./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product64.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec4_product64.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0f3f23173af8ffbfd6ca2d826b937f078be2c112e64596739bc9740bb061a5d2 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 23:18:17,759 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 23:18:17,818 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 23:18:17,823 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 23:18:17,825 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 23:18:17,853 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 23:18:17,854 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 23:18:17,855 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 23:18:17,855 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 23:18:17,856 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 23:18:17,857 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 23:18:17,857 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 23:18:17,858 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 23:18:17,858 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 23:18:17,859 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 23:18:17,859 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 23:18:17,860 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 23:18:17,860 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 23:18:17,860 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 23:18:17,860 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 23:18:17,860 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 23:18:17,863 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 23:18:17,864 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 23:18:17,864 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 23:18:17,864 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 23:18:17,864 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 23:18:17,864 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 23:18:17,865 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 23:18:17,865 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 23:18:17,865 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 23:18:17,865 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 23:18:17,865 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 23:18:17,865 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 23:18:17,866 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 23:18:17,866 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 23:18:17,866 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 23:18:17,866 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 23:18:17,866 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 23:18:17,866 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 23:18:17,866 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 23:18:17,867 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 23:18:17,867 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 23:18:17,867 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f3f23173af8ffbfd6ca2d826b937f078be2c112e64596739bc9740bb061a5d2 [2024-11-09 23:18:18,127 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 23:18:18,146 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 23:18:18,148 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 23:18:18,149 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 23:18:18,149 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 23:18:18,150 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product64.cil.c [2024-11-09 23:18:19,438 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 23:18:19,645 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 23:18:19,645 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product64.cil.c [2024-11-09 23:18:19,656 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09dd82833/8428a4366ae64a3bb648971647a2f340/FLAG3bd930e1f [2024-11-09 23:18:20,013 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09dd82833/8428a4366ae64a3bb648971647a2f340 [2024-11-09 23:18:20,015 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 23:18:20,016 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 23:18:20,017 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 23:18:20,018 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 23:18:20,022 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 23:18:20,023 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:18:20" (1/1) ... [2024-11-09 23:18:20,023 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27236e59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:18:20, skipping insertion in model container [2024-11-09 23:18:20,023 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:18:20" (1/1) ... [2024-11-09 23:18:20,056 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 23:18:20,223 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product64.cil.c[2897,2910] [2024-11-09 23:18:20,335 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 23:18:20,353 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 23:18:20,360 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [49] [2024-11-09 23:18:20,361 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [153] [2024-11-09 23:18:20,362 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [162] [2024-11-09 23:18:20,362 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [190] [2024-11-09 23:18:20,363 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [261] [2024-11-09 23:18:20,365 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [531] [2024-11-09 23:18:20,365 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [897] [2024-11-09 23:18:20,366 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1000] [2024-11-09 23:18:20,373 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product64.cil.c[2897,2910] [2024-11-09 23:18:20,425 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 23:18:20,443 INFO L204 MainTranslator]: Completed translation [2024-11-09 23:18:20,444 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:18:20 WrapperNode [2024-11-09 23:18:20,444 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 23:18:20,445 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 23:18:20,445 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 23:18:20,445 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 23:18:20,451 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:18:20" (1/1) ... [2024-11-09 23:18:20,461 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:18:20" (1/1) ... [2024-11-09 23:18:20,479 INFO L138 Inliner]: procedures = 59, calls = 107, calls flagged for inlining = 26, calls inlined = 23, statements flattened = 243 [2024-11-09 23:18:20,480 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 23:18:20,480 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 23:18:20,481 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 23:18:20,481 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 23:18:20,489 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:18:20" (1/1) ... [2024-11-09 23:18:20,489 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:18:20" (1/1) ... [2024-11-09 23:18:20,491 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:18:20" (1/1) ... [2024-11-09 23:18:20,516 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]. [2024-11-09 23:18:20,516 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:18:20" (1/1) ... [2024-11-09 23:18:20,517 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:18:20" (1/1) ... [2024-11-09 23:18:20,526 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:18:20" (1/1) ... [2024-11-09 23:18:20,526 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:18:20" (1/1) ... [2024-11-09 23:18:20,527 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:18:20" (1/1) ... [2024-11-09 23:18:20,528 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:18:20" (1/1) ... [2024-11-09 23:18:20,534 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 23:18:20,534 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 23:18:20,534 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 23:18:20,534 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 23:18:20,535 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:18:20" (1/1) ... [2024-11-09 23:18:20,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 23:18:20,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:18:20,566 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) [2024-11-09 23:18:20,575 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 [2024-11-09 23:18:20,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 23:18:20,618 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-09 23:18:20,618 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-09 23:18:20,618 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-09 23:18:20,618 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-09 23:18:20,619 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-09 23:18:20,619 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-09 23:18:20,619 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-11-09 23:18:20,619 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-11-09 23:18:20,619 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-09 23:18:20,619 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-09 23:18:20,619 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2024-11-09 23:18:20,620 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2024-11-09 23:18:20,620 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2024-11-09 23:18:20,620 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2024-11-09 23:18:20,620 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-11-09 23:18:20,620 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-11-09 23:18:20,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 23:18:20,621 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-09 23:18:20,621 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-09 23:18:20,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 23:18:20,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 23:18:20,752 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 23:18:20,755 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 23:18:20,879 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L431-1: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~2#1; [2024-11-09 23:18:20,879 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L974-1: getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~9#1; [2024-11-09 23:18:20,934 