/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/minepump_spec3_product61.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 22:56:21,358 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 22:56:21,428 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-15 22:56:21,431 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 22:56:21,431 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 22:56:21,454 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 22:56:21,454 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 22:56:21,454 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 22:56:21,455 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 22:56:21,458 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 22:56:21,458 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 22:56:21,459 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 22:56:21,459 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 22:56:21,460 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 22:56:21,460 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 22:56:21,461 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 22:56:21,461 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 22:56:21,461 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 22:56:21,461 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 22:56:21,461 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 22:56:21,462 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 22:56:21,462 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 22:56:21,462 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 22:56:21,462 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 22:56:21,462 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 22:56:21,463 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 22:56:21,463 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 22:56:21,463 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 22:56:21,463 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 22:56:21,463 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 22:56:21,464 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 22:56:21,464 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 22:56:21,464 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 22:56:21,465 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 22:56:21,465 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 22:56:21,465 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 22:56:21,465 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 22:56:21,465 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 22:56:21,465 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 22:56:21,465 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 22:56:21,465 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 22:56:21,466 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 22:56:21,466 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 22:56:21,466 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 22:56:21,663 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 22:56:21,684 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 22:56:21,685 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 22:56:21,686 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 22:56:21,686 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 22:56:21,687 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product61.cil.c [2023-12-15 22:56:22,761 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 22:56:22,919 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 22:56:22,919 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product61.cil.c [2023-12-15 22:56:22,933 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a29fc4303/5a22ac5213554fe9aaa7ed64a4641c43/FLAG640b60883 [2023-12-15 22:56:22,942 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a29fc4303/5a22ac5213554fe9aaa7ed64a4641c43 [2023-12-15 22:56:22,943 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 22:56:22,944 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 22:56:22,945 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 22:56:22,945 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 22:56:22,961 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 22:56:22,962 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:56:22" (1/1) ... [2023-12-15 22:56:22,963 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c587423 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:56:22, skipping insertion in model container [2023-12-15 22:56:22,963 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:56:22" (1/1) ... [2023-12-15 22:56:23,009 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 22:56:23,186 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/minepump_spec3_product61.cil.c[7381,7394] [2023-12-15 22:56:23,255 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 22:56:23,267 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 22:56:23,273 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [49] [2023-12-15 22:56:23,274 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [118] [2023-12-15 22:56:23,274 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [368] [2023-12-15 22:56:23,274 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [472] [2023-12-15 22:56:23,274 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [481] [2023-12-15 22:56:23,274 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [580] [2023-12-15 22:56:23,275 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [614] [2023-12-15 22:56:23,275 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [649] [2023-12-15 22:56:23,298 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/minepump_spec3_product61.cil.c[7381,7394] [2023-12-15 22:56:23,327 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 22:56:23,343 INFO L206 MainTranslator]: Completed translation [2023-12-15 22:56:23,344 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:56:23 WrapperNode [2023-12-15 22:56:23,344 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 22:56:23,345 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 22:56:23,345 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 22:56:23,346 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 22:56:23,350 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:56:23" (1/1) ... [2023-12-15 22:56:23,371 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:56:23" (1/1) ... [2023-12-15 22:56:23,390 INFO L138 Inliner]: procedures = 57, calls = 105, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 227 [2023-12-15 22:56:23,390 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 22:56:23,391 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 22:56:23,391 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 22:56:23,391 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 22:56:23,399 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:56:23" (1/1) ... [2023-12-15 22:56:23,399 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:56:23" (1/1) ... [2023-12-15 22:56:23,400 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:56:23" (1/1) ... [2023-12-15 22:56:23,442 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-15 22:56:23,443 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:56:23" (1/1) ... [2023-12-15 22:56:23,443 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:56:23" (1/1) ... [2023-12-15 22:56:23,446 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:56:23" (1/1) ... [2023-12-15 22:56:23,455 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:56:23" (1/1) ... [2023-12-15 22:56:23,456 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:56:23" (1/1) ... [2023-12-15 22:56:23,457 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:56:23" (1/1) ... [2023-12-15 22:56:23,458 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 22:56:23,459 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 22:56:23,459 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 22:56:23,459 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 22:56:23,462 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:56:23" (1/1) ... [2023-12-15 22:56:23,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 22:56:23,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:56:23,492 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-15 22:56:23,508 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-15 22:56:23,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 22:56:23,515 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-12-15 22:56:23,515 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-12-15 22:56:23,515 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-12-15 22:56:23,515 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-12-15 22:56:23,515 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-15 22:56:23,515 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-15 22:56:23,515 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-15 22:56:23,515 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-15 22:56:23,516 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-12-15 22:56:23,516 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-12-15 22:56:23,516 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-12-15 22:56:23,516 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-12-15 22:56:23,516 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2023-12-15 22:56:23,516 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2023-12-15 22:56:23,516 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-12-15 22:56:23,516 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-12-15 22:56:23,517 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-12-15 22:56:23,517 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-12-15 22:56:23,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 22:56:23,518 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-12-15 22:56:23,518 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-12-15 22:56:23,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 22:56:23,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 22:56:23,594 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 22:56:23,596 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 22:56:23,783 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 22:56:23,830 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 22:56:23,830 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-15 22:56:23,831 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:56:23 BoogieIcfgContainer [2023-12-15 22:56:23,831 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 22:56:23,832 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 22:56:23,832 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 22:56:23,834 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 22:56:23,834 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 10:56:22" (1/3) ... [2023-12-15 22:56:23,835 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f972da3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:56:23, skipping insertion in model container [2023-12-15 22:56:23,835 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:56:23" (2/3) ... [2023-12-15 22:56:23,835 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f972da3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:56:23, skipping insertion in model container [2023-12-15 22:56:23,835 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:56:23" (3/3) ... [2023-12-15 22:56:23,836 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product61.cil.c [2023-12-15 22:56:23,849 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 22:56:23,849 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 22:56:23,880 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 22:56:23,884 