/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_product57.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 17:40:13,547 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 17:40:13,620 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 17:40:13,623 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 17:40:13,624 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 17:40:13,645 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 17:40:13,645 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 17:40:13,646 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 17:40:13,646 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 17:40:13,649 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 17:40:13,649 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 17:40:13,649 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 17:40:13,650 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 17:40:13,650 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 17:40:13,651 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 17:40:13,651 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 17:40:13,651 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 17:40:13,651 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 17:40:13,652 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 17:40:13,652 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 17:40:13,652 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 17:40:13,652 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 17:40:13,652 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 17:40:13,652 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 17:40:13,653 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 17:40:13,653 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 17:40:13,653 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 17:40:13,653 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 17:40:13,653 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 17:40:13,653 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 17:40:13,654 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 17:40:13,654 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 17:40:13,654 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 17:40:13,654 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 17:40:13,654 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:40:13,655 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 17:40:13,655 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 17:40:13,655 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 17:40:13,655 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 17:40:13,655 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 17:40:13,655 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 17:40:13,655 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 17:40:13,655 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 17:40:13,656 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 17:40:13,656 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 17:40:13,656 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 17:40:13,656 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 17:40:13,841 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 17:40:13,860 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 17:40:13,862 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 17:40:13,862 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 17:40:13,863 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 17:40:13,864 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product57.cil.c [2023-12-16 17:40:14,947 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 17:40:15,119 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 17:40:15,120 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product57.cil.c [2023-12-16 17:40:15,131 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e431f32b4/46ba2117054047cf80df5501e48ad0ec/FLAGb7a3532e6 [2023-12-16 17:40:15,142 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e431f32b4/46ba2117054047cf80df5501e48ad0ec [2023-12-16 17:40:15,144 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 17:40:15,145 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 17:40:15,145 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 17:40:15,145 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 17:40:15,151 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 17:40:15,151 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:40:15" (1/1) ... [2023-12-16 17:40:15,152 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a484df0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:40:15, skipping insertion in model container [2023-12-16 17:40:15,152 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:40:15" (1/1) ... [2023-12-16 17:40:15,178 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 17:40:15,431 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_product57.cil.c[19040,19053] [2023-12-16 17:40:15,436 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:40:15,447 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-16 17:40:15,455 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 17:40:15,513 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_product57.cil.c[19040,19053] [2023-12-16 17:40:15,513 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:40:15,522 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 17:40:15,529 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] [2023-12-16 17:40:15,530 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [87] [2023-12-16 17:40:15,530 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [198] [2023-12-16 17:40:15,530 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [299] [2023-12-16 17:40:15,530 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [340] [2023-12-16 17:40:15,530 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [557] [2023-12-16 17:40:15,530 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [622] [2023-12-16 17:40:15,531 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [988] [2023-12-16 17:40:15,565 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_product57.cil.c[19040,19053] [2023-12-16 17:40:15,565 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:40:15,593 INFO L206 MainTranslator]: Completed translation [2023-12-16 17:40:15,593 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:40:15 WrapperNode [2023-12-16 17:40:15,594 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 17:40:15,594 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 17:40:15,594 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 17:40:15,595 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 17:40:15,599 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:40:15" (1/1) ... [2023-12-16 17:40:15,620 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:40:15" (1/1) ... [2023-12-16 17:40:15,637 INFO L138 Inliner]: procedures = 59, calls = 101, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 210 [2023-12-16 17:40:15,637 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 17:40:15,638 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 17:40:15,638 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 17:40:15,638 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 17:40:15,645 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:40:15" (1/1) ... [2023-12-16 17:40:15,646 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:40:15" (1/1) ... [2023-12-16 17:40:15,658 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:40:15" (1/1) ... [2023-12-16 17:40:15,674 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 17:40:15,674 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:40:15" (1/1) ... [2023-12-16 17:40:15,675 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:40:15" (1/1) ... [2023-12-16 17:40:15,678 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:40:15" (1/1) ... [2023-12-16 17:40:15,699 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:40:15" (1/1) ... [2023-12-16 17:40:15,701 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:40:15" (1/1) ... [2023-12-16 17:40:15,702 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:40:15" (1/1) ... [2023-12-16 17:40:15,703 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 17:40:15,704 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 17:40:15,704 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 17:40:15,704 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 17:40:15,705 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:40:15" (1/1) ... [2023-12-16 17:40:15,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:40:15,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 17:40:15,735 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 17:40:15,741 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 17:40:15,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 17:40:15,780 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-12-16 17:40:15,780 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-12-16 17:40:15,781 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-16 17:40:15,781 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-16 17:40:15,781 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-16 17:40:15,781 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-16 17:40:15,781 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-12-16 17:40:15,781 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-12-16 17:40:15,781 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-12-16 17:40:15,782 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-12-16 17:40:15,782 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-12-16 17:40:15,782 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-12-16 17:40:15,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 17:40:15,784 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-12-16 17:40:15,784 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-12-16 17:40:15,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 17:40:15,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 17:40:15,857 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 17:40:15,859 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 17:40:16,071 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 17:40:16,123 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 17:40:16,123 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-16 17:40:16,124 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:40:16 BoogieIcfgContainer [2023-12-16 17:40:16,124 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 17:40:16,125 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 17:40:16,125 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 17:40:16,128 