/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product54.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 22:56:15,218 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 22:56:15,285 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-15 22:56:15,290 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 22:56:15,291 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 22:56:15,319 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 22:56:15,319 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 22:56:15,319 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 22:56:15,320 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 22:56:15,320 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 22:56:15,320 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 22:56:15,320 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 22:56:15,321 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 22:56:15,321 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 22:56:15,321 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 22:56:15,322 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 22:56:15,322 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 22:56:15,322 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 22:56:15,322 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 22:56:15,322 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 22:56:15,323 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 22:56:15,325 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 22:56:15,326 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 22:56:15,326 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 22:56:15,328 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 22:56:15,328 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 22:56:15,329 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 22:56:15,329 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 22:56:15,329 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 22:56:15,329 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 22:56:15,330 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 22:56:15,330 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 22:56:15,330 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 22:56:15,330 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 22:56:15,331 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 22:56:15,331 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 22:56:15,331 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 22:56:15,331 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 22:56:15,331 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 22:56:15,331 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 22:56:15,331 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 22:56:15,332 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 22:56:15,332 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 22:56:15,332 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 22:56:15,527 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 22:56:15,545 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 22:56:15,547 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 22:56:15,548 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 22:56:15,548 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 22:56:15,549 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product54.cil.c [2023-12-15 22:56:16,643 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 22:56:16,872 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 22:56:16,872 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product54.cil.c [2023-12-15 22:56:16,881 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c05b6a72d/400412e3baf049d6bbe216e04b9f8140/FLAG2ee5146d0 [2023-12-15 22:56:16,897 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c05b6a72d/400412e3baf049d6bbe216e04b9f8140 [2023-12-15 22:56:16,899 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 22:56:16,900 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 22:56:16,902 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 22:56:16,902 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 22:56:16,905 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 22:56:16,906 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:56:16" (1/1) ... [2023-12-15 22:56:16,906 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fe2fde3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:56:16, skipping insertion in model container [2023-12-15 22:56:16,907 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:56:16" (1/1) ... [2023-12-15 22:56:16,955 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 22:56:17,116 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product54.cil.c[4478,4491] [2023-12-15 22:56:17,178 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 22:56:17,185 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 22:56:17,191 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] [2023-12-15 22:56:17,192 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [160] [2023-12-15 22:56:17,192 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [262] [2023-12-15 22:56:17,192 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [271] [2023-12-15 22:56:17,193 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [306] [2023-12-15 22:56:17,196 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [341] [2023-12-15 22:56:17,196 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [707] [2023-12-15 22:56:17,196 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [775] [2023-12-15 22:56:17,216 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product54.cil.c[4478,4491] [2023-12-15 22:56:17,249 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 22:56:17,261 INFO L206 MainTranslator]: Completed translation [2023-12-15 22:56:17,261 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:56:17 WrapperNode [2023-12-15 22:56:17,261 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 22:56:17,262 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 22:56:17,262 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 22:56:17,262 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 22:56:17,267 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:56:17" (1/1) ... [2023-12-15 22:56:17,275 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:56:17" (1/1) ... [2023-12-15 22:56:17,303 INFO L138 Inliner]: procedures = 57, calls = 104, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 231 [2023-12-15 22:56:17,303 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 22:56:17,304 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 22:56:17,304 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 22:56:17,304 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 22:56:17,317 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:56:17" (1/1) ... [2023-12-15 22:56:17,317 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:56:17" (1/1) ... [2023-12-15 22:56:17,337 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:56:17" (1/1) ... [2023-12-15 22:56:17,347 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-15 22:56:17,347 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:56:17" (1/1) ... [2023-12-15 22:56:17,347 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:56:17" (1/1) ... [2023-12-15 22:56:17,350 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:56:17" (1/1) ... [2023-12-15 22:56:17,358 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:56:17" (1/1) ... [2023-12-15 22:56:17,359 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:56:17" (1/1) ... [2023-12-15 22:56:17,360 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:56:17" (1/1) ... [2023-12-15 22:56:17,363 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 22:56:17,363 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 22:56:17,363 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 22:56:17,363 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 22:56:17,364 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:56:17" (1/1) ... [2023-12-15 22:56:17,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 22:56:17,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:56:17,385 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-15 22:56:17,387 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-15 22:56:17,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 22:56:17,405 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-12-15 22:56:17,405 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-12-15 22:56:17,405 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-15 22:56:17,405 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-15 22:56:17,405 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-15 22:56:17,405 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-15 22:56:17,405 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-12-15 22:56:17,405 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-12-15 22:56:17,405 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-12-15 22:56:17,406 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-12-15 22:56:17,406 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-12-15 22:56:17,406 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-12-15 22:56:17,406 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2023-12-15 22:56:17,406 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2023-12-15 22:56:17,406 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-12-15 22:56:17,406 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-12-15 22:56:17,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 22:56:17,406 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-12-15 22:56:17,406 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-12-15 22:56:17,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 22:56:17,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 22:56:17,456 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 22:56:17,457 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 22:56:17,676 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 22:56:17,721 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 22:56:17,721 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-15 22:56:17,722 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:56:17 BoogieIcfgContainer [2023-12-15 22:56:17,722 