/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product61.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 17:41:05,429 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 17:41:05,467 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 17:41:05,470 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 17:41:05,471 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 17:41:05,485 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 17:41:05,485 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 17:41:05,486 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 17:41:05,486 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 17:41:05,486 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 17:41:05,486 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 17:41:05,487 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 17:41:05,487 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 17:41:05,487 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 17:41:05,487 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 17:41:05,488 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 17:41:05,488 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 17:41:05,488 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 17:41:05,488 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 17:41:05,489 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 17:41:05,489 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 17:41:05,489 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 17:41:05,489 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 17:41:05,490 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 17:41:05,490 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 17:41:05,490 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 17:41:05,490 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 17:41:05,490 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 17:41:05,491 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 17:41:05,491 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 17:41:05,491 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 17:41:05,491 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 17:41:05,491 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 17:41:05,491 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 17:41:05,491 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:41:05,492 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 17:41:05,492 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 17:41:05,492 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 17:41:05,492 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 17:41:05,492 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 17:41:05,492 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 17:41:05,493 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 17:41:05,493 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 17:41:05,493 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 17:41:05,493 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 17:41:05,493 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 17:41:05,493 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 17:41:05,634 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 17:41:05,652 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 17:41:05,654 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 17:41:05,655 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 17:41:05,655 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 17:41:05,656 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product61.cil.c [2023-12-16 17:41:06,648 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 17:41:06,843 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 17:41:06,844 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product61.cil.c [2023-12-16 17:41:06,874 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65ef98ad4/84d2de41716143018f71296bdea9ef83/FLAGf07d0ff50 [2023-12-16 17:41:06,890 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65ef98ad4/84d2de41716143018f71296bdea9ef83 [2023-12-16 17:41:06,891 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 17:41:06,892 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 17:41:06,893 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 17:41:06,893 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 17:41:06,903 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 17:41:06,904 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:41:06" (1/1) ... [2023-12-16 17:41:06,905 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46fb0280 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:41:06, skipping insertion in model container [2023-12-16 17:41:06,905 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:41:06" (1/1) ... [2023-12-16 17:41:06,948 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 17:41:07,103 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product61.cil.c[7381,7394] [2023-12-16 17:41:07,177 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:41:07,191 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-16 17:41:07,199 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 17:41:07,224 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product61.cil.c[7381,7394] [2023-12-16 17:41:07,250 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:41:07,253 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 17:41:07,259 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [49] [2023-12-16 17:41:07,260 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [118] [2023-12-16 17:41:07,260 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [368] [2023-12-16 17:41:07,261 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [472] [2023-12-16 17:41:07,261 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [481] [2023-12-16 17:41:07,261 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [580] [2023-12-16 17:41:07,261 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [614] [2023-12-16 17:41:07,261 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [649] [2023-12-16 17:41:07,281 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product61.cil.c[7381,7394] [2023-12-16 17:41:07,312 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:41:07,348 INFO L206 MainTranslator]: Completed translation [2023-12-16 17:41:07,348 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:41:07 WrapperNode [2023-12-16 17:41:07,349 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 17:41:07,349 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 17:41:07,349 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 17:41:07,349 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 17:41:07,354 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:41:07" (1/1) ... [2023-12-16 17:41:07,366 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:41:07" (1/1) ... [2023-12-16 17:41:07,382 INFO L138 Inliner]: procedures = 59, calls = 105, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 213 [2023-12-16 17:41:07,382 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 17:41:07,383 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 17:41:07,383 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 17:41:07,383 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 17:41:07,395 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:41:07" (1/1) ... [2023-12-16 17:41:07,395 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:41:07" (1/1) ... [2023-12-16 17:41:07,410 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:41:07" (1/1) ... [2023-12-16 17:41:07,437 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 17:41:07,437 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:41:07" (1/1) ... [2023-12-16 17:41:07,437 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:41:07" (1/1) ... [2023-12-16 17:41:07,445 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:41:07" (1/1) ... [2023-12-16 17:41:07,448 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:41:07" (1/1) ... [2023-12-16 17:41:07,449 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:41:07" (1/1) ... [2023-12-16 17:41:07,450 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:41:07" (1/1) ... [2023-12-16 17:41:07,452 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 17:41:07,453 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 17:41:07,453 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 17:41:07,453 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 17:41:07,453 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:41:07" (1/1) ... [2023-12-16 17:41:07,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:41:07,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 17:41:07,511 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 17:41:07,531 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 17:41:07,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 17:41:07,537 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-12-16 17:41:07,538 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-12-16 17:41:07,538 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-12-16 17:41:07,538 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-12-16 17:41:07,538 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-16 17:41:07,538 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-16 17:41:07,538 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-16 17:41:07,538 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-16 17:41:07,538 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-12-16 17:41:07,539 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-12-16 17:41:07,539 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-12-16 17:41:07,539 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-12-16 17:41:07,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 17:41:07,540 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2023-12-16 17:41:07,540 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2023-12-16 17:41:07,540 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-12-16 17:41:07,540 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-12-16 17:41:07,540 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-12-16 17:41:07,540 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-12-16 17:41:07,541 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-12-16 17:41:07,541 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-12-16 17:41:07,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 17:41:07,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 17:41:07,597 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 17:41:07,598 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 17:41:07,797 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 17:41:07,871 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 17:41:07,871 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-16 17:41:07,871 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:41:07 BoogieIcfgContainer [2023-12-16 17:41:07,871 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 17:41:07,875 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 17:41:07,876 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 17:41:07,878 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 17:41:07,878 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 05:41:06" (1/3) ... [2023-12-16 17:41:07,879 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5da0a6e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:41:07, skipping insertion in model container [2023-12-16 17:41:07,879 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:41:07" (2/3) ... [2023-12-16 17:41:07,879 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5da0a6e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:41:07, skipping insertion in model container [2023-12-16 17:41:07,879 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:41:07" (3/3) ... [2023-12-16 17:41:07,880 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product61.cil.c [2023-12-16 17:41:07,894 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 17:41:07,894 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 17:41:07,927 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 17:41:07,931 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;@266eb176, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 17:41:07,931 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 17:41:07,955 INFO L276 IsEmpty]: Start isEmpty. Operand has 89 states, 59 states have (on average 1.5084745762711864) internal successors, (89), 69 states have internal predecessors, (89), 18 states have call successors, (18), 10 states have call predecessors, (18), 10 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-16 17:41:07,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-16 17:41:07,961 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:41:07,962 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 17:41:07,962 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:41:07,970 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:41:07,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1735961070, now seen corresponding path program 1 times [2023-12-16 17:41:07,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:41:07,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [331010457] [2023-12-16 17:41:07,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:41:07,981 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 17:41:07,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:41:07,983 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 17:41:08,016 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 17:41:08,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:41:08,069 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 17:41:08,072 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:41:08,093 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 17:41:08,093 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:41:08,093 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:41:08,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [331010457] [2023-12-16 17:41:08,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [331010457] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:41:08,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:41:08,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:41:08,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396173239] [2023-12-16 17:41:08,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:41:08,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 17:41:08,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:41:08,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 17:41:08,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 17:41:08,125 INFO L87 Difference]: Start difference. First operand has 89 states, 59 states have (on average 1.5084745762711864) internal successors, (89), 69 states have internal predecessors, (89), 18 states have call successors, (18), 10 states have call predecessors, (18), 10 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) 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 17:41:08,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:41:08,183 INFO L93 Difference]: Finished difference Result 176 states and 251 transitions. [2023-12-16 17:41:08,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 17:41:08,185 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 17:41:08,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:41:08,192 INFO L225 Difference]: With dead ends: 176 [2023-12-16 17:41:08,192 INFO L226 Difference]: Without dead ends: 84 [2023-12-16 17:41:08,195 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 17:41:08,197 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:41:08,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 104 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:41:08,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-12-16 17:41:08,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2023-12-16 17:41:08,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 56 states have (on average 1.4107142857142858) internal successors, (79), 65 states have internal predecessors, (79), 18 states have call successors, (18), 10 states have call predecessors, (18), 9 states have return successors, (17), 12 states have call predecessors, (17), 17 states have call successors, (17) [2023-12-16 17:41:08,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 114 transitions. [2023-12-16 17:41:08,270 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 114 transitions. Word has length 17 [2023-12-16 17:41:08,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:41:08,270 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 114 transitions. [2023-12-16 