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L150-1: main_#res#1 := main_~retValue_acc~0#1; [2024-11-09 23:18:20,934 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1032-1: valid_product_#res#1 := valid_product_~retValue_acc~13#1; [2024-11-09 23:18:20,955 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L486-1: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~3#1; [2024-11-09 23:18:20,955 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L988-1: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~10#1; [2024-11-09 23:18:20,980 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L505-1: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~4#1; [2024-11-09 23:18:20,980 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L997-1: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~11#1; [2024-11-09 23:18:20,988 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L942-1: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~8#1; [2024-11-09 23:18:20,988 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L422: #res#1 := ~retValue_acc~1#1; [2024-11-09 23:18:21,019 INFO L? ?]: Removed 53 outVars from TransFormulas that were not future-live. [2024-11-09 23:18:21,019 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 23:18:21,035 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 23:18:21,036 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 23:18:21,036 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 11:18:21 BoogieIcfgContainer [2024-11-09 23:18:21,036 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 23:18:21,037 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 23:18:21,037 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 23:18:21,040 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 23:18:21,040 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 11:18:20" (1/3) ... [2024-11-09 23:18:21,041 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c860c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:18:21, skipping insertion in model container [2024-11-09 23:18:21,041 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:18:20" (2/3) ... [2024-11-09 23:18:21,041 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c860c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:18:21, skipping insertion in model container [2024-11-09 23:18:21,041 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 11:18:21" (3/3) ... [2024-11-09 23:18:21,042 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product64.cil.c [2024-11-09 23:18:21,055 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 23:18:21,055 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 23:18:21,100 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 23:18:21,106 INFO L333 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, 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;@3d99ed85, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 23:18:21,106 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 23:18:21,110 INFO L276 IsEmpty]: Start isEmpty. Operand has 112 states, 84 states have (on average 1.3571428571428572) internal successors, (114), 95 states have internal predecessors, (114), 17 states have call successors, (17), 9 states have call predecessors, (17), 9 states have return successors, (17), 12 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-09 23:18:21,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-09 23:18:21,116 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:18:21,117 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:18:21,117 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:18:21,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:18:21,121 INFO L85 PathProgramCache]: Analyzing trace with hash -2102122138, now seen corresponding path program 1 times [2024-11-09 23:18:21,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:18:21,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137899916] [2024-11-09 23:18:21,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:18:21,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:18:21,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:21,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:18:21,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:18:21,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137899916] [2024-11-09 23:18:21,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137899916] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:18:21,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:18:21,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 23:18:21,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035018165] [2024-11-09 23:18:21,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:18:21,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 23:18:21,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:18:21,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 23:18:21,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 23:18:21,303 INFO L87 Difference]: Start difference. First operand has 112 states, 84 states have (on average 1.3571428571428572) internal successors, (114), 95 states have internal predecessors, (114), 17 states have call successors, (17), 9 states have call predecessors, (17), 9 states have return successors, (17), 12 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:18:21,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:18:21,353 INFO L93 Difference]: Finished difference Result 215 states and 290 transitions. [2024-11-09 23:18:21,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 23:18:21,355 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2024-11-09 23:18:21,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:18:21,370 INFO L225 Difference]: With dead ends: 215 [2024-11-09 23:18:21,370 INFO L226 Difference]: Without dead ends: 101 [2024-11-09 23:18:21,373 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 23:18:21,382 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:18:21,383 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:18:21,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-09 23:18:21,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2024-11-09 23:18:21,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 75 states have (on average 1.3066666666666666) internal successors, (98), 85 states have internal predecessors, (98), 17 states have call successors, (17), 9 states have call predecessors, (17), 8 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-09 23:18:21,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 131 transitions. [2024-11-09 23:18:21,447 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 131 transitions. Word has length 21 [2024-11-09 23:18:21,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:18:21,448 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 131 transitions. [2024-11-09 23:18:21,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:18:21,448 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 131 transitions. [2024-11-09 23:18:21,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-09 23:18:21,451 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:18:21,451 INFO L215 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] [2024-11-09 23:18:21,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 23:18:21,452 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:18:21,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:18:21,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1100266828, now seen corresponding path program 1 times [2024-11-09 23:18:21,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:18:21,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085095011] [2024-11-09 23:18:21,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:18:21,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:18:21,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:21,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:18:21,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:18:21,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085095011] [2024-11-09 23:18:21,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085095011] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:18:21,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:18:21,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:18:21,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074078505] [2024-11-09 23:18:21,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:18:21,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:18:21,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:18:21,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:18:21,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:18:21,562 INFO L87 Difference]: Start difference. First operand 101 states and 131 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:18:21,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:18:21,584 INFO L93 Difference]: Finished difference Result 162 states and 210 transitions. [2024-11-09 23:18:21,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:18:21,585 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2024-11-09 23:18:21,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:18:21,587 INFO L225 Difference]: With dead ends: 162 [2024-11-09 23:18:21,589 INFO L226 Difference]: Without dead ends: 91 [2024-11-09 23:18:21,589 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:18:21,591 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 16 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:18:21,591 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 212 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:18:21,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-11-09 23:18:21,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2024-11-09 23:18:21,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 68 states have (on average 1.3235294117647058) internal successors, (90), 78 states have internal predecessors, (90), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 9 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-09 23:18:21,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 118 transitions. [2024-11-09 23:18:21,604 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 118 transitions. Word has length 23 [2024-11-09 23:18:21,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:18:21,604 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 118 transitions. [2024-11-09 23:18:21,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:18:21,604 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 118 transitions. [2024-11-09 