/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product49.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 06:02:47,254 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 06:02:47,326 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-25 06:02:47,329 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 06:02:47,329 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 06:02:47,344 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 06:02:47,345 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 06:02:47,345 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 06:02:47,345 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 06:02:47,346 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 06:02:47,346 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 06:02:47,346 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 06:02:47,346 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 06:02:47,347 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 06:02:47,347 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 06:02:47,347 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 06:02:47,347 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 06:02:47,347 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 06:02:47,348 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 06:02:47,351 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 06:02:47,354 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 06:02:47,354 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 06:02:47,354 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 06:02:47,355 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 06:02:47,355 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 06:02:47,355 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 06:02:47,356 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 06:02:47,356 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 06:02:47,356 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 06:02:47,356 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 06:02:47,357 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 06:02:47,357 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 06:02:47,357 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 06:02:47,357 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 06:02:47,357 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 06:02:47,357 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 06:02:47,357 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 06:02:47,357 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 06:02:47,358 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 06:02:47,358 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 06:02:47,358 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 06:02:47,358 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 06:02:47,358 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 06:02:47,358 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 06:02:47,358 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 06:02:47,359 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 06:02:47,359 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 06:02:47,546 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 06:02:47,560 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 06:02:47,561 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 06:02:47,562 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 06:02:47,562 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 06:02:47,563 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product49.cil.c [2023-12-25 06:02:48,596 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 06:02:48,800 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 06:02:48,800 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product49.cil.c [2023-12-25 06:02:48,815 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e573e50d/b1e67cec363047878c23ba8d140cf1a9/FLAG69959230b [2023-12-25 06:02:48,824 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e573e50d/b1e67cec363047878c23ba8d140cf1a9 [2023-12-25 06:02:48,826 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 06:02:48,827 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 06:02:48,829 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 06:02:48,829 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 06:02:48,834 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 06:02:48,835 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 06:02:48" (1/1) ... [2023-12-25 06:02:48,835 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@636ad4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:02:48, skipping insertion in model container [2023-12-25 06:02:48,836 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 06:02:48" (1/1) ... [2023-12-25 06:02:48,873 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 06:02:49,129 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product49.cil.c[18588,18601] [2023-12-25 06:02:49,134 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 06:02:49,144 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-25 06:02:49,153 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 06:02:49,209 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product49.cil.c[18588,18601] [2023-12-25 06:02:49,210 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 06:02:49,220 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 06:02:49,226 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [49] [2023-12-25 06:02:49,227 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [257] [2023-12-25 06:02:49,227 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [325] [2023-12-25 06:02:49,228 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [361] [2023-12-25 06:02:49,228 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [464] [2023-12-25 06:02:49,228 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [502] [2023-12-25 06:02:49,228 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [868] [2023-12-25 06:02:49,228 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [964] [2023-12-25 06:02:49,259 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product49.cil.c[18588,18601] [2023-12-25 06:02:49,260 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 06:02:49,275 INFO L206 MainTranslator]: Completed translation [2023-12-25 06:02:49,275 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:02:49 WrapperNode [2023-12-25 06:02:49,275 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 06:02:49,279 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 06:02:49,279 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 06:02:49,280 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 06:02:49,285 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:02:49" (1/1) ... [2023-12-25 06:02:49,298 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:02:49" (1/1) ... [2023-12-25 06:02:49,317 INFO L138 Inliner]: procedures = 57, calls = 99, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 198 [2023-12-25 06:02:49,317 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 06:02:49,318 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 06:02:49,318 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 06:02:49,318 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 06:02:49,325 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:02:49" (1/1) ... [2023-12-25 06:02:49,325 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:02:49" (1/1) ... [2023-12-25 06:02:49,333 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:02:49" (1/1) ... [2023-12-25 06:02:49,343 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-25 06:02:49,343 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:02:49" (1/1) ... [2023-12-25 06:02:49,343 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:02:49" (1/1) ... [2023-12-25 06:02:49,349 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:02:49" (1/1) ... [2023-12-25 06:02:49,352 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:02:49" (1/1) ... [2023-12-25 06:02:49,353 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:02:49" (1/1) ... [2023-12-25 06:02:49,354 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:02:49" (1/1) ... [2023-12-25 06:02:49,356 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 06:02:49,357 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 06:02:49,357 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 06:02:49,357 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 06:02:49,358 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:02:49" (1/1) ... [2023-12-25 06:02:49,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 06:02:49,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 06:02:49,378 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-25 06:02:49,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-25 06:02:49,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 06:02:49,398 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-12-25 06:02:49,398 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-12-25 06:02:49,398 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-25 06:02:49,398 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-25 06:02:49,398 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-12-25 06:02:49,398 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-12-25 06:02:49,398 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-25 06:02:49,398 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-25 06:02:49,398 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-12-25 06:02:49,398 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-12-25 06:02:49,398 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-12-25 06:02:49,399 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-12-25 06:02:49,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 06:02:49,399 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-12-25 06:02:49,399 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-12-25 06:02:49,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 06:02:49,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 06:02:49,456 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 06:02:49,458 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 06:02:49,703 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 06:02:49,788 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 06:02:49,788 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-25 06:02:49,789 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 06:02:49 BoogieIcfgContainer [2023-12-25 06:02:49,789 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 06:02:49,790 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 06:02:49,790 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 06:02:49,793 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 06:02:49,793 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 06:02:48" (1/3) ... [2023-12-25 06:02:49,793 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@751b7008 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 06:02:49, skipping insertion in model container [2023-12-25 06:02:49,793 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:02:49" (2/3) ... [2023-12-25 06:02:49,794 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@751b7008 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 06:02:49, skipping insertion in model container [2023-12-25 06:02:49,794 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 06:02:49" (3/3) ... [2023-12-25 06:02:49,795 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product49.cil.c [2023-12-25 06:02:49,813 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 06:02:49,813 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 06:02:49,849 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 06:02:49,855 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;@7430511d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 06:02:49,855 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 06:02:49,859 INFO L276 IsEmpty]: Start isEmpty. Operand has 68 states, 48 states have (on average 1.5625) internal successors, (75), 56 states have internal predecessors, (75), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2023-12-25 06:02:49,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-25 06:02:49,868 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:02:49,868 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 06:02:49,869 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:02:49,874 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:02:49,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1206239256, now seen corresponding path program 1 times [2023-12-25 06:02:49,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:02:49,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1238288657] [2023-12-25 06:02:49,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 06:02:49,882 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 06:02:49,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:02:49,883 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 06:02:49,886 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-25 