17:41:08,270 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 17:41:08,271 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 114 transitions. [2023-12-16 17:41:08,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-16 17:41:08,273 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:41:08,274 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 17:41:08,278 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 17:41:08,478 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 17:41:08,479 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:41:08,480 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:41:08,480 INFO L85 PathProgramCache]: Analyzing trace with hash 260613743, now seen corresponding path program 1 times [2023-12-16 17:41:08,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:41:08,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1511404569] [2023-12-16 17:41:08,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:41:08,481 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 17:41:08,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:41:08,484 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 17:41:08,493 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 17:41:08,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:41:08,552 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:41:08,553 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:41:08,572 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 17:41:08,573 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:41:08,573 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:41:08,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1511404569] [2023-12-16 17:41:08,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1511404569] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:41:08,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:41:08,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:41:08,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406663688] [2023-12-16 17:41:08,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:41:08,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:41:08,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:41:08,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:41:08,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:41:08,579 INFO L87 Difference]: Start difference. First operand 84 states and 114 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 17:41:08,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:41:08,620 INFO L93 Difference]: Finished difference Result 141 states and 191 transitions. [2023-12-16 17:41:08,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:41:08,620 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 17:41:08,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:41:08,621 INFO L225 Difference]: With dead ends: 141 [2023-12-16 17:41:08,621 INFO L226 Difference]: Without dead ends: 76 [2023-12-16 17:41:08,622 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 17:41:08,623 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 11 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:41:08,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 166 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:41:08,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2023-12-16 17:41:08,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2023-12-16 17:41:08,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 51 states have (on average 1.4313725490196079) internal successors, (73), 60 states have internal predecessors, (73), 15 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-16 17:41:08,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 103 transitions. [2023-12-16 17:41:08,629 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 103 transitions. Word has length 18 [2023-12-16 17:41:08,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:41:08,629 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 103 transitions. [2023-12-16 17:41:08,629 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 17:41:08,629 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 103 transitions. [2023-12-16 17:41:08,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-16 17:41:08,630 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:41:08,630 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 17:41:08,634 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-16 17:41:08,832 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 17:41:08,833 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:41:08,833 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:41:08,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1473546257, now seen corresponding path program 1 times [2023-12-16 17:41:08,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:41:08,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [379463026] [2023-12-16 17:41:08,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:41:08,834 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 17:41:08,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:41:08,835 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 17:41:08,836 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 17:41:08,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:41:08,887 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:41:08,890 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:41:08,917 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 17:41:08,917 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:41:08,919 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:41:08,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [379463026] [2023-12-16 17:41:08,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [379463026] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:41:08,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:41:08,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:41:08,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205840894] [2023-12-16 17:41:08,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:41:08,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:41:08,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:41:08,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:41:08,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:41:08,923 INFO L87 Difference]: Start difference. First operand 76 states and 103 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 17:41:08,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:41:08,972 INFO L93 Difference]: Finished difference Result 150 states and 205 transitions. [2023-12-16 17:41:08,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:41:08,972 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 17:41:08,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:41:08,977 INFO L225 Difference]: With dead ends: 150 [2023-12-16 17:41:08,977 INFO L226 Difference]: Without dead ends: 76 [2023-12-16 17:41:08,977 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 17:41:08,978 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 91 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:41:08,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 88 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:41:08,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2023-12-16 17:41:08,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2023-12-16 17:41:08,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 51 states have (on average 1.411764705882353) internal successors, (72), 60 states have internal predecessors, (72), 15 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-16 17:41:08,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 102 transitions. [2023-12-16 17:41:08,984 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 102 transitions. Word has length 21 [2023-12-16 17:41:08,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:41:08,985 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 102 transitions. [2023-12-16 17:41:08,985 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 17:41:08,985 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 102 transitions. [2023-12-16 17:41:08,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-12-16 17:41:08,986 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:41:08,986 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] [2023-12-16 17:41:08,988 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 17:41:09,188 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 17:41:09,189 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:41:09,189 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:41:09,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1105962929, now seen corresponding path program 1 times [2023-12-16 17:41:09,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:41:09,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [591396977] [2023-12-16 17:41:09,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:41:09,190 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 17:41:09,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:41:09,191 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 17:41:09,192 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 17:41:09,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:41:09,267 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:41:09,272 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:41:09,362 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 17:41:09,362 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:41:09,362 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:41:09,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [591396977] [2023-12-16 17:41:09,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [591396977] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:41:09,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:41:09,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:41:09,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835790485] [2023-12-16 17:41:09,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:41:09,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:41:09,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:41:09,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:41:09,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:41:09,368 INFO L87 Difference]: Start difference. First operand 76 states and 102 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 3 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-16 17:41:09,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:41:09,613 INFO L93 Difference]: Finished difference Result 228 states and 302 transitions. [2023-12-16 17:41:09,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 17:41:09,613 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 3 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 34 [2023-12-16 17:41:09,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:41:09,614 INFO L225 Difference]: With dead ends: 228 [2023-12-16 17:41:09,614 INFO L226 Difference]: Without dead ends: 154 [2023-12-16 17:41:09,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:41:09,615 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 179 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:41:09,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 221 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:41:09,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2023-12-16 17:41:09,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 148. [2023-12-16 17:41:09,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 102 states have (on average 1.3235294117647058) internal successors, (135), 111 states have internal predecessors, (135), 22 states have call successors, (22), 18 states have call predecessors, (22), 23 states have return successors, (29), 24 states have call predecessors, (29), 22 states have call successors, (29) [2023-12-16 17:41:09,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 186 transitions. [2023-12-16 17:41:09,629 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 186 transitions. Word has length 34 [2023-12-16 17:41:09,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:41:09,629 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 186 transitions. [2023-12-16 17:41:09,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 3 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-16 17:41:09,629 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 186 transitions. [2023-12-16 17:41:09,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-16 17:41:09,630 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:41:09,630 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:41:09,636 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-12-16 17:41:09,832 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 17:41:09,833 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:41:09,833 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:41:09,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1638769303, now seen corresponding path program 1 times [2023-12-16 17:41:09,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:41:09,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [182312278] [2023-12-16 17:41:09,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:41:09,834 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 17:41:09,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:41:09,835 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 17:41:09,837 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 17:41:09,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:41:09,906 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:41:09,907 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:41:09,976 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 17:41:09,976 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:41:09,978 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:41:09,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [182312278] [2023-12-16 17:41:09,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [182312278] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:41:09,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:41:09,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:41:09,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910100110] [2023-12-16 17:41:09,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:41:09,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:41:09,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:41:09,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:41:09,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:41:09,979 INFO L87 Difference]: Start difference. First operand 148 states and 186 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-12-16 17:41:10,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:41:10,078 INFO L93 Difference]: Finished difference Result 382 states and 499 transitions. [2023-12-16 17:41:10,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:41:10,079 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 41 [2023-12-16 17:41:10,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:41:10,081 INFO L225 Difference]: With dead ends: 382 [2023-12-16 17:41:10,081 INFO L226 Difference]: Without dead ends: 236 [2023-12-16 17:41:10,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 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 17:41:10,082 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 30 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:41:10,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 253 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:41:10,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2023-12-16 17:41:10,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 234. [2023-12-16 17:41:10,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 163 states have (on average 1.3006134969325154) internal successors, (212), 175 states have internal predecessors, (212), 35 states have call successors, (35), 30 states have call predecessors, (35), 35 states have return successors, (48), 37 states have call predecessors, (48), 35 states have call successors, (48) [2023-12-16 17:41:10,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 295 transitions. [2023-12-16 17:41:10,129 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 295 transitions. Word has length 41 [2023-12-16 17:41:10,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:41:10,130 INFO L495 AbstractCegarLoop]: Abstraction has 234 states and 295 transitions. [2023-12-16 17:41:10,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-12-16 17:41:10,130 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 295 transitions. [2023-12-16 