/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_spec2_product41.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 17:40:00,207 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 17:40:00,253 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 17:40:00,256 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 17:40:00,256 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 17:40:00,269 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 17:40:00,269 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 17:40:00,270 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 17:40:00,270 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 17:40:00,270 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 17:40:00,270 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 17:40:00,271 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 17:40:00,271 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 17:40:00,271 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 17:40:00,271 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 17:40:00,272 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 17:40:00,272 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 17:40:00,272 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 17:40:00,272 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 17:40:00,273 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 17:40:00,273 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 17:40:00,273 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 17:40:00,273 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 17:40:00,274 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 17:40:00,274 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 17:40:00,274 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 17:40:00,274 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 17:40:00,275 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 17:40:00,275 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 17:40:00,275 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 17:40:00,275 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 17:40:00,276 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 17:40:00,276 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 17:40:00,276 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 17:40:00,276 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:40:00,277 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 17:40:00,277 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 17:40:00,277 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 17:40:00,277 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 17:40:00,278 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 17:40:00,278 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 17:40:00,278 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 17:40:00,278 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 17:40:00,278 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 17:40:00,279 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 17:40:00,279 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 17:40:00,279 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 17:40:00,427 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 17:40:00,440 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 17:40:00,441 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 17:40:00,442 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 17:40:00,442 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 17:40:00,443 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product41.cil.c [2023-12-16 17:40:01,648 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 17:40:01,989 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 17:40:01,989 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product41.cil.c [2023-12-16 17:40:02,007 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a964e4d0/8121b543720b4a83a7d80eac8c433e27/FLAGd5a0042c9 [2023-12-16 17:40:02,020 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a964e4d0/8121b543720b4a83a7d80eac8c433e27 [2023-12-16 17:40:02,023 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 17:40:02,024 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 17:40:02,025 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 17:40:02,025 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 17:40:02,039 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 17:40:02,040 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:40:02" (1/1) ... [2023-12-16 17:40:02,041 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56594685 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:40:02, skipping insertion in model container [2023-12-16 17:40:02,041 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:40:02" (1/1) ... [2023-12-16 17:40:02,125 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 17:40:02,401 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product41.cil.c[17041,17054] [2023-12-16 17:40:02,406 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:40:02,419 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-16 17:40:02,426 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 17:40:02,481 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product41.cil.c[17041,17054] [2023-12-16 17:40:02,483 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:40:02,497 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 17:40:02,504 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [49] [2023-12-16 17:40:02,505 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [91] [2023-12-16 17:40:02,505 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [457] [2023-12-16 17:40:02,505 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [634] [2023-12-16 17:40:02,505 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [731] [2023-12-16 17:40:02,505 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [797] [2023-12-16 17:40:02,505 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [835] [2023-12-16 17:40:02,505 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [844] [2023-12-16 17:40:02,554 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product41.cil.c[17041,17054] [2023-12-16 17:40:02,556 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:40:02,580 INFO L206 MainTranslator]: Completed translation [2023-12-16 17:40:02,580 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:40:02 WrapperNode [2023-12-16 17:40:02,580 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 17:40:02,582 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 17:40:02,582 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 17:40:02,582 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 17:40:02,586 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:40:02" (1/1) ... [2023-12-16 17:40:02,596 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:40:02" (1/1) ... [2023-12-16 17:40:02,613 INFO L138 Inliner]: procedures = 56, calls = 96, calls flagged for inlining = 22, calls inlined = 19, statements flattened = 178 [2023-12-16 17:40:02,613 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 17:40:02,614 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 17:40:02,614 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 17:40:02,614 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 17:40:02,621 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:40:02" (1/1) ... [2023-12-16 17:40:02,621 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:40:02" (1/1) ... [2023-12-16 17:40:02,624 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:40:02" (1/1) ... [2023-12-16 17:40:02,638 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 17:40:02,639 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:40:02" (1/1) ... [2023-12-16 17:40:02,639 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:40:02" (1/1) ... [2023-12-16 17:40:02,655 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:40:02" (1/1) ... [2023-12-16 17:40:02,658 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:40:02" (1/1) ... [2023-12-16 17:40:02,659 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:40:02" (1/1) ... [2023-12-16 17:40:02,660 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:40:02" (1/1) ... [2023-12-16 17:40:02,661 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 17:40:02,662 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 17:40:02,662 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 17:40:02,662 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 17:40:02,664 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:40:02" (1/1) ... [2023-12-16 17:40:02,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:40:02,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 17:40:02,701 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 17:40:02,717 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 17:40:02,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 17:40:02,734 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-12-16 17:40:02,735 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-12-16 17:40:02,735 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-16 