:58,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 22:06:58,889 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 62 [2023-12-19 22:06:58,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:06:58,892 INFO L225 Difference]: With dead ends: 1229 [2023-12-19 22:06:58,893 INFO L226 Difference]: Without dead ends: 730 [2023-12-19 22:06:58,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-19 22:06:58,894 INFO L413 NwaCegarLoop]: 466 mSDtfsCounter, 690 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 1721 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 767 SdHoareTripleChecker+Valid, 1395 SdHoareTripleChecker+Invalid, 1830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 1721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-19 22:06:58,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [767 Valid, 1395 Invalid, 1830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 1721 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-19 22:06:58,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2023-12-19 22:06:58,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 578. [2023-12-19 22:06:58,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 578 states, 451 states have (on average 1.598669623059867) internal successors, (721), 470 states have internal predecessors, (721), 98 states have call successors, (98), 27 states have call predecessors, (98), 28 states have return successors, (99), 94 states have call predecessors, (99), 97 states have call successors, (99) [2023-12-19 22:06:58,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 918 transitions. [2023-12-19 22:06:58,931 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 918 transitions. Word has length 62 [2023-12-19 22:06:58,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:06:58,931 INFO L495 AbstractCegarLoop]: Abstraction has 578 states and 918 transitions. [2023-12-19 22:06:58,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 22:06:58,931 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 918 transitions. [2023-12-19 22:06:58,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-19 22:06:58,932 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:06:58,932 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:06:58,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-19 22:06:58,932 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:06:58,932 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:06:58,932 INFO L85 PathProgramCache]: Analyzing trace with hash -35185025, now seen corresponding path program 1 times [2023-12-19 22:06:58,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:06:58,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892998041] [2023-12-19 22:06:58,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:06:58,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:06:58,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:59,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:06:59,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:59,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:06:59,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:59,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:06:59,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:59,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-19 22:06:59,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:59,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 22:06:59,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:59,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:06:59,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:59,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-19 22:06:59,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:59,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 22:06:59,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:06:59,105 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-19 22:06:59,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:06:59,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892998041] [2023-12-19 22:06:59,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892998041] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:06:59,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:06:59,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 22:06:59,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991686206] [2023-12-19 22:06:59,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:06:59,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 22:06:59,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:06:59,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 22:06:59,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 22:06:59,106 INFO L87 Difference]: Start difference. First operand 578 states and 918 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 22:07:01,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:07:01,216 INFO L93 Difference]: Finished difference Result 1274 states and 2038 transitions. [2023-12-19 22:07:01,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 22:07:01,216 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 62 [2023-12-19 22:07:01,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:07:01,219 INFO L225 Difference]: With dead ends: 1274 [2023-12-19 22:07:01,219 INFO L226 Difference]: Without dead ends: 690 [2023-12-19 22:07:01,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-19 22:07:01,221 INFO L413 NwaCegarLoop]: 489 mSDtfsCounter, 634 mSDsluCounter, 1011 mSDsCounter, 0 mSdLazyCounter, 1657 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 711 SdHoareTripleChecker+Valid, 1500 SdHoareTripleChecker+Invalid, 1765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 1657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-19 22:07:01,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [711 Valid, 1500 Invalid, 1765 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 1657 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-19 22:07:01,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2023-12-19 22:07:01,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 560. [2023-12-19 22:07:01,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 436 states have (on average 1.603211009174312) internal successors, (699), 453 states have internal predecessors, (699), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-19 22:07:01,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 892 transitions. [2023-12-19 22:07:01,257 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 892 transitions. Word has length 62 [2023-12-19 22:07:01,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:07:01,257 INFO L495 AbstractCegarLoop]: Abstraction has 560 states and 892 transitions. [2023-12-19 22:07:01,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 22:07:01,257 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 892 transitions. [2023-12-19 22:07:01,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-19 22:07:01,257 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:07:01,257 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:07:01,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-19 22:07:01,258 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:07:01,258 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:07:01,258 INFO L85 PathProgramCache]: Analyzing trace with hash -2077355728, now seen corresponding path program 1 times [2023-12-19 22:07:01,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:07:01,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159714089] [2023-12-19 22:07:01,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:07:01,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:07:01,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:01,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:07:01,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:01,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:01,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:01,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:07:01,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:01,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-19 22:07:01,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:01,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-19 22:07:01,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:01,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:01,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:01,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-19 22:07:01,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:01,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 22:07:01,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:01,469 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-19 22:07:01,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:07:01,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159714089] [2023-12-19 22:07:01,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159714089] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:07:01,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:07:01,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 22:07:01,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924698612] [2023-12-19 22:07:01,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:07:01,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 22:07:01,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:07:01,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 22:07:01,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 22:07:01,471 INFO L87 Difference]: Start difference. First operand 560 states and 892 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 22:07:03,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:07:03,510 INFO L93 Difference]: Finished difference Result 1217 states and 1959 transitions. [2023-12-19 22:07:03,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 22:07:03,511 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 63 [2023-12-19 22:07:03,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:07:03,514 INFO L225 Difference]: With dead ends: 1217 [2023-12-19 22:07:03,514 INFO L226 Difference]: Without dead ends: 716 [2023-12-19 22:07:03,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-19 22:07:03,517 INFO L413 NwaCegarLoop]: 461 mSDtfsCounter, 672 mSDsluCounter, 926 mSDsCounter, 0 mSdLazyCounter, 1710 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 749 SdHoareTripleChecker+Valid, 1387 SdHoareTripleChecker+Invalid, 1820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 1710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-19 22:07:03,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [749 Valid, 1387 Invalid, 1820 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 1710 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-19 22:07:03,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2023-12-19 22:07:03,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 570. [2023-12-19 22:07:03,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 446 states have (on average 1.5896860986547086) internal successors, (709), 463 states have internal predecessors, (709), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-19 22:07:03,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 902 transitions. [2023-12-19 22:07:03,575 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 902 transitions. Word has length 63 [2023-12-19 22:07:03,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:07:03,576 INFO L495 AbstractCegarLoop]: Abstraction has 570 states and 902 transitions. [2023-12-19 22:07:03,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 22:07:03,576 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 902 transitions. [2023-12-19 22:07:03,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-19 22:07:03,576 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:07:03,577 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:07:03,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-19 22:07:03,577 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:07:03,577 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:07:03,577 INFO L85 PathProgramCache]: Analyzing trace with hash -1258989996, now seen corresponding path program 1 times [2023-12-19 22:07:03,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:07:03,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173684878] [2023-12-19 22:07:03,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:07:03,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:07:03,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:03,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:07:03,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:03,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:03,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:03,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:07:03,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:03,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 22:07:03,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:03,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-19 22:07:03,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:03,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:03,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:03,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-19 22:07:03,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:03,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-19 22:07:03,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:03,801 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-19 22:07:03,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:07:03,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173684878] [2023-12-19 22:07:03,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173684878] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:07:03,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:07:03,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 22:07:03,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159540922] [2023-12-19 22:07:03,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:07:03,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 22:07:03,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:07:03,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 22:07:03,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 22:07:03,803 INFO L87 Difference]: Start difference. First operand 570 states and 902 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-19 22:07:06,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:07:06,463 INFO L93 Difference]: Finished difference Result 1786 states and 2908 transitions. [2023-12-19 22:07:06,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 22:07:06,464 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 64 [2023-12-19 22:07:06,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:07:06,469 INFO L225 Difference]: With dead ends: 1786 [2023-12-19 22:07:06,469 INFO L226 Difference]: Without dead ends: 1286 [2023-12-19 22:07:06,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-19 22:07:06,471 INFO L413 NwaCegarLoop]: 535 mSDtfsCounter, 1826 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 1199 mSolverCounterSat, 387 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1924 SdHoareTripleChecker+Valid, 1026 SdHoareTripleChecker+Invalid, 1586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 387 IncrementalHoareTripleChecker+Valid, 1199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-19 22:07:06,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1924 Valid, 1026 Invalid, 1586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [387 Valid, 1199 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-19 22:07:06,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1286 states. [2023-12-19 22:07:06,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1286 to 996. [2023-12-19 22:07:06,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 996 states, 780 states have (on average 1.6128205128205129) internal successors, (1258), 806 states have internal predecessors, (1258), 170 states have call successors, (170), 47 states have call predecessors, (170), 45 states have return successors, (175), 157 states have call predecessors, (175), 168 states have call successors, (175) [2023-12-19 22:07:06,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 996 states to 996 states and 1603 transitions. [2023-12-19 22:07:06,581 INFO L78 Accepts]: Start accepts. Automaton has 996 states and 1603 transitions. Word has length 64 [2023-12-19 22:07:06,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:07:06,582 INFO L495 AbstractCegarLoop]: Abstraction has 996 states and 1603 transitions. [2023-12-19 22:07:06,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-19 22:07:06,582 INFO L276 IsEmpty]: Start isEmpty. Operand 996 states and 1603 transitions. [2023-12-19 22:07:06,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-19 22:07:06,586 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:07:06,586 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:07:06,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-19 22:07:06,586 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:07:06,586 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:07:06,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1006336597, now seen corresponding path program 1 times [2023-12-19 22:07:06,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:07:06,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205137155] [2023-12-19 22:07:06,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:07:06,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:07:06,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:06,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:07:06,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:06,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:06,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:06,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:07:06,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:06,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 22:07:06,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:07,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 22:07:07,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:07,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:07,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:07,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:07,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:07,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:07:07,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:07,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 22:07:07,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:07,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:07,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:07,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:07,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:07,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:07:07,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:07,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-19 22:07:07,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:07,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 22:07:07,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:07,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:07,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:07,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-19 22:07:07,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:07,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-19 22:07:07,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:07,098 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-19 22:07:07,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:07:07,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205137155] [2023-12-19 22:07:07,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205137155] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:07:07,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [985298650] [2023-12-19 22:07:07,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:07:07,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:07:07,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:07:07,102 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) [2023-12-19 22:07:07,107 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-19 22:07:07,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:07,395 INFO L262 TraceCheckSpWp]: Trace formula consists of 1429 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 22:07:07,406 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:07:07,435 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-19 22:07:07,435 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 22:07:07,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [985298650] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:07:07,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 22:07:07,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2023-12-19 22:07:07,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005523963] [2023-12-19 22:07:07,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:07:07,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 22:07:07,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:07:07,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 22:07:07,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-19 22:07:07,439 INFO L87 Difference]: Start difference. First operand 996 states and 1603 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-19 22:07:07,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:07:07,650 INFO L93 Difference]: Finished difference Result 2836 states and 4681 transitions. [2023-12-19 22:07:07,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 22:07:07,651 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 114 [2023-12-19 22:07:07,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:07:07,659 INFO L225 Difference]: With dead ends: 2836 [2023-12-19 22:07:07,659 INFO L226 Difference]: Without dead ends: 1911 [2023-12-19 22:07:07,662 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-19 22:07:07,662 INFO L413 NwaCegarLoop]: 888 mSDtfsCounter, 849 mSDsluCounter, 773 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 849 SdHoareTripleChecker+Valid, 1661 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 22:07:07,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [849 Valid, 1661 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 22:07:07,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1911 states. [2023-12-19 22:07:07,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1911 to 1899. [2023-12-19 22:07:07,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1899 states, 1484 states have (on average 1.6273584905660377) internal successors, (2415), 1533 states have internal predecessors, (2415), 327 states have call successors, (327), 89 states have call predecessors, (327), 87 states have return successors, (366), 306 states have call predecessors, (366), 323 states have call successors, (366) [2023-12-19 22:07:07,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1899 states to 1899 states and 3108 transitions. [2023-12-19 22:07:07,836 INFO L78 Accepts]: Start accepts. Automaton has 1899 states and 3108 transitions. Word has length 114 [2023-12-19 22:07:07,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:07:07,836 INFO L495 AbstractCegarLoop]: Abstraction has 1899 states and 3108 transitions. [2023-12-19 22:07:07,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-19 22:07:07,837 INFO L276 IsEmpty]: Start isEmpty. Operand 1899 states and 3108 transitions. [2023-12-19 22:07:07,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-19 22:07:07,839 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:07:07,839 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:07:07,860 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-19 22:07:08,046 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,SelfDestructingSolverStorable17 [2023-12-19 22:07:08,046 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:07:08,046 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:07:08,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1515809687, now seen corresponding path program 1 times [2023-12-19 22:07:08,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:07:08,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124615984] [2023-12-19 22:07:08,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:07:08,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:07:08,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:08,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:07:08,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:08,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:08,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:08,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:07:08,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:08,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 22:07:08,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:08,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 22:07:08,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:08,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:08,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:08,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:08,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:08,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:07:08,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:08,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 22:07:08,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:08,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:08,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:08,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:08,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:08,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:07:08,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:08,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-19 22:07:08,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:08,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 22:07:08,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:08,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:08,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:08,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-19 22:07:08,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:08,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-19 22:07:08,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:08,556 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-19 22:07:08,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:07:08,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124615984] [2023-12-19 22:07:08,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124615984] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:07:08,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [907308627] [2023-12-19 22:07:08,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:07:08,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:07:08,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:07:08,557 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) [2023-12-19 22:07:08,581 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-19 22:07:08,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:08,818 INFO L262 TraceCheckSpWp]: Trace formula consists of 1430 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-19 22:07:08,822 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:07:08,924 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-19 22:07:08,925 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 22:07:08,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [907308627] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:07:08,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 22:07:08,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 14 [2023-12-19 22:07:08,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59845810] [2023-12-19 22:07:08,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:07:08,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 22:07:08,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:07:08,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 22:07:08,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2023-12-19 22:07:08,926 INFO L87 Difference]: Start difference. First operand 1899 states and 3108 transitions. Second operand has 6 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-19 22:07:09,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:07:09,481 INFO L93 Difference]: Finished difference Result 4876 states and 7996 transitions. [2023-12-19 22:07:09,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 22:07:09,482 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 114 [2023-12-19 22:07:09,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:07:09,493 INFO L225 Difference]: With dead ends: 4876 [2023-12-19 22:07:09,493 INFO L226 Difference]: Without dead ends: 3047 [2023-12-19 22:07:09,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2023-12-19 22:07:09,500 INFO L413 NwaCegarLoop]: 1122 mSDtfsCounter, 833 mSDsluCounter, 3267 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 838 SdHoareTripleChecker+Valid, 