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;@5f8f7ef2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 22:56:23,884 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 22:56:23,887 INFO L276 IsEmpty]: Start isEmpty. Operand has 89 states, 59 states have (on average 1.5084745762711864) internal successors, (89), 69 states have internal predecessors, (89), 18 states have call successors, (18), 10 states have call predecessors, (18), 10 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-15 22:56:23,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-15 22:56:23,893 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:56:23,893 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:56:23,894 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:56:23,899 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:56:23,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1735961070, now seen corresponding path program 1 times [2023-12-15 22:56:23,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:56:23,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728546804] [2023-12-15 22:56:23,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:56:23,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:56:24,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:24,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-15 22:56:24,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:24,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:56:24,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:56:24,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728546804] [2023-12-15 22:56:24,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728546804] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:56:24,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:56:24,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 22:56:24,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953390563] [2023-12-15 22:56:24,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:56:24,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-15 22:56:24,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:56:24,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-15 22:56:24,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 22:56:24,118 INFO L87 Difference]: Start difference. First operand has 89 states, 59 states have (on average 1.5084745762711864) internal successors, (89), 69 states have internal predecessors, (89), 18 states have call successors, (18), 10 states have call predecessors, (18), 10 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-15 22:56:24,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:56:24,179 INFO L93 Difference]: Finished difference Result 176 states and 251 transitions. [2023-12-15 22:56:24,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-15 22:56:24,181 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2023-12-15 22:56:24,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:56:24,189 INFO L225 Difference]: With dead ends: 176 [2023-12-15 22:56:24,190 INFO L226 Difference]: Without dead ends: 84 [2023-12-15 22:56:24,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 22:56:24,194 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:56:24,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 104 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:56:24,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-12-15 22:56:24,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2023-12-15 22:56:24,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 56 states have (on average 1.4107142857142858) internal successors, (79), 65 states have internal predecessors, (79), 18 states have call successors, (18), 10 states have call predecessors, (18), 9 states have return successors, (17), 12 states have call predecessors, (17), 17 states have call successors, (17) [2023-12-15 22:56:24,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 114 transitions. [2023-12-15 22:56:24,232 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 114 transitions. Word has length 17 [2023-12-15 22:56:24,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:56:24,233 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 114 transitions. [2023-12-15 22:56:24,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-15 22:56:24,233 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 114 transitions. [2023-12-15 22:56:24,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-15 22:56:24,234 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:56:24,234 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:56:24,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-15 22:56:24,235 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:56:24,235 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:56:24,235 INFO L85 PathProgramCache]: Analyzing trace with hash 260613743, now seen corresponding path program 1 times [2023-12-15 22:56:24,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:56:24,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563546618] [2023-12-15 22:56:24,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:56:24,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:56:24,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:24,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-15 22:56:24,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:24,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:56:24,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:56:24,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563546618] [2023-12-15 22:56:24,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563546618] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:56:24,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:56:24,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 22:56:24,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444662006] [2023-12-15 22:56:24,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:56:24,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 22:56:24,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:56:24,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 22:56:24,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 22:56:24,333 INFO L87 Difference]: Start difference. First operand 84 states and 114 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-15 22:56:24,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:56:24,377 INFO L93 Difference]: Finished difference Result 141 states and 191 transitions. [2023-12-15 22:56:24,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 22:56:24,386 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2023-12-15 22:56:24,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:56:24,387 INFO L225 Difference]: With dead ends: 141 [2023-12-15 22:56:24,387 INFO L226 Difference]: Without dead ends: 76 [2023-12-15 22:56:24,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 22:56:24,389 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 11 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:56:24,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 166 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:56:24,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2023-12-15 22:56:24,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2023-12-15 22:56:24,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 51 states have (on average 1.4313725490196079) internal successors, (73), 60 states have internal predecessors, (73), 15 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-15 22:56:24,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 103 transitions. [2023-12-15 22:56:24,399 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 103 transitions. Word has length 18 [2023-12-15 22:56:24,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:56:24,400 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 103 transitions. [2023-12-15 22:56:24,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-15 22:56:24,400 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 103 transitions. [2023-12-15 22:56:24,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-15 22:56:24,401 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:56:24,401 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:56:24,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-15 22:56:24,401 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:56:24,401 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:56:24,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1473546257, now seen corresponding path program 1 times [2023-12-15 22:56:24,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:56:24,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978610425] [2023-12-15 22:56:24,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:56:24,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:56:24,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:24,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-15 22:56:24,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:24,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:56:24,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:56:24,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978610425] [2023-12-15 22:56:24,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978610425] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:56:24,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:56:24,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 22:56:24,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484132659] [2023-12-15 22:56:24,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:56:24,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 22:56:24,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:56:24,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 22:56:24,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-15 22:56:24,492 INFO L87 Difference]: Start difference. First operand 76 states and 103 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-15 22:56:24,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:56:24,585 INFO L93 Difference]: Finished difference Result 150 states and 205 transitions. [2023-12-15 22:56:24,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-15 22:56:24,585 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2023-12-15 22:56:24,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:56:24,586 INFO L225 Difference]: With dead ends: 150 [2023-12-15 22:56:24,586 INFO L226 Difference]: Without dead ends: 76 [2023-12-15 22:56:24,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-15 22:56:24,588 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 102 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 22:56:24,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 132 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 22:56:24,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2023-12-15 22:56:24,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2023-12-15 22:56:24,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 51 states have (on average 1.411764705882353) internal successors, (72), 60 states have internal predecessors, (72), 15 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-15 22:56:24,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 102 transitions. [2023-12-15 22:56:24,596 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 102 transitions. Word has length 21 [2023-12-15 22:56:24,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:56:24,596 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 102 transitions. [2023-12-15 22:56:24,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-15 22:56:24,596 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 102 transitions. [2023-12-15 22:56:24,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-12-15 22:56:24,597 