/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_spec4_product59.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 06:03:52,475 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 06:03:52,599 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-25 06:03:52,604 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 06:03:52,604 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 06:03:52,642 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 06:03:52,642 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 06:03:52,643 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 06:03:52,643 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 06:03:52,646 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 06:03:52,646 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 06:03:52,647 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 06:03:52,647 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 06:03:52,648 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 06:03:52,648 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 06:03:52,649 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 06:03:52,649 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 06:03:52,649 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 06:03:52,649 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 06:03:52,650 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 06:03:52,650 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 06:03:52,651 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 06:03:52,651 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 06:03:52,651 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 06:03:52,651 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 06:03:52,651 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 06:03:52,651 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 06:03:52,651 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 06:03:52,652 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 06:03:52,652 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 06:03:52,652 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 06:03:52,653 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 06:03:52,653 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 06:03:52,653 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 06:03:52,653 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 06:03:52,653 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 06:03:52,653 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 06:03:52,653 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 06:03:52,653 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 06:03:52,653 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 06:03:52,654 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 06:03:52,654 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 06:03:52,654 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 06:03:52,654 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 06:03:52,654 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 06:03:52,654 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 06:03:52,654 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 06:03:53,016 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 06:03:53,038 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 06:03:53,040 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 06:03:53,041 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 06:03:53,042 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 06:03:53,043 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product59.cil.c [2023-12-25 06:03:54,206 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 06:03:54,424 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 06:03:54,424 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product59.cil.c [2023-12-25 06:03:54,436 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87bd62804/6382fe3c159140b3b8d98d1f30208f15/FLAG2cef08913 [2023-12-25 06:03:54,447 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87bd62804/6382fe3c159140b3b8d98d1f30208f15 [2023-12-25 06:03:54,450 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 06:03:54,451 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 06:03:54,453 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 06:03:54,453 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 06:03:54,457 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 06:03:54,457 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 06:03:54" (1/1) ... [2023-12-25 06:03:54,458 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@159efb29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:03:54, skipping insertion in model container [2023-12-25 06:03:54,458 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 06:03:54" (1/1) ... [2023-12-25 06:03:54,505 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 06:03:54,685 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_spec4_product59.cil.c[9171,9184] [2023-12-25 06:03:54,750 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 06:03:54,768 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-25 06:03:54,775 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 06:03:54,806 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_spec4_product59.cil.c[9171,9184] [2023-12-25 06:03:54,840 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 06:03:54,859 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 06:03:54,866 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] [2023-12-25 06:03:54,867 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [87] [2023-12-25 06:03:54,867 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [116] [2023-12-25 06:03:54,867 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [188] [2023-12-25 06:03:54,867 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [426] [2023-12-25 06:03:54,868 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [522] [2023-12-25 06:03:54,868 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [625] [2023-12-25 06:03:54,868 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [634] [2023-12-25 06:03:54,881 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_spec4_product59.cil.c[9171,9184] [2023-12-25 06:03:54,900 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 06:03:54,921 INFO L206 MainTranslator]: Completed translation [2023-12-25 06:03:54,921 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:03:54 WrapperNode [2023-12-25 06:03:54,922 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 06:03:54,922 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 06:03:54,923 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 06:03:54,923 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 06:03:54,928 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:03:54" (1/1) ... [2023-12-25 06:03:54,953 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:03:54" (1/1) ... [2023-12-25 06:03:54,979 INFO L138 Inliner]: procedures = 59, calls = 102, calls flagged for inlining = 26, calls inlined = 23, statements flattened = 217 [2023-12-25 06:03:54,980 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 06:03:54,980 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 06:03:54,980 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 06:03:54,980 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 06:03:54,989 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:03:54" (1/1) ... [2023-12-25 06:03:54,989 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:03:54" (1/1) ... [2023-12-25 06:03:55,002 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:03:54" (1/1) ... [2023-12-25 06:03:55,024 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]. [2023-12-25 06:03:55,024 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:03:54" (1/1) ... [2023-12-25 06:03:55,025 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:03:54" (1/1) ... [2023-12-25 06:03:55,029 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:03:54" (1/1) ... [2023-12-25 06:03:55,031 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:03:54" (1/1) ... [2023-12-25 06:03:55,043 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:03:54" (1/1) ... [2023-12-25 06:03:55,044 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:03:54" (1/1) ... [2023-12-25 06:03:55,046 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 06:03:55,047 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 06:03:55,047 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 06:03:55,047 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 06:03:55,048 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:03:54" (1/1) ... [2023-12-25 06:03:55,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 06:03:55,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 06:03:55,097 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) [2023-12-25 06:03:55,116 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 [2023-12-25 06:03:55,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 06:03:55,126 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-12-25 06:03:55,127 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-12-25 06:03:55,127 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-25 06:03:55,127 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-25 06:03:55,127 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-25 06:03:55,127 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-25 06:03:55,127 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-12-25 06:03:55,127 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-12-25 06:03:55,128 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-12-25 06:03:55,128 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-12-25 06:03:55,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 06:03:55,128 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-12-25 06:03:55,130 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-12-25 06:03:55,130 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-12-25 06:03:55,131 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-12-25 06:03:55,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 06:03:55,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 06:03:55,213 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 06:03:55,215 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 06:03:55,585 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 06:03:55,649 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 06:03:55,649 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-25 06:03:55,649 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 06:03:55 BoogieIcfgContainer [2023-12-25 06:03:55,649 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 