17:40:02,735 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-16 17:40:02,735 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-16 17:40:02,735 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-16 17:40:02,735 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-12-16 17:40:02,735 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-12-16 17:40:02,735 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-12-16 17:40:02,736 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-12-16 17:40:02,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 17:40:02,736 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-12-16 17:40:02,738 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-12-16 17:40:02,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 17:40:02,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 17:40:02,816 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 17:40:02,823 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 17:40:03,036 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 17:40:03,137 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 17:40:03,137 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-16 17:40:03,138 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:40:03 BoogieIcfgContainer [2023-12-16 17:40:03,138 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 17:40:03,139 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 17:40:03,139 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 17:40:03,141 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 17:40:03,141 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 05:40:02" (1/3) ... [2023-12-16 17:40:03,142 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6764788d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:40:03, skipping insertion in model container [2023-12-16 17:40:03,142 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:40:02" (2/3) ... [2023-12-16 17:40:03,142 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6764788d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:40:03, skipping insertion in model container [2023-12-16 17:40:03,142 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:40:03" (3/3) ... [2023-12-16 17:40:03,143 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product41.cil.c [2023-12-16 17:40:03,158 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 17:40:03,158 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 17:40:03,195 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 17:40:03,199 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;@507c3b2b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 17:40:03,199 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 17:40:03,202 INFO L276 IsEmpty]: Start isEmpty. Operand has 63 states, 45 states have (on average 1.5555555555555556) internal successors, (70), 51 states have internal predecessors, (70), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-16 17:40:03,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-16 17:40:03,208 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:40:03,208 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:40:03,208 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:40:03,213 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:40:03,214 INFO L85 PathProgramCache]: Analyzing trace with hash -749555829, now seen corresponding path program 1 times [2023-12-16 17:40:03,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:40:03,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1365665318] [2023-12-16 17:40:03,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:40:03,222 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:40:03,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:40:03,224 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:40:03,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 17:40:03,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:40:03,279 INFO L262 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 17:40:03,282 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:40:03,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:40:03,296 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:40:03,297 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:40:03,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1365665318] [2023-12-16 17:40:03,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1365665318] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:40:03,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:40:03,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:40:03,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310911925] [2023-12-16 17:40:03,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:40:03,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 17:40:03,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:40:03,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 17:40:03,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 17:40:03,319 INFO L87 Difference]: Start difference. First operand has 63 states, 45 states have (on average 1.5555555555555556) internal successors, (70), 51 states have internal predecessors, (70), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 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) [2023-12-16 17:40:03,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:40:03,349 INFO L93 Difference]: Finished difference Result 124 states and 181 transitions. [2023-12-16 17:40:03,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 17:40:03,351 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 [2023-12-16 17:40:03,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:40:03,356 INFO L225 Difference]: With dead ends: 124 [2023-12-16 17:40:03,356 INFO L226 Difference]: Without dead ends: 58 [2023-12-16 17:40:03,358 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 [2023-12-16 17:40:03,360 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:40:03,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 73 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:40:03,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2023-12-16 17:40:03,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2023-12-16 17:40:03,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 42 states have (on average 1.4285714285714286) internal successors, (60), 47 states have internal predecessors, (60), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-16 17:40:03,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 79 transitions. [2023-12-16 17:40:03,390 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 79 transitions. Word has length 17 [2023-12-16 17:40:03,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:40:03,390 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 79 transitions. [2023-12-16 17:40:03,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-16 17:40:03,391 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 79 transitions. [2023-12-16 17:40:03,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-16 17:40:03,393 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:40:03,394 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:40:03,396 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-16 17:40:03,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:40:03,597 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:40:03,597 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:40:03,597 INFO L85 PathProgramCache]: Analyzing trace with hash -60872786, now seen corresponding path program 1 times [2023-12-16 17:40:03,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:40:03,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1788554161] [2023-12-16 17:40:03,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:40:03,599 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:40:03,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:40:03,600 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:40:03,621 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 17:40:03,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:40:03,638 INFO L262 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:40:03,639 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:40:03,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:40:03,653 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:40:03,653 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:40:03,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1788554161] [2023-12-16 17:40:03,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1788554161] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:40:03,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:40:03,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:40:03,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131594016] [2023-12-16 17:40:03,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:40:03,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:40:03,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:40:03,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:40:03,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:40:03,655 