4389 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 22:07:09,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [838 Valid, 4389 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 22:07:09,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3047 states. [2023-12-19 22:07:09,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3047 to 3041. [2023-12-19 22:07:09,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3041 states, 2360 states have (on average 1.5885593220338983) internal successors, (3749), 2413 states have internal predecessors, (3749), 525 states have call successors, (525), 151 states have call predecessors, (525), 155 states have return successors, (656), 508 states have call predecessors, (656), 517 states have call successors, (656) [2023-12-19 22:07:09,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3041 states to 3041 states and 4930 transitions. [2023-12-19 22:07:09,778 INFO L78 Accepts]: Start accepts. Automaton has 3041 states and 4930 transitions. Word has length 114 [2023-12-19 22:07:09,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:07:09,779 INFO L495 AbstractCegarLoop]: Abstraction has 3041 states and 4930 transitions. [2023-12-19 22:07:09,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-19 22:07:09,779 INFO L276 IsEmpty]: Start isEmpty. Operand 3041 states and 4930 transitions. [2023-12-19 22:07:09,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-19 22:07:09,781 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:07:09,782 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:07:09,805 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-19 22:07:09,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:07:09,989 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:07:09,989 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:07:09,990 INFO L85 PathProgramCache]: Analyzing trace with hash 962676370, now seen corresponding path program 1 times [2023-12-19 22:07:09,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:07:09,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080434315] [2023-12-19 22:07:09,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:07:09,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:07:10,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:10,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:07:10,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:10,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:10,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:10,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:07:10,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:10,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 22:07:10,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:10,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-19 22:07:10,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:10,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:10,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:10,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:10,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:10,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:07:10,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:10,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 22:07:10,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:10,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:10,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:10,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:10,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:10,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:07:10,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:10,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-19 22:07:10,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:10,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-19 22:07:10,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:10,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:10,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:10,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 22:07:10,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:10,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-19 22:07:10,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:10,551 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-19 22:07:10,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:07:10,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080434315] [2023-12-19 22:07:10,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080434315] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:07:10,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [440892474] [2023-12-19 22:07:10,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:07:10,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:07:10,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:07:10,552 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) [2023-12-19 22:07:10,556 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-19 22:07:10,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:10,812 INFO L262 TraceCheckSpWp]: Trace formula consists of 1427 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-19 22:07:10,816 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:07:10,911 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-19 22:07:10,911 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 22:07:10,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [440892474] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:07:10,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 22:07:10,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [15] total 18 [2023-12-19 22:07:10,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145088093] [2023-12-19 22:07:10,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:07:10,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 22:07:10,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:07:10,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 22:07:10,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2023-12-19 22:07:10,913 INFO L87 Difference]: Start difference. First operand 3041 states and 4930 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-19 22:07:11,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:07:11,580 INFO L93 Difference]: Finished difference Result 6076 states and 10193 transitions. [2023-12-19 22:07:11,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 22:07:11,581 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 115 [2023-12-19 22:07:11,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:07:11,592 INFO L225 Difference]: With dead ends: 6076 [2023-12-19 22:07:11,592 INFO L226 Difference]: Without dead ends: 3105 [2023-12-19 22:07:11,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2023-12-19 22:07:11,605 INFO L413 NwaCegarLoop]: 803 mSDtfsCounter, 792 mSDsluCounter, 1251 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 810 SdHoareTripleChecker+Valid, 2054 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 22:07:11,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [810 Valid, 2054 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 22:07:11,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3105 states. [2023-12-19 22:07:11,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3105 to 3105. [2023-12-19 22:07:11,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3105 states, 2416 states have (on average 1.591473509933775) internal successors, (3845), 2469 states have internal predecessors, (3845), 525 states have call successors, (525), 159 states have call predecessors, (525), 163 states have return successors, (664), 508 states have call predecessors, (664), 517 states have call successors, (664) [2023-12-19 22:07:11,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3105 states to 3105 states and 5034 transitions. [2023-12-19 22:07:11,911 INFO L78 Accepts]: Start accepts. Automaton has 3105 states and 5034 transitions. Word has length 115 [2023-12-19 22:07:11,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:07:11,912 INFO L495 AbstractCegarLoop]: Abstraction has 3105 states and 5034 transitions. [2023-12-19 22:07:11,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-19 22:07:11,912 INFO L276 IsEmpty]: Start isEmpty. Operand 3105 states and 5034 transitions. [2023-12-19 22:07:11,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-19 22:07:11,915 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:07:11,916 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:07:11,923 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-19 22:07:12,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:07:12,123 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:07:12,123 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:07:12,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1781759670, now seen corresponding path program 1 times [2023-12-19 22:07:12,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:07:12,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279300856] [2023-12-19 22:07:12,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:07:12,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:07:12,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:12,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:07:12,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:12,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:12,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:12,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:07:12,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:12,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 22:07:12,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:12,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-19 22:07:12,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:12,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:12,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:12,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:12,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:12,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 22:07:12,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:12,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 22:07:12,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:12,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:12,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:12,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:12,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:12,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 22:07:12,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:12,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-19 22:07:12,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:12,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-19 22:07:12,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:12,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:12,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:12,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-19 22:07:12,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:12,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-19 22:07:12,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:12,634 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-12-19 22:07:12,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:07:12,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279300856] [2023-12-19 22:07:12,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279300856] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:07:12,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1930585620] [2023-12-19 22:07:12,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:07:12,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:07:12,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:07:12,650 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) [2023-12-19 22:07:12,724 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-19 22:07:12,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:12,965 INFO L262 TraceCheckSpWp]: Trace formula consists of 1430 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-19 22:07:12,969 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:07:13,054 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-12-19 22:07:13,055 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 22:07:13,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1930585620] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:07:13,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 22:07:13,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 12 [2023-12-19 22:07:13,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371182668] [2023-12-19 22:07:13,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:07:13,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 22:07:13,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:07:13,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 22:07:13,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-12-19 22:07:13,056 INFO L87 Difference]: Start difference. First operand 3105 states and 5034 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-19 22:07:13,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:07:13,697 INFO L93 Difference]: Finished difference Result 6204 states and 10377 transitions. [2023-12-19 22:07:13,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 22:07:13,698 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 118 [2023-12-19 22:07:13,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:07:13,710 INFO L225 Difference]: With dead ends: 6204 [2023-12-19 22:07:13,710 INFO L226 Difference]: Without dead ends: 3169 [2023-12-19 22:07:13,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-12-19 22:07:13,722 INFO L413 NwaCegarLoop]: 803 mSDtfsCounter, 802 mSDsluCounter, 1251 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 820 SdHoareTripleChecker+Valid, 2054 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 22:07:13,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [820 Valid, 2054 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 22:07:13,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3169 states. [2023-12-19 22:07:13,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3169 to 3169. [2023-12-19 22:07:13,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3169 states, 2472 states have (on average 1.5942556634304208) internal successors, (3941), 2525 states have internal predecessors, (3941), 525 states have call successors, (525), 167 states have call predecessors, (525), 171 states have return successors, (672), 508 states have call predecessors, (672), 517 states have call successors, (672) [2023-12-19 22:07:13,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3169 states to 3169 states and 5138 transitions. [2023-12-19 22:07:13,999 INFO L78 Accepts]: Start accepts. Automaton has 3169 states and 5138 transitions. Word has length 118 [2023-12-19 22:07:14,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:07:14,000 INFO L495 AbstractCegarLoop]: Abstraction has 3169 states and 5138 transitions. [2023-12-19 22:07:14,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-19 22:07:14,000 INFO L276 IsEmpty]: Start isEmpty. Operand 3169 states and 5138 transitions. [2023-12-19 22:07:14,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-19 22:07:14,003 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:07:14,003 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:07:14,009 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-19 22:07:14,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:07:14,209 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:07:14,210 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:07:14,210 INFO L85 PathProgramCache]: Analyzing trace with hash -950218226, now seen corresponding path program 1 times [2023-12-19 22:07:14,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:07:14,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898551892] [2023-12-19 22:07:14,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:07:14,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:07:14,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:14,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:07:14,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:14,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:14,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:14,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:07:14,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:14,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 22:07:14,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:14,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-19 22:07:14,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:14,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:14,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:14,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:14,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:14,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 22:07:14,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:14,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-19 22:07:14,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:14,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:14,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:14,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:14,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:14,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 22:07:14,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:14,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 22:07:14,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:14,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-19 22:07:14,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:14,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:14,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:14,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 22:07:14,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:14,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-19 22:07:14,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:14,705 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-19 22:07:14,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:07:14,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898551892] [2023-12-19 22:07:14,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898551892] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:07:14,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [591691473] [2023-12-19 22:07:14,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:07:14,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:07:14,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:07:14,706 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 22:07:14,739 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-19 22:07:14,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:14,969 INFO L262 TraceCheckSpWp]: Trace formula consists of 1433 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-19 22:07:14,971 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:07:15,056 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-19 22:07:15,056 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 22:07:15,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [591691473] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:07:15,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 22:07:15,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 12 [2023-12-19 22:07:15,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366844382] [2023-12-19 22:07:15,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:07:15,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 22:07:15,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:07:15,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 22:07:15,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-12-19 22:07:15,058 INFO L87 Difference]: Start difference. First operand 3169 states and 5138 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-19 22:07:15,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:07:15,654 INFO L93 Difference]: Finished difference Result 6332 states and 10561 transitions. [2023-12-19 22:07:15,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 22:07:15,655 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 121 [2023-12-19 22:07:15,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:07:15,666 INFO L225 Difference]: With dead ends: 6332 [2023-12-19 22:07:15,666 INFO L226 Difference]: Without dead ends: 3233 [2023-12-19 22:07:15,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-12-19 22:07:15,678 INFO L413 NwaCegarLoop]: 803 mSDtfsCounter, 799 mSDsluCounter, 1251 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 817 SdHoareTripleChecker+Valid, 2054 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 22:07:15,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [817 Valid, 2054 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 22:07:15,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3233 states. [2023-12-19 22:07:15,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3233 to 3233. [2023-12-19 22:07:15,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3233 states, 2528 states have (on average 1.5969145569620253) internal successors, (4037), 2581 states have internal predecessors, (4037), 525 states have call successors, (525), 175 states have call predecessors, (525), 179 states have return successors, (680), 508 states have call predecessors, (680), 517 states have call successors, (680) [2023-12-19 22:07:15,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3233 states to 3233 states and 5242 transitions. [2023-12-19 22:07:15,963 INFO L78 Accepts]: Start accepts. Automaton has 3233 states and 5242 transitions. Word has length 121 [2023-12-19 22:07:15,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:07:15,963 INFO L495 AbstractCegarLoop]: Abstraction has 3233 states and 5242 transitions. [2023-12-19 22:07:15,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-19 22:07:15,963 INFO L276 IsEmpty]: Start isEmpty. Operand 3233 states and 5242 transitions. [2023-12-19 22:07:15,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-19 22:07:15,966 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:07:15,966 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:07:15,973 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-19 22:07:16,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-12-19 22:07:16,173 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:07:16,173 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:07:16,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1699596842, now seen corresponding path program 1 times [2023-12-19 22:07:16,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:07:16,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984970718] [2023-12-19 22:07:16,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:07:16,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:07:16,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:16,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:07:16,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:16,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:16,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:16,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:07:16,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:16,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 22:07:16,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:16,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-19 22:07:16,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:16,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:16,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:16,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:16,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:16,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 22:07:16,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:16,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-12-19 22:07:16,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:16,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:16,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:16,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:16,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:16,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 22:07:16,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:16,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-19 22:07:16,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:16,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-19 22:07:16,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:16,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:16,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:16,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-19 22:07:16,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:16,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-19 22:07:16,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:16,623 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-19 22:07:16,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:07:16,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984970718] [2023-12-19 22:07:16,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984970718] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:07:16,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2001221591] [2023-12-19 22:07:16,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:07:16,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:07:16,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:07:16,625 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 22:07:16,637 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-19 22:07:16,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:16,874 INFO L262 TraceCheckSpWp]: Trace formula consists of 1436 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-19 22:07:16,876 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:07:16,975 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-19 22:07:16,976 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 22:07:16,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2001221591] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:07:16,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 22:07:16,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 12 [2023-12-19 22:07:16,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412574558] [2023-12-19 22:07:16,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:07:16,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 22:07:16,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:07:16,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 22:07:16,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-12-19 22:07:16,977 INFO L87 Difference]: Start difference. First operand 3233 states and 5242 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-19 22:07:17,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:07:17,691 INFO L93 Difference]: Finished difference Result 6460 states and 10745 transitions. [2023-12-19 22:07:17,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 22:07:17,692 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 124 [2023-12-19 22:07:17,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:07:17,703 INFO L225 Difference]: With dead ends: 6460 [2023-12-19 22:07:17,703 INFO L226 Difference]: Without dead ends: 3297 [2023-12-19 22:07:17,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-12-19 22:07:17,715 INFO L413 NwaCegarLoop]: 803 mSDtfsCounter, 781 mSDsluCounter, 1251 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 799 SdHoareTripleChecker+Valid, 2054 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 22:07:17,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [799 Valid, 2054 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 22:07:17,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3297 states. [2023-12-19 22:07:17,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3297 to 3297. [2023-12-19 22:07:17,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3297 states, 2584 states have (on average 1.5994582043343653) internal successors, (4133), 2637 states have internal predecessors, (4133), 525 states have call successors, (525), 183 states have call predecessors, (525), 187 states have return successors, (688), 508 states have call predecessors, (688), 517 states have call successors, (688) [2023-12-19 22:07:17,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3297 states to 3297 states and 5346 transitions. [2023-12-19 22:07:17,990 INFO L78 Accepts]: Start accepts. Automaton has 3297 states and 5346 transitions. Word has length 124 [2023-12-19 22:07:17,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:07:17,990 INFO L495 AbstractCegarLoop]: Abstraction has 3297 states and 5346 transitions. [2023-12-19 22:07:17,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-19 22:07:17,990 INFO L276 IsEmpty]: Start isEmpty. Operand 3297 states and 5346 transitions. [2023-12-19 22:07:17,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-19 22:07:17,993 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:07:17,993 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:07:18,002 