17:41:10,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-16 17:41:10,136 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:41:10,136 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:41:10,142 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 17:41:10,340 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 17:41:10,341 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:41:10,341 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:41:10,341 INFO L85 PathProgramCache]: Analyzing trace with hash -2134046461, now seen corresponding path program 1 times [2023-12-16 17:41:10,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:41:10,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1641377378] [2023-12-16 17:41:10,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:41:10,342 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 17:41:10,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:41:10,343 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 17:41:10,352 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-16 17:41:10,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:41:10,401 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 17:41:10,403 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:41:10,470 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 17:41:10,470 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:41:10,470 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:41:10,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1641377378] [2023-12-16 17:41:10,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1641377378] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:41:10,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:41:10,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:41:10,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098909191] [2023-12-16 17:41:10,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:41:10,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 17:41:10,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:41:10,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 17:41:10,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:41:10,472 INFO L87 Difference]: Start difference. First operand 234 states and 295 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 4 states have internal predecessors, (34), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2023-12-16 17:41:10,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:41:10,899 INFO L93 Difference]: Finished difference Result 654 states and 854 transitions. [2023-12-16 17:41:10,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 17:41:10,899 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 4 states have internal predecessors, (34), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) Word has length 45 [2023-12-16 17:41:10,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:41:10,903 INFO L225 Difference]: With dead ends: 654 [2023-12-16 17:41:10,903 INFO L226 Difference]: Without dead ends: 508 [2023-12-16 17:41:10,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-16 17:41:10,907 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 261 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 17:41:10,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 296 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 17:41:10,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2023-12-16 17:41:11,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 491. [2023-12-16 17:41:11,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 343 states have (on average 1.3061224489795917) internal successors, (448), 370 states have internal predecessors, (448), 73 states have call successors, (73), 58 states have call predecessors, (73), 74 states have return successors, (102), 79 states have call predecessors, (102), 73 states have call successors, (102) [2023-12-16 17:41:11,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 623 transitions. [2023-12-16 17:41:11,018 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 623 transitions. Word has length 45 [2023-12-16 17:41:11,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:41:11,020 INFO L495 AbstractCegarLoop]: Abstraction has 491 states and 623 transitions. [2023-12-16 17:41:11,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 4 states have internal predecessors, (34), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2023-12-16 17:41:11,020 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 623 transitions. [2023-12-16 17:41:11,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-16 17:41:11,021 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:41:11,021 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:41:11,030 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 17:41:11,224 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 17:41:11,225 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:41:11,225 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:41:11,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1915191743, now seen corresponding path program 1 times [2023-12-16 17:41:11,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:41:11,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1975101979] [2023-12-16 17:41:11,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:41:11,226 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 17:41:11,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:41:11,227 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 17:41:11,229 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 17:41:11,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:41:11,271 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:41:11,273 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:41:11,288 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 17:41:11,288 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:41:11,288 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:41:11,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1975101979] [2023-12-16 17:41:11,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1975101979] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:41:11,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:41:11,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:41:11,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702498218] [2023-12-16 17:41:11,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:41:11,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:41:11,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:41:11,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:41:11,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:41:11,290 INFO L87 Difference]: Start difference. First operand 491 states and 623 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:41:11,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:41:11,372 INFO L93 Difference]: Finished difference Result 916 states and 1180 transitions. [2023-12-16 17:41:11,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:41:11,372 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 45 [2023-12-16 17:41:11,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:41:11,375 INFO L225 Difference]: With dead ends: 916 [2023-12-16 17:41:11,376 INFO L226 Difference]: Without dead ends: 508 [2023-12-16 17:41:11,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 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 17:41:11,378 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 10 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:41:11,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 284 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:41:11,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2023-12-16 17:41:11,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 493. [2023-12-16 17:41:11,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 345 states have (on average 1.3014492753623188) internal successors, (449), 372 states have internal predecessors, (449), 73 states have call successors, (73), 58 states have call predecessors, (73), 74 states have return successors, (102), 79 states have call predecessors, (102), 73 states have call successors, (102) [2023-12-16 17:41:11,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 624 transitions. [2023-12-16 17:41:11,419 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 624 transitions. Word has length 45 [2023-12-16 17:41:11,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:41:11,420 INFO L495 AbstractCegarLoop]: Abstraction has 493 states and 624 transitions. [2023-12-16 17:41:11,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:41:11,420 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 624 transitions. [2023-12-16 17:41:11,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-16 17:41:11,421 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:41:11,421 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:41:11,427 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 17:41:11,627 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 17:41:11,627 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:41:11,628 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:41:11,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1562127103, now seen corresponding path program 1 times [2023-12-16 17:41:11,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:41:11,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [264590656] [2023-12-16 17:41:11,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:41:11,629 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 17:41:11,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:41:11,630 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 17:41:11,631 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 17:41:11,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:41:11,682 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:41:11,683 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:41:11,696 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 17:41:11,696 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:41:11,696 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:41:11,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [264590656] [2023-12-16 17:41:11,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [264590656] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:41:11,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:41:11,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:41:11,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712299958] [2023-12-16 17:41:11,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:41:11,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:41:11,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:41:11,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:41:11,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:41:11,698 INFO L87 Difference]: Start difference. First operand 493 states and 624 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:41:11,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:41:11,755 INFO L93 Difference]: Finished difference Result 1014 states and 1301 transitions. [2023-12-16 17:41:11,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:41:11,755 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 45 [2023-12-16 17:41:11,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:41:11,757 INFO L225 Difference]: With dead ends: 1014 [2023-12-16 17:41:11,757 INFO L226 Difference]: Without dead ends: 523 [2023-12-16 17:41:11,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 42 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 17:41:11,759 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 6 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:41:11,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 277 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:41:11,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2023-12-16 17:41:11,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 496. [2023-12-16 17:41:11,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 350 states have (on average 1.2942857142857143) internal successors, (453), 376 states have internal predecessors, (453), 72 states have call successors, (72), 57 states have call predecessors, (72), 73 states have return successors, (101), 78 states have call predecessors, (101), 72 states have call successors, (101) [2023-12-16 17:41:11,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 626 transitions. [2023-12-16 17:41:11,786 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 626 transitions. Word has length 45 [2023-12-16 17:41:11,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:41:11,787 INFO L495 AbstractCegarLoop]: Abstraction has 496 states and 626 transitions. [2023-12-16 17:41:11,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:41:11,787 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 626 transitions. [2023-12-16 17:41:11,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-16 17:41:11,788 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:41:11,788 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, 1, 1, 1, 1, 1] [2023-12-16 17:41:11,790 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 (9)] Ended with exit code 0 [2023-12-16 17:41:11,989 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 17:41:11,990 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:41:11,990 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:41:11,990 INFO L85 PathProgramCache]: Analyzing trace with hash 460109926, now seen corresponding path program 1 times [2023-12-16 17:41:11,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:41:11,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1100813400] [2023-12-16 17:41:11,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:41:11,991 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 17:41:11,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:41:11,992 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 17:41:11,998 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 17:41:12,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:41:12,041 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:41:12,042 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:41:12,065 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 17:41:12,065 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:41:12,065 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:41:12,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1100813400] [2023-12-16 17:41:12,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1100813400] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:41:12,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:41:12,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:41:12,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821506676] [2023-12-16 17:41:12,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:41:12,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:41:12,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:41:12,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:41:12,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:41:12,067 INFO L87 Difference]: Start difference. First operand 496 states and 626 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-12-16 17:41:12,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:41:12,176 INFO L93 Difference]: Finished difference Result 996 states and 1256 transitions. [2023-12-16 17:41:12,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:41:12,176 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 52 [2023-12-16 17:41:12,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:41:12,178 INFO L225 Difference]: With dead ends: 996 [2023-12-16 17:41:12,179 INFO L226 Difference]: Without dead ends: 502 [2023-12-16 17:41:12,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 49 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 17:41:12,181 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 63 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:41:12,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 304 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:41:12,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2023-12-16 17:41:12,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 482. [2023-12-16 17:41:12,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 339 states have (on average 1.2595870206489677) internal successors, (427), 365 states have internal predecessors, (427), 70 states have call successors, (70), 55 states have call predecessors, (70), 72 states have return successors, (90), 76 states have call predecessors, (90), 70 states have call successors, (90) [2023-12-16 17:41:12,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 