06:02:49,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 06:02:49,974 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-25 06:02:49,980 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:02:49,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 06:02:49,998 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 06:02:49,998 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:02:49,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1238288657] [2023-12-25 06:02:49,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1238288657] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 06:02:49,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 06:02:49,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 06:02:50,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265039623] [2023-12-25 06:02:50,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 06:02:50,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-25 06:02:50,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:02:50,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-25 06:02:50,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 06:02:50,026 INFO L87 Difference]: Start difference. First operand has 68 states, 48 states have (on average 1.5625) internal successors, (75), 56 states have internal predecessors, (75), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) 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), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-25 06:02:50,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:02:50,072 INFO L93 Difference]: Finished difference Result 134 states and 195 transitions. [2023-12-25 06:02:50,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-25 06:02:50,074 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), 1 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 [2023-12-25 06:02:50,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:02:50,081 INFO L225 Difference]: With dead ends: 134 [2023-12-25 06:02:50,081 INFO L226 Difference]: Without dead ends: 63 [2023-12-25 06:02:50,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 06:02:50,088 INFO L413 NwaCegarLoop]: 77 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, 77 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 [2023-12-25 06:02:50,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 77 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 06:02:50,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2023-12-25 06:02:50,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2023-12-25 06:02:50,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 45 states have (on average 1.4444444444444444) internal successors, (65), 52 states have internal predecessors, (65), 11 states have call successors, (11), 7 states have call predecessors, (11), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-25 06:02:50,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 86 transitions. [2023-12-25 06:02:50,129 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 86 transitions. Word has length 17 [2023-12-25 06:02:50,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:02:50,129 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 86 transitions. [2023-12-25 06:02:50,130 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), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-25 06:02:50,130 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 86 transitions. [2023-12-25 06:02:50,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-25 06:02:50,131 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:02:50,131 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 06:02:50,136 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-25 06:02:50,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 06:02:50,335 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:02:50,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:02:50,336 INFO L85 PathProgramCache]: Analyzing trace with hash -4886823, now seen corresponding path program 1 times [2023-12-25 06:02:50,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:02:50,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [447585626] [2023-12-25 06:02:50,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 06:02:50,337 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 06:02:50,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:02:50,338 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 06:02:50,344 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-25 06:02:50,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 06:02:50,395 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 06:02:50,397 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:02:50,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 06:02:50,411 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 06:02:50,412 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:02:50,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [447585626] [2023-12-25 06:02:50,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [447585626] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 06:02:50,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 06:02:50,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 06:02:50,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360174715] [2023-12-25 06:02:50,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 06:02:50,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 06:02:50,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:02:50,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 06:02:50,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 06:02:50,414 INFO L87 Difference]: Start difference. First operand 63 states and 86 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), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-25 06:02:50,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:02:50,459 INFO L93 Difference]: Finished difference Result 99 states and 135 transitions. [2023-12-25 06:02:50,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 06:02:50,459 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), 1 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 [2023-12-25 06:02:50,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:02:50,463 INFO L225 Difference]: With dead ends: 99 [2023-12-25 06:02:50,463 INFO L226 Difference]: Without dead ends: 55 [2023-12-25 06:02:50,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 06:02:50,466 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 11 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 112 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 [2023-12-25 06:02:50,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 112 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 06:02:50,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2023-12-25 06:02:50,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2023-12-25 06:02:50,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 40 states have (on average 1.475) internal successors, (59), 47 states have internal predecessors, (59), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-25 06:02:50,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 75 transitions. [2023-12-25 06:02:50,472 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 75 transitions. Word has length 18 [2023-12-25 06:02:50,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:02:50,472 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 75 transitions. [2023-12-25 06:02:50,472 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), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-25 06:02:50,472 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 75 transitions. [2023-12-25 06:02:50,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-25 06:02:50,473 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:02:50,473 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 06:02:50,476 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-25 06:02:50,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 06:02:50,676 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:02:50,676 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:02:50,676 INFO L85 PathProgramCache]: Analyzing trace with hash -893433127, now seen corresponding path program 1 times [2023-12-25 06:02:50,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:02:50,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [411637462] [2023-12-25 06:02:50,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 06:02:50,677 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 06:02:50,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:02:50,689 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 06:02:50,693 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-25 06:02:50,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 06:02:50,735 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 06:02:50,736 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:02:50,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 06:02:50,757 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 06:02:50,757 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:02:50,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [411637462] [2023-12-25 06:02:50,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [411637462] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 06:02:50,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 06:02:50,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 06:02:50,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224188089] [2023-12-25 06:02:50,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 06:02:50,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 06:02:50,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:02:50,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 06:02:50,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 06:02:50,759 INFO L87 Difference]: Start difference. First operand 55 states and 75 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 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) [2023-12-25 06:02:50,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:02:50,791 INFO L93 Difference]: Finished difference Result 108 states and 149 transitions. [2023-12-25 06:02:50,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 06:02:50,792 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 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 [2023-12-25 06:02:50,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:02:50,795 INFO L225 Difference]: With dead ends: 108 [2023-12-25 06:02:50,795 INFO L226 Difference]: Without dead ends: 55 [2023-12-25 06:02:50,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 06:02:50,800 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 63 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 06:02:50,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 61 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 06:02:50,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2023-12-25 06:02:50,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2023-12-25 06:02:50,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 40 states have (on average 1.45) internal successors, (58), 47 states have internal predecessors, (58), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-25 06:02:50,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 74 transitions. [2023-12-25 06:02:50,810 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 74 transitions. Word has length 21 [2023-12-25 06:02:50,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:02:50,811 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 74 transitions. [2023-12-25 06:02:50,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 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) [2023-12-25 06:02:50,811 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 74 transitions. [2023-12-25 06:02:50,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-25 06:02:50,811 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:02:50,811 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] [2023-12-25 06:02:50,824 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-25 06:02:51,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 06:02:51,028 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:02:51,028 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:02:51,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1740781390, now seen corresponding path program 1 times [2023-12-25 06:02:51,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:02:51,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [40305507] [2023-12-25 06:02:51,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 06:02:51,029 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 06:02:51,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:02:51,031 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 06:02:51,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-25 06:02:51,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 06:02:51,072 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 06:02:51,075 