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 22:56:17,723 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 22:56:17,723 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 22:56:17,729 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 22:56:17,730 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 10:56:16" (1/3) ... [2023-12-15 22:56:17,730 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bea9da8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:56:17, skipping insertion in model container [2023-12-15 22:56:17,730 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:56:17" (2/3) ... [2023-12-15 22:56:17,730 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bea9da8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:56:17, skipping insertion in model container [2023-12-15 22:56:17,730 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:56:17" (3/3) ... [2023-12-15 22:56:17,731 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product54.cil.c [2023-12-15 22:56:17,743 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 22:56:17,743 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 22:56:17,774 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 22:56:17,778 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;@69a61e46, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 22:56:17,778 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 22:56:17,781 INFO L276 IsEmpty]: Start isEmpty. Operand has 81 states, 54 states have (on average 1.537037037037037) 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), 11 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-15 22:56:17,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-15 22:56:17,812 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:56:17,812 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:56:17,813 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:56:17,816 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:56:17,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1601004383, now seen corresponding path program 1 times [2023-12-15 22:56:17,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:56:17,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868600592] [2023-12-15 22:56:17,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:56:17,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:56:17,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:17,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-15 22:56:17,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:17,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:56:17,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:56:17,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868600592] [2023-12-15 22:56:17,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868600592] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:56:17,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:56:17,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 22:56:17,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503282191] [2023-12-15 22:56:17,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:56:17,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-15 22:56:17,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:56:17,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-15 22:56:17,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 22:56:17,988 INFO L87 Difference]: Start difference. First operand has 81 states, 54 states have (on average 1.537037037037037) 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), 11 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) [2023-12-15 22:56:18,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:56:18,054 INFO L93 Difference]: Finished difference Result 160 states and 231 transitions. [2023-12-15 22:56:18,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-15 22:56:18,056 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2023-12-15 22:56:18,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:56:18,062 INFO L225 Difference]: With dead ends: 160 [2023-12-15 22:56:18,062 INFO L226 Difference]: Without dead ends: 76 [2023-12-15 22:56:18,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 22:56:18,067 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:56:18,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 93 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:56:18,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2023-12-15 22:56:18,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2023-12-15 22:56:18,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 51 states have (on average 1.4313725490196079) internal successors, (73), 60 states have internal predecessors, (73), 16 states have call successors, (16), 9 states have call predecessors, (16), 8 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-15 22:56:18,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 104 transitions. [2023-12-15 22:56:18,106 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 104 transitions. Word has length 17 [2023-12-15 22:56:18,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:56:18,107 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 104 transitions. [2023-12-15 22:56:18,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-15 22:56:18,107 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 104 transitions. [2023-12-15 22:56:18,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-15 22:56:18,110 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:56:18,110 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:56:18,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-15 22:56:18,110 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:56:18,111 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:56:18,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1042531106, now seen corresponding path program 1 times [2023-12-15 22:56:18,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:56:18,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251441132] [2023-12-15 22:56:18,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:56:18,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:56:18,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:18,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-15 22:56:18,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:18,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:56:18,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:56:18,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251441132] [2023-12-15 22:56:18,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251441132] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:56:18,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:56:18,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 22:56:18,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475231753] [2023-12-15 22:56:18,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:56:18,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 22:56:18,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:56:18,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 22:56:18,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 22:56:18,186 INFO L87 Difference]: Start difference. First operand 76 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) [2023-12-15 22:56:18,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:56:18,210 INFO L93 Difference]: Finished difference Result 125 states and 171 transitions. [2023-12-15 22:56:18,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 22:56:18,211 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2023-12-15 22:56:18,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:56:18,211 INFO L225 Difference]: With dead ends: 125 [2023-12-15 22:56:18,211 INFO L226 Difference]: Without dead ends: 68 [2023-12-15 22:56:18,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 22:56:18,213 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 11 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:56:18,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 145 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:56:18,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2023-12-15 22:56:18,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2023-12-15 22:56:18,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 46 states have (on average 1.4565217391304348) 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), 8 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-15 22:56:18,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 93 transitions. [2023-12-15 22:56:18,219 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 93 transitions. Word has length 18 [2023-12-15 22:56:18,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:56:18,220 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 93 transitions. [2023-12-15 22:56:18,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-15 22:56:18,220 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 93 transitions. [2023-12-15 22:56:18,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-15 22:56:18,222 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:56:18,222 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:56:18,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-15 22:56:18,223 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:56:18,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:56:18,223 INFO L85 PathProgramCache]: Analyzing trace with hash 411574839, now seen corresponding path program 1 times [2023-12-15 22:56:18,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:56:18,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491761422] [2023-12-15 22:56:18,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:56:18,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:56:18,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:18,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-15 22:56:18,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:18,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:56:18,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:56:18,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491761422] [2023-12-15 22:56:18,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491761422] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:56:18,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:56:18,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 