587 transitions. [2023-12-16 17:41:12,212 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 587 transitions. Word has length 52 [2023-12-16 17:41:12,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:41:12,213 INFO L495 AbstractCegarLoop]: Abstraction has 482 states and 587 transitions. [2023-12-16 17:41:12,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-12-16 17:41:12,213 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 587 transitions. [2023-12-16 17:41:12,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-16 17:41:12,214 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:41:12,214 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, 1, 1, 1, 1, 1] [2023-12-16 17:41:12,250 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 17:41:12,415 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 17:41:12,416 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:41:12,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:41:12,416 INFO L85 PathProgramCache]: Analyzing trace with hash -115226343, now seen corresponding path program 1 times [2023-12-16 17:41:12,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:41:12,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [49716776] [2023-12-16 17:41:12,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:41:12,417 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 17:41:12,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:41:12,418 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 17:41:12,419 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 17:41:12,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:41:12,501 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 17:41:12,503 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:41:12,574 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 17:41:12,574 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:41:12,575 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:41:12,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [49716776] [2023-12-16 17:41:12,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [49716776] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:41:12,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:41:12,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:41:12,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569940663] [2023-12-16 17:41:12,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:41:12,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 17:41:12,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:41:12,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 17:41:12,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:41:12,577 INFO L87 Difference]: Start difference. First operand 482 states and 587 transitions. Second operand has 8 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2023-12-16 17:41:12,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:41:12,753 INFO L93 Difference]: Finished difference Result 1418 states and 1754 transitions. [2023-12-16 17:41:12,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 17:41:12,754 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) Word has length 52 [2023-12-16 17:41:12,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:41:12,757 INFO L225 Difference]: With dead ends: 1418 [2023-12-16 17:41:12,757 INFO L226 Difference]: Without dead ends: 938 [2023-12-16 17:41:12,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:41:12,758 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 62 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:41:12,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 447 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:41:12,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 938 states. [2023-12-16 17:41:12,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 938 to 936. [2023-12-16 17:41:12,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 936 states, 657 states have (on average 1.2450532724505328) internal successors, (818), 703 states have internal predecessors, (818), 138 states have call successors, (138), 109 states have call predecessors, (138), 140 states have return successors, (182), 148 states have call predecessors, (182), 138 states have call successors, (182) [2023-12-16 17:41:12,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 936 states to 936 states and 1138 transitions. [2023-12-16 17:41:12,826 INFO L78 Accepts]: Start accepts. Automaton has 936 states and 1138 transitions. Word has length 52 [2023-12-16 17:41:12,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:41:12,826 INFO L495 AbstractCegarLoop]: Abstraction has 936 states and 1138 transitions. [2023-12-16 17:41:12,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2023-12-16 17:41:12,827 INFO L276 IsEmpty]: Start isEmpty. Operand 936 states and 1138 transitions. [2023-12-16 17:41:12,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-16 17:41:12,827 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:41:12,828 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:41:12,849 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 17:41:13,033 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 17:41:13,034 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:41:13,034 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:41:13,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1776931773, now seen corresponding path program 1 times [2023-12-16 17:41:13,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:41:13,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [777245539] [2023-12-16 17:41:13,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:41:13,034 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 17:41:13,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:41:13,057 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 17:41:13,076 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 17:41:13,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:41:13,124 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:41:13,126 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:41:13,188 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-16 17:41:13,188 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:41:13,188 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:41:13,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [777245539] [2023-12-16 17:41:13,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [777245539] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:41:13,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:41:13,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 17:41:13,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715111907] [2023-12-16 17:41:13,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:41:13,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 17:41:13,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:41:13,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 17:41:13,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:41:13,190 INFO L87 Difference]: Start difference. First operand 936 states and 1138 transitions. Second operand has 6 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 17:41:13,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:41:13,334 INFO L93 Difference]: Finished difference Result 1844 states and 2246 transitions. [2023-12-16 17:41:13,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:41:13,334 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 56 [2023-12-16 17:41:13,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:41:13,338 INFO L225 Difference]: With dead ends: 1844 [2023-12-16 17:41:13,338 INFO L226 Difference]: Without dead ends: 910 [2023-12-16 17:41:13,341 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 51 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 17:41:13,341 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 56 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 630 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 17:41:13,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 630 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:41:13,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 910 states. [2023-12-16 17:41:13,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 910 to 910. [2023-12-16 17:41:13,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 631 states have (on average 1.1933438985736926) internal successors, (753), 677 states have internal predecessors, (753), 138 states have call successors, (138), 109 states have call predecessors, (138), 140 states have return successors, (175), 148 states have call predecessors, (175), 138 states have call successors, (175) [2023-12-16 17:41:13,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1066 transitions. [2023-12-16 17:41:13,388 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1066 transitions. Word has length 56 [2023-12-16 17:41:13,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:41:13,389 INFO L495 AbstractCegarLoop]: Abstraction has 910 states and 1066 transitions. [2023-12-16 17:41:13,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 17:41:13,389 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1066 transitions. [2023-12-16 17:41:13,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-16 17:41:13,391 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:41:13,391 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:41:13,395 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 17:41:13,593 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 17:41:13,593 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:41:13,594 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:41:13,594 INFO L85 PathProgramCache]: Analyzing trace with hash 2127014874, now seen corresponding path program 1 times [2023-12-16 17:41:13,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:41:13,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [412679860] [2023-12-16 17:41:13,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:41:13,594 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 17:41:13,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:41:13,595 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 17:41:13,611 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-16 17:41:13,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:41:13,644 INFO L262 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:41:13,648 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:41:13,660 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-16 17:41:13,660 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:41:13,660 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:41:13,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [412679860] [2023-12-16 17:41:13,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [412679860] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:41:13,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:41:13,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:41:13,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133818370] [2023-12-16 17:41:13,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:41:13,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:41:13,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:41:13,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:41:13,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:41:13,661 INFO L87 Difference]: Start difference. First operand 910 states and 1066 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:41:13,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:41:13,736 INFO L93 Difference]: Finished difference Result 1824 states and 2163 transitions. [2023-12-16 17:41:13,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:41:13,737 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 82 [2023-12-16 17:41:13,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:41:13,739 INFO L225 Difference]: With dead ends: 1824 [2023-12-16 17:41:13,739 INFO L226 Difference]: Without dead ends: 916 [2023-12-16 17:41:13,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 79 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 17:41:13,741 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 2 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 258 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 17:41:13,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 258 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:41:13,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 916 states. [2023-12-16 17:41:13,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 916 to 910. [2023-12-16 17:41:13,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 631 states have (on average 1.1838351822503963) internal successors, (747), 677 states have internal predecessors, (747), 138 states have call successors, (138), 109 states have call predecessors, (138), 140 states have return successors, (175), 148 states have call predecessors, (175), 138 states have call successors, (175) [2023-12-16 17:41:13,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1060 transitions. [2023-12-16 17:41:13,781 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1060 transitions. Word has length 82 [2023-12-16 17:41:13,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:41:13,781 INFO L495 AbstractCegarLoop]: Abstraction has 910 states and 1060 transitions. [2023-12-16 17:41:13,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:41:13,781 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1060 transitions. [2023-12-16 17:41:13,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-16 17:41:13,782 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:41:13,782 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:41:13,787 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 17:41:13,985 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 17:41:13,986 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:41:13,986 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:41:13,986 INFO L85 PathProgramCache]: Analyzing trace with hash -206377764, now seen corresponding path program 1 times [2023-12-16 17:41:13,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:41:13,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1496671766] [2023-12-16 17:41:13,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:41:13,986 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 17:41:13,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:41:14,045 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:41:14,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-16 17:41:14,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:41:14,097 INFO L262 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:41:14,099 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:41:14,107 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-16 17:41:14,108 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:41:14,108 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:41:14,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1496671766] [2023-12-16 17:41:14,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1496671766] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:41:14,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:41:14,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:41:14,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146342932] [2023-12-16 17:41:14,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:41:14,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:41:14,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:41:14,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:41:14,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:41:14,109 INFO L87 Difference]: Start difference. First operand 910 states and 1060 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:41:14,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:41:14,168 INFO L93 Difference]: Finished difference Result 1723 states and 2041 transitions. [2023-12-16 17:41:14,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:41:14,168 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 82 [2023-12-16 17:41:14,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:41:14,171 INFO L225 Difference]: With dead ends: 1723 [2023-12-16 17:41:14,171 INFO L226 Difference]: Without dead ends: 815 [2023-12-16 17:41:14,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 79 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 17:41:14,173 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 6 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:41:14,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 254 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:41:14,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 