23:18:21,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-09 23:18:21,605 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:18:21,605 INFO L215 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] [2024-11-09 23:18:21,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 23:18:21,606 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:18:21,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:18:21,606 INFO L85 PathProgramCache]: Analyzing trace with hash -654314265, now seen corresponding path program 1 times [2024-11-09 23:18:21,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:18:21,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667396673] [2024-11-09 23:18:21,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:18:21,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:18:21,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:21,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:18:21,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:18:21,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667396673] [2024-11-09 23:18:21,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667396673] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:18:21,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:18:21,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 23:18:21,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927416321] [2024-11-09 23:18:21,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:18:21,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 23:18:21,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:18:21,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 23:18:21,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 23:18:21,714 INFO L87 Difference]: Start difference. First operand 91 states and 118 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:18:21,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:18:21,904 INFO L93 Difference]: Finished difference Result 296 states and 391 transitions. [2024-11-09 23:18:21,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 23:18:21,905 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2024-11-09 23:18:21,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:18:21,907 INFO L225 Difference]: With dead ends: 296 [2024-11-09 23:18:21,909 INFO L226 Difference]: Without dead ends: 212 [2024-11-09 23:18:21,910 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-09 23:18:21,910 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 205 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:18:21,912 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 485 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:18:21,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2024-11-09 23:18:21,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 204. [2024-11-09 23:18:21,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 151 states have (on average 1.3576158940397351) internal successors, (205), 173 states have internal predecessors, (205), 32 states have call successors, (32), 20 states have call predecessors, (32), 20 states have return successors, (33), 20 states have call predecessors, (33), 32 states have call successors, (33) [2024-11-09 23:18:21,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 270 transitions. [2024-11-09 23:18:21,949 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 270 transitions. Word has length 26 [2024-11-09 23:18:21,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:18:21,950 INFO L471 AbstractCegarLoop]: Abstraction has 204 states and 270 transitions. [2024-11-09 23:18:21,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:18:21,950 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 270 transitions. [2024-11-09 23:18:21,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-09 23:18:21,951 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:18:21,951 INFO L215 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] [2024-11-09 23:18:21,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 23:18:21,951 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:18:21,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:18:21,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1850114011, now seen corresponding path program 1 times [2024-11-09 23:18:21,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:18:21,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118647435] [2024-11-09 23:18:21,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:18:21,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:18:21,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:22,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:18:22,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:18:22,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118647435] [2024-11-09 23:18:22,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118647435] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:18:22,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:18:22,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:18:22,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908798577] [2024-11-09 23:18:22,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:18:22,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 23:18:22,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:18:22,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 23:18:22,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-09 23:18:22,108 INFO L87 Difference]: Start difference. First operand 204 states and 270 transitions. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 7 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:18:22,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:18:22,382 INFO L93 Difference]: Finished difference Result 768 states and 1081 transitions. [2024-11-09 23:18:22,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 23:18:22,383 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 7 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2024-11-09 23:18:22,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:18:22,387 INFO L225 Difference]: With dead ends: 768 [2024-11-09 23:18:22,387 INFO L226 Difference]: Without dead ends: 571 [2024-11-09 23:18:22,388 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-11-09 23:18:22,388 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 252 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 663 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 23:18:22,389 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 663 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 23:18:22,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2024-11-09 23:18:22,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 565. [2024-11-09 23:18:22,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 414 states have (on average 1.3357487922705313) internal successors, (553), 475 states have internal predecessors, (553), 93 states have call successors, (93), 57 states have call predecessors, (93), 57 states have return successors, (121), 57 states have call predecessors, (121), 93 states have call successors, (121) [2024-11-09 23:18:22,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 767 transitions. [2024-11-09 23:18:22,429 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 767 transitions. Word has length 29 [2024-11-09 23:18:22,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:18:22,429 INFO L471 AbstractCegarLoop]: Abstraction has 565 states and 767 transitions. [2024-11-09 23:18:22,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 7 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:18:22,430 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 767 transitions. [2024-11-09 23:18:22,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-09 23:18:22,432 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:18:22,432 INFO L215 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] [2024-11-09 23:18:22,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 23:18:22,432 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:18:22,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:18:22,433 INFO L85 PathProgramCache]: Analyzing trace with hash -2008543976, now seen corresponding path program 1 times [2024-11-09 23:18:22,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:18:22,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489232750] [2024-11-09 23:18:22,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:18:22,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:18:22,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:22,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:18:22,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:18:22,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489232750] [2024-11-09 23:18:22,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489232750] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:18:22,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:18:22,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 23:18:22,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369038243] [2024-11-09 23:18:22,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:18:22,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:18:22,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:18:22,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:18:22,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:18:22,468 INFO L87 Difference]: Start difference. First operand 565 states and 767 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:18:22,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:18:22,524 INFO L93 Difference]: Finished difference Result 1322 states and 1855 transitions. [2024-11-09 23:18:22,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:18:22,525 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2024-11-09 23:18:22,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:18:22,531 INFO L225 Difference]: With dead ends: 1322 [2024-11-09 23:18:22,531 INFO L226 Difference]: Without dead ends: 764 [2024-11-09 23:18:22,533 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:18:22,534 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 69 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:18:22,537 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 188 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:18:22,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 764 states. [2024-11-09 23:18:22,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 764 to 750. [2024-11-09 23:18:22,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 750 states, 567 states have (on average 