/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_spec2_product48.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 23:38:18,330 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 23:38:18,391 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-19 23:38:18,396 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 23:38:18,396 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 23:38:18,417 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 23:38:18,418 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 23:38:18,418 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 23:38:18,419 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 23:38:18,421 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 23:38:18,422 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 23:38:18,422 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 23:38:18,422 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 23:38:18,423 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 23:38:18,423 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 23:38:18,423 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 23:38:18,423 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 23:38:18,423 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 23:38:18,423 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 23:38:18,424 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 23:38:18,424 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 23:38:18,425 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 23:38:18,425 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 23:38:18,426 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 23:38:18,426 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 23:38:18,426 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 23:38:18,426 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 23:38:18,426 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 23:38:18,426 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 23:38:18,426 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 23:38:18,427 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 23:38:18,427 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 23:38:18,427 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 23:38:18,428 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 23:38:18,428 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 23:38:18,428 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 23:38:18,428 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 23:38:18,428 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 23:38:18,428 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 23:38:18,428 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 23:38:18,428 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 23:38:18,432 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 23:38:18,432 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 23:38:18,432 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 23:38:18,609 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 23:38:18,627 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 23:38:18,628 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 23:38:18,629 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 23:38:18,630 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 23:38:18,630 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product48.cil.c [2023-12-19 23:38:19,748 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 23:38:19,956 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 23:38:19,957 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product48.cil.c [2023-12-19 23:38:19,965 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95e55cf2c/5f3cf83d49b84b32b5192ff40569f941/FLAG7e847b9e6 [2023-12-19 23:38:19,975 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95e55cf2c/5f3cf83d49b84b32b5192ff40569f941 [2023-12-19 23:38:19,977 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 23:38:19,977 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 23:38:19,978 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 23:38:19,979 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 23:38:19,983 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 23:38:19,984 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 11:38:19" (1/1) ... [2023-12-19 23:38:19,985 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15c90044 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:19, skipping insertion in model container [2023-12-19 23:38:19,985 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 11:38:19" (1/1) ... [2023-12-19 23:38:20,035 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 23:38:20,268 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_spec2_product48.cil.c[17766,17779] [2023-12-19 23:38:20,283 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 23:38:20,303 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 23:38:20,312 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] [2023-12-19 23:38:20,314 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [150] [2023-12-19 23:38:20,315 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [188] [2023-12-19 23:38:20,315 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [261] [2023-12-19 23:38:20,315 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [484] [2023-12-19 23:38:20,315 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [524] [2023-12-19 23:38:20,315 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [890] [2023-12-19 23:38:20,316 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [899] [2023-12-19 23:38:20,397 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_spec2_product48.cil.c[17766,17779] [2023-12-19 23:38:20,400 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 23:38:20,422 INFO L206 MainTranslator]: Completed translation [2023-12-19 23:38:20,423 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:20 WrapperNode [2023-12-19 23:38:20,423 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 23:38:20,424 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 23:38:20,424 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 23:38:20,424 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 23:38:20,428 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:20" (1/1) ... [2023-12-19 23:38:20,450 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:20" (1/1) ... [2023-12-19 23:38:20,466 INFO L138 Inliner]: procedures = 57, calls = 103, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 199 [2023-12-19 23:38:20,467 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 23:38:20,468 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 23:38:20,468 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 23:38:20,468 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 23:38:20,478 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:20" (1/1) ... [2023-12-19 23:38:20,478 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:20" (1/1) ... [2023-12-19 23:38:20,480 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:20" (1/1) ... [2023-12-19 23:38:20,495 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]. [2023-12-19 23:38:20,496 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:20" (1/1) ... [2023-12-19 23:38:20,496 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:20" (1/1) ... [2023-12-19 23:38:20,506 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:20" (1/1) ... [2023-12-19 23:38:20,509 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:20" (1/1) ... [2023-12-19 23:38:20,510 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:20" (1/1) ... [2023-12-19 23:38:20,510 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:20" (1/1) ... [2023-12-19 23:38:20,512 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 23:38:20,512 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 23:38:20,513 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 23:38:20,513 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 23:38:20,513 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:20" (1/1) ... [2023-12-19 23:38:20,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 23:38:20,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:38:20,585 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-19 23:38:20,594 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-19 23:38:20,611 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 23:38:20,612 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-12-19 23:38:20,612 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-12-19 23:38:20,612 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-19 23:38:20,612 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-19 23:38:20,612 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-19 23:38:20,612 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-19 23:38:20,612 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-12-19 23:38:20,612 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-12-19 23:38:20,612 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-12-19 23:38:20,612 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-12-19 23:38:20,612 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2023-12-19 23:38:20,612 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2023-12-19 23:38:20,612 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-12-19 23:38:20,613 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-12-19 23:38:20,613 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-12-19 23:38:20,613 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-12-19 23:38:20,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 23:38:20,613 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-12-19 23:38:20,614 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-12-19 23:38:20,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 23:38:20,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 23:38:20,692 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 23:38:20,696 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 23:38:20,916 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 23:38:20,995 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 23:38:20,996 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-19 23:38:20,996 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 11:38:20 BoogieIcfgContainer [2023-12-19 23:38:20,996 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 23:38:20,998 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 23:38:20,998 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 23:38:21,001 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 23:38:21,002 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 11:38:19" (1/3) ... [2023-12-19 23:38:21,002 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1052a2a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 11:38:21, skipping insertion in model container [2023-12-19 23:38:21,002 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:20" (2/3) ... [2023-12-19 23:38:21,003 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1052a2a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 11:38:21, skipping insertion in model container [2023-12-19 23:38:21,003 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 11:38:20" (3/3) ... [2023-12-19 23:38:21,004 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product48.cil.c [2023-12-19 23:38:21,020 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 23:38:21,021 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 23:38:21,057 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 23:38:21,061 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;@1fb13d69, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 23:38:21,061 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 23:38:21,081 INFO L276 IsEmpty]: Start isEmpty. Operand has 82 states, 55 states have (on average 1.509090909090909) internal successors, (83), 64 states have internal predecessors, (83), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-19 23:38:21,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-19 23:38:21,099 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:38:21,100 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:38:21,101 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:38:21,106 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:38:21,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1092678025, now