06:03:55,651 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 06:03:55,651 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 06:03:55,653 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 06:03:55,654 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 06:03:54" (1/3) ... [2023-12-25 06:03:55,654 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33aa2782 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 06:03:55, skipping insertion in model container [2023-12-25 06:03:55,654 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:03:54" (2/3) ... [2023-12-25 06:03:55,654 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33aa2782 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 06:03:55, skipping insertion in model container [2023-12-25 06:03:55,655 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 06:03:55" (3/3) ... [2023-12-25 06:03:55,655 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product59.cil.c [2023-12-25 06:03:55,668 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 06:03:55,669 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 06:03:55,701 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 06:03:55,706 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;@4fbd48be, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 06:03:55,706 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 06:03:55,710 INFO L276 IsEmpty]: Start isEmpty. Operand has 71 states, 50 states have (on average 1.56) internal successors, (78), 59 states have internal predecessors, (78), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 9 states have call predecessors, (12), 12 states have call successors, (12) [2023-12-25 06:03:55,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-25 06:03:55,715 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:03:55,716 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 06:03:55,716 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:03:55,720 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:03:55,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1515543352, now seen corresponding path program 1 times [2023-12-25 06:03:55,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:03:55,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1336746875] [2023-12-25 06:03:55,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 06:03:55,730 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 [2023-12-25 06:03:55,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:03:55,733 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) [2023-12-25 06:03:55,764 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 [2023-12-25 06:03:55,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 06:03:55,792 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-25 06:03:55,795 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:03:55,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 06:03:55,811 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 06:03:55,811 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:03:55,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1336746875] [2023-12-25 06:03:55,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1336746875] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 06:03:55,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 06:03:55,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 06:03:55,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067317823] [2023-12-25 06:03:55,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 06:03:55,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-25 06:03:55,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:03:55,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-25 06:03:55,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 06:03:55,837 INFO L87 Difference]: Start difference. First operand has 71 states, 50 states have (on average 1.56) internal successors, (78), 59 states have internal predecessors, (78), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 9 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 06:03:55,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:03:55,878 INFO L93 Difference]: Finished difference Result 140 states and 205 transitions. [2023-12-25 06:03:55,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-25 06:03:55,880 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-12-25 06:03:55,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:03:55,885 INFO L225 Difference]: With dead ends: 140 [2023-12-25 06:03:55,886 INFO L226 Difference]: Without dead ends: 66 [2023-12-25 06:03:55,888 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 06:03:55,891 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 06:03:55,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 81 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 06:03:55,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2023-12-25 06:03:55,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2023-12-25 06:03:55,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 47 states have (on average 1.446808510638298) internal successors, (68), 55 states have internal predecessors, (68), 12 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (11), 8 states have call predecessors, (11), 11 states have call successors, (11) [2023-12-25 06:03:55,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 91 transitions. [2023-12-25 06:03:55,923 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 91 transitions. Word has length 12 [2023-12-25 06:03:55,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:03:55,924 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 91 transitions. [2023-12-25 06:03:55,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 06:03:55,924 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 91 transitions. [2023-12-25 06:03:55,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-25 06:03:55,925 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:03:55,926 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 06:03:55,932 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 (2)] Forceful destruction successful, exit code 0 [2023-12-25 06:03:56,129 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 [2023-12-25 06:03:56,130 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:03:56,130 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:03:56,130 INFO L85 PathProgramCache]: Analyzing trace with hash -411182921, now seen corresponding path program 1 times [2023-12-25 06:03:56,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:03:56,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [327248323] [2023-12-25 06:03:56,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 06:03:56,131 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 [2023-12-25 06:03:56,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:03:56,132 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) [2023-12-25 06:03:56,157 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 [2023-12-25 06:03:56,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 06:03:56,182 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 06:03:56,183 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:03:56,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 06:03:56,199 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 06:03:56,200 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:03:56,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [327248323] [2023-12-25 06:03:56,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [327248323] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 06:03:56,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 06:03:56,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 06:03:56,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585792827] [2023-12-25 06:03:56,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 06:03:56,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 06:03:56,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:03:56,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 06:03:56,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 06:03:56,202 INFO L87 Difference]: Start difference. First operand 66 states and 91 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 06:03:56,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:03:56,230 INFO L93 Difference]: Finished difference Result 102 states and 140 transitions. [2023-12-25 06:03:56,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 06:03:56,230 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-12-25 06:03:56,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:03:56,231 INFO L225 Difference]: With dead ends: 102 [2023-12-25 06:03:56,231 INFO L226 Difference]: Without dead ends: 58 [2023-12-25 06:03:56,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 06:03:56,232 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 14 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 06:03:56,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 117 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 06:03:56,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2023-12-25 06:03:56,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2023-12-25 06:03:56,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 42 states have (on average 1.4761904761904763) internal successors, (62), 50 states have internal predecessors, (62), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 6 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-25 06:03:56,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 80 transitions. [2023-12-25 06:03:56,239 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 80 transitions. Word has length 13 [2023-12-25 06:03:56,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:03:56,239 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 80 transitions. [2023-12-25 06:03:56,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 06:03:56,239 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 80 transitions. [2023-12-25 06:03:56,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-25 06:03:56,240 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:03:56,240 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 06:03:56,246 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 [2023-12-25 06:03:56,442 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 [2023-12-25 06:03:56,443 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:03:56,444 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:03:56,444 INFO L85 PathProgramCache]: Analyzing trace with hash -664998067, now seen corresponding path program 1 times [2023-12-25 06:03:56,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:03:56,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1608572130] [2023-12-25 