/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product53.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 23:38:22,708 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 23:38:22,773 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-19 23:38:22,776 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 23:38:22,776 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 23:38:22,801 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 23:38:22,802 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 23:38:22,802 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 23:38:22,803 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 23:38:22,806 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 23:38:22,806 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 23:38:22,807 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 23:38:22,807 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 23:38:22,808 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 23:38:22,808 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 23:38:22,809 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 23:38:22,809 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 23:38:22,809 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 23:38:22,809 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 23:38:22,809 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 23:38:22,809 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 23:38:22,810 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 23:38:22,810 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 23:38:22,810 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 23:38:22,810 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 23:38:22,810 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 23:38:22,810 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 23:38:22,810 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 23:38:22,811 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 23:38:22,811 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 23:38:22,812 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 23:38:22,812 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 23:38:22,812 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 23:38:22,812 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 23:38:22,812 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 23:38:22,812 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 23:38:22,813 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 23:38:22,813 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 23:38:22,813 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 23:38:22,813 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 23:38:22,813 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 23:38:22,813 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 23:38:22,813 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 23:38:22,813 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 23:38:22,991 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 23:38:23,010 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 23:38:23,012 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 23:38:23,012 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 23:38:23,013 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 23:38:23,013 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product53.cil.c [2023-12-19 23:38:24,332 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 23:38:24,531 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 23:38:24,532 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product53.cil.c [2023-12-19 23:38:24,542 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3ac1d21c/8474f6d6729b4636afd69cdd4408ac58/FLAGe8d305913 [2023-12-19 23:38:24,553 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3ac1d21c/8474f6d6729b4636afd69cdd4408ac58 [2023-12-19 23:38:24,555 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 23:38:24,556 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 23:38:24,557 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 23:38:24,557 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 23:38:24,560 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 23:38:24,560 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 11:38:24" (1/1) ... [2023-12-19 23:38:24,561 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70edfd0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:24, skipping insertion in model container [2023-12-19 23:38:24,561 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 11:38:24" (1/1) ... [2023-12-19 23:38:24,604 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 23:38:24,704 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product53.cil.c[1605,1618] [2023-12-19 23:38:24,802 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 23:38:24,810 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 23:38:24,816 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] [2023-12-19 23:38:24,817 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [58] [2023-12-19 23:38:24,817 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [127] [2023-12-19 23:38:24,817 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [493] [2023-12-19 23:38:24,817 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [726] [2023-12-19 23:38:24,817 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [765] [2023-12-19 23:38:24,818 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [865] [2023-12-19 23:38:24,818 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [969] [2023-12-19 23:38:24,820 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product53.cil.c[1605,1618] [2023-12-19 23:38:24,850 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 23:38:24,865 INFO L206 MainTranslator]: Completed translation [2023-12-19 23:38:24,866 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:24 WrapperNode [2023-12-19 23:38:24,866 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 23:38:24,867 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 23:38:24,867 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 23:38:24,867 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 23:38:24,872 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:24" (1/1) ... [2023-12-19 23:38:24,892 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:24" (1/1) ... [2023-12-19 23:38:24,914 INFO L138 Inliner]: procedures = 57, calls = 103, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 224 [2023-12-19 23:38:24,914 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 23:38:24,915 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 23:38:24,915 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 23:38:24,915 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 23:38:24,922 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:24" (1/1) ... [2023-12-19 23:38:24,923 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:24" (1/1) ... [2023-12-19 23:38:24,931 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:24" (1/1) ... [2023-12-19 23:38:24,941 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-19 23:38:24,941 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:24" (1/1) ... [2023-12-19 23:38:24,941 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:24" (1/1) ... [2023-12-19 23:38:24,944 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:24" (1/1) ... [2023-12-19 23:38:24,946 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:24" (1/1) ... [2023-12-19 23:38:24,947 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:24" (1/1) ... [2023-12-19 23:38:24,948 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:24" (1/1) ... [2023-12-19 23:38:24,949 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 23:38:24,950 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 23:38:24,950 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 23:38:24,950 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 23:38:24,951 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:24" (1/1) ... [2023-12-19 23:38:24,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 23:38:24,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:38:24,984 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-19 23:38:25,005 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-19 23:38:25,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 23:38:25,023 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-12-19 23:38:25,023 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-12-19 23:38:25,023 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-12-19 23:38:25,023 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-12-19 23:38:25,023 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-19 23:38:25,024 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-19 23:38:25,024 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-19 23:38:25,024 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-19 23:38:25,024 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-12-19 23:38:25,024 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-12-19 23:38:25,024 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-12-19 23:38:25,024 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-12-19 23:38:25,025 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2023-12-19 23:38:25,025 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2023-12-19 23:38:25,025 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-12-19 23:38:25,025 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-12-19 23:38:25,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 23:38:25,025 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-12-19 23:38:25,026 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-12-19 23:38:25,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 23:38:25,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 23:38:25,101 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 23:38:25,103 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 23:38:25,360 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 23:38:25,451 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 23:38:25,451 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-19 23:38:25,451 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 11:38:25 BoogieIcfgContainer [2023-12-19 23:38:25,451 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 23:38:25,453 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 23:38:25,453 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 23:38:25,455 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 23:38:25,455 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 11:38:24" (1/3) ... [2023-12-19 23:38:25,456 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25a6e8e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 11:38:25, skipping insertion in model container [2023-12-19 23:38:25,456 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:38:24" (2/3) ... [2023-12-19 23:38:25,456 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25a6e8e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 11:38:25, skipping insertion in model container [2023-12-19 23:38:25,456 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 11:38:25" (3/3) ... [2023-12-19 23:38:25,457 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product53.cil.c [2023-12-19 23:38:25,468 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 23:38:25,468 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 23:38:25,501 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 23:38:25,505 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;@4eae22a8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 23:38:25,505 