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-19 22:07:18,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:07:18,202 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:07:18,202 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:07:18,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1062613110, now seen corresponding path program 1 times [2023-12-19 22:07:18,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:07:18,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082193723] [2023-12-19 22:07:18,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:07:18,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:07:18,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:18,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:07:18,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:18,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:18,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:18,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:07:18,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:18,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 22:07:18,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:18,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-19 22:07:18,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:18,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:18,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:18,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:18,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:18,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:07:18,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:18,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 22:07:18,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:18,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:18,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:18,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:18,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:18,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:07:18,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:18,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-19 22:07:18,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:18,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-19 22:07:18,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:18,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:18,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:18,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-19 22:07:18,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:18,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-19 22:07:18,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:18,893 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-19 22:07:18,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:07:18,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082193723] [2023-12-19 22:07:18,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082193723] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:07:18,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1515764137] [2023-12-19 22:07:18,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:07:18,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:07:18,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:07:18,895 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 22:07:18,919 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-19 22:07:19,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:19,151 INFO L262 TraceCheckSpWp]: Trace formula consists of 1439 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-19 22:07:19,154 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:07:19,292 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 22:07:19,293 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 22:07:19,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1515764137] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:07:19,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 22:07:19,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [14] total 18 [2023-12-19 22:07:19,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592957813] [2023-12-19 22:07:19,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:07:19,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 22:07:19,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:07:19,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 22:07:19,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2023-12-19 22:07:19,294 INFO L87 Difference]: Start difference. First operand 3297 states and 5346 transitions. Second operand has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 6 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2023-12-19 22:07:21,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:07:21,052 INFO L93 Difference]: Finished difference Result 6656 states and 10855 transitions. [2023-12-19 22:07:21,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 22:07:21,053 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 6 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) Word has length 127 [2023-12-19 22:07:21,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:07:21,065 INFO L225 Difference]: With dead ends: 6656 [2023-12-19 22:07:21,066 INFO L226 Difference]: Without dead ends: 3434 [2023-12-19 22:07:21,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2023-12-19 22:07:21,074 INFO L413 NwaCegarLoop]: 372 mSDtfsCounter, 1735 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 2260 mSolverCounterSat, 451 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1842 SdHoareTripleChecker+Valid, 902 SdHoareTripleChecker+Invalid, 2711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 451 IncrementalHoareTripleChecker+Valid, 2260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-19 22:07:21,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1842 Valid, 902 Invalid, 2711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [451 Valid, 2260 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-19 22:07:21,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3434 states. [2023-12-19 22:07:21,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3434 to 3188. [2023-12-19 22:07:21,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3188 states, 2402 states have (on average 1.5682764363030808) internal successors, (3767), 2493 states have internal predecessors, (3767), 606 states have call successors, (606), 169 states have call predecessors, (606), 179 states have return successors, (746), 577 states have call predecessors, (746), 598 states have call successors, (746) [2023-12-19 22:07:21,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3188 states to 3188 states and 5119 transitions. [2023-12-19 22:07:21,402 INFO L78 Accepts]: Start accepts. Automaton has 3188 states and 5119 transitions. Word has length 127 [2023-12-19 22:07:21,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:07:21,402 INFO L495 AbstractCegarLoop]: Abstraction has 3188 states and 5119 transitions. [2023-12-19 22:07:21,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 6 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2023-12-19 22:07:21,402 INFO L276 IsEmpty]: Start isEmpty. Operand 3188 states and 5119 transitions. [2023-12-19 22:07:21,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-19 22:07:21,405 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:07:21,405 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:07:21,412 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-19 22:07:21,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:07:21,613 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:07:21,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:07:21,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1741885364, now seen corresponding path program 1 times [2023-12-19 22:07:21,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:07:21,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184060206] [2023-12-19 22:07:21,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:07:21,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:07:21,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:21,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:07:21,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:21,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:21,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:21,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:07:21,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:21,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 22:07:21,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-19 22:07:22,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:22,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:22,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:07:22,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 22:07:22,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:22,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:22,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:07:22,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-19 22:07:22,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-19 22:07:22,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:22,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-19 22:07:22,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-19 22:07:22,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,349 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-19 22:07:22,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:07:22,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184060206] [2023-12-19 22:07:22,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184060206] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:07:22,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2074485125] [2023-12-19 22:07:22,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:07:22,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:07:22,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:07:22,369 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 22:07:22,370 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-19 22:07:22,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,637 INFO L262 TraceCheckSpWp]: Trace formula consists of 1442 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-19 22:07:22,640 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:07:22,756 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-19 22:07:22,757 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 22:07:22,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2074485125] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:07:22,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 22:07:22,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [14] total 19 [2023-12-19 22:07:22,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285786754] [2023-12-19 22:07:22,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:07:22,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 22:07:22,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:07:22,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 22:07:22,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2023-12-19 22:07:22,758 INFO L87 Difference]: Start difference. First operand 3188 states and 5119 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 4 states have call successors, (17), 4 states have call predecessors, (17), 5 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) [2023-12-19 22:07:25,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:07:25,793 INFO L93 Difference]: Finished difference Result 8396 states and 13809 transitions. [2023-12-19 22:07:25,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-19 22:07:25,794 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 4 states have call successors, (17), 4 states have call predecessors, (17), 5 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) Word has length 127 [2023-12-19 22:07:25,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:07:25,816 INFO L225 Difference]: With dead ends: 8396 [2023-12-19 22:07:25,816 INFO L226 Difference]: Without dead ends: 5280 [2023-12-19 22:07:25,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=119, Invalid=873, Unknown=0, NotChecked=0, Total=992 [2023-12-19 22:07:25,827 INFO L413 NwaCegarLoop]: 539 mSDtfsCounter, 2685 mSDsluCounter, 1475 mSDsCounter, 0 mSdLazyCounter, 5956 mSolverCounterSat, 671 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2786 SdHoareTripleChecker+Valid, 2014 SdHoareTripleChecker+Invalid, 6627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 671 IncrementalHoareTripleChecker+Valid, 5956 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-19 22:07:25,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2786 Valid, 2014 Invalid, 6627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [671 Valid, 5956 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-19 22:07:25,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5280 states. [2023-12-19 22:07:26,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5280 to 4900. [2023-12-19 22:07:26,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4900 states, 3645 states have (on average 1.570096021947874) internal successors, (5723), 3799 states have internal predecessors, (5723), 962 states have call successors, (962), 243 states have call predecessors, (962), 292 states have return successors, (1306), 934 states have call predecessors, (1306), 954 states have call successors, (1306) [2023-12-19 22:07:26,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4900 states to 4900 states and 7991 transitions. [2023-12-19 22:07:26,486 INFO L78 Accepts]: Start accepts. Automaton has 4900 states and 7991 transitions. Word has length 127 [2023-12-19 22:07:26,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:07:26,486 INFO L495 AbstractCegarLoop]: Abstraction has 4900 states and 7991 transitions. [2023-12-19 22:07:26,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 4 states have call successors, (17), 4 states have call predecessors, (17), 5 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) [2023-12-19 22:07:26,487 INFO L276 IsEmpty]: Start isEmpty. Operand 4900 states and 7991 transitions. [2023-12-19 22:07:26,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-19 22:07:26,491 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:07:26,491 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:07:26,513 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-19 22:07:26,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-12-19 22:07:26,700 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:07:26,701 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:07:26,701 INFO L85 PathProgramCache]: Analyzing trace with hash 344691701, now seen corresponding path program 1 times [2023-12-19 22:07:26,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:07:26,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586103775] [2023-12-19 22:07:26,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:07:26,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:07:26,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:27,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:07:27,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:27,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:27,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:27,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:07:27,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:27,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 22:07:27,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:27,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-19 22:07:27,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:27,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:27,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:27,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:27,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:27,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:07:27,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:27,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 22:07:27,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:27,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:27,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:27,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:27,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:27,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:07:27,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:27,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-19 22:07:27,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:27,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:07:27,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:27,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-19 22:07:27,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:27,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:27,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:27,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-19 22:07:27,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:27,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-19 22:07:27,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:27,436 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-12-19 22:07:27,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:07:27,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586103775] [2023-12-19 22:07:27,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586103775] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:07:27,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:07:27,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-19 22:07:27,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26290253] [2023-12-19 22:07:27,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:07:27,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 22:07:27,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:07:27,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 22:07:27,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-12-19 22:07:27,439 INFO L87 Difference]: Start difference. First operand 4900 states and 7991 transitions. Second operand has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 6 states have internal predecessors, (73), 4 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) [2023-12-19 22:07:42,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:07:42,070 INFO L93 Difference]: Finished difference Result 23168 states and 39633 transitions. [2023-12-19 22:07:42,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-12-19 22:07:42,070 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 6 states have internal predecessors, (73), 4 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) Word has length 131 [2023-12-19 22:07:42,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:07:42,144 INFO L225 Difference]: With dead ends: 23168 [2023-12-19 22:07:42,144 INFO L226 Difference]: Without dead ends: 18344 [2023-12-19 22:07:42,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=251, Invalid=619, Unknown=0, NotChecked=0, Total=870 [2023-12-19 22:07:42,165 INFO L413 NwaCegarLoop]: 661 mSDtfsCounter, 6730 mSDsluCounter, 996 mSDsCounter, 0 mSdLazyCounter, 4864 mSolverCounterSat, 2719 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6790 SdHoareTripleChecker+Valid, 1657 SdHoareTripleChecker+Invalid, 7583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2719 IncrementalHoareTripleChecker+Valid, 4864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2023-12-19 22:07:42,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6790 Valid, 1657 Invalid, 7583 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2719 Valid, 4864 Invalid, 0 Unknown, 0 Unchecked, 10.3s Time] [2023-12-19 22:07:42,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18344 states. [2023-12-19 22:07:43,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18344 to 4954. [2023-12-19 22:07:43,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4954 states, 3681 states have (on average 1.567508829122521) internal successors, (5770), 3833 states have internal predecessors, (5770), 977 states have call successors, (977), 243 states have call predecessors, (977), 295 states have return successors, (1310), 949 states have call predecessors, (1310), 969 states have call successors, (1310) [2023-12-19 22:07:43,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4954 states to 4954 states and 8057 transitions. [2023-12-19 22:07:43,172 INFO L78 Accepts]: Start accepts. Automaton has 4954 states and 8057 transitions. Word has length 131 [2023-12-19 22:07:43,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:07:43,174 INFO L495 AbstractCegarLoop]: Abstraction has 4954 states and 8057 transitions. [2023-12-19 22:07:43,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 6 states have internal predecessors, (73), 4 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) [2023-12-19 22:07:43,174 INFO L276 IsEmpty]: Start isEmpty. Operand 4954 states and 8057 transitions. [2023-12-19 22:07:43,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-19 22:07:43,177 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:07:43,177 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:07:43,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-19 22:07:43,177 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:07:43,177 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:07:43,177 INFO L85 PathProgramCache]: Analyzing trace with hash 272305143, now seen corresponding path program 1 times [2023-12-19 22:07:43,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:07:43,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228546780] [2023-12-19 22:07:43,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:07:43,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:07:43,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:43,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:07:43,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:43,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:43,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:43,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:07:43,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:43,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 22:07:43,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:43,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-19 22:07:43,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:43,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:43,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:43,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:43,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:43,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:07:43,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:43,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 22:07:43,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:43,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:43,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:43,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:43,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:43,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:07:43,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:43,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-19 22:07:43,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:43,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:07:43,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:43,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-19 22:07:43,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:43,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:43,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:43,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-19 22:07:43,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:43,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-19 22:07:43,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:43,781 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-19 22:07:43,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:07:43,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228546780] [2023-12-19 22:07:43,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228546780] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:07:43,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1727868916] [2023-12-19 22:07:43,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:07:43,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:07:43,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:07:43,782 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 22:07:43,784 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-19 22:07:44,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:44,044 INFO L262 TraceCheckSpWp]: Trace formula consists of 1457 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-19 22:07:44,046 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:07:44,152 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-19 22:07:44,152 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 22:07:44,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1727868916] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:07:44,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 22:07:44,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [14] total 18 [2023-12-19 22:07:44,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827186575] [2023-12-19 22:07:44,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:07:44,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 22:07:44,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:07:44,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 22:07:44,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2023-12-19 22:07:44,154 INFO L87 Difference]: Start difference. First operand 4954 states and 8057 transitions. Second operand has 6 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-19 22:07:45,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:07:45,142 INFO L93 Difference]: Finished difference Result 4998 states and 8100 transitions. [2023-12-19 22:07:45,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 22:07:45,143 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) Word has length 131 [2023-12-19 22:07:45,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:07:45,157 INFO L225 Difference]: With dead ends: 4998 [2023-12-19 22:07:45,158 INFO L226 Difference]: Without dead ends: 4996 [2023-12-19 22:07:45,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2023-12-19 22:07:45,159 INFO L413 NwaCegarLoop]: 922 mSDtfsCounter, 348 mSDsluCounter, 2749 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 3671 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 22:07:45,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [350 Valid, 3671 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 22:07:45,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4996 states. [2023-12-19 22:07:45,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4996 to 4954. [2023-12-19 22:07:45,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4954 states, 3681 states have (on average 1.5601738657973376) internal successors, (5743), 3833 states have internal predecessors, (5743), 977 states have call successors, (977), 243 states have call predecessors, (977), 295 states have return successors, (1310), 949 states have call predecessors, (1310), 969 states have call successors, (1310) [2023-12-19 22:07:45,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4954 states to 4954 states and 8030 transitions. [2023-12-19 22:07:45,989 INFO L78 Accepts]: Start accepts. Automaton has 4954 states and 8030 transitions. Word has length 131 [2023-12-19 22:07:45,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:07:45,989 INFO L495 AbstractCegarLoop]: Abstraction has 4954 states and 8030 transitions. [2023-12-19 22:07:45,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-19 22:07:45,990 INFO L276 IsEmpty]: Start isEmpty. Operand 4954 states and 8030 transitions. [2023-12-19 22:07:45,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-19 22:07:45,993 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:07:45,994 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:07:46,018 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-19 22:07:46,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-12-19 22:07:46,202 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:07:46,202 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:07:46,202 INFO L85 PathProgramCache]: Analyzing trace with hash 2034462549, now seen corresponding path program 1 times [2023-12-19 22:07:46,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:07:46,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963150013] [2023-12-19 22:07:46,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:07:46,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:07:46,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:46,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:07:46,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:46,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:46,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:46,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:07:46,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:46,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 