1.271604938271605) internal successors, (721), 616 states have internal predecessors, (721), 93 states have call successors, (93), 85 states have call predecessors, (93), 89 states have return successors, (174), 87 states have call predecessors, (174), 93 states have call successors, (174) [2024-11-09 23:18:22,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 988 transitions. [2024-11-09 23:18:22,589 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 988 transitions. Word has length 31 [2024-11-09 23:18:22,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:18:22,590 INFO L471 AbstractCegarLoop]: Abstraction has 750 states and 988 transitions. [2024-11-09 23:18:22,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:18:22,591 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 988 transitions. [2024-11-09 23:18:22,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-09 23:18:22,594 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:18:22,594 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 23:18:22,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 23:18:22,594 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:18:22,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:18:22,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1506398952, now seen corresponding path program 1 times [2024-11-09 23:18:22,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:18:22,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312788414] [2024-11-09 23:18:22,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:18:22,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:18:22,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:22,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-09 23:18:22,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:22,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-09 23:18:22,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:22,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-09 23:18:22,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:22,694 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 23:18:22,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:18:22,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312788414] [2024-11-09 23:18:22,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312788414] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:18:22,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1956473654] [2024-11-09 23:18:22,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:18:22,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:18:22,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:18:22,697 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 23:18:22,733 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 23:18:22,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:22,798 INFO L255 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 23:18:22,803 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:18:22,973 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 23:18:22,973 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 23:18:23,225 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 16 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:18:23,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1956473654] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 23:18:23,225 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 23:18:23,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 7] total 15 [2024-11-09 23:18:23,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070445240] [2024-11-09 23:18:23,226 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 23:18:23,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-09 23:18:23,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:18:23,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-09 23:18:23,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2024-11-09 23:18:23,231 INFO L87 Difference]: Start difference. First operand 750 states and 988 transitions. Second operand has 15 states, 15 states have (on average 6.066666666666666) internal successors, (91), 12 states have internal predecessors, (91), 4 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-09 23:18:24,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:18:24,651 INFO L93 Difference]: Finished difference Result 1992 states and 2723 transitions. [2024-11-09 23:18:24,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-11-09 23:18:24,652 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.066666666666666) internal successors, (91), 12 states have internal predecessors, (91), 4 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 55 [2024-11-09 23:18:24,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:18:24,657 INFO L225 Difference]: With dead ends: 1992 [2024-11-09 23:18:24,657 INFO L226 Difference]: Without dead ends: 1451 [2024-11-09 23:18:24,659 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 105 SyntacticMatches, 4 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 817 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=608, Invalid=2472, Unknown=0, NotChecked=0, Total=3080 [2024-11-09 23:18:24,660 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 1334 mSDsluCounter, 697 mSDsCounter, 0 mSdLazyCounter, 1479 mSolverCounterSat, 489 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1346 SdHoareTripleChecker+Valid, 822 SdHoareTripleChecker+Invalid, 1968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 489 IncrementalHoareTripleChecker+Valid, 1479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 23:18:24,660 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1346 Valid, 822 Invalid, 1968 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [489 Valid, 1479 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 23:18:24,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1451 states. [2024-11-09 23:18:24,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1451 to 1358. [2024-11-09 23:18:24,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1358 states, 1023 states have (on average 1.2502443792766373) internal successors, (1279), 1108 states have internal predecessors, (1279), 153 states have call successors, (153), 139 states have call predecessors, (153), 181 states have return successors, (339), 162 states have call predecessors, (339), 153 states have call successors, (339) [2024-11-09 23:18:24,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1358 states to 1358 states and 1771 transitions. [2024-11-09 23:18:24,726 INFO L78 Accepts]: Start accepts. Automaton has 1358 states and 1771 transitions. Word has length 55 [2024-11-09 23:18:24,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:18:24,726 INFO L471 AbstractCegarLoop]: Abstraction has 1358 states and 1771 transitions. [2024-11-09 23:18:24,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.066666666666666) internal successors, (91), 12 states have internal predecessors, (91), 4 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-09 23:18:24,727 INFO L276 IsEmpty]: Start isEmpty. Operand 1358 states and 1771 transitions. [2024-11-09 23:18:24,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-09 23:18:24,729 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:18:24,730 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:18:24,744 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 23:18:24,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-09 23:18:24,937 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:18:24,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:18:24,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1372593553, now seen corresponding path program 1 times [2024-11-09 23:18:24,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:18:24,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982247659] [2024-11-09 23:18:24,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:18:24,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:18:24,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:24,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-09 23:18:24,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:25,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-09 23:18:25,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:25,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 23:18:25,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:25,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 23:18:25,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:25,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-09 23:18:25,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:25,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-09 23:18:25,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:25,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-09 23:18:25,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:25,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 23:18:25,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:25,057 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 23:18:25,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:18:25,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982247659] [2024-11-09 23:18:25,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982247659] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:18:25,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1960641024] [2024-11-09 23:18:25,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:18:25,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:18:25,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:18:25,060 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 23:18:25,062 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 23:18:25,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:25,141 INFO L255 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 23:18:25,143 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:18:25,163 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 23:18:25,163 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 23:18:25,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1960641024] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:18:25,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 23:18:25,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 7 [2024-11-09 23:18:25,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645628887] [2024-11-09 23:18:25,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:18:25,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:18:25,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:18:25,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:18:25,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:18:25,191 