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 23:38:25,518 INFO L276 IsEmpty]: Start isEmpty. Operand has 81 states, 54 states have (on average 1.537037037037037) internal successors, (83), 64 states have internal predecessors, (83), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-19 23:38:25,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-19 23:38:25,524 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:38:25,524 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:38:25,524 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:38:25,527 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:38:25,527 INFO L85 PathProgramCache]: Analyzing trace with hash 523841794, now seen corresponding path program 1 times [2023-12-19 23:38:25,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:38:25,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58417728] [2023-12-19 23:38:25,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:38:25,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:38:25,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:25,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 23:38:25,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:25,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 23:38:25,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:38:25,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58417728] [2023-12-19 23:38:25,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58417728] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:38:25,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:38:25,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 23:38:25,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997902053] [2023-12-19 23:38:25,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:38:25,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-19 23:38:25,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:38:25,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-19 23:38:25,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 23:38:25,759 INFO L87 Difference]: Start difference. First operand has 81 states, 54 states have (on average 1.537037037037037) internal successors, (83), 64 states have internal predecessors, (83), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-19 23:38:25,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:38:25,822 INFO L93 Difference]: Finished difference Result 160 states and 231 transitions. [2023-12-19 23:38:25,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-19 23:38:25,826 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2023-12-19 23:38:25,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:38:25,833 INFO L225 Difference]: With dead ends: 160 [2023-12-19 23:38:25,833 INFO L226 Difference]: Without dead ends: 76 [2023-12-19 23:38:25,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 23:38:25,839 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:38:25,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 95 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:38:25,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2023-12-19 23:38:25,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2023-12-19 23:38:25,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 51 states have (on average 1.4313725490196079) internal successors, (73), 60 states have internal predecessors, (73), 16 states have call successors, (16), 9 states have call predecessors, (16), 8 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-19 23:38:25,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 104 transitions. [2023-12-19 23:38:25,874 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 104 transitions. Word has length 17 [2023-12-19 23:38:25,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:38:25,875 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 104 transitions. [2023-12-19 23:38:25,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-19 23:38:25,875 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 104 transitions. [2023-12-19 23:38:25,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-19 23:38:25,877 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:38:25,877 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:38:25,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-19 23:38:25,878 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:38:25,879 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:38:25,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1198796036, now seen corresponding path program 1 times [2023-12-19 23:38:25,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:38:25,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303178158] [2023-12-19 23:38:25,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:38:25,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:38:25,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:25,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 23:38:25,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:25,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 23:38:25,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:38:25,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303178158] [2023-12-19 23:38:25,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303178158] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:38:25,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:38:25,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 23:38:25,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654984925] [2023-12-19 23:38:25,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:38:25,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 23:38:25,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:38:25,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 23:38:25,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 23:38:25,983 INFO L87 Difference]: Start difference. First operand 76 states and 104 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-19 23:38:26,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:38:26,009 INFO L93 Difference]: Finished difference Result 125 states and 171 transitions. [2023-12-19 23:38:26,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 23:38:26,010 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2023-12-19 23:38:26,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:38:26,011 INFO L225 Difference]: With dead ends: 125 [2023-12-19 23:38:26,011 INFO L226 Difference]: Without dead ends: 68 [2023-12-19 23:38:26,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 23:38:26,012 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 11 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:38:26,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 148 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:38:26,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2023-12-19 23:38:26,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2023-12-19 23:38:26,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 46 states have (on average 1.4565217391304348) internal successors, (67), 55 states have internal predecessors, (67), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 8 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-19 23:38:26,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 93 transitions. [2023-12-19 23:38:26,019 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 93 transitions. Word has length 18 [2023-12-19 23:38:26,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:38:26,019 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 93 transitions. [2023-12-19 23:38:26,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-19 23:38:26,019 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 93 transitions. [2023-12-19 23:38:26,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-19 23:38:26,025 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:38:26,025 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:38:26,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-19 23:38:26,025 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:38:26,026 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:38:26,026 INFO L85 PathProgramCache]: Analyzing trace with hash -691618870, now seen corresponding path program 1 times [2023-12-19 23:38:26,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:38:26,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535498650] [2023-12-19 23:38:26,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:38:26,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:38:26,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:26,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 23:38:26,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:26,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 23:38:26,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:38:26,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535498650] [2023-12-19 23:38:26,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535498650] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:38:26,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:38:26,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 23:38:26,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221480166] [2023-12-19 23:38:26,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:38:26,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 23:38:26,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:38:26,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 23:38:26,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 23:38:26,123 INFO L87 Difference]: Start difference. First operand 68 states and 93 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-19 23:38:26,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:38:26,215 INFO L93 Difference]: Finished difference Result 134 states and 185 transitions. [2023-12-19 23:38:26,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 23:38:26,215 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2023-12-19 23:38:26,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:38:26,216 INFO L225 Difference]: With dead ends: 134 [2023-12-19 23:38:26,216 INFO L226 Difference]: Without dead ends: 68 [2023-12-19 23:38:26,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-19 23:38:26,217 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 92 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:38:26,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 118 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 23:38:26,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2023-12-19 23:38:26,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2023-12-19 23:38:26,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 46 states have (on average 1.434782608695652) internal successors, (66), 55 states have internal predecessors, (66), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 8 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-19 23:38:26,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 92 transitions. [2023-12-19 23:38:26,224 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 92 transitions. Word has length 21 [2023-12-19 23:38:26,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:38:26,225 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 92 transitions. [2023-12-19 23:38:26,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-19 23:38:26,225 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 92 transitions. [2023-12-19 23:38:26,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-19 23:38:26,226 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:38:26,226 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:38:26,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-19 