INFO L87 Difference]: Start difference. First operand 58 states and 79 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) [2023-12-16 17:40:03,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:40:03,693 INFO L93 Difference]: Finished difference Result 89 states and 121 transitions. [2023-12-16 17:40:03,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:40:03,695 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 [2023-12-16 17:40:03,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:40:03,695 INFO L225 Difference]: With dead ends: 89 [2023-12-16 17:40:03,695 INFO L226 Difference]: Without dead ends: 50 [2023-12-16 17:40:03,696 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 [2023-12-16 17:40:03,697 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 11 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:40:03,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 104 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:40:03,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-12-16 17:40:03,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2023-12-16 17:40:03,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 37 states have (on average 1.4594594594594594) internal successors, (54), 42 states have internal predecessors, (54), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-16 17:40:03,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 68 transitions. [2023-12-16 17:40:03,704 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 68 transitions. Word has length 18 [2023-12-16 17:40:03,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:40:03,705 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 68 transitions. [2023-12-16 17:40:03,705 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) [2023-12-16 17:40:03,705 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 68 transitions. [2023-12-16 17:40:03,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-16 17:40:03,705 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:40:03,705 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] [2023-12-16 17:40:03,716 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 (3)] Ended with exit code 0 [2023-12-16 17:40:03,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:40:03,910 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:40:03,911 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:40:03,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1368154766, now seen corresponding path program 1 times [2023-12-16 17:40:03,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:40:03,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [957002624] [2023-12-16 17:40:03,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:40:03,911 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:40:03,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:40:03,960 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:40:03,961 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-16 17:40:04,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:40:04,021 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:40:04,022 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:40:04,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:40:04,050 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:40:04,050 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:40:04,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [957002624] [2023-12-16 17:40:04,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [957002624] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:40:04,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:40:04,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:40:04,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208034961] [2023-12-16 17:40:04,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:40:04,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:40:04,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:40:04,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:40:04,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:40:04,051 INFO L87 Difference]: Start difference. First operand 50 states and 68 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) [2023-12-16 17:40:04,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:40:04,081 INFO L93 Difference]: Finished difference Result 98 states and 135 transitions. [2023-12-16 17:40:04,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:40:04,082 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 [2023-12-16 17:40:04,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:40:04,083 INFO L225 Difference]: With dead ends: 98 [2023-12-16 17:40:04,083 INFO L226 Difference]: Without dead ends: 50 [2023-12-16 17:40:04,084 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 [2023-12-16 17:40:04,085 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 56 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:40:04,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 57 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:40:04,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-12-16 17:40:04,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2023-12-16 17:40:04,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 37 states have (on average 1.4324324324324325) internal successors, (53), 42 states have internal predecessors, (53), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-16 17:40:04,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 67 transitions. [2023-12-16 17:40:04,090 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 67 transitions. Word has length 21 [2023-12-16 17:40:04,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:40:04,090 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 67 transitions. [2023-12-16 17:40:04,090 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) [2023-12-16 17:40:04,090 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 67 transitions. [2023-12-16 17:40:04,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-16 17:40:04,091 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:40:04,091 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] [2023-12-16 17:40:04,097 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-16 17:40:04,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:40:04,295 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:40:04,296 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:40:04,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1931437043, now seen corresponding path program 1 times [2023-12-16 17:40:04,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:40:04,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2058940745] [2023-12-16 17:40:04,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:40:04,296 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:40:04,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:40:04,297 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:40:04,349 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-16 17:40:04,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:40:04,376 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:40:04,377 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:40:04,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:40:04,418 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:40:04,418 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:40:04,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2058940745] [2023-12-16 17:40:04,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2058940745] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:40:04,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:40:04,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:40:04,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338673221] [2023-12-16 17:40:04,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:40:04,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:40:04,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:40:04,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:40:04,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:40:04,420 INFO L87 Difference]: Start difference. First operand 50 states and 67 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-16 17:40:04,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:40:04,466 INFO L93 Difference]: Finished difference Result 134 states and 181 transitions. [2023-12-16 17:40:04,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:40:04,467 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 26 [2023-12-16 17:40:04,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:40:04,468 INFO L225 Difference]: With dead ends: 134 [2023-12-16 17:40:04,468 INFO L226 Difference]: Without dead ends: 86 [2023-12-16 17:40:04,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:40:04,469 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 48 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:40:04,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 108 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:40:04,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2023-12-16 