INFO L87 Difference]: Start difference. First operand 1358 states and 1771 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 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) [2024-11-09 23:18:25,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:18:25,262 INFO L93 Difference]: Finished difference Result 2739 states and 3785 transitions. [2024-11-09 23:18:25,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:18:25,264 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 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 100 [2024-11-09 23:18:25,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:18:25,273 INFO L225 Difference]: With dead ends: 2739 [2024-11-09 23:18:25,273 INFO L226 Difference]: Without dead ends: 1388 [2024-11-09 23:18:25,279 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:18:25,280 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 0 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:18:25,280 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 454 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:18:25,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1388 states. [2024-11-09 23:18:25,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1388 to 1388. [2024-11-09 23:18:25,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1388 states, 1053 states have (on average 1.2431149097815763) internal successors, (1309), 1138 states have internal predecessors, (1309), 153 states have call successors, (153), 139 states have call predecessors, (153), 181 states have return successors, (339), 162 states have call predecessors, (339), 153 states have call successors, (339) [2024-11-09 23:18:25,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 1801 transitions. [2024-11-09 23:18:25,340 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 1801 transitions. Word has length 100 [2024-11-09 23:18:25,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:18:25,341 INFO L471 AbstractCegarLoop]: Abstraction has 1388 states and 1801 transitions. [2024-11-09 23:18:25,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 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) [2024-11-09 23:18:25,341 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 1801 transitions. [2024-11-09 23:18:25,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-09 23:18:25,343 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:18:25,344 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:18:25,360 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 23:18:25,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-09 23:18:25,545 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:18:25,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:18:25,545 INFO L85 PathProgramCache]: Analyzing trace with hash -736439696, now seen corresponding path program 1 times [2024-11-09 23:18:25,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:18:25,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795104896] [2024-11-09 23:18:25,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:18:25,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:18:25,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:25,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-09 23:18:25,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:25,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-09 23:18:25,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:25,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 23:18:25,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:25,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 23:18:25,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:25,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-09 23:18:25,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:25,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-09 23:18:25,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:25,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-09 23:18:25,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:25,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 23:18:25,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:25,747 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 23:18:25,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:18:25,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795104896] [2024-11-09 23:18:25,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795104896] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:18:25,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1383136224] [2024-11-09 23:18:25,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:18:25,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:18:25,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:18:25,753 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 23:18:25,754 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 23:18:25,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:25,831 INFO L255 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 23:18:25,833 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:18:25,844 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 23:18:25,844 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 23:18:25,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1383136224] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:18:25,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 23:18:25,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 6 [2024-11-09 23:18:25,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039453436] [2024-11-09 23:18:25,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:18:25,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 23:18:25,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:18:25,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 23:18:25,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 23:18:25,846 INFO L87 Difference]: Start difference. First operand 1388 states and 1801 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 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) [2024-11-09 23:18:25,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:18:25,913 INFO L93 Difference]: Finished difference Result 2539 states and 3399 transitions. [2024-11-09 23:18:25,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 23:18:25,913 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 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 100 [2024-11-09 23:18:25,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:18:25,918 INFO L225 Difference]: With dead ends: 2539 [2024-11-09 23:18:25,918 INFO L226 Difference]: Without dead ends: 1158 [2024-11-09 23:18:25,921 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 23:18:25,922 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 0 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:18:25,922 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 342 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:18:25,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2024-11-09 23:18:25,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 1158. [2024-11-09 23:18:25,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1158 states, 873 states have (on average 1.2416953035509737) internal successors, (1084), 939 states have internal predecessors, (1084), 138 states have call successors, (138), 124 states have call predecessors, (138), 146 states have return successors, (269), 135 states have call predecessors, (269), 138 states have call successors, (269) [2024-11-09 23:18:25,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1158 states to 1158 states and 1491 transitions. [2024-11-09 23:18:25,967 INFO L78 Accepts]: Start accepts. Automaton has 1158 states and 1491 transitions. Word has length 100 [2024-11-09 23:18:25,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:18:25,967 INFO L471 AbstractCegarLoop]: Abstraction has 1158 states and 1491 transitions. [2024-11-09 23:18:25,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 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) [2024-11-09 23:18:25,968 INFO L276 IsEmpty]: Start isEmpty. Operand 1158 states and 1491 transitions. [2024-11-09 23:18:25,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-09 23:18:25,969 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:18:25,970 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:18:25,985 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-09 23:18:26,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:18:26,174 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:18:26,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:18:26,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1228323120, now seen corresponding path program 1 times [2024-11-09 23:18:26,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:18:26,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093886975] [2024-11-09 23:18:26,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:18:26,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:18:26,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:26,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-09 23:18:26,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:26,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-09 23:18:26,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:26,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-09 23:18:26,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:26,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 23:18:26,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:26,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 23:18:26,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:26,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-09 23:18:26,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:26,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-09 23:18:26,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:26,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-09 23:18:26,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:26,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 23:18:26,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:26,375 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 12 proven. 