815 states. [2023-12-16 17:41:14,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 815 to 813. [2023-12-16 17:41:14,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 813 states, 566 states have (on average 1.185512367491166) internal successors, (671), 606 states have internal predecessors, (671), 126 states have call successors, (126), 101 states have call predecessors, (126), 120 states have return successors, (151), 128 states have call predecessors, (151), 126 states have call successors, (151) [2023-12-16 17:41:14,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 813 states to 813 states and 948 transitions. [2023-12-16 17:41:14,220 INFO L78 Accepts]: Start accepts. Automaton has 813 states and 948 transitions. Word has length 82 [2023-12-16 17:41:14,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:41:14,220 INFO L495 AbstractCegarLoop]: Abstraction has 813 states and 948 transitions. [2023-12-16 17:41:14,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:41:14,220 INFO L276 IsEmpty]: Start isEmpty. Operand 813 states and 948 transitions. [2023-12-16 17:41:14,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-16 17:41:14,221 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:41:14,221 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:41:14,229 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-16 17:41:14,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:41:14,424 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:41:14,424 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:41:14,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1762287868, now seen corresponding path program 1 times [2023-12-16 17:41:14,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:41:14,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2093978211] [2023-12-16 17:41:14,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:41:14,425 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 17:41:14,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:41:14,426 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:41:14,453 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-16 17:41:14,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:41:14,473 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:41:14,474 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:41:14,542 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-16 17:41:14,542 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:41:14,542 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:41:14,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2093978211] [2023-12-16 17:41:14,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2093978211] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:41:14,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:41:14,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:41:14,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818312325] [2023-12-16 17:41:14,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:41:14,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 17:41:14,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:41:14,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 17:41:14,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:41:14,544 INFO L87 Difference]: Start difference. First operand 813 states and 948 transitions. Second operand has 6 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:41:14,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:41:14,680 INFO L93 Difference]: Finished difference Result 1624 states and 1907 transitions. [2023-12-16 17:41:14,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:41:14,680 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 86 [2023-12-16 17:41:14,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:41:14,683 INFO L225 Difference]: With dead ends: 1624 [2023-12-16 17:41:14,683 INFO L226 Difference]: Without dead ends: 813 [2023-12-16 17:41:14,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 81 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 17:41:14,684 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 57 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:41:14,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 328 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:41:14,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 813 states. [2023-12-16 17:41:14,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 813 to 813. [2023-12-16 17:41:14,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 813 states, 566 states have (on average 1.1660777385159011) internal successors, (660), 606 states have internal predecessors, (660), 126 states have call successors, (126), 101 states have call predecessors, (126), 120 states have return successors, (151), 128 states have call predecessors, (151), 126 states have call successors, (151) [2023-12-16 17:41:14,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 813 states to 813 states and 937 transitions. [2023-12-16 17:41:14,719 INFO L78 Accepts]: Start accepts. Automaton has 813 states and 937 transitions. Word has length 86 [2023-12-16 17:41:14,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:41:14,719 INFO L495 AbstractCegarLoop]: Abstraction has 813 states and 937 transitions. [2023-12-16 17:41:14,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:41:14,719 INFO L276 IsEmpty]: Start isEmpty. Operand 813 states and 937 transitions. [2023-12-16 17:41:14,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-16 17:41:14,720 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:41:14,720 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:41:14,725 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 (15)] Forceful destruction successful, exit code 0 [2023-12-16 17:41:14,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:41:14,923 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:41:14,923 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:41:14,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1179183522, now seen corresponding path program 1 times [2023-12-16 17:41:14,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:41:14,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1054549465] [2023-12-16 17:41:14,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:41:14,924 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 17:41:14,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:41:14,925 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:41:14,936 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-16 17:41:14,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:41:14,972 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 17:41:14,973 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:41:15,043 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-16 17:41:15,043 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:41:15,043 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:41:15,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1054549465] [2023-12-16 17:41:15,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1054549465] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:41:15,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:41:15,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 17:41:15,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708345141] [2023-12-16 17:41:15,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:41:15,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 17:41:15,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:41:15,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 17:41:15,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:41:15,044 INFO L87 Difference]: Start difference. First operand 813 states and 937 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 5 states have call successors, (12), 3 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2023-12-16 17:41:15,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:41:15,514 INFO L93 Difference]: Finished difference Result 1995 states and 2335 transitions. [2023-12-16 17:41:15,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 17:41:15,514 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 5 states have call successors, (12), 3 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) Word has length 87 [2023-12-16 17:41:15,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:41:15,518 INFO L225 Difference]: With dead ends: 1995 [2023-12-16 17:41:15,518 INFO L226 Difference]: Without dead ends: 1271 [2023-12-16 17:41:15,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2023-12-16 17:41:15,520 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 308 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 17:41:15,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 269 Invalid, 688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 17:41:15,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1271 states. [2023-12-16 17:41:15,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1271 to 1233. [2023-12-16 17:41:15,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1233 states, 847 states have (on average 1.1475796930342386) internal successors, (972), 905 states have internal predecessors, (972), 191 states have call successors, (191), 164 states have call predecessors, (191), 194 states have return successors, (226), 194 states have call predecessors, (226), 191 states have call successors, (226) [2023-12-16 17:41:15,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1233 states to 1233 states and 1389 transitions. [2023-12-16 17:41:15,576 INFO L78 Accepts]: Start accepts. Automaton has 1233 states and 1389 transitions. Word has length 87 [2023-12-16 17:41:15,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:41:15,576 INFO L495 AbstractCegarLoop]: Abstraction has 1233 states and 1389 transitions. [2023-12-16 17:41:15,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 5 states have call successors, (12), 3 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2023-12-16 17:41:15,576 INFO L276 IsEmpty]: Start isEmpty. Operand 1233 states and 1389 transitions. [2023-12-16 17:41:15,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-16 17:41:15,577 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:41:15,577 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:41:15,582 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-12-16 17:41:15,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:41:15,780 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:41:15,780 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:41:15,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1842813690, now seen corresponding path program 1 times [2023-12-16 17:41:15,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:41:15,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2011305714] [2023-12-16 17:41:15,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:41:15,781 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 17:41:15,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:41:15,781 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:41:15,785 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-16 17:41:15,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:41:15,830 INFO L262 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 17:41:15,832 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:41:15,950 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-16 17:41:15,950 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:41:15,950 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:41:15,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2011305714] [2023-12-16 17:41:15,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2011305714] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:41:15,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:41:15,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:41:15,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683851035] [2023-12-16 17:41:15,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:41:15,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 17:41:15,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:41:15,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 17:41:15,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:41:15,952 INFO L87 Difference]: Start difference. First operand 1233 states and 1389 transitions. Second operand has 8 states, 6 states have (on average 9.333333333333334) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:41:16,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:41:16,183 INFO L93 Difference]: Finished difference Result 2377 states and 2682 transitions. [2023-12-16 17:41:16,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 17:41:16,186 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 9.333333333333334) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) Word has length 88 [2023-12-16 17:41:16,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:41:16,190 INFO L225 Difference]: With dead ends: 2377 [2023-12-16 17:41:16,190 INFO L226 Difference]: Without dead ends: 1233 [2023-12-16 17:41:16,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-12-16 17:41:16,193 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 36 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:41:16,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 522 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:41:16,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1233 states. [2023-12-16 17:41:16,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1233 to 1229. [2023-12-16 17:41:16,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1229 states, 847 states have (on average 1.1428571428571428) internal successors, (968), 901 states have internal predecessors, (968), 187 states have call successors, (187), 164 states have call predecessors, (187), 194 states have return successors, (222), 194 states have call predecessors, (222), 187 states have call successors, (222) [2023-12-16 17:41:16,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1229 states to 1229 states and 1377 transitions. [2023-12-16 17:41:16,246 INFO L78 Accepts]: Start accepts. Automaton has 1229 states and 1377 transitions. Word has length 88 [2023-12-16 17:41:16,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:41:16,246 INFO L495 AbstractCegarLoop]: Abstraction has 1229 states and 1377 transitions. [2023-12-16 17:41:16,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 9.333333333333334) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:41:16,246 INFO L276 IsEmpty]: Start isEmpty. Operand 1229 states and 1377 transitions. [2023-12-16 17:41:16,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-16 17:41:16,247 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:41:16,247 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:41:16,257 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 (17)] Ended with exit code 0 [2023-12-16 17:41:16,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:41:16,450 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:41:16,450 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:41:16,451 INFO L85 PathProgramCache]: Analyzing trace with hash 118148751, now seen corresponding path program 1 times [2023-12-16 17:41:16,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:41:16,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1449589267] [2023-12-16 17:41:16,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:41:16,451 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 17:41:16,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:41:16,465 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:41:16,509 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-16 17:41:16,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:41:16,532 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-16 17:41:16,534 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:41:16,608 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 25 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-16 17:41:16,608 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:41:16,850 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-12-16 17:41:16,850 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:41:16,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1449589267] [2023-12-16 17:41:16,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1449589267] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:41:16,851 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:41:16,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9] total 14 [2023-12-16 17:41:16,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094479976] [2023-12-16 17:41:16,851 