/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product45.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 10:12:05,301 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 10:12:05,367 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-21 10:12:05,371 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 10:12:05,372 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 10:12:05,393 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 10:12:05,394 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 10:12:05,394 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 10:12:05,394 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 10:12:05,397 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 10:12:05,397 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 10:12:05,398 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 10:12:05,398 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 10:12:05,399 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 10:12:05,400 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 10:12:05,400 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 10:12:05,400 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 10:12:05,400 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 10:12:05,400 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-21 10:12:05,400 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 10:12:05,400 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 10:12:05,401 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 10:12:05,401 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 10:12:05,401 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 10:12:05,401 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 10:12:05,401 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 10:12:05,401 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 10:12:05,402 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 10:12:05,402 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 10:12:05,402 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 10:12:05,403 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 10:12:05,403 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 10:12:05,403 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 10:12:05,403 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 10:12:05,403 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 10:12:05,404 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 10:12:05,404 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-21 10:12:05,404 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-21 10:12:05,404 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 10:12:05,404 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 10:12:05,404 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 10:12:05,404 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 10:12:05,404 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 10:12:05,405 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-21 10:12:05,622 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 10:12:05,641 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 10:12:05,643 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 10:12:05,644 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 10:12:05,644 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 10:12:05,645 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product45.cil.c [2023-12-21 10:12:06,752 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 10:12:06,970 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 10:12:06,970 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product45.cil.c [2023-12-21 10:12:06,981 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43a9903e1/d74b07abddc64b8d8833259562efd249/FLAGfa1df4cc3 [2023-12-21 10:12:06,991 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43a9903e1/d74b07abddc64b8d8833259562efd249 [2023-12-21 10:12:06,992 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 10:12:06,993 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 10:12:06,994 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 10:12:06,994 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 10:12:06,998 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 10:12:06,998 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:12:06" (1/1) ... [2023-12-21 10:12:06,999 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a4d40fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:12:06, skipping insertion in model container [2023-12-21 10:12:06,999 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:12:06" (1/1) ... [2023-12-21 10:12:07,035 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 10:12:07,184 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_product45.cil.c[8617,8630] [2023-12-21 10:12:07,269 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 10:12:07,284 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 10:12:07,291 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [49] [2023-12-21 10:12:07,293 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [87] [2023-12-21 10:12:07,296 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [186] [2023-12-21 10:12:07,296 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [288] [2023-12-21 10:12:07,297 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [485] [2023-12-21 10:12:07,297 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [550] [2023-12-21 10:12:07,297 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [585] [2023-12-21 10:12:07,297 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [594] [2023-12-21 10:12:07,329 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_product45.cil.c[8617,8630] [2023-12-21 10:12:07,380 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 10:12:07,394 INFO L206 MainTranslator]: Completed translation [2023-12-21 10:12:07,395 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:12:07 WrapperNode [2023-12-21 10:12:07,395 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 10:12:07,396 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 10:12:07,396 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 10:12:07,396 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 10:12:07,401 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:12:07" (1/1) ... [2023-12-21 10:12:07,420 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:12:07" (1/1) ... [2023-12-21 10:12:07,446 INFO L138 Inliner]: procedures = 54, calls = 100, calls flagged for inlining = 22, calls inlined = 19, statements flattened = 197 [2023-12-21 10:12:07,446 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 10:12:07,447 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 10:12:07,447 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 10:12:07,447 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 10:12:07,455 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:12:07" (1/1) ... [2023-12-21 10:12:07,455 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:12:07" (1/1) ... [2023-12-21 10:12:07,456 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:12:07" (1/1) ... [2023-12-21 10:12:07,475 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]. [2023-12-21 10:12:07,475 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:12:07" (1/1) ... [2023-12-21 10:12:07,475 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:12:07" (1/1) ... [2023-12-21 10:12:07,478 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:12:07" (1/1) ... [2023-12-21 10:12:07,481 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:12:07" (1/1) ... [2023-12-21 10:12:07,482 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:12:07" (1/1) ... [2023-12-21 10:12:07,483 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:12:07" (1/1) ... [2023-12-21 10:12:07,484 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 10:12:07,485 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 10:12:07,485 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 10:12:07,485 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 10:12:07,487 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:12:07" (1/1) ... [2023-12-21 10:12:07,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 10:12:07,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 10:12:07,529 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) [2023-12-21 10:12:07,568 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 [2023-12-21 10:12:07,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 10:12:07,575 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-12-21 10:12:07,575 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-12-21 10:12:07,575 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-21 10:12:07,575 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-21 10:12:07,575 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-21 10:12:07,575 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-21 10:12:07,575 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-12-21 10:12:07,575 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-12-21 10:12:07,575 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-12-21 10:12:07,576 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-12-21 10:12:07,576 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2023-12-21 10:12:07,576 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2023-12-21 10:12:07,576 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-12-21 10:12:07,576 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-12-21 10:12:07,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-21 10:12:07,576 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-12-21 10:12:07,576 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-12-21 10:12:07,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 10:12:07,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 10:12:07,653 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 10:12:07,673 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 10:12:07,923 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 10:12:07,979 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 10:12:07,979 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-21 10:12:07,980 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:12:07 BoogieIcfgContainer [2023-12-21 10:12:07,980 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 10:12:07,981 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 10:12:07,982 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 10:12:07,984 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 10:12:07,984 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 10:12:06" (1/3) ... [2023-12-21 10:12:07,985 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31cf1b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 10:12:07, skipping insertion in model container [2023-12-21 10:12:07,986 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:12:07" (2/3) ... [2023-12-21 10:12:07,986 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31cf1b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 10:12:07, skipping insertion in model container [2023-12-21 10:12:07,986 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:12:07" (3/3) ... [2023-12-21 10:12:07,987 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product45.cil.c [2023-12-21 10:12:07,999 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 10:12:07,999 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-21 10:12:08,049 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 10:12:08,054 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;@24f407e8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 10:12:08,055 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-21 10:12:08,059 INFO