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 17:40:16,128 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 05:40:15" (1/3) ... [2023-12-16 17:40:16,129 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6884f198 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:40:16, skipping insertion in model container [2023-12-16 17:40:16,129 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:40:15" (2/3) ... [2023-12-16 17:40:16,129 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6884f198 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:40:16, skipping insertion in model container [2023-12-16 17:40:16,129 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:40:16" (3/3) ... [2023-12-16 17:40:16,130 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product57.cil.c [2023-12-16 17:40:16,143 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 17:40:16,143 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 17:40:16,174 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 17:40:16,179 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;@b6851b1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 17:40:16,179 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 17:40:16,182 INFO L276 IsEmpty]: Start isEmpty. Operand has 72 states, 51 states have (on average 1.5490196078431373) internal successors, (79), 59 states have internal predecessors, (79), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2023-12-16 17:40:16,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-16 17:40:16,189 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:40:16,189 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 17:40:16,189 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:40:16,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:40:16,193 INFO L85 PathProgramCache]: Analyzing trace with hash 756597807, now seen corresponding path program 1 times [2023-12-16 17:40:16,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:40:16,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2029760000] [2023-12-16 17:40:16,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:40:16,203 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 17:40:16,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:40:16,205 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 17:40:16,212 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 17:40:16,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:40:16,314 INFO L262 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 17:40:16,317 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:40:16,341 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 17:40:16,342 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:40:16,342 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:40:16,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2029760000] [2023-12-16 17:40:16,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2029760000] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:40:16,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:40:16,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:40:16,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093760592] [2023-12-16 17:40:16,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:40:16,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 17:40:16,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:40:16,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 17:40:16,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 17:40:16,391 INFO L87 Difference]: Start difference. First operand has 72 states, 51 states have (on average 1.5490196078431373) internal successors, (79), 59 states have internal predecessors, (79), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) 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 17:40:16,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:40:16,437 INFO L93 Difference]: Finished difference Result 142 states and 207 transitions. [2023-12-16 17:40:16,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 17:40:16,440 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 17:40:16,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:40:16,448 INFO L225 Difference]: With dead ends: 142 [2023-12-16 17:40:16,448 INFO L226 Difference]: Without dead ends: 67 [2023-12-16 17:40:16,451 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 17:40:16,453 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:40:16,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 83 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:40:16,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2023-12-16 17:40:16,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2023-12-16 17:40:16,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 48 states have (on average 1.4375) internal successors, (69), 55 states have internal predecessors, (69), 12 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2023-12-16 17:40:16,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 92 transitions. [2023-12-16 17:40:16,492 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 92 transitions. Word has length 17 [2023-12-16 17:40:16,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:40:16,493 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 92 transitions. [2023-12-16 17:40:16,493 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 17:40:16,493 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 92 transitions. [2023-12-16 17:40:16,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-16 17:40:16,494 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:40:16,495 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 17:40:16,504 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 17:40:16,697 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 17:40:16,698 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:40:16,698 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:40:16,698 INFO L85 PathProgramCache]: Analyzing trace with hash -2122968829, now seen corresponding path program 1 times [2023-12-16 17:40:16,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:40:16,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1017891803] [2023-12-16 17:40:16,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:40:16,702 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 17:40:16,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:40:16,705 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 17:40:16,713 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 17:40:16,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:40:16,782 INFO L262 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:40:16,788 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:40:16,820 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 17:40:16,820 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:40:16,821 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:40:16,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1017891803] [2023-12-16 17:40:16,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1017891803] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:40:16,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:40:16,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:40:16,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821864129] [2023-12-16 17:40:16,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:40:16,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:40:16,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:40:16,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:40:16,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:40:16,841 INFO L87 Difference]: Start difference. First operand 67 states and 92 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 17:40:16,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:40:16,890 INFO L93 Difference]: Finished difference Result 107 states and 147 transitions. [2023-12-16 17:40:16,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:40:16,891 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 17:40:16,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:40:16,894 INFO L225 Difference]: With dead ends: 107 [2023-12-16 17:40:16,894 INFO L226 Difference]: Without dead ends: 59 [2023-12-16 17:40:16,895 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 17:40:16,896 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 11 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:40:16,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 124 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:40:16,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2023-12-16 17:40:16,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2023-12-16 17:40:16,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 43 states have (on average 1.4651162790697674) internal successors, (63), 50 states have internal predecessors, (63), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-16 17:40:16,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 81 transitions. [2023-12-16 17:40:16,905 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 81 transitions. Word has length 18 [2023-12-16 17:40:16,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:40:16,905 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 81 transitions. [2023-12-16 17:40:16,905 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 17:40:16,905 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 81 transitions. [2023-12-16 17:40:16,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-16 17:40:16,906 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:40:16,906 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 17:40:16,910 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 17:40:17,111 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 17:40:17,111 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:40:17,111 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:40:17,111 INFO L85 PathProgramCache]: Analyzing trace with hash 179426806, now seen corresponding path program 1 times [2023-12-16 17:40:17,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:40:17,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [716847504] [2023-12-16 17:40:17,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:40:17,112 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 17:40:17,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:40:17,113 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 17:40:17,139 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 17:40:17,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:40:17,156 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:40:17,157 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:40:17,176 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 17:40:17,176 