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:02:51,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 06:02:51,131 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 06:02:51,131 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:02:51,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [40305507] [2023-12-25 06:02:51,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [40305507] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 06:02:51,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 06:02:51,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 06:02:51,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351034337] [2023-12-25 06:02:51,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 06:02:51,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 06:02:51,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:02:51,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 06:02:51,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 06:02:51,136 INFO L87 Difference]: Start difference. First operand 55 states and 74 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-25 06:02:51,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:02:51,192 INFO L93 Difference]: Finished difference Result 147 states and 201 transitions. [2023-12-25 06:02:51,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 06:02:51,194 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 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 26 [2023-12-25 06:02:51,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:02:51,195 INFO L225 Difference]: With dead ends: 147 [2023-12-25 06:02:51,195 INFO L226 Difference]: Without dead ends: 94 [2023-12-25 06:02:51,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 06:02:51,196 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 48 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 06:02:51,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 121 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 06:02:51,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-12-25 06:02:51,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 92. [2023-12-25 06:02:51,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 67 states have (on average 1.4029850746268657) internal successors, (94), 74 states have internal predecessors, (94), 12 states have call successors, (12), 12 states have call predecessors, (12), 12 states have return successors, (16), 12 states have call predecessors, (16), 12 states have call successors, (16) [2023-12-25 06:02:51,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 122 transitions. [2023-12-25 06:02:51,207 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 122 transitions. Word has length 26 [2023-12-25 06:02:51,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:02:51,208 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 122 transitions. [2023-12-25 06:02:51,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-25 06:02:51,208 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 122 transitions. [2023-12-25 06:02:51,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-12-25 06:02:51,208 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:02:51,208 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] [2023-12-25 06:02:51,217 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-12-25 06:02:51,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 06:02:51,414 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:02:51,414 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:02:51,414 INFO L85 PathProgramCache]: Analyzing trace with hash -2120512231, now seen corresponding path program 1 times [2023-12-25 06:02:51,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:02:51,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1411336539] [2023-12-25 06:02:51,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 06:02:51,415 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 06:02:51,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:02:51,416 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 06:02:51,418 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-25 06:02:51,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 06:02:51,452 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 06:02:51,454 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:02:51,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 06:02:51,468 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 06:02:51,468 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:02:51,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1411336539] [2023-12-25 06:02:51,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1411336539] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 06:02:51,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 06:02:51,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 06:02:51,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374816012] [2023-12-25 06:02:51,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 06:02:51,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 06:02:51,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:02:51,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 06:02:51,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 06:02:51,470 INFO L87 Difference]: Start difference. First operand 92 states and 122 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-25 06:02:51,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:02:51,509 INFO L93 Difference]: Finished difference Result 184 states and 249 transitions. [2023-12-25 06:02:51,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 06:02:51,509 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 33 [2023-12-25 06:02:51,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:02:51,510 INFO L225 Difference]: With dead ends: 184 [2023-12-25 06:02:51,510 INFO L226 Difference]: Without dead ends: 94 [2023-12-25 06:02:51,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 06:02:51,511 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 2 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 06:02:51,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 186 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 06:02:51,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-12-25 06:02:51,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2023-12-25 06:02:51,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 69 states have (on average 1.391304347826087) internal successors, (96), 76 states have internal predecessors, (96), 12 states have call successors, (12), 12 states have call predecessors, (12), 12 states have return successors, (16), 12 states have call predecessors, (16), 12 states have call successors, (16) [2023-12-25 06:02:51,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 124 transitions. [2023-12-25 06:02:51,523 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 124 transitions. Word has length 33 [2023-12-25 06:02:51,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:02:51,524 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 124 transitions. [2023-12-25 06:02:51,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-25 06:02:51,524 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 124 transitions. [2023-12-25 06:02:51,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-12-25 06:02:51,529 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:02:51,529 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] [2023-12-25 06:02:51,538 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-12-25 06:02:51,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 06:02:51,731 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:02:51,732 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:02:51,732 INFO L85 PathProgramCache]: Analyzing trace with hash 894591387, now seen corresponding path program 1 times [2023-12-25 06:02:51,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:02:51,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1882809357] [2023-12-25 06:02:51,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 06:02:51,732 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 06:02:51,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:02:51,734 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 06:02:51,735 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-25 06:02:51,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 06:02:51,782 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 06:02:51,783 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:02:51,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 06:02:51,796 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 06:02:51,796 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:02:51,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1882809357] [2023-12-25 06:02:51,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1882809357] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 06:02:51,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 06:02:51,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 06:02:51,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997244084] [2023-12-25 06:02:51,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 06:02:51,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 06:02:51,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:02:51,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 06:02:51,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 06:02:51,798 INFO L87 Difference]: Start difference. First operand 94 states and 124 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-25 06:02:51,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:02:51,845 INFO L93 Difference]: Finished difference Result 193 states and 264 transitions. [2023-12-25 06:02:51,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 06:02:51,845 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 33 [2023-12-25 06:02:51,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:02:51,848 INFO L225 Difference]: With dead ends: 193 [2023-12-25 06:02:51,848 INFO L226 Difference]: Without dead ends: 101 [2023-12-25 06:02:51,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 06:02:51,851 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 6 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 06:02:51,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 184 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 06:02:51,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2023-12-25 06:02:51,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 96. [2023-12-25 06:02:51,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 71 states have (on average 1.380281690140845) internal successors, (98), 78 states have internal predecessors, (98), 12 states have call successors, (12), 12 states have call predecessors, (12), 12 states have return successors, (16), 12 states have call predecessors, (16), 12 states have call successors, (16) [2023-12-25 06:02:51,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 126 transitions. [2023-12-25 06:02:51,874 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 126 transitions. Word has length 33 [2023-12-25 06:02:51,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:02:51,874 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 126 transitions. [2023-12-25 06:02:51,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-25 06:02:51,874 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 126 transitions. [2023-12-25 06:02:51,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-12-25 06:02:51,876 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:02:51,876 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] [2023-12-25 06:02:51,880 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-12-25 06:02:52,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 06:02:52,080 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:02:52,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:02:52,080 INFO L85 PathProgramCache]: Analyzing trace with hash -693756515, now seen corresponding path program 1 times [2023-12-25 06:02:52,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:02:52,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [161557716] [2023-12-25 06:02:52,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 06:02:52,081 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 06:02:52,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:02:52,082 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 06:02:52,084 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-25 06:02:52,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 06:02:52,147 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 06:02:52,149 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:02:52,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 06:02:52,175 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 06:02:52,175 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:02:52,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [161557716] [2023-12-25 06:02:52,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [161557716] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 