L276 IsEmpty]: Start isEmpty. Operand has 76 states, 52 states have (on average 1.5192307692307692) internal successors, (79), 60 states have internal predecessors, (79), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-21 10:12:08,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-21 10:12:08,067 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:12:08,068 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 10:12:08,068 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:12:08,073 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:12:08,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1414612338, now seen corresponding path program 1 times [2023-12-21 10:12:08,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:12:08,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172487592] [2023-12-21 10:12:08,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:12:08,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:12:08,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:08,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-21 10:12:08,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:08,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 10:12:08,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:12:08,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172487592] [2023-12-21 10:12:08,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172487592] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:12:08,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 10:12:08,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-21 10:12:08,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063650453] [2023-12-21 10:12:08,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:12:08,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-21 10:12:08,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:12:08,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-21 10:12:08,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-21 10:12:08,271 INFO L87 Difference]: Start difference. First operand has 76 states, 52 states have (on average 1.5192307692307692) internal successors, (79), 60 states have internal predecessors, (79), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) 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) [2023-12-21 10:12:08,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:12:08,327 INFO L93 Difference]: Finished difference Result 150 states and 215 transitions. [2023-12-21 10:12:08,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-21 10:12:08,329 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 [2023-12-21 10:12:08,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:12:08,335 INFO L225 Difference]: With dead ends: 150 [2023-12-21 10:12:08,335 INFO L226 Difference]: Without dead ends: 71 [2023-12-21 10:12:08,339 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 [2023-12-21 10:12:08,342 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 10:12:08,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 88 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 10:12:08,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2023-12-21 10:12:08,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2023-12-21 10:12:08,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 49 states have (on average 1.4081632653061225) internal successors, (69), 56 states have internal predecessors, (69), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 11 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-21 10:12:08,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 96 transitions. [2023-12-21 10:12:08,389 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 96 transitions. Word has length 17 [2023-12-21 10:12:08,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:12:08,390 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 96 transitions. [2023-12-21 10:12:08,390 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) [2023-12-21 10:12:08,390 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 96 transitions. [2023-12-21 10:12:08,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-21 10:12:08,393 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:12:08,393 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 10:12:08,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-21 10:12:08,393 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:12:08,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:12:08,394 INFO L85 PathProgramCache]: Analyzing trace with hash 573335574, now seen corresponding path program 1 times [2023-12-21 10:12:08,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:12:08,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031531060] [2023-12-21 10:12:08,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:12:08,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:12:08,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:08,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-21 10:12:08,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:08,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 10:12:08,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:12:08,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031531060] [2023-12-21 10:12:08,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031531060] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:12:08,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 10:12:08,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 10:12:08,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522908798] [2023-12-21 10:12:08,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:12:08,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 10:12:08,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:12:08,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 10:12:08,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 10:12:08,477 INFO L87 Difference]: Start difference. First operand 71 states and 96 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) [2023-12-21 10:12:08,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:12:08,500 INFO L93 Difference]: Finished difference Result 115 states and 155 transitions. [2023-12-21 10:12:08,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 10:12:08,500 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 [2023-12-21 10:12:08,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:12:08,501 INFO L225 Difference]: With dead ends: 115 [2023-12-21 10:12:08,501 INFO L226 Difference]: Without dead ends: 63 [2023-12-21 10:12:08,502 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 [2023-12-21 10:12:08,503 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 11 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 10:12:08,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 134 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 10:12:08,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2023-12-21 10:12:08,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2023-12-21 10:12:08,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 44 states have (on average 1.4318181818181819) internal successors, (63), 51 states have internal predecessors, (63), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2023-12-21 10:12:08,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 85 transitions. [2023-12-21 10:12:08,509 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 85 transitions. Word has length 18 [2023-12-21 10:12:08,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:12:08,509 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 85 transitions. [2023-12-21 10:12:08,509 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) [2023-12-21 10:12:08,509 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 85 transitions. [2023-12-21 10:12:08,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-21 10:12:08,510 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:12:08,510 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] [2023-12-21 10:12:08,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-21 10:12:08,510 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:12:08,511 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:12:08,511 INFO L85 PathProgramCache]: Analyzing trace with hash -731281980, now seen corresponding path program 1 times [2023-12-21 10:12:08,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:12:08,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694804718] [2023-12-21 10:12:08,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:12:08,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:12:08,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:08,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-21 10:12:08,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:08,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 10:12:08,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:12:08,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694804718] [2023-12-21 10:12:08,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694804718] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:12:08,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 10:12:08,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 10:12:08,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970849999] [2023-12-21 10:12:08,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:12:08,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 10:12:08,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:12:08,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 10:12:08,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 10:12:08,565 INFO L87 Difference]: Start difference. First operand 63 states and 85 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) [2023-12-21 10:12:08,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:12:08,586 INFO L93 Difference]: Finished difference Result 124 states and 169 transitions. [2023-12-21 10:12:08,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 10:12:08,587 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 [2023-12-21 10:12:08,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:12:08,588 INFO L225 Difference]: With dead ends: 124 [2023-12-21 10:12:08,588 INFO L226 Difference]: Without dead ends: 63 [2023-12-21 10:12:08,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 10:12:08,589 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 73 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 10:12:08,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 72 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 10:12:08,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2023-12-21 10:12:08,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2023-12-21 10:12:08,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 44 states have (on average 1.4090909090909092) internal successors, (62), 51 states have internal predecessors, (62), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2023-12-21 10:12:08,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 84 transitions. [2023-12-21 10:12:08,595 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 84 transitions. Word has length 21 [2023-12-21 10:12:08,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:12:08,596 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 84 transitions. [2023-12-21 10:12:08,596 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) [2023-12-21 10:12:08,596 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 84 transitions. [2023-12-21 10:12:08,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-21 10:12:08,597 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:12:08,597 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 10:12:08,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-21 