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:41:16,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-16 17:41:16,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:41:16,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-16 17:41:16,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2023-12-16 17:41:16,852 INFO L87 Difference]: Start difference. First operand 1229 states and 1377 transitions. Second operand has 14 states, 14 states have (on average 7.357142857142857) internal successors, (103), 13 states have internal predecessors, (103), 9 states have call successors, (22), 8 states have call predecessors, (22), 8 states have return successors, (20), 9 states have call predecessors, (20), 9 states have call successors, (20) [2023-12-16 17:41:17,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:41:17,440 INFO L93 Difference]: Finished difference Result 2700 states and 3115 transitions. [2023-12-16 17:41:17,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 17:41:17,440 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.357142857142857) internal successors, (103), 13 states have internal predecessors, (103), 9 states have call successors, (22), 8 states have call predecessors, (22), 8 states have return successors, (20), 9 states have call predecessors, (20), 9 states have call successors, (20) Word has length 96 [2023-12-16 17:41:17,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:41:17,444 INFO L225 Difference]: With dead ends: 2700 [2023-12-16 17:41:17,444 INFO L226 Difference]: Without dead ends: 1560 [2023-12-16 17:41:17,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2023-12-16 17:41:17,447 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 350 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 1039 mSolverCounterSat, 162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 1201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 1039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 17:41:17,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 594 Invalid, 1201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 1039 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 17:41:17,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1560 states. [2023-12-16 17:41:17,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1560 to 1534. [2023-12-16 17:41:17,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1534 states, 1058 states have (on average 1.1323251417769375) internal successors, (1198), 1124 states have internal predecessors, (1198), 235 states have call successors, (235), 211 states have call predecessors, (235), 240 states have return successors, (265), 238 states have call predecessors, (265), 235 states have call successors, (265) [2023-12-16 17:41:17,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1534 states to 1534 states and 1698 transitions. [2023-12-16 17:41:17,541 INFO L78 Accepts]: Start accepts. Automaton has 1534 states and 1698 transitions. Word has length 96 [2023-12-16 17:41:17,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:41:17,541 INFO L495 AbstractCegarLoop]: Abstraction has 1534 states and 1698 transitions. [2023-12-16 17:41:17,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.357142857142857) internal successors, (103), 13 states have internal predecessors, (103), 9 states have call successors, (22), 8 states have call predecessors, (22), 8 states have return successors, (20), 9 states have call predecessors, (20), 9 states have call successors, (20) [2023-12-16 17:41:17,542 INFO L276 IsEmpty]: Start isEmpty. Operand 1534 states and 1698 transitions. [2023-12-16 17:41:17,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-16 17:41:17,544 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:41:17,544 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:41:17,562 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 (18)] Ended with exit code 0 [2023-12-16 17:41:17,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:41:17,747 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:41:17,747 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:41:17,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1875995955, now seen corresponding path program 1 times [2023-12-16 17:41:17,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:41:17,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [53905303] [2023-12-16 17:41:17,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:41:17,747 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 17:41:17,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:41:17,748 INFO L229 MonitoredProcess]: Starting monitored process 19 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 17:41:17,777 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 (19)] Waiting until timeout for monitored process [2023-12-16 17:41:17,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:41:17,800 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-16 17:41:17,802 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:41:17,884 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 17 proven. 12 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-16 17:41:17,885 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:41:18,041 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-16 17:41:18,041 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:41:18,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [53905303] [2023-12-16 17:41:18,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [53905303] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:41:18,041 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:41:18,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 13 [2023-12-16 17:41:18,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422041816] [2023-12-16 17:41:18,043 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:41:18,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-16 17:41:18,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:41:18,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-16 17:41:18,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2023-12-16 17:41:18,044 INFO L87 Difference]: Start difference. First operand 1534 states and 1698 transitions. Second operand has 13 states, 13 states have (on average 8.153846153846153) internal successors, (106), 12 states have internal predecessors, (106), 7 states have call successors, (22), 7 states have call predecessors, (22), 6 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2023-12-16 17:41:18,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:41:18,726 INFO L93 Difference]: Finished difference Result 3537 states and 3998 transitions. [2023-12-16 17:41:18,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-16 17:41:18,727 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.153846153846153) internal successors, (106), 12 states have internal predecessors, (106), 7 states have call successors, (22), 7 states have call predecessors, (22), 6 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) Word has length 96 [2023-12-16 17:41:18,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:41:18,732 INFO L225 Difference]: With dead ends: 3537 [2023-12-16 17:41:18,732 INFO L226 Difference]: Without dead ends: 2092 [2023-12-16 17:41:18,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=180, Invalid=522, Unknown=0, NotChecked=0, Total=702 [2023-12-16 17:41:18,735 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 618 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 660 mSolverCounterSat, 311 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 629 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 311 IncrementalHoareTripleChecker+Valid, 660 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 17:41:18,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [629 Valid, 399 Invalid, 971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [311 Valid, 660 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 17:41:18,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2092 states. [2023-12-16 17:41:18,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2092 to 1597. [2023-12-16 17:41:18,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1597 states, 1098 states have (on average 1.1247723132969034) internal successors, (1235), 1167 states have internal predecessors, (1235), 245 states have call successors, (245), 222 states have call predecessors, (245), 253 states have return successors, (277), 248 states have call predecessors, (277), 245 states have call successors, (277) [2023-12-16 17:41:18,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1597 states to 1597 states and 1757 transitions. [2023-12-16 17:41:18,854 INFO L78 Accepts]: Start accepts. Automaton has 1597 states and 1757 transitions. Word has length 96 [2023-12-16 17:41:18,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:41:18,854 INFO L495 AbstractCegarLoop]: Abstraction has 1597 states and 1757 transitions. [2023-12-16 17:41:18,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.153846153846153) internal successors, (106), 12 states have internal predecessors, (106), 7 states have call successors, (22), 7 states have call predecessors, (22), 6 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2023-12-16 17:41:18,854 INFO L276 IsEmpty]: Start isEmpty. Operand 1597 states and 1757 transitions. [2023-12-16 17:41:18,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2023-12-16 17:41:18,859 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:41:18,859 INFO L195 NwaCegarLoop]: trace histogram [13, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-16 17:41:18,868 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 (19)] Ended with exit code 0 [2023-12-16 17:41:19,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /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 17:41:19,063 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:41:19,063 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:41:19,063 INFO L85 PathProgramCache]: Analyzing trace with hash -900442404, now seen corresponding path program 1 times [2023-12-16 17:41:19,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:41:19,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [475176619] [2023-12-16 17:41:19,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:41:19,064 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 17:41:19,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:41:19,065 INFO L229 MonitoredProcess]: Starting monitored process 20 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 17:41:19,092 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 (20)] Waiting until timeout for monitored process [2023-12-16 17:41:19,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:41:19,186 INFO L262 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 17:41:19,191 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:41:19,261 INFO L134 CoverageAnalysis]: Checked inductivity of 775 backedges. 157 proven. 0 refuted. 0 times theorem prover too weak. 618 trivial. 0 not checked. [2023-12-16 17:41:19,262 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:41:19,262 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:41:19,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [475176619] [2023-12-16 17:41:19,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [475176619] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:41:19,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:41:19,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 17:41:19,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195584234] [2023-12-16 17:41:19,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:41:19,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 17:41:19,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:41:19,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 17:41:19,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:41:19,264 INFO L87 Difference]: Start difference. First operand 1597 states and 1757 transitions. Second operand has 8 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 3 states have call successors, (22), 3 states have call predecessors, (22), 5 states have return successors, (22), 5 states have call predecessors, (22), 3 states have call successors, (22) [2023-12-16 17:41:19,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:41:19,470 INFO L93 Difference]: Finished difference Result 3042 states and 3360 transitions. [2023-12-16 17:41:19,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 17:41:19,470 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 3 states have call successors, (22), 3 states have call predecessors, (22), 5 states have return successors, (22), 5 states have call predecessors, (22), 3 states have call successors, (22) Word has length 321 [2023-12-16 17:41:19,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:41:19,475 INFO L225 Difference]: With dead ends: 3042 [2023-12-16 17:41:19,475 INFO L226 Difference]: Without dead ends: 1534 [2023-12-16 17:41:19,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 314 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:41:19,478 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 63 mSDsluCounter, 495 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:41:19,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 658 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:41:19,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1534 states. [2023-12-16 17:41:19,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1534 to 1534. [2023-12-16 17:41:19,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1534 states, 1056 states have (on average 1.1240530303030303) internal successors, (1187), 1119 states have internal predecessors, (1187), 239 states have call successors, (239), 216 states have call predecessors, (239), 238 states have return successors, (262), 236 states have call predecessors, (262), 239 states have call successors, (262) [2023-12-16 17:41:19,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1534 states to 1534 states and 1688 transitions. [2023-12-16 17:41:19,580 INFO L78 Accepts]: Start accepts. Automaton has 1534 states and 1688 transitions. Word has length 321 [2023-12-16 17:41:19,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:41:19,581 INFO L495 AbstractCegarLoop]: Abstraction has 1534 states and 1688 transitions. [2023-12-16 17:41:19,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 3 states have call successors, (22), 3 states have call predecessors, (22), 5 states have return successors, (22), 5 states have call predecessors, (22), 3 states have call successors, (22) [2023-12-16 17:41:19,581 INFO L276 IsEmpty]: Start isEmpty. Operand 1534 states and 1688 transitions. [2023-12-16 17:41:19,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2023-12-16 17:41:19,585 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:41:19,585 INFO L195 NwaCegarLoop]: trace histogram [13, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-16 17:41:19,609 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 (20)] Ended with exit code 0 [2023-12-16 17:41:19,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /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 17:41:19,789 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:41:19,790 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:41:19,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1670048756, now seen corresponding path program 1 times [2023-12-16 17:41:19,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:41:19,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [117088263] [2023-12-16 17:41:19,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:41:19,790 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 17:41:19,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:41:19,791 INFO L229 MonitoredProcess]: Starting monitored process 21 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 17:41:19,820 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 (21)] Waiting until timeout for monitored process [2023-12-16 17:41:19,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:41:19,962 INFO L262 TraceCheckSpWp]: Trace formula consists of 544 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 17:41:19,966 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:41:20,024 INFO L134 CoverageAnalysis]: Checked inductivity of 782 backedges. 341 proven. 0 refuted. 0 times theorem prover too weak. 441 trivial. 