06:02:52,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 06:02:52,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 06:02:52,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388145796] [2023-12-25 06:02:52,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 06:02:52,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 06:02:52,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:02:52,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 06:02:52,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 06:02:52,176 INFO L87 Difference]: Start difference. First operand 96 states and 126 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-25 06:02:52,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:02:52,213 INFO L93 Difference]: Finished difference Result 234 states and 309 transitions. [2023-12-25 06:02:52,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 06:02:52,214 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 33 [2023-12-25 06:02:52,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:02:52,214 INFO L225 Difference]: With dead ends: 234 [2023-12-25 06:02:52,215 INFO L226 Difference]: Without dead ends: 140 [2023-12-25 06:02:52,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 06:02:52,215 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 36 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 06:02:52,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 116 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 06:02:52,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2023-12-25 06:02:52,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 138. [2023-12-25 06:02:52,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 102 states have (on average 1.3431372549019607) internal successors, (137), 110 states have internal predecessors, (137), 18 states have call successors, (18), 18 states have call predecessors, (18), 17 states have return successors, (22), 17 states have call predecessors, (22), 18 states have call successors, (22) [2023-12-25 06:02:52,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 177 transitions. [2023-12-25 06:02:52,225 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 177 transitions. Word has length 33 [2023-12-25 06:02:52,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:02:52,225 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 177 transitions. [2023-12-25 06:02:52,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-25 06:02:52,225 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 177 transitions. [2023-12-25 06:02:52,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-25 06:02:52,226 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:02:52,226 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 06:02:52,231 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-25 06:02:52,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 06:02:52,431 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:02:52,432 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:02:52,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1256472111, now seen corresponding path program 1 times [2023-12-25 06:02:52,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:02:52,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [352502140] [2023-12-25 06:02:52,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 06:02:52,432 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 06:02:52,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:02:52,433 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 06:02:52,435 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-25 06:02:52,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 06:02:52,469 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 06:02:52,470 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:02:52,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 06:02:52,529 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 06:02:52,529 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:02:52,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [352502140] [2023-12-25 06:02:52,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [352502140] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 06:02:52,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 06:02:52,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 06:02:52,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599429503] [2023-12-25 06:02:52,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 06:02:52,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 06:02:52,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:02:52,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 06:02:52,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 06:02:52,530 INFO L87 Difference]: Start difference. First operand 138 states and 177 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-25 06:02:52,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:02:52,577 INFO L93 Difference]: Finished difference Result 274 states and 352 transitions. [2023-12-25 06:02:52,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 06:02:52,578 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (4), 1 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 36 [2023-12-25 06:02:52,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:02:52,579 INFO L225 Difference]: With dead ends: 274 [2023-12-25 06:02:52,579 INFO L226 Difference]: Without dead ends: 138 [2023-12-25 06:02:52,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 06:02:52,580 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 17 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 06:02:52,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 173 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 06:02:52,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2023-12-25 06:02:52,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 137. [2023-12-25 06:02:52,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 101 states have (on average 1.3267326732673268) internal successors, (134), 109 states have internal predecessors, (134), 18 states have call successors, (18), 18 states have call predecessors, (18), 17 states have return successors, (22), 17 states have call predecessors, (22), 18 states have call successors, (22) [2023-12-25 06:02:52,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 174 transitions. [2023-12-25 06:02:52,588 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 174 transitions. Word has length 36 [2023-12-25 06:02:52,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:02:52,588 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 174 transitions. [2023-12-25 06:02:52,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-25 06:02:52,589 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 174 transitions. [2023-12-25 06:02:52,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-12-25 06:02:52,589 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:02:52,589 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] [2023-12-25 06:02:52,594 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-25 06:02:52,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 06:02:52,793 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:02:52,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:02:52,793 INFO L85 PathProgramCache]: Analyzing trace with hash -631412105, now seen corresponding path program 1 times [2023-12-25 06:02:52,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:02:52,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [833465057] [2023-12-25 06:02:52,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 06:02:52,794 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 06:02:52,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:02:52,795 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 06:02:52,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-25 06:02:52,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 06:02:52,835 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 06:02:52,837 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:02:52,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 06:02:52,858 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 06:02:52,858 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:02:52,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [833465057] [2023-12-25 06:02:52,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [833465057] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 06:02:52,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 06:02:52,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 06:02:52,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110893467] [2023-12-25 06:02:52,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 06:02:52,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 06:02:52,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:02:52,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 06:02:52,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 06:02:52,859 INFO L87 Difference]: Start difference. First operand 137 states and 174 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-25 06:02:52,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:02:52,913 INFO L93 Difference]: Finished difference Result 232 states and 302 transitions. [2023-12-25 06:02:52,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 06:02:52,915 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 37 [2023-12-25 06:02:52,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:02:52,916 INFO L225 Difference]: With dead ends: 232 [2023-12-25 06:02:52,916 INFO L226 Difference]: Without dead ends: 138 [2023-12-25 06:02:52,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 06:02:52,917 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 47 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 06:02:52,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 235 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 06:02:52,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2023-12-25 06:02:52,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 137. [2023-12-25 06:02:52,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 101 states have (on average 1.2871287128712872) internal successors, (130), 109 states have internal predecessors, (130), 18 states have call successors, (18), 18 states have call predecessors, (18), 17 states have return successors, (21), 17 states have call predecessors, (21), 18 states have call successors, (21) [2023-12-25 06:02:52,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 169 transitions. [2023-12-25 06:02:52,926 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 169 transitions. Word has length 37 [2023-12-25 06:02:52,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:02:52,926 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 169 transitions. [2023-12-25 06:02:52,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-25 06:02:52,926 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 169 transitions. [2023-12-25 06:02:52,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-12-25 06:02:52,927 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:02:52,927 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 06:02:52,929 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-25 06:02:53,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 06:02:53,130 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:02:53,130 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:02:53,130 INFO L85 PathProgramCache]: Analyzing trace with hash -1162048747, now seen corresponding path program 1 times [2023-12-25 06:02:53,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:02:53,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [988735164] [2023-12-25 06:02:53,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 06:02:53,131 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 06:02:53,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:02:53,132 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 06:02:53,133 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-25 06:02:53,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 06:02:53,190 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 06:02:53,192 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:02:53,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 06:02:53,237 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 06:02:53,237 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:02:53,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [988735164] [2023-12-25 06:02:53,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [988735164] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 06:02:53,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 06:02:53,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 06:02:53,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763473864] [2023-12-25 06:02:53,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 06:02:53,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 06:02:53,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:02:53,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 