10:12:08,597 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:12:08,598 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:12:08,598 INFO L85 PathProgramCache]: Analyzing trace with hash 2116982290, now seen corresponding path program 1 times [2023-12-21 10:12:08,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:12:08,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254212552] [2023-12-21 10:12:08,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:12:08,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:12:08,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:08,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-21 10:12:08,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:08,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 10:12:08,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:08,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-12-21 10:12:08,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:08,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 10:12:08,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:12:08,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254212552] [2023-12-21 10:12:08,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254212552] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:12:08,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 10:12:08,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 10:12:08,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108614131] [2023-12-21 10:12:08,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:12:08,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 10:12:08,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:12:08,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 10:12:08,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 10:12:08,674 INFO L87 Difference]: Start difference. First operand 63 states and 84 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-21 10:12:08,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:12:08,837 INFO L93 Difference]: Finished difference Result 194 states and 256 transitions. [2023-12-21 10:12:08,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 10:12:08,839 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 4 states have call successors, (4), 2 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 31 [2023-12-21 10:12:08,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:12:08,841 INFO L225 Difference]: With dead ends: 194 [2023-12-21 10:12:08,841 INFO L226 Difference]: Without dead ends: 133 [2023-12-21 10:12:08,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-21 10:12:08,842 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 166 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 10:12:08,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 192 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 10:12:08,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2023-12-21 10:12:08,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 127. [2023-12-21 10:12:08,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 90 states have (on average 1.3444444444444446) internal successors, (121), 98 states have internal predecessors, (121), 18 states have call successors, (18), 15 states have call predecessors, (18), 18 states have return successors, (23), 19 states have call predecessors, (23), 18 states have call successors, (23) [2023-12-21 10:12:08,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 162 transitions. [2023-12-21 10:12:08,855 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 162 transitions. Word has length 31 [2023-12-21 10:12:08,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:12:08,855 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 162 transitions. [2023-12-21 10:12:08,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-21 10:12:08,855 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 162 transitions. [2023-12-21 10:12:08,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-21 10:12:08,856 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:12:08,856 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] [2023-12-21 10:12:08,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-21 10:12:08,856 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:12:08,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:12:08,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1188981272, now seen corresponding path program 1 times [2023-12-21 10:12:08,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:12:08,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862950510] [2023-12-21 10:12:08,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:12:08,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:12:08,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:08,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-21 10:12:08,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:08,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 10:12:08,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:08,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 10:12:08,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:08,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 10:12:08,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:12:08,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862950510] [2023-12-21 10:12:08,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862950510] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:12:08,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 10:12:08,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 10:12:08,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741733810] [2023-12-21 10:12:08,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:12:08,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 10:12:08,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:12:08,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 10:12:08,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 10:12:08,928 INFO L87 Difference]: Start difference. First operand 127 states and 162 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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) [2023-12-21 10:12:09,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:12:09,108 INFO L93 Difference]: Finished difference Result 373 states and 500 transitions. [2023-12-21 10:12:09,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 10:12:09,108 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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 36 [2023-12-21 10:12:09,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:12:09,111 INFO L225 Difference]: With dead ends: 373 [2023-12-21 10:12:09,111 INFO L226 Difference]: Without dead ends: 248 [2023-12-21 10:12:09,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-21 10:12:09,113 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 137 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 10:12:09,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 174 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 10:12:09,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2023-12-21 10:12:09,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 242. [2023-12-21 10:12:09,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 171 states have (on average 1.2982456140350878) internal successors, (222), 184 states have internal predecessors, (222), 36 states have call successors, (36), 30 states have call predecessors, (36), 34 states have return successors, (54), 36 states have call predecessors, (54), 36 states have call successors, (54) [2023-12-21 10:12:09,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 312 transitions. [2023-12-21 10:12:09,133 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 312 transitions. Word has length 36 [2023-12-21 10:12:09,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:12:09,133 INFO L495 AbstractCegarLoop]: Abstraction has 242 states and 312 transitions. [2023-12-21 10:12:09,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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) [2023-12-21 10:12:09,133 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 312 transitions. [2023-12-21 10:12:09,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-12-21 10:12:09,134 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:12:09,134 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] [2023-12-21 10:12:09,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-21 10:12:09,135 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:12:09,135 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:12:09,135 INFO L85 PathProgramCache]: Analyzing trace with hash 410033292, now seen corresponding path program 1 times [2023-12-21 10:12:09,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:12:09,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045842453] [2023-12-21 10:12:09,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:12:09,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:12:09,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:09,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 10:12:09,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:09,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 10:12:09,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:09,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 10:12:09,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:09,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 10:12:09,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:09,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 10:12:09,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:12:09,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045842453] [2023-12-21 10:12:09,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045842453] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:12:09,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 10:12:09,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 10:12:09,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555638927] [2023-12-21 10:12:09,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:12:09,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 10:12:09,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:12:09,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 10:12:09,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 10:12:09,211 INFO L87 Difference]: Start difference. First operand 242 states and 312 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 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) [2023-12-21 10:12:09,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:12:09,412 INFO L93 Difference]: Finished difference Result 516 states and 666 transitions. [2023-12-21 10:12:09,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 10:12:09,413 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 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 40 [2023-12-21 10:12:09,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:12:09,414 INFO L225 Difference]: With dead ends: 516 [2023-12-21 10:12:09,415 INFO L226 Difference]: Without dead ends: 276 [2023-12-21 10:12:09,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-21 10:12:09,416 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 120 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 10:12:09,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 183 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 10:12:09,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2023-12-21 10:12:09,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 269. [2023-12-21 10:12:09,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 190 