22:07:46,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:46,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-19 22:07:46,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:46,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:46,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:46,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:46,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:46,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:07:46,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:46,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-19 22:07:46,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:46,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 22:07:46,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:46,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-19 22:07:46,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:46,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 22:07:46,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:46,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 22:07:46,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:46,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-19 22:07:46,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:46,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-19 22:07:46,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:46,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-12-19 22:07:46,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:46,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:46,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:46,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-12-19 22:07:46,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:46,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-12-19 22:07:46,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:46,763 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2023-12-19 22:07:46,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:07:46,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963150013] [2023-12-19 22:07:46,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963150013] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:07:46,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:07:46,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-19 22:07:46,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982006957] [2023-12-19 22:07:46,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:07:46,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-19 22:07:46,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:07:46,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-19 22:07:46,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-12-19 22:07:46,764 INFO L87 Difference]: Start difference. First operand 4954 states and 8030 transitions. Second operand has 10 states, 10 states have (on average 8.7) internal successors, (87), 7 states have internal predecessors, (87), 4 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (18), 5 states have call predecessors, (18), 4 states have call successors, (18) [2023-12-19 22:07:58,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:07:58,000 INFO L93 Difference]: Finished difference Result 20016 states and 34463 transitions. [2023-12-19 22:07:58,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-19 22:07:58,001 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 7 states have internal predecessors, (87), 4 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (18), 5 states have call predecessors, (18), 4 states have call successors, (18) Word has length 157 [2023-12-19 22:07:58,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:07:58,079 INFO L225 Difference]: With dead ends: 20016 [2023-12-19 22:07:58,079 INFO L226 Difference]: Without dead ends: 15134 [2023-12-19 22:07:58,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=186, Invalid=366, Unknown=0, NotChecked=0, Total=552 [2023-12-19 22:07:58,100 INFO L413 NwaCegarLoop]: 365 mSDtfsCounter, 3700 mSDsluCounter, 1272 mSDsCounter, 0 mSdLazyCounter, 3813 mSolverCounterSat, 1342 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3876 SdHoareTripleChecker+Valid, 1637 SdHoareTripleChecker+Invalid, 5155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1342 IncrementalHoareTripleChecker+Valid, 3813 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2023-12-19 22:07:58,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3876 Valid, 1637 Invalid, 5155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1342 Valid, 3813 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2023-12-19 22:07:58,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15134 states. [2023-12-19 22:07:59,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15134 to 4978. [2023-12-19 22:07:59,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4978 states, 3705 states have (on average 1.5565452091767882) internal successors, (5767), 3857 states have internal predecessors, (5767), 977 states have call successors, (977), 243 states have call predecessors, (977), 295 states have return successors, (1310), 949 states have call predecessors, (1310), 969 states have call successors, (1310) [2023-12-19 22:07:59,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4978 states to 4978 states and 8054 transitions. [2023-12-19 22:07:59,253 INFO L78 Accepts]: Start accepts. Automaton has 4978 states and 8054 transitions. Word has length 157 [2023-12-19 22:07:59,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:07:59,254 INFO L495 AbstractCegarLoop]: Abstraction has 4978 states and 8054 transitions. [2023-12-19 22:07:59,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 7 states have internal predecessors, (87), 4 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (18), 5 states have call predecessors, (18), 4 states have call successors, (18) [2023-12-19 22:07:59,254 INFO L276 IsEmpty]: Start isEmpty. Operand 4978 states and 8054 transitions. [2023-12-19 22:07:59,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-12-19 22:07:59,257 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:07:59,258 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:07:59,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-19 22:07:59,258 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:07:59,258 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:07:59,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1550481297, now seen corresponding path program 1 times [2023-12-19 22:07:59,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:07:59,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629411311] [2023-12-19 22:07:59,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:07:59,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:07:59,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:59,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:07:59,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:59,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:59,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:59,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:07:59,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:59,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 22:07:59,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:59,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-19 22:07:59,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:59,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:59,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:59,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:59,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:59,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:07:59,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:59,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:59,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:59,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 22:07:59,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:59,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 22:07:59,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:59,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-19 22:07:59,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:59,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-19 22:07:59,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:59,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-19 22:07:59,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:59,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-19 22:07:59,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:59,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-19 22:07:59,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:59,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-19 22:07:59,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:59,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:59,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:59,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-12-19 22:07:59,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:59,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-19 22:07:59,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:59,808 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2023-12-19 22:07:59,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:07:59,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629411311] [2023-12-19 22:07:59,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629411311] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:07:59,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1527353750] [2023-12-19 22:07:59,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:07:59,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:07:59,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:07:59,820 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 22:07:59,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-19 22:08:00,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:00,107 INFO L262 TraceCheckSpWp]: Trace formula consists of 1572 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 22:08:00,110 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:08:00,130 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-19 22:08:00,130 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 22:08:00,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1527353750] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:08:00,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 22:08:00,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2023-12-19 22:08:00,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107963543] [2023-12-19 22:08:00,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:08:00,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 22:08:00,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:08:00,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 22:08:00,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-12-19 22:08:00,133 INFO L87 Difference]: Start difference. First operand 4978 states and 8054 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-19 22:08:01,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:08:01,177 INFO L93 Difference]: Finished difference Result 10118 states and 16584 transitions. [2023-12-19 22:08:01,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 22:08:01,177 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 164 [2023-12-19 22:08:01,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:08:01,196 INFO L225 Difference]: With dead ends: 10118 [2023-12-19 22:08:01,196 INFO L226 Difference]: Without dead ends: 5212 [2023-12-19 22:08:01,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2023-12-19 22:08:01,246 INFO L413 NwaCegarLoop]: 766 mSDtfsCounter, 213 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 2274 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 22:08:01,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 2274 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 22:08:01,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5212 states. [2023-12-19 22:08:02,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5212 to 5212. [2023-12-19 22:08:02,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5212 states, 3933 states have (on average 1.57767607424358) internal successors, (6205), 4085 states have internal predecessors, (6205), 977 states have call successors, (977), 249 states have call predecessors, (977), 301 states have return successors, (1310), 949 states have call predecessors, (1310), 969 states have call successors, (1310) [2023-12-19 22:08:02,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5212 states to 5212 states and 8492 transitions. [2023-12-19 22:08:02,163 INFO L78 Accepts]: Start accepts. Automaton has 5212 states and 8492 transitions. Word has length 164 [2023-12-19 22:08:02,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:08:02,163 INFO L495 AbstractCegarLoop]: Abstraction has 5212 states and 8492 transitions. [2023-12-19 22:08:02,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-19 22:08:02,164 INFO L276 IsEmpty]: Start isEmpty. Operand 5212 states and 8492 transitions. [2023-12-19 22:08:02,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-12-19 22:08:02,168 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:08:02,168 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:08:02,186 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-19 22:08:02,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-12-19 22:08:02,387 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:08:02,388 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:08:02,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1657326437, now seen corresponding path program 1 times [2023-12-19 22:08:02,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:08:02,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783662028] [2023-12-19 22:08:02,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:08:02,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:08:02,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:02,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:08:02,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:02,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:02,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:02,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:08:02,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:02,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 22:08:02,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:02,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-19 22:08:02,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:02,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:02,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:02,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:02,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:02,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:08:02,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:02,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:02,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:02,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 22:08:02,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:02,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 22:08:02,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:02,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 22:08:02,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:02,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-19 22:08:02,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:02,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-19 22:08:02,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:02,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-19 22:08:02,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:02,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-19 22:08:02,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:02,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-12-19 22:08:02,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:02,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:02,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:02,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-19 22:08:02,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:02,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-12-19 22:08:02,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:02,937 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2023-12-19 22:08:02,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:08:02,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783662028] [2023-12-19 22:08:02,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783662028] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:08:02,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2093474467] [2023-12-19 22:08:02,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:08:02,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:08:02,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:08:02,939 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 22:08:02,943 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-19 22:08:03,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:03,198 INFO L262 TraceCheckSpWp]: Trace formula consists of 1577 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 22:08:03,201 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:08:03,222 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-12-19 22:08:03,222 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 22:08:03,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2093474467] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:08:03,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 22:08:03,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2023-12-19 22:08:03,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146611769] [2023-12-19 22:08:03,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:08:03,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 22:08:03,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:08:03,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 22:08:03,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-12-19 22:08:03,224 INFO L87 Difference]: Start difference. First operand 5212 states and 8492 transitions. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-19 22:08:04,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:08:04,259 INFO L93 Difference]: Finished difference Result 10586 states and 17448 transitions. [2023-12-19 22:08:04,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 22:08:04,259 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 169 [2023-12-19 22:08:04,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:08:04,277 INFO L225 Difference]: With dead ends: 10586 [2023-12-19 22:08:04,277 INFO L226 Difference]: Without dead ends: 5446 [2023-12-19 22:08:04,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2023-12-19 22:08:04,291 INFO L413 NwaCegarLoop]: 766 mSDtfsCounter, 211 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 2274 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 22:08:04,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 2274 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 22:08:04,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5446 states. [2023-12-19 22:08:05,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5446 to 5446. [2023-12-19 22:08:05,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5446 states, 4161 states have (on average 1.5964912280701755) internal successors, (6643), 4313 states have internal predecessors, (6643), 977 states have call successors, (977), 255 states have call predecessors, (977), 307 states have return successors, (1310), 949 states have call predecessors, (1310), 969 states have call successors, (1310) [2023-12-19 22:08:05,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5446 states to 5446 states and 8930 transitions. [2023-12-19 22:08:05,269 INFO L78 Accepts]: Start accepts. Automaton has 5446 states and 8930 transitions. Word has length 169 [2023-12-19 22:08:05,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:08:05,270 INFO L495 AbstractCegarLoop]: Abstraction has 5446 states and 8930 transitions. [2023-12-19 22:08:05,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-19 22:08:05,270 INFO L276 IsEmpty]: Start isEmpty. Operand 5446 states and 8930 transitions. [2023-12-19 22:08:05,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-12-19 22:08:05,274 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:08:05,274 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:08:05,292 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-12-19 22:08:05,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:08:05,481 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:08:05,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:08:05,482 INFO L85 PathProgramCache]: Analyzing trace with hash 173723413, now seen corresponding path program 1 times [2023-12-19 22:08:05,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:08:05,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586544241] [2023-12-19 22:08:05,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:08:05,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:08:05,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:05,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:08:05,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:05,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:05,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:05,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:08:05,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:05,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 22:08:05,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:05,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-19 22:08:05,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:05,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:05,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:05,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:05,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:05,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:08:05,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:06,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:06,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:06,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 22:08:06,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:06,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 22:08:06,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:06,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 22:08:06,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:06,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 22:08:06,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:06,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 22:08:06,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:06,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-19 22:08:06,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:06,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-19 22:08:06,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:06,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-12-19 22:08:06,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:06,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:06,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:06,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-12-19 22:08:06,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:06,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-19 22:08:06,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:06,033 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 15 proven. 12 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2023-12-19 22:08:06,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:08:06,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586544241] [2023-12-19 22:08:06,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586544241] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:08:06,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [577110398] [2023-12-19 22:08:06,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:08:06,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:08:06,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:08:06,034 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 22:08:06,056 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-19 22:08:06,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:06,318 INFO L262 TraceCheckSpWp]: Trace formula consists of 1581 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 22:08:06,321 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:08:06,345 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-19 22:08:06,345 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 22:08:06,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [577110398] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:08:06,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 22:08:06,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2023-12-19 22:08:06,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397570745] [2023-12-19 22:08:06,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:08:06,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 22:08:06,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:08:06,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 22:08:06,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-12-19 22:08:06,346 INFO L87 Difference]: Start difference. First operand 5446 states and 8930 transitions. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-19 22:08:07,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:08:07,555 INFO L93 Difference]: Finished difference Result 11054 states and 18312 transitions. [2023-12-19 22:08:07,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 22:08:07,556 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 173 [2023-12-19 22:08:07,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:08:07,573 INFO L225 Difference]: With dead ends: 11054 [2023-12-19 22:08:07,574 INFO L226 Difference]: Without dead ends: 5680 [2023-12-19 22:08:07,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2023-12-19 22:08:07,587 INFO L413 NwaCegarLoop]: 766 mSDtfsCounter, 209 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 2274 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 22:08:07,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 2274 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 22:08:07,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5680 states. [2023-12-19 22:08:08,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5680 to 5680. [2023-12-19 22:08:08,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5680 states, 4389 states have (on average 1.6133515607199818) internal successors, (7081), 4541 states have internal predecessors, (7081), 977 states have call successors, (977), 261 states have call predecessors, (977), 313 states have return successors, (1310), 949 states have call predecessors, (1310), 969 states have call successors, (1310) [2023-12-19 22:08:08,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5680 states to 5680 states and 9368 transitions. [2023-12-19 22:08:08,599 INFO L78 Accepts]: Start accepts. Automaton has 5680 states and 9368 transitions. Word has length 173 [2023-12-19 22:08:08,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:08:08,599 INFO L495 AbstractCegarLoop]: Abstraction has 5680 states and 9368 transitions. [2023-12-19 22:08:08,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-19 22:08:08,599 INFO L276 IsEmpty]: Start isEmpty. Operand 5680 states and 9368 transitions. [2023-12-19 22:08:08,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-12-19 22:08:08,604 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:08:08,605 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:08:08,613 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-12-19 22:08:08,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:08:08,811 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:08:08,811 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:08:08,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1178154609, now seen corresponding path program 1 times [2023-12-19 22:08:08,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:08:08,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352826402] [2023-12-19 22:08:08,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:08:08,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:08:08,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:08:09,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:09,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:08:09,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 22:08:09,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-19 22:08:09,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:09,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:09,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:08:09,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:09,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 22:08:09,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 22:08:09,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 22:08:09,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 22:08:09,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-19 22:08:09,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 22:08:09,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-19 22:08:09,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-12-19 22:08:09,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:09,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-12-19 22:08:09,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-12-19 22:08:09,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,384 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 22 proven. 