23:38:26,226 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:38:26,226 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:38:26,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1202771704, now seen corresponding path program 1 times [2023-12-19 23:38:26,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:38:26,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888128425] [2023-12-19 23:38:26,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:38:26,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:38:26,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:26,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 23:38:26,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:26,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 23:38:26,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:26,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-12-19 23:38:26,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:26,329 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-19 23:38:26,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:38:26,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888128425] [2023-12-19 23:38:26,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888128425] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:38:26,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:38:26,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 23:38:26,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807151048] [2023-12-19 23:38:26,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:38:26,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 23:38:26,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:38:26,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 23:38:26,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 23:38:26,331 INFO L87 Difference]: Start difference. First operand 68 states and 92 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-19 23:38:26,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:38:26,479 INFO L93 Difference]: Finished difference Result 205 states and 279 transitions. [2023-12-19 23:38:26,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 23:38:26,480 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 31 [2023-12-19 23:38:26,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:38:26,486 INFO L225 Difference]: With dead ends: 205 [2023-12-19 23:38:26,486 INFO L226 Difference]: Without dead ends: 139 [2023-12-19 23:38:26,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-19 23:38:26,491 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 134 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:38:26,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 157 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 23:38:26,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2023-12-19 23:38:26,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 133. [2023-12-19 23:38:26,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 93 states have (on average 1.3763440860215055) internal successors, (128), 101 states have internal predecessors, (128), 19 states have call successors, (19), 15 states have call predecessors, (19), 20 states have return successors, (30), 21 states have call predecessors, (30), 19 states have call successors, (30) [2023-12-19 23:38:26,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 177 transitions. [2023-12-19 23:38:26,507 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 177 transitions. Word has length 31 [2023-12-19 23:38:26,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:38:26,507 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 177 transitions. [2023-12-19 23:38:26,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-19 23:38:26,507 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 177 transitions. [2023-12-19 23:38:26,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-19 23:38:26,508 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:38:26,508 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:38:26,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-19 23:38:26,508 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:38:26,508 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:38:26,509 INFO L85 PathProgramCache]: Analyzing trace with hash 2128512413, now seen corresponding path program 1 times [2023-12-19 23:38:26,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:38:26,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567257621] [2023-12-19 23:38:26,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:38:26,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:38:26,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:26,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 23:38:26,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:26,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:38:26,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:26,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-19 23:38:26,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:26,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 23:38:26,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:38:26,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567257621] [2023-12-19 23:38:26,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567257621] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:38:26,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:38:26,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 23:38:26,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376818791] [2023-12-19 23:38:26,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:38:26,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 23:38:26,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:38:26,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 23:38:26,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 23:38:26,592 INFO L87 Difference]: Start difference. First operand 133 states and 177 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-19 23:38:26,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:38:26,718 INFO L93 Difference]: Finished difference Result 268 states and 362 transitions. [2023-12-19 23:38:26,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 23:38:26,718 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 38 [2023-12-19 23:38:26,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:38:26,720 INFO L225 Difference]: With dead ends: 268 [2023-12-19 23:38:26,720 INFO L226 Difference]: Without dead ends: 137 [2023-12-19 23:38:26,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-19 23:38:26,727 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 55 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:38:26,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 233 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 23:38:26,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2023-12-19 23:38:26,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 135. [2023-12-19 23:38:26,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 95 states have (on average 1.368421052631579) internal successors, (130), 103 states have internal predecessors, (130), 19 states have call successors, (19), 15 states have call predecessors, (19), 20 states have return successors, (30), 21 states have call predecessors, (30), 19 states have call successors, (30) [2023-12-19 23:38:26,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 179 transitions. [2023-12-19 23:38:26,747 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 179 transitions. Word has length 38 [2023-12-19 23:38:26,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:38:26,747 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 179 transitions. [2023-12-19 23:38:26,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-19 23:38:26,748 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 179 transitions. [2023-12-19 23:38:26,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-19 23:38:26,750 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:38:26,750 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:38:26,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-19 23:38:26,750 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:38:26,751 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:38:26,751 INFO L85 PathProgramCache]: Analyzing trace with hash 540164511, now seen corresponding path program 1 times [2023-12-19 23:38:26,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:38:26,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131196014] [2023-12-19 23:38:26,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:38:26,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:38:26,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:26,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 23:38:26,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:26,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:38:26,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:26,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-19 23:38:26,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:26,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 23:38:26,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:38:26,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131196014] [2023-12-19 23:38:26,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131196014] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:38:26,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:38:26,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 23:38:26,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710867529] [2023-12-19 23:38:26,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:38:26,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 23:38:26,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:38:26,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 23:38:26,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 23:38:26,843 INFO L87 Difference]: Start difference. First operand 135 states and 179 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-19 23:38:26,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:38:26,958 INFO L93 Difference]: Finished difference Result 277 states and 379 transitions. [2023-12-19 23:38:26,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 23:38:26,959 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 38 [2023-12-19 23:38:26,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:38:26,962 INFO L225 Difference]: With dead ends: 277 [2023-12-19 23:38:26,962 INFO L226 Difference]: Without dead ends: 144 [2023-12-19 23:38:26,962 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-19 23:38:26,965 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 61 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:38:26,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 231 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 23:38:26,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2023-12-19 23:38:26,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 137. [2023-12-19 23:38:26,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 97 states have (on average 1.3608247422680413) internal successors, (132), 105 states have internal predecessors, (132), 19 states have call successors, (19), 15 states have call predecessors, (19), 20 states have return successors, (30), 21 states have call predecessors, (30), 19 states have call successors, (30) [2023-12-19 23:38:26,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 181 transitions. [2023-12-19 23:38:26,989 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 181 transitions. Word