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:56:24,597 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:56:24,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-15 22:56:24,598 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:56:24,598 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:56:24,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1105962929, now seen corresponding path program 1 times [2023-12-15 22:56:24,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:56:24,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124321588] [2023-12-15 22:56:24,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:56:24,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:56:24,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:24,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-15 22:56:24,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:24,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-15 22:56:24,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:24,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 22:56:24,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:24,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:56:24,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:56:24,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124321588] [2023-12-15 22:56:24,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124321588] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:56:24,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:56:24,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 22:56:24,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046836546] [2023-12-15 22:56:24,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:56:24,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 22:56:24,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:56:24,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 22:56:24,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-15 22:56:24,718 INFO L87 Difference]: Start difference. First operand 76 states and 102 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-15 22:56:24,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:56:24,953 INFO L93 Difference]: Finished difference Result 232 states and 311 transitions. [2023-12-15 22:56:24,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:56:24,953 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 34 [2023-12-15 22:56:24,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:56:24,957 INFO L225 Difference]: With dead ends: 232 [2023-12-15 22:56:24,957 INFO L226 Difference]: Without dead ends: 158 [2023-12-15 22:56:24,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:56:24,968 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 154 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 22:56:24,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 289 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 22:56:24,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2023-12-15 22:56:24,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 152. [2023-12-15 22:56:24,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 105 states have (on average 1.3428571428571427) internal successors, (141), 114 states have internal predecessors, (141), 22 states have call successors, (22), 17 states have call predecessors, (22), 24 states have return successors, (35), 26 states have call predecessors, (35), 22 states have call successors, (35) [2023-12-15 22:56:24,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 198 transitions. [2023-12-15 22:56:24,988 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 198 transitions. Word has length 34 [2023-12-15 22:56:24,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:56:24,988 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 198 transitions. [2023-12-15 22:56:24,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-15 22:56:24,989 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 198 transitions. [2023-12-15 22:56:24,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-15 22:56:24,989 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:56:24,989 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:56:24,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-15 22:56:24,990 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:56:24,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:56:24,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1638769303, now seen corresponding path program 1 times [2023-12-15 22:56:24,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:56:24,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481944281] [2023-12-15 22:56:24,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:56:24,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:56:25,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:25,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-15 22:56:25,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:25,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:56:25,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:25,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-15 22:56:25,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:25,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-15 22:56:25,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:25,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:56:25,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:56:25,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481944281] [2023-12-15 22:56:25,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481944281] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:56:25,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:56:25,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 22:56:25,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023525778] [2023-12-15 22:56:25,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:56:25,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 22:56:25,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:56:25,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 22:56:25,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 22:56:25,083 INFO L87 Difference]: Start difference. First operand 152 states and 198 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-15 22:56:25,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:56:25,284 INFO L93 Difference]: Finished difference Result 392 states and 526 transitions. [2023-12-15 22:56:25,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 22:56:25,285 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 41 [2023-12-15 22:56:25,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:56:25,288 INFO L225 Difference]: With dead ends: 392 [2023-12-15 22:56:25,288 INFO L226 Difference]: Without dead ends: 242 [2023-12-15 22:56:25,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-15 22:56:25,294 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 135 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 22:56:25,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 221 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 22:56:25,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2023-12-15 22:56:25,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 238. [2023-12-15 22:56:25,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 166 states have (on average 1.3132530120481927) internal successors, (218), 178 states have internal predecessors, (218), 35 states have call successors, (35), 29 states have call predecessors, (35), 36 states have return successors, (56), 39 states have call predecessors, (56), 35 states have call successors, (56) [2023-12-15 22:56:25,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 309 transitions. [2023-12-15 22:56:25,327 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 309 transitions. Word has length 41 [2023-12-15 22:56:25,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:56:25,328 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 309 transitions. [2023-12-15 22:56:25,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-15 22:56:25,328 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 309 transitions. [2023-12-15 22:56:25,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-15 22:56:25,332 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:56:25,332 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:56:25,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-15 22:56:25,333 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:56:25,333 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:56:25,333 INFO L85 PathProgramCache]: Analyzing trace with hash -2134046461, now seen corresponding path program 1 times [2023-12-15 22:56:25,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:56:25,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570258081] [2023-12-15 22:56:25,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:56:25,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:56:25,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:25,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-15 22:56:25,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:25,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-15 22:56:25,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:25,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:56:25,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:25,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-15 22:56:25,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:25,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-15 22:56:25,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:25,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:56:25,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:56:25,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570258081] [2023-12-15 22:56:25,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570258081] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:56:25,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:56:25,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:56:25,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409951030] [2023-12-15 22:56:25,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:56:25,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:56:25,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:56:25,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:56:25,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:56:25,445 INFO L87 Difference]: Start difference. First operand 238 states and 309 transitions. Second operand has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-12-15 22:56:25,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:56:25,826 INFO L93 Difference]: Finished difference Result 614 states and 861 transitions. [2023-12-15 22:56:25,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-15 22:56:25,826 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 45 [2023-12-15 22:56:25,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:56:25,830 INFO L225 Difference]: With dead ends: 614 [2023-12-15 22:56:25,830 INFO L226 Difference]: Without dead ends: 464 [2023-12-15 22:56:25,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2023-12-15 22:56:25,832 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 309 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-15 22:56:25,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 207 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-15 22:56:25,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2023-12-15 22:56:25,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 416. [2023-12-15 22:56:25,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 289 states have (on average 1.28719723183391) internal successors, (372), 313 states have internal