states have (on average 1.2789473684210526) internal successors, (243), 207 states have internal predecessors, (243), 40 states have call successors, (40), 30 states have call predecessors, (40), 38 states have return successors, (62), 40 states have call predecessors, (62), 40 states have call successors, (62) [2023-12-21 10:12:09,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 345 transitions. [2023-12-21 10:12:09,434 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 345 transitions. Word has length 40 [2023-12-21 10:12:09,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:12:09,435 INFO L495 AbstractCegarLoop]: Abstraction has 269 states and 345 transitions. [2023-12-21 10:12:09,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 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) [2023-12-21 10:12:09,435 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 345 transitions. [2023-12-21 10:12:09,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-12-21 10:12:09,436 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:12:09,436 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] [2023-12-21 10:12:09,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-21 10:12:09,436 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:12:09,437 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:12:09,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1584111414, now seen corresponding path program 1 times [2023-12-21 10:12:09,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:12:09,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749657696] [2023-12-21 10:12:09,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:12:09,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:12:09,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:09,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 10:12:09,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:09,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 10:12:09,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:09,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 10:12:09,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:09,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 10:12:09,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:09,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 10:12:09,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:12:09,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749657696] [2023-12-21 10:12:09,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749657696] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:12:09,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 10:12:09,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 10:12:09,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207527500] [2023-12-21 10:12:09,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:12:09,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 10:12:09,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:12:09,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 10:12:09,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 10:12:09,494 INFO L87 Difference]: Start difference. First operand 269 states and 345 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 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) [2023-12-21 10:12:09,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:12:09,687 INFO L93 Difference]: Finished difference Result 550 states and 713 transitions. [2023-12-21 10:12:09,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 10:12:09,688 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 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 40 [2023-12-21 10:12:09,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:12:09,689 INFO L225 Difference]: With dead ends: 550 [2023-12-21 10:12:09,689 INFO L226 Difference]: Without dead ends: 283 [2023-12-21 10:12:09,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-12-21 10:12:09,691 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 118 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 10:12:09,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 174 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 10:12:09,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2023-12-21 10:12:09,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 268. [2023-12-21 10:12:09,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 191 states have (on average 1.2722513089005236) internal successors, (243), 207 states have internal predecessors, (243), 39 states have call successors, (39), 29 states have call predecessors, (39), 37 states have return successors, (61), 39 states have call predecessors, (61), 39 states have call successors, (61) [2023-12-21 10:12:09,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 343 transitions. [2023-12-21 10:12:09,709 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 343 transitions. Word has length 40 [2023-12-21 10:12:09,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:12:09,710 INFO L495 AbstractCegarLoop]: Abstraction has 268 states and 343 transitions. [2023-12-21 10:12:09,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 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) [2023-12-21 10:12:09,710 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 343 transitions. [2023-12-21 10:12:09,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-21 10:12:09,711 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:12:09,711 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 10:12:09,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-21 10:12:09,712 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:12:09,712 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:12:09,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1459371162, now seen corresponding path program 1 times [2023-12-21 10:12:09,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:12:09,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365655723] [2023-12-21 10:12:09,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:12:09,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:12:09,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:09,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 10:12:09,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:09,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 10:12:09,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:09,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 10:12:09,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:09,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 10:12:09,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:09,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-21 10:12:09,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:09,854 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-21 10:12:09,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:12:09,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365655723] [2023-12-21 10:12:09,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365655723] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 10:12:09,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [173823] [2023-12-21 10:12:09,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:12:09,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 10:12:09,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 10:12:09,856 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) [2023-12-21 10:12:09,873 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-21 10:12:09,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:09,929 INFO L262 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-21 10:12:09,933 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 10:12:10,031 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 10:12:10,031 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 10:12:10,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [173823] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:12:10,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 10:12:10,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2023-12-21 10:12:10,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200554248] [2023-12-21 10:12:10,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:12:10,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 10:12:10,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:12:10,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 10:12:10,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2023-12-21 10:12:10,033 INFO L87 Difference]: Start difference. First operand 268 states and 343 transitions. Second operand has 8 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 10:12:10,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:12:10,138 INFO L93 Difference]: Finished difference Result 787 states and 1024 transitions. [2023-12-21 10:12:10,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 10:12:10,138 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) Word has length 47 [2023-12-21 10:12:10,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:12:10,141 INFO L225 Difference]: With dead ends: 787 [2023-12-21 10:12:10,141 INFO L226 Difference]: Without dead ends: 521 [2023-12-21 10:12:10,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2023-12-21 10:12:10,142 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 46 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 10:12:10,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 380 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 10:12:10,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2023-12-21 10:12:10,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 519. [2023-12-21 10:12:10,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 369 states have (on average 1.2574525745257452) internal successors, (464), 398 states have internal predecessors, (464), 77 states have call successors, (77), 58 states have call predecessors, (77), 72 states have return successors, (122), 76 states have call predecessors, (122), 77 states have call successors, (122) [2023-12-21 10:12:10,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 663 transitions. [2023-12-21 10:12:10,167 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 663 transitions. Word has length 47 [2023-12-21 10:12:10,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:12:10,168 INFO L495 AbstractCegarLoop]: Abstraction has 519 states and 663 transitions. [2023-12-21 10:12:10,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 10:12:10,168 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 663 transitions. [2023-12-21 10:12:10,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-21 10:12:10,169 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:12:10,169 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 10:12:10,192 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-21 10:12:10,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 10:12:10,375 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:12:10,375 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:12:10,375 INFO L85 PathProgramCache]: Analyzing trace with hash 39056581, now seen corresponding path program 1 times [2023-12-21 10:12:10,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:12:10,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568758628] [2023-12-21 10:12:10,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:12:10,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:12:10,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:10,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 10:12:10,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:10,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 