has length 38 [2023-12-19 23:38:26,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:38:26,989 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 181 transitions. [2023-12-19 23:38:26,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-19 23:38:26,990 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 181 transitions. [2023-12-19 23:38:26,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-19 23:38:26,990 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:38:26,990 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:38:26,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-19 23:38:26,991 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:38:26,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:38:26,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1148779231, now seen corresponding path program 1 times [2023-12-19 23:38:26,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:38:26,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788484758] [2023-12-19 23:38:26,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:38:26,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:38:27,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:27,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 23:38:27,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:27,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:38:27,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:27,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-19 23:38:27,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:27,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 23:38:27,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:38:27,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788484758] [2023-12-19 23:38:27,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788484758] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:38:27,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:38:27,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 23:38:27,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489837319] [2023-12-19 23:38:27,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:38:27,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 23:38:27,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:38:27,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 23:38:27,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 23:38:27,078 INFO L87 Difference]: Start difference. First operand 137 states and 181 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-19 23:38:27,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:38:27,257 INFO L93 Difference]: Finished difference Result 395 states and 539 transitions. [2023-12-19 23:38:27,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 23:38:27,257 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 38 [2023-12-19 23:38:27,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:38:27,259 INFO L225 Difference]: With dead ends: 395 [2023-12-19 23:38:27,259 INFO L226 Difference]: Without dead ends: 260 [2023-12-19 23:38:27,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-19 23:38:27,260 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 199 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:38:27,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 243 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 23:38:27,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2023-12-19 23:38:27,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 252. [2023-12-19 23:38:27,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 179 states have (on average 1.318435754189944) internal successors, (236), 191 states have internal predecessors, (236), 36 states have call successors, (36), 33 states have call predecessors, (36), 36 states have return successors, (62), 37 states have call predecessors, (62), 36 states have call successors, (62) [2023-12-19 23:38:27,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 334 transitions. [2023-12-19 23:38:27,276 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 334 transitions. Word has length 38 [2023-12-19 23:38:27,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:38:27,276 INFO L495 AbstractCegarLoop]: Abstraction has 252 states and 334 transitions. [2023-12-19 23:38:27,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-19 23:38:27,276 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 334 transitions. [2023-12-19 23:38:27,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-19 23:38:27,277 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:38:27,277 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:38:27,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-19 23:38:27,277 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:38:27,278 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:38:27,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1886251438, now seen corresponding path program 1 times [2023-12-19 23:38:27,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:38:27,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820068552] [2023-12-19 23:38:27,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:38:27,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:38:27,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:27,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 23:38:27,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:27,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:38:27,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:27,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 23:38:27,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:27,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-19 23:38:27,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:27,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 23:38:27,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:38:27,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820068552] [2023-12-19 23:38:27,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820068552] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:38:27,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:38:27,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 23:38:27,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204286559] [2023-12-19 23:38:27,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:38:27,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 23:38:27,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:38:27,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 23:38:27,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 23:38:27,375 INFO L87 Difference]: Start difference. First operand 252 states and 334 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-19 23:38:27,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:38:27,512 INFO L93 Difference]: Finished difference Result 506 states and 675 transitions. [2023-12-19 23:38:27,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 23:38:27,513 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 41 [2023-12-19 23:38:27,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:38:27,514 INFO L225 Difference]: With dead ends: 506 [2023-12-19 23:38:27,514 INFO L226 Difference]: Without dead ends: 256 [2023-12-19 23:38:27,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-19 23:38:27,516 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 107 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:38:27,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 192 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 23:38:27,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2023-12-19 23:38:27,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 248. [2023-12-19 23:38:27,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 175 states have (on average 1.28) internal successors, (224), 187 states have internal predecessors, (224), 36 states have call successors, (36), 33 states have call predecessors, (36), 36 states have return successors, (62), 37 states have call predecessors, (62), 36 states have call successors, (62) [2023-12-19 23:38:27,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 322 transitions. [2023-12-19 23:38:27,533 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 322 transitions. Word has length 41 [2023-12-19 23:38:27,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:38:27,534 INFO L495 AbstractCegarLoop]: Abstraction has 248 states and 322 transitions. [2023-12-19 23:38:27,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-19 23:38:27,534 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 322 transitions. [2023-12-19 23:38:27,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-12-19 23:38:27,536 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:38:27,536 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:38:27,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-19 23:38:27,536 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:38:27,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:38:27,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1726638151, now seen corresponding path program 1 times [2023-12-19 23:38:27,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:38:27,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720025808] [2023-12-19 23:38:27,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:38:27,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:38:27,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:27,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 23:38:27,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:27,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-19 23:38:27,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:27,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:38:27,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:27,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-19 23:38:27,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:27,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 23:38:27,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:38:27,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720025808] [2023-12-19 23:38:27,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720025808] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:38:27,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:38:27,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 23:38:27,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307842967] [2023-12-19 23:38:27,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:38:27,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 23:38:27,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:38:27,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 23:38:27,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 23:38:27,611 INFO L87 Difference]: Start difference. First operand 248 states and 322 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-19 23:38:27,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:38:27,849 INFO L93 Difference]: Finished difference Result 510 states and 708 transitions. [2023-12-19 23:38:27,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 23:38:27,849 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 42 [2023-12-19 23:38:27,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:38:27,852 INFO L225 Difference]: With dead ends: 510 [2023-12-19 23:38:27,852 INFO L226 Difference]: Without dead ends: 508 [2023-12-19 23:38:27,852 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-19 23:38:27,853 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 276 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 23:38:27,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 143 