06:02:53,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-25 06:02:53,245 INFO L87 Difference]: Start difference. First operand 137 states and 169 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-12-25 06:02:53,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:02:53,449 INFO L93 Difference]: Finished difference Result 443 states and 568 transitions. [2023-12-25 06:02:53,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 06:02:53,449 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 40 [2023-12-25 06:02:53,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:02:53,451 INFO L225 Difference]: With dead ends: 443 [2023-12-25 06:02:53,451 INFO L226 Difference]: Without dead ends: 349 [2023-12-25 06:02:53,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-25 06:02:53,451 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 202 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 06:02:53,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 237 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 06:02:53,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2023-12-25 06:02:53,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 335. [2023-12-25 06:02:53,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 248 states have (on average 1.2943548387096775) internal successors, (321), 267 states have internal predecessors, (321), 43 states have call successors, (43), 39 states have call predecessors, (43), 43 states have return successors, (52), 42 states have call predecessors, (52), 43 states have call successors, (52) [2023-12-25 06:02:53,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 416 transitions. [2023-12-25 06:02:53,474 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 416 transitions. Word has length 40 [2023-12-25 06:02:53,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:02:53,475 INFO L495 AbstractCegarLoop]: Abstraction has 335 states and 416 transitions. [2023-12-25 06:02:53,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-12-25 06:02:53,475 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 416 transitions. [2023-12-25 06:02:53,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-12-25 06:02:53,475 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:02:53,475 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 06:02:53,492 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-25 06:02:53,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 06:02:53,678 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:02:53,678 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:02:53,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1979697197, now seen corresponding path program 1 times [2023-12-25 06:02:53,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:02:53,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1692973465] [2023-12-25 06:02:53,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 06:02:53,679 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 06:02:53,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:02:53,680 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 06:02:53,684 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-25 06:02:53,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 06:02:53,721 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 06:02:53,724 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:02:53,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 06:02:53,752 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 06:02:53,752 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:02:53,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1692973465] [2023-12-25 06:02:53,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1692973465] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 06:02:53,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 06:02:53,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 06:02:53,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623105942] [2023-12-25 06:02:53,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 06:02:53,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 06:02:53,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:02:53,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 06:02:53,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 06:02:53,754 INFO L87 Difference]: Start difference. First operand 335 states and 416 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-25 06:02:53,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:02:53,800 INFO L93 Difference]: Finished difference Result 632 states and 792 transitions. [2023-12-25 06:02:53,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 06:02:53,801 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 40 [2023-12-25 06:02:53,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:02:53,802 INFO L225 Difference]: With dead ends: 632 [2023-12-25 06:02:53,802 INFO L226 Difference]: Without dead ends: 338 [2023-12-25 06:02:53,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 06:02:53,803 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 7 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 06:02:53,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 188 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 06:02:53,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2023-12-25 06:02:53,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 335. [2023-12-25 06:02:53,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 247 states have (on average 1.2874493927125505) internal successors, (318), 266 states have internal predecessors, (318), 43 states have call successors, (43), 39 states have call predecessors, (43), 44 states have return successors, (52), 42 states have call predecessors, (52), 43 states have call successors, (52) [2023-12-25 06:02:53,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 413 transitions. [2023-12-25 06:02:53,823 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 413 transitions. Word has length 40 [2023-12-25 06:02:53,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:02:53,823 INFO L495 AbstractCegarLoop]: Abstraction has 335 states and 413 transitions. [2023-12-25 06:02:53,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-25 06:02:53,823 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 413 transitions. [2023-12-25 06:02:53,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-12-25 06:02:53,824 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:02:53,824 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 06:02:53,835 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-25 06:02:54,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 06:02:54,028 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:02:54,029 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:02:54,029 INFO L85 PathProgramCache]: Analyzing trace with hash 321125393, now seen corresponding path program 1 times [2023-12-25 06:02:54,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:02:54,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [330688261] [2023-12-25 06:02:54,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 06:02:54,029 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 06:02:54,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:02:54,030 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 06:02:54,034 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-25 06:02:54,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 06:02:54,064 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 06:02:54,065 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:02:54,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 06:02:54,076 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 06:02:54,076 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:02:54,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [330688261] [2023-12-25 06:02:54,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [330688261] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 06:02:54,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 06:02:54,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 06:02:54,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690696491] [2023-12-25 06:02:54,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 06:02:54,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 06:02:54,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:02:54,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 06:02:54,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 06:02:54,077 INFO L87 Difference]: Start difference. First operand 335 states and 413 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-25 06:02:54,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:02:54,117 INFO L93 Difference]: Finished difference Result 606 states and 756 transitions. [2023-12-25 06:02:54,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 06:02:54,118 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 40 [2023-12-25 06:02:54,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:02:54,119 INFO L225 Difference]: With dead ends: 606 [2023-12-25 06:02:54,119 INFO L226 Difference]: Without dead ends: 312 [2023-12-25 06:02:54,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 06:02:54,121 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 2 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 06:02:54,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 186 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 06:02:54,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2023-12-25 06:02:54,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 312. [2023-12-25 06:02:54,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 232 states have (on average 1.2801724137931034) internal successors, (297), 249 states have internal predecessors, (297), 40 states have call successors, (40), 36 states have call predecessors, (40), 39 states have return successors, (47), 38 states have call predecessors, (47), 40 states have call successors, (47) [2023-12-25 06:02:54,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 384 transitions. [2023-12-25 06:02:54,141 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 384 transitions. Word has length 40 [2023-12-25 06:02:54,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:02:54,141 INFO L495 AbstractCegarLoop]: Abstraction has 312 states and 384 transitions. [2023-12-25 06:02:54,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-25 06:02:54,141 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 384 transitions. [2023-12-25 06:02:54,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-25 06:02:54,142 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:02:54,142 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 06:02:54,158 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-25 06:02:54,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 06:02:54,348 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:02:54,349 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:02:54,349 INFO L85 PathProgramCache]: Analyzing trace with hash -1228219528, now seen corresponding path program 1 times [2023-12-25 06:02:54,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:02:54,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [327815408] [2023-12-25 06:02:54,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 06:02:54,350 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 06:02:54,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:02:54,351 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 06:02:54,352 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-25 06:02:54,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 06:02:54,400 INFO L262 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 06:02:54,401 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:02:54,464 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 06:02:54,464 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 06:02:54,465 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:02:54,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [327815408] [2023-12-25 06:02:54,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [327815408] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 06:02:54,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 06:02:54,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 06:02:54,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101064109] [2023-12-25 06:02:54,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 06:02:54,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 06:02:54,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:02:54,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 06:02:54,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-25 06:02:54,466 INFO L87 Difference]: Start difference. First operand 312 states and 384 transitions. Second operand has 6 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-25 06:02:54,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:02:54,561 INFO L93 Difference]: Finished difference Result 932 states and 1175 transitions. [2023-12-25 