06:03:56,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 06:03:56,445 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 [2023-12-25 06:03:56,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:03:56,446 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) [2023-12-25 06:03:56,470 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 [2023-12-25 06:03:56,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 06:03:56,482 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 06:03:56,484 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:03:56,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 06:03:56,502 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 06:03:56,503 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:03:56,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1608572130] [2023-12-25 06:03:56,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1608572130] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 06:03:56,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 06:03:56,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 06:03:56,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989116692] [2023-12-25 06:03:56,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 06:03:56,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 06:03:56,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:03:56,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 06:03:56,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 06:03:56,504 INFO L87 Difference]: Start difference. First operand 58 states and 80 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 06:03:56,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:03:56,545 INFO L93 Difference]: Finished difference Result 170 states and 237 transitions. [2023-12-25 06:03:56,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 06:03:56,546 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-12-25 06:03:56,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:03:56,547 INFO L225 Difference]: With dead ends: 170 [2023-12-25 06:03:56,547 INFO L226 Difference]: Without dead ends: 114 [2023-12-25 06:03:56,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 06:03:56,549 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 67 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 06:03:56,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 137 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 06:03:56,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2023-12-25 06:03:56,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 111. [2023-12-25 06:03:56,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 80 states have (on average 1.4875) internal successors, (119), 95 states have internal predecessors, (119), 18 states have call successors, (18), 12 states have call predecessors, (18), 12 states have return successors, (18), 11 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-25 06:03:56,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 155 transitions. [2023-12-25 06:03:56,563 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 155 transitions. Word has length 16 [2023-12-25 06:03:56,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:03:56,564 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 155 transitions. [2023-12-25 06:03:56,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 06:03:56,564 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 155 transitions. [2023-12-25 06:03:56,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-25 06:03:56,565 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:03:56,565 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 06:03:56,583 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 [2023-12-25 06:03:56,766 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 [2023-12-25 06:03:56,767 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:03:56,767 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:03:56,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1974418760, now seen corresponding path program 1 times [2023-12-25 06:03:56,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:03:56,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1233807125] [2023-12-25 06:03:56,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 06:03:56,768 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 [2023-12-25 06:03:56,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:03:56,769 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) [2023-12-25 06:03:56,774 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 [2023-12-25 06:03:56,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 06:03:56,814 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 06:03:56,815 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:03:56,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 06:03:56,854 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 06:03:56,855 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:03:56,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1233807125] [2023-12-25 06:03:56,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1233807125] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 06:03:56,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 06:03:56,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 06:03:56,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883887703] [2023-12-25 06:03:56,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 06:03:56,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 06:03:56,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:03:56,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 06:03:56,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 06:03:56,857 INFO L87 Difference]: Start difference. First operand 111 states and 155 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 06:03:56,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:03:56,920 INFO L93 Difference]: Finished difference Result 319 states and 462 transitions. [2023-12-25 06:03:56,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 06:03:56,921 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2023-12-25 06:03:56,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:03:56,923 INFO L225 Difference]: With dead ends: 319 [2023-12-25 06:03:56,923 INFO L226 Difference]: Without dead ends: 210 [2023-12-25 06:03:56,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 06:03:56,924 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 54 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 06:03:56,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 187 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 06:03:56,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2023-12-25 06:03:56,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2023-12-25 06:03:56,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 151 states have (on average 1.4503311258278146) internal successors, (219), 178 states have internal predecessors, (219), 36 states have call successors, (36), 24 states have call predecessors, (36), 22 states have return successors, (38), 20 states have call predecessors, (38), 36 states have call successors, (38) [2023-12-25 06:03:56,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 293 transitions. [2023-12-25 06:03:56,945 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 293 transitions. Word has length 19 [2023-12-25 06:03:56,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:03:56,945 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 293 transitions. [2023-12-25 06:03:56,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 06:03:56,946 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 293 transitions. [2023-12-25 06:03:56,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-25 06:03:56,947 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:03:56,947 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 06:03:56,969 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 [2023-12-25 06:03:57,150 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 [2023-12-25 06:03:57,151 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:03:57,151 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:03:57,151 INFO L85 PathProgramCache]: Analyzing trace with hash 570910653, now seen corresponding path program 1 times [2023-12-25 06:03:57,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:03:57,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [930828306] [2023-12-25 06:03:57,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 06:03:57,152 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 [2023-12-25 06:03:57,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:03:57,153 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) [2023-12-25 06:03:57,175 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 [2023-12-25 06:03:57,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 06:03:57,188 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 06:03:57,189 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:03:57,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 06:03:57,210 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 06:03:57,210 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:03:57,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [930828306] [2023-12-25 06:03:57,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [930828306] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 06:03:57,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 06:03:57,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 06:03:57,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221393862] [2023-12-25 06:03:57,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 06:03:57,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 06:03:57,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:03:57,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 06:03:57,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 06:03:57,239 INFO L87 Difference]: Start difference. First operand 210 states and 293 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 06:03:57,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:03:57,284 INFO L93 Difference]: Finished difference Result 526 states and 748 transitions. [2023-12-25 06:03:57,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 06:03:57,285 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2023-12-25 06:03:57,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:03:57,287 INFO L225 Difference]: With dead ends: 526 [2023-12-25 06:03:57,287 INFO L226 Difference]: Without dead ends: 318 [2023-12-25 06:03:57,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 