7 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2023-12-19 22:08:09,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:08:09,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352826402] [2023-12-19 22:08:09,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352826402] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:08:09,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1748035786] [2023-12-19 22:08:09,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:08:09,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:08:09,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:08:09,385 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 22:08:09,390 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-12-19 22:08:09,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,623 INFO L262 TraceCheckSpWp]: Trace formula consists of 1584 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 22:08:09,626 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:08:09,650 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-12-19 22:08:09,650 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 22:08:09,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1748035786] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:08:09,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 22:08:09,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2023-12-19 22:08:09,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559722801] [2023-12-19 22:08:09,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:08:09,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 22:08:09,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:08:09,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 22:08:09,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-12-19 22:08:09,651 INFO L87 Difference]: Start difference. First operand 5680 states and 9368 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-19 22:08:10,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:08:10,781 INFO L93 Difference]: Finished difference Result 11522 states and 19176 transitions. [2023-12-19 22:08:10,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 22:08:10,782 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 176 [2023-12-19 22:08:10,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:08:10,802 INFO L225 Difference]: With dead ends: 11522 [2023-12-19 22:08:10,803 INFO L226 Difference]: Without dead ends: 5914 [2023-12-19 22:08:10,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2023-12-19 22:08:10,818 INFO L413 NwaCegarLoop]: 766 mSDtfsCounter, 207 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 2274 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 22:08:10,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 2274 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 22:08:10,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5914 states. [2023-12-19 22:08:11,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5914 to 5914. [2023-12-19 22:08:11,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5914 states, 4617 states have (on average 1.628546675330301) internal successors, (7519), 4769 states have internal predecessors, (7519), 977 states have call successors, (977), 267 states have call predecessors, (977), 319 states have return successors, (1310), 949 states have call predecessors, (1310), 969 states have call successors, (1310) [2023-12-19 22:08:11,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5914 states to 5914 states and 9806 transitions. [2023-12-19 22:08:11,856 INFO L78 Accepts]: Start accepts. Automaton has 5914 states and 9806 transitions. Word has length 176 [2023-12-19 22:08:11,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:08:11,857 INFO L495 AbstractCegarLoop]: Abstraction has 5914 states and 9806 transitions. [2023-12-19 22:08:11,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-19 22:08:11,857 INFO L276 IsEmpty]: Start isEmpty. Operand 5914 states and 9806 transitions. [2023-12-19 22:08:11,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2023-12-19 22:08:11,862 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:08:11,862 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:08:11,870 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-12-19 22:08:12,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2023-12-19 22:08:12,068 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:08:12,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:08:12,068 INFO L85 PathProgramCache]: Analyzing trace with hash 385685727, now seen corresponding path program 1 times [2023-12-19 22:08:12,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:08:12,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96245997] [2023-12-19 22:08:12,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:08:12,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:08:12,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:12,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:08:12,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:12,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:12,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:12,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:08:12,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:12,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 22:08:12,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:12,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-19 22:08:12,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:12,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:12,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:12,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:12,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:12,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:08:12,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:12,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:12,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:12,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 22:08:12,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:12,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 22:08:12,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:12,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 22:08:12,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:12,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 22:08:12,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:12,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-19 22:08:12,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:12,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-19 22:08:12,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:12,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-19 22:08:12,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:12,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-12-19 22:08:12,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:12,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:12,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:12,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-19 22:08:12,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:12,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-19 22:08:12,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:12,672 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 15 proven. 11 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2023-12-19 22:08:12,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:08:12,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96245997] [2023-12-19 22:08:12,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96245997] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:08:12,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1323813833] [2023-12-19 22:08:12,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:08:12,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:08:12,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:08:12,674 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 22:08:12,678 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-12-19 22:08:12,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:12,931 INFO L262 TraceCheckSpWp]: Trace formula consists of 1580 conjuncts, 37 conjunts are in the unsatisfiable core [2023-12-19 22:08:12,934 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:08:13,113 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2023-12-19 22:08:13,113 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 22:08:13,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1323813833] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:08:13,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 22:08:13,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [14] total 21 [2023-12-19 22:08:13,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21272424] [2023-12-19 22:08:13,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:08:13,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 22:08:13,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:08:13,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 22:08:13,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2023-12-19 22:08:13,115 INFO L87 Difference]: Start difference. First operand 5914 states and 9806 transitions. Second operand has 9 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 4 states have call successors, (21), 4 states have call predecessors, (21), 6 states have return successors, (20), 6 states have call predecessors, (20), 4 states have call successors, (20) [2023-12-19 22:08:17,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:08:17,159 INFO L93 Difference]: Finished difference Result 18444 states and 31165 transitions. [2023-12-19 22:08:17,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-19 22:08:17,160 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 4 states have call successors, (21), 4 states have call predecessors, (21), 6 states have return successors, (20), 6 states have call predecessors, (20), 4 states have call successors, (20) Word has length 178 [2023-12-19 22:08:17,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:08:17,192 INFO L225 Difference]: With dead ends: 18444 [2023-12-19 22:08:17,192 INFO L226 Difference]: Without dead ends: 9818 [2023-12-19 22:08:17,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=105, Invalid=765, Unknown=0, NotChecked=0, Total=870 [2023-12-19 22:08:17,213 INFO L413 NwaCegarLoop]: 397 mSDtfsCounter, 1914 mSDsluCounter, 2009 mSDsCounter, 0 mSdLazyCounter, 3953 mSolverCounterSat, 459 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2012 SdHoareTripleChecker+Valid, 2406 SdHoareTripleChecker+Invalid, 4412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 459 IncrementalHoareTripleChecker+Valid, 3953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-19 22:08:17,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2012 Valid, 2406 Invalid, 4412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [459 Valid, 3953 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-19 22:08:17,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9818 states. [2023-12-19 22:08:18,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9818 to 9604. [2023-12-19 22:08:18,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9604 states, 7387 states have (on average 1.6262352781914173) internal successors, (12013), 7694 states have internal predecessors, (12013), 1652 states have call successors, (1652), 425 states have call predecessors, (1652), 564 states have return successors, (2292), 1624 states have call predecessors, (2292), 1644 states have call successors, (2292) [2023-12-19 22:08:18,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9604 states to 9604 states and 15957 transitions. [2023-12-19 22:08:18,808 INFO L78 Accepts]: Start accepts. Automaton has 9604 states and 15957 transitions. Word has length 178 [2023-12-19 22:08:18,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:08:18,809 INFO L495 AbstractCegarLoop]: Abstraction has 9604 states and 15957 transitions. [2023-12-19 22:08:18,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 4 states have call successors, (21), 4 states have call predecessors, (21), 6 states have return successors, (20), 6 states have call predecessors, (20), 4 states have call successors, (20) [2023-12-19 22:08:18,809 INFO L276 IsEmpty]: Start isEmpty. Operand 9604 states and 15957 transitions. [2023-12-19 22:08:18,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2023-12-19 22:08:18,820 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:08:18,820 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:08:18,828 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-12-19 22:08:19,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:08:19,026 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:08:19,026 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:08:19,026 INFO L85 PathProgramCache]: Analyzing trace with hash 72455887, now seen corresponding path program 1 times [2023-12-19 22:08:19,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:08:19,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585850841] [2023-12-19 22:08:19,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:08:19,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:08:19,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:19,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:08:19,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:19,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:19,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:19,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:08:19,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:19,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 22:08:19,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:19,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-19 22:08:19,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:19,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:19,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:19,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:19,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:19,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:08:19,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:19,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:19,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:19,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 22:08:19,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:19,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 22:08:19,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:19,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 22:08:19,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:19,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 22:08:19,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:19,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-19 22:08:19,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:19,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-19 22:08:19,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:19,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-19 22:08:19,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:19,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-12-19 22:08:19,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:19,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:19,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:19,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-19 22:08:19,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:19,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-19 22:08:19,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:19,405 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2023-12-19 22:08:19,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:08:19,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585850841] [2023-12-19 22:08:19,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585850841] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:08:19,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:08:19,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 22:08:19,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481949903] [2023-12-19 22:08:19,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:08:19,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 22:08:19,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:08:19,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 22:08:19,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-19 22:08:19,406 INFO L87 Difference]: Start difference. First operand 9604 states and 15957 transitions. Second operand has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (20), 5 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-19 22:08:25,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:08:25,574 INFO L93 Difference]: Finished difference Result 21834 states and 37126 transitions. [2023-12-19 22:08:25,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-19 22:08:25,575 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (20), 5 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 178 [2023-12-19 22:08:25,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:08:25,612 INFO L225 Difference]: With dead ends: 21834 [2023-12-19 22:08:25,613 INFO L226 Difference]: Without dead ends: 12174 [2023-12-19 22:08:25,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2023-12-19 22:08:25,632 INFO L413 NwaCegarLoop]: 319 mSDtfsCounter, 1483 mSDsluCounter, 836 mSDsCounter, 0 mSdLazyCounter, 2596 mSolverCounterSat, 358 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1607 SdHoareTripleChecker+Valid, 1155 SdHoareTripleChecker+Invalid, 2954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 358 IncrementalHoareTripleChecker+Valid, 2596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-19 22:08:25,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1607 Valid, 1155 Invalid, 2954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [358 Valid, 2596 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-12-19 22:08:25,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12174 states. [2023-12-19 22:08:27,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12174 to 9626. [2023-12-19 22:08:27,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9626 states, 7409 states have (on average 1.618572007018491) internal successors, (11992), 7716 states have internal predecessors, (11992), 1652 states have call successors, (1652), 425 states have call predecessors, (1652), 564 states have return successors, (2292), 1624 states have call predecessors, (2292), 1644 states have call successors, (2292) [2023-12-19 22:08:27,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9626 states to 9626 states and 15936 transitions. [2023-12-19 22:08:27,335 INFO L78 Accepts]: Start accepts. Automaton has 9626 states and 15936 transitions. Word has length 178 [2023-12-19 22:08:27,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:08:27,335 INFO L495 AbstractCegarLoop]: Abstraction has 9626 states and 15936 transitions. [2023-12-19 22:08:27,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (20), 5 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-19 22:08:27,335 INFO L276 IsEmpty]: Start isEmpty. Operand 9626 states and 15936 transitions. [2023-12-19 22:08:27,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2023-12-19 22:08:27,345 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:08:27,346 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:08:27,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-12-19 22:08:27,346 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:08:27,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:08:27,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1612959899, now seen corresponding path program 1 times [2023-12-19 22:08:27,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:08:27,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736281269] [2023-12-19 22:08:27,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:08:27,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:08:27,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:08:27,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:27,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:08:27,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-19 22:08:27,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-19 22:08:27,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:27,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:27,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:08:27,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:27,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 22:08:27,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 22:08:27,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 22:08:27,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 22:08:27,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-19 22:08:27,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-19 22:08:27,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-19 22:08:27,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-19 22:08:27,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:27,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-12-19 22:08:27,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-12-19 22:08:27,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,843 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2023-12-19 22:08:27,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:08:27,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736281269] [2023-12-19 22:08:27,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736281269] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:08:27,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:08:27,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-19 22:08:27,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259418467] [2023-12-19 22:08:27,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:08:27,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-19 22:08:27,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:08:27,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-19 22:08:27,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-19 22:08:27,845 INFO L87 Difference]: Start difference. First operand 9626 states and 15936 transitions. Second operand has 10 states, 9 states have (on average 12.11111111111111) internal successors, (109), 6 states have internal predecessors, (109), 3 states have call successors, (20), 5 states have call predecessors, (20), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-19 22:08:35,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:08:35,378 INFO L93 Difference]: Finished difference Result 21190 states and 36145 transitions. [2023-12-19 22:08:35,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-19 22:08:35,378 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 12.11111111111111) internal successors, (109), 6 states have internal predecessors, (109), 3 states have call successors, (20), 5 states have call predecessors, (20), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 184 [2023-12-19 22:08:35,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:08:35,424 INFO L225 Difference]: With dead ends: 21190 [2023-12-19 22:08:35,424 INFO L226 Difference]: Without dead ends: 11274 [2023-12-19 22:08:35,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=76, Invalid=266, Unknown=0, NotChecked=0, Total=342 [2023-12-19 22:08:35,450 INFO L413 NwaCegarLoop]: 313 mSDtfsCounter, 1329 mSDsluCounter, 1769 mSDsCounter, 0 mSdLazyCounter, 4666 mSolverCounterSat, 336 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1453 SdHoareTripleChecker+Valid, 2082 SdHoareTripleChecker+Invalid, 5002 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 336 IncrementalHoareTripleChecker+Valid, 4666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-12-19 22:08:35,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1453 Valid, 2082 Invalid, 5002 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [336 Valid, 4666 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-12-19 22:08:35,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11274 states. [2023-12-19 22:08:37,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11274 to 8848. [2023-12-19 22:08:37,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8848 states, 6866 states have (on average 1.6459364986891931) internal successors, (11301), 7148 states have internal predecessors, (11301), 1467 states have call successors, (1467), 401 states have call predecessors, (1467), 514 states have return successors, (1936), 1418 states have call predecessors, (1936), 1459 states have call successors, (1936) [2023-12-19 22:08:37,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8848 states to 8848 states and 14704 transitions. [2023-12-19 22:08:37,161 INFO L78 Accepts]: Start accepts. Automaton has 8848 states and 14704 transitions. Word has length 184 [2023-12-19 22:08:37,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:08:37,162 INFO L495 AbstractCegarLoop]: Abstraction has 8848 states and 14704 transitions. [2023-12-19 22:08:37,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 12.11111111111111) internal successors, (109), 6 states have internal predecessors, (109), 3 states have call successors, (20), 5 states have call predecessors, (20), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-19 22:08:37,162 INFO L276 IsEmpty]: Start isEmpty. Operand 8848 states and 14704 transitions. [2023-12-19 22:08:37,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 528 [2023-12-19 22:08:37,173 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:08:37,173 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 12, 10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:08:37,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-12-19 22:08:37,173 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:08:37,174 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:08:37,174 INFO L85 PathProgramCache]: Analyzing trace with hash 210928095, now seen corresponding path program 1 times [2023-12-19 22:08:37,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:08:37,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004399362] [2023-12-19 22:08:37,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:08:37,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:08:37,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:37,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:08:37,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:37,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:37,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:37,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:08:37,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:37,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-19 22:08:37,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:37,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:37,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:38,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:08:38,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:38,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:38,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:38,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:38,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:38,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:08:38,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:38,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:38,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:38,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 22:08:38,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:38,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 22:08:38,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:38,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 22:08:38,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:38,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 22:08:38,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:38,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-19 22:08:38,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:38,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-19 22:08:38,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:38,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-19 22:08:38,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:38,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-19 22:08:38,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:38,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:38,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:38,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-19 