0 not checked. [2023-12-16 17:41:20,025 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:41:20,025 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:41:20,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [117088263] [2023-12-16 17:41:20,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [117088263] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:41:20,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:41:20,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 17:41:20,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208805304] [2023-12-16 17:41:20,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:41:20,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 17:41:20,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:41:20,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 17:41:20,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:41:20,026 INFO L87 Difference]: Start difference. First operand 1534 states and 1688 transitions. Second operand has 8 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 3 states have call successors, (26), 3 states have call predecessors, (26), 5 states have return successors, (26), 5 states have call predecessors, (26), 3 states have call successors, (26) [2023-12-16 17:41:20,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:41:20,188 INFO L93 Difference]: Finished difference Result 2785 states and 3068 transitions. [2023-12-16 17:41:20,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 17:41:20,189 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 3 states have call successors, (26), 3 states have call predecessors, (26), 5 states have return successors, (26), 5 states have call predecessors, (26), 3 states have call successors, (26) Word has length 325 [2023-12-16 17:41:20,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:41:20,192 INFO L225 Difference]: With dead ends: 2785 [2023-12-16 17:41:20,192 INFO L226 Difference]: Without dead ends: 1340 [2023-12-16 17:41:20,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 318 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:41:20,195 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 53 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:41:20,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 613 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:41:20,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1340 states. [2023-12-16 17:41:20,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1340 to 1340. [2023-12-16 17:41:20,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1340 states, 932 states have (on average 1.1169527896995708) internal successors, (1041), 977 states have internal predecessors, (1041), 204 states have call successors, (204), 191 states have call predecessors, (204), 203 states have return successors, (217), 197 states have call predecessors, (217), 204 states have call successors, (217) [2023-12-16 17:41:20,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1340 states to 1340 states and 1462 transitions. [2023-12-16 17:41:20,284 INFO L78 Accepts]: Start accepts. Automaton has 1340 states and 1462 transitions. Word has length 325 [2023-12-16 17:41:20,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:41:20,284 INFO L495 AbstractCegarLoop]: Abstraction has 1340 states and 1462 transitions. [2023-12-16 17:41:20,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 3 states have call successors, (26), 3 states have call predecessors, (26), 5 states have return successors, (26), 5 states have call predecessors, (26), 3 states have call successors, (26) [2023-12-16 17:41:20,285 INFO L276 IsEmpty]: Start isEmpty. Operand 1340 states and 1462 transitions. [2023-12-16 17:41:20,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2023-12-16 17:41:20,288 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:41:20,289 INFO L195 NwaCegarLoop]: trace histogram [13, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-16 17:41:20,304 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 (21)] Ended with exit code 0 [2023-12-16 17:41:20,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /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 17:41:20,493 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:41:20,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:41:20,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1150806020, now seen corresponding path program 2 times [2023-12-16 17:41:20,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:41:20,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1565301723] [2023-12-16 17:41:20,494 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-16 17:41:20,494 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 17:41:20,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:41:20,496 INFO L229 MonitoredProcess]: Starting monitored process 22 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 17:41:20,520 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 (22)] Waiting until timeout for monitored process [2023-12-16 17:41:20,607 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-16 17:41:20,607 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 17:41:20,612 INFO L262 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:41:20,616 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:41:20,637 INFO L134 CoverageAnalysis]: Checked inductivity of 786 backedges. 338 proven. 0 refuted. 0 times theorem prover too weak. 448 trivial. 0 not checked. [2023-12-16 17:41:20,637 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:41:20,637 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:41:20,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1565301723] [2023-12-16 17:41:20,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1565301723] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:41:20,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:41:20,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:41:20,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138097586] [2023-12-16 17:41:20,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:41:20,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:41:20,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:41:20,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:41:20,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:41:20,639 INFO L87 Difference]: Start difference. First operand 1340 states and 1462 transitions. Second operand has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-12-16 17:41:20,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:41:20,675 INFO L93 Difference]: Finished difference Result 1614 states and 1763 transitions. [2023-12-16 17:41:20,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:41:20,675 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 326 [2023-12-16 17:41:20,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:41:20,676 INFO L225 Difference]: With dead ends: 1614 [2023-12-16 17:41:20,676 INFO L226 Difference]: Without dead ends: 0 [2023-12-16 17:41:20,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 323 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 17:41:20,678 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 2 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:41:20,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 233 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:41:20,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-16 17:41:20,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-16 17:41:20,679 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 17:41:20,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-16 17:41:20,679 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 326 [2023-12-16 17:41:20,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:41:20,679 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-16 17:41:20,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-12-16 17:41:20,679 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-16 17:41:20,679 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-16 17:41:20,681 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 17:41:20,687 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 (22)] Forceful destruction successful, exit code 0 [2023-12-16 17:41:20,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /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 17:41:20,887 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-16 17:41:22,760 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 266 273) no Hoare annotation was computed. [2023-12-16 17:41:22,761 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 266 273) the Hoare annotation is: (let ((.cse0 (= (_ bv1 32) ~pumpRunning~0)) (.cse1 (not (= ~systemActive~0 (_ bv1 32)))) (.cse2 (not (= |old(~pumpRunning~0)| (_ bv1 32)))) (.cse3 (not (= ~waterLevel~0 (_ bv1 32))))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 (_ bv1 32))) .cse2 .cse3) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 (_ bv0 32))) .cse2 .cse3))) [2023-12-16 17:41:22,761 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 156 162) no Hoare annotation was computed. [2023-12-16 17:41:22,761 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 156 162) the Hoare annotation is: true [2023-12-16 17:41:22,761 INFO L895 garLoopResultBuilder]: At program point L209(line 209) 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 .cse6 (not (= |old(~pumpRunning~0)| (_ bv1 32))) .cse3) (or .cse0 .cse5 .cse1 .cse6 .cse4) (or .cse0 .cse1 .cse6 .cse3 .cse4))) [2023-12-16 17:41:22,761 INFO L899 garLoopResultBuilder]: For program point L209-1(lines 190 214) no Hoare annotation was computed. [2023-12-16 17:41:22,761 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 190 214) 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 (= (_ bv1 32) ~pumpRunning~0) .cse0 .cse6 (not (= |old(~pumpRunning~0)| (_ bv1 32))) .cse3) (or .cse0 .cse5 .cse1 .cse6 .cse4) (or .cse0 .cse1 .cse6 .cse3 .cse4))) [2023-12-16 17:41:22,762 INFO L899 garLoopResultBuilder]: For program point L358(lines 358 362) no Hoare annotation was computed. [2023-12-16 17:41:22,762 INFO L899 garLoopResultBuilder]: For program point L358-2(lines 358 362) no Hoare annotation was computed. [2023-12-16 17:41:22,762 INFO L895 garLoopResultBuilder]: At program point L204(line 204) 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 .cse4 (not (= |old(~pumpRunning~0)| (_ bv1 32))) .cse5) (or .cse0 .cse2 .cse4 .cse5) (or .cse0 .cse2 .cse3 .cse5))) [2023-12-16 17:41:22,762 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 190 214) no Hoare annotation was computed. [2023-12-16 17:41:22,762 INFO L895 garLoopResultBuilder]: At program point L200(line 200) 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 .cse4 (not (= |old(~pumpRunning~0)| (_ bv1 32))) .cse5 (and (= (_ bv1 32) ~pumpRunning~0) (= |processEnvironment__wrappee__methaneQuery_~tmp~2#1| (_ bv1 32)))) (or .cse0 .cse1 .cse2 .cse4) (or .cse0 .cse2 .cse4 .cse5) (or .cse0 .cse2 .cse3 .cse5))) [2023-12-16 17:41:22,762 INFO L899 garLoopResultBuilder]: For program point L198(lines 198 206) no Hoare annotation was computed. [2023-12-16 17:41:22,762 INFO L899 garLoopResultBuilder]: For program point L194(lines 194 211) no Hoare annotation was computed. [2023-12-16 17:41:22,762 INFO L899 garLoopResultBuilder]: For program point L400-1(lines 396 407) no Hoare annotation was computed. [2023-12-16 17:41:22,762 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 396 407) the Hoare annotation is: (let ((.cse5 (not (= ~waterLevel~0 (_ bv1 32)))) (.cse0 (not (= (_ bv0 32) ~pumpRunning~0))) (.cse6 (not (= |old(~methaneLevelCritical~0)| (_ bv1 32)))) (.cse7 (= ~methaneLevelCritical~0 (_ bv1 32))) (.cse1 (not (= ~systemActive~0 (_ bv1 32)))) (.cse2 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse3 (not (= ~waterLevel~0 (_ bv2 32)))) (.cse4 (not (= |old(~methaneLevelCritical~0)| (_ bv0 32))))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse1 .cse5 .cse6 .cse7) (or .cse0 .cse1 .cse2 .cse4 .cse5) (or .cse0 .cse1 .cse3 .cse6 .cse7) (or .cse1 .cse2 .cse3 .cse4 (not (= (_ bv1 32) ~pumpRunning~0))))) [2023-12-16 17:41:22,762 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 396 407) no Hoare annotation was computed. [2023-12-16 17:41:22,762 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 408 416) the Hoare annotation is: true [2023-12-16 17:41:22,762 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 408 416) no Hoare annotation was computed. [2023-12-16 17:41:22,763 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 483 512) no Hoare annotation was computed. [2023-12-16 17:41:22,763 INFO L899 garLoopResultBuilder]: For program point L508(lines 483 512) no Hoare annotation was computed. [2023-12-16 17:41:22,763 INFO L899 garLoopResultBuilder]: For program point L504(line 504) no Hoare annotation was computed. [2023-12-16 17:41:22,763 INFO L899 garLoopResultBuilder]: For program point L497(lines 497 501) no Hoare annotation was computed. [2023-12-16 17:41:22,763 INFO L902 garLoopResultBuilder]: At program point L497-1(lines 497 501) the Hoare annotation is: true [2023-12-16 17:41:22,763 INFO L902 garLoopResultBuilder]: At program point L493-2(lines 493 507) the Hoare annotation is: true [2023-12-16 17:41:22,763 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 483 512) the Hoare annotation is: true [2023-12-16 17:41:22,763 INFO L902 garLoopResultBuilder]: At program point L489(line 489) the Hoare annotation is: true [2023-12-16 17:41:22,763 INFO L899 garLoopResultBuilder]: For program point L489-1(line 489) no Hoare annotation was computed. [2023-12-16 17:41:22,763 INFO L899 garLoopResultBuilder]: For program point L477(line 477) no Hoare annotation was computed. [2023-12-16 17:41:22,763 INFO L899 garLoopResultBuilder]: For program point L143-1(lines 143 149) no Hoare annotation was computed. [2023-12-16 17:41:22,763 INFO L895 garLoopResultBuilder]: At program point L230(line 230) the Hoare annotation is: (let ((.cse4 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse3 (not (= ~methaneLevelCritical~0 (_ bv1 32)))) (.cse6 (not (= |old(~pumpRunning~0)| (_ bv1 32)))) (.cse0 (not (= ~systemActive~0 (_ bv1 32)))) (.cse1 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse2 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (.cse5 (not (= ~methaneLevelCritical~0 (_ bv0 32))))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse0 .cse1 .cse5) (or .cse4 .cse0 .cse1 .cse3) (or .cse4 .cse0 (and (= (_ bv1 32) ~pumpRunning~0) (= |timeShift_processEnvironment_~tmp~3#1| (_ bv0 32)) (= ~waterLevel~0 (_ bv1 32))) .cse5 .cse6) (or .cse4 .cse0 .cse3 .cse6) (or .cse0 .cse1 .cse2 .cse5))) [2023-12-16 17:41:22,763 INFO L895 garLoopResultBuilder]: At program point L226(line 226) the Hoare annotation is: (let ((.cse3 (not (= |old(~pumpRunning~0)| (_ bv1 32)))) (.cse0 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse6 (not (= ~methaneLevelCritical~0 (_ bv1 32)))) (.cse1 (not (= ~systemActive~0 (_ bv1 32)))) (.cse4 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse5 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (.cse2 (not (= ~methaneLevelCritical~0 (_ bv0 32))))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse4 .cse5 .cse6) (or .cse0 .cse1 (and (= (_ bv1 32) ~pumpRunning~0) (= ~waterLevel~0 (_ bv1 32)) (= |timeShift_processEnvironment_~tmp~3#1| (_ bv1 32))) .cse6 .cse3) (or .cse0 .cse1 .cse4 .cse2) (or .cse0 .cse1 .cse4 .cse6) (or .cse1 .cse4 .cse5 .cse2))) [2023-12-16 17:41:22,764 INFO L895 garLoopResultBuilder]: At program point L222(line 222) the Hoare annotation is: (let ((.cse3 (not (= ~methaneLevelCritical~0 (_ bv1 32)))) (.cse0 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse2 (and (= (_ bv1 32) ~pumpRunning~0) (= ~waterLevel~0 (_ bv1 32)))) (.cse4 (not (= |old(~pumpRunning~0)| (_ bv1 32)))) (.cse1 (not (= ~systemActive~0 (_ bv1 32)))) (.cse5 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse6 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (.cse7 (not (= ~methaneLevelCritical~0 (_ bv0 32))))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse1 .cse5 .cse6 .cse3) (or .cse0 .cse1 .cse5 .cse7) (or .cse0 .cse1 .cse5 .cse3) (or .cse0 .cse1 .cse2 .cse7 .cse4) (or .cse1 .cse5 .cse6 .cse7))) [2023-12-16 17:41:22,764 INFO L899 garLoopResultBuilder]: For program point L222-1(line 222) no Hoare annotation was computed. [2023-12-16 17:41:22,764 INFO L899 garLoopResultBuilder]: For program point L590(lines 590 610) no Hoare annotation was computed. [2023-12-16 17:41:22,764 INFO L895 garLoopResultBuilder]: At program point L235(line 235) the Hoare annotation is: (let ((.cse9 (= (_ bv0 32) ~pumpRunning~0))) (let ((.cse4 (not (= ~methaneLevelCritical~0 (_ bv0 32)))) (.cse0 (and (= ~waterLevel~0 (_ bv1 32)) .cse9)) (.cse3 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (.cse7 (not (= |old(~pumpRunning~0)| (_ bv1 32)))) (.cse5 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse1 (not (= ~systemActive~0 (_ bv1 32)))) (.cse2 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse8 (not (= ~methaneLevelCritical~0 (_ bv1 32)))) (.cse6 (and (= ~waterLevel~0 (_ bv2 32)) .cse9))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse1 .cse2 .cse4 .cse6) (or .cse5 .cse1 .cse4 .cse7) (or .cse0 .cse1 .cse2 .cse3 .cse8) (or .cse5 .cse1 .cse8 .cse7) (or .cse5 .cse1 .cse2 .cse8 .cse6)))) [2023-12-16 17:41:22,764 INFO L899 garLoopResultBuilder]: For program point L235-1(lines 216 240) no Hoare annotation was computed. [2023-12-16 17:41:22,764 INFO L899 garLoopResultBuilder]: For program point L136-1(lines 135 154) no Hoare annotation was computed. [2023-12-16 17:41:22,764 INFO L899 garLoopResultBuilder]: For program point L376(lines 376 380) no Hoare annotation was computed. [2023-12-16 17:41:22,764 INFO L899 garLoopResultBuilder]: For program point L376-2(lines 372 383) no Hoare annotation was computed. [2023-12-16 17:41:22,764 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 132 155) the Hoare annotation is: (let ((.cse10 (= ~waterLevel~0 (_ bv2 32))) (.cse11 (= (_ bv0 32) ~pumpRunning~0))) (let ((.cse0 (and (= ~waterLevel~0 (_ bv1 32)) .cse11)) (.cse3 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (.cse4 (not (= ~methaneLevelCritical~0 (_ bv0 32)))) (.cse2 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse6 (and .cse10 .cse11)) (.cse5 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse1 (not (= ~systemActive~0 (_ bv1 32)))) (.cse7 (not (= ~methaneLevelCritical~0 (_ bv1 32)))) (.cse8 (not (= |old(~pumpRunning~0)| (_ bv1 32)))) (.cse9 (and (= (_ bv1 32) ~pumpRunning~0) .cse10))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse1 .cse2 .cse4 .cse6) (or .cse0 .cse1 .cse2 .cse3 .cse7) (or .cse5 .cse1 .cse4 .cse8 .cse9) (or .cse5 .cse1 .cse2 .cse7 .cse6) (or .cse5 .cse1 .cse7 .cse8 .cse9)))) [2023-12-16 17:41:22,764 INFO L899 garLoopResultBuilder]: For program point L224(lines 224 232) no Hoare annotation was computed. [2023-12-16 17:41:22,764 INFO L899 garLoopResultBuilder]: For program point L220(lines 220 237) no Hoare annotation was computed. [2023-12-16 17:41:22,764 INFO L899 garLoopResultBuilder]: For program point L600(lines 600 606) no Hoare annotation was computed. [2023-12-16 17:41:22,765 INFO L899 garLoopResultBuilder]: For program point L596(lines 596 609) no Hoare annotation was computed. [2023-12-16 17:41:22,765 INFO L899 garLoopResultBuilder]: For program point L596-1(lines 581 613) no Hoare annotation was computed. [2023-12-16 17:41:22,765 INFO L895 garLoopResultBuilder]: At program point L588(line 588) the Hoare annotation is: (let ((.cse9 (= (_ bv0 32) ~pumpRunning~0))) (let ((.cse4 (not (= ~methaneLevelCritical~0 (_ bv0 32)))) (.cse7 (not (= |old(~pumpRunning~0)| (_ bv1 32)))) (.cse0 (and (= ~waterLevel~0 (_ bv1 32)) .cse9)) (.cse3 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (.cse5 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse1 (not (= ~systemActive~0 (_ bv1 32)))) (.cse2 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse6 (not (= ~methaneLevelCritical~0 (_ bv1 32)))) (.cse8 (= ~waterLevel~0 (_ bv2 32)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse0 .cse1 .cse6 .cse7) (or .cse5 .cse1 .cse2 .cse4 (and (= (_ bv1 32) ~pumpRunning~0) .cse8)) (or .cse5 .cse0 .cse1 .cse4 .cse7) (or .cse0 .cse1 .cse2 .cse3 .cse6) (or .cse5 .cse1 .cse2 .cse6 (and .cse8 .cse9))))) [2023-12-16 17:41:22,765 INFO L899 garLoopResultBuilder]: For program point L588-1(line 588) no Hoare annotation was computed. [2023-12-16 17:41:22,765 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 132 155) no Hoare annotation was computed. [2023-12-16 17:41:22,765 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 477) no Hoare annotation was computed. [2023-12-16 17:41:22,765 INFO L895 garLoopResultBuilder]: At program point L110(lines 63 111) the Hoare annotation is: false [2023-12-16 17:41:22,765 INFO L899 garLoopResultBuilder]: For program point L65(lines 64 109) no Hoare annotation was computed. [2023-12-16 17:41:22,765 INFO L899 garLoopResultBuilder]: For program point L94(lines 94 105) no Hoare annotation was computed. [2023-12-16 17:41:22,765 INFO L895 garLoopResultBuilder]: At program point L86(line 86) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 (_ bv2 32))) (.cse1 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse2 (= ~systemActive~0 (_ bv1 32))) (.cse6 (= ~waterLevel~0 (_ bv1 32))) (.cse5 (= ~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 .cse2 .cse5 .cse3 .cse4) (and (= (_ bv1 32) ~pumpRunning~0) .cse0 .cse1 .cse2 .cse3) (and .cse1 .cse2 .cse6 .cse3 .cse4) (and .cse2 .cse6 .cse5 .cse3 .cse4))) [2023-12-16 17:41:22,765 INFO L895 garLoopResultBuilder]: At program point L107(lines 64 109) 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 (= (_ bv1 32) ~pumpRunning~0) .cse0 .cse5 .cse1 .cse3) (and .cse5 .cse1 .cse6 .cse3 .cse4) (and .cse1 .cse6 .cse2 .cse3 .cse4))) [2023-12-16 17:41:22,765 INFO L899 garLoopResultBuilder]: For program point L74(lines 74 80) no Hoare annotation was computed. [2023-12-16 17:41:22,766 INFO L899 garLoopResultBuilder]: For program point L74-1(lines 74 80) no Hoare annotation was computed. [2023-12-16 17:41:22,766 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-16 17:41:22,766 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-16 17:41:22,766 INFO L899 garLoopResultBuilder]: For program point L100(lines 100 104) no Hoare annotation was computed. [2023-12-16 17:41:22,766 INFO L895 garLoopResultBuilder]: At program point L100-2(lines 94 105) the Hoare annotation is: (let ((.cse1 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse6 (= (_ bv1 32) ~pumpRunning~0)) (.cse0 (= ~waterLevel~0 (_ bv2 32))) (.cse2 (= ~systemActive~0 (_ bv1 32))) (.cse7 (= ~waterLevel~0 (_ bv1 32))) (.cse5 (= ~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 .cse2 .cse5 .cse3 .cse4) (and .cse6 .cse0 .cse1 .cse2 .cse3) (and .cse1 .cse2 .cse7 .cse3 .cse4) (and .cse6 .cse0 .cse2 .cse5 .cse3) (and .cse2 .cse7 .cse5 .cse3 .cse4))) [2023-12-16 17:41:22,766 INFO L899 garLoopResultBuilder]: For program point L567(lines 567 574) no Hoare annotation was computed. [2023-12-16 17:41:22,766 INFO L899 garLoopResultBuilder]: For program point L567-2(lines 567 574) no Hoare annotation was computed. [2023-12-16 17:41:22,766 INFO L899 garLoopResultBuilder]: For program point L84(lines 84 90) no Hoare annotation was computed. [2023-12-16 17:41:22,766 INFO L899 garLoopResultBuilder]: For program point L84-1(lines 84 90) no Hoare annotation was computed. [2023-12-16 17:41:22,766 INFO L899 garLoopResultBuilder]: For program point L113(lines 54 117) no Hoare annotation was computed. [2023-12-16 17:41:22,766 INFO L895 garLoopResultBuilder]: At program point L76(line 76) 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 (= (_ bv1 32) ~pumpRunning~0) .cse0 .cse5 .cse1 .cse3) (and .cse5 .cse1 .cse6 .cse3 .cse4) (and .cse1 .cse6 .cse2 .cse3 .cse4))) [2023-12-16 17:41:22,766 INFO L899 garLoopResultBuilder]: For program point L256(lines 256 262) no Hoare annotation was computed. [2023-12-16 17:41:22,766 INFO L895 garLoopResultBuilder]: At program point L254(line 254) the Hoare annotation is: (let ((.cse1 (not (= ~waterLevel~0 (_ bv2 32)))) (.cse4 (and (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| (_ bv0 32)) (= |processEnvironment__wrappee__highWaterSensor_~tmp~1#1| (_ bv1 32)) (= (_ 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 17:41:22,766 INFO L899 garLoopResultBuilder]: For program point L256-2(lines 249 265) no Hoare annotation was computed. [2023-12-16 17:41:22,766 INFO L899 garLoopResultBuilder]: For program point L254-1(line 254) no Hoare annotation was computed. [2023-12-16 17:41:22,767 INFO L899 garLoopResultBuilder]: For program point L339(lines 339 343) no Hoare annotation was computed. [2023-12-16 17:41:22,767 INFO L895 garLoopResultBuilder]: At program point L178(line 178) the Hoare annotation is: (let ((.cse5 (not (= ~waterLevel~0 (_ bv2 32)))) (.cse3 (not (= ~methaneLevelCritical~0 (_ bv0 32)))) (.cse0 (not (= ~systemActive~0 (_ bv1 32)))) (.cse1 (and (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| (_ bv1 32)) (= |processEnvironment__wrappee__highWaterSensor_~tmp~1#1| (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0))) (.cse2 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse6 (not (= ~methaneLevelCritical~0 (_ bv1 32)))) (.cse4 (not (= ~waterLevel~0 (_ bv1 32))))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse5 .cse2 .cse6) (or .cse0 .cse5 .cse2 .cse3) (or .cse0 .cse1 .cse2 .cse6 .cse4))) [2023-12-16 17:41:22,767 INFO L899 garLoopResultBuilder]: For program point L339-2(lines 339 343) no Hoare annotation was computed. [2023-12-16 17:41:22,767 INFO L899 garLoopResultBuilder]: For program point L172(lines 172 180) no Hoare annotation was computed. [2023-12-16 17:41:22,767 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 164 188) 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 17:41:22,767 INFO L899 garLoopResultBuilder]: For program point L168(lines 168 185) no Hoare annotation was computed. [2023-12-16 17:41:22,767 INFO L899 garLoopResultBuilder]: For program point L453(lines 453 459) no Hoare annotation was computed. [2023-12-16 17:41:22,767 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDry_returnLabel#1(lines 449 462) no Hoare annotation was computed. [2023-12-16 17:41:22,767 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 164 188) no Hoare annotation was computed. [2023-12-16 17:41:22,767 INFO L895 garLoopResultBuilder]: At program point L183(line 183) 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 17:41:22,767 INFO L899 garLoopResultBuilder]: For program point L183-1(lines 164 188) no Hoare annotation was computed. [2023-12-16 17:41:22,767 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 384 395) no Hoare annotation was computed. [2023-12-16 17:41:22,768 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 384 395) 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 (not (= (_ bv1 32) ~pumpRunning~0))) (or .cse2 .cse3 .cse6 .cse7 .cse5) (or .cse2 .cse3 .cse6 .cse4 .cse7))) [2023-12-16 17:41:22,768 INFO L899 garLoopResultBuilder]: For program point L388-1(lines 384 395) no Hoare annotation was computed. [2023-12-16 17:41:22,768 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 274 284) no Hoare annotation was computed. [2023-12-16 17:41:22,768 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 274 284) the Hoare annotation is: true [2023-12-16 17:41:22,788 INFO L902 garLoopResultBuilder]: At program point L279(line 279) the Hoare annotation is: true [2023-12-16 17:41:22,788 INFO L899 garLoopResultBuilder]: For program point L279-1(line 279) no Hoare annotation was computed. [2023-12-16 17:41:22,790 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:41:22,791 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 17:41:22,801 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 05:41:22 BoogieIcfgContainer [2023-12-16 17:41:22,801 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 17:41:22,801 INFO L158 Benchmark]: Toolchain (without parser) took 15908.78ms. Allocated memory was 196.1MB in the beginning and 465.6MB in the end (delta: 269.5MB). Free memory was 133.2MB in the beginning and 353.0MB in the end (delta: -219.8MB). Peak memory consumption was 247.7MB. Max. memory is 8.0GB. [2023-12-16 17:41:22,802 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 196.1MB. Free memory was 147.1MB in the beginning and 147.0MB in the end (delta: 163.6kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 17:41:22,802 INFO L158 Benchmark]: CACSL2BoogieTranslator took 455.56ms. Allocated memory was 196.1MB in the beginning and 268.4MB in the end (delta: 72.4MB). Free memory was 133.2MB in the beginning and 234.0MB in the end (delta: -100.9MB). Peak memory consumption was 32.1MB. Max. memory is 8.0GB. [2023-12-16 17:41:22,802 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.88ms. Allocated memory is still 268.4MB. Free memory was 234.0MB in the beginning and 231.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-16 17:41:22,803 INFO L158 Benchmark]: Boogie Preprocessor took 69.44ms. Allocated memory is still 268.4MB. Free memory was 231.9MB in the beginning and 229.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-16 17:41:22,803 INFO L158 Benchmark]: RCFGBuilder took 418.88ms. Allocated memory is still 268.4MB. Free memory was 229.3MB in the beginning and 198.4MB in the end (delta: 30.9MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. [2023-12-16 17:41:22,803 INFO L158 Benchmark]: TraceAbstraction took 14925.64ms. Allocated memory was 268.4MB in the beginning and 465.6MB in the end (delta: 197.1MB). Free memory was 197.7MB in the beginning and 353.0MB in the end (delta: -155.2MB). Peak memory consumption was 238.6MB. Max. memory is 8.0GB. [2023-12-16 17:41:22,807 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 196.1MB. Free memory was 147.1MB in the beginning and 147.0MB in the end (delta: 163.6kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 455.56ms. Allocated memory was 196.1MB in the beginning and 268.4MB in the end (delta: 72.4MB). Free memory was 133.2MB in the beginning and 234.0MB in the end (delta: -100.9MB). Peak memory consumption was 32.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 32.88ms. Allocated memory is still 268.4MB. Free memory was 234.0MB in the beginning and 231.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 69.44ms. Allocated memory is still 268.4MB. Free memory was 231.9MB in the beginning and 229.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 418.88ms. Allocated memory is still 268.4MB. Free memory was 229.3MB in the beginning and 198.4MB in the end (delta: 30.9MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. * TraceAbstraction took 14925.64ms. Allocated memory was 268.4MB in the beginning and 465.6MB in the end (delta: 197.1MB). Free memory was 197.7MB in the beginning and 353.0MB in the end (delta: -155.2MB). Peak memory consumption was 238.6MB. 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,"scenario.i","") [49] - GenericResultAtLocation [Line: 118]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [118] - GenericResultAtLocation [Line: 368]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [368] - GenericResultAtLocation [Line: 472]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [472] - GenericResultAtLocation [Line: 481]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [481] - GenericResultAtLocation [Line: 580]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [580] - GenericResultAtLocation [Line: 614]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [614] - GenericResultAtLocation [Line: 649]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [649] * 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: 477]: 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 11 procedures, 89 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 14.9s, OverallIterations: 21, TraceHistogramMax: 13, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 4.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2346 SdHoareTripleChecker+Valid, 2.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2264 mSDsluCounter, 7198 SdHoareTripleChecker+Invalid, 2.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5073 mSDsCounter, 755 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4557 IncrementalHoareTripleChecker+Invalid, 5312 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 755 mSolverCounterUnsat, 2125 mSDtfsCounter, 4557 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2236 GetRequests, 2112 SyntacticMatches, 0 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1597occurred in iteration=18, InterpolantAutomatonStates: 145, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 21 MinimizatonAttempts, 660 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 30 LocationsWithAnnotation, 5206 PreInvPairs, 5250 NumberOfFragments, 2010 HoareAnnotationTreeSize, 5206 FormulaSimplifications, 56 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 30 FormulaSimplificationsInter, 1124 FormulaSimplificationTreeSizeReductionInter, 1.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 2015 NumberOfCodeBlocks, 2015 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 2184 ConstructedInterpolants, 0 QuantifiedInterpolants, 3748 SizeOfPredicates, 34 NumberOfNonLiveVariables, 4052 ConjunctsInSsa, 129 ConjunctsInUnsatCore, 23 InterpolantComputations, 19 PerfectInterpolantSequences, 2630/2664 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: 63]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 493]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: ((((((((waterLevel == 2) && (systemActive == 1)) && (methaneLevelCritical == 1)) && (splverifierCounter == 0)) && (0 == pumpRunning)) || (((((1 == 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 17:41:22,825 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...