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:40:17,176 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:40:17,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [716847504] [2023-12-16 17:40:17,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [716847504] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:40:17,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:40:17,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:40:17,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183791430] [2023-12-16 17:40:17,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:40:17,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:40:17,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:40:17,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:40:17,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:40:17,178 INFO L87 Difference]: Start difference. First operand 59 states and 81 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 17:40:17,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:40:17,201 INFO L93 Difference]: Finished difference Result 116 states and 161 transitions. [2023-12-16 17:40:17,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:40:17,202 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 17:40:17,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:40:17,202 INFO L225 Difference]: With dead ends: 116 [2023-12-16 17:40:17,202 INFO L226 Difference]: Without dead ends: 59 [2023-12-16 17:40:17,203 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 17:40:17,204 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 69 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:40:17,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 67 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:40:17,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2023-12-16 17:40:17,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2023-12-16 17:40:17,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 43 states have (on average 1.441860465116279) internal successors, (62), 50 states have internal predecessors, (62), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-16 17:40:17,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 80 transitions. [2023-12-16 17:40:17,210 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 80 transitions. Word has length 21 [2023-12-16 17:40:17,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:40:17,210 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 80 transitions. [2023-12-16 17:40:17,210 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 17:40:17,211 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 80 transitions. [2023-12-16 17:40:17,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-16 17:40:17,211 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:40:17,211 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 17:40:17,222 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 17:40:17,414 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 17:40:17,414 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:40:17,414 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:40:17,414 INFO L85 PathProgramCache]: Analyzing trace with hash 11069496, now seen corresponding path program 1 times [2023-12-16 17:40:17,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:40:17,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1466737713] [2023-12-16 17:40:17,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:40:17,415 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:40:17,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:40:17,416 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 17:40:17,421 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 17:40:17,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:40:17,491 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:40:17,494 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:40:17,537 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 17:40:17,538 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:40:17,538 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:40:17,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1466737713] [2023-12-16 17:40:17,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1466737713] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:40:17,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:40:17,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:40:17,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9859676] [2023-12-16 17:40:17,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:40:17,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:40:17,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:40:17,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:40:17,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:40:17,539 INFO L87 Difference]: Start difference. First operand 59 states and 80 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-16 17:40:17,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:40:17,590 INFO L93 Difference]: Finished difference Result 156 states and 214 transitions. [2023-12-16 17:40:17,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:40:17,591 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2023-12-16 17:40:17,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:40:17,592 INFO L225 Difference]: With dead ends: 156 [2023-12-16 17:40:17,592 INFO L226 Difference]: Without dead ends: 99 [2023-12-16 17:40:17,592 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 17:40:17,593 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 54 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:40:17,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 126 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:40:17,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-12-16 17:40:17,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 97. [2023-12-16 17:40:17,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 71 states have (on average 1.3943661971830985) internal successors, (99), 79 states have internal predecessors, (99), 13 states have call successors, (13), 12 states have call predecessors, (13), 12 states have return successors, (17), 13 states have call predecessors, (17), 13 states have call successors, (17) [2023-12-16 17:40:17,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 129 transitions. [2023-12-16 17:40:17,605 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 129 transitions. Word has length 26 [2023-12-16 17:40:17,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:40:17,605 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 129 transitions. [2023-12-16 17:40:17,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-16 17:40:17,605 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 129 transitions. [2023-12-16 17:40:17,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-16 17:40:17,606 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:40:17,606 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:40:17,622 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-16 17:40:17,808 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 17:40:17,808 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:40:17,809 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:40:17,809 INFO L85 PathProgramCache]: Analyzing trace with hash -170334435, now seen corresponding path program 1 times [2023-12-16 17:40:17,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:40:17,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2131008930] [2023-12-16 17:40:17,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:40:17,809 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 17:40:17,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:40:17,810 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 17:40:17,812 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 17:40:17,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:40:17,897 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:40:17,903 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:40:18,004 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 17:40:18,005 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:40:18,005 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:40:18,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2131008930] [2023-12-16 17:40:18,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2131008930] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:40:18,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:40:18,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:40:18,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142651068] [2023-12-16 17:40:18,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:40:18,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 17:40:18,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:40:18,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 17:40:18,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:40:18,006 INFO L87 Difference]: Start difference. First operand 97 states and 129 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-16 17:40:18,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:40:18,111 INFO L93 Difference]: Finished difference Result 283 states and 384 transitions. [2023-12-16 17:40:18,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 17:40:18,112 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 36 [2023-12-16 17:40:18,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:40:18,113 INFO L225 Difference]: With dead ends: 283 [2023-12-16 17:40:18,113 INFO L226 Difference]: Without dead ends: 188 [2023-12-16 17:40:18,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:40:18,115 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 41 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:40:18,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 313 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:40:18,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2023-12-16 17:40:18,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 186. [2023-12-16 17:40:18,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 135 states have (on average 1.3555555555555556) internal successors, (183), 150 states have internal predecessors, (183), 26 states have call successors, (26), 24 states have call predecessors, (26), 24 states have return successors, (36), 26 states have call predecessors, (36), 26 states have call successors, (36) [2023-12-16 17:40:18,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 245 transitions. [2023-12-16 17:40:18,137 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 245 transitions. Word has length 36 [2023-12-16 17:40:18,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:40:18,138 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 245 