9 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 23:18:26,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:18:26,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093886975] [2024-11-09 23:18:26,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093886975] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:18:26,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1559888671] [2024-11-09 23:18:26,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:18:26,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:18:26,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:18:26,380 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 23:18:26,381 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 23:18:26,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:26,451 INFO L255 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 23:18:26,454 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:18:26,598 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 17 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:18:26,598 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 23:18:26,794 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 13 proven. 8 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 23:18:26,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1559888671] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 23:18:26,794 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 23:18:26,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6] total 11 [2024-11-09 23:18:26,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073507077] [2024-11-09 23:18:26,795 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 23:18:26,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 23:18:26,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:18:26,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 23:18:26,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-09 23:18:26,796 INFO L87 Difference]: Start difference. First operand 1158 states and 1491 transitions. Second operand has 11 states, 11 states have (on average 9.545454545454545) internal successors, (105), 8 states have internal predecessors, (105), 3 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-09 23:18:27,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:18:27,687 INFO L93 Difference]: Finished difference Result 2222 states and 2887 transitions. [2024-11-09 23:18:27,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-09 23:18:27,688 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.545454545454545) internal successors, (105), 8 states have internal predecessors, (105), 3 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 104 [2024-11-09 23:18:27,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:18:27,694 INFO L225 Difference]: With dead ends: 2222 [2024-11-09 23:18:27,694 INFO L226 Difference]: Without dead ends: 1195 [2024-11-09 23:18:27,697 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 223 SyntacticMatches, 8 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=218, Invalid=712, Unknown=0, NotChecked=0, Total=930 [2024-11-09 23:18:27,698 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 357 mSDsluCounter, 571 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 660 SdHoareTripleChecker+Invalid, 887 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 23:18:27,698 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [365 Valid, 660 Invalid, 887 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 23:18:27,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1195 states. [2024-11-09 23:18:27,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1195 to 1076. [2024-11-09 23:18:27,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1076 states, 805 states have (on average 1.2211180124223602) internal successors, (983), 869 states have internal predecessors, (983), 131 states have call successors, (131), 117 states have call predecessors, (131), 139 states have return successors, (260), 123 states have call predecessors, (260), 131 states have call successors, (260) [2024-11-09 23:18:27,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1076 states to 1076 states and 1374 transitions. [2024-11-09 23:18:27,758 INFO L78 Accepts]: Start accepts. Automaton has 1076 states and 1374 transitions. Word has length 104 [2024-11-09 23:18:27,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:18:27,758 INFO L471 AbstractCegarLoop]: Abstraction has 1076 states and 1374 transitions. [2024-11-09 23:18:27,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.545454545454545) internal successors, (105), 8 states have internal predecessors, (105), 3 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-09 23:18:27,758 INFO L276 IsEmpty]: Start isEmpty. Operand 1076 states and 1374 transitions. [2024-11-09 23:18:27,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-09 23:18:27,761 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:18:27,761 INFO L215 NwaCegarLoop]: trace histogram [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, 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] [2024-11-09 23:18:27,779 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 23:18:27,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:18:27,962 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:18:27,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:18:27,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1425378141, now seen corresponding path program 2 times [2024-11-09 23:18:27,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:18:27,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034904732] [2024-11-09 23:18:27,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:18:27,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:18:27,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:28,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-09 23:18:28,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:28,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-09 23:18:28,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:28,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-09 23:18:28,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:28,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 23:18:28,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:28,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 23:18:28,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:28,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-09 23:18:28,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:28,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-09 23:18:28,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:28,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:18:28,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:28,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-09 23:18:28,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:28,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 23:18:28,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:28,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-09 23:18:28,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:28,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-09 23:18:28,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:28,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-09 23:18:28,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:28,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 23:18:28,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:28,199 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 52 proven. 23 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 23:18:28,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:18:28,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034904732] [2024-11-09 23:18:28,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034904732] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:18:28,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2017530213] [2024-11-09 23:18:28,199 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 23:18:28,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:18:28,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:18:28,201 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 23:18:28,201 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 23:18:28,292 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 23:18:28,292 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 23:18:28,294 INFO L255 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 23:18:28,296 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:18:28,398 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-09 23:18:28,399 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 23:18:28,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2017530213] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:18:28,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 23:18:28,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 14 [2024-11-09 23:18:28,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121491515] [2024-11-09 23:18:28,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:18:28,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 23:18:28,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:18:28,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 23:18:28,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-09 23:18:28,401 INFO L87 Difference]: Start difference. First operand 1076 states and 1374 transitions. Second operand has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 states have internal predecessors, (109), 3 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-09 23:18:28,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:18:28,604 INFO L93 Difference]: Finished difference Result 2806 states and 3731 transitions. [2024-11-09 23:18:28,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 23:18:28,604 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 states have internal predecessors, (109), 3 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 151 [2024-11-09 23:18:28,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:18:28,612 INFO L225 Difference]: With dead ends: 2806 [2024-11-09 23:18:28,612 INFO L226 Difference]: Without dead ends: 1859 [2024-11-09 23:18:28,615 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 174 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2024-11-09 23:18:28,616 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 203 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 677 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:18:28,616 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 677 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:18:28,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1859 states. [2024-11-09 23:18:28,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1859 