22:08:38,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:38,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:38,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:38,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:08:38,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:38,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:38,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:38,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:38,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:38,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:08:38,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:38,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:38,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:38,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 22:08:38,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:38,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 22:08:38,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:38,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 22:08:38,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:38,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 22:08:38,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:38,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-19 22:08:38,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:38,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-19 22:08:38,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:38,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-19 22:08:38,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:38,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-19 22:08:38,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:38,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:38,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:38,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2023-12-19 22:08:38,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:38,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:38,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:38,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:08:38,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:38,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:38,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:38,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:38,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:38,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:08:38,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:38,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:38,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:38,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-19 22:08:38,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:38,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-19 22:08:38,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:38,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-19 22:08:38,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:38,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-19 22:08:38,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:38,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-19 22:08:38,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:38,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-19 22:08:38,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:38,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 22:08:38,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:38,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-19 22:08:38,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:38,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-19 22:08:38,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:38,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-19 22:08:38,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:38,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-12-19 22:08:38,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:38,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:38,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:38,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 464 [2023-12-19 22:08:38,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:38,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:38,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:38,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:08:38,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:38,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 494 [2023-12-19 22:08:38,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:38,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 501 [2023-12-19 22:08:38,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:38,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:38,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:38,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 516 [2023-12-19 22:08:38,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:38,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 521 [2023-12-19 22:08:38,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:38,436 INFO L134 CoverageAnalysis]: Checked inductivity of 1397 backedges. 83 proven. 150 refuted. 0 times theorem prover too weak. 1164 trivial. 0 not checked. [2023-12-19 22:08:38,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:08:38,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004399362] [2023-12-19 22:08:38,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004399362] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:08:38,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [124094943] [2023-12-19 22:08:38,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:08:38,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:08:38,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:08:38,437 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 22:08:38,439 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-12-19 22:08:39,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:39,038 INFO L262 TraceCheckSpWp]: Trace formula consists of 4058 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-19 22:08:39,058 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:08:39,098 INFO L134 CoverageAnalysis]: Checked inductivity of 1397 backedges. 653 proven. 0 refuted. 0 times theorem prover too weak. 744 trivial. 0 not checked. [2023-12-19 22:08:39,099 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 22:08:39,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [124094943] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:08:39,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 22:08:39,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [18] total 19 [2023-12-19 22:08:39,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867326237] [2023-12-19 22:08:39,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:08:39,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 22:08:39,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:08:39,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 22:08:39,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2023-12-19 22:08:39,101 INFO L87 Difference]: Start difference. First operand 8848 states and 14704 transitions. Second operand has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 3 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2023-12-19 22:08:41,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:08:41,630 INFO L93 Difference]: Finished difference Result 18234 states and 30722 transitions. [2023-12-19 22:08:41,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 22:08:41,631 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 3 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) Word has length 527 [2023-12-19 22:08:41,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:08:41,670 INFO L225 Difference]: With dead ends: 18234 [2023-12-19 22:08:41,670 INFO L226 Difference]: Without dead ends: 13541 [2023-12-19 22:08:41,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 667 GetRequests, 650 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2023-12-19 22:08:41,685 INFO L413 NwaCegarLoop]: 834 mSDtfsCounter, 836 mSDsluCounter, 772 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 836 SdHoareTripleChecker+Valid, 1606 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 22:08:41,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [836 Valid, 1606 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 22:08:41,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13541 states. [2023-12-19 22:08:44,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13541 to 13539. [2023-12-19 22:08:44,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13539 states, 10447 states have (on average 1.6446826840241218) internal successors, (17182), 10904 states have internal predecessors, (17182), 2307 states have call successors, (2307), 610 states have call predecessors, (2307), 784 states have return successors, (3218), 2264 states have call predecessors, (3218), 2295 states have call successors, (3218) [2023-12-19 22:08:44,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13539 states to 13539 states and 22707 transitions. [2023-12-19 22:08:44,176 INFO L78 Accepts]: Start accepts. Automaton has 13539 states and 22707 transitions. Word has length 527 [2023-12-19 22:08:44,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:08:44,176 INFO L495 AbstractCegarLoop]: Abstraction has 13539 states and 22707 transitions. [2023-12-19 22:08:44,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 3 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2023-12-19 22:08:44,176 INFO L276 IsEmpty]: Start isEmpty. Operand 13539 states and 22707 transitions. [2023-12-19 22:08:44,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 529 [2023-12-19 22:08:44,187 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:08:44,187 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 12, 10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:08:44,198 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-12-19 22:08:44,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:08:44,397 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:08:44,397 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:08:44,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1926855370, now seen corresponding path program 1 times [2023-12-19 22:08:44,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:08:44,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576566537] [2023-12-19 22:08:44,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:08:44,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:08:44,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:44,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:08:44,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:44,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:44,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:44,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:08:44,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:45,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-19 22:08:45,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:45,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:45,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:45,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:08:45,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:45,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:45,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:45,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:45,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:45,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:08:45,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:45,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:45,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:45,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 22:08:45,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:45,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 22:08:45,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:45,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 22:08:45,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:45,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 22:08:45,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:45,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-19 22:08:45,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:45,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-19 22:08:45,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:45,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-19 22:08:45,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:45,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-19 22:08:45,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:45,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:45,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:45,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-19 22:08:45,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:45,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:45,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:45,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:08:45,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:45,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:45,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:45,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:45,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:45,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:08:45,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:45,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:45,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:45,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 22:08:45,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:45,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 22:08:45,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:45,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 22:08:45,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:45,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 22:08:45,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:45,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-19 22:08:45,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:45,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-19 22:08:45,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:45,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-19 22:08:45,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:45,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-19 22:08:45,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:45,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:45,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:45,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2023-12-19 22:08:45,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:45,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:45,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:45,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:08:45,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:45,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:45,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:45,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:45,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:45,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:08:45,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:45,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:45,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:45,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-19 22:08:45,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:45,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-19 22:08:45,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:45,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-19 22:08:45,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:45,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-19 22:08:45,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:45,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 22:08:45,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:45,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-19 22:08:45,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:45,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-19 22:08:45,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:45,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 22:08:45,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:45,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 22:08:45,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:45,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-12-19 22:08:45,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:45,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-12-19 22:08:45,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:45,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:45,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:45,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 465 [2023-12-19 22:08:45,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:45,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:45,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:45,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:08:45,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:45,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2023-12-19 22:08:45,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:45,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 502 [2023-12-19 22:08:45,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:45,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:45,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:45,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 517 [2023-12-19 22:08:45,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:45,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 522 [2023-12-19 22:08:45,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:45,613 INFO L134 CoverageAnalysis]: Checked inductivity of 1397 backedges. 83 proven. 150 refuted. 0 times theorem prover too weak. 1164 trivial. 0 not checked. [2023-12-19 22:08:45,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:08:45,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576566537] [2023-12-19 22:08:45,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576566537] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:08:45,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1878827076] [2023-12-19 22:08:45,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:08:45,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:08:45,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:08:45,615 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 22:08:45,618 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-12-19 22:08:46,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:46,296 INFO L262 TraceCheckSpWp]: Trace formula consists of 4059 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 22:08:46,302 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:08:46,335 INFO L134 CoverageAnalysis]: Checked inductivity of 1397 backedges. 653 proven. 0 refuted. 0 times theorem prover too weak. 744 trivial. 0 not checked. [2023-12-19 22:08:46,335 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 22:08:46,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1878827076] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:08:46,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 22:08:46,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [18] total 20 [2023-12-19 22:08:46,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485743758] [2023-12-19 22:08:46,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:08:46,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 22:08:46,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:08:46,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 22:08:46,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2023-12-19 22:08:46,336 INFO L87 Difference]: Start difference. First operand 13539 states and 22707 transitions. Second operand has 4 states, 4 states have (on average 50.25) internal successors, (201), 4 states have internal predecessors, (201), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2023-12-19 22:08:48,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:08:48,951 INFO L93 Difference]: Finished difference Result 27147 states and 46061 transitions. [2023-12-19 22:08:48,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 22:08:48,951 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 50.25) internal successors, (201), 4 states have internal predecessors, (201), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 528 [2023-12-19 22:08:48,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:08:48,996 INFO L225 Difference]: With dead ends: 27147 [2023-12-19 22:08:48,996 INFO L226 Difference]: Without dead ends: 13674 [2023-12-19 22:08:49,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 669 GetRequests, 650 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2023-12-19 22:08:49,033 INFO L413 NwaCegarLoop]: 795 mSDtfsCounter, 38 mSDsluCounter, 1565 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 2360 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 22:08:49,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 2360 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 22:08:49,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13674 states. [2023-12-19 22:08:51,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13674 to 13674. [2023-12-19 22:08:51,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13674 states, 10567 states have (on average 1.6458786789060282) internal successors, (17392), 11024 states have internal predecessors, (17392), 2307 states have call successors, (2307), 625 states have call predecessors, (2307), 799 states have return successors, (3218), 2264 states have call predecessors, (3218), 2295 states have call successors, (3218) [2023-12-19 22:08:51,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13674 states to 13674 states and 22917 transitions. [2023-12-19 22:08:51,687 INFO L78 Accepts]: Start accepts. Automaton has 13674 states and 22917 transitions. Word has length 528 [2023-12-19 22:08:51,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:08:51,688 INFO L495 AbstractCegarLoop]: Abstraction has 13674 states and 22917 transitions. [2023-12-19 22:08:51,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.25) internal successors, (201), 4 states have internal predecessors, (201), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2023-12-19 22:08:51,688 INFO L276 IsEmpty]: Start isEmpty. Operand 13674 states and 22917 transitions. [2023-12-19 22:08:51,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 530 [2023-12-19 22:08:51,698 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:08:51,699 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 12, 10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:08:51,709 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-12-19 22:08:51,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2023-12-19 22:08:51,909 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:08:51,909 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:08:51,909 INFO L85 PathProgramCache]: Analyzing trace with hash -631546840, now seen corresponding path program 1 times [2023-12-19 22:08:51,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:08:51,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519708875] [2023-12-19 22:08:51,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:08:51,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:08:51,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:52,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:08:52,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:52,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:52,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:52,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:08:52,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:52,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-19 22:08:52,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:52,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:52,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:52,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:08:52,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:52,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:52,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:52,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:52,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:52,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:08:52,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:52,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:52,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:52,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 22:08:52,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:52,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 22:08:52,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:52,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 22:08:52,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:52,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 22:08:52,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:52,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-19 22:08:52,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:52,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-19 22:08:52,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:52,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-19 22:08:52,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:52,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-19 22:08:52,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:52,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:52,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:52,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-19 22:08:52,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:52,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:52,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:52,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:08:52,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:52,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:52,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:52,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:52,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:52,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:08:52,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:52,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:52,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:52,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 22:08:52,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:52,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 22:08:52,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:52,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 22:08:52,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:52,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 22:08:52,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:52,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-19 22:08:52,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:52,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-19 22:08:52,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:52,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-19 22:08:52,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:52,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-19 22:08:52,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:52,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:52,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:52,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2023-12-19 22:08:52,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:53,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:53,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:53,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:08:53,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:53,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:53,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:53,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:53,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:53,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:08:53,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:53,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:53,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:53,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-19 22:08:53,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:53,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-19 22:08:53,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:53,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-19 22:08:53,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:53,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-19 22:08:53,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:53,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-19 22:08:53,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:53,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-19 22:08:53,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:53,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-19 22:08:53,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:53,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-19 22:08:53,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:53,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-19 22:08:53,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:53,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-19 22:08:53,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:53,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-19 22:08:53,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:53,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:53,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:53,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2023-12-19 22:08:53,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:53,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:53,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:53,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:08:53,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:53,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 496 [2023-12-19 22:08:53,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:53,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2023-12-19 22:08:53,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:53,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:53,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:53,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 518 [2023-12-19 22:08:53,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:53,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 523 [2023-12-19 22:08:53,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:53,177 INFO L134 CoverageAnalysis]: Checked inductivity of 1397 backedges. 