10:12:10,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:10,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 10:12:10,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:10,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 10:12:10,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:10,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-21 10:12:10,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:10,438 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 10:12:10,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:12:10,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568758628] [2023-12-21 10:12:10,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568758628] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:12:10,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 10:12:10,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 10:12:10,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180458624] [2023-12-21 10:12:10,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:12:10,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 10:12:10,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:12:10,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 10:12:10,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 10:12:10,439 INFO L87 Difference]: Start difference. First operand 519 states and 663 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 4 states have internal predecessors, (35), 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) [2023-12-21 10:12:10,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:12:10,641 INFO L93 Difference]: Finished difference Result 1042 states and 1329 transitions. [2023-12-21 10:12:10,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 10:12:10,641 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 4 states have internal predecessors, (35), 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 47 [2023-12-21 10:12:10,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:12:10,643 INFO L225 Difference]: With dead ends: 1042 [2023-12-21 10:12:10,643 INFO L226 Difference]: Without dead ends: 525 [2023-12-21 10:12:10,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-12-21 10:12:10,645 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 167 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 10:12:10,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 242 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 10:12:10,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2023-12-21 10:12:10,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 519. [2023-12-21 10:12:10,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 369 states have (on average 1.2357723577235773) internal successors, (456), 398 states have internal predecessors, (456), 77 states have call successors, (77), 58 states have call predecessors, (77), 72 states have return successors, (111), 76 states have call predecessors, (111), 77 states have call successors, (111) [2023-12-21 10:12:10,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 644 transitions. [2023-12-21 10:12:10,671 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 644 transitions. Word has length 47 [2023-12-21 10:12:10,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:12:10,672 INFO L495 AbstractCegarLoop]: Abstraction has 519 states and 644 transitions. [2023-12-21 10:12:10,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 4 states have internal predecessors, (35), 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) [2023-12-21 10:12:10,672 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 644 transitions. [2023-12-21 10:12:10,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-21 10:12:10,673 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:12:10,673 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 10:12:10,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-21 10:12:10,673 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:12:10,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:12:10,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1149018914, now seen corresponding path program 1 times [2023-12-21 10:12:10,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:12:10,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462052058] [2023-12-21 10:12:10,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:12:10,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:12:10,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:10,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 10:12:10,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:10,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-21 10:12:10,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:10,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 10:12:10,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:10,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 10:12:10,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:10,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 10:12:10,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:10,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-21 10:12:10,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:10,774 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-21 10:12:10,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:12:10,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462052058] [2023-12-21 10:12:10,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462052058] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:12:10,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 10:12:10,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-21 10:12:10,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453853221] [2023-12-21 10:12:10,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:12:10,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 10:12:10,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:12:10,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 10:12:10,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2023-12-21 10:12:10,776 INFO L87 Difference]: Start difference. First operand 519 states and 644 transitions. Second operand has 12 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 8 states have internal predecessors, (38), 4 states have call successors, (7), 5 states have call predecessors, (7), 3 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2023-12-21 10:12:11,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:12:11,474 INFO L93 Difference]: Finished difference Result 1031 states and 1289 transitions. [2023-12-21 10:12:11,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-21 10:12:11,474 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 8 states have internal predecessors, (38), 4 states have call successors, (7), 5 states have call predecessors, (7), 3 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) Word has length 51 [2023-12-21 10:12:11,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:12:11,476 INFO L225 Difference]: With dead ends: 1031 [2023-12-21 10:12:11,476 INFO L226 Difference]: Without dead ends: 514 [2023-12-21 10:12:11,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=333, Invalid=999, Unknown=0, NotChecked=0, Total=1332 [2023-12-21 10:12:11,478 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 366 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 1002 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 1153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 1002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 10:12:11,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [369 Valid, 219 Invalid, 1153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 1002 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 10:12:11,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2023-12-21 10:12:11,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 505. [2023-12-21 10:12:11,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 355 states have (on average 1.1887323943661972) internal successors, (422), 384 states have internal predecessors, (422), 77 states have call successors, (77), 58 states have call predecessors, (77), 72 states have return successors, (107), 76 states have call predecessors, (107), 77 states have call successors, (107) [2023-12-21 10:12:11,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 606 transitions. [2023-12-21 10:12:11,502 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 606 transitions. Word has length 51 [2023-12-21 10:12:11,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:12:11,502 INFO L495 AbstractCegarLoop]: Abstraction has 505 states and 606 transitions. [2023-12-21 10:12:11,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 8 states have internal predecessors, (38), 4 states have call successors, (7), 5 states have call predecessors, (7), 3 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2023-12-21 10:12:11,502 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 606 transitions. [2023-12-21 10:12:11,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-21 10:12:11,503 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:12:11,504 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 10:12:11,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-21 10:12:11,504 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:12:11,504 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:12:11,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1622705757, now seen corresponding path program 1 times [2023-12-21 10:12:11,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:12:11,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089401721] [2023-12-21 10:12:11,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:12:11,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:12:11,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:11,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 10:12:11,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:11,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-21 10:12:11,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:11,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 10:12:11,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:11,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 10:12:11,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:11,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 10:12:11,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:11,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 10:12:11,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:11,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-21 10:12:11,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:11,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-21 10:12:11,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:11,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 10:12:11,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:11,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 10:12:11,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:11,760 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 17 proven. 8 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-21 10:12:11,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:12:11,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089401721] [2023-12-21 10:12:11,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089401721] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 10:12:11,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1948217564] [2023-12-21 10:12:11,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:12:11,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 10:12:11,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 10:12:11,762 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 10:12:11,780 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-21 10:12:11,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:11,844 INFO L262 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-21 10:12:11,846 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 10:12:12,010 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-21 10:12:12,011 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 10:12:12,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1948217564] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:12:12,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 10:12:12,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [16] total 19 [2023-12-21 10:12:12,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960845402] [2023-12-21 10:12:12,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:12:12,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 10:12:12,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:12:12,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 10:12:12,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2023-12-21 10:12:12,012 INFO L87 Difference]: Start difference. First operand 505 states and 606 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 6 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (10), 4 states have call predecessors, (10), 6 states have call successors, (10) [2023-12-21 10:12:12,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:12:12,342 INFO L93 Difference]: Finished difference Result 1408 states and 1751 transitions. [2023-12-21 10:12:12,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 10:12:12,342 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 6 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (10), 4 states have call predecessors, (10), 6 states have call successors, (10) Word has length 82 [2023-12-21 10:12:12,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:12:12,346 INFO L225 Difference]: With dead ends: 1408 [2023-12-21 10:12:12,346 INFO L226 Difference]: Without dead ends: 905 [2023-12-21 10:12:12,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 98 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=475, Unknown=0, NotChecked=0, Total=552 [2023-12-21 10:12:12,347 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 385 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 10:12:12,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [403 Valid, 275 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 10:12:12,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 905 states. [2023-12-21 10:12:12,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 905 to 903. [2023-12-21 10:12:12,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 903 states, 642 states have (on average 1.2087227414330217) internal successors, (776), 684 states have internal predecessors, (776), 140 states have call successors, (140), 119 states have call predecessors, (140), 120 states have return successors, (196), 129 states have call predecessors, (196), 140 states have call successors, (196) [2023-12-21 10:12:12,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 903 states to 903 states and 1112 transitions. [2023-12-21 10:12:12,394 INFO L78 Accepts]: Start accepts. Automaton has 903 states and 1112 transitions. Word has length 82 [2023-12-21 10:12:12,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:12:12,394 INFO L495 AbstractCegarLoop]: Abstraction has 903 states and 1112 transitions. [2023-12-21 10:12:12,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 6 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (10), 4 states have call predecessors, (10), 6 states have call successors, (10) [2023-12-21 10:12:12,394 INFO L276 IsEmpty]: Start isEmpty. Operand 903 states and 1112 transitions. [2023-12-21 10:12:12,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-21 10:12:12,395 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:12:12,395 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 10:12:12,402 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-21 10:12:12,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-12-21 10:12:12,601 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:12:12,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:12:12,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1445129207, now seen corresponding path program 1 times [2023-12-21 10:12:12,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:12:12,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183177583] [2023-12-21 10:12:12,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:12:12,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:12:12,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:12,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-21 10:12:12,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:12,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 10:12:12,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:12,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 10:12:12,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:12,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 10:12:12,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:12,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 10:12:12,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:12,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-21 10:12:12,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:12,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-21 10:12:12,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:12,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 10:12:12,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:12,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-21 10:12:12,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:12,707 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-21 10:12:12,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:12:12,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183177583] [2023-12-21 10:12:12,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183177583] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 10:12:12,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [548115008] [2023-12-21 10:12:12,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:12:12,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 10:12:12,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 10:12:12,709 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 10:12:12,711 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-21 10:12:12,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:12:12,777 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-21 10:12:12,779 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 10:12:12,886 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 12 proven. 13 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-21 10:12:12,886 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 10:12:13,054 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-12-21 10:12:13,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [548115008] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 10:12:13,054 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 10:12:13,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 12 [2023-12-21 10:12:13,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308649086] [2023-12-21 10:12:13,055 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 10:12:13,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 10:12:13,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:12:13,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 10:12:13,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-12-21 10:12:13,056 INFO L87 Difference]: Start difference. First operand 903 states and 1112 transitions. Second operand has 12 states, 12 states have (on average 7.583333333333333) internal successors, (91), 9 states have internal predecessors, (91), 5 states have call successors, (20), 8 states have call predecessors, (20), 7 states have return successors, (19), 5 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-21 10:12:13,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:12:13,512 INFO L93 Difference]: Finished difference Result 1866 states and 2330 transitions. [2023-12-21 10:12:13,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 10:12:13,513 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.583333333333333) internal successors, (91), 9 states have internal predecessors, (91), 5 states have call successors, (20), 8 states have call predecessors, (20), 7 states have return successors, (19), 5 states have call predecessors, (19), 4 states have call successors, (19) Word has length 78 [2023-12-21 10:12:13,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:12:13,513 INFO L225 Difference]: With dead ends: 1866 [2023-12-21 10:12:13,513 INFO L226 Difference]: Without dead ends: 0 [2023-12-21 10:12:13,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 170 SyntacticMatches, 6 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=173, Invalid=333, Unknown=0, NotChecked=0, Total=506 [2023-12-21 10:12:13,517 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 273 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 10:12:13,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 144 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 10:12:13,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-21 10:12:13,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-21 10:12:13,517 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) [2023-12-21 10:12:13,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-21 10:12:13,518 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 78 [2023-12-21 10:12:13,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:12:13,518 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-21 10:12:13,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.583333333333333) internal successors, (91), 9 states have internal predecessors, (91), 5 states have call successors, (20), 8 states have call predecessors, (20), 7 states have return successors, (19), 5 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-21 10:12:13,518 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-21 10:12:13,518 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-21 10:12:13,520 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-21 10:12:13,541 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-21 10:12:13,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 10:12:13,727 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-21 10:12:17,284 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 318 324) no Hoare annotation was computed. [2023-12-21 10:12:17,285 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 318 324) the Hoare annotation is: true [2023-12-21 10:12:17,285 INFO L899 garLoopResultBuilder]: For program point L123-1(lines 119 130) no Hoare annotation was computed. [2023-12-21 10:12:17,285 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 119 130) the Hoare annotation is: (let ((.cse2 (not (= ~pumpRunning~0 0))) (.cse5 (= ~methaneLevelCritical~0 1)) (.cse7 (not (= |old(~methaneLevelCritical~0)| 1))) (.cse0 (< 2 ~waterLevel~0)) (.cse1 (not (= |old(~methaneLevelCritical~0)| 0))) (.cse3 (= ~methaneLevelCritical~0 0)) (.cse4 (not (= 1 ~systemActive~0))) (.cse6 (not (= ~pumpRunning~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse4 .cse5 .cse6 .cse7) (or .cse0 .cse2 .cse4 .cse5 .cse7) (or .cse0 .cse1 .cse3 .cse4 .cse6))) [2023-12-21 10:12:17,285 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 119 130) no Hoare annotation was computed. [2023-12-21 10:12:17,285 INFO L895 garLoopResultBuilder]: At program point L366(line 366) the Hoare annotation is: (let ((.cse8 (= ~pumpRunning~0 1))) (let ((.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (= ~waterLevel~0 1)) (.cse1 (< |old(~waterLevel~0)| 2)) (.cse3 (not (= ~methaneLevelCritical~0 1))) (.cse5 (< 2 |old(~waterLevel~0)|)) (.cse0 (not (= 1 ~systemActive~0))) (.cse7 (not (= ~methaneLevelCritical~0 0))) (.cse2 (not (= |old(~pumpRunning~0)| 1))) (.cse9 (and (<= ~waterLevel~0 |old(~waterLevel~0)|) .cse8))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse6 .cse0 .cse3 .cse5) (or .cse6 .cse0 .cse7 .cse5) (or (and .cse4 .cse8) .cse0 .cse1 .cse7 .cse2 .cse5) (or .cse0 .cse2 .cse9 .cse3 .cse5) (or (< 1 |old(~waterLevel~0)|) .cse0 .cse7 .cse2 .cse9)))) [2023-12-21 10:12:17,285 INFO L899 garLoopResultBuilder]: For program point L73(lines 73 79) no Hoare annotation was computed. [2023-12-21 10:12:17,285 INFO L895 garLoopResultBuilder]: At program point L358(line 358) the Hoare annotation is: (let ((.cse8 (= ~pumpRunning~0 1))) (let ((.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (= ~waterLevel~0 1)) (.cse1 (< |old(~waterLevel~0)| 2)) (.cse3 (not (= ~methaneLevelCritical~0 1))) (.cse5 (< 2 |old(~waterLevel~0)|)) (.cse0 (not (= 1 ~systemActive~0))) (.cse7 (not (= ~methaneLevelCritical~0 0))) (.cse2 (not (= |old(~pumpRunning~0)| 1))) (.cse9 (and (<= ~waterLevel~0 |old(~waterLevel~0)|) .cse8))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse6 .cse0 .cse3 .cse5) (or .cse6 .cse0 .cse7 .cse5) (or (and .cse4 .cse8) .cse0 .cse1 .cse7 .cse2 .cse5) (or .cse0 .cse2 .cse9 .cse3 .cse5) (or (< 1 |old(~waterLevel~0)|) .cse0 .cse7 .cse2 .cse9)))) [2023-12-21 10:12:17,286 INFO L899 garLoopResultBuilder]: For program point L358-1(line 358) no Hoare annotation was computed. [2023-12-21 10:12:17,286 INFO L899 garLoopResultBuilder]: For program point L69(lines 69 82) no Hoare annotation was computed. [2023-12-21 10:12:17,286 INFO L899 garLoopResultBuilder]: For program point L69-1(lines 54 86) no Hoare annotation was computed. [2023-12-21 10:12:17,286 INFO L895 garLoopResultBuilder]: At program point L61(line 61) the Hoare annotation is: (let ((.cse18 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse13 (= ~pumpRunning~0 0)) (.cse19 (= ~methaneLevelCritical~0 0)) (.cse21 (<= ~waterLevel~0 1)) (.cse20 (= 1 ~systemActive~0)) (.cse16 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse22 (= |old(~pumpRunning~0)| 0)) (.cse14 (= 2 ~waterLevel~0)) (.cse17 (= ~pumpRunning~0 1))) (let ((.cse9 (and .cse14 .cse17)) (.cse3 (not (= ~methaneLevelCritical~0 1))) (.cse1 (< |old(~waterLevel~0)| 2)) (.cse4 (= ~waterLevel~0 1)) (.cse15 (< 1 |old(~waterLevel~0)|)) (.cse6 (not .cse22)) (.cse8 (and .cse13 .cse19 .cse21 .cse20 .cse22 .cse16)) (.cse10 (and .cse19 .cse21 .cse20 .cse16 .cse17)) (.cse0 (not .cse20)) (.cse7 (not .cse19)) (.cse2 (not (= |old(~pumpRunning~0)| 1))) (.cse11 (and .cse18 .cse17)) (.cse5 (< 2 |old(~waterLevel~0)|)) (.cse12 (and .cse13 .cse18))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse6 .cse0 .cse7 .cse8 .cse5 .cse9 .cse10) (or .cse0 .cse2 .cse11 .cse3 .cse5 .cse12) (or .cse6 .cse0 .cse1 (and .cse13 .cse14) .cse3 .cse5 .cse9) (or .cse15 .cse6 (and .cse13 .cse16) .cse0 .cse3 (and .cse16 .cse17)) (or .cse0 .cse1 .cse7 .cse2 .cse4 .cse5) (or .cse15 .cse6 .cse0 .cse7 .cse8 .cse10) (or .cse0 .cse7 .cse2 .cse11 .cse5 .cse12)))) [2023-12-21 10:12:17,286 INFO L899 garLoopResultBuilder]: For program point L61-1(line 61) no Hoare annotation was computed. [2023-12-21 10:12:17,286 INFO L895 garLoopResultBuilder]: At program point L371(line 371) the Hoare annotation is: (let ((.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0))) (.cse2 (not (= ~methaneLevelCritical~0 1))) (.cse0 (not (= 1 ~systemActive~0))) (.cse6 (not (= ~methaneLevelCritical~0 0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse3 (< 2 |old(~waterLevel~0)|))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse0 .cse6 .cse3) (or .cse4 .cse5 .cse0 .cse2 .cse3) (or .cse0 .cse6 .cse1 .cse3))) [2023-12-21 10:12:17,286 INFO L899 garLoopResultBuilder]: For program point L371-1(lines 352 376) no Hoare annotation was computed. [2023-12-21 10:12:17,286 INFO L899 garLoopResultBuilder]: For program point L305-1(lines 305 311) no Hoare annotation was computed. [2023-12-21 10:12:17,286 INFO L899 garLoopResultBuilder]: For program point L590(line 590) no Hoare annotation was computed. [2023-12-21 10:12:17,286 INFO L899 garLoopResultBuilder]: For program point L99(lines 99 103) no Hoare annotation was computed. [2023-12-21 10:12:17,286 INFO L899 garLoopResultBuilder]: For program point L99-2(lines 95 106) no Hoare annotation was computed. [2023-12-21 10:12:17,286 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 294 317) the Hoare annotation is: (let ((.cse8 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse2 (not (= |old(~pumpRunning~0)| 1))) (.cse4 (and .cse8 (= ~pumpRunning~0 1))) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse7 (and (= ~pumpRunning~0 0) .cse8)) (.cse0 (not (= 1 ~systemActive~0))) (.cse5 (not (= ~methaneLevelCritical~0 1))) (.cse3 (< 2 |old(~waterLevel~0)|))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse2 .cse5 .cse3 .cse4) (or .cse6 .cse7 .cse0 .cse1 .cse3) (or .cse6 .cse7 .cse0 .cse5 .cse3)))) [2023-12-21 10:12:17,287 INFO L899 garLoopResultBuilder]: For program point L298-1(lines 297 316) no Hoare annotation was computed. [2023-12-21 10:12:17,287 INFO L899 garLoopResultBuilder]: For program point L360(lines 360 368) no Hoare annotation was computed. [2023-12-21 10:12:17,287 INFO L899 garLoopResultBuilder]: For program point L356(lines 356 373) no Hoare annotation was computed. [2023-12-21 10:12:17,287 INFO L899 garLoopResultBuilder]: For program point L63(lines 63 83) no Hoare annotation was computed. [2023-12-21 10:12:17,287 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 294 317) no Hoare annotation was computed. [2023-12-21 10:12:17,287 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 590) no Hoare annotation was computed. [2023-12-21 10:12:17,287 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 189 218) no Hoare annotation was computed. [2023-12-21 10:12:17,287 INFO L899 garLoopResultBuilder]: For program point L214(lines 189 218) no Hoare annotation was computed. [2023-12-21 10:12:17,287 INFO L899 garLoopResultBuilder]: For program point L210(line 210) no Hoare annotation was computed. [2023-12-21 10:12:17,287 INFO L899 garLoopResultBuilder]: For program point L203(lines 203 207) no Hoare annotation was computed. [2023-12-21 10:12:17,287 INFO L902 garLoopResultBuilder]: At program point L203-1(lines 203 207) the Hoare annotation is: true [2023-12-21 10:12:17,287 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 189 218) the Hoare annotation is: true [2023-12-21 10:12:17,287 INFO L902 garLoopResultBuilder]: At program point L199-2(lines 199 213) the Hoare annotation is: true [2023-12-21 10:12:17,287 INFO L902 garLoopResultBuilder]: At program point L195(line 195) the Hoare annotation is: true [2023-12-21 10:12:17,287 INFO L899 garLoopResultBuilder]: For program point L195-1(line 195) no Hoare annotation was computed. [2023-12-21 10:12:17,287 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 131 139) the Hoare annotation is: true [2023-12-21 10:12:17,287 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 131 139) no Hoare annotation was computed. [2023-12-21 10:12:17,288 INFO L895 garLoopResultBuilder]: At program point L539(lines 496 541) the Hoare annotation is: (let ((.cse0 (= 2 ~waterLevel~0)) (.cse2 (= ~methaneLevelCritical~0 1)) (.cse4 (= ~pumpRunning~0 1)) (.cse7 (= ~pumpRunning~0 0)) (.cse5 (= ~methaneLevelCritical~0 0)) (.cse6 (<= ~waterLevel~0 1)) (.cse1 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse1 .cse3 .cse4) (and .cse5 .cse6 .cse1 .cse3 .cse4) (and .cse7 .cse0 .cse1 .cse2 .cse3) (and .cse7 .cse6 .cse1 .cse2 .cse3) (and .cse6 .cse1 .cse2 .cse3 .cse4) (and .cse7 .cse5 .cse6 .cse1 .cse3))) [2023-12-21 10:12:17,288 INFO L899 garLoopResultBuilder]: For program point L506(lines 506 512) no Hoare annotation was computed. [2023-12-21 10:12:17,288 INFO L899 garLoopResultBuilder]: For program point L506-1(lines 506 512) no Hoare annotation was computed. [2023-12-21 10:12:17,288 INFO L899 garLoopResultBuilder]: For program point L275(lines 275 282) no Hoare annotation was computed. [2023-12-21 10:12:17,288 INFO L899 garLoopResultBuilder]: For program point L275-2(lines 275 282) no Hoare annotation was computed. [2023-12-21 10:12:17,288 INFO L899 garLoopResultBuilder]: For program point L532(lines 532 536) no Hoare annotation was computed. [2023-12-21 10:12:17,288 INFO L895 garLoopResultBuilder]: At program point L532-2(lines 526 537) the Hoare annotation is: (let ((.cse0 (= 2 ~waterLevel~0)) (.cse2 (= ~methaneLevelCritical~0 1)) (.cse4 (= ~pumpRunning~0 1)) (.cse7 (= ~pumpRunning~0 0)) (.cse5 (= ~methaneLevelCritical~0 0)) (.cse6 (<= ~waterLevel~0 1)) (.cse1 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse1 .cse3 .cse4) (and .cse5 .cse6 .cse1 .cse3 .cse4) (and .cse7 .cse0 .cse1 .cse2 .cse3) (and .cse7 .cse0 .cse5 .cse1 .cse3) (and .cse7 .cse6 .cse1 .cse2 .cse3) (and .cse6 .cse1 .cse2 .cse3 .cse4) (and .cse7 .cse5 .cse6 .cse1 .cse3))) [2023-12-21 10:12:17,288 INFO L899 garLoopResultBuilder]: For program point L516(lines 516 522) no Hoare annotation was computed. [2023-12-21 10:12:17,288 INFO L899 garLoopResultBuilder]: For program point L516-1(lines 516 522) no Hoare annotation was computed. [2023-12-21 10:12:17,288 INFO L899 garLoopResultBuilder]: For program point L545(lines 486 549) no Hoare annotation was computed. [2023-12-21 10:12:17,288 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-21 10:12:17,288 INFO L895 garLoopResultBuilder]: At program point L508(line 508) the Hoare annotation is: (let ((.cse0 (= 2 ~waterLevel~0)) (.cse2 (= ~methaneLevelCritical~0 1)) (.cse4 (= ~pumpRunning~0 1)) (.cse7 (= ~pumpRunning~0 0)) (.cse5 (= ~methaneLevelCritical~0 0)) (.cse6 (<= ~waterLevel~0 1)) (.cse1 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse1 .cse3 .cse4) (and .cse5 .cse6 .cse1 .cse3 .cse4) (and .cse7 .cse0 .cse1 .cse2 .cse3) (and .cse7 .cse6 .cse1 .cse2 .cse3) (and .cse6 .cse1 .cse2 .cse3 .cse4) (and .cse7 .cse5 .cse6 .cse1 .cse3))) [2023-12-21 10:12:17,288 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-21 10:12:17,288 INFO L895 garLoopResultBuilder]: At program point L542(lines 495 543) the Hoare annotation is: false [2023-12-21 10:12:17,288 INFO L899 garLoopResultBuilder]: For program point L497(lines 496 541) no Hoare annotation was computed. [2023-12-21 10:12:17,288 INFO L899 garLoopResultBuilder]: For program point L526(lines 526 537) no Hoare annotation was computed. [2023-12-21 10:12:17,289 INFO L895 garLoopResultBuilder]: At program point L518(line 518) the Hoare annotation is: (let ((.cse0 (= 2 ~waterLevel~0)) (.cse2 (= ~methaneLevelCritical~0 1)) (.cse4 (= ~pumpRunning~0 1)) (.cse7 (= ~pumpRunning~0 0)) (.cse5 (= ~methaneLevelCritical~0 0)) (.cse6 (<= ~waterLevel~0 1)) (.cse1 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse1 .cse3 .cse4) (and .cse5 .cse6 .cse1 .cse3 .cse4) (and .cse7 .cse0 .cse1 .cse2 .cse3) (and .cse7 .cse0 .cse5 .cse1 .cse3) (and .cse7 .cse6 .cse1 .cse2 .cse3) (and .cse6 .cse1 .cse2 .cse3 .cse4) (and .cse7 .cse5 .cse6 .cse1 .cse3))) [2023-12-21 10:12:17,289 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 107 118) no Hoare annotation was computed. [2023-12-21 10:12:17,289 INFO L899 garLoopResultBuilder]: For program point L111-1(lines 107 118) no Hoare annotation was computed. [2023-12-21 10:12:17,289 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 107 118) the Hoare annotation is: (let ((.cse2 (not (= ~methaneLevelCritical~0 1))) (.cse5 (not (= ~pumpRunning~0 1))) (.cse4 (< 2 |old(~waterLevel~0)|)) (.cse0 (not (= ~pumpRunning~0 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse6 (not (= ~methaneLevelCritical~0 0))) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse1 .cse5 .cse2 .cse3 .cse4) (or .cse1 .cse6 .cse5 .cse3 .cse4) (or (< 1 |old(~waterLevel~0)|) .cse0 .cse1 .cse6 .cse3))) [2023-12-21 10:12:17,289 INFO L899 garLoopResultBuilder]: For program point L475(lines 475 479) no Hoare annotation was computed. [2023-12-21 10:12:17,289 INFO L899 garLoopResultBuilder]: For program point L475-2(lines 475 479) no Hoare annotation was computed. [2023-12-21 10:12:17,289 INFO L895 garLoopResultBuilder]: At program point L345(line 345) the Hoare annotation is: (let ((.cse5 (< 2 ~waterLevel~0)) (.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (= ~methaneLevelCritical~0 1))) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (< 1 ~waterLevel~0)) (.cse7 (not (= ~methaneLevelCritical~0 0))) (.cse2 (not (= |old(~pumpRunning~0)| 1))) (.cse4 (= ~pumpRunning~0 1))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse6 .cse0 .cse7) (or .cse5 .cse6 .cse0 .cse3) (or .cse0 .cse1 .cse7 .cse2 .cse4))) [2023-12-21 10:12:17,289 INFO L899 garLoopResultBuilder]: For program point L345-1(lines 326 350) no Hoare annotation was computed. [2023-12-21 10:12:17,289 INFO L899 garLoopResultBuilder]: For program point L176(lines 176 182) no Hoare annotation was computed. [2023-12-21 10:12:17,289 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 326 350) the Hoare annotation is: (let ((.cse3 (not (= ~methaneLevelCritical~0 1))) (.cse5 (< 2 ~waterLevel~0)) (.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse7 (= ~pumpRunning~0 0)) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (< 1 ~waterLevel~0)) (.cse8 (not (= ~methaneLevelCritical~0 0))) (.cse2 (not (= |old(~pumpRunning~0)| 1))) (.cse4 (= ~pumpRunning~0 1))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse6 .cse7 .cse0 .cse3) (or .cse5 .cse6 .cse7 .cse0 .cse8) (or .cse0 .cse1 .cse8 .cse2 .cse4))) [2023-12-21 10:12:17,289 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDry_returnLabel#1(lines 172 185) no Hoare annotation was computed. [2023-12-21 10:12:17,289 INFO L895 garLoopResultBuilder]: At program point L340(line 340) the Hoare annotation is: (let ((.cse5 (< 1 ~waterLevel~0)) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse6 (not (= |old(~pumpRunning~0)| 1))) (.cse0 (< 2 ~waterLevel~0)) (.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse7 (not (= ~methaneLevelCritical~0 1))) (.cse4 (and (= ~pumpRunning~0 0) (<= ~waterLevel~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse2 .cse5 .cse6 .cse7) (or .cse2 .cse5 .cse3 .cse6) (or .cse0 .cse1 .cse2 .cse7 .cse4))) [2023-12-21 10:12:17,290 INFO L899 garLoopResultBuilder]: For program point L334(lines 334 342) no Hoare annotation was computed. [2023-12-21 10:12:17,290 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 326 350) no Hoare annotation was computed. [2023-12-21 10:12:17,290 INFO L899 garLoopResultBuilder]: For program point L330(lines 330 347) no Hoare annotation was computed. [2023-12-21 10:12:17,290 INFO L899 garLoopResultBuilder]: For program point L392(lines 392 398) no Hoare annotation was computed. [2023-12-21 10:12:17,290 INFO L895 garLoopResultBuilder]: At program point L390(line 390) the Hoare annotation is: (let ((.cse9 (= ~pumpRunning~0 0)) (.cse10 (= |old(~pumpRunning~0)| 0))) (let ((.cse0 (< 2 ~waterLevel~0)) (.cse1 (not .cse10)) (.cse3 (and .cse9 (= |processEnvironment__wrappee__methaneQuery_isHighWaterSensorDry_#res#1| 0) (<= 1 |processEnvironment__wrappee__methaneQuery_~tmp~2#1|))) (.cse5 (and .cse9 (<= ~waterLevel~0 1) .cse10)) (.cse4 (not (= ~methaneLevelCritical~0 1))) (.cse2 (not (= 1 ~systemActive~0))) (.cse7 (< 1 ~waterLevel~0)) (.cse6 (not (= ~methaneLevelCritical~0 0))) (.cse8 (not (= |old(~pumpRunning~0)| 1)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse0 .cse1 .cse2 .cse3 .cse6 .cse5) (or .cse2 .cse7 .cse8 .cse4) (or .cse2 .cse7 .cse6 .cse8)))) [2023-12-21 10:12:17,290 INFO L899 garLoopResultBuilder]: For program point L392-2(lines 385 401) no Hoare annotation was computed. [2023-12-21 10:12:17,290 INFO L899 garLoopResultBuilder]: For program point L390-1(line 390) no Hoare annotation was computed. [2023-12-21 10:12:17,290 INFO L902 garLoopResultBuilder]: At program point L415(line 415) the Hoare annotation is: true [2023-12-21 10:12:17,290 INFO L899 garLoopResultBuilder]: For program point L415-1(line 415) no Hoare annotation was computed. [2023-12-21 10:12:17,290 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 410 420) no Hoare annotation was computed. [2023-12-21 10:12:17,290 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 410 420) the Hoare annotation is: true [2023-12-21 10:12:17,292 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 10:12:17,309 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-21 10:12:17,321 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 10:12:17 BoogieIcfgContainer [2023-12-21 10:12:17,321 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-21 10:12:17,322 INFO L158 Benchmark]: Toolchain (without parser) took 10328.17ms. Allocated memory was 216.0MB in the beginning and 447.7MB in the end (delta: 231.7MB). Free memory was 150.8MB in the beginning and 260.1MB in the end (delta: -109.3MB). Peak memory consumption was 168.0MB. Max. memory is 8.0GB. [2023-12-21 10:12:17,322 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 216.0MB. Free memory was 165.3MB in the beginning and 165.1MB in the end (delta: 132.9kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-21 10:12:17,322 INFO L158 Benchmark]: CACSL2BoogieTranslator took 401.09ms. Allocated memory was 216.0MB in the beginning and 302.0MB in the end (delta: 86.0MB). Free memory was 150.6MB in the beginning and 265.0MB in the end (delta: -114.4MB). Peak memory consumption was 24.8MB. Max. memory is 8.0GB. [2023-12-21 10:12:17,322 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.36ms. Allocated memory is still 302.0MB. Free memory was 265.0MB in the beginning and 262.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-21 10:12:17,322 INFO L158 Benchmark]: Boogie Preprocessor took 37.83ms. Allocated memory is still 302.0MB. Free memory was 262.9MB in the beginning and 260.2MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-21 10:12:17,322 INFO L158 Benchmark]: RCFGBuilder took 494.82ms. Allocated memory is still 302.0MB. Free memory was 260.2MB in the beginning and 238.7MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2023-12-21 10:12:17,323 INFO L158 Benchmark]: TraceAbstraction took 9339.62ms. Allocated memory was 302.0MB in the beginning and 447.7MB in the end (delta: 145.8MB). Free memory was 238.2MB in the beginning and 260.1MB in the end (delta: -21.9MB). Peak memory consumption was 168.5MB. Max. memory is 8.0GB. [2023-12-21 10:12:17,324 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 216.0MB. Free memory was 165.3MB in the beginning and 165.1MB in the end (delta: 132.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 401.09ms. Allocated memory was 216.0MB in the beginning and 302.0MB in the end (delta: 86.0MB). Free memory was 150.6MB in the beginning and 265.0MB in the end (delta: -114.4MB). Peak memory consumption was 24.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 50.36ms. Allocated memory is still 302.0MB. Free memory was 265.0MB in the beginning and 262.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 37.83ms. Allocated memory is still 302.0MB. Free memory was 262.9MB in the beginning and 260.2MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 494.82ms. Allocated memory is still 302.0MB. Free memory was 260.2MB in the beginning and 238.7MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * TraceAbstraction took 9339.62ms. Allocated memory was 302.0MB in the beginning and 447.7MB in the end (delta: 145.8MB). Free memory was 238.2MB in the beginning and 260.1MB in the end (delta: -21.9MB). Peak memory consumption was 168.5MB. 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,"Specification3_spec.i","") [49] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [87] - GenericResultAtLocation [Line: 186]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [186] - GenericResultAtLocation [Line: 288]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [288] - GenericResultAtLocation [Line: 485]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [485] - GenericResultAtLocation [Line: 550]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [550] - GenericResultAtLocation [Line: 585]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [585] - GenericResultAtLocation [Line: 594]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [594] * 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: 590]: 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 9 procedures, 76 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.3s, OverallIterations: 12, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1908 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1862 mSDsluCounter, 2277 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1535 mSDsCounter, 645 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2998 IncrementalHoareTripleChecker+Invalid, 3643 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 645 mSolverCounterUnsat, 742 mSDtfsCounter, 2998 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 534 GetRequests, 394 SyntacticMatches, 7 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 457 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=903occurred in iteration=11, InterpolantAutomatonStates: 114, 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, 53 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 24 LocationsWithAnnotation, 1426 PreInvPairs, 1646 NumberOfFragments, 1682 HoareAnnotationTreeSize, 1426 FormulaSimplifications, 3330 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 24 FormulaSimplificationsInter, 7509 FormulaSimplificationTreeSizeReductionInter, 3.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 715 NumberOfCodeBlocks, 715 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 777 ConstructedInterpolants, 0 QuantifiedInterpolants, 1670 SizeOfPredicates, 5 NumberOfNonLiveVariables, 820 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 16 InterpolantComputations, 11 PerfectInterpolantSequences, 147/176 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: 496]: Loop Invariant Derived loop invariant: (((((((((((2 == waterLevel) && (1 == systemActive)) && (methaneLevelCritical == 1)) && (splverifierCounter == 0)) && (pumpRunning == 1)) || (((((2 == waterLevel) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (splverifierCounter == 0)) && (pumpRunning == 1))) || (((((methaneLevelCritical == 0) && (waterLevel <= 1)) && (1 == systemActive)) && (splverifierCounter == 0)) && (pumpRunning == 1))) || (((((pumpRunning == 0) && (2 == waterLevel)) && (1 == systemActive)) && (methaneLevelCritical == 1)) && (splverifierCounter == 0))) || (((((pumpRunning == 0) && (waterLevel <= 1)) && (1 == systemActive)) && (methaneLevelCritical == 1)) && (splverifierCounter == 0))) || (((((waterLevel <= 1) && (1 == systemActive)) && (methaneLevelCritical == 1)) && (splverifierCounter == 0)) && (pumpRunning == 1))) || (((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (waterLevel <= 1)) && (1 == systemActive)) && (splverifierCounter == 0))) - InvariantResult [Line: 495]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 199]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-12-21 10:12:17,340 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...