transitions. [2023-12-16 17:40:18,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-16 17:40:18,138 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 245 transitions. [2023-12-16 17:40:18,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-12-16 17:40:18,139 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:40:18,139 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:40:18,145 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 17:40:18,341 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 17:40:18,341 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:40:18,342 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:40:18,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1255896993, now seen corresponding path program 1 times [2023-12-16 17:40:18,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:40:18,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [656056446] [2023-12-16 17:40:18,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:40:18,342 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 17:40:18,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:40:18,343 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 17:40:18,366 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 17:40:18,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:40:18,381 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 17:40:18,383 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:40:18,455 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 17:40:18,455 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:40:18,455 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:40:18,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [656056446] [2023-12-16 17:40:18,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [656056446] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:40:18,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:40:18,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:40:18,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118563772] [2023-12-16 17:40:18,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:40:18,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:40:18,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:40:18,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:40:18,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:40:18,459 INFO L87 Difference]: Start difference. First operand 186 states and 245 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-16 17:40:18,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:40:18,640 INFO L93 Difference]: Finished difference Result 410 states and 537 transitions. [2023-12-16 17:40:18,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 17:40:18,641 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 40 [2023-12-16 17:40:18,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:40:18,645 INFO L225 Difference]: With dead ends: 410 [2023-12-16 17:40:18,645 INFO L226 Difference]: Without dead ends: 226 [2023-12-16 17:40:18,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-16 17:40:18,649 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 87 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:40:18,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 186 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:40:18,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2023-12-16 17:40:18,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 220. [2023-12-16 17:40:18,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 159 states have (on average 1.3144654088050314) internal successors, (209), 174 states have internal predecessors, (209), 30 states have call successors, (30), 24 states have call predecessors, (30), 30 states have return successors, (46), 32 states have call predecessors, (46), 30 states have call successors, (46) [2023-12-16 17:40:18,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 285 transitions. [2023-12-16 17:40:18,693 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 285 transitions. Word has length 40 [2023-12-16 17:40:18,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:40:18,694 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 285 transitions. [2023-12-16 17:40:18,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-16 17:40:18,695 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 285 transitions. [2023-12-16 17:40:18,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-16 17:40:18,699 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:40:18,700 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, 1] [2023-12-16 17:40:18,711 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 (7)] Forceful destruction successful, exit code 0 [2023-12-16 17:40:18,904 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 17:40:18,904 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:40:18,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:40:18,905 INFO L85 PathProgramCache]: Analyzing trace with hash 605014534, now seen corresponding path program 1 times [2023-12-16 17:40:18,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:40:18,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1177734971] [2023-12-16 17:40:18,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:40:18,905 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 17:40:18,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:40:18,906 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 17:40:18,925 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 17:40:18,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:40:18,949 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:40:18,950 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:40:18,960 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 17:40:18,960 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:40:18,961 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:40:18,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1177734971] [2023-12-16 17:40:18,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1177734971] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:40:18,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:40:18,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:40:18,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50179125] [2023-12-16 17:40:18,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:40:18,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:40:18,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:40:18,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:40:18,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:40:18,962 INFO L87 Difference]: Start difference. First operand 220 states and 285 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-16 17:40:19,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:40:19,000 INFO L93 Difference]: Finished difference Result 446 states and 596 transitions. [2023-12-16 17:40:19,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:40:19,001 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 43 [2023-12-16 17:40:19,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:40:19,002 INFO L225 Difference]: With dead ends: 446 [2023-12-16 17:40:19,002 INFO L226 Difference]: Without dead ends: 228 [2023-12-16 17:40:19,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 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 17:40:19,003 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 2 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:40:19,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 198 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:40:19,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2023-12-16 17:40:19,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 224. [2023-12-16 17:40:19,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 163 states have (on average 1.3067484662576687) internal successors, (213), 178 states have internal predecessors, (213), 30 states have call successors, (30), 24 states have call predecessors, (30), 30 states have return successors, (46), 32 states have call predecessors, (46), 30 states have call successors, (46) [2023-12-16 17:40:19,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 289 transitions. [2023-12-16 17:40:19,019 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 289 transitions. Word has length 43 [2023-12-16 17:40:19,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:40:19,019 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 289 transitions. [2023-12-16 17:40:19,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-16 17:40:19,019 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 289 transitions. [2023-12-16 17:40:19,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-16 17:40:19,020 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:40:19,020 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, 1] [2023-12-16 17:40:19,024 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 17:40:19,222 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 17:40:19,223 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:40:19,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:40:19,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1027716360, now seen corresponding path program 1 times [2023-12-16 17:40:19,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:40:19,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [815463563] [2023-12-16 17:40:19,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:40:19,223 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 17:40:19,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:40:19,224 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 17:40:19,226 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 17:40:19,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:40:19,263 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:40:19,265 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:40:19,275 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 17:40:19,275 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:40:19,275 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:40:19,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [815463563] [2023-12-16 17:40:19,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [815463563] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:40:19,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:40:19,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:40:19,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346975744] [2023-12-16 17:40:19,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:40:19,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:40:19,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:40:19,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:40:19,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:40:19,276 