17:40:04,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 84. [2023-12-16 17:40:04,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 62 states have (on average 1.403225806451613) internal successors, (87), 69 states have internal predecessors, (87), 11 states have call successors, (11), 10 states have call predecessors, (11), 10 states have return successors, (13), 11 states have call predecessors, (13), 11 states have call successors, (13) [2023-12-16 17:40:04,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 111 transitions. [2023-12-16 17:40:04,479 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 111 transitions. Word has length 26 [2023-12-16 17:40:04,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:40:04,479 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 111 transitions. [2023-12-16 17:40:04,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-16 17:40:04,479 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 111 transitions. [2023-12-16 17:40:04,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-16 17:40:04,496 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:40:04,496 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:40:04,510 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 [2023-12-16 17:40:04,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:40:04,698 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:40:04,699 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:40:04,699 INFO L85 PathProgramCache]: Analyzing trace with hash 618374539, now seen corresponding path program 1 times [2023-12-16 17:40:04,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:40:04,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1223061091] [2023-12-16 17:40:04,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:40:04,699 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:40:04,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:40:04,701 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:40:04,705 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-16 17:40:04,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:40:04,769 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:40:04,773 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:40:04,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:40:04,793 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:40:04,793 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:40:04,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1223061091] [2023-12-16 17:40:04,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1223061091] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:40:04,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:40:04,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:40:04,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074679827] [2023-12-16 17:40:04,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:40:04,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:40:04,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:40:04,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:40:04,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:40:04,804 INFO L87 Difference]: Start difference. First operand 84 states and 111 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-16 17:40:04,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:40:04,864 INFO L93 Difference]: Finished difference Result 196 states and 268 transitions. [2023-12-16 17:40:04,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:40:04,865 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 31 [2023-12-16 17:40:04,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:40:04,866 INFO L225 Difference]: With dead ends: 196 [2023-12-16 17:40:04,866 INFO L226 Difference]: Without dead ends: 114 [2023-12-16 17:40:04,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:40:04,870 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 21 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:40:04,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 189 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:40:04,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2023-12-16 17:40:04,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 86. [2023-12-16 17:40:04,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 64 states have (on average 1.390625) internal successors, (89), 71 states have internal predecessors, (89), 11 states have call successors, (11), 10 states have call predecessors, (11), 10 states have return successors, (13), 11 states have call predecessors, (13), 11 states have call successors, (13) [2023-12-16 17:40:04,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 113 transitions. [2023-12-16 17:40:04,894 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 113 transitions. Word has length 31 [2023-12-16 17:40:04,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:40:04,894 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 113 transitions. [2023-12-16 17:40:04,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-16 17:40:04,894 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 113 transitions. [2023-12-16 17:40:04,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-16 17:40:04,895 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:40:04,895 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:40:04,899 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 [2023-12-16 17:40:05,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:40:05,096 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:40:05,096 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:40:05,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1639442893, now seen corresponding path program 1 times [2023-12-16 17:40:05,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:40:05,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [707385709] [2023-12-16 17:40:05,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:40:05,097 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:40:05,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:40:05,098 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:40:05,099 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-16 17:40:05,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:40:05,141 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:40:05,143 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:40:05,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:40:05,213 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:40:05,213 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:40:05,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [707385709] [2023-12-16 17:40:05,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [707385709] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:40:05,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:40:05,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:40:05,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979566517] [2023-12-16 17:40:05,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:40:05,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 17:40:05,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:40:05,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 17:40:05,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:40:05,215 INFO L87 Difference]: Start difference. First operand 86 states and 113 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-16 17:40:05,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:40:05,289 INFO L93 Difference]: Finished difference Result 250 states and 336 transitions. [2023-12-16 17:40:05,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 17:40:05,290 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 31 [2023-12-16 17:40:05,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:40:05,292 INFO L225 Difference]: With dead ends: 250 [2023-12-16 17:40:05,292 INFO L226 Difference]: Without dead ends: 166 [2023-12-16 17:40:05,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:40:05,310 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 33 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:40:05,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 260 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:40:05,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2023-12-16 17:40:05,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 164. [2023-12-16 17:40:05,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 121 states have (on average 1.3471074380165289) internal successors, (163), 134 states have internal predecessors, (163), 22 states have call successors, (22), 20 states have call predecessors, (22), 20 states have return successors, (28), 22 states have call predecessors, (28), 22 states have call successors, (28) [2023-12-16 17:40:05,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 213 transitions. [2023-12-16 17:40:05,335 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 213 transitions. Word has length 31 [2023-12-16 17:40:05,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:40:05,348 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 213 transitions. [2023-12-16 