85 proven. 149 refuted. 0 times theorem prover too weak. 1163 trivial. 0 not checked. [2023-12-19 22:08:53,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:08:53,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519708875] [2023-12-19 22:08:53,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519708875] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:08:53,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1588330795] [2023-12-19 22:08:53,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:08:53,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:08:53,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:08:53,180 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 22:08:53,216 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-12-19 22:08:53,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:53,787 INFO L262 TraceCheckSpWp]: Trace formula consists of 4060 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 22:08:53,793 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:08:53,866 INFO L134 CoverageAnalysis]: Checked inductivity of 1397 backedges. 655 proven. 0 refuted. 0 times theorem prover too weak. 742 trivial. 0 not checked. [2023-12-19 22:08:53,866 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 22:08:53,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1588330795] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:08:53,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 22:08:53,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [18] total 20 [2023-12-19 22:08:53,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317967554] [2023-12-19 22:08:53,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:08:53,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 22:08:53,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:08:53,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 22:08:53,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2023-12-19 22:08:53,869 INFO L87 Difference]: Start difference. First operand 13674 states and 22917 transitions. Second operand has 4 states, 4 states have (on average 50.75) internal successors, (203), 4 states have internal predecessors, (203), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2023-12-19 22:08:56,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:08:56,455 INFO L93 Difference]: Finished difference Result 27417 states and 46421 transitions. [2023-12-19 22:08:56,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 22:08:56,456 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 50.75) internal successors, (203), 4 states have internal predecessors, (203), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 529 [2023-12-19 22:08:56,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:08:56,508 INFO L225 Difference]: With dead ends: 27417 [2023-12-19 22:08:56,508 INFO L226 Difference]: Without dead ends: 13809 [2023-12-19 22:08:56,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 667 GetRequests, 648 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2023-12-19 22:08:56,550 INFO L413 NwaCegarLoop]: 795 mSDtfsCounter, 36 mSDsluCounter, 1565 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 2360 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 22:08:56,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 2360 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 22:08:56,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13809 states. [2023-12-19 22:08:59,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13809 to 13809. [2023-12-19 22:08:59,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13809 states, 10687 states have (on average 1.647047815102461) internal successors, (17602), 11144 states have internal predecessors, (17602), 2307 states have call successors, (2307), 640 states have call predecessors, (2307), 814 states have return successors, (3218), 2264 states have call predecessors, (3218), 2295 states have call successors, (3218) [2023-12-19 22:08:59,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13809 states to 13809 states and 23127 transitions. [2023-12-19 22:08:59,121 INFO L78 Accepts]: Start accepts. Automaton has 13809 states and 23127 transitions. Word has length 529 [2023-12-19 22:08:59,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:08:59,122 INFO L495 AbstractCegarLoop]: Abstraction has 13809 states and 23127 transitions. [2023-12-19 22:08:59,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.75) internal successors, (203), 4 states have internal predecessors, (203), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2023-12-19 22:08:59,122 INFO L276 IsEmpty]: Start isEmpty. Operand 13809 states and 23127 transitions. [2023-12-19 22:08:59,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 530 [2023-12-19 22:08:59,139 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:08:59,145 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 12, 10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:08:59,157 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-12-19 22:08:59,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2023-12-19 22:08:59,355 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:08:59,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:08:59,355 INFO L85 PathProgramCache]: Analyzing trace with hash 617763810, now seen corresponding path program 1 times [2023-12-19 22:08:59,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:08:59,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974862422] [2023-12-19 22:08:59,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:08:59,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:08:59,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:59,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:08:59,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:59,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:59,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:59,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:08:59,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:59,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-19 22:08:59,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:59,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:59,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:00,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:09:00,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:00,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:09:00,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:00,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:09:00,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:00,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:09:00,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:00,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:09:00,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:00,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 22:09:00,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:00,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 22:09:00,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:00,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 22:09:00,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:00,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 22:09:00,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:00,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-19 22:09:00,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:00,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-19 22:09:00,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:00,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-19 22:09:00,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:00,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-19 22:09:00,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:00,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:09:00,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:00,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-19 22:09:00,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:00,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:09:00,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:00,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:09:00,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:00,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:09:00,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:00,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:09:00,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:00,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:09:00,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:00,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:09:00,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:00,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 22:09:00,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:00,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 22:09:00,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:00,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 22:09:00,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:00,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 22:09:00,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:00,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-19 22:09:00,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:00,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-19 22:09:00,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:00,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-19 22:09:00,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:00,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-19 22:09:00,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:00,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:09:00,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:00,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2023-12-19 22:09:00,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:00,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:09:00,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:00,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:09:00,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:00,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:09:00,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:00,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:09:00,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:00,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:09:00,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:00,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:09:00,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:00,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 22:09:00,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:00,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 22:09:00,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:00,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-19 22:09:00,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:00,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-19 22:09:00,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:00,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-19 22:09:00,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:00,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-19 22:09:00,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:00,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-19 22:09:00,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:00,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-19 22:09:00,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:00,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-19 22:09:00,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:00,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-19 22:09:00,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:00,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-19 22:09:00,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:00,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:09:00,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:00,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2023-12-19 22:09:00,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:00,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:09:00,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:00,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:09:00,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:00,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 496 [2023-12-19 22:09:00,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:00,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2023-12-19 22:09:00,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:00,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:09:00,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:00,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 518 [2023-12-19 22:09:00,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:00,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 523 [2023-12-19 22:09:00,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:00,437 INFO L134 CoverageAnalysis]: Checked inductivity of 1397 backedges. 87 proven. 148 refuted. 0 times theorem prover too weak. 1162 trivial. 0 not checked. [2023-12-19 22:09:00,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:09:00,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974862422] [2023-12-19 22:09:00,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974862422] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:09:00,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [124560270] [2023-12-19 22:09:00,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:09:00,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:09:00,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:09:00,438 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 22:09:00,441 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-12-19 22:09:00,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:00,980 INFO L262 TraceCheckSpWp]: Trace formula consists of 4060 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-19 22:09:00,987 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:09:01,304 INFO L134 CoverageAnalysis]: Checked inductivity of 1397 backedges. 737 proven. 261 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2023-12-19 22:09:01,305 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 22:09:01,872 INFO L134 CoverageAnalysis]: Checked inductivity of 1397 backedges. 129 proven. 35 refuted. 0 times theorem prover too weak. 1233 trivial. 0 not checked. [2023-12-19 22:09:01,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [124560270] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 22:09:01,872 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-19 22:09:01,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 6, 5] total 24 [2023-12-19 22:09:01,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319916092] [2023-12-19 22:09:01,873 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-19 22:09:01,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-19 22:09:01,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:09:01,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-19 22:09:01,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=476, Unknown=0, NotChecked=0, Total=552 [2023-12-19 22:09:01,875 INFO L87 Difference]: Start difference. First operand 13809 states and 23127 transitions. Second operand has 24 states, 24 states have (on average 18.041666666666668) internal successors, (433), 19 states have internal predecessors, (433), 11 states have call successors, (111), 11 states have call predecessors, (111), 11 states have return successors, (109), 13 states have call predecessors, (109), 11 states have call successors, (109) [2023-12-19 22:10:21,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:10:21,758 INFO L93 Difference]: Finished difference Result 129116 states and 278164 transitions. [2023-12-19 22:10:21,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2023-12-19 22:10:21,759 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 18.041666666666668) internal successors, (433), 19 states have internal predecessors, (433), 11 states have call successors, (111), 11 states have call predecessors, (111), 11 states have return successors, (109), 13 states have call predecessors, (109), 11 states have call successors, (109) Word has length 529 [2023-12-19 22:10:21,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:10:22,935 INFO L225 Difference]: With dead ends: 129116 [2023-12-19 22:10:22,935 INFO L226 Difference]: Without dead ends: 111426 [2023-12-19 22:10:23,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1420 GetRequests, 1269 SyntacticMatches, 1 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8782 ImplicationChecksByTransitivity, 13.5s TimeCoverageRelationStatistics Valid=3257, Invalid=19695, Unknown=0, NotChecked=0, Total=22952 [2023-12-19 22:10:23,172 INFO L413 NwaCegarLoop]: 779 mSDtfsCounter, 24133 mSDsluCounter, 8784 mSDsCounter, 0 mSdLazyCounter, 25208 mSolverCounterSat, 14534 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24133 SdHoareTripleChecker+Valid, 9563 SdHoareTripleChecker+Invalid, 39742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 14534 IncrementalHoareTripleChecker+Valid, 25208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.1s IncrementalHoareTripleChecker+Time [2023-12-19 22:10:23,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24133 Valid, 9563 Invalid, 39742 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [14534 Valid, 25208 Invalid, 0 Unknown, 0 Unchecked, 28.1s Time] [2023-12-19 22:10:23,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111426 states. [2023-12-19 22:10:38,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111426 to 48431. [2023-12-19 22:10:38,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48431 states, 34944 states have (on average 1.5800709706959708) internal successors, (55214), 37101 states have internal predecessors, (55214), 10852 states have call successors, (10852), 1973 states have call predecessors, (10852), 2634 states have return successors, (15899), 10906 states have call predecessors, (15899), 10822 states have call successors, (15899) [2023-12-19 22:10:38,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48431 states to 48431 states and 81965 transitions. [2023-12-19 22:10:38,958 INFO L78 Accepts]: Start accepts. Automaton has 48431 states and 81965 transitions. Word has length 529 [2023-12-19 22:10:38,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:10:38,958 INFO L495 AbstractCegarLoop]: Abstraction has 48431 states and 81965 transitions. [2023-12-19 22:10:38,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 18.041666666666668) internal successors, (433), 19 states have internal predecessors, (433), 11 states have call successors, (111), 11 states have call predecessors, (111), 11 states have return successors, (109), 13 states have call predecessors, (109), 11 states have call successors, (109) [2023-12-19 22:10:38,958 INFO L276 IsEmpty]: Start isEmpty. Operand 48431 states and 81965 transitions. [2023-12-19 22:10:38,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 531 [2023-12-19 22:10:38,978 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:10:38,978 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 15, 12, 10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:10:38,996 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-12-19 22:10:39,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2023-12-19 22:10:39,188 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:10:39,188 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:10:39,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1000263732, now seen corresponding path program 1 times [2023-12-19 22:10:39,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:10:39,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16503695] [2023-12-19 22:10:39,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:10:39,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:10:39,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:10:39,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:10:39,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:10:39,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:10:39,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:10:39,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:10:39,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:10:39,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-19 22:10:39,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:10:39,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:10:39,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:10:40,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:10:40,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:10:40,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:10:40,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:10:40,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:10:40,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:10:40,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:10:40,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:10:40,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:10:40,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:10:40,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 22:10:40,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:10:40,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 22:10:40,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:10:40,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 22:10:40,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:10:40,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 22:10:40,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:10:40,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-19 22:10:40,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:10:40,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-19 22:10:40,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:10:40,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-19 22:10:40,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:10:40,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-19 22:10:40,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:10:40,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:10:40,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:10:40,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-19 22:10:40,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:10:40,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:10:40,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:10:40,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:10:40,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:10:40,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:10:40,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:10:40,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:10:40,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:10:40,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:10:40,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:10:40,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:10:40,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:10:40,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 22:10:40,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:10:40,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 22:10:40,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:10:40,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 22:10:40,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:10:40,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 22:10:40,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:10:40,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-19 22:10:40,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:10:40,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-19 22:10:40,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:10:40,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-19 22:10:40,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:10:40,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-19 22:10:40,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:10:40,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:10:40,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:10:40,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2023-12-19 22:10:40,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:10:40,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:10:40,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:10:40,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:10:40,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:10:40,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:10:40,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:10:40,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:10:40,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:10:40,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:10:40,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:10:40,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:10:40,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:10:40,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 22:10:40,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:10:40,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 22:10:40,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:10:40,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-19 22:10:40,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:10:40,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 22:10:40,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:10:40,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-19 22:10:40,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:10:40,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-19 22:10:40,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:10:40,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-19 22:10:40,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:10:40,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-19 22:10:40,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:10:40,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-19 22:10:40,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:10:40,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-19 22:10:40,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:10:40,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-12-19 22:10:40,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:10:40,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:10:40,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:10:40,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 467 [2023-12-19 22:10:40,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:10:40,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:10:40,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:10:40,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:10:40,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:10:40,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 497 [2023-12-19 22:10:40,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:10:40,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2023-12-19 22:10:40,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:10:40,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:10:40,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:10:40,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2023-12-19 22:10:40,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:10:40,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 524 [2023-12-19 22:10:40,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:10:40,244 INFO L134 CoverageAnalysis]: Checked inductivity of 1577 backedges. 