22:56:18,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87268004] [2023-12-15 22:56:18,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:56:18,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 22:56:18,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:56:18,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 22:56:18,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 22:56:18,307 INFO L87 Difference]: Start difference. First operand 68 states and 93 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-15 22:56:18,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:56:18,350 INFO L93 Difference]: Finished difference Result 134 states and 185 transitions. [2023-12-15 22:56:18,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 22:56:18,350 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2023-12-15 22:56:18,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:56:18,351 INFO L225 Difference]: With dead ends: 134 [2023-12-15 22:56:18,351 INFO L226 Difference]: Without dead ends: 68 [2023-12-15 22:56:18,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 22:56:18,352 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 88 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:56:18,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 77 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:56:18,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2023-12-15 22:56:18,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2023-12-15 22:56:18,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 46 states have (on average 1.434782608695652) internal successors, (66), 55 states have internal predecessors, (66), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 8 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-15 22:56:18,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 92 transitions. [2023-12-15 22:56:18,359 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 92 transitions. Word has length 21 [2023-12-15 22:56:18,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:56:18,360 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 92 transitions. [2023-12-15 22:56:18,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-15 22:56:18,360 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 92 transitions. [2023-12-15 22:56:18,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-15 22:56:18,361 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:56:18,361 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] [2023-12-15 22:56:18,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-15 22:56:18,361 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:56:18,361 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:56:18,361 INFO L85 PathProgramCache]: Analyzing trace with hash 2090515431, now seen corresponding path program 1 times [2023-12-15 22:56:18,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:56:18,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866904379] [2023-12-15 22:56:18,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:56:18,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:56:18,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:18,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-15 22:56:18,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:18,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-15 22:56:18,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:18,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-12-15 22:56:18,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:18,448 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-15 22:56:18,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:56:18,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866904379] [2023-12-15 22:56:18,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866904379] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:56:18,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:56:18,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 22:56:18,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854935466] [2023-12-15 22:56:18,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:56:18,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 22:56:18,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:56:18,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 22:56:18,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-15 22:56:18,450 INFO L87 Difference]: Start difference. First operand 68 states and 92 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-15 22:56:18,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:56:18,631 INFO L93 Difference]: Finished difference Result 205 states and 279 transitions. [2023-12-15 22:56:18,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 22:56:18,631 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 31 [2023-12-15 22:56:18,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:56:18,639 INFO L225 Difference]: With dead ends: 205 [2023-12-15 22:56:18,639 INFO L226 Difference]: Without dead ends: 139 [2023-12-15 22:56:18,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-15 22:56:18,646 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 134 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 22:56:18,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 148 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 22:56:18,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2023-12-15 22:56:18,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 133. [2023-12-15 22:56:18,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 93 states have (on average 1.3763440860215055) internal successors, (128), 101 states have internal predecessors, (128), 19 states have call successors, (19), 15 states have call predecessors, (19), 20 states have return successors, (30), 21 states have call predecessors, (30), 19 states have call successors, (30) [2023-12-15 22:56:18,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 177 transitions. [2023-12-15 22:56:18,664 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 177 transitions. Word has length 31 [2023-12-15 22:56:18,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:56:18,664 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 177 transitions. [2023-12-15 22:56:18,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-15 22:56:18,664 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 177 transitions. [2023-12-15 22:56:18,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-15 22:56:18,668 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:56:18,668 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:56:18,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-15 22:56:18,668 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:56:18,668 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:56:18,669 INFO L85 PathProgramCache]: Analyzing trace with hash -181130615, now seen corresponding path program 1 times [2023-12-15 22:56:18,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:56:18,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938530728] [2023-12-15 22:56:18,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:56:18,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:56:18,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:18,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-15 22:56:18,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:18,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:56:18,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:18,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-15 22:56:18,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:18,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:56:18,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:56:18,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938530728] [2023-12-15 22:56:18,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938530728] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:56:18,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:56:18,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 22:56:18,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788462282] [2023-12-15 22:56:18,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:56:18,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 22:56:18,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:56:18,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 22:56:18,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 22:56:18,814 INFO L87 Difference]: Start difference. First operand 133 states and 177 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-15 22:56:18,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:56:18,947 INFO L93 Difference]: Finished difference Result 268 states and 362 transitions. [2023-12-15 22:56:18,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 22:56:18,947 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 38 [2023-12-15 22:56:18,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:56:18,949 INFO L225 Difference]: With dead ends: 268 [2023-12-15 22:56:18,949 INFO L226 Difference]: Without dead ends: 137 [2023-12-15 22:56:18,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:56:18,951 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 55 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 22:56:18,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 222 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 22:56:18,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2023-12-15 22:56:18,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 135. [2023-12-15 22:56:18,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 95 states have (on average 1.368421052631579) internal successors, (130), 103 states have internal predecessors, (130), 19 states have call successors, (19), 15 states have call predecessors, (19), 20 states have return successors, (30), 21 states have call predecessors, (30), 19 states have call successors, (30) [2023-12-15 22:56:18,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 179 transitions. [2023-12-15 22:56:18,976 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 179 transitions. Word has length 38 [2023-12-15 22:56:18,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:56:18,976 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 179 transitions. [2023-12-15 