17:40:05,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-16 17:40:05,348 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 213 transitions. [2023-12-16 17:40:05,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-12-16 17:40:05,349 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:40:05,349 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] [2023-12-16 17:40:05,359 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-12-16 17:40:05,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:40:05,550 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:40:05,550 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:40:05,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1450959017, now seen corresponding path program 1 times [2023-12-16 17:40:05,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:40:05,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1574491548] [2023-12-16 17:40:05,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:40:05,551 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:40:05,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:40:05,588 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:40:05,633 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-16 17:40:05,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:40:05,644 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:40:05,646 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:40:05,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:40:05,707 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:40:05,708 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:40:05,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1574491548] [2023-12-16 17:40:05,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1574491548] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:40:05,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:40:05,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:40:05,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388270412] [2023-12-16 17:40:05,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:40:05,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:40:05,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:40:05,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:40:05,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:40:05,709 INFO L87 Difference]: Start difference. First operand 164 states and 213 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 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) [2023-12-16 17:40:05,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:40:05,760 INFO L93 Difference]: Finished difference Result 327 states and 426 transitions. [2023-12-16 17:40:05,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:40:05,762 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 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 35 [2023-12-16 17:40:05,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:40:05,764 INFO L225 Difference]: With dead ends: 327 [2023-12-16 17:40:05,765 INFO L226 Difference]: Without dead ends: 165 [2023-12-16 17:40:05,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:40:05,765 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 25 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:40:05,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 163 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:40:05,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2023-12-16 17:40:05,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 163. [2023-12-16 17:40:05,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 120 states have (on average 1.3333333333333333) internal successors, (160), 133 states have internal predecessors, (160), 22 states have call successors, (22), 20 states have call predecessors, (22), 20 states have return successors, (28), 22 states have call predecessors, (28), 22 states have call successors, (28) [2023-12-16 17:40:05,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 210 transitions. [2023-12-16 17:40:05,791 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 210 transitions. Word has length 35 [2023-12-16 17:40:05,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:40:05,792 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 210 transitions. [2023-12-16 17:40:05,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 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) [2023-12-16 17:40:05,792 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 210 transitions. [2023-12-16 17:40:05,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-16 17:40:05,796 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:40:05,798 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:40:05,804 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-16 17:40:06,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:40:06,001 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:40:06,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:40:06,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1033242467, now seen corresponding path program 1 times [2023-12-16 17:40:06,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:40:06,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1559087405] [2023-12-16 17:40:06,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:40:06,002 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:40:06,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:40:06,008 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:40:06,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-16 17:40:06,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:40:06,044 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:40:06,046 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:40:06,059 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 17:40:06,059 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:40:06,059 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:40:06,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1559087405] [2023-12-16 17:40:06,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1559087405] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:40:06,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:40:06,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:40:06,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887570060] [2023-12-16 17:40:06,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:40:06,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:40:06,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:40:06,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:40:06,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:40:06,060 INFO L87 Difference]: Start difference. First operand 163 states and 210 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) [2023-12-16 17:40:06,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:40:06,101 INFO L93 Difference]: Finished difference Result 330 states and 434 transitions. [2023-12-16 17:40:06,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:40:06,101 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 38 [2023-12-16 17:40:06,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:40:06,102 INFO L225 Difference]: With dead ends: 330 [2023-12-16 17:40:06,102 INFO L226 Difference]: Without dead ends: 169 [2023-12-16 17:40:06,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:40:06,103 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 1 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:40:06,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 164 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:40:06,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2023-12-16 17:40:06,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 167. [2023-12-16 17:40:06,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 124 states have (on average 1.3225806451612903) internal successors, (164), 137 states have internal predecessors, (164), 22 states have call successors, (22), 20 states have call predecessors, (22), 20 states have return successors, (28), 22 states have call predecessors, (28), 22 states have call successors, (28) [2023-12-16 17:40:06,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 214 transitions. [2023-12-16 17:40:06,114 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 214 transitions. Word has length 38 [2023-12-16 17:40:06,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:40:06,114 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 214 transitions. [2023-12-16 17:40:06,114 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) [2023-12-16 17:40:06,114 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 214 transitions. [2023-12-16 17:40:06,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-16 17:40:06,115 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:40:06,115 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:40:06,119 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 [2023-12-16 17:40:06,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:40:06,333 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:40:06,333 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:40:06,333 