seen corresponding path program 1 times [2023-12-19 23:38:21,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:38:21,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237930170] [2023-12-19 23:38:21,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:38:21,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:38:21,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:21,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 23:38:21,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:21,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 23:38:21,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:38:21,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237930170] [2023-12-19 23:38:21,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237930170] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:38:21,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:38:21,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 23:38:21,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153313567] [2023-12-19 23:38:21,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:38:21,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-19 23:38:21,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:38:21,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-19 23:38:21,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 23:38:21,390 INFO L87 Difference]: Start difference. First operand has 82 states, 55 states have (on average 1.509090909090909) internal successors, (83), 64 states have internal predecessors, (83), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) 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) [2023-12-19 23:38:21,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:38:21,438 INFO L93 Difference]: Finished difference Result 162 states and 231 transitions. [2023-12-19 23:38:21,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-19 23:38:21,442 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 [2023-12-19 23:38:21,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:38:21,450 INFO L225 Difference]: With dead ends: 162 [2023-12-19 23:38:21,451 INFO L226 Difference]: Without dead ends: 77 [2023-12-19 23:38:21,454 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 [2023-12-19 23:38:21,457 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:38:21,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 95 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:38:21,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2023-12-19 23:38:21,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2023-12-19 23:38:21,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 52 states have (on average 1.4038461538461537) internal successors, (73), 60 states have internal predecessors, (73), 16 states have call successors, (16), 9 states have call predecessors, (16), 8 states have return successors, (15), 12 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-19 23:38:21,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 104 transitions. [2023-12-19 23:38:21,520 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 104 transitions. Word has length 17 [2023-12-19 23:38:21,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:38:21,521 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 104 transitions. [2023-12-19 23:38:21,521 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) [2023-12-19 23:38:21,524 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 104 transitions. [2023-12-19 23:38:21,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-19 23:38:21,526 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:38:21,526 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:38:21,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-19 23:38:21,527 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:38:21,527 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:38:21,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1910496021, now seen corresponding path program 1 times [2023-12-19 23:38:21,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:38:21,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362952898] [2023-12-19 23:38:21,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:38:21,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:38:21,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:21,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 23:38:21,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:21,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 23:38:21,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:38:21,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362952898] [2023-12-19 23:38:21,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362952898] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:38:21,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:38:21,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 23:38:21,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112744913] [2023-12-19 23:38:21,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:38:21,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 23:38:21,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:38:21,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 23:38:21,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 23:38:21,654 INFO L87 Difference]: Start difference. First operand 77 states and 104 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) [2023-12-19 23:38:21,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:38:21,706 INFO L93 Difference]: Finished difference Result 124 states and 166 transitions. [2023-12-19 23:38:21,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 23:38:21,708 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 [2023-12-19 23:38:21,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:38:21,709 INFO L225 Difference]: With dead ends: 124 [2023-12-19 23:38:21,709 INFO L226 Difference]: Without dead ends: 69 [2023-12-19 23:38:21,710 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 [2023-12-19 23:38:21,711 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 14 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:38:21,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 146 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:38:21,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2023-12-19 23:38:21,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2023-12-19 23:38:21,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 47 states have (on average 1.425531914893617) internal successors, (67), 55 states have internal predecessors, (67), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-19 23:38:21,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 93 transitions. [2023-12-19 23:38:21,727 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 93 transitions. Word has length 18 [2023-12-19 23:38:21,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:38:21,727 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 93 transitions. [2023-12-19 23:38:21,727 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) [2023-12-19 23:38:21,728 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 93 transitions. [2023-12-19 23:38:21,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-19 23:38:21,729 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:38:21,729 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] [2023-12-19 23:38:21,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-19 23:38:21,729 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:38:21,730 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:38:21,730 INFO L85 PathProgramCache]: Analyzing trace with hash -241123912, now seen corresponding path program 1 times [2023-12-19 23:38:21,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:38:21,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627450420] [2023-12-19 23:38:21,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:38:21,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:38:21,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:21,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 23:38:21,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:21,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 23:38:21,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:38:21,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627450420] [2023-12-19 23:38:21,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627450420] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:38:21,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:38:21,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 23:38:21,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941106779] [2023-12-19 23:38:21,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:38:21,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 23:38:21,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:38:21,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 23:38:21,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 23:38:21,883 INFO L87 Difference]: Start difference. First operand 69 states and 93 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) [2023-12-19 23:38:21,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:38:21,974 INFO L93 Difference]: Finished difference Result 174 states and 236 transitions. [2023-12-19 23:38:21,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 23:38:21,975 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 [2023-12-19 23:38:21,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:38:21,976 INFO L225 Difference]: With dead ends: 174 [2023-12-19 23:38:21,976 INFO L226 Difference]: Without dead ends: 107 [2023-12-19 23:38:21,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-19 23:38:21,977 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 116 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:38:21,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 202 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 23:38:21,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2023-12-19 23:38:21,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 104. [2023-12-19 23:38:21,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 72 states have (on average 1.4444444444444444) internal successors, (104), 83 states have internal predecessors, (104), 18 states have call successors, (18), 13 states have call predecessors, (18), 13 states have return successors, (19), 14 states have call predecessors, (19), 18 states have call successors, (19) [2023-12-19 23:38:21,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 141 transitions. [2023-12-19 23:38:21,989 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 141 transitions. Word has length 21 [2023-12-19 23:38:21,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:38:21,989 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 141 transitions. [2023-12-19 23:38:21,989 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) [2023-12-19 23:38:21,989 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 141 transitions. [2023-12-19 23:38:21,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-19 23:38:21,990 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:38:21,990 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] [2023-12-19 23:38:21,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-19 23:38:21,990 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:38:21,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:38:21,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1369567555, now seen corresponding path program 1 times [2023-12-19 23:38:21,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:38:21,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150655633] [2023-12-19 23:38:21,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:38:21,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:38:22,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:22,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 23:38:22,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:22,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 23:38:22,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:38:22,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150655633] [2023-12-19 