06:03:57,288 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 49 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 06:03:57,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 116 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 06:03:57,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2023-12-25 06:03:57,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 310. [2023-12-25 06:03:57,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 231 states have (on average 1.3722943722943723) internal successors, (317), 255 states have internal predecessors, (317), 41 states have call successors, (41), 39 states have call predecessors, (41), 37 states have return successors, (59), 36 states have call predecessors, (59), 41 states have call successors, (59) [2023-12-25 06:03:57,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 417 transitions. [2023-12-25 06:03:57,312 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 417 transitions. Word has length 21 [2023-12-25 06:03:57,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:03:57,313 INFO L495 AbstractCegarLoop]: Abstraction has 310 states and 417 transitions. [2023-12-25 06:03:57,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 06:03:57,313 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 417 transitions. [2023-12-25 06:03:57,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-25 06:03:57,314 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:03:57,314 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 06:03:57,323 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 [2023-12-25 06:03:57,523 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 [2023-12-25 06:03:57,524 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:03:57,524 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:03:57,524 INFO L85 PathProgramCache]: Analyzing trace with hash -461923950, now seen corresponding path program 1 times [2023-12-25 06:03:57,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:03:57,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1276532730] [2023-12-25 06:03:57,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 06:03:57,525 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 [2023-12-25 06:03:57,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:03:57,526 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) [2023-12-25 06:03:57,530 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 [2023-12-25 06:03:57,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 06:03:57,559 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 06:03:57,560 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:03:57,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 06:03:57,624 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 06:03:57,624 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:03:57,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1276532730] [2023-12-25 06:03:57,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1276532730] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 06:03:57,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 06:03:57,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 06:03:57,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166720981] [2023-12-25 06:03:57,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 06:03:57,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 06:03:57,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:03:57,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 06:03:57,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 06:03:57,626 INFO L87 Difference]: Start difference. First operand 310 states and 417 transitions. Second operand has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-25 06:03:57,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:03:57,958 INFO L93 Difference]: Finished difference Result 886 states and 1249 transitions. [2023-12-25 06:03:57,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 06:03:57,959 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2023-12-25 06:03:57,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:03:57,963 INFO L225 Difference]: With dead ends: 886 [2023-12-25 06:03:57,963 INFO L226 Difference]: Without dead ends: 710 [2023-12-25 06:03:57,964 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-12-25 06:03:57,965 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 207 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 06:03:57,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 382 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 06:03:57,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2023-12-25 06:03:58,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 682. [2023-12-25 06:03:58,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 682 states, 509 states have (on average 1.3673870333988212) internal successors, (696), 568 states have internal predecessors, (696), 86 states have call successors, (86), 74 states have call predecessors, (86), 86 states have return successors, (136), 80 states have call predecessors, (136), 86 states have call successors, (136) [2023-12-25 06:03:58,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 918 transitions. [2023-12-25 06:03:58,004 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 918 transitions. Word has length 23 [2023-12-25 06:03:58,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:03:58,005 INFO L495 AbstractCegarLoop]: Abstraction has 682 states and 918 transitions. [2023-12-25 06:03:58,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-25 06:03:58,005 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 918 transitions. [2023-12-25 06:03:58,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-12-25 06:03:58,007 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:03:58,008 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 06:03:58,012 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 [2023-12-25 06:03:58,210 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 [2023-12-25 06:03:58,210 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:03:58,210 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:03:58,211 INFO L85 PathProgramCache]: Analyzing trace with hash -542716551, now seen corresponding path program 1 times [2023-12-25 06:03:58,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:03:58,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1958097425] [2023-12-25 06:03:58,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 06:03:58,211 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 [2023-12-25 06:03:58,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:03:58,225 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) [2023-12-25 06:03:58,297 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 [2023-12-25 06:03:58,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 06:03:58,316 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 06:03:58,317 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:03:58,325 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 06:03:58,325 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 06:03:58,325 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:03:58,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1958097425] [2023-12-25 06:03:58,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1958097425] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 06:03:58,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 06:03:58,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 06:03:58,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937474851] [2023-12-25 06:03:58,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 06:03:58,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 06:03:58,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:03:58,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 06:03:58,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 06:03:58,327 INFO L87 Difference]: Start difference. First operand 682 states and 918 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-25 06:03:58,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:03:58,375 INFO L93 Difference]: Finished difference Result 800 states and 1073 transitions. [2023-12-25 06:03:58,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 06:03:58,375 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 49 [2023-12-25 06:03:58,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:03:58,377 INFO L225 Difference]: With dead ends: 800 [2023-12-25 06:03:58,377 INFO L226 Difference]: Without dead ends: 389 [2023-12-25 06:03:58,378 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 06:03:58,379 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 32 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 06:03:58,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 157 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 06:03:58,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2023-12-25 06:03:58,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 383. [2023-12-25 06:03:58,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 288 states have (on average 1.34375) internal successors, (387), 320 states have internal predecessors, (387), 47 states have call successors, (47), 41 states have call predecessors, (47), 47 states have return successors, (72), 45 states have call predecessors, (72), 47 states have call successors, (72) [2023-12-25 06:03:58,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 506 transitions. [2023-12-25 06:03:58,402 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 506 transitions. Word has length 49 [2023-12-25 06:03:58,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:03:58,402 INFO L495 AbstractCegarLoop]: Abstraction has 383 states and 506 transitions. [2023-12-25 06:03:58,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-25 06:03:58,403 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 506 transitions. [2023-12-25 06:03:58,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-25 06:03:58,404 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:03:58,404 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-25 06:03:58,446 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 [2023-12-25 06:03:58,605 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 [2023-12-25 06:03:58,606 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:03:58,606 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:03:58,606 INFO L85 PathProgramCache]: Analyzing trace with hash 106115734, now seen corresponding path program 1 times [2023-12-25 06:03:58,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:03:58,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1999267672] [2023-12-25 