22:56:18,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-15 22:56:18,977 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 179 transitions. [2023-12-15 22:56:18,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-15 22:56:18,977 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:56:18,977 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:56:18,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-15 22:56:18,978 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:56:18,978 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:56:18,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1769478517, now seen corresponding path program 1 times [2023-12-15 22:56:18,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:56:18,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325062207] [2023-12-15 22:56:18,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:56:18,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:56:18,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:19,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-15 22:56:19,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:19,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:56:19,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:19,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-15 22:56:19,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:19,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:56:19,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:56:19,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325062207] [2023-12-15 22:56:19,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325062207] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:56:19,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:56:19,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 22:56:19,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563660937] [2023-12-15 22:56:19,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:56:19,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 22:56:19,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:56:19,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 22:56:19,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-15 22:56:19,098 INFO L87 Difference]: Start difference. First operand 135 states and 179 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-15 22:56:19,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:56:19,244 INFO L93 Difference]: Finished difference Result 277 states and 379 transitions. [2023-12-15 22:56:19,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 22:56:19,244 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 38 [2023-12-15 22:56:19,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:56:19,247 INFO L225 Difference]: With dead ends: 277 [2023-12-15 22:56:19,247 INFO L226 Difference]: Without dead ends: 144 [2023-12-15 22:56:19,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:56:19,249 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 139 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 22:56:19,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 207 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 22:56:19,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2023-12-15 22:56:19,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 137. [2023-12-15 22:56:19,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 97 states have (on average 1.3608247422680413) internal successors, (132), 105 states have internal predecessors, (132), 19 states have call successors, (19), 15 states have call predecessors, (19), 20 states have return successors, (30), 21 states have call predecessors, (30), 19 states have call successors, (30) [2023-12-15 22:56:19,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 181 transitions. [2023-12-15 22:56:19,273 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 181 transitions. Word has length 38 [2023-12-15 22:56:19,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:56:19,274 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 181 transitions. [2023-12-15 22:56:19,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-15 22:56:19,274 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 181 transitions. [2023-12-15 22:56:19,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-15 22:56:19,275 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:56:19,276 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:56:19,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-15 22:56:19,276 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:56:19,276 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:56:19,276 INFO L85 PathProgramCache]: Analyzing trace with hash 836545037, now seen corresponding path program 1 times [2023-12-15 22:56:19,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:56:19,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191351856] [2023-12-15 22:56:19,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:56:19,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:56:19,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:19,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-15 22:56:19,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:19,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:56:19,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:19,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-15 22:56:19,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:19,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:56:19,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:56:19,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191351856] [2023-12-15 22:56:19,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191351856] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:56:19,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:56:19,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 22:56:19,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301930455] [2023-12-15 22:56:19,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:56:19,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 22:56:19,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:56:19,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 22:56:19,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 22:56:19,362 INFO L87 Difference]: Start difference. First operand 137 states and 181 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-15 22:56:19,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:56:19,536 INFO L93 Difference]: Finished difference Result 395 states and 539 transitions. [2023-12-15 22:56:19,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 22:56:19,537 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 38 [2023-12-15 22:56:19,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:56:19,538 INFO L225 Difference]: With dead ends: 395 [2023-12-15 22:56:19,538 INFO L226 Difference]: Without dead ends: 260 [2023-12-15 22:56:19,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:56:19,539 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 199 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 22:56:19,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 230 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 22:56:19,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2023-12-15 22:56:19,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 252. [2023-12-15 22:56:19,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 179 states have (on average 1.318435754189944) internal successors, (236), 191 states have internal predecessors, (236), 36 states have call successors, (36), 33 states have call predecessors, (36), 36 states have return successors, (62), 37 states have call predecessors, (62), 36 states have call successors, (62) [2023-12-15 22:56:19,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 334 transitions. [2023-12-15 22:56:19,575 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 334 transitions. Word has length 38 [2023-12-15 22:56:19,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:56:19,575 INFO L495 AbstractCegarLoop]: Abstraction has 252 states and 334 transitions. [2023-12-15 22:56:19,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-15 22:56:19,575 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 334 transitions. [2023-12-15 22:56:19,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-15 22:56:19,577 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:56:19,577 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:56:19,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-15 22:56:19,578 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:56:19,578 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:56:19,578 INFO L85 PathProgramCache]: Analyzing trace with hash -503695203, now seen corresponding path program 1 times [2023-12-15 22:56:19,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:56:19,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835589657] [2023-12-15 22:56:19,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:56:19,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:56:19,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:19,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-15 22:56:19,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:19,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:56:19,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:19,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-15 22:56:19,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:19,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-15 22:56:19,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:19,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:56:19,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:56:19,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835589657] [2023-12-15 22:56:19,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835589657] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:56:19,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:56:19,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 22:56:19,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228820879] [2023-12-15 22:56:19,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:56:19,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 22:56:19,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:56:19,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 