23:38:22,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150655633] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:38:22,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:38:22,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 23:38:22,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086829211] [2023-12-19 23:38:22,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:38:22,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 23:38:22,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:38:22,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 23:38:22,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 23:38:22,095 INFO L87 Difference]: Start difference. First operand 104 states and 141 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 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) [2023-12-19 23:38:22,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:38:22,177 INFO L93 Difference]: Finished difference Result 245 states and 337 transitions. [2023-12-19 23:38:22,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 23:38:22,178 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 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 24 [2023-12-19 23:38:22,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:38:22,180 INFO L225 Difference]: With dead ends: 245 [2023-12-19 23:38:22,180 INFO L226 Difference]: Without dead ends: 143 [2023-12-19 23:38:22,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-19 23:38:22,182 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 54 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:38:22,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 208 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 23:38:22,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2023-12-19 23:38:22,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 139. [2023-12-19 23:38:22,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 97 states have (on average 1.3505154639175259) internal successors, (131), 108 states have internal predecessors, (131), 22 states have call successors, (22), 19 states have call predecessors, (22), 19 states have return successors, (28), 21 states have call predecessors, (28), 22 states have call successors, (28) [2023-12-19 23:38:22,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 181 transitions. [2023-12-19 23:38:22,195 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 181 transitions. Word has length 24 [2023-12-19 23:38:22,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:38:22,195 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 181 transitions. [2023-12-19 23:38:22,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 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) [2023-12-19 23:38:22,195 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 181 transitions. [2023-12-19 23:38:22,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-12-19 23:38:22,196 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:38:22,196 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] [2023-12-19 23:38:22,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-19 23:38:22,197 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:38:22,197 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:38:22,197 INFO L85 PathProgramCache]: Analyzing trace with hash -846641012, now seen corresponding path program 1 times [2023-12-19 23:38:22,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:38:22,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309500181] [2023-12-19 23:38:22,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:38:22,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:38:22,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:22,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 23:38:22,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:22,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 23:38:22,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:22,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 23:38:22,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:22,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 23:38:22,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:22,259 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-19 23:38:22,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:38:22,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309500181] [2023-12-19 23:38:22,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309500181] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:38:22,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:38:22,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 23:38:22,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248767888] [2023-12-19 23:38:22,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:38:22,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 23:38:22,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:38:22,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 23:38:22,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 23:38:22,261 INFO L87 Difference]: Start difference. First operand 139 states and 181 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 3 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) [2023-12-19 23:38:22,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:38:22,400 INFO L93 Difference]: Finished difference Result 299 states and 388 transitions. [2023-12-19 23:38:22,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 23:38:22,400 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 3 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 46 [2023-12-19 23:38:22,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:38:22,404 INFO L225 Difference]: With dead ends: 299 [2023-12-19 23:38:22,405 INFO L226 Difference]: Without dead ends: 162 [2023-12-19 23:38:22,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-19 23:38:22,411 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 84 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:38:22,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 171 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 23:38:22,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2023-12-19 23:38:22,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 158. [2023-12-19 23:38:22,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 111 states have (on average 1.3333333333333333) internal successors, (148), 122 states have internal predecessors, (148), 24 states have call successors, (24), 19 states have call predecessors, (24), 22 states have return successors, (31), 25 states have call predecessors, (31), 24 states have call successors, (31) [2023-12-19 23:38:22,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 203 transitions. [2023-12-19 23:38:22,424 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 203 transitions. Word has length 46 [2023-12-19 23:38:22,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:38:22,425 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 203 transitions. [2023-12-19 23:38:22,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 3 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) [2023-12-19 23:38:22,425 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 203 transitions. [2023-12-19 23:38:22,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-19 23:38:22,426 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:38:22,426 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] [2023-12-19 23:38:22,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-19 23:38:22,426 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:38:22,427 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:38:22,427 INFO L85 PathProgramCache]: Analyzing trace with hash -938034873, now seen corresponding path program 1 times [2023-12-19 23:38:22,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:38:22,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098605528] [2023-12-19 23:38:22,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:38:22,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:38:22,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:22,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 23:38:22,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:22,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 23:38:22,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:22,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 23:38:22,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:22,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 23:38:22,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:22,514 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-19 23:38:22,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:38:22,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098605528] [2023-12-19 23:38:22,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098605528] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:38:22,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:38:22,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 23:38:22,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421799922] [2023-12-19 23:38:22,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:38:22,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 23:38:22,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:38:22,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 23:38:22,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 23:38:22,516 INFO L87 Difference]: Start difference. First operand 158 states and 203 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 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) [2023-12-19 23:38:22,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:38:22,679 INFO L93 Difference]: Finished difference Result 275 states and 358 transitions. [2023-12-19 23:38:22,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 23:38:22,679 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 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 43 [2023-12-19 23:38:22,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:38:22,683 INFO L225 Difference]: With dead ends: 275 [2023-12-19 23:38:22,683 INFO L226 Difference]: Without dead ends: 273 [2023-12-19 23:38:22,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-19 23:38:22,693 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 146 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:38:22,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 141 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 23:38:22,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2023-12-19 23:38:22,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 254. [2023-12-19 23:38:22,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 176 states have (on average 1.3238636363636365) internal successors, (233), 194 states have internal predecessors, (233), 41 states have call successors, (41), 31 states have call predecessors, (41), 36 states have return successors, (59), 40 states have call predecessors, (59), 41 states have call successors, (59) [2023-12-19 23:38:22,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 333 transitions. [2023-12-19 23:38:22,747 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 333 transitions. Word has length 43 [2023-12-19 23:38:22,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:38:22,748 INFO L495 AbstractCegarLoop]: Abstraction has 254 states and 333 transitions. [2023-12-19 23:38:22,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 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) [2023-12-19 23:38:22,748 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 333 transitions. [2023-12-19 23:38:22,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-19 23:38:22,751 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:38:22,751 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 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] [2023-12-19 23:38:22,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-19 23:38:22,751 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:38:22,752 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:38:22,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1094443892, now seen corresponding path program 1 times [2023-12-19 23:38:22,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:38:22,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827573645] [2023-12-19 23:38:22,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:38:22,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:38:22,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:22,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 23:38:22,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:22,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-19 23:38:22,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:23,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 23:38:23,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:23,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 23:38:23,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:23,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-19 23:38:23,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:23,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 23:38:23,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:23,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 23:38:23,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:23,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-19 23:38:23,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:23,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:38:23,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:23,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-19 23:38:23,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:23,083 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 16 proven. 