06:02:54,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 06:02:54,561 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 62 [2023-12-25 06:02:54,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:02:54,564 INFO L225 Difference]: With dead ends: 932 [2023-12-25 06:02:54,565 INFO L226 Difference]: Without dead ends: 622 [2023-12-25 06:02:54,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-25 06:02:54,566 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 44 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 06:02:54,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 249 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 06:02:54,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2023-12-25 06:02:54,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 620. [2023-12-25 06:02:54,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 620 states, 461 states have (on average 1.2472885032537961) internal successors, (575), 494 states have internal predecessors, (575), 80 states have call successors, (80), 72 states have call predecessors, (80), 78 states have return successors, (101), 76 states have call predecessors, (101), 80 states have call successors, (101) [2023-12-25 06:02:54,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 620 states to 620 states and 756 transitions. [2023-12-25 06:02:54,618 INFO L78 Accepts]: Start accepts. Automaton has 620 states and 756 transitions. Word has length 62 [2023-12-25 06:02:54,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:02:54,619 INFO L495 AbstractCegarLoop]: Abstraction has 620 states and 756 transitions. [2023-12-25 06:02:54,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-25 06:02:54,619 INFO L276 IsEmpty]: Start isEmpty. Operand 620 states and 756 transitions. [2023-12-25 06:02:54,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-25 06:02:54,620 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:02:54,620 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-25 06:02:54,624 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-25 06:02:54,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 06:02:54,822 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:02:54,823 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:02:54,823 INFO L85 PathProgramCache]: Analyzing trace with hash -976356146, now seen corresponding path program 1 times [2023-12-25 06:02:54,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:02:54,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [649948580] [2023-12-25 06:02:54,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 06:02:54,823 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 06:02:54,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:02:54,824 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 06:02:54,839 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-25 06:02:54,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 06:02:54,868 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 06:02:54,870 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:02:54,939 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 06:02:54,940 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 06:02:54,940 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:02:54,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [649948580] [2023-12-25 06:02:54,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [649948580] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 06:02:54,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 06:02:54,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 06:02:54,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353804215] [2023-12-25 06:02:54,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 06:02:54,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 06:02:54,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:02:54,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 06:02:54,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-25 06:02:54,941 INFO L87 Difference]: Start difference. First operand 620 states and 756 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 4 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2023-12-25 06:02:55,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:02:55,305 INFO L93 Difference]: Finished difference Result 1505 states and 1874 transitions. [2023-12-25 06:02:55,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-25 06:02:55,305 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 4 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 63 [2023-12-25 06:02:55,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:02:55,308 INFO L225 Difference]: With dead ends: 1505 [2023-12-25 06:02:55,308 INFO L226 Difference]: Without dead ends: 965 [2023-12-25 06:02:55,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2023-12-25 06:02:55,310 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 190 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 06:02:55,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 319 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 06:02:55,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 965 states. [2023-12-25 06:02:55,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 965 to 924. [2023-12-25 06:02:55,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 924 states, 680 states have (on average 1.214705882352941) internal successors, (826), 724 states have internal predecessors, (826), 120 states have call successors, (120), 114 states have call predecessors, (120), 123 states have return successors, (149), 116 states have call predecessors, (149), 120 states have call successors, (149) [2023-12-25 06:02:55,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 924 states to 924 states and 1095 transitions. [2023-12-25 06:02:55,408 INFO L78 Accepts]: Start accepts. Automaton has 924 states and 1095 transitions. Word has length 63 [2023-12-25 06:02:55,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:02:55,408 INFO L495 AbstractCegarLoop]: Abstraction has 924 states and 1095 transitions. [2023-12-25 06:02:55,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 4 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2023-12-25 06:02:55,409 INFO L276 IsEmpty]: Start isEmpty. Operand 924 states and 1095 transitions. [2023-12-25 06:02:55,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-25 06:02:55,409 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:02:55,410 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-25 06:02:55,414 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2023-12-25 06:02:55,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 06:02:55,612 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:02:55,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:02:55,613 INFO L85 PathProgramCache]: Analyzing trace with hash -303298560, now seen corresponding path program 1 times [2023-12-25 06:02:55,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:02:55,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [922619229] [2023-12-25 06:02:55,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 06:02:55,613 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 06:02:55,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:02:55,614 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 06:02:55,622 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-25 06:02:55,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 06:02:55,657 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-25 06:02:55,659 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:02:55,726 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-25 06:02:55,727 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 06:02:55,894 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 5 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-25 06:02:55,894 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:02:55,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [922619229] [2023-12-25 06:02:55,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [922619229] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 06:02:55,895 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 06:02:55,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 12 [2023-12-25 06:02:55,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129565331] [2023-12-25 06:02:55,895 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 06:02:55,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-25 06:02:55,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:02:55,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-25 06:02:55,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-12-25 06:02:55,896 INFO L87 Difference]: Start difference. First operand 924 states and 1095 transitions. Second operand has 12 states, 12 states have (on average 6.5) internal successors, (78), 11 states have internal predecessors, (78), 7 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (10), 5 states have call predecessors, (10), 7 states have call successors, (10) [2023-12-25 06:02:56,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:02:56,495 INFO L93 Difference]: Finished difference Result 2388 states and 2937 transitions. [2023-12-25 06:02:56,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-25 06:02:56,496 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.5) internal successors, (78), 11 states have internal predecessors, (78), 7 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (10), 5 states have call predecessors, (10), 7 states have call successors, (10) Word has length 64 [2023-12-25 06:02:56,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:02:56,502 INFO L225 Difference]: With dead ends: 2388 [2023-12-25 06:02:56,502 INFO L226 Difference]: Without dead ends: 1544 [2023-12-25 06:02:56,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=148, Invalid=452, Unknown=0, NotChecked=0, Total=600 [2023-12-25 06:02:56,505 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 567 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 589 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 579 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 06:02:56,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [579 Valid, 395 Invalid, 791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 589 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 06:02:56,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1544 states. [2023-12-25 06:02:56,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1544 to 1492. [2023-12-25 06:02:56,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1492 states, 1096 states have (on average 1.2253649635036497) internal successors, (1343), 1168 states have internal predecessors, (1343), 192 states have call successors, (192), 188 states have call predecessors, (192), 203 states have return successors, (277), 190 states have call predecessors, (277), 192 states have call successors, (277) [2023-12-25 06:02:56,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1492 states to 1492 states and 1812 transitions. [2023-12-25 06:02:56,600 INFO L78 Accepts]: Start accepts. Automaton has 1492 states and 1812 transitions. Word has length 64 [2023-12-25 06:02:56,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:02:56,600 INFO L495 AbstractCegarLoop]: Abstraction has 1492 states and 1812 transitions. [2023-12-25 06:02:56,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.5) internal successors, (78), 11 states have internal predecessors, (78), 7 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (10), 5 states have call predecessors, (10), 7 states have call successors, (10) [2023-12-25 06:02:56,600 INFO L276 IsEmpty]: Start isEmpty. Operand 1492 states and 1812 transitions. [2023-12-25 06:02:56,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-25 06:02:56,601 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:02:56,601 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-25 06:02:56,619 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-12-25 06:02:56,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 06:02:56,804 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:02:56,805 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:02:56,805 INFO L85 PathProgramCache]: Analyzing trace with hash -890104574, now seen corresponding path program 1 times [2023-12-25 06:02:56,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:02:56,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [370005173] [2023-12-25 06:02:56,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 06:02:56,806 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 06:02:56,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:02:56,807 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 06:02:56,810 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-25 06:02:56,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 06:02:56,852 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-25 06:02:56,854 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:02:56,940 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-25 06:02:56,940 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 