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 23:38:27,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2023-12-19 23:38:27,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 454. [2023-12-19 23:38:27,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 319 states have (on average 1.2884012539184952) internal successors, (411), 346 states have internal predecessors, (411), 70 states have call successors, (70), 51 states have call predecessors, (70), 64 states have return successors, (156), 70 states have call predecessors, (156), 70 states have call successors, (156) [2023-12-19 23:38:27,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 637 transitions. [2023-12-19 23:38:27,882 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 637 transitions. Word has length 42 [2023-12-19 23:38:27,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:38:27,882 INFO L495 AbstractCegarLoop]: Abstraction has 454 states and 637 transitions. [2023-12-19 23:38:27,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-19 23:38:27,882 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 637 transitions. [2023-12-19 23:38:27,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-19 23:38:27,883 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:38:27,883 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:38:27,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-19 23:38:27,884 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:38:27,884 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:38:27,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1366671313, now seen corresponding path program 1 times [2023-12-19 23:38:27,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:38:27,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116075255] [2023-12-19 23:38:27,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:38:27,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:38:27,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:27,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 23:38:27,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:27,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 23:38:27,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:27,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-19 23:38:27,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:27,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:38:27,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:27,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 23:38:27,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:27,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 23:38:27,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:27,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:38:27,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:27,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-19 23:38:27,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:27,980 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 18 proven. 5 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-19 23:38:27,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:38:27,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116075255] [2023-12-19 23:38:27,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116075255] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 23:38:27,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [723271226] [2023-12-19 23:38:27,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:38:27,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:38:27,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:38:27,983 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 23:38:28,014 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-19 23:38:28,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:28,063 INFO L262 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-19 23:38:28,067 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 23:38:28,131 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 23:38:28,131 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 23:38:28,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [723271226] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:38:28,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 23:38:28,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 8 [2023-12-19 23:38:28,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839824830] [2023-12-19 23:38:28,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:38:28,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 23:38:28,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:38:28,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 23:38:28,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-19 23:38:28,132 INFO L87 Difference]: Start difference. First operand 454 states and 637 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-19 23:38:28,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:38:28,172 INFO L93 Difference]: Finished difference Result 775 states and 1117 transitions. [2023-12-19 23:38:28,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 23:38:28,172 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 79 [2023-12-19 23:38:28,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:38:28,174 INFO L225 Difference]: With dead ends: 775 [2023-12-19 23:38:28,174 INFO L226 Difference]: Without dead ends: 371 [2023-12-19 23:38:28,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-19 23:38:28,175 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 48 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:38:28,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 168 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:38:28,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2023-12-19 23:38:28,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 371. [2023-12-19 23:38:28,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 260 states have (on average 1.2615384615384615) internal successors, (328), 283 states have internal predecessors, (328), 58 states have call successors, (58), 44 states have call predecessors, (58), 52 states have return successors, (90), 57 states have call predecessors, (90), 58 states have call successors, (90) [2023-12-19 23:38:28,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 476 transitions. [2023-12-19 23:38:28,196 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 476 transitions. Word has length 79 [2023-12-19 23:38:28,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:38:28,196 INFO L495 AbstractCegarLoop]: Abstraction has 371 states and 476 transitions. [2023-12-19 23:38:28,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-19 23:38:28,196 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 476 transitions. [2023-12-19 23:38:28,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-19 23:38:28,197 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:38:28,197 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:38:28,205 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-19 23:38:28,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-12-19 23:38:28,403 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:38:28,404 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:38:28,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1190707798, now seen corresponding path program 1 times [2023-12-19 23:38:28,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:38:28,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197115149] [2023-12-19 23:38:28,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:38:28,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:38:28,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:28,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 23:38:28,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:28,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 23:38:28,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:28,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-19 23:38:28,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:28,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:38:28,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:28,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 23:38:28,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:28,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 23:38:28,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:28,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-19 23:38:28,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:28,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 23:38:28,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:28,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:38:28,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:28,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-19 23:38:28,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:28,538 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-19 23:38:28,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:38:28,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197115149] [2023-12-19 23:38:28,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197115149] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 23:38:28,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [53462701] [2023-12-19 23:38:28,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:38:28,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:38:28,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:38:28,540 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 23:38:28,566 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-19 23:38:28,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:28,611 INFO L262 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-19 23:38:28,614 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 23:38:28,678 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 23:38:28,678 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 23:38:28,801 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-19 23:38:28,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [53462701] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 23:38:28,801 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-19 23:38:28,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5, 6] total 16 [2023-12-19 23:38:28,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937183985] [2023-12-19 23:38:28,801 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-19 23:38:28,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-19 23:38:28,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:38:28,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-19 23:38:28,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2023-12-19 23:38:28,803 INFO L87 Difference]: Start difference. First operand 371 states and 476 transitions. Second operand has 16 states, 15 states have (on average 8.4) internal successors, (126), 12 states have internal predecessors, (126), 7 states have call successors, (26), 7 states have call predecessors, (26), 7 states have return successors, (24), 8 states have call predecessors, (24), 7 states have call successors, (24) [2023-12-19 23:38:31,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:38:31,596 INFO L93 Difference]: Finished difference Result 1841 states and 2598 transitions. [2023-12-19 23:38:31,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2023-12-19 23:38:31,596 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 8.4) internal successors, (126), 12 states have internal predecessors, (126), 7 states have call successors, (26), 7 states have call predecessors, (26), 7 states have return successors, (24), 8 states