INFO L85 PathProgramCache]: Analyzing trace with hash -232999449, now seen corresponding path program 1 times [2023-12-16 17:40:06,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:40:06,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2129853002] [2023-12-16 17:40:06,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:40:06,334 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:40:06,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:40:06,433 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:40:06,434 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-16 17:40:06,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:40:06,506 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:40:06,507 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:40:06,527 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 17:40:06,527 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:40:06,527 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:40:06,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2129853002] [2023-12-16 17:40:06,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2129853002] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:40:06,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:40:06,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:40:06,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027995814] [2023-12-16 17:40:06,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:40:06,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:40:06,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:40:06,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:40:06,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:40:06,529 INFO L87 Difference]: Start difference. First operand 167 states and 214 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 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) [2023-12-16 17:40:06,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:40:06,604 INFO L93 Difference]: Finished difference Result 403 states and 520 transitions. [2023-12-16 17:40:06,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:40:06,604 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 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 38 [2023-12-16 17:40:06,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:40:06,605 INFO L225 Difference]: With dead ends: 403 [2023-12-16 17:40:06,605 INFO L226 Difference]: Without dead ends: 238 [2023-12-16 17:40:06,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:40:06,606 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 26 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:40:06,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 108 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:40:06,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2023-12-16 17:40:06,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2023-12-16 17:40:06,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 177 states have (on average 1.2824858757062148) internal successors, (227), 192 states have internal predecessors, (227), 32 states have call successors, (32), 30 states have call predecessors, (32), 28 states have return successors, (39), 30 states have call predecessors, (39), 32 states have call successors, (39) [2023-12-16 17:40:06,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 298 transitions. [2023-12-16 17:40:06,620 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 298 transitions. Word has length 38 [2023-12-16 17:40:06,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:40:06,620 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 298 transitions. [2023-12-16 17:40:06,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 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) [2023-12-16 17:40:06,620 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 298 transitions. [2023-12-16 17:40:06,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-12-16 17:40:06,621 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:40:06,621 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:40:06,638 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 [2023-12-16 17:40:06,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:40:06,824 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:40:06,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:40:06,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1316672115, now seen corresponding path program 1 times [2023-12-16 17:40:06,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:40:06,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1471731011] [2023-12-16 17:40:06,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:40:06,824 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:40:06,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:40:06,825 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:40:06,828 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-16 17:40:06,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:40:06,863 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 17:40:06,864 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:40:06,906 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:40:06,906 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:40:06,906 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:40:06,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1471731011] [2023-12-16 17:40:06,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1471731011] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:40:06,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:40:06,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 17:40:06,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997498272] [2023-12-16 17:40:06,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:40:06,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 17:40:06,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:40:06,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 17:40:06,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:40:06,908 INFO L87 Difference]: Start difference. First operand 238 states and 298 transitions. Second operand has 6 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2023-12-16 17:40:06,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:40:06,984 INFO L93 Difference]: Finished difference Result 473 states and 594 transitions. [2023-12-16 17:40:06,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:40:06,984 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 42 [2023-12-16 17:40:06,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:40:06,985 INFO L225 Difference]: With dead ends: 473 [2023-12-16 17:40:06,985 INFO L226 Difference]: Without dead ends: 237 [2023-12-16 17:40:06,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:40:06,986 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 46 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:40:06,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 402 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:40:06,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2023-12-16 17:40:06,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 237. [2023-12-16 17:40:06,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 176 states have (on average 1.2613636363636365) internal successors, (222), 190 states have internal predecessors, (222), 32 states have call successors, (32), 30 states have call predecessors, (32), 28 states have return successors, (35), 30 states have call predecessors, (35), 32 states have call successors, (35) [2023-12-16 17:40:06,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 289 transitions. [2023-12-16 17:40:06,999 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 289 transitions. Word has length 42 [2023-12-16 17:40:07,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:40:07,000 INFO L495 AbstractCegarLoop]: Abstraction has 237 states and 289 transitions. [2023-12-16 17:40:07,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2023-12-16 17:40:07,000 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 289 transitions. [2023-12-16 17:40:07,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-16 17:40:07,001 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:40:07,001 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:40:07,013 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-16 17:40:07,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:40:07,203 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:40:07,204 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:40:07,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1095377419, now seen corresponding path program 1 times [2023-12-16 17:40:07,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:40:07,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1160445970] [2023-12-16 17:40:07,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:40:07,204 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:40:07,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:40:07,205 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) [2023-12-16 17:40:07,208 