predecessors, (372), 64 states have call successors, (64), 44 states have call predecessors, (64), 62 states have return successors, (129), 70 states have call predecessors, (129), 64 states have call successors, (129) [2023-12-15 22:56:25,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 565 transitions. [2023-12-15 22:56:25,862 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 565 transitions. Word has length 45 [2023-12-15 22:56:25,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:56:25,862 INFO L495 AbstractCegarLoop]: Abstraction has 416 states and 565 transitions. [2023-12-15 22:56:25,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-12-15 22:56:25,863 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 565 transitions. [2023-12-15 22:56:25,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-15 22:56:25,863 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:56:25,864 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:56:25,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-15 22:56:25,864 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:56:25,864 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:56:25,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1915191743, now seen corresponding path program 1 times [2023-12-15 22:56:25,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:56:25,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709930151] [2023-12-15 22:56:25,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:56:25,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:56:25,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:25,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-15 22:56:25,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:25,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-15 22:56:25,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:25,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:56:25,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:25,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-15 22:56:25,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:25,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-15 22:56:25,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:25,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:56:25,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:56:25,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709930151] [2023-12-15 22:56:25,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709930151] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:56:25,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:56:25,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 22:56:25,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944115958] [2023-12-15 22:56:25,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:56:25,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 22:56:25,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:56:25,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 22:56:25,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-15 22:56:25,930 INFO L87 Difference]: Start difference. First operand 416 states and 565 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 22:56:26,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:56:26,179 INFO L93 Difference]: Finished difference Result 778 states and 1076 transitions. [2023-12-15 22:56:26,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:56:26,180 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 45 [2023-12-15 22:56:26,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:56:26,182 INFO L225 Difference]: With dead ends: 778 [2023-12-15 22:56:26,182 INFO L226 Difference]: Without dead ends: 446 [2023-12-15 22:56:26,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-15 22:56:26,183 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 143 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 22:56:26,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 181 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 22:56:26,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2023-12-15 22:56:26,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 416. [2023-12-15 22:56:26,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 289 states have (on average 1.2837370242214532) internal successors, (371), 313 states have internal predecessors, (371), 64 states have call successors, (64), 44 states have call predecessors, (64), 62 states have return successors, (129), 70 states have call predecessors, (129), 64 states have call successors, (129) [2023-12-15 22:56:26,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 564 transitions. [2023-12-15 22:56:26,206 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 564 transitions. Word has length 45 [2023-12-15 22:56:26,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:56:26,206 INFO L495 AbstractCegarLoop]: Abstraction has 416 states and 564 transitions. [2023-12-15 22:56:26,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 22:56:26,206 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 564 transitions. [2023-12-15 22:56:26,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-15 22:56:26,207 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:56:26,207 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:56:26,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-15 22:56:26,207 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:56:26,207 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:56:26,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1562127103, now seen corresponding path program 1 times [2023-12-15 22:56:26,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:56:26,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648884276] [2023-12-15 22:56:26,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:56:26,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:56:26,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:26,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-15 22:56:26,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:26,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-15 22:56:26,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:26,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:56:26,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:26,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-15 22:56:26,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:26,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-15 22:56:26,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:26,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:56:26,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:56:26,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648884276] [2023-12-15 22:56:26,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648884276] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:56:26,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:56:26,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 22:56:26,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010602933] [2023-12-15 22:56:26,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:56:26,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 22:56:26,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:56:26,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 22:56:26,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-15 22:56:26,265 INFO L87 Difference]: Start difference. First operand 416 states and 564 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 22:56:26,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:56:26,465 INFO L93 Difference]: Finished difference Result 877 states and 1224 transitions. [2023-12-15 22:56:26,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-15 22:56:26,465 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 45 [2023-12-15 22:56:26,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:56:26,467 INFO L225 Difference]: With dead ends: 877 [2023-12-15 22:56:26,467 INFO L226 Difference]: Without dead ends: 463 [2023-12-15 22:56:26,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:56:26,468 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 135 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 22:56:26,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 196 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 22:56:26,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2023-12-15 22:56:26,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 417. [2023-12-15 22:56:26,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 292 states have (on average 1.2773972602739727) internal successors, (373), 315 states have internal predecessors, (373), 63 states have call successors, (63), 43 states have call predecessors, (63), 61 states have return successors, (128), 69 states have call predecessors, (128), 63 states have call successors, (128) [2023-12-15 22:56:26,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 564 transitions. [2023-12-15 22:56:26,487 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 564 transitions. Word has length 45 [2023-12-15 22:56:26,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:56:26,487 INFO L495 AbstractCegarLoop]: Abstraction has 417 states and 564 transitions. [2023-12-15 22:56:26,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 22:56:26,487 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 564 transitions. [2023-12-15 22:56:26,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-15 22:56:26,488 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:56:26,488 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] [2023-12-15 22:56:26,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-15 22:56:26,488 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:56:26,488 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:56:26,488 INFO L85 PathProgramCache]: Analyzing trace with hash 460109926, now seen corresponding path program 1 times [2023-12-15 22:56:26,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:56:26,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634532533] [2023-12-15 22:56:26,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:56:26,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:56:26,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:26,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-15 22:56:26,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:26,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-15 22:56:26,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:26,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:56:26,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:26,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-15 22:56:26,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:26,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:56:26,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:26,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-15 22:56:26,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:26,566 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-15 22:56:26,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:56:26,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634532533] [2023-12-15 22:56:26,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634532533] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:56:26,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:56:26,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 22:56:26,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898352686] [2023-12-15 22:56:26,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:56:26,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 22:56:26,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:56:26,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 