06:03:58,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 06:03:58,608 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 [2023-12-25 06:03:58,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:03:58,609 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) [2023-12-25 06:03:58,611 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 [2023-12-25 06:03:58,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 06:03:58,655 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 06:03:58,657 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:03:58,669 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-25 06:03:58,670 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 06:03:58,670 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:03:58,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1999267672] [2023-12-25 06:03:58,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1999267672] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 06:03:58,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 06:03:58,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 06:03:58,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184865954] [2023-12-25 06:03:58,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 06:03:58,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 06:03:58,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:03:58,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 06:03:58,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 06:03:58,671 INFO L87 Difference]: Start difference. First operand 383 states and 506 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-25 06:03:58,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:03:58,726 INFO L93 Difference]: Finished difference Result 778 states and 1070 transitions. [2023-12-25 06:03:58,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 06:03:58,727 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 54 [2023-12-25 06:03:58,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:03:58,729 INFO L225 Difference]: With dead ends: 778 [2023-12-25 06:03:58,729 INFO L226 Difference]: Without dead ends: 397 [2023-12-25 06:03:58,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 06:03:58,730 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 10 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 06:03:58,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 194 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 06:03:58,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2023-12-25 06:03:58,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 387. [2023-12-25 06:03:58,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 291 states have (on average 1.3333333333333333) internal successors, (388), 323 states have internal predecessors, (388), 47 states have call successors, (47), 41 states have call predecessors, (47), 48 states have return successors, (73), 45 states have call predecessors, (73), 47 states have call successors, (73) [2023-12-25 06:03:58,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 508 transitions. [2023-12-25 06:03:58,764 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 508 transitions. Word has length 54 [2023-12-25 06:03:58,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:03:58,764 INFO L495 AbstractCegarLoop]: Abstraction has 387 states and 508 transitions. [2023-12-25 06:03:58,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-25 06:03:58,764 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 508 transitions. [2023-12-25 06:03:58,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-25 06:03:58,765 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:03:58,765 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-25 06:03:58,768 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 (9)] Forceful destruction successful, exit code 0 [2023-12-25 06:03:58,982 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 [2023-12-25 06:03:58,983 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:03:58,983 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:03:58,983 INFO L85 PathProgramCache]: Analyzing trace with hash 500482520, now seen corresponding path program 1 times [2023-12-25 06:03:58,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:03:58,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1802784199] [2023-12-25 06:03:58,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 06:03:58,984 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 [2023-12-25 06:03:58,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:03:58,985 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) [2023-12-25 06:03:58,986 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 [2023-12-25 06:03:59,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 06:03:59,051 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 06:03:59,059 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:03:59,088 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-25 06:03:59,088 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 06:03:59,088 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:03:59,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1802784199] [2023-12-25 06:03:59,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1802784199] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 06:03:59,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 06:03:59,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 06:03:59,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220214725] [2023-12-25 06:03:59,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 06:03:59,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 06:03:59,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:03:59,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 06:03:59,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 06:03:59,091 INFO L87 Difference]: Start difference. First operand 387 states and 508 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-25 06:03:59,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:03:59,147 INFO L93 Difference]: Finished difference Result 745 states and 1014 transitions. [2023-12-25 06:03:59,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 06:03:59,160 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 54 [2023-12-25 06:03:59,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:03:59,162 INFO L225 Difference]: With dead ends: 745 [2023-12-25 06:03:59,162 INFO L226 Difference]: Without dead ends: 360 [2023-12-25 06:03:59,163 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 06:03:59,165 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 2 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 06:03:59,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 196 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 06:03:59,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2023-12-25 06:03:59,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 356. [2023-12-25 06:03:59,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 267 states have (on average 1.3220973782771535) internal successors, (353), 295 states have internal predecessors, (353), 45 states have call successors, (45), 39 states have call predecessors, (45), 43 states have return successors, (61), 41 states have call predecessors, (61), 45 states have call successors, (61) [2023-12-25 06:03:59,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 459 transitions. [2023-12-25 06:03:59,200 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 459 transitions. Word has length 54 [2023-12-25 06:03:59,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:03:59,200 INFO L495 AbstractCegarLoop]: Abstraction has 356 states and 459 transitions. [2023-12-25 06:03:59,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-25 06:03:59,201 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 459 transitions. [2023-12-25 06:03:59,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-25 06:03:59,201 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:03:59,202 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 06:03:59,208 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 (10)] Forceful destruction successful, exit code 0 [2023-12-25 06:03:59,405 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 [2023-12-25 06:03:59,405 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:03:59,405 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:03:59,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1678235322, now seen corresponding path program 1 times [2023-12-25 06:03:59,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:03:59,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1974017734] [2023-12-25 06:03:59,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 06:03:59,406 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 [2023-12-25 06:03:59,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:03:59,407 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) [2023-12-25 06:03:59,409 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 [2023-12-25 06:03:59,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 06:03:59,489 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-25 06:03:59,491 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:03:59,622 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-25 06:03:59,622 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 06:03:59,851 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-25 06:03:59,851 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:03:59,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1974017734] [2023-12-25 06:03:59,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1974017734] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 06:03:59,851 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 06:03:59,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 12 [2023-12-25 06:03:59,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056737204] [2023-12-25 06:03:59,851 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 06:03:59,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-25 06:03:59,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:03:59,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-25 06:03:59,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-12-25 06:03:59,857 INFO L87 Difference]: Start difference. First operand 356 states and 459 transitions. Second operand has 12 states, 12 states have (on average 6.0) internal successors, (72), 11 states have internal predecessors, (72), 7 states have call successors, (10), 7 states have call predecessors, (10), 6 states have return successors, (8), 5 states have call predecessors, (8), 7 states have call successors, (8) [2023-12-25 06:04:00,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:04:00,492 