have call predecessors, (24), 7 states have call successors, (24) Word has length 87 [2023-12-19 23:38:31,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:38:31,601 INFO L225 Difference]: With dead ends: 1841 [2023-12-19 23:38:31,601 INFO L226 Difference]: Without dead ends: 1472 [2023-12-19 23:38:31,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 213 SyntacticMatches, 2 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6052 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1562, Invalid=14188, Unknown=0, NotChecked=0, Total=15750 [2023-12-19 23:38:31,607 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 1266 mSDsluCounter, 885 mSDsCounter, 0 mSdLazyCounter, 2639 mSolverCounterSat, 665 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1273 SdHoareTripleChecker+Valid, 1062 SdHoareTripleChecker+Invalid, 3304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 665 IncrementalHoareTripleChecker+Valid, 2639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-19 23:38:31,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1273 Valid, 1062 Invalid, 3304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [665 Valid, 2639 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-19 23:38:31,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1472 states. [2023-12-19 23:38:31,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1472 to 1219. [2023-12-19 23:38:31,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1219 states, 848 states have (on average 1.179245283018868) internal successors, (1000), 913 states have internal predecessors, (1000), 192 states have call successors, (192), 149 states have call predecessors, (192), 178 states have return successors, (311), 190 states have call predecessors, (311), 192 states have call successors, (311) [2023-12-19 23:38:31,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1219 states to 1219 states and 1503 transitions. [2023-12-19 23:38:31,659 INFO L78 Accepts]: Start accepts. Automaton has 1219 states and 1503 transitions. Word has length 87 [2023-12-19 23:38:31,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:38:31,659 INFO L495 AbstractCegarLoop]: Abstraction has 1219 states and 1503 transitions. [2023-12-19 23:38:31,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 8.4) internal successors, (126), 12 states have internal predecessors, (126), 7 states have call successors, (26), 7 states have call predecessors, (26), 7 states have return successors, (24), 8 states have call predecessors, (24), 7 states have call successors, (24) [2023-12-19 23:38:31,660 INFO L276 IsEmpty]: Start isEmpty. Operand 1219 states and 1503 transitions. [2023-12-19 23:38:31,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-19 23:38:31,661 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:38:31,661 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:38:31,666 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-19 23:38:31,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-12-19 23:38:31,867 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:38:31,867 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:38:31,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1128598104, now seen corresponding path program 1 times [2023-12-19 23:38:31,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:38:31,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611759299] [2023-12-19 23:38:31,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:38:31,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:38:31,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:31,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 23:38:31,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:31,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-19 23:38:31,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:31,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-19 23:38:31,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:31,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-19 23:38:31,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:31,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:38:31,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:31,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 23:38:31,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:31,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-19 23:38:31,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:31,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-19 23:38:31,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:31,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 23:38:31,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:31,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:38:31,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:31,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-19 23:38:31,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:31,970 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-19 23:38:31,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:38:31,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611759299] [2023-12-19 23:38:31,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611759299] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 23:38:31,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [451021476] [2023-12-19 23:38:31,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:38:31,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:38:31,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:38:31,972 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 23:38:31,974 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-19 23:38:32,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:38:32,035 INFO L262 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-19 23:38:32,037 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 23:38:32,112 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-19 23:38:32,112 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 23:38:32,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [451021476] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:38:32,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 23:38:32,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2023-12-19 23:38:32,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894929177] [2023-12-19 23:38:32,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:38:32,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 23:38:32,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:38:32,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 23:38:32,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2023-12-19 23:38:32,113 INFO L87 Difference]: Start difference. First operand 1219 states and 1503 transitions. Second operand has 6 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (11), 3 states have call predecessors, (11), 4 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-19 23:38:32,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:38:32,212 INFO L93 Difference]: Finished difference Result 2012 states and 2483 transitions. [2023-12-19 23:38:32,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 23:38:32,212 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (11), 3 states have call predecessors, (11), 4 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) Word has length 91 [2023-12-19 23:38:32,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:38:32,213 INFO L225 Difference]: With dead ends: 2012 [2023-12-19 23:38:32,213 INFO L226 Difference]: Without dead ends: 0 [2023-12-19 23:38:32,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2023-12-19 23:38:32,216 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 24 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:38:32,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 505 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 23:38:32,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-19 23:38:32,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-19 23:38:32,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 23:38:32,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-19 23:38:32,217 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 91 [2023-12-19 23:38:32,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:38:32,218 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-19 23:38:32,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (11), 3 states have call predecessors, (11), 4 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-19 23:38:32,218 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-19 23:38:32,218 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-19 23:38:32,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-19 23:38:32,247 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-19 23:38:32,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:38:32,427 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-19 23:38:35,204 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 624 631) no Hoare annotation was computed. [2023-12-19 23:38:35,204 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 624 631) the Hoare annotation is: (let ((.cse3 (< ~methaneLevelCritical~0 1)) (.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (< |old(~pumpRunning~0)| 1)) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 (< ~waterLevel~0 1) .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse2 (not (= ~methAndRunningLastTime~0 0)) .cse3) (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1 .cse2))) [2023-12-19 23:38:35,204 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 531 537) no Hoare annotation was computed. [2023-12-19 23:38:35,204 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 531 537) the Hoare annotation is: true [2023-12-19 23:38:35,204 INFO L899 garLoopResultBuilder]: For program point L897-1(lines 893 904) no Hoare annotation was computed. [2023-12-19 23:38:35,204 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 893 904) the Hoare annotation is: (let ((.cse0 (< ~pumpRunning~0 1)) (.cse5 (<= 1 ~methaneLevelCritical~0)) (.cse7 (< |old(~methaneLevelCritical~0)| 1)) (.cse1 (not (= |old(~methaneLevelCritical~0)| 0))) (.cse6 (not (= ~pumpRunning~0 0))) (.cse2 (= ~methaneLevelCritical~0 0)) (.cse3 (= 0 ~systemActive~0)) (.cse4 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse6 .cse7 .cse3 .cse4) (or .cse0 .cse5 .cse7 (< ~waterLevel~0 2) .cse3) (or .cse1 .cse6 .cse2 .cse3 .cse4))) [2023-12-19 23:38:35,204 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 893 904) no Hoare annotation was computed. [2023-12-19 23:38:35,204 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 905 913) the Hoare annotation is: true [2023-12-19 23:38:35,205 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 905 913) no Hoare annotation was computed. [2023-12-19 23:38:35,205 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 767 796) no Hoare annotation was computed. [2023-12-19 23:38:35,205 INFO L899 garLoopResultBuilder]: For program point L792(lines 767 796) no Hoare annotation was computed. [2023-12-19 23:38:35,205 INFO L899 garLoopResultBuilder]: For program point L788(line 788) no Hoare annotation was computed. [2023-12-19 23:38:35,205 INFO L899 garLoopResultBuilder]: For program point L781(lines 781 785) no Hoare annotation was computed. [2023-12-19 23:38:35,205 INFO L902 garLoopResultBuilder]: At program point L781-1(lines 781 785) the Hoare annotation is: true [2023-12-19 23:38:35,205 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 767 796) the Hoare annotation is: true [2023-12-19 23:38:35,205 INFO L902 garLoopResultBuilder]: At program point L777-2(lines 777 791) the Hoare annotation is: true [2023-12-19 23:38:35,205 INFO L902 garLoopResultBuilder]: At program point L773(line 773) the Hoare annotation is: true [2023-12-19 23:38:35,205 INFO L899 garLoopResultBuilder]: For program point L773-1(line 773) no Hoare annotation was computed. [2023-12-19 23:38:35,205 INFO L895 garLoopResultBuilder]: At program point L605(line 605) the Hoare annotation is: (let ((.cse3 (< ~methaneLevelCritical~0 1)) (.cse6 (< |old(~waterLevel~0)| 2)) (.cse1 (< |old(~pumpRunning~0)| 1)) (.