to 1833. [2024-11-09 23:18:28,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1833 states, 1378 states have (on average 1.218432510885341) internal successors, (1679), 1472 states have internal predecessors, (1679), 222 states have call successors, (222), 202 states have call predecessors, (222), 232 states have return successors, (410), 210 states have call predecessors, (410), 222 states have call successors, (410) [2024-11-09 23:18:28,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1833 states to 1833 states and 2311 transitions. [2024-11-09 23:18:28,693 INFO L78 Accepts]: Start accepts. Automaton has 1833 states and 2311 transitions. Word has length 151 [2024-11-09 23:18:28,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:18:28,693 INFO L471 AbstractCegarLoop]: Abstraction has 1833 states and 2311 transitions. [2024-11-09 23:18:28,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 states have internal predecessors, (109), 3 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-09 23:18:28,694 INFO L276 IsEmpty]: Start isEmpty. Operand 1833 states and 2311 transitions. [2024-11-09 23:18:28,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-09 23:18:28,697 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:18:28,697 INFO L215 NwaCegarLoop]: trace histogram [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, 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] [2024-11-09 23:18:28,714 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-09 23:18:28,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-09 23:18:28,900 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:18:28,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:18:28,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1179065054, now seen corresponding path program 1 times [2024-11-09 23:18:28,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:18:28,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60272962] [2024-11-09 23:18:28,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:18:28,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:18:28,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:28,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-09 23:18:28,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:28,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-09 23:18:28,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:28,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-09 23:18:28,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:28,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 23:18:28,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:28,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 23:18:28,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:28,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-09 23:18:28,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:28,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-09 23:18:28,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:28,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:18:28,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:29,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-09 23:18:29,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:29,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 23:18:29,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:29,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-09 23:18:29,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:29,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-09 23:18:29,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:29,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-09 23:18:29,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:29,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 23:18:29,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:29,042 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 45 proven. 6 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-09 23:18:29,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:18:29,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60272962] [2024-11-09 23:18:29,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60272962] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:18:29,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1892037455] [2024-11-09 23:18:29,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:18:29,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:18:29,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:18:29,051 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 23:18:29,052 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 23:18:29,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:29,204 INFO L255 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 23:18:29,206 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:18:29,218 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-09 23:18:29,218 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 23:18:29,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1892037455] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:18:29,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 23:18:29,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 8 [2024-11-09 23:18:29,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475516309] [2024-11-09 23:18:29,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:18:29,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:18:29,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:18:29,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:18:29,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-09 23:18:29,237 INFO L87 Difference]: Start difference. First operand 1833 states and 2311 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-09 23:18:29,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:18:29,292 INFO L93 Difference]: Finished difference Result 2491 states and 3131 transitions. [2024-11-09 23:18:29,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:18:29,293 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 151 [2024-11-09 23:18:29,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:18:29,296 INFO L225 Difference]: With dead ends: 2491 [2024-11-09 23:18:29,296 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 23:18:29,301 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-09 23:18:29,301 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 0 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:18:29,302 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 432 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:18:29,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 23:18:29,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 23:18:29,303 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) [2024-11-09 23:18:29,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 23:18:29,304 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 151 [2024-11-09 23:18:29,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:18:29,304 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 23:18:29,305 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-09 23:18:29,305 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 23:18:29,305 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 23:18:29,307 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 23:18:29,323 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-09 23:18:29,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:18:29,515 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:18:29,517 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 23:18:31,535 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 23:18:31,547 WARN L156 FloydHoareUtils]: Requires clause for deactivatePump contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 ~waterLevel~0) (not (= 0 ~systemActive~0))) Eliminated clause: (and (<= 1 ~waterLevel~0) (not (= 0 ~systemActive~0))) [2024-11-09 23:18:31,564 WARN L156 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (or (and (= |old(~pumpRunning~0)| 0) (<= 1 |old(~waterLevel~0)|)) (and (<= 2 |old(~waterLevel~0)|) (not (= 0 ~systemActive~0)))) (= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (or (and (<= 2 ~waterLevel~0) (not (= 0 ~systemActive~0))) (and (= ~pumpRunning~0 0) (<= 1 ~waterLevel~0))) [2024-11-09 23:18:31,574 WARN L156 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__highWaterSensor contained old-variable. Original clause: (and (= ~pumpRunning~0 0) (let ((.cse0 (= |old(~pumpRunning~0)| 0)) (.cse1 (not (= 0 ~systemActive~0)))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and .cse0 (= ~waterLevel~0 1) .cse1)))) Eliminated clause: (and (= ~pumpRunning~0 0) (let ((.cse0 (not (= 0 ~systemActive~0)))) (or (and (= ~waterLevel~0 1) .cse0) (and (<= 2 ~waterLevel~0) .cse0)))) [2024-11-09 23:18:31,577 WARN L156 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (and (or (and (<= 2 |old(~waterLevel~0)|) (not (= 0 ~systemActive~0))) (and (= ~pumpRunning~0 0) (<= 1 |old(~waterLevel~0)|))) (= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (or (and (<= 2 ~waterLevel~0) (not (= 0 ~systemActive~0))) (and (= ~pumpRunning~0 0) (<= 1 ~waterLevel~0))) [2024-11-09 23:18:31,583 WARN L156 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__methaneQuery contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 ~waterLevel~0) (not (= 0 ~systemActive~0))) Eliminated clause: (and (<= 1 ~waterLevel~0) (not (= 0 ~systemActive~0))) [2024-11-09 23:18:31,585 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 11:18:31 BoogieIcfgContainer [2024-11-09 23:18:31,585 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 23:18:31,586 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 23:18:31,586 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 23:18:31,586 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 23:18:31,587 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 11:18:21" (3/4) ... [2024-11-09 23:18:31,588 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-09 23:18:31,591 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-11-09 23:18:31,591 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-09 23:18:31,591 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-09 23:18:31,592 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-09 23:18:31,592 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-09 23:18:31,592 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-11-09 23:18:31,592 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-09 23:18:31,592 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2024-11-09 23:18:31,592 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2024-11-09 23:18:31,599 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 44 nodes and edges [2024-11-09 23:18:31,601 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-11-09 23:18:31,601 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-09 23:18:31,602 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 23:18:31,602 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 23:18:31,699 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 23:18:31,699 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-09 23:18:31,699 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 23:18:31,700 INFO L158 Benchmark]: Toolchain (without parser) took 11684.09ms. Allocated memory was 201.3MB in the beginning and 390.1MB in the end (delta: 188.7MB). Free memory was 129.7MB in the beginning and 221.4MB in the end (delta: -91.7MB). Peak memory consumption was 97.3MB. Max. memory is 16.1GB. [2024-11-09 23:18:31,700 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 201.3MB. Free memory is still 159.