22:56:19,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 22:56:19,668 INFO L87 Difference]: Start difference. First operand 252 states and 334 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-15 22:56:19,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:56:19,794 INFO L93 Difference]: Finished difference Result 504 states and 667 transitions. [2023-12-15 22:56:19,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-15 22:56:19,795 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 41 [2023-12-15 22:56:19,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:56:19,796 INFO L225 Difference]: With dead ends: 504 [2023-12-15 22:56:19,796 INFO L226 Difference]: Without dead ends: 254 [2023-12-15 22:56:19,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:56:19,798 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 105 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 22:56:19,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 195 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 22:56:19,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2023-12-15 22:56:19,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 251. [2023-12-15 22:56:19,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 178 states have (on average 1.3089887640449438) internal successors, (233), 190 states have internal predecessors, (233), 36 states have call successors, (36), 33 states have call predecessors, (36), 36 states have return successors, (62), 37 states have call predecessors, (62), 36 states have call successors, (62) [2023-12-15 22:56:19,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 331 transitions. [2023-12-15 22:56:19,816 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 331 transitions. Word has length 41 [2023-12-15 22:56:19,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:56:19,817 INFO L495 AbstractCegarLoop]: Abstraction has 251 states and 331 transitions. [2023-12-15 22:56:19,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-15 22:56:19,817 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 331 transitions. [2023-12-15 22:56:19,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-12-15 22:56:19,818 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:56:19,818 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:56:19,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-15 22:56:19,818 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:56:19,819 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:56:19,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1598886413, now seen corresponding path program 1 times [2023-12-15 22:56:19,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:56:19,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920647289] [2023-12-15 22:56:19,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:56:19,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:56:19,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:19,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-15 22:56:19,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:19,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-15 22:56:19,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:19,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:56:19,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:19,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-15 22:56:19,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:19,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:56:19,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:56:19,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920647289] [2023-12-15 22:56:19,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920647289] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:56:19,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:56:19,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 22:56:19,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434919154] [2023-12-15 22:56:19,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:56:19,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 22:56:19,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:56:19,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 22:56:19,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-15 22:56:19,901 INFO L87 Difference]: Start difference. First operand 251 states and 331 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-15 22:56:20,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:56:20,141 INFO L93 Difference]: Finished difference Result 489 states and 656 transitions. [2023-12-15 22:56:20,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-15 22:56:20,141 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 42 [2023-12-15 22:56:20,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:56:20,143 INFO L225 Difference]: With dead ends: 489 [2023-12-15 22:56:20,143 INFO L226 Difference]: Without dead ends: 286 [2023-12-15 22:56:20,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2023-12-15 22:56:20,144 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 190 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 22:56:20,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 236 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 22:56:20,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2023-12-15 22:56:20,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 279. [2023-12-15 22:56:20,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 198 states have (on average 1.2727272727272727) internal successors, (252), 213 states have internal predecessors, (252), 41 states have call successors, (41), 33 states have call predecessors, (41), 39 states have return successors, (58), 42 states have call predecessors, (58), 41 states have call successors, (58) [2023-12-15 22:56:20,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 351 transitions. [2023-12-15 22:56:20,159 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 351 transitions. Word has length 42 [2023-12-15 22:56:20,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:56:20,159 INFO L495 AbstractCegarLoop]: Abstraction has 279 states and 351 transitions. [2023-12-15 22:56:20,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-15 22:56:20,159 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 351 transitions. [2023-12-15 22:56:20,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-15 22:56:20,160 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:56:20,160 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:56:20,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-15 22:56:20,160 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:56:20,160 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:56:20,160 INFO L85 PathProgramCache]: Analyzing trace with hash 659363893, now seen corresponding path program 1 times [2023-12-15 22:56:20,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:56:20,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298739026] [2023-12-15 22:56:20,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:56:20,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:56:20,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:20,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-15 22:56:20,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:20,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-15 22:56:20,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:20,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:56:20,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:20,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-15 22:56:20,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:20,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-15 22:56:20,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:20,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:56:20,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:56:20,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298739026] [2023-12-15 22:56:20,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298739026] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:56:20,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:56:20,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 22:56:20,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249909577] [2023-12-15 22:56:20,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:56:20,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 22:56:20,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:56:20,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 22:56:20,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-15 22:56:20,206 INFO L87 Difference]: Start difference. First operand 279 states and 351 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 22:56:20,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:56:20,376 INFO L93 Difference]: Finished difference Result 510 states and 652 transitions. [2023-12-15 22:56:20,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-15 22:56:20,377 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 45 [2023-12-15 22:56:20,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:56:20,378 INFO L225 Difference]: With dead ends: 510 [2023-12-15 22:56:20,378 INFO L226 Difference]: Without dead ends: 281 [2023-12-15 22:56:20,379 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:56:20,379 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 128 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 22:56:20,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 166 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 22:56:20,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2023-12-15 22:56:20,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 277. [2023-12-15 22:56:20,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 196 states have (on average 1.2704081632653061) internal successors, (249), 211 states have internal predecessors, (249), 41 states have call successors, (41), 33 states have call predecessors, (41), 39 states have return successors, (58), 42 states have call predecessors, (58), 41 states have call successors, (58) [2023-12-15 22:56:20,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 348 transitions. [2023-12-15 22:56:20,393 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 348 transitions. Word has length 45 [2023-12-15 