53 proven. 111 refuted. 0 times theorem prover too weak. 1413 trivial. 0 not checked. [2023-12-19 22:10:40,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:10:40,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16503695] [2023-12-19 22:10:40,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16503695] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:10:40,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [162938019] [2023-12-19 22:10:40,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:10:40,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:10:40,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:10:40,246 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 22:10:40,250 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-12-19 22:10:40,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:10:40,845 INFO L262 TraceCheckSpWp]: Trace formula consists of 4070 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-19 22:10:40,851 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:10:40,869 INFO L134 CoverageAnalysis]: Checked inductivity of 1577 backedges. 737 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2023-12-19 22:10:40,869 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 22:10:40,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [162938019] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:10:40,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 22:10:40,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2023-12-19 22:10:40,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383698797] [2023-12-19 22:10:40,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:10:40,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 22:10:40,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:10:40,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 22:10:40,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2023-12-19 22:10:40,870 INFO L87 Difference]: Start difference. First operand 48431 states and 81965 transitions. Second operand has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 2 states have call successors, (39) [2023-12-19 22:11:05,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:11:05,292 INFO L93 Difference]: Finished difference Result 131687 states and 231987 transitions. [2023-12-19 22:11:05,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 22:11:05,292 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 2 states have call successors, (39) Word has length 530 [2023-12-19 22:11:05,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:11:06,181 INFO L225 Difference]: With dead ends: 131687 [2023-12-19 22:11:06,181 INFO L226 Difference]: Without dead ends: 90059 [2023-12-19 22:11:06,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 660 GetRequests, 649 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2023-12-19 22:11:06,492 INFO L413 NwaCegarLoop]: 1523 mSDtfsCounter, 790 mSDsluCounter, 826 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 790 SdHoareTripleChecker+Valid, 2349 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 22:11:06,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [790 Valid, 2349 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 22:11:06,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90059 states. [2023-12-19 22:11:30,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90059 to 90057. [2023-12-19 22:11:30,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90057 states, 64598 states have (on average 1.5748784792098827) internal successors, (101734), 68725 states have internal predecessors, (101734), 20612 states have call successors, (20612), 3581 states have call predecessors, (20612), 4846 states have return successors, (35839), 20850 states have call predecessors, (35839), 20558 states have call successors, (35839) [2023-12-19 22:11:32,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90057 states to 90057 states and 158185 transitions. [2023-12-19 22:11:32,129 INFO L78 Accepts]: Start accepts. Automaton has 90057 states and 158185 transitions. Word has length 530 [2023-12-19 22:11:32,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:11:32,130 INFO L495 AbstractCegarLoop]: Abstraction has 90057 states and 158185 transitions. [2023-12-19 22:11:32,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 2 states have call successors, (39) [2023-12-19 22:11:32,130 INFO L276 IsEmpty]: Start isEmpty. Operand 90057 states and 158185 transitions. [2023-12-19 22:11:32,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 532 [2023-12-19 22:11:32,161 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:11:32,161 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 15, 12, 10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:11:32,170 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-12-19 22:11:32,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2023-12-19 22:11:32,371 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:11:32,371 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:11:32,371 INFO L85 PathProgramCache]: Analyzing trace with hash -698659512, now seen corresponding path program 1 times [2023-12-19 22:11:32,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:11:32,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567294463] [2023-12-19 22:11:32,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:11:32,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:11:32,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:11:32,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:11:32,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:11:32,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:11:32,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:11:32,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:11:32,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:11:33,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-19 22:11:33,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:11:33,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:11:33,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:11:33,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:11:33,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:11:33,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:11:33,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:11:33,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:11:33,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:11:33,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:11:33,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:11:33,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:11:33,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:11:33,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 22:11:33,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:11:33,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 22:11:33,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:11:33,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 22:11:33,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:11:33,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 22:11:33,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:11:33,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-19 22:11:33,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:11:33,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-19 22:11:33,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:11:33,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-19 22:11:33,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:11:33,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-19 22:11:33,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:11:33,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:11:33,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:11:33,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-19 22:11:33,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:11:33,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:11:33,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:11:33,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:11:33,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:11:33,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:11:33,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:11:33,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:11:33,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:11:33,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:11:33,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:11:33,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:11:33,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:11:33,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 22:11:33,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:11:33,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 22:11:33,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:11:33,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 22:11:33,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:11:33,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 22:11:33,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:11:33,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-19 22:11:33,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:11:33,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-19 22:11:33,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:11:33,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-19 22:11:33,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:11:33,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-19 22:11:33,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:11:33,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:11:33,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:11:33,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2023-12-19 22:11:33,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:11:33,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:11:33,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:11:33,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:11:33,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:11:33,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:11:33,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:11:33,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:11:33,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:11:33,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:11:33,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:11:33,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:11:33,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:11:33,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-19 22:11:33,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:11:33,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-19 22:11:33,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:11:33,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-19 22:11:33,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:11:33,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-19 22:11:33,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:11:33,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-19 22:11:33,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:11:33,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 22:11:33,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:11:33,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-19 22:11:33,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:11:33,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-19 22:11:33,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:11:33,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-19 22:11:33,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:11:33,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-19 22:11:33,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:11:33,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-12-19 22:11:33,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:11:33,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:11:33,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:11:33,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 468 [2023-12-19 22:11:33,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:11:33,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:11:33,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:11:33,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:11:33,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:11:33,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 498 [2023-12-19 22:11:33,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:11:33,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 505 [2023-12-19 22:11:33,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:11:33,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:11:33,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:11:33,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 520 [2023-12-19 22:11:33,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:11:33,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 525 [2023-12-19 22:11:33,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:11:33,471 INFO L134 CoverageAnalysis]: Checked inductivity of 1577 backedges. 53 proven. 111 refuted. 0 times theorem prover too weak. 1413 trivial. 0 not checked. [2023-12-19 22:11:33,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:11:33,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567294463] [2023-12-19 22:11:33,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567294463] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:11:33,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [341594543] [2023-12-19 22:11:33,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:11:33,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:11:33,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:11:33,472 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 22:11:33,474 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-12-19 22:11:34,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:11:34,048 INFO L262 TraceCheckSpWp]: Trace formula consists of 4071 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 22:11:34,054 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:11:34,091 INFO L134 CoverageAnalysis]: Checked inductivity of 1577 backedges. 721 proven. 0 refuted. 0 times theorem prover too weak. 856 trivial. 0 not checked. [2023-12-19 22:11:34,091 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 22:11:34,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [341594543] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:11:34,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 22:11:34,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2023-12-19 22:11:34,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059704956] [2023-12-19 22:11:34,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:11:34,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 22:11:34,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:11:34,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 22:11:34,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2023-12-19 22:11:34,093 INFO L87 Difference]: Start difference. First operand 90057 states and 158185 transitions. Second operand has 4 states, 4 states have (on average 51.75) internal successors, (207), 4 states have internal predecessors, (207), 2 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2023-12-19 22:12:02,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:12:02,716 INFO L93 Difference]: Finished difference Result 182298 states and 326808 transitions. [2023-12-19 22:12:02,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 22:12:02,717 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 51.75) internal successors, (207), 4 states have internal predecessors, (207), 2 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 531 [2023-12-19 22:12:02,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:12:03,447 INFO L225 Difference]: With dead ends: 182298 [2023-12-19 22:12:03,447 INFO L226 Difference]: Without dead ends: 92307 [2023-12-19 22:12:03,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 663 GetRequests, 650 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2023-12-19 22:12:03,945 INFO L413 NwaCegarLoop]: 753 mSDtfsCounter, 205 mSDsluCounter, 1482 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 2235 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 22:12:03,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 2235 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 22:12:04,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92307 states. [2023-12-19 22:12:28,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92307 to 92307. [2023-12-19 22:12:28,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92307 states, 66758 states have (on average 1.5839150364001318) internal successors, (105739), 70885 states have internal predecessors, (105739), 20612 states have call successors, (20612), 3671 states have call predecessors, (20612), 4936 states have return successors, (35839), 20850 states have call predecessors, (35839), 20558 states have call successors, (35839) [2023-12-19 22:12:29,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92307 states to 92307 states and 162190 transitions. [2023-12-19 22:12:29,504 INFO L78 Accepts]: Start accepts. Automaton has 92307 states and 162190 transitions. Word has length 531 [2023-12-19 22:12:29,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:12:29,504 INFO L495 AbstractCegarLoop]: Abstraction has 92307 states and 162190 transitions. [2023-12-19 22:12:29,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 51.75) internal successors, (207), 4 states have internal predecessors, (207), 2 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2023-12-19 22:12:29,505 INFO L276 IsEmpty]: Start isEmpty. Operand 92307 states and 162190 transitions. [2023-12-19 22:12:29,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 535 [2023-12-19 22:12:29,539 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:12:29,552 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 15, 12, 10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:12:29,563 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-12-19 22:12:29,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2023-12-19 22:12:29,753 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:12:29,753 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:12:29,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1663908896, now seen corresponding path program 1 times [2023-12-19 22:12:29,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:12:29,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015431706] [2023-12-19 22:12:29,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:12:29,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:12:29,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:12:30,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:12:30,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:12:30,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:12:30,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:12:30,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:12:30,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:12:30,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-19 22:12:30,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:12:30,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:12:30,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:12:30,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:12:30,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:12:30,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:12:30,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:12:30,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:12:30,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:12:30,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:12:30,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:12:30,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:12:30,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:12:30,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 22:12:30,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:12:30,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 22:12:30,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:12:30,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 22:12:30,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:12:30,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 22:12:30,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:12:30,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-19 22:12:30,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:12:30,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-19 22:12:30,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:12:30,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-19 22:12:30,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:12:30,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-19 22:12:30,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:12:30,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:12:30,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:12:30,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-12-19 22:12:30,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:12:30,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:12:30,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:12:30,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:12:31,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:12:31,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:12:31,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:12:31,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:12:31,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:12:31,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:12:31,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:12:31,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:12:31,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:12:31,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 22:12:31,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:12:31,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 22:12:31,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:12:31,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 22:12:31,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:12:31,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 22:12:31,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:12:31,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-19 22:12:31,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:12:31,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-19 22:12:31,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:12:31,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-19 22:12:31,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:12:31,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-19 22:12:31,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:12:31,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:12:31,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:12:31,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2023-12-19 22:12:31,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:12:31,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:12:31,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:12:31,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:12:31,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:12:31,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:12:31,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:12:31,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:12:31,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:12:31,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:12:31,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:12:31,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:12:31,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:12:31,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-19 22:12:31,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:12:31,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-19 22:12:31,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:12:31,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-19 22:12:31,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:12:31,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-19 22:12:31,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:12:31,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-19 22:12:31,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:12:31,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 22:12:31,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:12:31,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-19 22:12:31,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:12:31,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-19 22:12:31,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:12:31,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-19 22:12:31,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:12:31,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-12-19 22:12:31,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:12:31,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-12-19 22:12:31,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:12:31,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:12:31,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:12:31,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2023-12-19 22:12:31,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:12:31,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:12:31,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:12:31,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:12:31,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:12:31,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 501 [2023-12-19 22:12:31,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:12:31,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 508 [2023-12-19 22:12:31,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:12:31,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:12:31,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:12:31,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 523 [2023-12-19 22:12:31,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:12:31,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 528 [2023-12-19 22:12:31,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:12:31,333 INFO L134 CoverageAnalysis]: Checked inductivity of 1580 backedges. 122 proven. 101 refuted. 0 times theorem prover too weak. 1357 trivial. 0 not checked. [2023-12-19 22:12:31,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:12:31,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015431706] [2023-12-19 22:12:31,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015431706] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:12:31,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1851043823] [2023-12-19 22:12:31,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:12:31,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:12:31,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:12:31,334 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 22:12:31,336 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-12-19 22:12:31,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:12:31,938 INFO L262 TraceCheckSpWp]: Trace formula consists of 4074 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-19 22:12:31,945 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:12:32,354 INFO L134 CoverageAnalysis]: Checked inductivity of 1580 backedges. 753 proven. 0 refuted. 0 times theorem prover too weak. 827 trivial. 0 not checked. [2023-12-19 22:12:32,355 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 22:12:32,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1851043823] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:12:32,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 22:12:32,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [22] total 28 [2023-12-19 22:12:32,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432897710] [2023-12-19 22:12:32,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:12:32,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 22:12:32,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:12:32,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 22:12:32,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2023-12-19 22:12:32,357 INFO L87 Difference]: Start difference. First operand 92307 states and 162190 transitions. Second operand has 9 states, 9 states have (on average 23.555555555555557) internal successors, (212), 8 states have internal predecessors, (212), 6 states have call successors, (42), 5 states have call predecessors, (42), 7 states have return successors, (41), 7 states have call predecessors, (41), 6 states have call successors, (41)