8 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-19 23:38:23,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:38:23,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827573645] [2023-12-19 23:38:23,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827573645] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 23:38:23,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [502884050] [2023-12-19 23:38:23,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:38:23,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:38:23,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:38:23,091 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 23:38:23,097 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-19 23:38:23,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:23,209 INFO L262 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-19 23:38:23,218 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 23:38:23,278 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-19 23:38:23,278 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 23:38:23,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [502884050] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:38:23,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 23:38:23,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2023-12-19 23:38:23,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587230962] [2023-12-19 23:38:23,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:38:23,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 23:38:23,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:38:23,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 23:38:23,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2023-12-19 23:38:23,280 INFO L87 Difference]: Start difference. First operand 254 states and 333 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 23:38:23,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:38:23,327 INFO L93 Difference]: Finished difference Result 514 states and 693 transitions. [2023-12-19 23:38:23,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 23:38:23,328 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 84 [2023-12-19 23:38:23,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:38:23,330 INFO L225 Difference]: With dead ends: 514 [2023-12-19 23:38:23,330 INFO L226 Difference]: Without dead ends: 262 [2023-12-19 23:38:23,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2023-12-19 23:38:23,333 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 2 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:38:23,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 237 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:38:23,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2023-12-19 23:38:23,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 258. [2023-12-19 23:38:23,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 180 states have (on average 1.3166666666666667) internal successors, (237), 198 states have internal predecessors, (237), 41 states have call successors, (41), 31 states have call predecessors, (41), 36 states have return successors, (59), 40 states have call predecessors, (59), 41 states have call successors, (59) [2023-12-19 23:38:23,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 337 transitions. [2023-12-19 23:38:23,369 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 337 transitions. Word has length 84 [2023-12-19 23:38:23,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:38:23,377 INFO L495 AbstractCegarLoop]: Abstraction has 258 states and 337 transitions. [2023-12-19 23:38:23,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 23:38:23,377 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 337 transitions. [2023-12-19 23:38:23,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-19 23:38:23,379 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:38:23,379 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 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] [2023-12-19 23:38:23,385 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-19 23:38:23,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:38:23,584 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:38:23,584 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:38:23,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1826411318, now seen corresponding path program 1 times [2023-12-19 23:38:23,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:38:23,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937524114] [2023-12-19 23:38:23,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:38:23,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:38:23,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:23,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 23:38:23,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:23,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-19 23:38:23,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:23,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 23:38:23,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:23,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 23:38:23,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:23,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-19 23:38:23,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:23,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 23:38:23,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:23,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 23:38:23,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:23,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-19 23:38:23,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:23,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:38:23,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:23,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-19 23:38:23,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:23,840 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-19 23:38:23,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:38:23,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937524114] [2023-12-19 23:38:23,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937524114] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 23:38:23,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1444523949] [2023-12-19 23:38:23,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:38:23,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:38:23,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:38:23,848 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 23:38:23,849 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-19 23:38:23,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:23,985 INFO L262 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-19 23:38:23,989 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 23:38:24,011 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-19 23:38:24,011 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 23:38:24,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1444523949] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:38:24,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 23:38:24,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [11] total 11 [2023-12-19 23:38:24,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108934104] [2023-12-19 23:38:24,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:38:24,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 23:38:24,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:38:24,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 23:38:24,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-12-19 23:38:24,013 INFO L87 Difference]: Start difference. First operand 258 states and 337 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 23:38:24,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:38:24,073 INFO L93 Difference]: Finished difference Result 528 states and 709 transitions. [2023-12-19 23:38:24,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 23:38:24,073 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 84 [2023-12-19 23:38:24,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:38:24,076 INFO L225 Difference]: With dead ends: 528 [2023-12-19 23:38:24,076 INFO L226 Difference]: Without dead ends: 272 [2023-12-19 23:38:24,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-19 23:38:24,078 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 6 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:38:24,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 243 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:38:24,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2023-12-19 23:38:24,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 262. [2023-12-19 23:38:24,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 184 states have (on average 1.309782608695652) internal successors, (241), 202 states have internal predecessors, (241), 41 states have call successors, (41), 31 states have call predecessors, (41), 36 states have return successors, (59), 40 states have call predecessors, (59), 41 states have call successors, (59) [2023-12-19 23:38:24,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 341 transitions. [2023-12-19 23:38:24,103 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 341 transitions. Word has length 84 [2023-12-19 23:38:24,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:38:24,103 INFO L495 AbstractCegarLoop]: Abstraction has 262 states and 341 transitions. [2023-12-19 23:38:24,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 23:38:24,103 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 341 transitions. [2023-12-19 23:38:24,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-19 23:38:24,105 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:38:24,105 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 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] [2023-12-19 23:38:24,134 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-19 23:38:24,310 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,SelfDestructingSolverStorable7 [2023-12-19 23:38:24,310 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:38:24,310 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:38:24,310 INFO L85 PathProgramCache]: Analyzing trace with hash -872471160, now seen corresponding path program 1 times [2023-12-19 23:38:24,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:38:24,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575324604] [2023-12-19 23:38:24,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:38:24,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:38:24,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:24,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 23:38:24,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:24,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-19 23:38:24,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:24,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 23:38:24,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:24,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 23:38:24,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:24,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-19 23:38:24,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:24,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 23:38:24,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:24,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 23:38:24,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:24,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-19 23:38:24,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:24,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:38:24,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:24,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-19 23:38:24,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:24,547 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 16 proven. 