06:02:57,101 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-25 06:02:57,101 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:02:57,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [370005173] [2023-12-25 06:02:57,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [370005173] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 06:02:57,101 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 06:02:57,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 13 [2023-12-25 06:02:57,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239907749] [2023-12-25 06:02:57,102 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 06:02:57,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-25 06:02:57,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:02:57,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-25 06:02:57,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2023-12-25 06:02:57,103 INFO L87 Difference]: Start difference. First operand 1492 states and 1812 transitions. Second operand has 13 states, 13 states have (on average 6.615384615384615) internal successors, (86), 12 states have internal predecessors, (86), 6 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2023-12-25 06:02:57,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:02:57,716 INFO L93 Difference]: Finished difference Result 3953 states and 5032 transitions. [2023-12-25 06:02:57,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-25 06:02:57,717 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.615384615384615) internal successors, (86), 12 states have internal predecessors, (86), 6 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) Word has length 64 [2023-12-25 06:02:57,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:02:57,726 INFO L225 Difference]: With dead ends: 3953 [2023-12-25 06:02:57,727 INFO L226 Difference]: Without dead ends: 2541 [2023-12-25 06:02:57,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=201, Invalid=611, Unknown=0, NotChecked=0, Total=812 [2023-12-25 06:02:57,730 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 473 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 480 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 06:02:57,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [480 Valid, 412 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 06:02:57,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2541 states. [2023-12-25 06:02:57,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2541 to 2223. [2023-12-25 06:02:57,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2223 states, 1633 states have (on average 1.232088181261482) internal successors, (2012), 1734 states have internal predecessors, (2012), 297 states have call successors, (297), 295 states have call predecessors, (297), 292 states have return successors, (455), 268 states have call predecessors, (455), 297 states have call successors, (455) [2023-12-25 06:02:57,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2223 states to 2223 states and 2764 transitions. [2023-12-25 06:02:57,877 INFO L78 Accepts]: Start accepts. Automaton has 2223 states and 2764 transitions. Word has length 64 [2023-12-25 06:02:57,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:02:57,878 INFO L495 AbstractCegarLoop]: Abstraction has 2223 states and 2764 transitions. [2023-12-25 06:02:57,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.615384615384615) internal successors, (86), 12 states have internal predecessors, (86), 6 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2023-12-25 06:02:57,878 INFO L276 IsEmpty]: Start isEmpty. Operand 2223 states and 2764 transitions. [2023-12-25 06:02:57,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-12-25 06:02:57,884 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:02:57,884 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-25 06:02:57,902 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-12-25 06:02:58,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 06:02:58,086 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:02:58,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:02:58,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1245413870, now seen corresponding path program 1 times [2023-12-25 06:02:58,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:02:58,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1976125405] [2023-12-25 06:02:58,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 06:02:58,088 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 06:02:58,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:02:58,089 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 06:02:58,113 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-25 06:02:58,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 06:02:58,164 INFO L262 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 06:02:58,167 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:02:58,181 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2023-12-25 06:02:58,181 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 06:02:58,181 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:02:58,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1976125405] [2023-12-25 06:02:58,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1976125405] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 06:02:58,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 06:02:58,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 06:02:58,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948908541] [2023-12-25 06:02:58,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 06:02:58,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 06:02:58,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:02:58,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 06:02:58,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 06:02:58,183 INFO L87 Difference]: Start difference. First operand 2223 states and 2764 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-25 06:02:58,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:02:58,231 INFO L93 Difference]: Finished difference Result 2443 states and 3021 transitions. [2023-12-25 06:02:58,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 06:02:58,231 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 165 [2023-12-25 06:02:58,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:02:58,233 INFO L225 Difference]: With dead ends: 2443 [2023-12-25 06:02:58,233 INFO L226 Difference]: Without dead ends: 0 [2023-12-25 06:02:58,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 06:02:58,237 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 1 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 06:02:58,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 155 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 06:02:58,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-25 06:02:58,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-25 06:02:58,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 06:02:58,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-25 06:02:58,238 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 165 [2023-12-25 06:02:58,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:02:58,238 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-25 06:02:58,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-25 06:02:58,238 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-25 06:02:58,238 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-25 06:02:58,240 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-25 06:02:58,245 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2023-12-25 06:02:58,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 06:02:58,445 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-25 06:02:59,134 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 88 94) no Hoare annotation was computed. [2023-12-25 06:02:59,134 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 88 94) the Hoare annotation is: true [2023-12-25 06:02:59,134 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 388 399) the Hoare annotation is: (let ((.cse0 (not (= (_ bv0 32) ~pumpRunning~0))) (.cse1 (not (= ~systemActive~0 (_ bv1 32)))) (.cse2 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse3 (not (= ~waterLevel~0 (_ bv2 32)))) (.cse4 (not (= |old(~methaneLevelCritical~0)| (_ bv0 32))))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse1 .cse2 .cse4 (not (= ~waterLevel~0 (_ bv1 32)))) (or .cse1 .cse2 .cse3 .cse4 (not (= (_ bv1 32) ~pumpRunning~0))))) [2023-12-25 06:02:59,134 INFO L899 garLoopResultBuilder]: For program point L392-1(lines 388 399) no Hoare annotation was computed. [2023-12-25 06:02:59,134 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 388 399) no Hoare annotation was computed. [2023-12-25 06:02:59,135 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 870 899) no Hoare annotation was computed. [2023-12-25 06:02:59,135 INFO L899 garLoopResultBuilder]: For program point L895(lines 870 899) no Hoare annotation was computed. [2023-12-25 06:02:59,135 INFO L899 garLoopResultBuilder]: For program point L891(line 891) no Hoare annotation was computed. [2023-12-25 06:02:59,135 INFO L899 garLoopResultBuilder]: For program point L884(lines 884 888) no Hoare annotation was computed. [2023-12-25 06:02:59,135 INFO L902 garLoopResultBuilder]: At program point L884-1(lines 884 888) the Hoare annotation is: true [2023-12-25 06:02:59,135 INFO L902 garLoopResultBuilder]: At program point L880-2(lines 880 894) the Hoare annotation is: true [2023-12-25 06:02:59,135 INFO L902 garLoopResultBuilder]: At program point L876(line 876) the Hoare annotation is: true [2023-12-25 06:02:59,135 INFO L899 garLoopResultBuilder]: For program point L876-1(line 876) no Hoare annotation was computed. [2023-12-25 06:02:59,135 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 870 899) the Hoare annotation is: true [2023-12-25 06:02:59,135 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 400 408) the Hoare annotation is: true [2023-12-25 06:02:59,135 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 400 408) no Hoare annotation was computed. [2023-12-25 06:02:59,135 INFO L899 garLoopResultBuilder]: For program point L126(lines 126 143) no Hoare annotation was computed. [2023-12-25 06:02:59,135 INFO L899 garLoopResultBuilder]: For program point L337(lines 337 357) no Hoare annotation was computed. [2023-12-25 06:02:59,135 INFO L899 garLoopResultBuilder]: For program point L969(line 969) no Hoare annotation was computed. [2023-12-25 06:02:59,135 INFO L899 garLoopResultBuilder]: For program point L247(lines 247 251) no Hoare annotation was computed. [2023-12-25 06:02:59,135 INFO L899 garLoopResultBuilder]: For program point L247-2(lines 247 251) no Hoare annotation was computed. [2023-12-25 06:02:59,136 INFO L895 garLoopResultBuilder]: At program point L136(line 136) the Hoare annotation is: (let ((.cse2 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse0 (not (= ~systemActive~0 (_ bv1 32)))) (.cse1 (not (= |old(~pumpRunning~0)| (_ bv0 32))))) (and (or .cse0 .cse1 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (or .cse2 .cse0 (not (= |old(~pumpRunning~0)| (_ bv1 32)))) (or .cse2 .cse0 .cse1))) [2023-12-25 06:02:59,136 INFO L899 garLoopResultBuilder]: For program point L347(lines 347 353) no Hoare annotation was computed. [2023-12-25 06:02:59,136 INFO L899 garLoopResultBuilder]: For program point L343(lines 343 356) no Hoare annotation was computed. [2023-12-25 06:02:59,136 INFO L899 garLoopResultBuilder]: For program point L343-1(lines 328 360) no Hoare annotation was computed. [2023-12-25 06:02:59,136 INFO L899 garLoopResultBuilder]: For program point L368(lines 368 372) no Hoare annotation was computed. [2023-12-25 06:02:59,138 INFO L895 garLoopResultBuilder]: At program point L335(line 335) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse3 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse0 (and (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0))) (.cse1 (not (= ~systemActive~0 (_ bv1 32))))) (and (or .cse0 .cse1 .cse2 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (or .cse3 .cse1 .cse2 (and (= (_ bv1 32) ~pumpRunning~0) (= ~waterLevel~0 (_ bv2 32)))) (or .cse3 .cse0 .cse1 (not (= |old(~pumpRunning~0)| (_ bv1 32)))))) [2023-12-25 06:02:59,138 INFO L899 garLoopResultBuilder]: For program point L368-2(lines 364 375) no Hoare annotation was computed. [2023-12-25 06:02:59,138 INFO L899 garLoopResultBuilder]: For program point L335-1(line 335) no Hoare annotation was computed. [2023-12-25 06:02:59,138 INFO L895 garLoopResultBuilder]: At program point L141(line 141) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse3 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse1 (not (= ~systemActive~0 (_ bv1 32))))) (and (or (and (= ~waterLevel~0 (_ bv1 32)) .cse0) .cse1 .cse2 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (or .cse3 .cse1 .cse2 (and (= ~waterLevel~0 (_ bv2 32)) .cse0)) (or .cse3 .cse1 (not (= |old(~pumpRunning~0)| (_ bv1 32)))))) [2023-12-25 06:02:59,139 INFO L899 garLoopResultBuilder]: For program point