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 [2023-12-16 17:40:07,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:40:07,249 INFO L262 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:40:07,250 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:40:07,284 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 17:40:07,285 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:40:07,285 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:40:07,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1160445970] [2023-12-16 17:40:07,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1160445970] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:40:07,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:40:07,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:40:07,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147556408] [2023-12-16 17:40:07,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:40:07,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:40:07,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:40:07,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:40:07,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:40:07,286 INFO L87 Difference]: Start difference. First operand 237 states and 289 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 17:40:07,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:40:07,320 INFO L93 Difference]: Finished difference Result 346 states and 428 transitions. [2023-12-16 17:40:07,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:40:07,320 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 67 [2023-12-16 17:40:07,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:40:07,322 INFO L225 Difference]: With dead ends: 346 [2023-12-16 17:40:07,322 INFO L226 Difference]: Without dead ends: 344 [2023-12-16 17:40:07,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:40:07,322 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 30 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:40:07,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 110 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:40:07,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2023-12-16 17:40:07,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 269. [2023-12-16 17:40:07,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 200 states have (on average 1.28) internal successors, (256), 215 states have internal predecessors, (256), 36 states have call successors, (36), 34 states have call predecessors, (36), 32 states have return successors, (42), 34 states have call predecessors, (42), 36 states have call successors, (42) [2023-12-16 17:40:07,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 334 transitions. [2023-12-16 17:40:07,338 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 334 transitions. Word has length 67 [2023-12-16 17:40:07,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:40:07,338 INFO L495 AbstractCegarLoop]: Abstraction has 269 states and 334 transitions. [2023-12-16 17:40:07,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 17:40:07,339 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 334 transitions. [2023-12-16 17:40:07,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-16 17:40:07,339 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:40:07,340 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-16 17:40:07,354 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 [2023-12-16 17:40:07,542 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 [2023-12-16 17:40:07,542 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:40:07,542 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:40:07,543 INFO L85 PathProgramCache]: Analyzing trace with hash 2007320579, now seen corresponding path program 1 times [2023-12-16 17:40:07,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:40:07,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [425544817] [2023-12-16 17:40:07,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:40:07,543 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:40:07,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:40:07,544 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) [2023-12-16 17:40:07,546 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 [2023-12-16 17:40:07,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-16 17:40:07,614 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-16 17:40:07,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-16 17:40:07,688 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-12-16 17:40:07,689 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-16 17:40:07,689 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 17:40:07,693 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 [2023-12-16 17:40:07,891 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 [2023-12-16 17:40:07,893 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:40:07,895 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 17:40:07,988 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 05:40:07 BoogieIcfgContainer [2023-12-16 17:40:07,988 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 17:40:07,989 INFO L158 Benchmark]: Toolchain (without parser) took 5964.60ms. Allocated memory was 165.7MB in the beginning and 212.9MB in the end (delta: 47.2MB). Free memory was 104.2MB in the beginning and 182.6MB in the end (delta: -78.4MB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 17:40:07,989 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 165.7MB. Free memory is still 121.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 17:40:07,989 INFO L158 Benchmark]: CACSL2BoogieTranslator took 555.33ms. Allocated memory was 165.7MB in the beginning and 212.9MB in the end (delta: 47.2MB). Free memory was 104.2MB in the beginning and 172.7MB in the end (delta: -68.5MB). Peak memory consumption was 17.1MB. Max. memory is 8.0GB. [2023-12-16 17:40:07,989 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.60ms. Allocated memory is still 212.9MB. Free memory was 172.7MB in the beginning and 170.4MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-16 17:40:07,990 INFO L158 Benchmark]: Boogie Preprocessor took 47.64ms. Allocated memory is still 212.9MB. Free memory was 170.4MB in the beginning and 168.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-16 17:40:07,990 INFO L158 Benchmark]: RCFGBuilder took 476.13ms. Allocated memory is still 212.9MB. Free memory was 168.0MB in the beginning and 139.2MB in the end (delta: 28.8MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. [2023-12-16 17:40:07,990 INFO L158 Benchmark]: TraceAbstraction took 4849.45ms. Allocated memory is still 212.9MB. Free memory was 138.7MB in the beginning and 182.6MB in the end (delta: -43.9MB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 17:40:07,991 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 165.7MB. Free memory is still 121.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 555.33ms. Allocated memory was 165.7MB in the beginning and 212.9MB in the end (delta: 47.2MB). Free memory was 104.2MB in the beginning and 172.7MB in the end (delta: -68.5MB). Peak memory consumption was 17.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 31.60ms. Allocated memory is still 212.9MB. Free memory was 172.7MB in the beginning and 170.4MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 47.64ms. Allocated memory is still 212.9MB. Free memory was 170.4MB in the beginning and 168.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 476.13ms. Allocated memory is still 212.9MB. Free memory was 168.0MB in the beginning and 139.2MB in the end (delta: 28.8MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. * TraceAbstraction took 4849.45ms. Allocated memory is still 212.9MB. Free memory was 138.7MB in the beginning and 182.6MB in the end (delta: -43.9MB). There was no memory consumed. 