8 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-19 23:38:24,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:38:24,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575324604] [2023-12-19 23:38:24,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575324604] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 23:38:24,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1310308402] [2023-12-19 23:38:24,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:38:24,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:38:24,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:38:24,548 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 23:38:24,551 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-19 23:38:24,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:24,617 INFO L262 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-19 23:38:24,626 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 23:38:24,735 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-19 23:38:24,735 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 23:38:24,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1310308402] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:38:24,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 23:38:24,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [13] total 17 [2023-12-19 23:38:24,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505056102] [2023-12-19 23:38:24,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:38:24,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 23:38:24,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:38:24,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 23:38:24,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2023-12-19 23:38:24,737 INFO L87 Difference]: Start difference. First operand 262 states and 341 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 5 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (10), 3 states have call predecessors, (10), 5 states have call successors, (10) [2023-12-19 23:38:24,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:38:24,979 INFO L93 Difference]: Finished difference Result 838 states and 1170 transitions. [2023-12-19 23:38:24,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 23:38:24,980 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 5 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (10), 3 states have call predecessors, (10), 5 states have call successors, (10) Word has length 84 [2023-12-19 23:38:24,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:38:24,982 INFO L225 Difference]: With dead ends: 838 [2023-12-19 23:38:24,982 INFO L226 Difference]: Without dead ends: 578 [2023-12-19 23:38:24,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2023-12-19 23:38:24,983 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 199 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 23:38:24,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 212 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 23:38:24,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2023-12-19 23:38:25,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 547. [2023-12-19 23:38:25,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 388 states have (on average 1.306701030927835) internal successors, (507), 417 states have internal predecessors, (507), 85 states have call successors, (85), 76 states have call predecessors, (85), 73 states have return successors, (144), 79 states have call predecessors, (144), 85 states have call successors, (144) [2023-12-19 23:38:25,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 736 transitions. [2023-12-19 23:38:25,013 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 736 transitions. Word has length 84 [2023-12-19 23:38:25,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:38:25,013 INFO L495 AbstractCegarLoop]: Abstraction has 547 states and 736 transitions. [2023-12-19 23:38:25,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 5 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (10), 3 states have call predecessors, (10), 5 states have call successors, (10) [2023-12-19 23:38:25,013 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 736 transitions. [2023-12-19 23:38:25,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-19 23:38:25,015 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:38:25,015 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 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] [2023-12-19 23:38:25,044 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-19 23:38:25,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:38:25,223 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:38:25,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:38:25,223 INFO L85 PathProgramCache]: Analyzing trace with hash 755791790, now seen corresponding path program 1 times [2023-12-19 23:38:25,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:38:25,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872590342] [2023-12-19 23:38:25,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:38:25,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:38:25,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:25,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 23:38:25,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:25,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 23:38:25,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:25,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-19 23:38:25,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:25,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 23:38:25,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:25,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 23:38:25,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:25,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-19 23:38:25,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:25,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-19 23:38:25,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:25,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 23:38:25,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:25,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-19 23:38:25,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:25,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:38:25,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:25,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 23:38:25,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:25,457 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 16 proven. 8 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-19 23:38:25,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:38:25,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872590342] [2023-12-19 23:38:25,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872590342] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 23:38:25,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [750731103] [2023-12-19 23:38:25,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:38:25,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:38:25,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:38:25,458 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 23:38:25,482 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-19 23:38:25,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:25,524 INFO L262 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-19 23:38:25,529 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 23:38:25,614 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-19 23:38:25,614 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 23:38:25,705 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-19 23:38:25,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [750731103] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-19 23:38:25,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-19 23:38:25,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [13, 5] total 15 [2023-12-19 23:38:25,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838275657] [2023-12-19 23:38:25,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:38:25,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 23:38:25,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:38:25,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 23:38:25,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2023-12-19 23:38:25,707 INFO L87 Difference]: Start difference. First operand 547 states and 736 transitions. Second operand has 6 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-19 23:38:25,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:38:25,826 INFO L93 Difference]: Finished difference Result 1589 states and 2196 transitions. [2023-12-19 23:38:25,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 23:38:25,826 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 88 [2023-12-19 23:38:25,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:38:25,833 INFO L225 Difference]: With dead ends: 1589 [2023-12-19 23:38:25,833 INFO L226 Difference]: Without dead ends: 1044 [2023-12-19 23:38:25,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 195 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2023-12-19 23:38:25,836 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 61 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:38:25,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 364 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 23:38:25,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2023-12-19 23:38:25,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 905. [2023-12-19 23:38:25,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 637 states have (on average 1.2762951334379906) internal successors, (813), 689 states have internal predecessors, (813), 142 states have call successors, (142), 127 states have call predecessors, (142), 125 states have return successors, (238), 133 states have call predecessors, (238), 142 states have call successors, (238) [2023-12-19 23:38:25,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1193 transitions. [2023-12-19 23:38:25,915 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1193 transitions. Word has length 88 [2023-12-19 23:38:25,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:38:25,915 INFO L495 AbstractCegarLoop]: Abstraction has 905 states and 1193 transitions. [2023-12-19 23:38:25,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-19 23:38:25,915 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1193 transitions. [2023-12-19 23:38:25,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-19 23:38:25,919 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:38:25,919 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 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] [2023-12-19 23:38:25,926 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-19 23:38:26,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:38:26,125 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:38:26,126 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:38:26,127 INFO L85 PathProgramCache]: Analyzing trace with hash 805021234, now seen corresponding path program 1 times [2023-12-19 23:38:26,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:38:26,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608735801] [2023-12-19 23:38:26,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:38:26,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:38:26,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:26,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 23:38:26,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:26,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-19 23:38:26,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:26,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-19 23:38:26,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:26,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-19 23:38:26,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:26,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 23:38:26,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:26,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 23:38:26,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:26,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-19 23:38:26,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:26,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-19 23:38:26,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:26,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 23:38:26,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:26,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 23:38:26,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:26,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:38:26,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:26,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-19 23:38:26,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:26,407 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 16 proven. 