L141-1(lines 122 146) no Hoare annotation was computed. [2023-12-25 06:02:59,139 INFO L899 garLoopResultBuilder]: For program point L75-1(lines 75 81) no Hoare annotation was computed. [2023-12-25 06:02:59,139 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 64 87) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse3 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse1 (not (= ~systemActive~0 (_ bv1 32)))) (.cse4 (= ~waterLevel~0 (_ bv2 32)))) (and (or (and (= ~waterLevel~0 (_ bv1 32)) .cse0) .cse1 .cse2 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (or .cse3 .cse1 .cse2 (and .cse4 .cse0)) (or .cse3 .cse1 (not (= |old(~pumpRunning~0)| (_ bv1 32))) (and (= (_ bv1 32) ~pumpRunning~0) .cse4)))) [2023-12-25 06:02:59,139 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 64 87) no Hoare annotation was computed. [2023-12-25 06:02:59,139 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 969) no Hoare annotation was computed. [2023-12-25 06:02:59,139 INFO L899 garLoopResultBuilder]: For program point L68-1(lines 67 86) no Hoare annotation was computed. [2023-12-25 06:02:59,139 INFO L899 garLoopResultBuilder]: For program point L130(lines 130 138) no Hoare annotation was computed. [2023-12-25 06:02:59,139 INFO L899 garLoopResultBuilder]: For program point L320(lines 261 324) no Hoare annotation was computed. [2023-12-25 06:02:59,139 INFO L895 garLoopResultBuilder]: At program point L283(line 283) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 (_ bv1 32))) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| (_ bv0 32)))) (or (and .cse0 (= ~waterLevel~0 (_ bv1 32)) .cse1 (= (_ bv0 32) ~pumpRunning~0)) (and (= (_ bv1 32) ~pumpRunning~0) (= ~waterLevel~0 (_ bv2 32)) .cse0 .cse1))) [2023-12-25 06:02:59,139 INFO L895 garLoopResultBuilder]: At program point L317(lines 270 318) the Hoare annotation is: false [2023-12-25 06:02:59,139 INFO L899 garLoopResultBuilder]: For program point L272(lines 271 316) no Hoare annotation was computed. [2023-12-25 06:02:59,139 INFO L899 garLoopResultBuilder]: For program point L301(lines 301 312) no Hoare annotation was computed. [2023-12-25 06:02:59,139 INFO L895 garLoopResultBuilder]: At program point L293(line 293) the Hoare annotation is: (let ((.cse3 (= ~waterLevel~0 (_ bv2 32))) (.cse0 (= ~systemActive~0 (_ bv1 32))) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| (_ bv0 32))) (.cse2 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 (= ~waterLevel~0 (_ bv1 32)) .cse1 .cse2) (and (= (_ bv1 32) ~pumpRunning~0) .cse3 .cse0 .cse1) (and .cse3 .cse0 .cse1 .cse2))) [2023-12-25 06:02:59,139 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-25 06:02:59,140 INFO L895 garLoopResultBuilder]: At program point L314(lines 271 316) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 (_ bv1 32))) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| (_ bv0 32)))) (or (and .cse0 (= ~waterLevel~0 (_ bv1 32)) .cse1 (= (_ bv0 32) ~pumpRunning~0)) (and (= (_ bv1 32) ~pumpRunning~0) (= ~waterLevel~0 (_ bv2 32)) .cse0 .cse1))) [2023-12-25 06:02:59,140 INFO L899 garLoopResultBuilder]: For program point L281(lines 281 287) no Hoare annotation was computed. [2023-12-25 06:02:59,140 INFO L899 garLoopResultBuilder]: For program point L281-1(lines 281 287) no Hoare annotation was computed. [2023-12-25 06:02:59,140 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-25 06:02:59,140 INFO L899 garLoopResultBuilder]: For program point L951(lines 951 958) no Hoare annotation was computed. [2023-12-25 06:02:59,140 INFO L899 garLoopResultBuilder]: For program point L951-2(lines 951 958) no Hoare annotation was computed. [2023-12-25 06:02:59,140 INFO L899 garLoopResultBuilder]: For program point L307(lines 307 311) no Hoare annotation was computed. [2023-12-25 06:02:59,140 INFO L895 garLoopResultBuilder]: At program point L307-2(lines 301 312) the Hoare annotation is: (let ((.cse3 (= ~waterLevel~0 (_ bv2 32))) (.cse0 (= ~systemActive~0 (_ bv1 32))) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| (_ bv0 32))) (.cse2 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 (= ~waterLevel~0 (_ bv1 32)) .cse1 .cse2) (and (= (_ bv1 32) ~pumpRunning~0) .cse3 .cse0 .cse1) (and .cse3 .cse0 .cse1 .cse2))) [2023-12-25 06:02:59,140 INFO L899 garLoopResultBuilder]: For program point L291(lines 291 297) no Hoare annotation was computed. [2023-12-25 06:02:59,140 INFO L899 garLoopResultBuilder]: For program point L291-1(lines 291 297) no Hoare annotation was computed. [2023-12-25 06:02:59,140 INFO L895 garLoopResultBuilder]: At program point L110(line 110) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 (_ bv1 32)))) (.cse1 (not (= |old(~pumpRunning~0)| (_ bv0 32))))) (and (or .cse0 .cse1 (not (= ~waterLevel~0 (_ bv1 32))) (and (= |processEnvironment__wrappee__highWaterSensor_~tmp~0#1| (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0))) (or .cse0 (not (= ~waterLevel~0 (_ bv2 32))) .cse1))) [2023-12-25 06:02:59,140 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 96 120) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 (_ bv1 32)))) (.cse1 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse2 (= (_ bv0 32) ~pumpRunning~0))) (and (or .cse0 (not (= ~waterLevel~0 (_ bv2 32))) .cse1 .cse2) (or .cse0 .cse1 (not (= ~waterLevel~0 (_ bv1 32))) .cse2))) [2023-12-25 06:02:59,140 INFO L899 garLoopResultBuilder]: For program point L104(lines 104 112) no Hoare annotation was computed. [2023-12-25 06:02:59,140 INFO L899 garLoopResultBuilder]: For program point L100(lines 100 117) no Hoare annotation was computed. [2023-12-25 06:02:59,140 INFO L899 garLoopResultBuilder]: For program point L228(lines 228 232) no Hoare annotation was computed. [2023-12-25 06:02:59,140 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDry_returnLabel#1(lines 441 454) no Hoare annotation was computed. [2023-12-25 06:02:59,141 INFO L899 garLoopResultBuilder]: For program point L228-2(lines 228 232) no Hoare annotation was computed. [2023-12-25 06:02:59,141 INFO L899 garLoopResultBuilder]: For program point L445(lines 445 451) no Hoare annotation was computed. [2023-12-25 06:02:59,141 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 96 120) no Hoare annotation was computed. [2023-12-25 06:02:59,141 INFO L895 garLoopResultBuilder]: At program point L115(line 115) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 (_ bv1 32)))) (.cse1 (not (= |old(~pumpRunning~0)| (_ bv0 32))))) (and (or .cse0 .cse1 (not (= ~waterLevel~0 (_ bv1 32)))) (or .cse0 (not (= ~waterLevel~0 (_ bv2 32))) .cse1))) [2023-12-25 06:02:59,141 INFO L899 garLoopResultBuilder]: For program point L115-1(lines 96 120) no Hoare annotation was computed. [2023-12-25 06:02:59,141 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 376 387) no Hoare annotation was computed. [2023-12-25 06:02:59,141 INFO L899 garLoopResultBuilder]: For program point L380-1(lines 376 387) no Hoare annotation was computed. [2023-12-25 06:02:59,141 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 376 387) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 (_ bv1 32))))) (and (or (not (= (_ bv2 32) |old(~waterLevel~0)|)) (= ~waterLevel~0 (_ bv2 32)) .cse0 (not (= (_ bv1 32) ~pumpRunning~0))) (or (not (= (_ bv0 32) ~pumpRunning~0)) .cse0 (not (= (_ bv1 32) |old(~waterLevel~0)|)) (= ~waterLevel~0 (_ bv1 32))))) [2023-12-25 06:02:59,143 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 06:02:59,144 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-25 06:02:59,153 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.12 06:02:59 BoogieIcfgContainer [2023-12-25 06:02:59,153 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-25 06:02:59,154 INFO L158 Benchmark]: Toolchain (without parser) took 10326.67ms. Allocated memory was 233.8MB in the beginning and 337.6MB in the end (delta: 103.8MB). Free memory was 186.8MB in the beginning and 160.0MB in the end (delta: 26.8MB). Peak memory consumption was 132.0MB. Max. memory is 8.0GB. [2023-12-25 06:02:59,154 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 187.7MB. Free memory is still 143.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-25 06:02:59,155 INFO L158 Benchmark]: CACSL2BoogieTranslator took 446.38ms. Allocated memory is still 233.8MB. Free memory was 186.8MB in the beginning and 160.6MB in the end (delta: 26.2MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. [2023-12-25 06:02:59,155 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.80ms. Allocated memory is still 233.8MB. Free memory was 160.6MB in the beginning and 158.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-25 06:02:59,155 INFO L158 Benchmark]: Boogie Preprocessor took 38.79ms. Allocated memory is still 233.8MB. Free memory was 158.5MB in the beginning and 155.8MB in the end (delta: 2.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-25 06:02:59,155 INFO L158 Benchmark]: RCFGBuilder took 431.56ms. Allocated memory is still 233.8MB. Free memory was 155.8MB in the beginning and 203.8MB in the end (delta: -48.0MB). Peak memory consumption was 31.6MB. Max. memory is 8.0GB. [2023-12-25 06:02:59,155 INFO L158 Benchmark]: TraceAbstraction took 9363.23ms. Allocated memory was 233.8MB in the beginning and 337.6MB in the end (delta: 103.8MB). Free memory was 203.2MB in the beginning and 160.0MB in the end (delta: 43.2MB). Peak memory consumption was 147.5MB. Max. memory is 8.0GB. [2023-12-25 06:02:59,158 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 187.7MB. Free memory is still 143.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 446.38ms. Allocated memory is still 233.8MB. Free memory was 186.8MB in the beginning and 160.6MB in the end (delta: 26.2MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 37.80ms. Allocated memory is still 233.8MB. Free memory was 160.6MB in the beginning and 158.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 38.79ms. Allocated memory is still 233.8MB. Free memory was 158.5MB in the beginning and 155.8MB in the end (delta: 2.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 431.56ms. Allocated memory is still 233.8MB. Free memory was 155.8MB in the beginning and 203.8MB in the end (delta: -48.0MB). Peak memory consumption was 31.6MB. Max. memory is 8.0GB. * TraceAbstraction took 9363.23ms. Allocated memory was 233.8MB in the beginning and 337.6MB in the end (delta: 103.8MB). Free memory was 203.2MB in the beginning and 160.0MB in the end (delta: 43.2MB). Peak memory consumption was 147.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [49] - GenericResultAtLocation [Line: 257]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [257] - GenericResultAtLocation [Line: 325]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [325] - GenericResultAtLocation [Line: 361]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [361] - GenericResultAtLocation [Line: 464]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [464] - GenericResultAtLocation [Line: 502]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [502] - GenericResultAtLocation [Line: 868]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [868] - GenericResultAtLocation [Line: 964]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [964] * 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: 969]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.3s, OverallIterations: 17, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1759 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1716 mSDsluCounter, 3406 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2267 mSDsCounter, 479 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2343 IncrementalHoareTripleChecker+Invalid, 2822 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 479 mSolverCounterUnsat, 1139 mSDtfsCounter, 2343 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 955 GetRequests, 860 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2223occurred in iteration=16, InterpolantAutomatonStates: 117, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 17 MinimizatonAttempts, 441 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 20 LocationsWithAnnotation, 1732 PreInvPairs, 1770 NumberOfFragments, 545 HoareAnnotationTreeSize, 1732 FormulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 20 FormulaSimplificationsInter, 1072 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 792 NumberOfCodeBlocks, 792 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 901 ConstructedInterpolants, 0 QuantifiedInterpolants, 1860 SizeOfPredicates, 24 NumberOfNonLiveVariables, 2005 ConjunctsInSsa, 89 ConjunctsInUnsatCore, 19 InterpolantComputations, 15 PerfectInterpolantSequences, 341/375 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: 270]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 880]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 271]: Loop Invariant Derived loop invariant: (((((systemActive == 1) && (waterLevel == 1)) && (splverifierCounter == 0)) && (0 == pumpRunning)) || ((((1 == pumpRunning) && (waterLevel == 2)) && (systemActive == 1)) && (splverifierCounter == 0))) RESULT: Ultimate proved your program to be correct! [2023-12-25 06:02:59,181 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...