22:56:20,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:56:20,393 INFO L495 AbstractCegarLoop]: Abstraction has 277 states and 348 transitions. [2023-12-15 22:56:20,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 22:56:20,393 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 348 transitions. [2023-12-15 22:56:20,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-15 22:56:20,394 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:56:20,394 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:56:20,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-15 22:56:20,394 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:56:20,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:56:20,394 INFO L85 PathProgramCache]: Analyzing trace with hash -158284557, now seen corresponding path program 1 times [2023-12-15 22:56:20,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:56:20,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119692208] [2023-12-15 22:56:20,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:56:20,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:56:20,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:20,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-15 22:56:20,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:20,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-15 22:56:20,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:20,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:56:20,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:20,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-15 22:56:20,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:20,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-15 22:56:20,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:20,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:56:20,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:56:20,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119692208] [2023-12-15 22:56:20,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119692208] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:56:20,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:56:20,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 22:56:20,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581151615] [2023-12-15 22:56:20,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:56:20,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 22:56:20,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:56:20,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 22:56:20,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-15 22:56:20,449 INFO L87 Difference]: Start difference. First operand 277 states and 348 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 22:56:20,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:56:20,612 INFO L93 Difference]: Finished difference Result 485 states and 617 transitions. [2023-12-15 22:56:20,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-15 22:56:20,613 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 45 [2023-12-15 22:56:20,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:56:20,614 INFO L225 Difference]: With dead ends: 485 [2023-12-15 22:56:20,614 INFO L226 Difference]: Without dead ends: 258 [2023-12-15 22:56:20,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:56:20,615 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 121 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 22:56:20,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 175 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 22:56:20,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2023-12-15 22:56:20,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 254. [2023-12-15 22:56:20,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 181 states have (on average 1.2651933701657458) internal successors, (229), 195 states have internal predecessors, (229), 38 states have call successors, (38), 30 states have call predecessors, (38), 34 states have return successors, (49), 37 states have call predecessors, (49), 38 states have call successors, (49) [2023-12-15 22:56:20,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 316 transitions. [2023-12-15 22:56:20,648 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 316 transitions. Word has length 45 [2023-12-15 22:56:20,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:56:20,648 INFO L495 AbstractCegarLoop]: Abstraction has 254 states and 316 transitions. [2023-12-15 22:56:20,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 22:56:20,648 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 316 transitions. [2023-12-15 22:56:20,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-15 22:56:20,649 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:56:20,649 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2023-12-15 22:56:20,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-15 22:56:20,649 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:56:20,649 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:56:20,649 INFO L85 PathProgramCache]: Analyzing trace with hash -823320859, now seen corresponding path program 1 times [2023-12-15 22:56:20,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:56:20,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087411528] [2023-12-15 22:56:20,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:56:20,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:56:20,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:20,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-15 22:56:20,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:20,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-15 22:56:20,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:20,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:56:20,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:20,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:56:20,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:20,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 22:56:20,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:20,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-15 22:56:20,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:20,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-15 22:56:20,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:20,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-15 22:56:20,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:20,813 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-15 22:56:20,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:56:20,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087411528] [2023-12-15 22:56:20,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087411528] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:56:20,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1177390273] [2023-12-15 22:56:20,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:56:20,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:56:20,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:56:20,816 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 22:56:20,818 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-15 22:56:20,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:20,894 INFO L262 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-15 22:56:20,898 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:56:21,011 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-15 22:56:21,011 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 22:56:21,184 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-15 22:56:21,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1177390273] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 22:56:21,184 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-15 22:56:21,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 8] total 14 [2023-12-15 22:56:21,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432084701] [2023-12-15 22:56:21,184 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-15 22:56:21,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-15 22:56:21,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:56:21,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-15 22:56:21,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2023-12-15 22:56:21,186 INFO L87 Difference]: Start difference. First operand 254 states and 316 transitions. Second operand has 14 states, 14 states have (on average 5.642857142857143) internal successors, (79), 11 states have internal predecessors, (79), 7 states have call successors, (22), 9 states have call predecessors, (22), 8 states have return successors, (19), 6 states have call predecessors, (19), 7 states have call successors, (19) [2023-12-15 22:56:21,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:56:21,534 INFO L93 Difference]: Finished difference Result 487 states and 636 transitions. [2023-12-15 22:56:21,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-15 22:56:21,535 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.642857142857143) internal successors, (79), 11 states have internal predecessors, (79), 7 states have call successors, (22), 9 states have call predecessors, (22), 8 states have return successors, (19), 6 states have call predecessors, (19), 7 states have call successors, (19) Word has length 72 [2023-12-15 22:56:21,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:56:21,535 INFO L225 Difference]: With dead ends: 487 [2023-12-15 22:56:21,535 INFO L226 Difference]: Without dead ends: 0 [2023-12-15 22:56:21,536 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 152 SyntacticMatches, 6 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=245, Invalid=457, Unknown=0, NotChecked=0, Total=702 [2023-12-15 22:56:21,536 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 284 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 22:56:21,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 227 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 22:56:21,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-15 22:56:21,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-15 22:56:21,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 22:56:21,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-15 22:56:21,537 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 72 [2023-12-15 