8 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-19 23:38:26,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:38:26,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608735801] [2023-12-19 23:38:26,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608735801] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 23:38:26,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1640130245] [2023-12-19 23:38:26,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:38:26,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:38:26,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:38:26,417 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 23:38:26,444 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-19 23:38:26,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:26,514 INFO L262 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-19 23:38:26,518 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 23:38:26,646 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-19 23:38:26,647 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 23:38:26,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1640130245] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:38:26,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 23:38:26,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [17] total 22 [2023-12-19 23:38:26,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888510185] [2023-12-19 23:38:26,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:38:26,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-19 23:38:26,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:38:26,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-19 23:38:26,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2023-12-19 23:38:26,651 INFO L87 Difference]: Start difference. First operand 905 states and 1193 transitions. Second operand has 8 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (12), 3 states have call predecessors, (12), 5 states have return successors, (11), 5 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-19 23:38:26,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:38:26,861 INFO L93 Difference]: Finished difference Result 1764 states and 2338 transitions. [2023-12-19 23:38:26,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 23:38:26,861 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (12), 3 states have call predecessors, (12), 5 states have return successors, (11), 5 states have call predecessors, (11), 3 states have call successors, (11) Word has length 92 [2023-12-19 23:38:26,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:38:26,867 INFO L225 Difference]: With dead ends: 1764 [2023-12-19 23:38:26,867 INFO L226 Difference]: Without dead ends: 861 [2023-12-19 23:38:26,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2023-12-19 23:38:26,884 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 62 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 764 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:38:26,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 764 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 23:38:26,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2023-12-19 23:38:26,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 849. [2023-12-19 23:38:26,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 849 states, 600 states have (on average 1.2583333333333333) internal successors, (755), 644 states have internal predecessors, (755), 135 states have call successors, (135), 120 states have call predecessors, (135), 113 states have return successors, (201), 124 states have call predecessors, (201), 135 states have call successors, (201) [2023-12-19 23:38:26,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 849 states to 849 states and 1091 transitions. [2023-12-19 23:38:26,926 INFO L78 Accepts]: Start accepts. Automaton has 849 states and 1091 transitions. Word has length 92 [2023-12-19 23:38:26,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:38:26,927 INFO L495 AbstractCegarLoop]: Abstraction has 849 states and 1091 transitions. [2023-12-19 23:38:26,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (12), 3 states have call predecessors, (12), 5 states have return successors, (11), 5 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-19 23:38:26,927 INFO L276 IsEmpty]: Start isEmpty. Operand 849 states and 1091 transitions. [2023-12-19 23:38:26,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-19 23:38:26,930 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:38:26,930 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-19 23:38:26,938 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-19 23:38:27,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-12-19 23:38:27,136 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:38:27,136 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:38:27,136 INFO L85 PathProgramCache]: Analyzing trace with hash 73364297, now seen corresponding path program 1 times [2023-12-19 23:38:27,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:38:27,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921180566] [2023-12-19 23:38:27,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:38:27,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:38:27,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:27,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 23:38:27,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:27,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 23:38:27,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:27,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-19 23:38:27,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:27,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 23:38:27,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:27,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 23:38:27,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:27,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-19 23:38:27,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:27,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-19 23:38:27,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:27,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 23:38:27,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:27,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 23:38:27,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:27,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 23:38:27,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:27,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:38:27,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:27,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:38:27,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:27,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 23:38:27,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:27,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-19 23:38:27,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:27,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-19 23:38:27,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:27,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 23:38:27,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:27,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-19 23:38:27,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:27,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:38:27,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:27,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-19 23:38:27,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:27,391 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 55 proven. 6 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2023-12-19 23:38:27,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:38:27,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921180566] [2023-12-19 23:38:27,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921180566] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 23:38:27,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1274428201] [2023-12-19 23:38:27,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:38:27,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:38:27,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:38:27,392 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 23:38:27,394 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-19 23:38:27,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:27,476 INFO L262 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-19 23:38:27,479 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 23:38:27,572 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-19 23:38:27,572 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 23:38:27,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1274428201] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:38:27,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 23:38:27,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [17] total 22 [2023-12-19 23:38:27,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248842971] [2023-12-19 23:38:27,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:38:27,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-19 23:38:27,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:38:27,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-19 23:38:27,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=408, Unknown=0, NotChecked=0, Total=462 [2023-12-19 23:38:27,574 INFO L87 Difference]: Start difference. First operand 849 states and 1091 transitions. Second operand has 8 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 3 states have call successors, (17), 3 states have call predecessors, (17), 5 states have return successors, (16), 5 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-19 23:38:27,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:38:27,753 INFO L93 Difference]: Finished difference Result 1481 states and 1899 transitions. [2023-12-19 23:38:27,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 23:38:27,754 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 3 states have call successors, (17), 3 states have call predecessors, (17), 5 states have return successors, (16), 5 states have call predecessors, (16), 3 states have call successors, (16) Word has length 135 [2023-12-19 23:38:27,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:38:27,755 INFO L225 Difference]: With dead ends: 1481 [2023-12-19 23:38:27,755 INFO L226 Difference]: Without dead ends: 0 [2023-12-19 23:38:27,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=408, Unknown=0, NotChecked=0, Total=462 [2023-12-19 23:38:27,759 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 56 mSDsluCounter, 655 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 796 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:38:27,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 796 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 23:38:27,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-19 23:38:27,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-19 23:38:27,760 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) [2023-12-19 23:38:27,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-19 23:38:27,761 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 135 [2023-12-19 23:38:27,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:38:27,761 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-19 23:38:27,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 3 states have call successors, (17), 3 states have call predecessors, (17), 5 states have return successors, (16), 5 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-19 23:38:27,761 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-19 23:38:27,762 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-19 23:38:27,764 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-19 23:38:27,844 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-19 23:38:27,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:38:27,972 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-19 23:38:30,595 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 378 385) no Hoare annotation was computed. [2023-12-19 23:38:30,595 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 378 385) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1) (or .cse0 .cse1 (< ~methaneLevelCritical~0 1)))) [2023-12-19 23:38:30,596 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 294 300) no Hoare annotation was computed. [2023-12-19 23:38:30,596 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 294 300) the Hoare annotation is: true [2023-12-19 23:38:30,596 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 83 94) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse2 (not (= |old(~methaneLevelCritical~0)| 0))) (.cse3 (= ~methaneLevelCritical~0 0)) (.cse1 (not (= ~methAndRunningLastTime~0 0)))) (and (or (<= 1 ~methaneLevelCritical~0) .cse0 (< |old(~methaneLevelCritical~0)| 1) .cse1) (or .cse2 .cse0 .cse3 .cse1) (or .cse2 .cse3 (= 0 ~systemActive~0) .cse1))) [2023-12-19 23:38:30,596 INFO L899 garLoopResultBuilder]: For program point L87-1(lines 83 94) no Hoare annotation was computed. [2023-12-19 23:38:30,596 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 83 94) no Hoare annotation was computed. [2023-12-19 23:38:30,596 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 901 930) no Hoare annotation was computed. [2023-12-19 23:38:30,596 INFO L899 garLoopResultBuilder]: For program point L926(lines 901 930) no Hoare annotation was computed. [2023-12-19 23:38:30,596 INFO L899 garLoopResultBuilder]: For program point L922(line 922) no Hoare annotation was computed. [2023-12-19 23:38:30,596 INFO L899 garLoopResultBuilder]: For program point L915(lines 915 919) no Hoare annotation was computed. [2023-12-19 23:38:30,596 INFO L902 garLoopResultBuilder]: At program point L915-1(lines 915 919) the Hoare annotation is: true [2023-12-19 23:38:30,596 INFO L902 garLoopResultBuilder]: At program point L911-2(lines 911 925) the Hoare annotation is: true [2023-12-19 23:38:30,596 INFO L902 garLoopResultBuilder]: At program point L907(line 907) the Hoare annotation is: true [2023-12-19 23:38:30,596 INFO L899 garLoopResultBuilder]: For program point L907-1(line 907) no Hoare annotation was computed. [2023-12-19 23:38:30,596 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 901 930) the Hoare annotation is: true [2023-12-19 23:38:30,596 INFO L899 garLoopResultBuilder]: For program point L895(line 895) no Hoare annotation was computed. [2023-12-19 23:38:30,596 INFO L899 garLoopResultBuilder]: For program point L507(lines 507 517) no Hoare annotation was computed. [2023-12-19 23:38:30,596 INFO L899 garLoopResultBuilder]: For program point L503(lines 503 520) no Hoare annotation was computed. [2023-12-19 23:38:30,597 INFO L895 garLoopResultBuilder]: At program point L342(line 342) the Hoare annotation is: (let ((.cse4 (= 0 ~systemActive~0))) (let ((.cse5 (< ~methaneLevelCritical~0 1)) (.cse2 (not .cse4)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse5) (or .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= ~waterLevel~0 |old(~waterLevel~0)|)) .cse4) (or .cse0 .cse5 .cse2) (or .cse0 .cse3 .cse1)))) [2023-12-19 23:38:30,597 INFO L899 garLoopResultBuilder]: For program point L503-1(lines 495 523) no Hoare annotation was computed. [2023-12-19 23:38:30,597 INFO L895 garLoopResultBuilder]: At program point L338(line 338) the Hoare annotation is: (let ((.cse6 (= 0 ~systemActive~0))) (let ((.cse4 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse5 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse2 (not .cse6)) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse7 (< ~methaneLevelCritical~0 1))) (and (or .cse0 .cse1 .cse2) (or .cse3 (and .cse4 .cse5 (<= ~methaneLevelCritical~0 |timeShift_processEnvironment_~tmp~2#1|) .cse2) .cse6 .cse7) (or .cse1 (and .cse4 .cse5 .cse2) .cse6) (or .cse0 .cse7 .cse2) (or .cse0 .cse3 .cse1) (or .cse0 .cse3 .cse7)))) [2023-12-19 23:38:30,597 INFO L895 garLoopResultBuilder]: At program point L334(line 334) the Hoare annotation is: (let ((.cse5 (= 0 ~systemActive~0))) (let ((.cse3 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse4 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse2 (not .cse5)) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse7 (< ~methaneLevelCritical~0 1))) (and (or .cse0 .cse1 .cse2) (or .cse1 (and .cse3 .cse4) .cse5) (or (and .cse3 (= ~methAndRunningLastTime~0 0) .cse4) .cse6 .cse5 .cse7) (or .cse0 .cse7 .cse2) (or .cse0 .cse6 .cse1) (or .cse0 .cse6 .cse7)))) [2023-12-19 23:38:30,597 INFO L899 garLoopResultBuilder]: For program point L334-1(line 334) no Hoare annotation was computed. [2023-12-19 23:38:30,597 INFO L899 garLoopResultBuilder]: For program point L508(lines 508 514) no Hoare annotation was computed. [2023-12-19 23:38:30,597 INFO L895 garLoopResultBuilder]: At program point L347(line 347) the Hoare annotation is: (let ((.cse3 (= 0 ~systemActive~0)) (.cse9 (= |old(~pumpRunning~0)| 0))) (let ((.cse8 (= ~pumpRunning~0 0)) (.cse10 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse5 (not .cse9)) (.cse4 (< ~methaneLevelCritical~0 1)) (.cse7 (not .cse3)) (.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (<= 2 ~waterLevel~0)) (.cse2 (< |old(~waterLevel~0)| 2)) (.cse6 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse6 .cse7) (or (and .cse8 .cse9 .cse10) .cse6 .cse3) (or .cse0 (and .cse8 (= ~methAndRunningLastTime~0 0) .cse9 .cse10) .cse3 .cse4) (or .cse5 .cse4 .cse7) (or .cse0 .cse1 .cse2 .cse6 .cse3)))) [2023-12-19 23:38:30,597 INFO L899 garLoopResultBuilder]: For program point L347-1(lines 328 352) no Hoare annotation was computed. [2023-12-19 23:38:30,597 INFO L899 garLoopResultBuilder]: For program point L281-1(lines 281 287) no Hoare annotation was computed. [2023-12-19 23:38:30,597 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 270 293) the Hoare annotation is: (let ((.cse7 (= 0 ~systemActive~0)) (.cse11 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (let ((.cse2 (and (= ~pumpRunning~0 0) .cse11)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (<= 2 ~waterLevel~0)) (.cse6 (< |old(~waterLevel~0)| 2)) (.cse3 (not .cse7)) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse10 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse9 (= ~methAndRunningLastTime~0 0)) (.cse8 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse4 (< ~methaneLevelCritical~0 1))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse2 .cse4 .cse3) (or .cse5 .cse6 .cse1 .cse7) (or .cse8 .cse5 .cse6 .cse7 .cse4) (or .cse0 .cse8 .cse9 .cse1 .cse7) (or .cse0 .cse5 .cse6 .cse1 .cse3) (or .cse0 .cse5 .cse6 .cse4 .cse3) (or .cse1 (and .cse10 .cse11) .cse7) (or (and .cse10 .cse9 .cse11) .cse8 .cse7 .cse4)))) [2023-12-19 23:38:30,597 INFO L899 garLoopResultBuilder]: For program point L63(lines 63 67) no Hoare annotation was computed. [2023-12-19 23:38:30,598 INFO L899 garLoopResultBuilder]: For program point L63-2(lines 59 70) no Hoare annotation was computed. [2023-12-19 23:38:30,598 INFO L895 garLoopResultBuilder]: At program point L501(line 501) the Hoare annotation is: (let ((.cse6 (= 0 ~systemActive~0))) (let ((.cse13 (= ~pumpRunning~0 0)) (.cse12 (= ~methaneLevelCritical~0 0)) (.cse11 (<= 2 ~waterLevel~0)) (.cse10 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse3 (not .cse6))) (let ((.cse7 (and .cse12 .cse11 .cse10 .cse3)) (.cse9 (and .cse13 .cse10 .cse3)) (.cse2 (and .cse13 .cse10)) (.cse1 (not .cse12)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse5 (< |old(~waterLevel~0)| 2)) (.cse8 (< ~methaneLevelCritical~0 1))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse4 .cse5 .cse1 .cse6 .cse7) (or .cse4 .cse6 .cse8 .cse9) (or .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse10) .cse6 .cse7 .cse9) (or .cse0 .cse2 .cse8 .cse3) (or .cse0 .cse11 .cse5 .cse1 .cse3) (or .cse0 .cse11 .cse5 .cse8 .cse3) (or .cse0 .cse4 .cse5 (and (= ~methAndRunningLastTime~0 0) .cse11) .cse6 .cse8))))) [2023-12-19 23:38:30,598 INFO L899 garLoopResultBuilder]: For program point L501-1(line 501) no Hoare annotation was computed. [2023-12-19 23:38:30,598 INFO L899 garLoopResultBuilder]: For program point L274-1(lines 273 292) no Hoare annotation was computed. [2023-12-19 23:38:30,598 INFO L899 garLoopResultBuilder]: For program point L336(lines 336 344) no Hoare annotation was computed. [2023-12-19 23:38:30,598 INFO L899 garLoopResultBuilder]: For program point L332(lines 332 349) no Hoare annotation was computed. [2023-12-19 23:38:30,598 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 270 293) no Hoare annotation was computed. [2023-12-19 23:38:30,598 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 895) no Hoare annotation was computed. [2023-12-19 23:38:30,598 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 95 103) the Hoare annotation is: true [2023-12-19 23:38:30,598 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 95 103) no Hoare annotation was computed. [2023-12-19 23:38:30,598 INFO L895 garLoopResultBuilder]: At program point L225(line 225) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse4 (= ~methaneLevelCritical~0 0)) (.cse2 (= |ULTIMATE.start_main_~tmp~9#1| 1)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (<= 1 ~methaneLevelCritical~0) .cse2 .cse3) (and .cse0 .cse1 .cse4 .cse2 .cse3) (and .cse1 .cse4 .cse2 .cse3 (not (= 0 ~systemActive~0))))) [2023-12-19 23:38:30,598 INFO L895 garLoopResultBuilder]: At program point L250(lines 203 252) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse4 (= ~methaneLevelCritical~0 0)) (.cse2 (= |ULTIMATE.start_main_~tmp~9#1| 1)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (<= 1 ~methaneLevelCritical~0) .cse2 .cse3) (and .cse0 .cse1 .cse4 .cse2 .cse3) (and .cse1 .cse4 .cse2 .cse3 (not (= 0 ~systemActive~0))))) [2023-12-19 23:38:30,598 INFO L899 garLoopResultBuilder]: For program point L213(lines 213 219) no Hoare annotation was computed. [2023-12-19 23:38:30,599 INFO L899 garLoopResultBuilder]: For program point L213-1(lines 213 219) no Hoare annotation was computed. [2023-12-19 23:38:30,599 INFO L899 garLoopResultBuilder]: For program point L465(lines 465 471) no Hoare annotation was computed. [2023-12-19 23:38:30,599 INFO L899 garLoopResultBuilder]: For program point L465-1(lines 465 471) no Hoare annotation was computed. [2023-12-19 23:38:30,599 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-19 23:38:30,599 INFO L899 garLoopResultBuilder]: For program point L256(lines 193 260) no Hoare annotation was computed. [2023-12-19 23:38:30,599 INFO L899 garLoopResultBuilder]: For program point L223(lines 223 229) no Hoare annotation was computed. [2023-12-19 23:38:30,599 INFO L899 garLoopResultBuilder]: For program point L223-1(lines 223 229) no Hoare annotation was computed. [2023-12-19 23:38:30,599 INFO L899 garLoopResultBuilder]: For program point L983(lines 983 990) no Hoare annotation was computed. [2023-12-19 