INFO L87 Difference]: Start difference. First operand 224 states and 289 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-16 17:40:19,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:40:19,319 INFO L93 Difference]: Finished difference Result 460 states and 612 transitions. [2023-12-16 17:40:19,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:40:19,319 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 43 [2023-12-16 17:40:19,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:40:19,320 INFO L225 Difference]: With dead ends: 460 [2023-12-16 17:40:19,320 INFO L226 Difference]: Without dead ends: 238 [2023-12-16 17:40:19,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 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 17:40:19,321 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 6 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:40:19,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 197 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:40:19,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2023-12-16 17:40:19,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 228. [2023-12-16 17:40:19,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 167 states have (on average 1.2994011976047903) internal successors, (217), 182 states have internal predecessors, (217), 30 states have call successors, (30), 24 states have call predecessors, (30), 30 states have return successors, (46), 32 states have call predecessors, (46), 30 states have call successors, (46) [2023-12-16 17:40:19,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 293 transitions. [2023-12-16 17:40:19,335 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 293 transitions. Word has length 43 [2023-12-16 17:40:19,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:40:19,335 INFO L495 AbstractCegarLoop]: Abstraction has 228 states and 293 transitions. [2023-12-16 17:40:19,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-16 17:40:19,335 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 293 transitions. [2023-12-16 17:40:19,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-16 17:40:19,336 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:40:19,336 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, 1] [2023-12-16 17:40:19,338 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 17:40:19,538 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 17:40:19,539 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:40:19,539 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:40:19,539 INFO L85 PathProgramCache]: Analyzing trace with hash -777721974, now seen corresponding path program 1 times [2023-12-16 17:40:19,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:40:19,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1539763578] [2023-12-16 17:40:19,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:40:19,540 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 17:40:19,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:40:19,541 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 17:40:19,543 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 17:40:19,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:40:19,581 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:40:19,582 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:40:19,605 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 17:40:19,606 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:40:19,606 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:40:19,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1539763578] [2023-12-16 17:40:19,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1539763578] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:40:19,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:40:19,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:40:19,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494278742] [2023-12-16 17:40:19,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:40:19,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:40:19,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:40:19,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:40:19,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:40:19,607 INFO L87 Difference]: Start difference. First operand 228 states and 293 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-16 17:40:19,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:40:19,646 INFO L93 Difference]: Finished difference Result 535 states and 692 transitions. [2023-12-16 17:40:19,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:40:19,647 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 43 [2023-12-16 17:40:19,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:40:19,648 INFO L225 Difference]: With dead ends: 535 [2023-12-16 17:40:19,648 INFO L226 Difference]: Without dead ends: 309 [2023-12-16 17:40:19,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 41 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 17:40:19,649 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 28 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:40:19,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 128 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:40:19,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2023-12-16 17:40:19,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 309. [2023-12-16 17:40:19,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 226 states have (on average 1.2654867256637168) internal successors, (286), 243 states have internal predecessors, (286), 42 states have call successors, (42), 36 states have call predecessors, (42), 40 states have return successors, (59), 42 states have call predecessors, (59), 42 states have call successors, (59) [2023-12-16 17:40:19,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 387 transitions. [2023-12-16 17:40:19,666 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 387 transitions. Word has length 43 [2023-12-16 17:40:19,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:40:19,666 INFO L495 AbstractCegarLoop]: Abstraction has 309 states and 387 transitions. [2023-12-16 17:40:19,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-16 17:40:19,666 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 387 transitions. [2023-12-16 17:40:19,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-16 17:40:19,667 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:40:19,667 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, 1, 1, 1, 1, 1] [2023-12-16 17:40:19,669 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2023-12-16 17:40:19,869 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 17:40:19,869 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:40:19,870 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:40:19,870 INFO L85 PathProgramCache]: Analyzing trace with hash 140205604, now seen corresponding path program 1 times [2023-12-16 17:40:19,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:40:19,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2118731665] [2023-12-16 17:40:19,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:40:19,870 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 17:40:19,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:40:19,871 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 17:40:19,896 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 17:40:19,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:40:19,917 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 17:40:19,919 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:40:19,966 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 17:40:19,966 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:40:19,967 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:40:19,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2118731665] [2023-12-16 17:40:19,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2118731665] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:40:19,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:40:19,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 17:40:19,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419277395] [2023-12-16 17:40:19,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:40:19,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 17:40:19,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:40:19,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 17:40:19,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:40:19,968 INFO L87 Difference]: Start difference. First operand 309 states and 387 transitions. Second operand has 6 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2023-12-16 17:40:20,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:40:20,083 INFO L93 Difference]: Finished difference Result 604 states and 758 transitions. [2023-12-16 17:40:20,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:40:20,084 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 47 [2023-12-16 17:40:20,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:40:20,086 INFO L225 Difference]: With dead ends: 604 [2023-12-16 17:40:20,086 INFO L226 Difference]: Without dead ends: 297 [2023-12-16 17:40:20,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:40:20,087 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 54 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:40:20,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 382 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:40:20,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2023-12-16 17:40:20,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 297. [2023-12-16 17:40:20,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 217 states have (on average 1.2442396313364055) internal successors, (270), 233 states have internal predecessors, (270), 41 states have call successors, (41), 36 states have call predecessors, (41), 38 states have return successors, (51), 40 states have call predecessors, (51), 41 states have call successors, (51) [2023-12-16 17:40:20,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 362 transitions. [2023-12-16 17:40:20,109 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 362 transitions. Word has length 47 [2023-12-16 17:40:20,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:40:20,110 INFO L495 AbstractCegarLoop]: Abstraction has 297 states and 362 transitions. [2023-12-16 17:40:20,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2023-12-16 17:40:20,110 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 362 transitions. [2023-12-16 17:40:20,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-16 17:40:20,111 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:40:20,111 