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 23:18:31,700 INFO L158 Benchmark]: CACSL2BoogieTranslator took 426.95ms. Allocated memory is still 201.3MB. Free memory was 129.4MB in the beginning and 107.6MB in the end (delta: 21.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-09 23:18:31,701 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.12ms. Allocated memory is still 201.3MB. Free memory was 107.3MB in the beginning and 105.0MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 23:18:31,701 INFO L158 Benchmark]: Boogie Preprocessor took 53.24ms. Allocated memory is still 201.3MB. Free memory was 105.0MB in the beginning and 102.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 23:18:31,704 INFO L158 Benchmark]: IcfgBuilder took 501.85ms. Allocated memory is still 201.3MB. Free memory was 102.9MB in the beginning and 155.3MB in the end (delta: -52.4MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. [2024-11-09 23:18:31,704 INFO L158 Benchmark]: TraceAbstraction took 10548.23ms. Allocated memory was 201.3MB in the beginning and 390.1MB in the end (delta: 188.7MB). Free memory was 155.3MB in the beginning and 229.8MB in the end (delta: -74.5MB). Peak memory consumption was 219.1MB. Max. memory is 16.1GB. [2024-11-09 23:18:31,704 INFO L158 Benchmark]: Witness Printer took 113.64ms. Allocated memory is still 390.1MB. Free memory was 229.8MB in the beginning and 221.4MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-09 23:18:31,705 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 201.3MB. Free memory is still 159.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 426.95ms. Allocated memory is still 201.3MB. Free memory was 129.4MB in the beginning and 107.6MB in the end (delta: 21.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.12ms. Allocated memory is still 201.3MB. Free memory was 107.3MB in the beginning and 105.0MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.24ms. Allocated memory is still 201.3MB. Free memory was 105.0MB in the beginning and 102.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 501.85ms. Allocated memory is still 201.3MB. Free memory was 102.9MB in the beginning and 155.3MB in the end (delta: -52.4MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. * TraceAbstraction took 10548.23ms. Allocated memory was 201.3MB in the beginning and 390.1MB in the end (delta: 188.7MB). Free memory was 155.3MB in the beginning and 229.8MB in the end (delta: -74.5MB). Peak memory consumption was 219.1MB. Max. memory is 16.1GB. * Witness Printer took 113.64ms. Allocated memory is still 390.1MB. Free memory was 229.8MB in the beginning and 221.4MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [49] - GenericResultAtLocation [Line: 153]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [153] - GenericResultAtLocation [Line: 162]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [162] - GenericResultAtLocation [Line: 190]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [190] - GenericResultAtLocation [Line: 261]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [261] - GenericResultAtLocation [Line: 531]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [531] - GenericResultAtLocation [Line: 897]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [897] - GenericResultAtLocation [Line: 1000]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1000] * 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: 158]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 112 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.4s, OverallIterations: 11, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2460 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2436 mSDsluCounter, 5076 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3715 mSDsCounter, 676 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2738 IncrementalHoareTripleChecker+Invalid, 3414 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 676 mSolverCounterUnsat, 1361 mSDtfsCounter, 2738 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1075 GetRequests, 926 SyntacticMatches, 15 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1135 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1833occurred in iteration=10, InterpolantAutomatonStates: 122, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 11 MinimizatonAttempts, 266 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 1452 NumberOfCodeBlocks, 1452 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 1592 ConstructedInterpolants, 0 QuantifiedInterpolants, 2730 SizeOfPredicates, 3 NumberOfNonLiveVariables, 2135 ConjunctsInSsa, 47 ConjunctsInUnsatCore, 19 InterpolantComputations, 9 PerfectInterpolantSequences, 608/680 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: 203]: Location Invariant Derived location invariant: null - InvariantResult [Line: 62]: Location Invariant Derived location invariant: null - ProcedureContractResult [Line: 406]: Procedure Contract for deactivatePump Derived contract for procedure deactivatePump. Requires: ((1 <= waterLevel) && (0 != systemActive)) Ensures: ((((pumpRunning == 0) && (1 <= waterLevel)) && (0 != systemActive)) && (((((cleanupTimeShifts == \old(cleanupTimeShifts)) && (systemActive == \old(systemActive))) && (head == \old(head))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical)))) - ProcedureContractResult [Line: 296]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: (((pumpRunning == 0) && (1 <= waterLevel)) && (0 != systemActive)) Ensures: ((((pumpRunning == 0) && (1 <= waterLevel)) && (0 != systemActive)) && ((((((cleanupTimeShifts == \old(cleanupTimeShifts)) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (head == \old(head))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical)))) - ProcedureContractResult [Line: 924]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Requires: (((2 <= waterLevel) && (0 != systemActive)) || ((pumpRunning == 0) && (1 <= waterLevel))) Ensures: ((((2 <= waterLevel) && (0 != systemActive)) || ((pumpRunning == 0) && (1 <= waterLevel))) && (((((cleanupTimeShifts == \old(cleanupTimeShifts)) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (head == \old(head))) && (waterLevel == \old(waterLevel)))) - ProcedureContractResult [Line: 272]: Procedure Contract for timeShift Derived contract for procedure timeShift. Requires: (((2 <= waterLevel) && (0 != systemActive)) || ((pumpRunning == 0) && (1 <= waterLevel))) Ensures: (((((\old(pumpRunning) == 0) || ((2 <= \old(waterLevel)) && (0 != systemActive))) && ((1 < waterLevel) || ((pumpRunning == 0) && (waterLevel == 1)))) && (((\old(pumpRunning) != 0) || ((\old(waterLevel) == waterLevel) && (0 != systemActive))) || ((pumpRunning == 0) && (\old(waterLevel) == waterLevel)))) && ((((cleanupTimeShifts == \old(cleanupTimeShifts)) && (systemActive == \old(systemActive))) && (head == \old(head))) && (methaneLevelCritical == \old(methaneLevelCritical)))) - ProcedureContractResult [Line: 52]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: (0 && ((((cleanupTimeShifts == \old(cleanupTimeShifts)) && (systemActive == \old(systemActive))) && (head == \old(head))) && (methaneLevelCritical == \old(methaneLevelCritical)))) - ProcedureContractResult [Line: 304]: Procedure Contract for processEnvironment__wrappee__highWaterSensor Derived contract for procedure processEnvironment__wrappee__highWaterSensor. Requires: ((pumpRunning == 0) && (((waterLevel == 1) && (0 != systemActive)) || ((2 <= waterLevel) && (0 != systemActive)))) Ensures: ((((waterLevel != 1) || (pumpRunning == 0)) && ((((2 <= waterLevel) && (\old(pumpRunning) == 0)) && (0 != systemActive)) || (((\old(pumpRunning) == 0) && (waterLevel == 1)) && (0 != systemActive)))) && (((((cleanupTimeShifts == \old(cleanupTimeShifts)) && (systemActive == \old(systemActive))) && (head == \old(head))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical)))) - ProcedureContractResult [Line: 912]: Procedure Contract for waterRise Derived contract for procedure waterRise. Requires: (((2 <= waterLevel) && (0 != systemActive)) || ((pumpRunning == 0) && (1 <= waterLevel))) Ensures: ((((((2 <= \old(waterLevel)) && (0 != systemActive)) || ((pumpRunning == 0) && (1 <= \old(waterLevel)))) && ((\old(waterLevel) < 2) || (\old(waterLevel) == waterLevel))) && (2 <= waterLevel)) && (((((cleanupTimeShifts == \old(cleanupTimeShifts)) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (head == \old(head))) && (methaneLevelCritical == \old(methaneLevelCritical)))) - ProcedureContractResult [Line: 330]: Procedure Contract for processEnvironment__wrappee__methaneQuery Derived contract for procedure processEnvironment__wrappee__methaneQuery. Requires: ((1 <= waterLevel) && (0 != systemActive)) Ensures: ((((1 <= waterLevel) && ((pumpRunning == 0) || (1 < waterLevel))) && (0 != systemActive)) && (((((cleanupTimeShifts == \old(cleanupTimeShifts)) && (systemActive == \old(systemActive))) && (head == \old(head))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical)))) - ProcedureContractResult [Line: 414]: Procedure Contract for isMethaneAlarm Derived contract for procedure isMethaneAlarm. Requires: ((1 <= waterLevel) && (0 != systemActive)) Ensures: (((1 <= waterLevel) && (0 != systemActive)) && ((((((cleanupTimeShifts == \old(cleanupTimeShifts)) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (head == \old(head))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical)))) RESULT: Ultimate proved your program to be correct! [2024-11-09 23:18:31,730 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE