/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_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 17:42:23,761 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 17:42:23,830 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 17:42:23,833 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 17:42:23,834 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 17:42:23,856 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 17:42:23,856 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 17:42:23,857 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 17:42:23,857 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 17:42:23,860 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 17:42:23,860 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 17:42:23,860 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 17:42:23,861 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 17:42:23,862 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 17:42:23,862 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 17:42:23,862 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 17:42:23,862 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 17:42:23,862 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 17:42:23,863 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 17:42:23,863 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 17:42:23,863 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 17:42:23,863 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 17:42:23,863 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 17:42:23,863 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 17:42:23,864 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 17:42:23,864 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 17:42:23,864 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 17:42:23,864 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 17:42:23,864 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 17:42:23,864 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 17:42:23,865 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 17:42:23,865 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 17:42:23,865 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 17:42:23,865 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 17:42:23,866 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:42:23,866 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 17:42:23,866 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 17:42:23,866 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 17:42:23,866 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 17:42:23,866 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 17:42:23,866 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 17:42:23,867 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 17:42:23,867 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 17:42:23,867 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 17:42:23,867 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 17:42:23,867 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 17:42:23,867 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 17:42:24,054 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 17:42:24,073 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 17:42:24,075 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 17:42:24,075 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 17:42:24,076 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 17:42:24,077 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product34.cil.c [2023-12-16 17:42:25,225 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 17:42:25,410 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 17:42:25,411 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product34.cil.c [2023-12-16 17:42:25,425 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2cdf5346/40551453839e448d8c0c77aac8430c5d/FLAG4e968747a [2023-12-16 17:42:25,449 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2cdf5346/40551453839e448d8c0c77aac8430c5d [2023-12-16 17:42:25,452 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 17:42:25,453 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 17:42:25,453 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 17:42:25,454 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 17:42:25,458 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 17:42:25,458 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:42:25" (1/1) ... [2023-12-16 17:42:25,459 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@370b43f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:42:25, skipping insertion in model container [2023-12-16 17:42:25,459 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:42:25" (1/1) ... [2023-12-16 17:42:25,494 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 17:42:25,656 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_spec5_product34.cil.c[2141,2154] [2023-12-16 17:42:25,753 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:42:25,769 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-16 17:42:25,779 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 17:42:25,790 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_spec5_product34.cil.c[2141,2154] [2023-12-16 17:42:25,850 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:42:25,859 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 17:42:25,866 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] [2023-12-16 17:42:25,867 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [87] [2023-12-16 17:42:25,867 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [96] [2023-12-16 17:42:25,868 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [462] [2023-12-16 17:42:25,868 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [563] [2023-12-16 17:42:25,868 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [633] [2023-12-16 17:42:25,868 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [802] [2023-12-16 17:42:25,868 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [851] [2023-12-16 17:42:25,877 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_spec5_product34.cil.c[2141,2154] [2023-12-16 17:42:25,907 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:42:25,920 INFO L206 MainTranslator]: Completed translation [2023-12-16 17:42:25,922 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:42:25 WrapperNode [2023-12-16 17:42:25,922 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 17:42:25,922 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 17:42:25,923 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 17:42:25,923 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 17:42:25,927 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:42:25" (1/1) ... [2023-12-16 17:42:25,950 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:42:25" (1/1) ... [2023-12-16 17:42:25,973 INFO L138 Inliner]: procedures = 57, calls = 97, calls flagged for inlining = 23, calls inlined = 19, statements flattened = 168 [2023-12-16 17:42:25,973 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 17:42:25,974 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 17:42:25,974 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 17:42:25,974 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 17:42:25,982 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:42:25" (1/1) ... [2023-12-16 17:42:25,982 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:42:25" (1/1) ... [2023-12-16 17:42:25,986 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:42:25" (1/1) ... [2023-12-16 17:42:25,995 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]. [2023-12-16 17:42:25,996 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:42:25" (1/1) ... [2023-12-16 17:42:25,996 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:42:25" (1/1) ... [2023-12-16 17:42:25,999 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:42:25" (1/1) ... [2023-12-16 17:42:26,002 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:42:25" (1/1) ... [2023-12-16 17:42:26,003 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:42:25" (1/1) ... [2023-12-16 17:42:26,004 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:42:25" (1/1) ... [2023-12-16 17:42:26,021 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 17:42:26,022 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 17:42:26,022 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 17:42:26,022 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 17:42:26,023 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:42:25" (1/1) ... [2023-12-16 17:42:26,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:42:26,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 17:42:26,055 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) [2023-12-16 17:42:26,075 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 [2023-12-16 17:42:26,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 17:42:26,098 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-12-16 17:42:26,098 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-12-16 17:42:26,098 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-16 17:42:26,098 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-16 17:42:26,098 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-16 17:42:26,098 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-16 17:42:26,098 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-12-16 17:42:26,098 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-12-16 17:42:26,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 17:42:26,099 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-12-16 17:42:26,099 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-12-16 17:42:26,099 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-12-16 17:42:26,101 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-12-16 17:42:26,101 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 17:42:26,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 17:42:26,176 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 17:42:26,177 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 17:42:26,406 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 17:42:26,481 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 17:42:26,481 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-16 17:42:26,482 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:42:26 BoogieIcfgContainer [2023-12-16 17:42:26,482 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 17:42:26,483 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 17:42:26,483 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 17:42:26,485 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 17:42:26,485 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 05:42:25" (1/3) ... [2023-12-16 17:42:26,512 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a773ecd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:42:26, skipping insertion in model container [2023-12-16 17:42:26,512 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:42:25" (2/3) ... [2023-12-16 17:42:26,512 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a773ecd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:42:26, skipping insertion in model container [2023-12-16 17:42:26,513 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:42:26" (3/3) ... [2023-12-16 17:42:26,514 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product34.cil.c [2023-12-16 17:42:26,543 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 17:42:26,543 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 17:42:26,579 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 17:42:26,584 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;@b697ee9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 17:42:26,584 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 17:42:26,587 INFO L276 IsEmpty]: Start isEmpty. Operand has 62 states, 44 states have (on average 1.5454545454545454) internal successors, (68), 50 states have internal predecessors, (68), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-16 17:42:26,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-16 17:42:26,593 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:42:26,594 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] [2023-12-16 17:42:26,594 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:42:26,597 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:42:26,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1879098729, now seen corresponding path program 1 times [2023-12-16 17:42:26,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:42:26,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [6789816] [2023-12-16 17:42:26,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:42:26,609 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:42:26,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:42:26,618 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:42:26,619 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 17:42:26,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:42:26,677 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 17:42:26,680 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:42:26,699 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 17:42:26,700 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:42:26,700 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:42:26,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [6789816] [2023-12-16 17:42:26,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [6789816] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:42:26,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:42:26,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:42:26,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98021494] [2023-12-16 17:42:26,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:42:26,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 17:42:26,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:42:26,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 17:42:26,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 17:42:26,741 INFO L87 Difference]: Start difference. First operand has 62 states, 44 states have (on average 1.5454545454545454) internal successors, (68), 50 states have internal predecessors, (68), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-16 17:42:26,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:42:26,801 INFO L93 Difference]: Finished difference Result 122 states and 177 transitions. [2023-12-16 17:42:26,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 17:42:26,807 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2023-12-16 17:42:26,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:42:26,814 INFO L225 Difference]: With dead ends: 122 [2023-12-16 17:42:26,814 INFO L226 Difference]: Without dead ends: 57 [2023-12-16 17:42:26,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 17:42:26,818 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:42:26,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 70 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:42:26,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2023-12-16 17:42:26,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2023-12-16 17:42:26,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 41 states have (on average 1.4146341463414633) internal successors, (58), 46 states have internal predecessors, (58), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-16 17:42:26,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 77 transitions. [2023-12-16 17:42:26,846 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 77 transitions. Word has length 22 [2023-12-16 17:42:26,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:42:26,846 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 77 transitions. [2023-12-16 17:42:26,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-16 17:42:26,846 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 77 transitions. [2023-12-16 17:42:26,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-16 17:42:26,848 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:42:26,848 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] [2023-12-16 17:42:26,850 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-16 17:42:27,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:42:27,051 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:42:27,052 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:42:27,052 INFO L85 PathProgramCache]: Analyzing trace with hash -446320839, now seen corresponding path program 1 times [2023-12-16 17:42:27,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:42:27,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [892638859] [2023-12-16 17:42:27,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:42:27,054 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:42:27,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:42:27,055 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:42:27,072 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 17:42:27,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:42:27,095 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:42:27,096 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:42:27,111 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 17:42:27,111 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:42:27,111 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:42:27,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [892638859] [2023-12-16 17:42:27,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [892638859] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:42:27,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:42:27,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:42:27,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046723070] [2023-12-16 17:42:27,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:42:27,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:42:27,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:42:27,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:42:27,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:42:27,114 INFO L87 Difference]: Start difference. First operand 57 states and 77 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-16 17:42:27,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:42:27,134 INFO L93 Difference]: Finished difference Result 87 states and 117 transitions. [2023-12-16 17:42:27,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:42:27,135 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2023-12-16 17:42:27,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:42:27,136 INFO L225 Difference]: With dead ends: 87 [2023-12-16 17:42:27,136 INFO L226 Difference]: Without dead ends: 49 [2023-12-16 17:42:27,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:42:27,137 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 11 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:42:27,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 99 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:42:27,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2023-12-16 17:42:27,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2023-12-16 17:42:27,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 36 states have (on average 1.4444444444444444) internal successors, (52), 41 states have internal predecessors, (52), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-16 17:42:27,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 66 transitions. [2023-12-16 17:42:27,142 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 66 transitions. Word has length 23 [2023-12-16 17:42:27,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:42:27,143 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 66 transitions. [2023-12-16 17:42:27,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-16 17:42:27,143 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 66 transitions. [2023-12-16 17:42:27,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-16 17:42:27,144 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:42:27,144 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] [2023-12-16 17:42:27,155 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-16 17:42:27,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:42:27,347 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:42:27,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:42:27,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1463609639, now seen corresponding path program 1 times [2023-12-16 17:42:27,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:42:27,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [893343205] [2023-12-16 17:42:27,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:42:27,348 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:42:27,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:42:27,349 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:42:27,354 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-16 17:42:27,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:42:27,384 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:42:27,385 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:42:27,401 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:42:27,401 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:42:27,401 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:42:27,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [893343205] [2023-12-16 17:42:27,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [893343205] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:42:27,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:42:27,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:42:27,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307472476] [2023-12-16 17:42:27,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:42:27,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:42:27,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:42:27,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:42:27,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:42:27,403 INFO L87 Difference]: Start difference. First operand 49 states and 66 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-16 17:42:27,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:42:27,432 INFO L93 Difference]: Finished difference Result 96 states and 131 transitions. [2023-12-16 17:42:27,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:42:27,433 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 26 [2023-12-16 17:42:27,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:42:27,434 INFO L225 Difference]: With dead ends: 96 [2023-12-16 17:42:27,434 INFO L226 Difference]: Without dead ends: 49 [2023-12-16 17:42:27,434 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:42:27,435 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 56 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:42:27,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 54 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:42:27,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2023-12-16 17:42:27,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2023-12-16 17:42:27,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 36 states have (on average 1.4166666666666667) internal successors, (51), 41 states have internal predecessors, (51), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-16 17:42:27,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 65 transitions. [2023-12-16 17:42:27,441 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 65 transitions. Word has length 26 [2023-12-16 17:42:27,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:42:27,442 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 65 transitions. [2023-12-16 17:42:27,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-16 17:42:27,442 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 65 transitions. [2023-12-16 17:42:27,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-16 17:42:27,443 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:42:27,443 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:42:27,455 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-16 17:42:27,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:42:27,655 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:42:27,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:42:27,656 INFO L85 PathProgramCache]: Analyzing trace with hash -2097176326, now seen corresponding path program 1 times [2023-12-16 17:42:27,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:42:27,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2118589223] [2023-12-16 17:42:27,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:42:27,657 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:42:27,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:42:27,658 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:42:27,665 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-16 17:42:27,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:42:27,708 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:42:27,714 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:42:27,777 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:42:27,777 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:42:27,777 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:42:27,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2118589223] [2023-12-16 17:42:27,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2118589223] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:42:27,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:42:27,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:42:27,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748729498] [2023-12-16 17:42:27,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:42:27,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:42:27,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:42:27,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:42:27,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:42:27,784 INFO L87 Difference]: Start difference. First operand 49 states and 65 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-16 17:42:27,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:42:27,840 INFO L93 Difference]: Finished difference Result 134 states and 180 transitions. [2023-12-16 17:42:27,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:42:27,841 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 31 [2023-12-16 17:42:27,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:42:27,842 INFO L225 Difference]: With dead ends: 134 [2023-12-16 17:42:27,842 INFO L226 Difference]: Without dead ends: 87 [2023-12-16 17:42:27,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:42:27,843 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 41 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:42:27,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 108 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:42:27,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2023-12-16 17:42:27,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 85. [2023-12-16 17:42:27,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 62 states have (on average 1.3870967741935485) internal successors, (86), 68 states have internal predecessors, (86), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (14), 12 states have call predecessors, (14), 12 states have call successors, (14) [2023-12-16 17:42:27,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 112 transitions. [2023-12-16 17:42:27,863 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 112 transitions. Word has length 31 [2023-12-16 17:42:27,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:42:27,863 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 112 transitions. [2023-12-16 17:42:27,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-16 17:42:27,863 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 112 transitions. [2023-12-16 17:42:27,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-12-16 17:42:27,866 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:42:27,866 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] [2023-12-16 17:42:27,869 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-16 17:42:28,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:42:28,069 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:42:28,069 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:42:28,069 INFO L85 PathProgramCache]: Analyzing trace with hash 602740188, now seen corresponding path program 1 times [2023-12-16 17:42:28,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:42:28,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1512510271] [2023-12-16 17:42:28,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:42:28,070 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:42:28,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:42:28,071 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:42:28,072 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-16 17:42:28,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:42:28,109 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:42:28,110 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:42:28,122 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:42:28,122 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:42:28,123 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:42:28,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1512510271] [2023-12-16 17:42:28,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1512510271] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:42:28,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:42:28,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:42:28,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073628283] [2023-12-16 17:42:28,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:42:28,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:42:28,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:42:28,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:42:28,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:42:28,124 INFO L87 Difference]: Start difference. First operand 85 states and 112 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-16 17:42:28,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:42:28,158 INFO L93 Difference]: Finished difference Result 170 states and 227 transitions. [2023-12-16 17:42:28,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:42:28,159 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 33 [2023-12-16 17:42:28,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:42:28,160 INFO L225 Difference]: With dead ends: 170 [2023-12-16 17:42:28,160 INFO L226 Difference]: Without dead ends: 87 [2023-12-16 17:42:28,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:42:28,161 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 1 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:42:28,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 158 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:42:28,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2023-12-16 17:42:28,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2023-12-16 17:42:28,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 64 states have (on average 1.375) internal successors, (88), 70 states have internal predecessors, (88), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (14), 12 states have call predecessors, (14), 12 states have call successors, (14) [2023-12-16 17:42:28,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 114 transitions. [2023-12-16 17:42:28,171 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 114 transitions. Word has length 33 [2023-12-16 17:42:28,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:42:28,171 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 114 transitions. [2023-12-16 17:42:28,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-16 17:42:28,171 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 114 transitions. [2023-12-16 17:42:28,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-12-16 17:42:28,172 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:42:28,172 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] [2023-12-16 17:42:28,176 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-16 17:42:28,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:42:28,377 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:42:28,377 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:42:28,377 INFO L85 PathProgramCache]: Analyzing trace with hash 15934174, now seen corresponding path program 1 times [2023-12-16 17:42:28,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:42:28,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [123212532] [2023-12-16 17:42:28,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:42:28,378 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:42:28,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:42:28,379 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:42:28,387 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-16 17:42:28,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:42:28,418 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:42:28,422 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:42:28,437 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:42:28,437 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:42:28,438 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:42:28,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [123212532] [2023-12-16 17:42:28,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [123212532] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:42:28,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:42:28,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:42:28,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216223433] [2023-12-16 17:42:28,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:42:28,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:42:28,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:42:28,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:42:28,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:42:28,439 INFO L87 Difference]: Start difference. First operand 87 states and 114 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-16 17:42:28,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:42:28,487 INFO L93 Difference]: Finished difference Result 188 states and 252 transitions. [2023-12-16 17:42:28,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:42:28,488 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 33 [2023-12-16 17:42:28,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:42:28,489 INFO L225 Difference]: With dead ends: 188 [2023-12-16 17:42:28,489 INFO L226 Difference]: Without dead ends: 103 [2023-12-16 17:42:28,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:42:28,493 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 16 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:42:28,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 181 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:42:28,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2023-12-16 17:42:28,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 89. [2023-12-16 17:42:28,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 66 states have (on average 1.3636363636363635) internal successors, (90), 72 states have internal predecessors, (90), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (14), 12 states have call predecessors, (14), 12 states have call successors, (14) [2023-12-16 17:42:28,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 116 transitions. [2023-12-16 17:42:28,518 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 116 transitions. Word has length 33 [2023-12-16 17:42:28,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:42:28,518 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 116 transitions. [2023-12-16 17:42:28,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-16 17:42:28,518 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 116 transitions. [2023-12-16 17:42:28,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-12-16 17:42:28,519 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:42:28,519 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] [2023-12-16 17:42:28,538 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-12-16 17:42:28,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:42:28,722 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:42:28,723 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:42:28,723 INFO L85 PathProgramCache]: Analyzing trace with hash -1263929504, now seen corresponding path program 1 times [2023-12-16 17:42:28,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:42:28,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [37379169] [2023-12-16 17:42:28,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:42:28,723 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:42:28,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:42:28,727 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:42:28,750 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-16 17:42:28,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:42:28,772 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:42:28,774 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:42:28,797 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:42:28,797 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:42:28,797 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:42:28,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [37379169] [2023-12-16 17:42:28,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [37379169] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:42:28,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:42:28,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:42:28,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760371307] [2023-12-16 17:42:28,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:42:28,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:42:28,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:42:28,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:42:28,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:42:28,799 INFO L87 Difference]: Start difference. First operand 89 states and 116 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-16 17:42:28,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:42:28,830 INFO L93 Difference]: Finished difference Result 218 states and 286 transitions. [2023-12-16 17:42:28,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:42:28,830 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 33 [2023-12-16 17:42:28,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:42:28,831 INFO L225 Difference]: With dead ends: 218 [2023-12-16 17:42:28,831 INFO L226 Difference]: Without dead ends: 131 [2023-12-16 17:42:28,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:42:28,832 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 33 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:42:28,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 109 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:42:28,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2023-12-16 17:42:28,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 129. [2023-12-16 17:42:28,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 96 states have (on average 1.3333333333333333) internal successors, (128), 103 states have internal predecessors, (128), 18 states have call successors, (18), 15 states have call predecessors, (18), 14 states have return successors, (20), 17 states have call predecessors, (20), 18 states have call successors, (20) [2023-12-16 17:42:28,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 166 transitions. [2023-12-16 17:42:28,849 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 166 transitions. Word has length 33 [2023-12-16 17:42:28,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:42:28,849 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 166 transitions. [2023-12-16 17:42:28,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-16 17:42:28,849 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 166 transitions. [2023-12-16 17:42:28,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-16 17:42:28,853 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:42:28,853 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] [2023-12-16 17:42:28,866 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-16 17:42:29,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:42:29,060 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:42:29,060 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:42:29,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1182528474, now seen corresponding path program 1 times [2023-12-16 17:42:29,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:42:29,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [217340827] [2023-12-16 17:42:29,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:42:29,060 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:42:29,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:42:29,067 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:42:29,068 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-16 17:42:29,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:42:29,107 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 17:42:29,108 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:42:29,159 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-16 17:42:29,159 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:42:29,160 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:42:29,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [217340827] [2023-12-16 17:42:29,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [217340827] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:42:29,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:42:29,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:42:29,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821311266] [2023-12-16 17:42:29,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:42:29,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 17:42:29,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:42:29,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 17:42:29,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:42:29,161 INFO L87 Difference]: Start difference. First operand 129 states and 166 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-16 17:42:29,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:42:29,230 INFO L93 Difference]: Finished difference Result 257 states and 332 transitions. [2023-12-16 17:42:29,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 17:42:29,231 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 36 [2023-12-16 17:42:29,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:42:29,232 INFO L225 Difference]: With dead ends: 257 [2023-12-16 17:42:29,232 INFO L226 Difference]: Without dead ends: 130 [2023-12-16 17:42:29,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:42:29,232 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 23 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:42:29,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 244 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:42:29,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2023-12-16 17:42:29,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 127. [2023-12-16 17:42:29,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 94 states have (on average 1.297872340425532) internal successors, (122), 101 states have internal predecessors, (122), 18 states have call successors, (18), 15 states have call predecessors, (18), 14 states have return successors, (20), 17 states have call predecessors, (20), 18 states have call successors, (20) [2023-12-16 17:42:29,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 160 transitions. [2023-12-16 17:42:29,241 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 160 transitions. Word has length 36 [2023-12-16 17:42:29,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:42:29,241 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 160 transitions. [2023-12-16 17:42:29,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-16 17:42:29,241 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 160 transitions. [2023-12-16 17:42:29,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-12-16 17:42:29,241 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:42:29,242 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] [2023-12-16 17:42:29,244 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2023-12-16 17:42:29,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:42:29,443 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:42:29,444 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:42:29,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1732713478, now seen corresponding path program 1 times [2023-12-16 17:42:29,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:42:29,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [514749275] [2023-12-16 17:42:29,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:42:29,445 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:42:29,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:42:29,445 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:42:29,458 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-16 17:42:29,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:42:29,498 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 17:42:29,500 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:42:29,567 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:42:29,567 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:42:29,567 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:42:29,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [514749275] [2023-12-16 17:42:29,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [514749275] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:42:29,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:42:29,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 17:42:29,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245919136] [2023-12-16 17:42:29,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:42:29,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:42:29,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:42:29,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:42:29,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:42:29,569 INFO L87 Difference]: Start difference. First operand 127 states and 160 transitions. Second operand has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-16 17:42:29,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:42:29,795 INFO L93 Difference]: Finished difference Result 423 states and 553 transitions. [2023-12-16 17:42:29,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 17:42:29,795 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 37 [2023-12-16 17:42:29,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:42:29,801 INFO L225 Difference]: With dead ends: 423 [2023-12-16 17:42:29,801 INFO L226 Difference]: Without dead ends: 337 [2023-12-16 17:42:29,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2023-12-16 17:42:29,803 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 166 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:42:29,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 324 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:42:29,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2023-12-16 17:42:29,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 319. [2023-12-16 17:42:29,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 238 states have (on average 1.2773109243697478) internal successors, (304), 257 states have internal predecessors, (304), 44 states have call successors, (44), 33 states have call predecessors, (44), 36 states have return successors, (54), 42 states have call predecessors, (54), 44 states have call successors, (54) [2023-12-16 17:42:29,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 402 transitions. [2023-12-16 17:42:29,831 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 402 transitions. Word has length 37 [2023-12-16 17:42:29,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:42:29,831 INFO L495 AbstractCegarLoop]: Abstraction has 319 states and 402 transitions. [2023-12-16 17:42:29,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-16 17:42:29,831 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 402 transitions. [2023-12-16 17:42:29,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-16 17:42:29,832 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:42:29,832 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2023-12-16 17:42:29,834 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2023-12-16 17:42:30,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:42:30,034 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:42:30,035 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:42:30,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1713794751, now seen corresponding path program 1 times [2023-12-16 17:42:30,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:42:30,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1030253690] [2023-12-16 17:42:30,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:42:30,035 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:42:30,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:42:30,036 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:42:30,037 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-16 17:42:30,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:42:30,109 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 17:42:30,118 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:42:30,211 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 18 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:42:30,211 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:42:30,312 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-16 17:42:30,313 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:42:30,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1030253690] [2023-12-16 17:42:30,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1030253690] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:42:30,313 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:42:30,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-12-16 17:42:30,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487270793] [2023-12-16 17:42:30,313 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:42:30,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 17:42:30,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:42:30,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 17:42:30,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-12-16 17:42:30,314 INFO L87 Difference]: Start difference. First operand 319 states and 402 transitions. Second operand has 10 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 5 states have call successors, (11), 4 states have call predecessors, (11), 6 states have return successors, (10), 7 states have call predecessors, (10), 5 states have call successors, (10) [2023-12-16 17:42:30,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:42:30,495 INFO L93 Difference]: Finished difference Result 516 states and 674 transitions. [2023-12-16 17:42:30,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 17:42:30,495 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 5 states have call successors, (11), 4 states have call predecessors, (11), 6 states have return successors, (10), 7 states have call predecessors, (10), 5 states have call successors, (10) Word has length 63 [2023-12-16 17:42:30,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:42:30,496 INFO L225 Difference]: With dead ends: 516 [2023-12-16 17:42:30,496 INFO L226 Difference]: Without dead ends: 0 [2023-12-16 17:42:30,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2023-12-16 17:42:30,497 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 105 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:42:30,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 452 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:42:30,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-16 17:42:30,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-16 17:42:30,498 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) [2023-12-16 17:42:30,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-16 17:42:30,498 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 63 [2023-12-16 17:42:30,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:42:30,498 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-16 17:42:30,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 5 states have call successors, (11), 4 states have call predecessors, (11), 6 states have return successors, (10), 7 states have call predecessors, (10), 5 states have call successors, (10) [2023-12-16 17:42:30,498 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-16 17:42:30,498 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-16 17:42:30,500 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 17:42:30,505 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-16 17:42:30,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:42:30,704 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-16 17:42:31,780 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 670 676) no Hoare annotation was computed. [2023-12-16 17:42:31,780 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 670 676) the Hoare annotation is: true [2023-12-16 17:42:31,780 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 496 507) the Hoare annotation is: true [2023-12-16 17:42:31,780 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 496 507) no Hoare annotation was computed. [2023-12-16 17:42:31,780 INFO L899 garLoopResultBuilder]: For program point L500-1(lines 496 507) no Hoare annotation was computed. [2023-12-16 17:42:31,780 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 853 882) no Hoare annotation was computed. [2023-12-16 17:42:31,781 INFO L902 garLoopResultBuilder]: At program point L863-2(lines 863 877) the Hoare annotation is: true [2023-12-16 17:42:31,781 INFO L902 garLoopResultBuilder]: At program point L859(line 859) the Hoare annotation is: true [2023-12-16 17:42:31,781 INFO L899 garLoopResultBuilder]: For program point L859-1(line 859) no Hoare annotation was computed. [2023-12-16 17:42:31,781 INFO L899 garLoopResultBuilder]: For program point L878(lines 853 882) no Hoare annotation was computed. [2023-12-16 17:42:31,781 INFO L899 garLoopResultBuilder]: For program point L874(line 874) no Hoare annotation was computed. [2023-12-16 17:42:31,781 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 853 882) the Hoare annotation is: true [2023-12-16 17:42:31,781 INFO L899 garLoopResultBuilder]: For program point L867(lines 867 871) no Hoare annotation was computed. [2023-12-16 17:42:31,781 INFO L902 garLoopResultBuilder]: At program point L867-1(lines 867 871) the Hoare annotation is: true [2023-12-16 17:42:31,781 INFO L895 garLoopResultBuilder]: At program point L832(line 832) the Hoare annotation is: (let ((.cse5 (not (= |old(~pumpRunning~0)| (_ bv1 32)))) (.cse2 (= (_ bv1 32) ~pumpRunning~0)) (.cse3 (= ~switchedOnBeforeTS~0 (_ bv1 32))) (.cse4 (= ~waterLevel~0 (_ bv1 32))) (.cse0 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse1 (not (= ~systemActive~0 (_ bv1 32)))) (.cse6 (not (= |old(~pumpRunning~0)| (_ bv0 32))))) (and (or .cse0 .cse1 (and .cse2 .cse3 .cse4) .cse5) (or .cse1 .cse5 (not (= |old(~switchedOnBeforeTS~0)| (_ bv1 32))) (and .cse2 .cse3)) (or (and .cse4 (= (_ bv0 32) ~pumpRunning~0)) .cse1 .cse6 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (or .cse0 .cse1 .cse6))) [2023-12-16 17:42:31,781 INFO L899 garLoopResultBuilder]: For program point L832-1(line 832) no Hoare annotation was computed. [2023-12-16 17:42:31,782 INFO L895 garLoopResultBuilder]: At program point L692(line 692) the Hoare annotation is: (let ((.cse4 (= ~systemActive~0 (_ bv1 32)))) (let ((.cse0 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse6 (not (= |old(~pumpRunning~0)| (_ bv1 32)))) (.cse1 (not .cse4)) (.cse3 (= |timeShift_processEnvironment_~tmp~4#1| (_ bv0 32))) (.cse5 (= (_ bv0 32) ~pumpRunning~0)) (.cse2 (not (= |old(~pumpRunning~0)| (_ bv0 32))))) (and (or .cse0 .cse1 .cse2 (and (= ~waterLevel~0 (_ bv2 32)) .cse3 .cse4 .cse5)) (or .cse0 .cse1 .cse6) (or .cse1 .cse6 (not (= |old(~switchedOnBeforeTS~0)| (_ bv1 32)))) (or .cse1 (and .cse3 .cse4 (= ~waterLevel~0 (_ bv1 32)) .cse5) .cse2 (not (= (_ bv1 32) |old(~waterLevel~0)|)))))) [2023-12-16 17:42:31,782 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDry_returnLabel#1(lines 549 562) no Hoare annotation was computed. [2023-12-16 17:42:31,782 INFO L895 garLoopResultBuilder]: At program point L697(line 697) the Hoare annotation is: (let ((.cse4 (not (= |old(~pumpRunning~0)| (_ bv1 32)))) (.cse2 (= (_ bv1 32) ~pumpRunning~0)) (.cse3 (= ~switchedOnBeforeTS~0 (_ bv1 32))) (.cse0 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse1 (not (= ~systemActive~0 (_ bv1 32)))) (.cse5 (not (= |old(~pumpRunning~0)| (_ bv0 32))))) (and (or .cse0 .cse1 (and .cse2 .cse3 (= ~waterLevel~0 (_ bv1 32))) .cse4) (or .cse1 .cse4 (not (= |old(~switchedOnBeforeTS~0)| (_ bv1 32))) (and .cse2 .cse3)) (or .cse1 .cse5 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (or .cse0 .cse1 .cse5))) [2023-12-16 17:42:31,782 INFO L899 garLoopResultBuilder]: For program point L697-1(lines 678 702) no Hoare annotation was computed. [2023-12-16 17:42:31,782 INFO L895 garLoopResultBuilder]: At program point L817(line 817) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse5 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse1 (not (= ~systemActive~0 (_ bv1 32)))) (.cse4 (not (= |old(~pumpRunning~0)| (_ bv1 32)))) (.cse3 (= (_ bv1 32) ~pumpRunning~0)) (.cse6 (= ~waterLevel~0 (_ bv2 32)))) (and (or (and (= ~waterLevel~0 (_ bv1 32)) .cse0) .cse1 .cse2 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (or .cse1 (and .cse3 (= ~switchedOnBeforeTS~0 (_ bv1 32)) (= ~waterLevel~0 |old(~waterLevel~0)|)) .cse4 (not (= |old(~switchedOnBeforeTS~0)| (_ bv1 32)))) (or .cse5 .cse1 .cse2 (and .cse6 .cse0)) (or .cse5 .cse1 .cse4 (and .cse3 .cse6)))) [2023-12-16 17:42:31,782 INFO L899 garLoopResultBuilder]: For program point L817-1(line 817) no Hoare annotation was computed. [2023-12-16 17:42:31,782 INFO L899 garLoopResultBuilder]: For program point L784(lines 784 788) no Hoare annotation was computed. [2023-12-16 17:42:31,782 INFO L899 garLoopResultBuilder]: For program point L784-2(lines 784 788) no Hoare annotation was computed. [2023-12-16 17:42:31,782 INFO L899 garLoopResultBuilder]: For program point L553(lines 553 559) no Hoare annotation was computed. [2023-12-16 17:42:31,782 INFO L899 garLoopResultBuilder]: For program point L834(lines 834 844) no Hoare annotation was computed. [2023-12-16 17:42:31,782 INFO L899 garLoopResultBuilder]: For program point L830(lines 830 847) no Hoare annotation was computed. [2023-12-16 17:42:31,782 INFO L899 garLoopResultBuilder]: For program point L830-1(lines 822 850) no Hoare annotation was computed. [2023-12-16 17:42:31,783 INFO L899 garLoopResultBuilder]: For program point L657-1(lines 657 663) no Hoare annotation was computed. [2023-12-16 17:42:31,783 INFO L899 garLoopResultBuilder]: For program point L686(lines 686 694) no Hoare annotation was computed. [2023-12-16 17:42:31,783 INFO L899 garLoopResultBuilder]: For program point L682(lines 682 699) no Hoare annotation was computed. [2023-12-16 17:42:31,783 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 643 669) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse5 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse1 (not (= ~systemActive~0 (_ bv1 32)))) (.cse4 (not (= |old(~pumpRunning~0)| (_ bv1 32)))) (.cse3 (= (_ bv1 32) ~pumpRunning~0)) (.cse6 (= ~waterLevel~0 (_ bv2 32)))) (and (or (and (= ~waterLevel~0 (_ bv1 32)) .cse0) .cse1 .cse2 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (or .cse1 (and .cse3 (= ~switchedOnBeforeTS~0 (_ bv1 32)) (= ~waterLevel~0 |old(~waterLevel~0)|)) .cse4 (not (= |old(~switchedOnBeforeTS~0)| (_ bv1 32)))) (or .cse5 .cse1 .cse2 (and .cse6 .cse0)) (or .cse5 .cse1 .cse4 (and .cse3 .cse6)))) [2023-12-16 17:42:31,783 INFO L899 garLoopResultBuilder]: For program point L835(lines 835 841) no Hoare annotation was computed. [2023-12-16 17:42:31,783 INFO L899 garLoopResultBuilder]: For program point L476(lines 476 480) no Hoare annotation was computed. [2023-12-16 17:42:31,783 INFO L899 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2023-12-16 17:42:31,783 INFO L899 garLoopResultBuilder]: For program point L476-2(lines 472 483) no Hoare annotation was computed. [2023-12-16 17:42:31,783 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 643 669) no Hoare annotation was computed. [2023-12-16 17:42:31,783 INFO L899 garLoopResultBuilder]: For program point L650(lines 650 656) no Hoare annotation was computed. [2023-12-16 17:42:31,783 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 92) no Hoare annotation was computed. [2023-12-16 17:42:31,783 INFO L899 garLoopResultBuilder]: For program point L650-2(lines 646 668) no Hoare annotation was computed. [2023-12-16 17:42:31,783 INFO L899 garLoopResultBuilder]: For program point L597(lines 597 603) no Hoare annotation was computed. [2023-12-16 17:42:31,783 INFO L899 garLoopResultBuilder]: For program point L597-1(lines 597 603) no Hoare annotation was computed. [2023-12-16 17:42:31,784 INFO L895 garLoopResultBuilder]: At program point L622(lines 577 624) the Hoare annotation is: (let ((.cse0 (= (_ bv1 32) ~pumpRunning~0)) (.cse4 (= ~waterLevel~0 (_ bv2 32))) (.cse1 (= ~systemActive~0 (_ bv1 32))) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| (_ bv0 32))) (.cse3 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 (= ~switchedOnBeforeTS~0 (_ bv1 32)) .cse2) (and .cse1 (= ~waterLevel~0 (_ bv1 32)) .cse2 .cse3) (and .cse0 .cse4 .cse1 .cse2) (and .cse4 .cse1 .cse2 .cse3))) [2023-12-16 17:42:31,784 INFO L895 garLoopResultBuilder]: At program point L589(line 589) the Hoare annotation is: (let ((.cse0 (= (_ bv1 32) ~pumpRunning~0)) (.cse4 (= ~waterLevel~0 (_ bv2 32))) (.cse1 (= ~systemActive~0 (_ bv1 32))) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| (_ bv0 32))) (.cse3 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 (= ~switchedOnBeforeTS~0 (_ bv1 32)) .cse2) (and .cse1 (= ~waterLevel~0 (_ bv1 32)) .cse2 .cse3) (and .cse0 .cse4 .cse1 .cse2) (and .cse4 .cse1 .cse2 .cse3))) [2023-12-16 17:42:31,784 INFO L899 garLoopResultBuilder]: For program point L615(lines 615 619) no Hoare annotation was computed. [2023-12-16 17:42:31,784 INFO L895 garLoopResultBuilder]: At program point L615-2(lines 607 620) the Hoare annotation is: (let ((.cse0 (= (_ bv1 32) ~pumpRunning~0)) (.cse4 (= ~waterLevel~0 (_ bv2 32))) (.cse1 (= ~systemActive~0 (_ bv1 32))) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| (_ bv0 32))) (.cse3 