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse0 .cse2 .cse3) (or .cse5 (not (= |old(~waterLevel~0)| 0)) .cse1 .cse2 (and (= |old(~methAndRunningLastTime~0)| ~methAndRunningLastTime~0) (= ~waterLevel~0 0))) (or .cse6 .cse1 .cse2 .cse3) (or .cse6 .cse5 (<= 1 ~waterLevel~0) .cse1 .cse2) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse5 .cse1 .cse2) (or .cse4 .cse0 .cse5 .cse2))) [2023-12-19 23:38:35,205 INFO L895 garLoopResultBuilder]: At program point L601(line 601) the Hoare annotation is: (let ((.cse1 (not (= |old(~waterLevel~0)| 0))) (.cse4 (= ~waterLevel~0 0)) (.cse8 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse9 (<= 1 |timeShift_processEnvironment_~tmp~6#1|)) (.cse11 (<= 1 ~waterLevel~0)) (.cse10 (< |old(~waterLevel~0)| 2)) (.cse2 (< |old(~pumpRunning~0)| 1)) (.cse5 (< ~methaneLevelCritical~0 1)) (.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse7 (not (= ~methaneLevelCritical~0 0))) (.cse3 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse6 .cse0 .cse3 .cse5) (or .cse7 .cse1 .cse2 .cse3 (and (= |old(~methAndRunningLastTime~0)| ~methAndRunningLastTime~0) .cse4)) (or (and .cse8 (= ~methAndRunningLastTime~0 0) .cse9) .cse0 .cse2 .cse3 .cse5) (or .cse10 .cse7 .cse11 .cse2 .cse3) (or .cse8 .cse7 .cse2 .cse3) (or (and .cse8 .cse9 .cse11) .cse10 .cse2 .cse3 .cse5) (or .cse6 .cse0 .cse7 .cse3))) [2023-12-19 23:38:35,206 INFO L895 garLoopResultBuilder]: At program point L742(line 742) the Hoare annotation is: (let ((.cse4 (= 0 ~systemActive~0))) (let ((.cse13 (= ~pumpRunning~0 0)) (.cse15 (not .cse4)) (.cse6 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse16 (= |old(~methAndRunningLastTime~0)| ~methAndRunningLastTime~0)) (.cse17 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (and (<= 1 ~pumpRunning~0) (= ~methAndRunningLastTime~0 0) (<= 2 ~waterLevel~0) .cse17)) (.cse3 (and .cse6 .cse17 .cse16)) (.cse12 (< |old(~waterLevel~0)| 2)) (.cse14 (<= 1 ~waterLevel~0)) (.cse7 (not (= ~methaneLevelCritical~0 0))) (.cse10 (not (= |old(~waterLevel~0)| 0))) (.cse11 (= ~waterLevel~0 0)) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse8 (and .cse13 .cse15)) (.cse9 (< |old(~pumpRunning~0)| 1)) (.cse5 (< ~methaneLevelCritical~0 1))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse6 .cse7 .cse8 .cse9 .cse4) (or .cse1 .cse10 .cse9 .cse4 .cse11 .cse5) (or .cse0 .cse1 .cse2 .cse3 .cse7 .cse4) (or .cse12 .cse9 .cse4 (and .cse13 .cse14 .cse15) .cse5) (or .cse12 .cse7 .cse14 .cse9 .cse4) (or (and .cse13 .cse11 .cse15) .cse7 .cse10 .cse9 .cse4 (and .cse16 .cse11)) (or .cse1 .cse8 .cse9 .cse4 .cse5))))) [2023-12-19 23:38:35,206 INFO L899 garLoopResultBuilder]: For program point L742-1(line 742) no Hoare annotation was computed. [2023-12-19 23:38:35,206 INFO L895 garLoopResultBuilder]: At program point L610(line 610) the Hoare annotation is: (let ((.cse1 (< |old(~pumpRunning~0)| 1)) (.cse4 (< ~methaneLevelCritical~0 1)) (.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse6 (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |old(~waterLevel~0)| ~waterLevel~0))) (.cse0 (not (= ~methaneLevelCritical~0 0))) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse1 .cse2 .cse4) (or .cse5 .cse3 .cse6 .cse2 .cse4) (or (< |old(~waterLevel~0)| 2) .cse1 .cse2 .cse4) (or .cse5 .cse3 .cse6 .cse0 .cse2))) [2023-12-19 23:38:35,206 INFO L899 garLoopResultBuilder]: For program point L610-1(lines 591 615) no Hoare annotation was computed. [2023-12-19 23:38:35,206 INFO L899 garLoopResultBuilder]: For program point L511-1(lines 510 529) no Hoare annotation was computed. [2023-12-19 23:38:35,206 INFO L899 garLoopResultBuilder]: For program point L599(lines 599 607) no Hoare annotation was computed. [2023-12-19 23:38:35,206 INFO L899 garLoopResultBuilder]: For program point L54(line 54) no Hoare annotation was computed. [2023-12-19 23:38:35,206 INFO L899 garLoopResultBuilder]: For program point L595(lines 595 612) no Hoare annotation was computed. [2023-12-19 23:38:35,206 INFO L899 garLoopResultBuilder]: For program point L748(lines 748 758) no Hoare annotation was computed. [2023-12-19 23:38:35,207 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 507 530) the Hoare annotation is: (let ((.cse9 (= ~methAndRunningLastTime~0 0)) (.cse8 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse10 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse0 (and .cse8 .cse10 (= |old(~methAndRunningLastTime~0)| ~methAndRunningLastTime~0))) (.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (and (= ~pumpRunning~0 0) .cse9 .cse10)) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse5 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse2 (< |old(~pumpRunning~0)| 1)) (.cse3 (= 0 ~systemActive~0)) (.cse7 (< ~methaneLevelCritical~0 1))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse6 .cse3 .cse7) (or (< |old(~waterLevel~0)| 2) .cse0 .cse2 .cse3 .cse7) (or .cse4 .cse5 .cse6 .cse1 .cse3) (or (and .cse8 .cse9 .cse10) .cse5 .cse2 .cse3 .cse7)))) [2023-12-19 23:38:35,207 INFO L899 garLoopResultBuilder]: For program point L744(lines 744 761) no Hoare annotation was computed. [2023-12-19 23:38:35,207 INFO L899 garLoopResultBuilder]: For program point L744-1(lines 736 764) no Hoare annotation was computed. [2023-12-19 23:38:35,207 INFO L895 garLoopResultBuilder]: At program point L637(line 637) the Hoare annotation is: (let ((.cse5 (< ~methaneLevelCritical~0 1)) (.cse7 (not (= |old(~waterLevel~0)| 0))) (.cse8 (= ~waterLevel~0 0)) (.cse0 (< |old(~waterLevel~0)| 2)) (.cse2 (<= 1 ~waterLevel~0)) (.cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse3 (< |old(~pumpRunning~0)| 1)) (.cse9 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse10 (not (= ~methaneLevelCritical~0 0))) (.cse4 (= 0 ~systemActive~0))) (and (or .cse0 (and .cse1 .cse2) .cse3 .cse4 .cse5) (or .cse6 (and .cse1 (= ~methAndRunningLastTime~0 0)) .cse3 .cse4 .cse5) (or .cse6 .cse7 .cse3 .cse4 .cse8 .cse5) (or .cse9 .cse6 .cse4 .cse5) (or .cse10 .cse7 .cse3 .cse4 (and (= |old(~methAndRunningLastTime~0)| ~methAndRunningLastTime~0) .cse8)) (or .cse0 .cse10 .cse2 .cse3 .cse4) (or .cse1 .cse10 .cse3 .cse4) (or .cse9 .cse6 .cse10 .cse4))) [2023-12-19 23:38:35,207 INFO L899 garLoopResultBuilder]: For program point L637-1(line 637) no Hoare annotation was computed. [2023-12-19 23:38:35,207 INFO L899 garLoopResultBuilder]: For program point L749(lines 749 755) no Hoare annotation was computed. [2023-12-19 23:38:35,207 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 507 530) no Hoare annotation was computed. [2023-12-19 23:38:35,207 INFO L899 garLoopResultBuilder]: For program point L873(lines 873 877) no Hoare annotation was computed. [2023-12-19 23:38:35,207 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 54) no Hoare annotation was computed. [2023-12-19 23:38:35,207 INFO L899 garLoopResultBuilder]: For program point L873-2(lines 869 880) no Hoare annotation was computed. [2023-12-19 23:38:35,207 INFO L899 garLoopResultBuilder]: For program point L518-1(lines 518 524) no Hoare annotation was computed. [2023-12-19 23:38:35,207 INFO L899 garLoopResultBuilder]: For program point L93(lines 93 99) no Hoare annotation was computed. [2023-12-19 23:38:35,208 INFO L899 garLoopResultBuilder]: For program point L93-1(lines 93 99) no Hoare annotation was computed. [2023-12-19 23:38:35,208 INFO L899 garLoopResultBuilder]: For program point L122(lines 63 126) no Hoare annotation was computed. [2023-12-19 23:38:35,208 INFO L895 garLoopResultBuilder]: At program point L85(line 85) the Hoare annotation is: (let ((.cse2 (<= 1 ~methaneLevelCritical~0)) (.cse6 (<= 1 ~pumpRunning~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse7 (= ~methaneLevelCritical~0 0)) (.cse3 (= |ULTIMATE.start_main_~tmp~10#1| ~systemActive~0)) (.cse4 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse5 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse2 (<= 2 ~waterLevel~0) .cse3 .cse4 .cse5) (and .cse6 .cse1 .cse7 .cse3 .cse4 .cse5) (and .cse0 .cse1 .cse7 .cse3 .cse4 .cse5))) [2023-12-19 23:38:35,208 INFO L895 garLoopResultBuilder]: At program point L119(lines 72 120) the Hoare annotation is: false [2023-12-19 23:38:35,208 INFO L899 garLoopResultBuilder]: For program point L74(lines 73 118) no Hoare annotation was computed. [2023-12-19 23:38:35,208 INFO L899 garLoopResultBuilder]: For program point L103(lines 103 114) no Hoare annotation was computed. [2023-12-19 23:38:35,208 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-19 23:38:35,208 INFO L895 garLoopResultBuilder]: At program point L95(line 95) the Hoare annotation is: (let ((.cse2 (<= 1 ~methaneLevelCritical~0)) (.cse6 (<= 1 ~pumpRunning~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse7 (= ~methaneLevelCritical~0 0)) (.cse3 (= |ULTIMATE.start_main_~tmp~10#1| ~systemActive~0)) (.cse4 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse5 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse2 (<= 2 ~waterLevel~0) .cse3 .cse4 .cse5) (and .cse6 .cse1 .cse7 .cse3 .cse4 .cse5) (and .cse0 .cse1 .cse7 .cse3 .cse4 .cse5))) [2023-12-19 23:38:35,208 INFO L895 garLoopResultBuilder]: At program point L116(lines 73 118) the Hoare annotation is: (let ((.cse2 (<= 1 ~methaneLevelCritical~0)) (.cse6 (<= 1 ~pumpRunning~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse7 (= ~methaneLevelCritical~0 0)) (.cse3 (= |ULTIMATE.start_main_~tmp~10#1| ~systemActive~0)) (.cse4 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse5 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse2 (<= 2 ~waterLevel~0) .cse3 .cse4 .cse5) (and .cse6 .cse1 .cse7 .cse3 .cse4 .cse5) (and .cse0 .cse1 .cse7 .cse3 .cse4 .cse5))) [2023-12-19 23:38:35,208 INFO L899 garLoopResultBuilder]: For program point L83(lines 83 89) no Hoare annotation was computed. [2023-12-19 23:38:35,208 INFO L899 garLoopResultBuilder]: For program point L83-1(lines 83 89) no Hoare annotation was computed. [2023-12-19 23:38:35,208 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-19 23:38:35,208 INFO L899 garLoopResultBuilder]: For program point L852(lines 852 859) no Hoare annotation was computed. [2023-12-19 23:38:35,208 INFO L899 garLoopResultBuilder]: For program point L852-2(lines 852 859) no Hoare annotation was computed. [2023-12-19 23:38:35,209 INFO L899 garLoopResultBuilder]: For program point L109(lines 109 113) no Hoare annotation was computed. [2023-12-19 23:38:35,209 INFO L895 garLoopResultBuilder]: At program point L109-2(lines 103 114) the Hoare annotation is: (let ((.cse2 (<= 1 ~methaneLevelCritical~0)) (.cse6 (= ~pumpRunning~0 0)) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse0 (<= 1 ~pumpRunning~0)) (.cse7 (= ~methaneLevelCritical~0 0)) (.cse3 (= |ULTIMATE.start_main_~tmp~10#1| ~systemActive~0)) (.cse4 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse5 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse2 (<= 2 ~waterLevel~0) .cse3 .cse4 .cse5) (and .cse6 .cse1 .cse7 .cse3 .cse4 .cse5) (and .cse0 .cse7 .cse3 .cse4 .cse5))) [2023-12-19 23:38:35,209 INFO L899 garLoopResultBuilder]: For program point L543(lines 543 560) no Hoare annotation was computed. [2023-12-19 23:38:35,209 INFO L899 garLoopResultBuilder]: For program point L950(lines 950 956) no Hoare annotation was computed. [2023-12-19 23:38:35,209 INFO L895 garLoopResultBuilder]: At program point L558(line 558) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (= ~methAndRunningLastTime~0 0))) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse2 .cse3 (< ~methaneLevelCritical~0 1)) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 (< |old(~pumpRunning~0)| 1) .cse2))) [2023-12-19 23:38:35,209 INFO L899 garLoopResultBuilder]: For program point L558-1(lines 539 563) no Hoare annotation was computed. [2023-12-19 23:38:35,209 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 539 563) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse3 (not (= ~methAndRunningLastTime~0 0))) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 .cse3 (< ~methaneLevelCritical~0 1)) (or .cse0 .cse1 .cse4 .cse2 .cse3) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse4 (< |old(~pumpRunning~0)| 1) .cse2))) [2023-12-19 23:38:35,209 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDry_returnLabel#1(lines 946 959) no Hoare annotation was computed. [2023-12-19 23:38:35,209 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 539 563) no Hoare annotation was computed. [2023-12-19 23:38:35,209 INFO L899 garLoopResultBuilder]: For program point L697(lines 697 701) no Hoare annotation was computed. [2023-12-19 23:38:35,209 INFO L899 garLoopResultBuilder]: For program point L697-2(lines 697 701) no Hoare annotation was computed. [2023-12-19 23:38:35,209 INFO L895 garLoopResultBuilder]: At program point L553(line 553) the Hoare annotation is: (let ((.cse1 (= 0 ~systemActive~0))) (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= ~methaneLevelCritical~0 0))) (.cse3 (and (= ~pumpRunning~0 0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~4#1| 0) (not .cse1))) (.cse4 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 (< |old(~pumpRunning~0)| 1) .cse1) (or .cse2 .cse3 .cse1 .cse4 (< ~methaneLevelCritical~0 1)) (or .cse2 .cse0 .cse3 .cse1 .cse4)))) [2023-12-19 23:38:35,209 INFO L899 garLoopResultBuilder]: For program point L547(lines 547 555) no Hoare annotation was computed. [2023-12-19 23:38:35,209 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 881 892) no Hoare annotation was computed. [2023-12-19 23:38:35,210 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 881 892) the Hoare annotation is: (let ((.cse0 (< ~pumpRunning~0 1)) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse6 (not (= ~pumpRunning~0 0))) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse3 (= 0 ~systemActive~0)) (.cse4 (not (= ~methAndRunningLastTime~0 0))) (.cse5 (< ~methaneLevelCritical~0 1))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 (< |old(~waterLevel~0)| 2) .cse2 .cse3 .cse5) (or .cse6 .cse1 .cse2 .cse3 .cse4) (or .cse6 .cse2 .cse3 .cse4 .cse5))) [2023-12-19 23:38:35,210 INFO L899 garLoopResultBuilder]: For program point L885-1(lines 881 892) no Hoare annotation was computed. [2023-12-19 23:38:35,210 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 565 589) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse3 (not (= ~methAndRunningLastTime~0 0))) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 .cse3 (< ~methaneLevelCritical~0 1)) (or .cse0 .cse1 .cse4 .cse2 .cse3) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse4 (< |old(~pumpRunning~0)| 1) .cse2))) [2023-12-19 23:38:35,210 INFO L895 garLoopResultBuilder]: At program point L579(line 579) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (= ~methAndRunningLastTime~0 0))) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse2 .cse3 (< ~methaneLevelCritical~0 1)) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 (< |old(~pumpRunning~0)| 1) .cse2))) [2023-12-19 23:38:35,210 INFO L895 garLoopResultBuilder]: At program point L575(line 575) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (= ~methAndRunningLastTime~0 0))) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse2 .cse3 (< ~methaneLevelCritical~0 1)) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 (< |old(~pumpRunning~0)| 1) .cse2))) [2023-12-19 23:38:35,210 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__lowWaterSensorEXIT(lines 565 589) no Hoare annotation was computed. [2023-12-19 23:38:35,210 INFO L899 garLoopResultBuilder]: For program point L573(lines 573 581) no Hoare annotation was computed. [2023-12-19 23:38:35,210 INFO L899 garLoopResultBuilder]: For program point L569(lines 569 586) no Hoare annotation was computed. [2023-12-19 23:38:35,210 INFO L899 garLoopResultBuilder]: For program point L716(lines 716 720) no Hoare annotation was computed. [2023-12-19 23:38:35,210 INFO L899 garLoopResultBuilder]: For program point L716-2(lines 716 720) no Hoare annotation was computed. [2023-12-19 23:38:35,210 INFO L895 garLoopResultBuilder]: At program point L584(line 584) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse2 (= 0 ~systemActive~0)) (.cse3 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3 (< ~methaneLevelCritical~0 1)) (or .cse4 (< |old(~pumpRunning~0)| 1) .cse2) (or .cse0 .cse1 .cse4 .cse2 .cse3))) [2023-12-19 23:38:35,210 INFO L899 garLoopResultBuilder]: For program point L584-1(lines 565 589) no Hoare annotation was computed. [2023-12-19 23:38:35,212 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:38:35,213 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-19 23:38:35,221 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 11:38:35 BoogieIcfgContainer [2023-12-19 23:38:35,221 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-19 23:38:35,221 INFO L158 Benchmark]: Toolchain (without parser) took 10665.49ms. Allocated memory was 304.1MB in the beginning and 372.2MB in the end (delta: 68.2MB). Free memory was 250.7MB in the beginning and 291.5MB in the end (delta: -40.8MB). Peak memory consumption was 203.0MB. Max. memory is 8.0GB. [2023-12-19 23:38:35,221 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 211.8MB. Free memory is still 161.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 23:38:35,221 INFO L158 Benchmark]: CACSL2BoogieTranslator took 310.14ms. Allocated memory is still 304.1MB. Free memory was 250.4MB in the beginning and 230.4MB in the end (delta: 20.0MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-12-19 23:38:35,222 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.21ms. Allocated memory is still 304.1MB. Free memory was 230.4MB in the beginning and 227.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-19 23:38:35,222 INFO L158 Benchmark]: Boogie Preprocessor took 34.47ms. Allocated memory is still 304.1MB. Free memory was 227.8MB in the beginning and 225.6MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-19 23:38:35,222 INFO L158 Benchmark]: RCFGBuilder took 501.58ms. Allocated memory is still 304.1MB. Free memory was 225.6MB in the beginning and 264.4MB in the end (delta: -38.9MB). Peak memory consumption was 21.4MB. Max. memory is 8.0GB. [2023-12-19 23:38:35,222 INFO L158 Benchmark]: TraceAbstraction took 9767.89ms. Allocated memory was 304.1MB in the beginning and 372.2MB in the end (delta: 68.2MB). Free memory was 263.4MB in the beginning and 291.5MB in the end (delta: -28.1MB). Peak memory consumption was 215.1MB. Max. memory is 8.0GB. [2023-12-19 23:38:35,223 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43ms. Allocated memory is still 211.8MB. Free memory is still 161.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 310.14ms. Allocated memory is still 304.1MB. Free memory was 250.4MB in the beginning and 230.4MB in the end (delta: 20.0MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 47.21ms. Allocated memory is still 304.1MB. Free memory was 230.4MB in the beginning and 227.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 34.47ms. Allocated memory is still 304.1MB. Free memory was 227.8MB in the beginning and 225.6MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 501.58ms. Allocated memory is still 304.1MB. Free memory was 225.6MB in the beginning and 264.4MB in the end (delta: -38.9MB). Peak memory consumption was 21.4MB. Max. memory is 8.0GB. * TraceAbstraction took 9767.89ms. Allocated memory was 304.1MB in the beginning and 372.2MB in the end (delta: 68.2MB). Free memory was 263.4MB in the beginning and 291.5MB in the end (delta: -28.1MB). Peak memory consumption was 215.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] - GenericResultAtLocation [Line: 58]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [58] - GenericResultAtLocation [Line: 127]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [127] - GenericResultAtLocation [Line: 493]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [493] - GenericResultAtLocation [Line: 726]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [726] - GenericResultAtLocation [Line: 765]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [765] - GenericResultAtLocation [Line: 865]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [865] - GenericResultAtLocation [Line: 969]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [969] * 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: 54]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 81 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.7s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2313 SdHoareTripleChecker+Valid, 2.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2273 mSDsluCounter, 3295 SdHoareTripleChecker+Invalid, 1.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2186 mSDsCounter, 978 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3765 IncrementalHoareTripleChecker+Invalid, 4743 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 978 mSolverCounterUnsat, 1109 mSDtfsCounter, 3765 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 669 GetRequests, 486 SyntacticMatches, 3 SemanticMatches, 180 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6089 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1219occurred in iteration=11, InterpolantAutomatonStates: 172, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 12 MinimizatonAttempts, 338 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 27 LocationsWithAnnotation, 1270 PreInvPairs, 1435 NumberOfFragments, 1735 HoareAnnotationTreeSize, 1270 FormulaSimplifications, 1857 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 27 FormulaSimplificationsInter, 12471 FormulaSimplificationTreeSizeReductionInter, 2.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 798 NumberOfCodeBlocks, 798 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 869 ConstructedInterpolants, 0 QuantifiedInterpolants, 1631 SizeOfPredicates, 6 NumberOfNonLiveVariables, 964 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 16 InterpolantComputations, 11 PerfectInterpolantSequences, 217/232 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: 72]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 777]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 73]: Loop Invariant Derived loop invariant: (((((((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 <= methaneLevelCritical)) && (tmp == systemActive)) && (splverifierCounter == 0)) && !((0 == systemActive))) || ((((((1 <= pumpRunning) && (1 <= methaneLevelCritical)) && (2 <= waterLevel)) && (tmp == systemActive)) && (splverifierCounter == 0)) && !((0 == systemActive)))) || ((((((1 <= pumpRunning) && (methAndRunningLastTime == 0)) && (methaneLevelCritical == 0)) && (tmp == systemActive)) && (splverifierCounter == 0)) && !((0 == systemActive)))) || ((((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (methaneLevelCritical == 0)) && (tmp == systemActive)) && (splverifierCounter == 0)) && !((0 == systemActive)))) RESULT: Ultimate proved your program to be correct! [2023-12-19 23:38:35,252 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...