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:40:20,178 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 17:40:20,312 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 17:40:20,312 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:40:20,313 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:40:20,313 INFO L85 PathProgramCache]: Analyzing trace with hash -625871405, now seen corresponding path program 1 times [2023-12-16 17:40:20,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:40:20,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1009272992] [2023-12-16 17:40:20,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:40:20,314 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 17:40:20,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:40:20,330 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 17:40:20,349 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 (12)] Waiting until timeout for monitored process [2023-12-16 17:40:20,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:40:20,379 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-16 17:40:20,382 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:40:20,464 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-16 17:40:20,464 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:40:20,649 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-16 17:40:20,649 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:40:20,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1009272992] [2023-12-16 17:40:20,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1009272992] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:40:20,649 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:40:20,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 12 [2023-12-16 17:40:20,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784692254] [2023-12-16 17:40:20,650 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:40:20,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-16 17:40:20,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:40:20,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-16 17:40:20,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-12-16 17:40:20,651 INFO L87 Difference]: Start difference. First operand 297 states and 362 transitions. Second operand has 12 states, 12 states have (on average 7.416666666666667) internal successors, (89), 11 states have internal predecessors, (89), 8 states have call successors, (19), 7 states have call predecessors, (19), 7 states have return successors, (17), 6 states have call predecessors, (17), 8 states have call successors, (17) [2023-12-16 17:40:21,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:40:21,281 INFO L93 Difference]: Finished difference Result 1538 states and 2069 transitions. [2023-12-16 17:40:21,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-16 17:40:21,281 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.416666666666667) internal successors, (89), 11 states have internal predecessors, (89), 8 states have call successors, (19), 7 states have call predecessors, (19), 7 states have return successors, (17), 6 states have call predecessors, (17), 8 states have call successors, (17) Word has length 80 [2023-12-16 17:40:21,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:40:21,287 INFO L225 Difference]: With dead ends: 1538 [2023-12-16 17:40:21,287 INFO L226 Difference]: Without dead ends: 1324 [2023-12-16 17:40:21,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=148, Invalid=452, Unknown=0, NotChecked=0, Total=600 [2023-12-16 17:40:21,288 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 606 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 607 mSolverCounterSat, 255 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 619 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 255 IncrementalHoareTripleChecker+Valid, 607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 17:40:21,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [619 Valid, 455 Invalid, 862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [255 Valid, 607 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 17:40:21,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1324 states. [2023-12-16 17:40:21,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1324 to 1228. [2023-12-16 17:40:21,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1228 states, 892 states have (on average 1.2477578475336324) internal successors, (1113), 964 states have internal predecessors, (1113), 172 states have call successors, (172), 140 states have call predecessors, (172), 163 states have return successors, (304), 177 states have call predecessors, (304), 172 states have call successors, (304) [2023-12-16 17:40:21,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1228 states to 1228 states and 1589 transitions. [2023-12-16 17:40:21,452 INFO L78 Accepts]: Start accepts. Automaton has 1228 states and 1589 transitions. Word has length 80 [2023-12-16 17:40:21,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:40:21,452 INFO L495 AbstractCegarLoop]: Abstraction has 1228 states and 1589 transitions. [2023-12-16 17:40:21,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.416666666666667) internal successors, (89), 11 states have internal predecessors, (89), 8 states have call successors, (19), 7 states have call predecessors, (19), 7 states have return successors, (17), 6 states have call predecessors, (17), 8 states have call successors, (17) [2023-12-16 17:40:21,452 INFO L276 IsEmpty]: Start isEmpty. Operand 1228 states and 1589 transitions. [2023-12-16 17:40:21,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-16 17:40:21,453 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:40:21,454 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:40:21,474 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 17:40:21,656 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 17:40:21,656 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:40:21,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:40:21,657 INFO L85 PathProgramCache]: Analyzing trace with hash -203169579, now seen corresponding path program 1 times [2023-12-16 17:40:21,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:40:21,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [578868430] [2023-12-16 17:40:21,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:40:21,657 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:40:21,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:40:21,658 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 17:40:21,678 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 17:40:21,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:40:21,727 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:40:21,729 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:40:21,739 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-16 17:40:21,739 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:40:21,739 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:40:21,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [578868430] [2023-12-16 17:40:21,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [578868430] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:40:21,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:40:21,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:40:21,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476465877] [2023-12-16 17:40:21,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:40:21,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:40:21,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:40:21,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:40:21,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:40:21,741 INFO L87 Difference]: Start difference. First operand 1228 states and 1589 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-16 17:40:21,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:40:21,791 INFO L93 Difference]: Finished difference Result 1478 states and 1888 transitions. [2023-12-16 17:40:21,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:40:21,791 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 80 [2023-12-16 17:40:21,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:40:21,792 INFO L225 Difference]: With dead ends: 1478 [2023-12-16 17:40:21,792 INFO L226 Difference]: Without dead ends: 0 [2023-12-16 17:40:21,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 77 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 17:40:21,795 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 1 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:40:21,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 167 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:40:21,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-16 17:40:21,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-16 17:40:21,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:40:21,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-16 17:40:21,796 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 80 [2023-12-16 17:40:21,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:40:21,797 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-16 17:40:21,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-16 17:40:21,797 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-16 17:40:21,797 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-16 17:40:21,799 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 17:40:21,804 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 (13)] Forceful destruction successful, exit code 0 [2023-12-16 17:40:22,004 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 17:40:22,006 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-16 17:40:23,337 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 370 376) no Hoare annotation was computed. [2023-12-16 17:40:23,338 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 370 376) the Hoare annotation is: true [2023-12-16 17:40:23,338 INFO L899 garLoopResultBuilder]: For program point L126-1(lines 122 133) no Hoare annotation was computed. [2023-12-16 17:40:23,338 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 122 133) the Hoare annotation is: (let ((.cse1 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse3 (not (= |old(~methaneLevelCritical~0)| (_ bv0 32)))) (.cse5 (not (= ~waterLevel~0 (_ bv1 32)))) (.cse4 (not (= (_ bv0 32) ~pumpRunning~0))) (.cse0 (not (= ~systemActive~0 (_ bv1 32)))) (.cse2 (not (= ~waterLevel~0 (_ bv2 32)))) (.cse6 (not (= |old(~methaneLevelCritical~0)| (_ bv1 32)))) (.cse7 (= ~methaneLevelCritical~0 (_ bv1 32)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse0 .cse5 .cse6 .cse7) (or .cse4 .cse0 .cse1 .cse3 .cse5) (or .cse4 .cse0 .cse2 .cse6 .cse7))) [2023-12-16 17:40:23,338 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 122 133) no Hoare annotation was computed. [2023-12-16 17:40:23,338 INFO L899 garLoopResultBuilder]: For program point L547-2(lines 547 551) no Hoare annotation was computed. [2023-12-16 17:40:23,338 INFO L899 garLoopResultBuilder]: For program point L993(line 993) no Hoare annotation was computed. [2023-12-16 17:40:23,339 INFO L899 garLoopResultBuilder]: For program point L102(lines 102 106) no Hoare annotation was computed. [2023-12-16 17:40:23,339 INFO L899 garLoopResultBuilder]: For program point L102-2(lines 98 109) no Hoare annotation was computed. [2023-12-16 17:40:23,339 INFO L899 garLoopResultBuilder]: For program point L350-1(lines 349 368) no Hoare annotation was computed. [2023-12-16 17:40:23,341 INFO L895 garLoopResultBuilder]: At program point L317(line 317) the Hoare annotation is: (let ((.cse13 (= ~waterLevel~0 (_ bv2 32))) (.cse14 (= (_ bv2 32) |old(~waterLevel~0)|)) (.cse11 (= ~systemActive~0 (_ bv1 32))) (.cse9 (= ~methaneLevelCritical~0 (_ bv1 32))) (.cse10 (= |old(~pumpRunning~0)| (_ bv0 32))) (.cse12 (= (_ bv0 32) ~pumpRunning~0))) (let ((.cse7 (and .cse13 .cse14 .cse11 .cse9 .cse10 .cse12)) (.cse5 (not .cse14)) (.cse8 (and .cse13 .cse14 .cse11)) (.cse4 (not (= ~methaneLevelCritical~0 (_ bv0 32)))) (.cse0 (and (= ~waterLevel~0 (_ bv1 32)) .cse12)) (.cse1 (not .cse11)) (.cse2 (not .cse10)) (.cse3 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (.cse6 (not .cse9))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse0 .cse1 .cse6 .cse7) (or .cse5 .cse1 .cse2 .cse6 .cse7) (or .cse5 .cse0 .cse1 .cse8 .cse4) (or .cse5 .cse1 .cse8 .cse2 .cse4) (or .cse0 .cse1 .cse2 .cse3 .cse6)))) [2023-12-16 17:40:23,341 INFO L899 garLoopResultBuilder]: For program point L412(lines 412 420) no Hoare annotation was computed. [2023-12-16 17:40:23,342 INFO L899 garLoopResultBuilder]: For program point L317-1(line 317) no Hoare annotation was computed. [2023-12-16 17:40:23,342 INFO L899 garLoopResultBuilder]: For program point L408(lines 408 425) no Hoare annotation was computed. [2023-12-16 17:40:23,342 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 346 369) the Hoare annotation is: (let ((.cse4 (not (= ~methaneLevelCritical~0 (_ bv0 32)))) (.cse0 (and (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0))) (.cse2 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse3 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (.cse5 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse1 (not (= ~systemActive~0 (_ bv1 32)))) (.cse6 (and (= ~waterLevel~0 (_ bv2 32)) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (.cse7 (not (= ~methaneLevelCritical~0 (_ bv1 32))))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse1 .cse6 .cse4) (or .cse0 .cse1 .cse2 .cse3 .cse7) (or .cse5 .cse1 .cse6 .cse7))) [2023-12-16 17:40:23,342 INFO L899 garLoopResultBuilder]: For program point L323(lines 323 333) no Hoare annotation was computed. [2023-12-16 17:40:23,342 INFO L895 garLoopResultBuilder]: At program point L418(line 418) the Hoare annotation is: (let ((.cse2 (not (= ~methaneLevelCritical~0 (_ bv1 32)))) (.cse0 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse1 (not (= ~systemActive~0 (_ bv1 32)))) (.cse3 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse4 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (.cse5 (not (= ~methaneLevelCritical~0 (_ bv0 32))))) (and (or .cse0 .cse1 .cse2) (or .cse1 .cse3 .cse4 .cse2) (or .cse0 .cse1 .cse5) (or .cse1 .cse3 .cse4 .cse5))) [2023-12-16 17:40:23,342 INFO L899 garLoopResultBuilder]: For program point L319(lines 319 336) no Hoare annotation was computed. [2023-12-16 17:40:23,342 INFO L899 garLoopResultBuilder]: For program point L319-1(lines 311 339) no Hoare annotation was computed. [2023-12-16 17:40:23,342 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 346 369) no Hoare annotation was computed. [2023-12-16 17:40:23,343 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 993) no Hoare annotation was computed. [2023-12-16 17:40:23,343 INFO L895 garLoopResultBuilder]: At program point L423(line 423) the Hoare annotation is: (let ((.cse8 (= |old(~pumpRunning~0)| (_ bv0 32))) (.cse9 (= (_ bv0 32) ~pumpRunning~0))) (let ((.cse0 (and (= ~waterLevel~0 (_ bv1 32)) .cse9)) (.cse2 (not .cse8)) (.cse3 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (.cse4 (not (= ~methaneLevelCritical~0 (_ bv0 32)))) (.cse6 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse1 (not (= ~systemActive~0 (_ bv1 32)))) (.cse5 (not (= ~methaneLevelCritical~0 (_ bv1 32)))) (.cse7 (and (= ~waterLevel~0 (_ bv2 32)) .cse8 .cse9))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse1 .cse2 .cse3 .cse5) (or .cse6 .cse1 .cse4 .cse7) (or .cse6 .cse1 .cse5 .cse7)))) [2023-12-16 17:40:23,343 INFO L899 garLoopResultBuilder]: For program point L423-1(lines 404 428) no Hoare annotation was computed. [2023-12-16 17:40:23,343 INFO L899 garLoopResultBuilder]: For program point L357-1(lines 357 363) no Hoare annotation was computed. [2023-12-16 17:40:23,343 INFO L899 garLoopResultBuilder]: For program point L324(lines 324 330) no Hoare annotation was computed. [2023-12-16 17:40:23,343 INFO L899 garLoopResultBuilder]: For program point L547(lines 547 551) no Hoare annotation was computed. [2023-12-16 17:40:23,343 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 201 230) no Hoare annotation was computed. [2023-12-16 17:40:23,344 INFO L899 garLoopResultBuilder]: For program point L222(line 222) no Hoare annotation was computed. [2023-12-16 17:40:23,344 INFO L899 garLoopResultBuilder]: For program point L215(lines 215 219) no Hoare annotation was computed. [2023-12-16 17:40:23,344 INFO L902 garLoopResultBuilder]: At program point L215-1(lines 215 219) the Hoare annotation is: true [2023-12-16 17:40:23,344 INFO L902 garLoopResultBuilder]: At program point L211-2(lines 211 225) the Hoare annotation is: true [2023-12-16 17:40:23,344 INFO L902 garLoopResultBuilder]: At program point L207(line 207) the Hoare annotation is: true [2023-12-16 17:40:23,344 INFO L899 garLoopResultBuilder]: For program point L207-1(line 207) no Hoare annotation was computed. [2023-12-16 17:40:23,344 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 201 230) the Hoare annotation is: true [2023-12-16 17:40:23,344 INFO L899 garLoopResultBuilder]: For program point L226(lines 201 230) no Hoare annotation was computed. [2023-12-16 17:40:23,344 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 134 142) the Hoare annotation is: true [2023-12-16 17:40:23,344 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 134 142) no Hoare annotation was computed. [2023-12-16 17:40:23,344 INFO L895 garLoopResultBuilder]: At program point L614(lines 567 615) the Hoare annotation is: false [2023-12-16 17:40:23,344 INFO L899 garLoopResultBuilder]: For program point L569(lines 568 613) no Hoare annotation was computed. [2023-12-16 17:40:23,344 INFO L899 garLoopResultBuilder]: For program point L598(lines 598 609) no Hoare annotation was computed. [2023-12-16 17:40:23,344 INFO L895 garLoopResultBuilder]: At program point L590(line 590) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 (_ bv2 32))) (.cse5 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse1 (= ~systemActive~0 (_ bv1 32))) (.cse6 (= ~waterLevel~0 (_ bv1 32))) (.cse2 (= ~methaneLevelCritical~0 (_ bv1 32))) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| (_ bv0 32))) (.cse4 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse1 .cse3) (and .cse5 .cse1 .cse6 .cse3 .cse4) (and .cse1 .cse6 .cse2 .cse3 .cse4))) [2023-12-16 17:40:23,344 INFO L895 garLoopResultBuilder]: At program point L611(lines 568 613) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 (_ bv2 32))) (.cse5 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse1 (= ~systemActive~0 (_ bv1 32))) (.cse6 (= ~waterLevel~0 (_ bv1 32))) (.cse2 (= ~methaneLevelCritical~0 (_ bv1 32))) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| (_ bv0 32))) (.cse4 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse1 .cse3) (and .cse5 .cse1 .cse6 .cse3 .cse4) (and .cse1 .cse6 .cse2 .cse3 .cse4))) [2023-12-16 17:40:23,345 INFO L899 garLoopResultBuilder]: For program point L578(lines 578 584) no Hoare annotation was computed. [2023-12-16 17:40:23,345 INFO L899 garLoopResultBuilder]: For program point L578-1(lines 578 584) no Hoare annotation was computed. [2023-12-16 17:40:23,345 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-16 17:40:23,345 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-16 17:40:23,345 INFO L899 garLoopResultBuilder]: For program point L286(lines 286 293) no Hoare annotation was computed. [2023-12-16 17:40:23,345 INFO L899 garLoopResultBuilder]: For program point L604(lines 604 608) no Hoare annotation was computed. [2023-12-16 17:40:23,345 INFO L899 garLoopResultBuilder]: For program point L286-2(lines 286 293) no Hoare annotation was computed. [2023-12-16 17:40:23,345 INFO L895 garLoopResultBuilder]: At program point L604-2(lines 598 609) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 (_ bv2 32))) (.cse4 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse1 (= ~systemActive~0 (_ bv1 32))) (.cse5 (= ~waterLevel~0 (_ bv1 32))) (.cse2 (= ~methaneLevelCritical~0 (_ bv1 32))) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| (_ bv0 32))) (.cse6 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse4 .cse1 .cse3) (and .cse4 .cse1 .cse5 .cse3 .cse6) (and .cse1 .cse5 .cse2 .cse3 .cse6))) [2023-12-16 17:40:23,345 INFO L899 garLoopResultBuilder]: For program point L588(lines 588 594) no Hoare annotation was computed. [2023-12-16 17:40:23,345 INFO L899 garLoopResultBuilder]: For program point L588-1(lines 588 594) no Hoare annotation was computed. [2023-12-16 17:40:23,345 INFO L899 garLoopResultBuilder]: For program point L617(lines 558 621) no Hoare annotation was computed. [2023-12-16 17:40:23,345 INFO L895 garLoopResultBuilder]: At program point L580(line 580) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 (_ bv2 32))) (.cse5 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse1 (= ~systemActive~0 (_ bv1 32))) (.cse6 (= ~waterLevel~0 (_ bv1 32))) (.cse2 (= ~methaneLevelCritical~0 (_ bv1 32))) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| (_ bv0 32))) (.cse4 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse1 .cse3) (and .cse5 .cse1 .cse6 .cse3 .cse4) (and .cse1 .cse6 .cse2 .cse3 .cse4))) [2023-12-16 17:40:23,345 INFO L899 garLoopResultBuilder]: For program point L382(lines 382 399) no Hoare annotation was computed. [2023-12-16 17:40:23,345 INFO L895 garLoopResultBuilder]: At program point L397(line 397) the Hoare annotation is: (let ((.cse1 (not (= ~waterLevel~0 (_ bv2 32)))) (.cse4 (not (= ~methaneLevelCritical~0 (_ bv0 32)))) (.cse0 (not (= ~systemActive~0 (_ bv1 32)))) (.cse2 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse3 (not (= ~methaneLevelCritical~0 (_ bv1 32)))) (.cse5 (not (= ~waterLevel~0 (_ bv1 32))))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse2 .cse4) (or .cse0 .cse2 .cse4 .cse5) (or .cse0 .cse2 .cse3 .cse5))) [2023-12-16 17:40:23,345 INFO L899 garLoopResultBuilder]: For program point L397-1(lines 378 402) no Hoare annotation was computed. [2023-12-16 17:40:23,346 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 378 402) the Hoare annotation is: (let ((.cse2 (not (= ~methaneLevelCritical~0 (_ bv1 32)))) (.cse5 (not (= ~waterLevel~0 (_ bv2 32)))) (.cse0 (not (= ~systemActive~0 (_ bv1 32)))) (.cse1 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse6 (not (= ~methaneLevelCritical~0 (_ bv0 32)))) (.cse3 (not (= ~waterLevel~0 (_ bv1 32)))) (.cse4 (= (_ bv0 32) ~pumpRunning~0))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse5 .cse1 .cse2 .cse4) (or .cse0 .cse5 .cse1 .cse6 .cse4) (or .cse0 .cse1 .cse6 .cse3 .cse4))) [2023-12-16 17:40:23,346 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDry_returnLabel#1(lines 175 188) no Hoare annotation was computed. [2023-12-16 17:40:23,346 INFO L899 garLoopResultBuilder]: For program point L445(lines 445 451) no Hoare annotation was computed. [2023-12-16 17:40:23,346 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 378 402) no Hoare annotation was computed. [2023-12-16 17:40:23,346 INFO L899 garLoopResultBuilder]: For program point L445-2(lines 438 454) no Hoare annotation was computed. [2023-12-16 17:40:23,346 INFO L895 garLoopResultBuilder]: At program point L468(line 468) the Hoare annotation is: (let ((.cse1 (not (= ~waterLevel~0 (_ bv2 32)))) (.cse4 (= (_ bv0 32) ~pumpRunning~0)) (.cse5 (not (= ~methaneLevelCritical~0 (_ bv0 32)))) (.cse0 (not (= ~systemActive~0 (_ bv1 32)))) (.cse2 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse3 (not (= ~methaneLevelCritical~0 (_ bv1 32)))) (.cse6 (not (= ~waterLevel~0 (_ bv1 32))))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse1 .cse2 .cse5 .cse4) (or .cse0 .cse2 .cse5 .cse6) (or .cse0 .cse2 .cse3 .cse6))) [2023-12-16 17:40:23,346 INFO L899 garLoopResultBuilder]: For program point L179(lines 179 185) no Hoare annotation was computed. [2023-12-16 17:40:23,346 INFO L899 garLoopResultBuilder]: For program point L468-1(line 468) no Hoare annotation was computed. [2023-12-16 17:40:23,346 INFO L899 garLoopResultBuilder]: For program point L528(lines 528 532) no Hoare annotation was computed. [2023-12-16 17:40:23,346 INFO L899 garLoopResultBuilder]: For program point L528-2(lines 528 532) no Hoare annotation was computed. [2023-12-16 17:40:23,346 INFO L895 garLoopResultBuilder]: At program point L392(line 392) the Hoare annotation is: (let ((.cse10 (= |old(~pumpRunning~0)| (_ bv0 32))) (.cse8 (= |processEnvironment__wrappee__highWaterSensor_~tmp~2#1| (_ bv0 32))) (.cse9 (= ~systemActive~0 (_ bv1 32))) (.cse11 (= (_ bv0 32) ~pumpRunning~0))) (let ((.cse1 (not (= ~waterLevel~0 (_ bv2 32)))) (.cse3 (not (= ~methaneLevelCritical~0 (_ bv1 32)))) (.cse4 (and .cse8 .cse9 .cse11)) (.cse0 (not .cse9)) (.cse2 (not .cse10)) (.cse5 (not (= ~methaneLevelCritical~0 (_ bv0 32)))) (.cse7 (not (= ~waterLevel~0 (_ bv1 32)))) (.cse6 (and .cse8 .cse9 .cse10 .cse11))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse1 .cse2 .cse5 .cse6) (or .cse0 .cse2 .cse3 .cse4 .cse7) (or .cse0 .cse2 .cse5 .cse7 .cse6)))) [2023-12-16 17:40:23,346 INFO L899 garLoopResultBuilder]: For program point L386(lines 386 394) no Hoare annotation was computed. [2023-12-16 17:40:23,347 INFO L899 garLoopResultBuilder]: For program point L114-1(lines 110 121) no Hoare annotation was computed. [2023-12-16 17:40:23,347 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 110 121) no Hoare annotation was computed. [2023-12-16 17:40:23,348 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 110 121) the Hoare annotation is: (let ((.cse0 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse1 (= ~waterLevel~0 (_ bv2 32))) (.cse5 (not (= ~methaneLevelCritical~0 (_ bv0 32)))) (.cse2 (not (= (_ bv0 32) ~pumpRunning~0))) (.cse3 (not (= ~systemActive~0 (_ bv1 32)))) (.cse6 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (.cse4 (not (= ~methaneLevelCritical~0 (_ bv1 32)))) (.cse7 (= ~waterLevel~0 (_ bv1 32)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse1 .cse3 .cse5) (or .cse2 .cse3 .cse6 .cse7 .cse5) (or .cse2 .cse3 .cse6 .cse4 .cse7))) [2023-12-16 17:40:23,350 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:40:23,351 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 17:40:23,360 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 05:40:23 BoogieIcfgContainer [2023-12-16 17:40:23,360 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 17:40:23,361 INFO L158 Benchmark]: Toolchain (without parser) took 8215.79ms. Allocated memory was 164.6MB in the beginning and 280.0MB in the end (delta: 115.3MB). Free memory was 111.3MB in the beginning and 241.1MB in the end (delta: -129.8MB). Peak memory consumption was 147.0MB. Max. memory is 8.0GB. [2023-12-16 17:40:23,361 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 164.6MB. Free memory was 112.7MB in the beginning and 112.5MB in the end (delta: 157.0kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 17:40:23,361 INFO L158 Benchmark]: CACSL2BoogieTranslator took 448.52ms. Allocated memory is still 164.6MB. Free memory was 111.0MB in the beginning and 84.6MB in the end (delta: 26.3MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. [2023-12-16 17:40:23,361 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.82ms. Allocated memory is still 164.6MB. Free memory was 84.6MB in the beginning and 82.3MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-16 17:40:23,362 INFO L158 Benchmark]: Boogie Preprocessor took 65.80ms. Allocated memory is still 164.6MB. Free memory was 82.3MB in the beginning and 79.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-16 17:40:23,362 INFO L158 Benchmark]: RCFGBuilder took 419.94ms. Allocated memory was 164.6MB in the beginning and 232.8MB in the end (delta: 68.2MB). Free memory was 79.8MB in the beginning and 181.4MB in the end (delta: -101.5MB). Peak memory consumption was 14.9MB. Max. memory is 8.0GB. [2023-12-16 17:40:23,362 INFO L158 Benchmark]: TraceAbstraction took 7234.68ms. Allocated memory was 232.8MB in the beginning and 280.0MB in the end (delta: 47.2MB). Free memory was 180.8MB in the beginning and 241.1MB in the end (delta: -60.3MB). Peak memory consumption was 146.9MB. Max. memory is 8.0GB. [2023-12-16 17:40:23,363 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 164.6MB. Free memory was 112.7MB in the beginning and 112.5MB in the end (delta: 157.0kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 448.52ms. Allocated memory is still 164.6MB. Free memory was 111.0MB in the beginning and 84.6MB in the end (delta: 26.3MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 42.82ms. Allocated memory is still 164.6MB. Free memory was 84.6MB in the beginning and 82.3MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 65.80ms. Allocated memory is still 164.6MB. Free memory was 82.3MB in the beginning and 79.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 419.94ms. Allocated memory was 164.6MB in the beginning and 232.8MB in the end (delta: 68.2MB). Free memory was 79.8MB in the beginning and 181.4MB in the end (delta: -101.5MB). Peak memory consumption was 14.9MB. Max. memory is 8.0GB. * TraceAbstraction took 7234.68ms. Allocated memory was 232.8MB in the beginning and 280.0MB in the end (delta: 47.2MB). Free memory was 180.8MB in the beginning and 241.1MB in the end (delta: -60.3MB). Peak memory consumption was 146.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [87] - GenericResultAtLocation [Line: 198]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [198] - GenericResultAtLocation [Line: 299]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [299] - GenericResultAtLocation [Line: 340]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [340] - GenericResultAtLocation [Line: 557]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [557] - GenericResultAtLocation [Line: 622]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [622] - GenericResultAtLocation [Line: 988]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [988] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 993]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 72 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.2s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 983 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 959 mSDsluCounter, 2426 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1536 mSDsCounter, 294 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1201 IncrementalHoareTripleChecker+Invalid, 1495 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 294 mSolverCounterUnsat, 890 mSDtfsCounter, 1201 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 587 GetRequests, 536 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1228occurred in iteration=11, InterpolantAutomatonStates: 70, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 12 MinimizatonAttempts, 120 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 21 LocationsWithAnnotation, 886 PreInvPairs, 939 NumberOfFragments, 1172 HoareAnnotationTreeSize, 886 FormulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 21 FormulaSimplificationsInter, 1084 FormulaSimplificationTreeSizeReductionInter, 1.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 494 NumberOfCodeBlocks, 494 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 561 ConstructedInterpolants, 0 QuantifiedInterpolants, 1115 SizeOfPredicates, 16 NumberOfNonLiveVariables, 1357 ConjunctsInSsa, 58 ConjunctsInUnsatCore, 13 InterpolantComputations, 11 PerfectInterpolantSequences, 75/86 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 567]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 211]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 568]: Loop Invariant Derived loop invariant: ((((((((waterLevel == 2) && (systemActive == 1)) && (methaneLevelCritical == 1)) && (splverifierCounter == 0)) && (0 == pumpRunning)) || ((((waterLevel == 2) && (methaneLevelCritical == 0)) && (systemActive == 1)) && (splverifierCounter == 0))) || (((((methaneLevelCritical == 0) && (systemActive == 1)) && (waterLevel == 1)) && (splverifierCounter == 0)) && (0 == pumpRunning))) || (((((systemActive == 1) && (waterLevel == 1)) && (methaneLevelCritical == 1)) && (splverifierCounter == 0)) && (0 == pumpRunning))) RESULT: Ultimate proved your program to be correct! [2023-12-16 17:40:23,392 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...