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 (= ~switchedOnBeforeTS~0 (_ bv1 32)) .cse2) (and .cse1 (= ~waterLevel~0 (_ bv1 32)) .cse2 .cse3) (and .cse0 .cse4 .cse1 .cse2) (and .cse4 .cse1 .cse2 .cse3))) [2023-12-16 17:42:31,784 INFO L899 garLoopResultBuilder]: For program point L578(lines 577 624) no Hoare annotation was computed. [2023-12-16 17:42:31,784 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-16 17:42:31,784 INFO L899 garLoopResultBuilder]: For program point L607(lines 607 620) no Hoare annotation was computed. [2023-12-16 17:42:31,784 INFO L895 garLoopResultBuilder]: At program point L599(line 599) the Hoare annotation is: (let ((.cse0 (= (_ bv1 32) ~pumpRunning~0)) (.cse4 (= ~waterLevel~0 (_ bv2 32))) (.cse1 (= ~systemActive~0 (_ bv1 32))) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| (_ bv0 32))) (.cse3 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 (= ~switchedOnBeforeTS~0 (_ bv1 32)) .cse2) (and .cse1 (= ~waterLevel~0 (_ bv1 32)) .cse2 .cse3) (and .cse0 .cse4 .cse1 .cse2) (and .cse4 .cse1 .cse2 .cse3))) [2023-12-16 17:42:31,784 INFO L899 garLoopResultBuilder]: For program point L628(lines 567 632) no Hoare annotation was computed. [2023-12-16 17:42:31,784 INFO L899 garLoopResultBuilder]: For program point L587(lines 587 593) no Hoare annotation was computed. [2023-12-16 17:42:31,784 INFO L899 garLoopResultBuilder]: For program point L587-1(lines 587 593) no Hoare annotation was computed. [2023-12-16 17:42:31,784 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-16 17:42:31,784 INFO L895 garLoopResultBuilder]: At program point L625(lines 576 626) the Hoare annotation is: false [2023-12-16 17:42:31,785 INFO L899 garLoopResultBuilder]: For program point L935(lines 935 942) no Hoare annotation was computed. [2023-12-16 17:42:31,785 INFO L899 garLoopResultBuilder]: For program point L935-2(lines 935 942) no Hoare annotation was computed. [2023-12-16 17:42:31,785 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 484 495) no Hoare annotation was computed. [2023-12-16 17:42:31,785 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 484 495) the Hoare annotation is: (let ((.cse0 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse1 (= ~waterLevel~0 (_ bv2 32))) (.cse4 (not (= (_ bv0 32) ~pumpRunning~0))) (.cse2 (not (= ~systemActive~0 (_ bv1 32)))) (.cse3 (not (= (_ bv1 32) ~pumpRunning~0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse2 (not (= (_ bv1 32) |old(~waterLevel~0)|)) (= ~waterLevel~0 (_ bv1 32))) (or .cse0 .cse1 .cse4 .cse2) (or .cse2 (not (= ~switchedOnBeforeTS~0 (_ bv1 32))) .cse3 (= ~waterLevel~0 |old(~waterLevel~0)|)))) [2023-12-16 17:42:31,785 INFO L899 garLoopResultBuilder]: For program point L488-1(lines 484 495) no Hoare annotation was computed. [2023-12-16 17:42:31,785 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 730 738) no Hoare annotation was computed. [2023-12-16 17:42:31,785 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 730 738) the Hoare annotation is: true [2023-12-16 17:42:31,787 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:42:31,788 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 17:42:31,795 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 05:42:31 BoogieIcfgContainer [2023-12-16 17:42:31,795 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 17:42:31,795 INFO L158 Benchmark]: Toolchain (without parser) took 6342.99ms. Allocated memory was 181.4MB in the beginning and 276.8MB in the end (delta: 95.4MB). Free memory was 127.2MB in the beginning and 208.8MB in the end (delta: -81.5MB). Peak memory consumption was 138.0MB. Max. memory is 8.0GB. [2023-12-16 17:42:31,796 INFO L158 Benchmark]: CDTParser took 0.47ms. Allocated memory is still 181.4MB. Free memory is still 133.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 17:42:31,796 INFO L158 Benchmark]: CACSL2BoogieTranslator took 468.53ms. Allocated memory is still 181.4MB. Free memory was 127.2MB in the beginning and 101.5MB in the end (delta: 25.7MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. [2023-12-16 17:42:31,796 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.06ms. Allocated memory is still 181.4MB. Free memory was 101.5MB in the beginning and 99.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-16 17:42:31,796 INFO L158 Benchmark]: Boogie Preprocessor took 47.45ms. Allocated memory is still 181.4MB. Free memory was 99.4MB in the beginning and 96.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-16 17:42:31,796 INFO L158 Benchmark]: RCFGBuilder took 459.74ms. Allocated memory is still 181.4MB. Free memory was 96.8MB in the beginning and 69.0MB in the end (delta: 27.8MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. [2023-12-16 17:42:31,796 INFO L158 Benchmark]: TraceAbstraction took 5312.03ms. Allocated memory was 181.4MB in the beginning and 276.8MB in the end (delta: 95.4MB). Free memory was 68.5MB in the beginning and 208.8MB in the end (delta: -140.2MB). Peak memory consumption was 79.3MB. Max. memory is 8.0GB. [2023-12-16 17:42:31,797 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47ms. Allocated memory is still 181.4MB. Free memory is still 133.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 468.53ms. Allocated memory is still 181.4MB. Free memory was 127.2MB in the beginning and 101.5MB in the end (delta: 25.7MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 51.06ms. Allocated memory is still 181.4MB. Free memory was 101.5MB in the beginning and 99.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 47.45ms. Allocated memory is still 181.4MB. Free memory was 99.4MB in the beginning and 96.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 459.74ms. Allocated memory is still 181.4MB. Free memory was 96.8MB in the beginning and 69.0MB in the end (delta: 27.8MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. * TraceAbstraction took 5312.03ms. Allocated memory was 181.4MB in the beginning and 276.8MB in the end (delta: 95.4MB). Free memory was 68.5MB in the beginning and 208.8MB in the end (delta: -140.2MB). Peak memory consumption was 79.3MB. 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,"featureselect.i","") [49] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [87] - GenericResultAtLocation [Line: 96]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [96] - GenericResultAtLocation [Line: 462]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [462] - GenericResultAtLocation [Line: 563]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [563] - GenericResultAtLocation [Line: 633]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [633] - GenericResultAtLocation [Line: 802]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [802] - GenericResultAtLocation [Line: 851]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [851] * 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: 92]: 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 7 procedures, 62 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.2s, OverallIterations: 10, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 473 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 452 mSDsluCounter, 1799 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1137 mSDsCounter, 79 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 712 IncrementalHoareTripleChecker+Invalid, 791 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 79 mSolverCounterUnsat, 662 mSDtfsCounter, 712 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 404 GetRequests, 365 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=319occurred in iteration=9, InterpolantAutomatonStates: 52, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 39 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 18 LocationsWithAnnotation, 312 PreInvPairs, 356 NumberOfFragments, 679 HoareAnnotationTreeSize, 312 FormulaSimplifications, 228 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 18 FormulaSimplificationsInter, 968 FormulaSimplificationTreeSizeReductionInter, 1.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 337 NumberOfCodeBlocks, 337 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 389 ConstructedInterpolants, 0 QuantifiedInterpolants, 787 SizeOfPredicates, 14 NumberOfNonLiveVariables, 1010 ConjunctsInSsa, 46 ConjunctsInUnsatCore, 11 InterpolantComputations, 9 PerfectInterpolantSequences, 55/64 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: 576]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 577]: Loop Invariant Derived loop invariant: (((((((1 == pumpRunning) && (systemActive == 1)) && (switchedOnBeforeTS == 1)) && (splverifierCounter == 0)) || ((((systemActive == 1) && (waterLevel == 1)) && (splverifierCounter == 0)) && (0 == pumpRunning))) || ((((1 == pumpRunning) && (waterLevel == 2)) && (systemActive == 1)) && (splverifierCounter == 0))) || ((((waterLevel == 2) && (systemActive == 1)) && (splverifierCounter == 0)) && (0 == pumpRunning))) - InvariantResult [Line: 863]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-12-16 17:42:31,828 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request...