22:56:26,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-15 22:56:26,567 INFO L87 Difference]: Start difference. First operand 417 states and 564 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-12-15 22:56:26,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:56:26,816 INFO L93 Difference]: Finished difference Result 814 states and 1105 transitions. [2023-12-15 22:56:26,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-15 22:56:26,816 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 52 [2023-12-15 22:56:26,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:56:26,818 INFO L225 Difference]: With dead ends: 814 [2023-12-15 22:56:26,818 INFO L226 Difference]: Without dead ends: 399 [2023-12-15 22:56:26,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-12-15 22:56:26,821 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 206 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 22:56:26,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 233 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 22:56:26,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2023-12-15 22:56:26,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 395. [2023-12-15 22:56:26,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 278 states have (on average 1.2410071942446044) internal successors, (345), 299 states have internal predecessors, (345), 59 states have call successors, (59), 43 states have call predecessors, (59), 57 states have return successors, (86), 63 states have call predecessors, (86), 59 states have call successors, (86) [2023-12-15 22:56:26,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 490 transitions. [2023-12-15 22:56:26,844 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 490 transitions. Word has length 52 [2023-12-15 22:56:26,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:56:26,845 INFO L495 AbstractCegarLoop]: Abstraction has 395 states and 490 transitions. [2023-12-15 22:56:26,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-12-15 22:56:26,845 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 490 transitions. [2023-12-15 22:56:26,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-15 22:56:26,846 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:56:26,846 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] [2023-12-15 22:56:26,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-15 22:56:26,846 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:56:26,847 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:56:26,847 INFO L85 PathProgramCache]: Analyzing trace with hash -115226343, now seen corresponding path program 1 times [2023-12-15 22:56:26,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:56:26,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955144052] [2023-12-15 22:56:26,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:56:26,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:56:26,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:26,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-15 22:56:26,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:26,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-15 22:56:26,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:26,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:56:26,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:26,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-15 22:56:27,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:27,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:56:27,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:27,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-15 22:56:27,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:27,056 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-15 22:56:27,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:56:27,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955144052] [2023-12-15 22:56:27,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955144052] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:56:27,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [955394460] [2023-12-15 22:56:27,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:56:27,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:56:27,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:56:27,084 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 22:56:27,126 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-15 22:56:27,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:27,168 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-15 22:56:27,172 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:56:27,294 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:56:27,294 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 22:56:27,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [955394460] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:56:27,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 22:56:27,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2023-12-15 22:56:27,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338533019] [2023-12-15 22:56:27,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:56:27,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-15 22:56:27,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:56:27,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-15 22:56:27,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2023-12-15 22:56:27,295 INFO L87 Difference]: Start difference. First operand 395 states and 490 transitions. Second operand has 8 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2023-12-15 22:56:27,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:56:27,466 INFO L93 Difference]: Finished difference Result 1165 states and 1470 transitions. [2023-12-15 22:56:27,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-15 22:56:27,466 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) Word has length 52 [2023-12-15 22:56:27,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:56:27,470 INFO L225 Difference]: With dead ends: 1165 [2023-12-15 22:56:27,470 INFO L226 Difference]: Without dead ends: 772 [2023-12-15 22:56:27,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2023-12-15 22:56:27,471 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 62 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 22:56:27,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 449 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 22:56:27,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 772 states. [2023-12-15 22:56:27,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 772 to 770. [2023-12-15 22:56:27,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 770 states, 541 states have (on average 1.2255083179297597) internal successors, (663), 579 states have internal predecessors, (663), 117 states have call successors, (117), 86 states have call predecessors, (117), 111 states have return successors, (174), 123 states have call predecessors, (174), 117 states have call successors, (174) [2023-12-15 22:56:27,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 770 states to 770 states and 954 transitions. [2023-12-15 22:56:27,503 INFO L78 Accepts]: Start accepts. Automaton has 770 states and 954 transitions. Word has length 52 [2023-12-15 22:56:27,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:56:27,503 INFO L495 AbstractCegarLoop]: Abstraction has 770 states and 954 transitions. [2023-12-15 22:56:27,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2023-12-15 22:56:27,503 INFO L276 IsEmpty]: Start isEmpty. Operand 770 states and 954 transitions. [2023-12-15 22:56:27,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-15 22:56:27,505 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:56:27,505 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] [2023-12-15 22:56:27,513 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-15 22:56:27,713 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,SelfDestructingSolverStorable9 [2023-12-15 22:56:27,714 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:56:27,714 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:56:27,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1776931773, now seen corresponding path program 1 times [2023-12-15 22:56:27,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:56:27,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572259457] [2023-12-15 22:56:27,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:56:27,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:56:27,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:27,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-15 22:56:27,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:27,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-15 22:56:27,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:27,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:56:27,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:27,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:56:27,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:27,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-15 22:56:27,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:27,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:56:27,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:27,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-15 22:56:27,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:27,809 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-15 22:56:27,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:56:27,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572259457] [2023-12-15 22:56:27,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572259457] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:56:27,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:56:27,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-15 22:56:27,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678847516] [2023-12-15 22:56:27,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:56:27,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-15 22:56:27,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:56:27,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-15 22:56:27,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-12-15 22:56:27,811 INFO L87 Difference]: Start difference. First operand 770 states and 954 transitions. Second operand has 11 states, 10 states have (on average 4.1) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-15 22:56:28,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:56:28,679 INFO L93 Difference]: Finished difference Result 1533 states and 1913 transitions. [2023-12-15 22:56:28,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-15 22:56:28,679 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.1) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 56 [2023-12-15 22:56:28,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:56:28,682 INFO L225 Difference]: With dead ends: 1533 [2023-12-15 22:56:28,682 INFO L226 Difference]: Without dead ends: 765 [2023-12-15 22:56:28,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=254, Invalid=936, Unknown=0, NotChecked=0, Total=1190 [2023-12-15 22:56:28,686 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 340 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 1225 mSolverCounterSat, 172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 1397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 1225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-15 22:56:28,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [345 Valid, 201 Invalid, 1397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [172 Valid, 1225 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-15 22:56:28,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2023-12-15 22:56:28,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 754. [2023-12-15 22:56:28,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 754 states, 525 states have (on average 1.1866666666666668) internal successors, (623), 563 states have internal predecessors, (623), 117 states have call successors, (117), 86 states have call predecessors, (117), 111 states have return successors, (168), 123 states have call predecessors, (168), 117 states have call successors, (168) [2023-12-15 22:56:28,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 908 transitions. [2023-12-15 22:56:28,717 INFO L78 Accepts]: Start accepts. Automaton has 754 states and 908 transitions. Word has length 56 [2023-12-15 22:56:28,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:56:28,718 INFO L495 AbstractCegarLoop]: Abstraction has 754 states and 908 transitions. [2023-12-15 22:56:28,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.1) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-15 22:56:28,718 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 908 transitions. [2023-12-15 22:56:28,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-15 22:56:28,720 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:56:28,721 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2023-12-15 22:56:28,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-15 22:56:28,721 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:56:28,721 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:56:28,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1762287868, now seen corresponding path program 1 times [2023-12-15 22:56:28,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:56:28,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005471456] [2023-12-15 22:56:28,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:56:28,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:56:28,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:28,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-15 22:56:28,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:28,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-15 22:56:28,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:28,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:56:28,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:28,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:56:28,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:28,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-15 22:56:28,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:28,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:56:28,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:29,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-15 22:56:29,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:29,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-15 22:56:29,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:29,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:56:29,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:29,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-15 22:56:29,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:29,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-15 22:56:29,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:29,019 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-15 22:56:29,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:56:29,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005471456] [2023-12-15 22:56:29,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005471456] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:56:29,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1587078641] [2023-12-15 22:56:29,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:56:29,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:56:29,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:56:29,020 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 22:56:29,029 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-15 22:56:29,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:29,102 INFO L262 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-15 22:56:29,105 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:56:29,181 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 12 proven. 11 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-15 22:56:29,181 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 22:56:29,341 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-15 22:56:29,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1587078641] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 22:56:29,342 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-15 22:56:29,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 7, 8] total 22 [2023-12-15 22:56:29,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410855064] [2023-12-15 22:56:29,342 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-15 22:56:29,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-12-15 22:56:29,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:56:29,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-12-15 22:56:29,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=387, Unknown=0, NotChecked=0, Total=462 [2023-12-15 22:56:29,343 INFO L87 Difference]: Start difference. First operand 754 states and 908 transitions. Second operand has 22 states, 20 states have (on average 4.65) internal successors, (93), 15 states have internal predecessors, (93), 7 states have call successors, (25), 9 states have call predecessors, (25), 11 states have return successors, (25), 9 states have call predecessors, (25), 7 states have call successors, (25) [2023-12-15 22:56:30,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:56:30,904 INFO L93 Difference]: Finished difference Result 1573 states and 1958 transitions. [2023-12-15 22:56:30,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2023-12-15 22:56:30,905 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 4.65) internal successors, (93), 15 states have internal predecessors, (93), 7 states have call successors, (25), 9 states have call predecessors, (25), 11 states have return successors, (25), 9 states have call predecessors, (25), 7 states have call successors, (25) Word has length 86 [2023-12-15 22:56:30,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:56:30,905 INFO L225 Difference]: With dead ends: 1573 [2023-12-15 22:56:30,905 INFO L226 Difference]: Without dead ends: 0 [2023-12-15 22:56:30,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 198 SyntacticMatches, 6 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1742 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1492, Invalid=4670, Unknown=0, NotChecked=0, Total=6162 [2023-12-15 22:56:30,911 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 1552 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 1001 mSolverCounterSat, 759 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1555 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 1760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 759 IncrementalHoareTripleChecker+Valid, 1001 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-15 22:56:30,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1555 Valid, 459 Invalid, 1760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [759 Valid, 1001 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-15 22:56:30,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-15 22:56:30,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-15 22:56:30,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 22:56:30,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-15 22:56:30,912 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 86 [2023-12-15 22:56:30,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:56:30,912 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-15 22:56:30,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 4.65) internal successors, (93), 15 states have internal predecessors, (93), 7 states have call successors, (25), 9 states have call predecessors, (25), 11 states have return successors, (25), 9 states have call predecessors, (25), 7 states have call successors, (25) [2023-12-15 22:56:30,913 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-15 22:56:30,913 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-15 22:56:30,915 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-15 22:56:30,922 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-15 22:56:31,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-12-15 22:56:31,123 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-15 22:56:33,190 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 266 273) no Hoare annotation was computed. [2023-12-15 22:56:33,190 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 266 273) the Hoare annotation is: (let ((.cse0 (< 1 ~waterLevel~0)) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (= 0 ~systemActive~0)) (.cse3 (= ~pumpRunning~0 1))) (and (or .cse0 .cse1 .cse2 (< ~methaneLevelCritical~0 1) .cse3) (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1 .cse2 .cse3))) [2023-12-15 22:56:33,190 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 156 162) no Hoare annotation was computed. [2023-12-15 22:56:33,190 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 156 162) the Hoare annotation is: true [2023-12-15 22:56:33,190 INFO L895 garLoopResultBuilder]: At program point L209(line 209) the Hoare annotation is: (let ((.cse4 (< 2 ~waterLevel~0)) (.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (= ~pumpRunning~0 0)) (.cse3 (< ~methaneLevelCritical~0 1)) (.cse0 (< 1 ~waterLevel~0)) (.cse7 (not (= ~methaneLevelCritical~0 0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse6 .cse7 .cse2) (or .cse4 .cse5 .cse6 .cse2 .cse3) (or .cse0 .cse7 .cse1 .cse2))) [2023-12-15 22:56:33,191 INFO L899 garLoopResultBuilder]: For program point L209-1(lines 190 214) no Hoare annotation was computed. [2023-12-15 22:56:33,191 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 190 214) the Hoare annotation is: (let ((.cse5 (< 2 ~waterLevel~0)) (.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse7 (= ~pumpRunning~0 0)) (.cse3 (< ~methaneLevelCritical~0 1)) (.cse0 (< 1 ~waterLevel~0)) (.cse8 (not (= ~methaneLevelCritical~0 0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (= 0 ~systemActive~0)) (.cse4 (= ~pumpRunning~0 1))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse6 .cse7 .cse8 .cse2) (or .cse5 .cse6 .cse7 .cse2 .cse3) (or .cse0 .cse8 .cse1 .cse2 .cse4))) [2023-12-15 22:56:33,191 INFO L899 garLoopResultBuilder]: For program point L358(lines 358 362) no Hoare annotation was computed. [2023-12-15 22:56:33,191 INFO L899 garLoopResultBuilder]: For program point L358-2(lines 358 362) no Hoare annotation was computed. [2023-12-15 22:56:33,191 INFO L895 garLoopResultBuilder]: At program point L204(line 204) the Hoare annotation is: (let ((.cse0 (< 1 ~waterLevel~0)) (.cse2 (not (= |old(~pumpRunning~0)| 1))) (.cse4 (and (= |processEnvironment__wrappee__methaneQuery_~tmp~2#1| 0) (= ~pumpRunning~0 1))) (.cse7 (< ~methaneLevelCritical~0 1)) (.cse5 (< 2 ~waterLevel~0)) (.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse3 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse6 .cse3 .cse7) (or .cse0 .cse2 .cse3 .cse4 .cse7) (or .cse5 .cse6 .cse1 .cse3))) [2023-12-15 22:56:33,191 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 190 214) no Hoare annotation was computed. [2023-12-15 22:56:33,191 INFO L895 garLoopResultBuilder]: At program point L200(line 200) the Hoare annotation is: (let ((.cse3 (< ~methaneLevelCritical~0 1)) (.cse5 (< 2 ~waterLevel~0)) (.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (< 1 ~waterLevel~0)) (.cse7 (not (= ~methaneLevelCritical~0 0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (= 0 ~systemActive~0)) (.cse4 (= ~pumpRunning~0 1))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse6 .cse2 .cse3) (or .cse5 .cse6 .cse7 .cse2) (or .cse0 .cse7 .cse1 .cse2 .cse4))) [2023-12-15 22:56:33,191 INFO L899 garLoopResultBuilder]: For program point L198(lines 198 206) no Hoare annotation was computed. [2023-12-15 22:56:33,191 INFO L899 garLoopResultBuilder]: For program point L194(lines 194 211) no Hoare annotation was computed. [2023-12-15 22:56:33,191 INFO L899 garLoopResultBuilder]: For program point L400-1(lines 396 407) no Hoare annotation was computed. [2023-12-15 22:56:33,192 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 396 407) the Hoare annotation is: (let ((.cse3 (not (= ~pumpRunning~0 1))) (.cse1 (not (= |old(~methaneLevelCritical~0)| 0))) (.cse2 (= ~methaneLevelCritical~0 0)) (.cse0 (< 2 ~waterLevel~0)) (.cse7 (not (= ~pumpRunning~0 0))) (.cse5 (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0)) (.cse6 (< |old(~methaneLevelCritical~0)| 1)) (.cse4 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse5 .cse6 .cse3 .cse4) (or .cse0 .cse1 .cse7 .cse2 .cse4) (or .cse0 .cse7 .cse5 .cse6 .cse4))) [2023-12-15 22:56:33,192 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 396 407) no Hoare annotation was computed. [2023-12-15 22:56:33,192 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 408 416) the Hoare annotation is: true [2023-12-15 22:56:33,192 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 408 416) no Hoare annotation was computed. [2023-12-15 22:56:33,192 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 483 512) no Hoare annotation was computed. [2023-12-15 22:56:33,192 INFO L899 garLoopResultBuilder]: For program point L508(lines 483 512) no Hoare annotation was computed. [2023-12-15 22:56:33,192 INFO L899 garLoopResultBuilder]: For program point L504(line 504) no Hoare annotation was computed. [2023-12-15 22:56:33,192 INFO L899 garLoopResultBuilder]: For program point L497(lines 497 501) no Hoare annotation was computed. [2023-12-15 22:56:33,192 INFO L902 garLoopResultBuilder]: At program point L497-1(lines 497 501) the Hoare annotation is: true [2023-12-15 22:56:33,192 INFO L902 garLoopResultBuilder]: At program point L493-2(lines 493 507) the Hoare annotation is: true [2023-12-15 22:56:33,192 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 483 512) the Hoare annotation is: true [2023-12-15 22:56:33,192 INFO L902 garLoopResultBuilder]: At program point L489(line 489) the Hoare annotation is: true [2023-12-15 22:56:33,192 INFO L899 garLoopResultBuilder]: For program point L489-1(line 489) no Hoare annotation was computed. [2023-12-15 22:56:33,192 INFO L899 garLoopResultBuilder]: For program point L477(line 477) no Hoare annotation was computed. [2023-12-15 22:56:33,192 INFO L899 garLoopResultBuilder]: For program point L143-1(lines 143 149) no Hoare annotation was computed. [2023-12-15 22:56:33,193 INFO L895 garLoopResultBuilder]: At program point L230(line 230) the Hoare annotation is: (let ((.cse4 (and (<= ~waterLevel~0 1) (<= ~waterLevel~0 |old(~waterLevel~0)|) (= ~pumpRunning~0 1))) (.cse6 (not (= |old(~pumpRunning~0)| 1))) (.cse3 (< ~methaneLevelCritical~0 1)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse1 (= 0 ~systemActive~0)) (.cse2 (< 2 |old(~waterLevel~0)|))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse6 .cse1 .cse2) (or .cse4 .cse6 .cse1 .cse2 .cse3) (or .cse0 .cse5 .cse1 .cse2))) [2023-12-15 22:56:33,193 INFO L895 garLoopResultBuilder]: At program point L226(line 226) the Hoare annotation is: (let ((.cse4 (and (<= ~waterLevel~0 1) (<= ~waterLevel~0 |old(~waterLevel~0)|) (= ~pumpRunning~0 1))) (.cse6 (not (= |old(~pumpRunning~0)| 1))) (.cse3 (< ~methaneLevelCritical~0 1)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse1 (= 0 ~systemActive~0)) (.cse2 (< 2 |old(~waterLevel~0)|))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse6 .cse1 .cse2) (or .cse4 .cse6 .cse1 .cse2 .cse3) (or .cse0 .cse5 .cse1 .cse2))) [2023-12-15 22:56:33,193 INFO L895 garLoopResultBuilder]: At program point L222(line 222) the Hoare annotation is: (let ((.cse4 (and (<= ~waterLevel~0 1) (<= ~waterLevel~0 |old(~waterLevel~0)|) (= ~pumpRunning~0 1))) (.cse6 (not (= |old(~pumpRunning~0)| 1))) (.cse3 (< ~methaneLevelCritical~0 1)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse1 (= 0 ~systemActive~0)) (.cse2 (< 2 |old(~waterLevel~0)|))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse6 .cse1 .cse2) (or .cse4 .cse6 .cse1 .cse2 .cse3) (or .cse0 .cse5 .cse1 .cse2))) [2023-12-15 22:56:33,193 INFO L899 garLoopResultBuilder]: For program point L222-1(line 222) no Hoare annotation was computed. [2023-12-15 22:56:33,193 INFO L899 garLoopResultBuilder]: For program point L590(lines 590 610) no Hoare annotation was computed. [2023-12-15 22:56:33,193 INFO L895 garLoopResultBuilder]: At program point L235(line 235) the Hoare annotation is: (let ((.cse0 (not (= ~methaneLevelCritical~0 0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0))) (.cse2 (= 0 ~systemActive~0)) (.cse3 (< 2 |old(~waterLevel~0)|)) (.cse6 (< ~methaneLevelCritical~0 1))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse0 .cse2 .cse3) (or .cse1 .cse2 .cse3 .cse6) (or .cse4 .cse5 .cse2 .cse3 .cse6))) [2023-12-15 22:56:33,193 INFO L899 garLoopResultBuilder]: For program point L235-1(lines 216 240) no Hoare annotation was computed. [2023-12-15 22:56:33,193 INFO L899 garLoopResultBuilder]: For program point L136-1(lines 135 154) no Hoare annotation was computed. [2023-12-15 22:56:33,193 INFO L899 garLoopResultBuilder]: For program point L376(lines 376 380) no Hoare annotation was computed. [2023-12-15 22:56:33,193 INFO L899 garLoopResultBuilder]: For program point L376-2(lines 372 383) no Hoare annotation was computed. [2023-12-15 22:56:33,193 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 132 155) the Hoare annotation is: (let ((.cse8 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse0 (not (= ~methaneLevelCritical~0 0))) (.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (and (= ~pumpRunning~0 0) .cse8)) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (= 0 ~systemActive~0)) (.cse3 (< 2 |old(~waterLevel~0)|)) (.cse7 (< ~methaneLevelCritical~0 1)) (.cse4 (and .cse8 (= ~pumpRunning~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse6 .cse0 .cse2 .cse3) (or .cse5 .cse6 .cse2 .cse3 .cse7) (or .cse1 .cse2 .cse3 .cse7 .cse4)))) [2023-12-15 22:56:33,193 INFO L899 garLoopResultBuilder]: For program point L224(lines 224 232) no Hoare annotation was computed. [2023-12-15 22:56:33,193 INFO L899 garLoopResultBuilder]: For program point L220(lines 220 237) no Hoare annotation was computed. [2023-12-15 22:56:33,194 INFO L899 garLoopResultBuilder]: For program point L600(lines 600 606) no Hoare annotation was computed. [2023-12-15 22:56:33,194 INFO L899 garLoopResultBuilder]: For program point L596(lines 596 609) no Hoare annotation was computed. [2023-12-15 22:56:33,194 INFO L899 garLoopResultBuilder]: For program point L596-1(lines 581 613) no Hoare annotation was computed. [2023-12-15 22:56:33,194 INFO L895 garLoopResultBuilder]: At program point L588(line 588) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (<= ~waterLevel~0 1)) (.cse12 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse7 (= ~pumpRunning~0 1))) (let ((.cse8 (and .cse1 .cse12 .cse7)) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse9 (not (= |old(~pumpRunning~0)| 1))) (.cse10 (and .cse0 .cse1 .cse12)) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse5 (= 0 ~systemActive~0)) (.cse6 (< 2 |old(~waterLevel~0)|)) (.cse11 (< ~methaneLevelCritical~0 1))) (and (or (and .cse0 .cse1 .cse2) .cse3 .cse4 .cse5 .cse6 (and .cse2 .cse7)) (or .cse8 .cse9 .cse10 .cse5 .cse6 .cse11) (or .cse8 .cse4 .cse9 .cse10 .cse5 .cse6) (or .cse3 (and .cse0 .cse2) .cse5 .cse6 .cse11)))) [2023-12-15 22:56:33,194 INFO L899 garLoopResultBuilder]: For program point L588-1(line 588) no Hoare annotation was computed. [2023-12-15 22:56:33,194 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 132 155) no Hoare annotation was computed. [2023-12-15 22:56:33,194 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 477) no Hoare annotation was computed. [2023-12-15 22:56:33,194 INFO L895 garLoopResultBuilder]: At program point L110(lines 63 111) the Hoare annotation is: false [2023-12-15 22:56:33,194 INFO L899 garLoopResultBuilder]: For program point L65(lines 64 109) no Hoare annotation was computed. [2023-12-15 22:56:33,194 INFO L899 garLoopResultBuilder]: For program point L94(lines 94 105) no Hoare annotation was computed. [2023-12-15 22:56:33,194 INFO L895 garLoopResultBuilder]: At program point L86(line 86) the Hoare annotation is: (let ((.cse2 (= ~methaneLevelCritical~0 0)) (.cse1 (= ~pumpRunning~0 0)) (.cse0 (= |ULTIMATE.start_main_~tmp~7#1| 1)) (.cse7 (<= 1 ~methaneLevelCritical~0)) (.cse3 (= 1 ~systemActive~0)) (.cse4 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse5 (<= ~waterLevel~0 2)) (.cse6 (= ~pumpRunning~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse0 .cse1 .cse7 .cse3 .cse4 .cse5) (and .cse0 .cse7 .cse3 .cse4 .cse5 .cse6))) [2023-12-15 22:56:33,194 INFO L895 garLoopResultBuilder]: At program point L107(lines 64 109) the Hoare annotation is: (let ((.cse5 (= ~pumpRunning~0 1)) (.cse6 (= ~methaneLevelCritical~0 0)) (.cse2 (<= ~waterLevel~0 1)) (.cse0 (= |ULTIMATE.start_main_~tmp~7#1| 1)) (.cse8 (= ~pumpRunning~0 0)) (.cse1 (<= 1 ~methaneLevelCritical~0)) (.cse3 (= 1 ~systemActive~0)) (.cse4 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse7 (<= ~waterLevel~0 2))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse6 .cse3 .cse4 .cse7 .cse5) (and .cse0 .cse8 .cse6 .cse2 .cse3 .cse4) (and .cse0 .cse8 .cse1 .cse3 .cse4 .cse7))) [2023-12-15 22:56:33,195 INFO L899 garLoopResultBuilder]: For program point L74(lines 74 80) no Hoare annotation was computed. [2023-12-15 22:56:33,195 INFO L899 garLoopResultBuilder]: For program point L74-1(lines 74 80) no Hoare annotation was computed. [2023-12-15 22:56:33,195 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-15 22:56:33,195 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-15 22:56:33,195 INFO L899 garLoopResultBuilder]: For program point L100(lines 100 104) no Hoare annotation was computed. [2023-12-15 22:56:33,195 INFO L895 garLoopResultBuilder]: At program point L100-2(lines 94 105) the Hoare annotation is: (let ((.cse2 (= ~methaneLevelCritical~0 0)) (.cse1 (= ~pumpRunning~0 0)) (.cse0 (= |ULTIMATE.start_main_~tmp~7#1| 1)) (.cse7 (<= 1 ~methaneLevelCritical~0)) (.cse3 (= 1 ~systemActive~0)) (.cse4 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse5 (<= ~waterLevel~0 2)) (.cse6 (= ~pumpRunning~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse0 .cse1 .cse7 .cse3 .cse4 .cse5) (and .cse0 .cse7 .cse3 .cse4 .cse5 .cse6))) [2023-12-15 22:56:33,195 INFO L899 garLoopResultBuilder]: For program point L567(lines 567 574) no Hoare annotation was computed. [2023-12-15 22:56:33,195 INFO L899 garLoopResultBuilder]: For program point L567-2(lines 567 574) no Hoare annotation was computed. [2023-12-15 22:56:33,195 INFO L899 garLoopResultBuilder]: For program point L84(lines 84 90) no Hoare annotation was computed. [2023-12-15 22:56:33,195 INFO L899 garLoopResultBuilder]: For program point L84-1(lines 84 90) no Hoare annotation was computed. [2023-12-15 22:56:33,195 INFO L899 garLoopResultBuilder]: For program point L113(lines 54 117) no Hoare annotation was computed. [2023-12-15 22:56:33,196 INFO L895 garLoopResultBuilder]: At program point L76(line 76) the Hoare annotation is: (let ((.cse5 (= ~pumpRunning~0 1)) (.cse6 (= ~methaneLevelCritical~0 0)) (.cse2 (<= ~waterLevel~0 1)) (.cse0 (= |ULTIMATE.start_main_~tmp~7#1| 1)) (.cse8 (= ~pumpRunning~0 0)) (.cse1 (<= 1 ~methaneLevelCritical~0)) (.cse3 (= 1 ~systemActive~0)) (.cse4 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse7 (<= ~waterLevel~0 2))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse6 .cse3 .cse4 .cse7 .cse5) (and .cse0 .cse8 .cse6 .cse2 .cse3 .cse4) (and .cse0 .cse8 .cse1 .cse3 .cse4 .cse7))) [2023-12-15 22:56:33,196 INFO L899 garLoopResultBuilder]: For program point L256(lines 256 262) no Hoare annotation was computed. [2023-12-15 22:56:33,196 INFO L895 garLoopResultBuilder]: At program point L254(line 254) the Hoare annotation is: (let ((.cse9 (= ~pumpRunning~0 0)) (.cse10 (= |old(~pumpRunning~0)| 0))) (let ((.cse0 (< 1 ~waterLevel~0)) (.cse6 (not (= ~methaneLevelCritical~0 0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse4 (< 2 ~waterLevel~0)) (.cse5 (not .cse10)) (.cse2 (= 0 ~systemActive~0)) (.cse7 (and .cse9 (<= 1 |processEnvironment__wrappee__highWaterSensor_~tmp~1#1|) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 0))) (.cse3 (< ~methaneLevelCritical~0 1)) (.cse8 (and .cse9 (<= ~waterLevel~0 1) .cse10))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse6 .cse2 .cse7 .cse8) (or .cse0 .cse6 .cse1 .cse2) (or .cse4 .cse5 .cse2 .cse7 .cse3 .cse8)))) [2023-12-15 22:56:33,196 INFO L899 garLoopResultBuilder]: For program point L256-2(lines 249 265) no Hoare annotation was computed. [2023-12-15 22:56:33,196 INFO L899 garLoopResultBuilder]: For program point L254-1(line 254) no Hoare annotation was computed. [2023-12-15 22:56:33,196 INFO L899 garLoopResultBuilder]: For program point L339(lines 339 343) no Hoare annotation was computed. [2023-12-15 22:56:33,196 INFO L895 garLoopResultBuilder]: At program point L178(line 178) the Hoare annotation is: (let ((.cse3 (< ~methaneLevelCritical~0 1)) (.cse0 (< 1 ~waterLevel~0)) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse4 (< 2 ~waterLevel~0)) (.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse7 (not (= ~methaneLevelCritical~0 0))) (.cse2 (= 0 ~systemActive~0)) (.cse6 (and (= ~pumpRunning~0 0) (<= ~waterLevel~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse2 .cse6 .cse3) (or .cse0 .cse7 .cse1 .cse2) (or .cse4 .cse5 .cse7 .cse2 .cse6))) [2023-12-15 22:56:33,196 INFO L899 garLoopResultBuilder]: For program point L339-2(lines 339 343) no Hoare annotation was computed. [2023-12-15 22:56:33,196 INFO L899 garLoopResultBuilder]: For program point L172(lines 172 180) no Hoare annotation was computed. [2023-12-15 22:56:33,196 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 164 188) the Hoare annotation is: (let ((.cse5 (< 2 ~waterLevel~0)) (.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse7 (= ~pumpRunning~0 0)) (.cse3 (< ~methaneLevelCritical~0 1)) (.cse0 (< 1 ~waterLevel~0)) (.cse8 (not (= ~methaneLevelCritical~0 0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (= 0 ~systemActive~0)) (.cse4 (= ~pumpRunning~0 1))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse6 .cse7 .cse8 .cse2) (or .cse5 .cse6 .cse7 .cse2 .cse3) (or .cse0 .cse8 .cse1 .cse2 .cse4))) [2023-12-15 22:56:33,196 INFO L899 garLoopResultBuilder]: For program point L168(lines 168 185) no Hoare annotation was computed. [2023-12-15 22:56:33,196 INFO L899 garLoopResultBuilder]: For program point L453(lines 453 459) no Hoare annotation was computed. [2023-12-15 22:56:33,196 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDry_returnLabel#1(lines 449 462) no Hoare annotation was computed. [2023-12-15 22:56:33,196 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 164 188) no Hoare annotation was computed. [2023-12-15 22:56:33,197 INFO L895 garLoopResultBuilder]: At program point L183(line 183) the Hoare annotation is: (let ((.cse3 (< ~methaneLevelCritical~0 1)) (.cse5 (< 2 ~waterLevel~0)) (.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (< 1 ~waterLevel~0)) (.cse7 (not (= ~methaneLevelCritical~0 0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (= 0 ~systemActive~0)) (.cse4 (= ~pumpRunning~0 1))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse6 .cse2 .cse3) (or .cse5 .cse6 .cse7 .cse2) (or .cse0 .cse7 .cse1 .cse2 .cse4))) [2023-12-15 22:56:33,197 INFO L899 garLoopResultBuilder]: For program point L183-1(lines 164 188) no Hoare annotation was computed. [2023-12-15 22:56:33,197 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 384 395) no Hoare annotation was computed. [2023-12-15 22:56:33,197 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 384 395) the Hoare annotation is: (let ((.cse1 (not (= ~pumpRunning~0 0))) (.cse0 (< 1 |old(~waterLevel~0)|)) (.cse6 (< ~methaneLevelCritical~0 1)) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse7 (not (= ~pumpRunning~0 1))) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse4 (= 0 ~systemActive~0)) (.cse5 (< 2 |old(~waterLevel~0)|))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse1 .cse3 .cse4 .cse5 .cse6) (or .cse0 .cse7 .cse3 .cse4 .cse6) (or .cse2 .cse7 .cse3 .cse4 .cse5))) [2023-12-15 22:56:33,197 INFO L899 garLoopResultBuilder]: For program point L388-1(lines 384 395) no Hoare annotation was computed. [2023-12-15 22:56:33,197 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 274 284) no Hoare annotation was computed. [2023-12-15 22:56:33,197 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 274 284) the Hoare annotation is: true [2023-12-15 22:56:33,197 INFO L902 garLoopResultBuilder]: At program point L279(line 279) the Hoare annotation is: true [2023-12-15 22:56:33,197 INFO L899 garLoopResultBuilder]: For program point L279-1(line 279) no Hoare annotation was computed. [2023-12-15 22:56:33,199 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:56:33,200 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 22:56:33,225 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 10:56:33 BoogieIcfgContainer [2023-12-15 22:56:33,225 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 22:56:33,225 INFO L158 Benchmark]: Toolchain (without parser) took 10281.22ms. Allocated memory was 256.9MB in the beginning and 386.9MB in the end (delta: 130.0MB). Free memory was 201.3MB in the beginning and 341.1MB in the end (delta: -139.8MB). Peak memory consumption was 208.7MB. Max. memory is 8.0GB. [2023-12-15 22:56:33,225 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 166.7MB. Free memory is still 116.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 22:56:33,226 INFO L158 Benchmark]: CACSL2BoogieTranslator took 399.48ms. Allocated memory is still 256.9MB. Free memory was 200.9MB in the beginning and 180.9MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-12-15 22:56:33,226 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.84ms. Allocated memory is still 256.9MB. Free memory was 180.9MB in the beginning and 178.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-15 22:56:33,226 INFO L158 Benchmark]: Boogie Preprocessor took 67.63ms. Allocated memory is still 256.9MB. Free memory was 178.6MB in the beginning and 176.1MB in the end (delta: 2.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-15 22:56:33,226 INFO L158 Benchmark]: RCFGBuilder took 371.93ms. Allocated memory is still 256.9MB. Free memory was 176.1MB in the beginning and 152.6MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2023-12-15 22:56:33,226 INFO L158 Benchmark]: TraceAbstraction took 9392.98ms. Allocated memory was 256.9MB in the beginning and 386.9MB in the end (delta: 130.0MB). Free memory was 152.0MB in the beginning and 341.1MB in the end (delta: -189.1MB). Peak memory consumption was 159.4MB. Max. memory is 8.0GB. [2023-12-15 22:56:33,227 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43ms. Allocated memory is still 166.7MB. Free memory is still 116.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 399.48ms. Allocated memory is still 256.9MB. Free memory was 200.9MB in the beginning and 180.9MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 44.84ms. Allocated memory is still 256.9MB. Free memory was 180.9MB in the beginning and 178.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 67.63ms. Allocated memory is still 256.9MB. Free memory was 178.6MB in the beginning and 176.1MB in the end (delta: 2.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 371.93ms. Allocated memory is still 256.9MB. Free memory was 176.1MB in the beginning and 152.6MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * TraceAbstraction took 9392.98ms. Allocated memory was 256.9MB in the beginning and 386.9MB in the end (delta: 130.0MB). Free memory was 152.0MB in the beginning and 341.1MB in the end (delta: -189.1MB). Peak memory consumption was 159.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [49] - GenericResultAtLocation [Line: 118]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [118] - GenericResultAtLocation [Line: 368]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [368] - GenericResultAtLocation [Line: 472]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [472] - GenericResultAtLocation [Line: 481]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [481] - GenericResultAtLocation [Line: 580]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [580] - GenericResultAtLocation [Line: 614]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [614] - GenericResultAtLocation [Line: 649]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [649] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 477]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 89 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.3s, OverallIterations: 12, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3190 SdHoareTripleChecker+Valid, 2.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3149 mSDsluCounter, 2838 SdHoareTripleChecker+Invalid, 2.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2047 mSDsCounter, 1411 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4315 IncrementalHoareTripleChecker+Invalid, 5726 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1411 mSolverCounterUnsat, 791 mSDtfsCounter, 4315 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 552 GetRequests, 361 SyntacticMatches, 6 SemanticMatches, 185 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2113 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=770occurred in iteration=10, InterpolantAutomatonStates: 168, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 12 MinimizatonAttempts, 151 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 30 LocationsWithAnnotation, 1586 PreInvPairs, 1752 NumberOfFragments, 1597 HoareAnnotationTreeSize, 1586 FormulaSimplifications, 2296 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 30 FormulaSimplificationsInter, 6185 FormulaSimplificationTreeSizeReductionInter, 1.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 650 NumberOfCodeBlocks, 650 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 721 ConstructedInterpolants, 0 QuantifiedInterpolants, 1568 SizeOfPredicates, 5 NumberOfNonLiveVariables, 542 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 15 InterpolantComputations, 11 PerfectInterpolantSequences, 74/104 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 63]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 493]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: (((((((((tmp == 1) && (1 <= methaneLevelCritical)) && (waterLevel <= 1)) && (1 == systemActive)) && (splverifierCounter == 0)) && (pumpRunning == 1)) || ((((((tmp == 1) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel <= 2)) && (pumpRunning == 1))) || ((((((tmp == 1) && (pumpRunning == 0)) && (methaneLevelCritical == 0)) && (waterLevel <= 1)) && (1 == systemActive)) && (splverifierCounter == 0))) || ((((((tmp == 1) && (pumpRunning == 0)) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel <= 2))) RESULT: Ultimate proved your program to be correct! [2023-12-15 22:56:33,247 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...