23:38:30,599 INFO L895 garLoopResultBuilder]: At program point L215(line 215) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse4 (= ~methaneLevelCritical~0 0)) (.cse2 (= |ULTIMATE.start_main_~tmp~9#1| 1)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (<= 1 ~methaneLevelCritical~0) .cse2 .cse3) (and .cse0 .cse1 .cse4 .cse2 .cse3) (and .cse1 .cse4 .cse2 .cse3 (not (= 0 ~systemActive~0))))) [2023-12-19 23:38:30,599 INFO L899 garLoopResultBuilder]: For program point L983-2(lines 983 990) no Hoare annotation was computed. [2023-12-19 23:38:30,599 INFO L895 garLoopResultBuilder]: At program point L467(line 467) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~9#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (not (= 0 ~systemActive~0)))) (or (and (<= 1 ~methaneLevelCritical~0) .cse0 .cse1 .cse2) (and (= ~methaneLevelCritical~0 0) .cse0 .cse1 .cse2))) [2023-12-19 23:38:30,599 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-19 23:38:30,599 INFO L895 garLoopResultBuilder]: At program point L253(lines 202 254) the Hoare annotation is: false [2023-12-19 23:38:30,599 INFO L899 garLoopResultBuilder]: For program point L241(lines 241 247) no Hoare annotation was computed. [2023-12-19 23:38:30,599 INFO L895 garLoopResultBuilder]: At program point L241-2(lines 233 248) the Hoare annotation is: (let ((.cse4 (= 0 ~systemActive~0))) (let ((.cse1 (<= 1 ~methaneLevelCritical~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse6 (= ~methaneLevelCritical~0 0)) (.cse2 (= |ULTIMATE.start_main_~tmp~9#1| 1)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse5 (not .cse4))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and (= ~methAndRunningLastTime~0 0) .cse1 .cse2 .cse3 .cse5) (and .cse0 .cse6 .cse2 .cse3 .cse4) (and .cse6 .cse2 .cse3 .cse5)))) [2023-12-19 23:38:30,599 INFO L899 garLoopResultBuilder]: For program point L204(lines 203 252) no Hoare annotation was computed. [2023-12-19 23:38:30,599 INFO L899 garLoopResultBuilder]: For program point L233(lines 233 248) no Hoare annotation was computed. [2023-12-19 23:38:30,599 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 71 82) no Hoare annotation was computed. [2023-12-19 23:38:30,599 INFO L899 garLoopResultBuilder]: For program point L75-1(lines 71 82) no Hoare annotation was computed. [2023-12-19 23:38:30,600 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 71 82) the Hoare annotation is: (let ((.cse4 (<= 2 ~waterLevel~0)) (.cse5 (< |old(~waterLevel~0)| 2)) (.cse0 (not (= ~pumpRunning~0 0))) (.cse7 (< ~methaneLevelCritical~0 1)) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse2 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse6 (= 0 ~systemActive~0)) (.cse3 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse1 .cse6 .cse3) (or .cse0 .cse4 .cse5 .cse1 .cse3) (or .cse0 .cse4 .cse5 .cse3 .cse7) (or .cse0 .cse2 .cse3 .cse7) (or .cse1 .cse2 .cse6 .cse3))) [2023-12-19 23:38:30,600 INFO L895 garLoopResultBuilder]: At program point L316(line 316) the Hoare annotation is: (let ((.cse2 (= |old(~pumpRunning~0)| 0)) (.cse1 (= 0 ~systemActive~0))) (let ((.cse0 (and (= ~pumpRunning~0 0) .cse2 (= |processEnvironment__wrappee__methaneQuery_~tmp~1#1| 0) (not .cse1)))) (and (or (not (= ~methaneLevelCritical~0 0)) .cse0 .cse1) (or (not .cse2) .cse0 .cse1 (not (= ~methAndRunningLastTime~0 0)) (< ~methaneLevelCritical~0 1))))) [2023-12-19 23:38:30,600 INFO L899 garLoopResultBuilder]: For program point L310(lines 310 318) no Hoare annotation was computed. [2023-12-19 23:38:30,600 INFO L899 garLoopResultBuilder]: For program point L306(lines 306 323) no Hoare annotation was computed. [2023-12-19 23:38:30,600 INFO L899 garLoopResultBuilder]: For program point L368(lines 368 374) no Hoare annotation was computed. [2023-12-19 23:38:30,600 INFO L895 garLoopResultBuilder]: At program point L366(line 366) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse2 (<= 2 ~waterLevel~0)) (.cse0 (= |old(~pumpRunning~0)| 0)) (.cse3 (= 0 ~systemActive~0))) (and (or (not .cse0) (and .cse1 .cse2) .cse3 (not (= ~methAndRunningLastTime~0 0)) (< ~methaneLevelCritical~0 1)) (or (not (= ~methaneLevelCritical~0 0)) (and .cse1 .cse2 .cse0) .cse3))) [2023-12-19 23:38:30,600 INFO L899 garLoopResultBuilder]: For program point L368-2(lines 361 377) no Hoare annotation was computed. [2023-12-19 23:38:30,600 INFO L899 garLoopResultBuilder]: For program point L366-1(line 366) no Hoare annotation was computed. [2023-12-19 23:38:30,600 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 302 326) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0 (not (= ~methAndRunningLastTime~0 0)) (< ~methaneLevelCritical~0 1)) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= ~methaneLevelCritical~0 0)) .cse0))) [2023-12-19 23:38:30,600 INFO L899 garLoopResultBuilder]: For program point L451(lines 451 455) no Hoare annotation was computed. [2023-12-19 23:38:30,600 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDry_returnLabel#1(lines 136 149) no Hoare annotation was computed. [2023-12-19 23:38:30,600 INFO L899 garLoopResultBuilder]: For program point L451-2(lines 451 455) no Hoare annotation was computed. [2023-12-19 23:38:30,600 INFO L895 garLoopResultBuilder]: At program point L321(line 321) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse2 (not (= ~methAndRunningLastTime~0 0)) (< ~methaneLevelCritical~0 1)) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 .cse2))) [2023-12-19 23:38:30,600 INFO L899 garLoopResultBuilder]: For program point L321-1(lines 302 326) no Hoare annotation was computed. [2023-12-19 23:38:30,600 INFO L899 garLoopResultBuilder]: For program point L140(lines 140 146) no Hoare annotation was computed. [2023-12-19 23:38:30,600 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 302 326) no Hoare annotation was computed. [2023-12-19 23:38:30,600 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 386 396) no Hoare annotation was computed. [2023-12-19 23:38:30,600 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 386 396) the Hoare annotation is: true [2023-12-19 23:38:30,601 INFO L902 garLoopResultBuilder]: At program point L391(line 391) the Hoare annotation is: true [2023-12-19 23:38:30,601 INFO L899 garLoopResultBuilder]: For program point L391-1(line 391) no Hoare annotation was computed. [2023-12-19 23:38:30,602 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:38:30,603 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-19 23:38:30,615 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 11:38:30 BoogieIcfgContainer [2023-12-19 23:38:30,615 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-19 23:38:30,616 INFO L158 Benchmark]: Toolchain (without parser) took 10638.10ms. Allocated memory was 235.9MB in the beginning and 341.8MB in the end (delta: 105.9MB). Free memory was 181.1MB in the beginning and 165.4MB in the end (delta: 15.7MB). Peak memory consumption was 180.4MB. Max. memory is 8.0GB. [2023-12-19 23:38:30,616 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 167.8MB. Free memory is still 116.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 23:38:30,616 INFO L158 Benchmark]: CACSL2BoogieTranslator took 444.86ms. Allocated memory is still 235.9MB. Free memory was 181.1MB in the beginning and 161.2MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-12-19 23:38:30,616 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.16ms. Allocated memory is still 235.9MB. Free memory was 161.2MB in the beginning and 159.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-19 23:38:30,616 INFO L158 Benchmark]: Boogie Preprocessor took 44.33ms. Allocated memory is still 235.9MB. Free memory was 159.1MB in the beginning and 156.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-19 23:38:30,617 INFO L158 Benchmark]: RCFGBuilder took 483.90ms. Allocated memory is still 235.9MB. Free memory was 156.4MB in the beginning and 134.4MB in the end (delta: 22.0MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. [2023-12-19 23:38:30,617 INFO L158 Benchmark]: TraceAbstraction took 9616.92ms. Allocated memory was 235.9MB in the beginning and 341.8MB in the end (delta: 105.9MB). Free memory was 133.4MB in the beginning and 165.4MB in the end (delta: -32.0MB). Peak memory consumption was 132.1MB. Max. memory is 8.0GB. [2023-12-19 23:38:30,619 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 167.8MB. Free memory is still 116.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 444.86ms. Allocated memory is still 235.9MB. Free memory was 181.1MB in the beginning and 161.2MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 43.16ms. Allocated memory is still 235.9MB. Free memory was 161.2MB in the beginning and 159.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 44.33ms. Allocated memory is still 235.9MB. Free memory was 159.1MB in the beginning and 156.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 483.90ms. Allocated memory is still 235.9MB. Free memory was 156.4MB in the beginning and 134.4MB in the end (delta: 22.0MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. * TraceAbstraction took 9616.92ms. Allocated memory was 235.9MB in the beginning and 341.8MB in the end (delta: 105.9MB). Free memory was 133.4MB in the beginning and 165.4MB in the end (delta: -32.0MB). Peak memory consumption was 132.1MB. 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,"Environment.i","") [49] - GenericResultAtLocation [Line: 150]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [150] - GenericResultAtLocation [Line: 188]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [188] - GenericResultAtLocation [Line: 261]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [261] - GenericResultAtLocation [Line: 484]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [484] - GenericResultAtLocation [Line: 524]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [524] - GenericResultAtLocation [Line: 890]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [890] - GenericResultAtLocation [Line: 899]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [899] * 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: 895]: 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 10 procedures, 82 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.6s, OverallIterations: 12, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 848 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 800 mSDsluCounter, 3579 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2475 mSDsCounter, 171 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1332 IncrementalHoareTripleChecker+Invalid, 1503 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 171 mSolverCounterUnsat, 1104 mSDtfsCounter, 1332 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 919 GetRequests, 812 SyntacticMatches, 1 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=905occurred in iteration=10, InterpolantAutomatonStates: 64, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 12 MinimizatonAttempts, 226 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 27 LocationsWithAnnotation, 1416 PreInvPairs, 1573 NumberOfFragments, 1295 HoareAnnotationTreeSize, 1416 FormulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 27 FormulaSimplificationsInter, 10739 FormulaSimplificationTreeSizeReductionInter, 2.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 1303 NumberOfCodeBlocks, 1303 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 1372 ConstructedInterpolants, 0 QuantifiedInterpolants, 2435 SizeOfPredicates, 11 NumberOfNonLiveVariables, 2064 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 19 InterpolantComputations, 12 PerfectInterpolantSequences, 616/660 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: 202]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 911]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 203]: Loop Invariant Derived loop invariant: (((((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 <= methaneLevelCritical)) && (tmp == 1)) && (splverifierCounter == 0)) || (((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (methaneLevelCritical == 0)) && (tmp == 1)) && (splverifierCounter == 0))) || (((((methAndRunningLastTime == 0) && (methaneLevelCritical == 0)) && (tmp == 1)) && (splverifierCounter == 0)) && !((0 == systemActive)))) RESULT: Ultimate proved your program to be correct! [2023-12-19 23:38:30,644 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...