22:56:21,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:56:21,537 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-15 22:56:21,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.642857142857143) internal successors, (79), 11 states have internal predecessors, (79), 7 states have call successors, (22), 9 states have call predecessors, (22), 8 states have return successors, (19), 6 states have call predecessors, (19), 7 states have call successors, (19) [2023-12-15 22:56:21,538 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-15 22:56:21,538 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-15 22:56:21,555 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-15 22:56:21,564 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-15 22:56:21,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-12-15 22:56:21,761 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-15 22:56:22,615 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 898 905) no Hoare annotation was computed. [2023-12-15 22:56:22,615 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 898 905) the Hoare annotation is: (or (not (= 1 ~systemActive~0)) (< 1 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 1)) (= ~pumpRunning~0 1)) [2023-12-15 22:56:22,615 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 805 811) no Hoare annotation was computed. [2023-12-15 22:56:22,615 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 805 811) the Hoare annotation is: true [2023-12-15 22:56:22,615 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 84 95) the Hoare annotation is: true [2023-12-15 22:56:22,615 INFO L899 garLoopResultBuilder]: For program point L88-1(lines 84 95) no Hoare annotation was computed. [2023-12-15 22:56:22,616 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 84 95) no Hoare annotation was computed. [2023-12-15 22:56:22,616 INFO L899 garLoopResultBuilder]: For program point L64(lines 64 68) no Hoare annotation was computed. [2023-12-15 22:56:22,616 INFO L899 garLoopResultBuilder]: For program point L64-2(lines 60 71) no Hoare annotation was computed. [2023-12-15 22:56:22,616 INFO L895 garLoopResultBuilder]: At program point L911(line 911) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (< 2 |old(~waterLevel~0)|))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1) (or (and (<= ~waterLevel~0 1) (<= ~waterLevel~0 |old(~waterLevel~0)|) (= ~pumpRunning~0 1)) .cse0 (not (= |old(~pumpRunning~0)| 1)) .cse1))) [2023-12-15 22:56:22,616 INFO L899 garLoopResultBuilder]: For program point L911-1(line 911) no Hoare annotation was computed. [2023-12-15 22:56:22,616 INFO L899 garLoopResultBuilder]: For program point L267(line 267) no Hoare annotation was computed. [2023-12-15 22:56:22,616 INFO L899 garLoopResultBuilder]: For program point L292(lines 292 298) no Hoare annotation was computed. [2023-12-15 22:56:22,616 INFO L899 garLoopResultBuilder]: For program point L288(lines 288 301) no Hoare annotation was computed. [2023-12-15 22:56:22,616 INFO L899 garLoopResultBuilder]: For program point L288-1(lines 273 305) no Hoare annotation was computed. [2023-12-15 22:56:22,616 INFO L895 garLoopResultBuilder]: At program point L280(line 280) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 1)) (.cse4 (= ~pumpRunning~0 0)) (.cse0 (<= ~waterLevel~0 1)) (.cse3 (not (= 1 ~systemActive~0))) (.cse5 (< 2 |old(~waterLevel~0)|))) (and (let ((.cse1 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (or (and .cse0 .cse1 .cse2) .cse3 (not (= |old(~pumpRunning~0)| 1)) (and .cse4 .cse0 .cse1) .cse5)) (let ((.cse6 (= |old(~waterLevel~0)| ~waterLevel~0))) (or (and (= 2 ~waterLevel~0) .cse6 .cse2) (and .cse4 .cse0 .cse6) (not (= |old(~pumpRunning~0)| 0)) .cse3 .cse5)))) [2023-12-15 22:56:22,616 INFO L899 garLoopResultBuilder]: For program point L792-1(lines 792 798) no Hoare annotation was computed. [2023-12-15 22:56:22,616 INFO L899 garLoopResultBuilder]: For program point L280-1(line 280) no Hoare annotation was computed. [2023-12-15 22:56:22,616 INFO L895 garLoopResultBuilder]: At program point L879(line 879) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (< 2 |old(~waterLevel~0)|))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1) (or (and (<= ~waterLevel~0 1) (<= ~waterLevel~0 |old(~waterLevel~0)|) (= ~pumpRunning~0 1)) .cse0 (not (= |old(~pumpRunning~0)| 1)) .cse1))) [2023-12-15 22:56:22,616 INFO L895 garLoopResultBuilder]: At program point L875(line 875) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (< 2 |old(~waterLevel~0)|))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1) (or (and (<= ~waterLevel~0 1) (<= ~waterLevel~0 |old(~waterLevel~0)|) (= ~pumpRunning~0 1)) .cse0 (not (= |old(~pumpRunning~0)| 1)) .cse1))) [2023-12-15 22:56:22,617 INFO L895 garLoopResultBuilder]: At program point L884(line 884) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (< 2 |old(~waterLevel~0)|))) (and (or .cse0 (not (= |old(~pumpRunning~0)| 1)) .cse1) (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse0 .cse1))) [2023-12-15 22:56:22,617 INFO L899 garLoopResultBuilder]: For program point L884-1(lines 865 889) no Hoare annotation was computed. [2023-12-15 22:56:22,617 INFO L899 garLoopResultBuilder]: For program point L785-1(lines 784 803) no Hoare annotation was computed. [2023-12-15 22:56:22,617 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 781 804) the Hoare annotation is: (let ((.cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (< 2 |old(~waterLevel~0)|))) (and (or .cse0 (not (= |old(~pumpRunning~0)| 1)) .cse1 (and .cse2 (= ~pumpRunning~0 1))) (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) .cse2) .cse0 .cse1))) [2023-12-15 22:56:22,617 INFO L899 garLoopResultBuilder]: For program point L282(lines 282 302) no Hoare annotation was computed. [2023-12-15 22:56:22,617 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 781 804) no Hoare annotation was computed. [2023-12-15 22:56:22,617 INFO L899 garLoopResultBuilder]: For program point L873(lines 873 881) no Hoare annotation was computed. [2023-12-15 22:56:22,617 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 267) no Hoare annotation was computed. [2023-12-15 22:56:22,617 INFO L899 garLoopResultBuilder]: For program point L869(lines 869 886) no Hoare annotation was computed. [2023-12-15 22:56:22,617 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 163 192) no Hoare annotation was computed. [2023-12-15 22:56:22,617 INFO L899 garLoopResultBuilder]: For program point L188(lines 163 192) no Hoare annotation was computed. [2023-12-15 22:56:22,617 INFO L899 garLoopResultBuilder]: For program point L184(line 184) no Hoare annotation was computed. [2023-12-15 22:56:22,617 INFO L899 garLoopResultBuilder]: For program point L177(lines 177 181) no Hoare annotation was computed. [2023-12-15 22:56:22,617 INFO L902 garLoopResultBuilder]: At program point L177-1(lines 177 181) the Hoare annotation is: true [2023-12-15 22:56:22,617 INFO L902 garLoopResultBuilder]: At program point L173-2(lines 173 187) the Hoare annotation is: true [2023-12-15 22:56:22,617 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 163 192) the Hoare annotation is: true [2023-12-15 22:56:22,617 INFO L902 garLoopResultBuilder]: At program point L169(line 169) the Hoare annotation is: true [2023-12-15 22:56:22,617 INFO L899 garLoopResultBuilder]: For program point L169-1(line 169) no Hoare annotation was computed. [2023-12-15 22:56:22,618 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 96 104) the Hoare annotation is: true [2023-12-15 22:56:22,618 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 96 104) no Hoare annotation was computed. [2023-12-15 22:56:22,618 INFO L899 garLoopResultBuilder]: For program point L729(lines 729 735) no Hoare annotation was computed. [2023-12-15 22:56:22,618 INFO L899 garLoopResultBuilder]: For program point L729-1(lines 729 735) no Hoare annotation was computed. [2023-12-15 22:56:22,618 INFO L895 garLoopResultBuilder]: At program point L767(lines 718 768) the Hoare annotation is: false [2023-12-15 22:56:22,618 INFO L899 garLoopResultBuilder]: For program point L739(lines 739 745) no Hoare annotation was computed. [2023-12-15 22:56:22,618 INFO L899 garLoopResultBuilder]: For program point L739-1(lines 739 745) no Hoare annotation was computed. [2023-12-15 22:56:22,618 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-15 22:56:22,618 INFO L895 garLoopResultBuilder]: At program point L764(lines 719 766) the Hoare annotation is: (let ((.cse3 (<= ~waterLevel~0 1)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (= ~pumpRunning~0 1))) (or (and (= 2 ~waterLevel~0) .cse0 .cse1 .cse2) (and (= ~pumpRunning~0 0) .cse3 .cse0 .cse1) (and .cse3 .cse0 .cse1 .cse2))) [2023-12-15 22:56:22,618 INFO L895 garLoopResultBuilder]: At program point L731(line 731) the Hoare annotation is: (let ((.cse3 (<= ~waterLevel~0 1)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (= ~pumpRunning~0 1))) (or (and (= 2 ~waterLevel~0) .cse0 .cse1 .cse2) (and (= ~pumpRunning~0 0) .cse3 .cse0 .cse1) (and .cse3 .cse0 .cse1 .cse2))) [2023-12-15 22:56:22,618 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-15 22:56:22,618 INFO L899 garLoopResultBuilder]: For program point L249(lines 249 256) no Hoare annotation was computed. [2023-12-15 22:56:22,618 INFO L899 garLoopResultBuilder]: For program point L249-2(lines 249 256) no Hoare annotation was computed. [2023-12-15 22:56:22,618 INFO L899 garLoopResultBuilder]: For program point L757(lines 757 761) no Hoare annotation was computed. [2023-12-15 22:56:22,618 INFO L895 garLoopResultBuilder]: At program point L757-2(lines 749 762) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (= ~pumpRunning~0 1))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1 (<= ~waterLevel~0 2)) (and (= 2 ~waterLevel~0) .cse0 .cse1 .cse2) (and (<= ~waterLevel~0 1) .cse0 .cse1 .cse2))) [2023-12-15 22:56:22,618 INFO L899 garLoopResultBuilder]: For program point L720(lines 719 766) no Hoare annotation was computed. [2023-12-15 22:56:22,618 INFO L899 garLoopResultBuilder]: For program point L749(lines 749 762) no Hoare annotation was computed. [2023-12-15 22:56:22,618 INFO L895 garLoopResultBuilder]: At program point L741(line 741) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (= ~pumpRunning~0 1))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1 (<= ~waterLevel~0 2)) (and (= 2 ~waterLevel~0) .cse0 .cse1 .cse2) (and (<= ~waterLevel~0 1) .cse0 .cse1 .cse2))) [2023-12-15 22:56:22,618 INFO L899 garLoopResultBuilder]: For program point L770(lines 709 774) no Hoare annotation was computed. [2023-12-15 22:56:22,618 INFO L895 garLoopResultBuilder]: At program point L832(line 832) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (< 1 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 1)) (= ~pumpRunning~0 1)) (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) .cse0))) [2023-12-15 22:56:22,619 INFO L899 garLoopResultBuilder]: For program point L832-1(lines 813 837) no Hoare annotation was computed. [2023-12-15 22:56:22,619 INFO L899 garLoopResultBuilder]: For program point L141(lines 141 147) no Hoare annotation was computed. [2023-12-15 22:56:22,619 INFO L899 garLoopResultBuilder]: For program point L971(lines 971 975) no Hoare annotation was computed. [2023-12-15 22:56:22,619 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 813 837) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (< 1 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 1)) (= ~pumpRunning~0 1)) (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0))) [2023-12-15 22:56:22,619 INFO L899 garLoopResultBuilder]: For program point L971-2(lines 971 975) no Hoare annotation was computed. [2023-12-15 22:56:22,619 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDry_returnLabel#1(lines 137 150) no Hoare annotation was computed. [2023-12-15 22:56:22,619 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 813 837) no Hoare annotation was computed. [2023-12-15 22:56:22,619 INFO L895 garLoopResultBuilder]: At program point L827(line 827) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) .cse0 (and (= ~pumpRunning~0 0) (<= ~waterLevel~0 1) (= |processEnvironment__wrappee__highWaterSensor_~tmp~6#1| 0))) (or .cse0 (< 1 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 1))))) [2023-12-15 22:56:22,619 INFO L899 garLoopResultBuilder]: For program point L821(lines 821 829) no Hoare annotation was computed. [2023-12-15 22:56:22,619 INFO L899 garLoopResultBuilder]: For program point L817(lines 817 834) no Hoare annotation was computed. [2023-12-15 22:56:22,619 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 72 83) no Hoare annotation was computed. [2023-12-15 22:56:22,619 INFO L899 garLoopResultBuilder]: For program point L76-1(lines 72 83) no Hoare annotation was computed. [2023-12-15 22:56:22,619 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 72 83) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 (not (= ~pumpRunning~0 1)) .cse1 (< 2 |old(~waterLevel~0)|)) (or (< 1 |old(~waterLevel~0)|) (not (= ~pumpRunning~0 0)) .cse0 .cse1))) [2023-12-15 22:56:22,619 INFO L895 garLoopResultBuilder]: At program point L853(line 853) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (< 1 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 1)) (= ~pumpRunning~0 1)) (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) .cse0))) [2023-12-15 22:56:22,619 INFO L895 garLoopResultBuilder]: At program point L849(line 849) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (< 1 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 1)) (= ~pumpRunning~0 1)) (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) .cse0))) [2023-12-15 22:56:22,619 INFO L899 garLoopResultBuilder]: For program point L847(lines 847 855) no Hoare annotation was computed. [2023-12-15 22:56:22,619 INFO L899 garLoopResultBuilder]: For program point L843(lines 843 860) no Hoare annotation was computed. [2023-12-15 22:56:22,619 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 839 863) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (< 1 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 1)) (= ~pumpRunning~0 1)) (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0))) [2023-12-15 22:56:22,620 INFO L899 garLoopResultBuilder]: For program point L990(lines 990 994) no Hoare annotation was computed. [2023-12-15 22:56:22,620 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__lowWaterSensorEXIT(lines 839 863) no Hoare annotation was computed. [2023-12-15 22:56:22,620 INFO L899 garLoopResultBuilder]: For program point L990-2(lines 990 994) no Hoare annotation was computed. [2023-12-15 22:56:22,620 INFO L895 garLoopResultBuilder]: At program point L858(line 858) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0) (or .cse0 (< 1 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 1))))) [2023-12-15 22:56:22,620 INFO L899 garLoopResultBuilder]: For program point L858-1(lines 839 863) no Hoare annotation was computed. [2023-12-15 22:56:22,621 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:56:22,623 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 22:56:22,630 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 10:56:22 BoogieIcfgContainer [2023-12-15 22:56:22,630 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 22:56:22,631 INFO L158 Benchmark]: Toolchain (without parser) took 5730.91ms. Allocated memory was 186.6MB in the beginning and 238.0MB in the end (delta: 51.4MB). Free memory was 139.0MB in the beginning and 109.8MB in the end (delta: 29.2MB). Peak memory consumption was 81.0MB. Max. memory is 8.0GB. [2023-12-15 22:56:22,631 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 186.6MB. Free memory is still 143.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 22:56:22,631 INFO L158 Benchmark]: CACSL2BoogieTranslator took 359.99ms. Allocated memory is still 186.6MB. Free memory was 139.0MB in the beginning and 119.1MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-12-15 22:56:22,631 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.15ms. Allocated memory is still 186.6MB. Free memory was 118.6MB in the beginning and 116.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-15 22:56:22,631 INFO L158 Benchmark]: Boogie Preprocessor took 58.81ms. Allocated memory is still 186.6MB. Free memory was 116.5MB in the beginning and 114.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-15 22:56:22,631 INFO L158 Benchmark]: RCFGBuilder took 358.72ms. Allocated memory is still 186.6MB. Free memory was 113.8MB in the beginning and 90.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2023-12-15 22:56:22,632 INFO L158 Benchmark]: TraceAbstraction took 4906.99ms. Allocated memory was 186.6MB in the beginning and 238.0MB in the end (delta: 51.4MB). Free memory was 89.7MB in the beginning and 109.8MB in the end (delta: -20.1MB). Peak memory consumption was 31.7MB. Max. memory is 8.0GB. [2023-12-15 22:56:22,632 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43ms. Allocated memory is still 186.6MB. Free memory is still 143.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 359.99ms. Allocated memory is still 186.6MB. Free memory was 139.0MB in the beginning and 119.1MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 41.15ms. Allocated memory is still 186.6MB. Free memory was 118.6MB in the beginning and 116.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 58.81ms. Allocated memory is still 186.6MB. Free memory was 116.5MB in the beginning and 114.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 358.72ms. Allocated memory is still 186.6MB. Free memory was 113.8MB in the beginning and 90.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * TraceAbstraction took 4906.99ms. Allocated memory was 186.6MB in the beginning and 238.0MB in the end (delta: 51.4MB). Free memory was 89.7MB in the beginning and 109.8MB in the end (delta: -20.1MB). Peak memory consumption was 31.7MB. 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: 160]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [160] - GenericResultAtLocation [Line: 262]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [262] - GenericResultAtLocation [Line: 271]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [271] - GenericResultAtLocation [Line: 306]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [306] - GenericResultAtLocation [Line: 341]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [341] - GenericResultAtLocation [Line: 707]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [707] - GenericResultAtLocation [Line: 775]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [775] * 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: 267]: 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, 81 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.9s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1494 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1454 mSDsluCounter, 2121 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1311 mSDsCounter, 455 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2121 IncrementalHoareTripleChecker+Invalid, 2576 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 455 mSolverCounterUnsat, 810 mSDtfsCounter, 2121 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 338 GetRequests, 251 SyntacticMatches, 7 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=279occurred in iteration=9, InterpolantAutomatonStates: 84, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 12 MinimizatonAttempts, 41 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 27 LocationsWithAnnotation, 723 PreInvPairs, 782 NumberOfFragments, 664 HoareAnnotationTreeSize, 723 FormulaSimplifications, 345 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 27 FormulaSimplificationsInter, 2061 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 518 NumberOfCodeBlocks, 518 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 576 ConstructedInterpolants, 0 QuantifiedInterpolants, 1136 SizeOfPredicates, 3 NumberOfNonLiveVariables, 281 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 14 InterpolantComputations, 11 PerfectInterpolantSequences, 43/68 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: 173]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 718]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 719]: Loop Invariant Derived loop invariant: ((((((2 == waterLevel) && (1 == systemActive)) && (splverifierCounter == 0)) && (pumpRunning == 1)) || ((((pumpRunning == 0) && (waterLevel <= 1)) && (1 == systemActive)) && (splverifierCounter == 0))) || ((((waterLevel <= 1) && (1 == systemActive)) && (splverifierCounter == 0)) && (pumpRunning == 1))) RESULT: Ultimate proved your program to be correct! [2023-12-15 22:56:22,650 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...