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,"Specification2_spec.i","") [49] - GenericResultAtLocation [Line: 91]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [91] - GenericResultAtLocation [Line: 457]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [457] - GenericResultAtLocation [Line: 634]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [634] - GenericResultAtLocation [Line: 731]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [731] - GenericResultAtLocation [Line: 797]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [797] - GenericResultAtLocation [Line: 835]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [835] - GenericResultAtLocation [Line: 844]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [844] * 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 - CounterExampleResult [Line: 840]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L53] int methAndRunningLastTime ; [L261] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L465] int pumpRunning = 0; [L466] int systemActive = 1; [L638] int waterLevel = 1; [L639] int methaneLevelCritical = 0; [L845] int cleanupTimeShifts = 4; [L919] int retValue_acc ; [L920] int tmp ; [L924] FCALL select_helpers() [L925] FCALL select_features() [L926] CALL, EXPR valid_product() [L827] int retValue_acc ; [L830] retValue_acc = 1 [L831] return (retValue_acc); [L926] RET, EXPR valid_product() [L926] tmp = valid_product() [L928] COND TRUE \read(tmp) [L930] FCALL setup() [L931] CALL runTest() [L912] CALL __utac_acc__Specification2_spec__1() [L58] methAndRunningLastTime = 0 [L912] RET __utac_acc__Specification2_spec__1() [L913] CALL test() [L734] int splverifierCounter ; [L735] int tmp ; [L736] int tmp___0 ; [L737] int tmp___1 ; [L738] int tmp___2 ; [L741] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L743] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L745] COND TRUE splverifierCounter < 4 [L751] tmp = __VERIFIER_nondet_int() [L753] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=2, waterLevel=1] [L755] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L656] COND TRUE waterLevel < 2 [L657] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L755] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=2, waterLevel=2] [L761] tmp___0 = __VERIFIER_nondet_int() [L763] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=2, tmp___0=0, waterLevel=2] [L771] tmp___2 = __VERIFIER_nondet_int() [L773] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=2, tmp___0=0, tmp___2=2, waterLevel=2] [L786] CALL timeShift() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L472] COND FALSE !(\read(pumpRunning)) VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L479] COND TRUE \read(systemActive) [L481] CALL processEnvironment() [L501] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L504] COND TRUE ! pumpRunning [L506] CALL, EXPR isHighWaterLevel() [L616] int retValue_acc ; [L617] int tmp ; [L618] int tmp___0 ; [L622] CALL, EXPR isHighWaterSensorDry() [L718] int retValue_acc ; VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L721] COND FALSE !(waterLevel < 2) [L725] retValue_acc = 0 [L726] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L622] RET, EXPR isHighWaterSensorDry() [L622] tmp = isHighWaterSensorDry() [L624] COND FALSE !(\read(tmp)) [L627] tmp___0 = 1 VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L629] retValue_acc = tmp___0 [L630] return (retValue_acc); [L506] RET, EXPR isHighWaterLevel() [L506] tmp = isHighWaterLevel() [L508] COND TRUE \read(tmp) [L510] CALL activatePump() [L535] int tmp ; [L539] CALL, EXPR isMethaneAlarm() [L560] int retValue_acc ; VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L564] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L677] int retValue_acc ; [L680] retValue_acc = methaneLevelCritical [L681] return (retValue_acc); [L564] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L564] retValue_acc = isMethaneLevelCritical() [L566] return (retValue_acc); [L539] RET, EXPR isMethaneAlarm() [L539] tmp = isMethaneAlarm() [L541] COND FALSE !(\read(tmp)) [L545] CALL activatePump__wrappee__highWaterSensor() [L529] pumpRunning = 1 [L545] RET activatePump__wrappee__highWaterSensor() [L510] RET activatePump() [L481] RET processEnvironment() [L487] CALL __utac_acc__Specification2_spec__2() [L63] int tmp ; [L64] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L68] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L677] int retValue_acc ; [L680] retValue_acc = methaneLevelCritical [L681] return (retValue_acc); [L68] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L68] tmp = isMethaneLevelCritical() [L70] COND FALSE !(\read(tmp)) [L86] methAndRunningLastTime = 0 VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L487] RET __utac_acc__Specification2_spec__2() [L786] RET timeShift() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=2, tmp___0=0, tmp___2=2, waterLevel=2] [L743] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=2, tmp___0=0, tmp___2=2, waterLevel=2] [L745] COND TRUE splverifierCounter < 4 [L751] tmp = __VERIFIER_nondet_int() [L753] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=2, waterLevel=2] [L761] tmp___0 = __VERIFIER_nondet_int() [L763] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=2, tmp___2=2, waterLevel=2] [L765] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L668] COND FALSE !(\read(methaneLevelCritical)) [L671] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L765] RET changeMethaneLevel() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=2, tmp___2=2, waterLevel=2] [L771] tmp___2 = __VERIFIER_nondet_int() [L773] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=2, tmp___2=2, waterLevel=2] [L786] CALL timeShift() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L472] COND TRUE \read(pumpRunning) [L474] CALL lowerWaterLevel() [L644] COND TRUE waterLevel > 0 [L645] waterLevel = waterLevel - 1 VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L474] RET lowerWaterLevel() [L479] COND TRUE \read(systemActive) [L481] CALL processEnvironment() [L501] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L504] COND FALSE !(! pumpRunning) VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L519] FCALL processEnvironment__wrappee__base() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L481] RET processEnvironment() [L487] CALL __utac_acc__Specification2_spec__2() [L63] int tmp ; [L64] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L68] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L677] int retValue_acc ; [L680] retValue_acc = methaneLevelCritical [L681] return (retValue_acc); [L68] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L68] tmp = isMethaneLevelCritical() [L70] COND TRUE \read(tmp) [L72] CALL, EXPR isPumpRunning() [L571] int retValue_acc ; [L574] retValue_acc = pumpRunning [L575] return (retValue_acc); [L72] RET, EXPR isPumpRunning() [L72] tmp___0 = isPumpRunning() [L74] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L75] COND FALSE !(\read(methAndRunningLastTime)) [L80] methAndRunningLastTime = 1 VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L487] RET __utac_acc__Specification2_spec__2() [L786] RET timeShift() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=2, tmp___2=2, waterLevel=1] [L743] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=2, tmp___2=2, waterLevel=1] [L745] COND TRUE splverifierCounter < 4 [L751] tmp = __VERIFIER_nondet_int() [L753] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=2, tmp___2=2, waterLevel=1] [L761] tmp___0 = __VERIFIER_nondet_int() [L763] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=2, waterLevel=1] [L771] tmp___2 = __VERIFIER_nondet_int() [L773] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=2, waterLevel=1] [L786] CALL timeShift() VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L472] COND TRUE \read(pumpRunning) [L474] CALL lowerWaterLevel() [L644] COND TRUE waterLevel > 0 [L645] waterLevel = waterLevel - 1 VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L474] RET lowerWaterLevel() [L479] COND TRUE \read(systemActive) [L481] CALL processEnvironment() [L501] int tmp ; VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L504] COND FALSE !(! pumpRunning) VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L519] FCALL processEnvironment__wrappee__base() VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L481] RET processEnvironment() [L487] CALL __utac_acc__Specification2_spec__2() [L63] int tmp ; [L64] int tmp___0 ; VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L68] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L677] int retValue_acc ; [L680] retValue_acc = methaneLevelCritical [L681] return (retValue_acc); [L68] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L68] tmp = isMethaneLevelCritical() [L70] COND TRUE \read(tmp) [L72] CALL, EXPR isPumpRunning() [L571] int retValue_acc ; [L574] retValue_acc = pumpRunning [L575] return (retValue_acc); [L72] RET, EXPR isPumpRunning() [L72] tmp___0 = isPumpRunning() [L74] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=0] [L75] COND TRUE \read(methAndRunningLastTime) [L77] CALL __automaton_fail() [L840] reach_error() VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 63 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.7s, OverallIterations: 12, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 308 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 297 mSDsluCounter, 1738 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1020 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 372 IncrementalHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 718 mSDtfsCounter, 372 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 359 GetRequests, 334 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=269occurred in iteration=11, InterpolantAutomatonStates: 43, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 111 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 458 NumberOfCodeBlocks, 458 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 353 ConstructedInterpolants, 0 QuantifiedInterpolants, 669 SizeOfPredicates, 14 NumberOfNonLiveVariables, 1104 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 28/28 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 RESULT: Ultimate proved your program to be incorrect! [2023-12-16 17:40:08,013 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request...