INFO L93 Difference]: Finished difference Result 1044 states and 1420 transitions. [2023-12-25 06:04:00,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-25 06:04:00,492 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.0) internal successors, (72), 11 states have internal predecessors, (72), 7 states have call successors, (10), 7 states have call predecessors, (10), 6 states have return successors, (8), 5 states have call predecessors, (8), 7 states have call successors, (8) Word has length 58 [2023-12-25 06:04:00,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:04:00,495 INFO L225 Difference]: With dead ends: 1044 [2023-12-25 06:04:00,495 INFO L226 Difference]: Without dead ends: 724 [2023-12-25 06:04:00,496 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=148, Invalid=452, Unknown=0, NotChecked=0, Total=600 [2023-12-25 06:04:00,497 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 493 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 06:04:00,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [512 Valid, 540 Invalid, 835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 651 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 06:04:00,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2023-12-25 06:04:00,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 619. [2023-12-25 06:04:00,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 619 states, 461 states have (on average 1.3449023861171367) internal successors, (620), 507 states have internal predecessors, (620), 79 states have call successors, (79), 68 states have call predecessors, (79), 78 states have return successors, (152), 73 states have call predecessors, (152), 79 states have call successors, (152) [2023-12-25 06:04:00,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 851 transitions. [2023-12-25 06:04:00,531 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 851 transitions. Word has length 58 [2023-12-25 06:04:00,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:04:00,532 INFO L495 AbstractCegarLoop]: Abstraction has 619 states and 851 transitions. [2023-12-25 06:04:00,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.0) internal successors, (72), 11 states have internal predecessors, (72), 7 states have call successors, (10), 7 states have call predecessors, (10), 6 states have return successors, (8), 5 states have call predecessors, (8), 7 states have call successors, (8) [2023-12-25 06:04:00,532 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 851 transitions. [2023-12-25 06:04:00,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-25 06:04:00,533 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:04:00,533 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 06:04:00,548 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 [2023-12-25 06:04:00,736 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 [2023-12-25 06:04:00,736 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:04:00,736 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:04:00,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1915667396, now seen corresponding path program 1 times [2023-12-25 06:04:00,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:04:00,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1578811555] [2023-12-25 06:04:00,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 06:04:00,737 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 [2023-12-25 06:04:00,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:04:00,738 INFO L229 MonitoredProcess]: Starting monitored process 12 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) [2023-12-25 06:04:00,762 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 (12)] Waiting until timeout for monitored process [2023-12-25 06:04:00,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 06:04:00,782 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-25 06:04:00,783 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:04:00,860 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-25 06:04:00,861 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 06:04:01,040 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-25 06:04:01,041 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:04:01,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1578811555] [2023-12-25 06:04:01,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1578811555] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 06:04:01,041 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 06:04:01,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 13 [2023-12-25 06:04:01,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402997093] [2023-12-25 06:04:01,041 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 06:04:01,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-25 06:04:01,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:04:01,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-25 06:04:01,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2023-12-25 06:04:01,042 INFO L87 Difference]: Start difference. First operand 619 states and 851 transitions. Second operand has 13 states, 13 states have (on average 6.0) internal successors, (78), 12 states have internal predecessors, (78), 6 states have call successors, (10), 7 states have call predecessors, (10), 6 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2023-12-25 06:04:01,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:04:01,710 INFO L93 Difference]: Finished difference Result 1288 states and 1812 transitions. [2023-12-25 06:04:01,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-12-25 06:04:01,711 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.0) internal successors, (78), 12 states have internal predecessors, (78), 6 states have call successors, (10), 7 states have call predecessors, (10), 6 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) Word has length 58 [2023-12-25 06:04:01,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:04:01,714 INFO L225 Difference]: With dead ends: 1288 [2023-12-25 06:04:01,714 INFO L226 Difference]: Without dead ends: 682 [2023-12-25 06:04:01,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=220, Invalid=710, Unknown=0, NotChecked=0, Total=930 [2023-12-25 06:04:01,716 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 458 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 475 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 06:04:01,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [475 Valid, 501 Invalid, 838 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [183 Valid, 655 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 06:04:01,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2023-12-25 06:04:01,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 608. [2023-12-25 06:04:01,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 608 states, 450 states have (on average 1.3) internal successors, (585), 496 states have internal predecessors, (585), 78 states have call successors, (78), 68 states have call predecessors, (78), 79 states have return successors, (152), 74 states have call predecessors, (152), 78 states have call successors, (152) [2023-12-25 06:04:01,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 815 transitions. [2023-12-25 06:04:01,747 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 815 transitions. Word has length 58 [2023-12-25 06:04:01,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:04:01,748 INFO L495 AbstractCegarLoop]: Abstraction has 608 states and 815 transitions. [2023-12-25 06:04:01,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.0) internal successors, (78), 12 states have internal predecessors, (78), 6 states have call successors, (10), 7 states have call predecessors, (10), 6 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2023-12-25 06:04:01,748 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 815 transitions. [2023-12-25 06:04:01,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-25 06:04:01,749 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:04:01,749 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 06:04:01,752 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 (12)] Forceful destruction successful, exit code 0 [2023-12-25 06:04:01,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /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 [2023-12-25 06:04:01,952 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:04:01,953 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:04:01,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1399493465, now seen corresponding path program 1 times [2023-12-25 06:04:01,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:04:01,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2064722767] [2023-12-25 06:04:01,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 06:04:01,953 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 [2023-12-25 06:04:01,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:04:01,954 INFO L229 MonitoredProcess]: Starting monitored process 13 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) [2023-12-25 06:04:01,979 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 (13)] Waiting until timeout for monitored process [2023-12-25 06:04:02,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 06:04:02,004 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 06:04:02,006 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:04:02,017 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-25 06:04:02,018 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 06:04:02,018 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:04:02,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2064722767] [2023-12-25 06:04:02,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2064722767] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 06:04:02,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 06:04:02,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 06:04:02,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279169631] [2023-12-25 06:04:02,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 06:04:02,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 06:04:02,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:04:02,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 06:04:02,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 06:04:02,019 INFO L87 Difference]: Start difference. First operand 608 states and 815 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 06:04:02,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:04:02,051 INFO L93 Difference]: Finished difference Result 731 states and 961 transitions. [2023-12-25 06:04:02,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 06:04:02,052 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 87 [2023-12-25 06:04:02,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:04:02,052 INFO L225 Difference]: With dead ends: 731 [2023-12-25 06:04:02,052 INFO L226 Difference]: Without dead ends: 0 [2023-12-25 06:04:02,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 06:04:02,054 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 1 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 06:04:02,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 145 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 06:04:02,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-25 06:04:02,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-25 06:04:02,054 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) [2023-12-25 06:04:02,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-25 06:04:02,055 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 87 [2023-12-25 06:04:02,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:04:02,055 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-25 06:04:02,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 06:04:02,055 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-25 06:04:02,055 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-25 06:04:02,057 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-25 06:04:02,061 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 (13)] Ended with exit code 0 [2023-12-25 06:04:02,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /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 [2023-12-25 06:04:02,262 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-25 06:04:02,976 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 309 316) no Hoare annotation was computed. [2023-12-25 06:04:02,976 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 309 316) the Hoare annotation is: true [2023-12-25 06:04:02,976 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 224 230) no Hoare annotation was computed. [2023-12-25 06:04:02,976 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 224 230) the Hoare annotation is: true [2023-12-25 06:04:02,976 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 549 560) the Hoare annotation is: true [2023-12-25 06:04:02,977 INFO L899 garLoopResultBuilder]: For program point L553-1(lines 549 560) no Hoare annotation was computed. [2023-12-25 06:04:02,977 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 549 560) no Hoare annotation was computed. [2023-12-25 06:04:02,977 INFO L899 garLoopResultBuilder]: For program point L449(line 449) no Hoare annotation was computed. [2023-12-25 06:04:02,977 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 428 457) no Hoare annotation was computed. [2023-12-25 06:04:02,977 INFO L899 garLoopResultBuilder]: For program point L442(lines 442 446) no Hoare annotation was computed. [2023-12-25 06:04:02,977 INFO L902 garLoopResultBuilder]: At program point L442-1(lines 442 446) the Hoare annotation is: true [2023-12-25 06:04:02,977 INFO L902 garLoopResultBuilder]: At program point L438-2(lines 438 452) the Hoare annotation is: true [2023-12-25 06:04:02,977 INFO L902 garLoopResultBuilder]: At program point L434(line 434) the Hoare annotation is: true [2023-12-25 06:04:02,977 INFO L899 garLoopResultBuilder]: For program point L434-1(line 434) no Hoare annotation was computed. [2023-12-25 06:04:02,977 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 428 457) the Hoare annotation is: true [2023-12-25 06:04:02,977 INFO L899 garLoopResultBuilder]: For program point L453(lines 428 457) no Hoare annotation was computed. [2023-12-25 06:04:02,977 INFO L899 garLoopResultBuilder]: For program point L630(line 630) no Hoare annotation was computed. [2023-12-25 06:04:02,977 INFO L895 garLoopResultBuilder]: At program point L272(line 272) the Hoare annotation is: (let ((.cse2 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (.cse0 (not (= ~systemActive~0 (_ bv1 32)))) (.cse4 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse1 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse3 (not (= ~systemActive~0 (_ bv0 32))))) (and (or .cse0 .cse1 .cse2) (or .cse1 .cse2 .cse3) (or .cse4 .cse0) (or .cse4 .cse1 .cse3))) [2023-12-25 06:04:02,978 INFO L895 garLoopResultBuilder]: At program point L268(line 268) the Hoare annotation is: (let ((.cse1 (not (= ~systemActive~0 (_ bv1 32)))) (.cse3 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (.cse0 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse2 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse4 (not (= ~systemActive~0 (_ bv0 32))))) (and (or .cse0 .cse1 (and (= ~waterLevel~0 (_ bv1 32)) (= |timeShift_processEnvironment_~tmp~3#1| (_ bv1 32)))) (or .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse2) (or .cse2 .cse3 .cse4) (or .cse0 .cse2 .cse4))) [2023-12-25 06:04:02,978 INFO L899 garLoopResultBuilder]: For program point L103(lines 103 109) no Hoare annotation was computed. [2023-12-25 06:04:02,978 INFO L899 garLoopResultBuilder]: For program point L99(lines 99 112) no Hoare annotation was computed. [2023-12-25 06:04:02,978 INFO L899 garLoopResultBuilder]: For program point L99-1(lines 91 115) no Hoare annotation was computed. [2023-12-25 06:04:02,978 INFO L895 garLoopResultBuilder]: At program point L277(line 277) the Hoare annotation is: (let ((.cse7 (= (_ bv2 32) |old(~waterLevel~0)|)) (.cse8 (= ~systemActive~0 (_ bv1 32))) (.cse9 (= (_ bv0 32) ~pumpRunning~0))) (let ((.cse1 (and (= ~waterLevel~0 (_ bv1 32)) .cse9)) (.cse5 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (.cse2 (not .cse8)) (.cse3 (and (= ~waterLevel~0 (_ bv2 32)) .cse7 .cse8 .cse9)) (.cse0 (not .cse7)) (.cse4 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse6 (not (= ~systemActive~0 (_ bv0 32))))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse2 .cse4 .cse5) (or .cse4 .cse5 .cse6) (or .cse0 .cse2 .cse4 .cse3) (or .cse0 .cse4 .cse6)))) [2023-12-25 06:04:02,978 INFO L899 garLoopResultBuilder]: For program point L277-1(lines 258 282) no Hoare annotation was computed. [2023-12-25 06:04:02,978 INFO L899 garLoopResultBuilder]: For program point L211-1(lines 211 217) no Hoare annotation was computed. [2023-12-25 06:04:02,978 INFO L899 garLoopResultBuilder]: For program point L529(lines 529 533) no Hoare annotation was computed. [2023-12-25 06:04:02,978 INFO L899 garLoopResultBuilder]: For program point L401(lines 401 405) no Hoare annotation was computed. [2023-12-25 06:04:02,978 INFO L899 garLoopResultBuilder]: For program point L529-2(lines 525 536) no Hoare annotation was computed. [2023-12-25 06:04:02,978 INFO L899 garLoopResultBuilder]: For program point L401-2(lines 401 405) no Hoare annotation was computed. [2023-12-25 06:04:02,978 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 200 223) the Hoare annotation is: (let ((.cse7 (= (_ bv0 32) ~pumpRunning~0))) (let ((.cse4 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse6 (= ~waterLevel~0 (_ bv2 32))) (.cse1 (not (= ~systemActive~0 (_ bv1 32)))) (.cse0 (and (= ~waterLevel~0 (_ bv1 32)) .cse7)) (.cse2 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse3 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (.cse5 (not (= ~systemActive~0 (_ bv0 32))))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse2 .cse5 (and .cse6 .cse7)) (or .cse4 .cse1 .cse2 .cse7) (or .cse4 .cse6 .cse1) (or .cse0 .cse2 .cse3 .cse5)))) [2023-12-25 06:04:02,979 INFO L899 garLoopResultBuilder]: For program point L204-1(lines 203 222) no Hoare annotation was computed. [2023-12-25 06:04:02,979 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 200 223) no Hoare annotation was computed. [2023-12-25 06:04:02,979 INFO L899 garLoopResultBuilder]: For program point L266(lines 266 274) no Hoare annotation was computed. [2023-12-25 06:04:02,979 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 630) no Hoare annotation was computed. [2023-12-25 06:04:02,979 INFO L899 garLoopResultBuilder]: For program point L262(lines 262 279) no Hoare annotation was computed. [2023-12-25 06:04:02,979 INFO L899 garLoopResultBuilder]: For program point L415(lines 415 421) no Hoare annotation was computed. [2023-12-25 06:04:02,979 INFO L899 garLoopResultBuilder]: For program point L415-1(lines 415 421) no Hoare annotation was computed. [2023-12-25 06:04:02,979 INFO L895 garLoopResultBuilder]: At program point L180(lines 131 181) the Hoare annotation is: false [2023-12-25 06:04:02,979 INFO L899 garLoopResultBuilder]: For program point L168(lines 168 174) no Hoare annotation was computed. [2023-12-25 06:04:02,979 INFO L895 garLoopResultBuilder]: At program point L168-2(lines 162 175) the Hoare annotation is: (let ((.cse5 (= ~systemActive~0 (_ bv1 32))) (.cse1 (= ~waterLevel~0 (_ bv1 32))) (.cse4 (= ~waterLevel~0 (_ bv2 32))) (.cse0 (= ~systemActive~0 (_ bv0 32))) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| (_ bv0 32))) (.cse3 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse2) (and .cse5 .cse1 .cse2 .cse3) (and .cse4 .cse0 .cse2 .cse3))) [2023-12-25 06:04:02,979 INFO L899 garLoopResultBuilder]: For program point L152(lines 152 158) no Hoare annotation was computed. [2023-12-25 06:04:02,979 INFO L899 garLoopResultBuilder]: For program point L152-1(lines 152 158) no Hoare annotation was computed. [2023-12-25 06:04:02,979 INFO L895 garLoopResultBuilder]: At program point L177(lines 132 179) the Hoare annotation is: (let ((.cse5 (= ~systemActive~0 (_ bv1 32))) (.cse1 (= ~waterLevel~0 (_ bv1 32))) (.cse4 (= ~waterLevel~0 (_ bv2 32))) (.cse0 (= ~systemActive~0 (_ bv0 32))) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| (_ bv0 32))) (.cse3 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse2) (and .cse5 .cse1 .cse2 .cse3) (and .cse4 .cse0 .cse2 .cse3))) [2023-12-25 06:04:02,980 INFO L895 garLoopResultBuilder]: At program point L144(line 144) the Hoare annotation is: (let ((.cse5 (= ~systemActive~0 (_ bv1 32))) (.cse1 (= ~waterLevel~0 (_ bv1 32))) (.cse4 (= ~waterLevel~0 (_ bv2 32))) (.cse0 (= ~systemActive~0 (_ bv0 32))) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| (_ bv0 32))) (.cse3 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse2) (and .cse5 .cse1 .cse2 .cse3) (and .cse4 .cse0 .cse2 .cse3))) [2023-12-25 06:04:02,980 INFO L895 garLoopResultBuilder]: At program point L417(line 417) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| (_ bv0 32)))) (or (and (= ~waterLevel~0 (_ bv2 32)) .cse0) (and (= ~waterLevel~0 (_ bv1 32)) .cse0))) [2023-12-25 06:04:02,980 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-25 06:04:02,980 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-25 06:04:02,980 INFO L899 garLoopResultBuilder]: For program point L133(lines 132 179) no Hoare annotation was computed. [2023-12-25 06:04:02,980 INFO L899 garLoopResultBuilder]: For program point L162(lines 162 175) no Hoare annotation was computed. [2023-12-25 06:04:02,980 INFO L899 garLoopResultBuilder]: For program point L509(lines 509 516) no Hoare annotation was computed. [2023-12-25 06:04:02,980 INFO L899 garLoopResultBuilder]: For program point L509-2(lines 509 516) no Hoare annotation was computed. [2023-12-25 06:04:02,980 INFO L895 garLoopResultBuilder]: At program point L154(line 154) the Hoare annotation is: (let ((.cse5 (= ~systemActive~0 (_ bv1 32))) (.cse1 (= ~waterLevel~0 (_ bv1 32))) (.cse4 (= ~waterLevel~0 (_ bv2 32))) (.cse0 (= ~systemActive~0 (_ bv0 32))) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| (_ bv0 32))) (.cse3 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse2) (and .cse5 .cse1 .cse2 .cse3) (and .cse4 .cse0 .cse2 .cse3))) [2023-12-25 06:04:02,980 INFO L899 garLoopResultBuilder]: For program point L183(lines 122 187) no Hoare annotation was computed. [2023-12-25 06:04:02,980 INFO L899 garLoopResultBuilder]: For program point L142(lines 142 148) no Hoare annotation was computed. [2023-12-25 06:04:02,980 INFO L899 garLoopResultBuilder]: For program point L142-1(lines 142 148) no Hoare annotation was computed. [2023-12-25 06:04:02,980 INFO L899 garLoopResultBuilder]: For program point L382(lines 382 386) no Hoare annotation was computed. [2023-12-25 06:04:02,980 INFO L899 garLoopResultBuilder]: For program point L382-2(lines 382 386) no Hoare annotation was computed. [2023-12-25 06:04:02,981 INFO L895 garLoopResultBuilder]: At program point L246(line 246) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 (_ bv1 32)))) (.cse3 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse1 (= |processEnvironment__wrappee__highWaterSensor_~tmp~2#1| (_ bv0 32))) (.cse2 (= (_ bv0 32) ~pumpRunning~0))) (and (or .cse0 (and .cse1 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| (_ bv1 32)) .cse2) .cse3 (not (= ~waterLevel~0 (_ bv1 32)))) (or .cse0 (not (= ~waterLevel~0 (_ bv2 32))) .cse3 (and .cse1 .cse2)))) [2023-12-25 06:04:02,981 INFO L899 garLoopResultBuilder]: For program point L240(lines 240 248) no Hoare annotation was computed. [2023-12-25 06:04:02,981 INFO L899 garLoopResultBuilder]: For program point L236(lines 236 253) no Hoare annotation was computed. [2023-12-25 06:04:02,981 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 232 256) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 (_ bv1 32)))) (.cse1 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse2 (= (_ bv0 32) ~pumpRunning~0))) (and (or .cse0 (not (= ~waterLevel~0 (_ bv2 32))) .cse1 .cse2) (or .cse0 .cse1 (not (= ~waterLevel~0 (_ bv1 32))) .cse2))) [2023-12-25 06:04:02,981 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDry_returnLabel#1(lines 602 615) no Hoare annotation was computed. [2023-12-25 06:04:02,981 INFO L899 garLoopResultBuilder]: For program point L606(lines 606 612) no Hoare annotation was computed. [2023-12-25 06:04:02,981 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 232 256) no Hoare annotation was computed. [2023-12-25 06:04:02,981 INFO L895 garLoopResultBuilder]: At program point L251(line 251) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 (_ bv1 32)))) (.cse1 (not (= |old(~pumpRunning~0)| (_ bv0 32))))) (and (or .cse0 .cse1 (not (= ~waterLevel~0 (_ bv1 32)))) (or .cse0 (not (= ~waterLevel~0 (_ bv2 32))) .cse1))) [2023-12-25 06:04:02,981 INFO L899 garLoopResultBuilder]: For program point L251-1(lines 232 256) no Hoare annotation was computed. [2023-12-25 06:04:02,981 INFO L899 garLoopResultBuilder]: For program point L299(lines 299 305) no Hoare annotation was computed. [2023-12-25 06:04:02,981 INFO L899 garLoopResultBuilder]: For program point L299-2(lines 292 308) no Hoare annotation was computed. [2023-12-25 06:04:02,981 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 537 548) no Hoare annotation was computed. [2023-12-25 06:04:02,981 INFO L899 garLoopResultBuilder]: For program point L541-1(lines 537 548) no Hoare annotation was computed. [2023-12-25 06:04:02,982 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 537 548) the Hoare annotation is: (let ((.cse2 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (.cse3 (= ~waterLevel~0 (_ bv1 32))) (.cse1 (not (= ~systemActive~0 (_ bv1 32)))) (.cse5 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse6 (= ~waterLevel~0 (_ bv2 32))) (.cse0 (not (= (_ bv0 32) ~pumpRunning~0))) (.cse4 (not (= ~systemActive~0 (_ bv0 32))))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse2 .cse3 .cse4) (or .cse5 .cse6 .cse1) (or .cse5 .cse6 .cse0 .cse4))) [2023-12-25 06:04:02,988 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 06:04:02,989 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-25 06:04:02,999 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.12 06:04:02 BoogieIcfgContainer [2023-12-25 06:04:03,000 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-25 06:04:03,001 INFO L158 Benchmark]: Toolchain (without parser) took 8550.40ms. Allocated memory was 383.8MB in the beginning and 467.7MB in the end (delta: 83.9MB). Free memory was 331.0MB in the beginning and 207.0MB in the end (delta: 123.9MB). Peak memory consumption was 208.1MB. Max. memory is 8.0GB. [2023-12-25 06:04:03,001 INFO L158 Benchmark]: CDTParser took 0.63ms. Allocated memory is still 191.9MB. Free memory is still 140.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-25 06:04:03,001 INFO L158 Benchmark]: CACSL2BoogieTranslator took 468.60ms. Allocated memory is still 383.8MB. Free memory was 330.7MB in the beginning and 304.4MB in the end (delta: 26.2MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. [2023-12-25 06:04:03,001 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.44ms. Allocated memory is still 383.8MB. Free memory was 304.4MB in the beginning and 302.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-25 06:04:03,002 INFO L158 Benchmark]: Boogie Preprocessor took 66.04ms. Allocated memory is still 383.8MB. Free memory was 302.1MB in the beginning and 299.5MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-25 06:04:03,002 INFO L158 Benchmark]: RCFGBuilder took 602.57ms. Allocated memory is still 383.8MB. Free memory was 299.2MB in the beginning and 334.3MB in the end (delta: -35.1MB). Peak memory consumption was 19.5MB. Max. memory is 8.0GB. [2023-12-25 06:04:03,003 INFO L158 Benchmark]: TraceAbstraction took 7349.46ms. Allocated memory was 383.8MB in the beginning and 467.7MB in the end (delta: 83.9MB). Free memory was 333.3MB in the beginning and 207.0MB in the end (delta: 126.3MB). Peak memory consumption was 209.7MB. Max. memory is 8.0GB. [2023-12-25 06:04:03,003 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.63ms. Allocated memory is still 191.9MB. Free memory is still 140.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 468.60ms. Allocated memory is still 383.8MB. Free memory was 330.7MB in the beginning and 304.4MB in the end (delta: 26.2MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 57.44ms. Allocated memory is still 383.8MB. Free memory was 304.4MB in the beginning and 302.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 66.04ms. Allocated memory is still 383.8MB. Free memory was 302.1MB in the beginning and 299.5MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 602.57ms. Allocated memory is still 383.8MB. Free memory was 299.2MB in the beginning and 334.3MB in the end (delta: -35.1MB). Peak memory consumption was 19.5MB. Max. memory is 8.0GB. * TraceAbstraction took 7349.46ms. Allocated memory was 383.8MB in the beginning and 467.7MB in the end (delta: 83.9MB). Free memory was 333.3MB in the beginning and 207.0MB in the end (delta: 126.3MB). Peak memory consumption was 209.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [87] - GenericResultAtLocation [Line: 116]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [116] - GenericResultAtLocation [Line: 188]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [188] - GenericResultAtLocation [Line: 426]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [426] - GenericResultAtLocation [Line: 522]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [522] - GenericResultAtLocation [Line: 625]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [625] - GenericResultAtLocation [Line: 634]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [634] * 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: 630]: 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 8 procedures, 71 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.3s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1442 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1387 mSDsluCounter, 2753 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1848 mSDsCounter, 422 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2049 IncrementalHoareTripleChecker+Invalid, 2471 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 422 mSolverCounterUnsat, 905 mSDtfsCounter, 2049 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 613 GetRequests, 538 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 242 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=682occurred in iteration=6, InterpolantAutomatonStates: 89, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 12 MinimizatonAttempts, 238 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 21 LocationsWithAnnotation, 924 PreInvPairs, 957 NumberOfFragments, 697 HoareAnnotationTreeSize, 924 FormulaSimplifications, 26 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 21 FormulaSimplificationsInter, 416 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 464 NumberOfCodeBlocks, 464 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 566 ConstructedInterpolants, 0 QuantifiedInterpolants, 1209 SizeOfPredicates, 17 NumberOfNonLiveVariables, 1249 ConjunctsInSsa, 62 ConjunctsInUnsatCore, 14 InterpolantComputations, 10 PerfectInterpolantSequences, 121/149 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: 131]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 132]: Loop Invariant Derived loop invariant: (((((((systemActive == 0) && (waterLevel == 1)) && (splverifierCounter == 0)) && (0 == pumpRunning)) || (((waterLevel == 2) && (systemActive == 1)) && (splverifierCounter == 0))) || ((((systemActive == 1) && (waterLevel == 1)) && (splverifierCounter == 0)) && (0 == pumpRunning))) || ((((waterLevel == 2) && (systemActive == 0)) && (splverifierCounter == 0)) && (0 == pumpRunning))) - InvariantResult [Line: 438]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-12-25 06:04:03,024 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...