./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product56.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_product56.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 03daf3415808298ae6016bdc33e04662b3dd63f1cba0029f4033bbf040a042d2 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 23:18:08,776 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 23:18:08,868 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 23:18:08,874 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 23:18:08,875 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 23:18:08,894 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 23:18:08,896 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 23:18:08,897 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 23:18:08,897 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 23:18:08,898 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 23:18:08,898 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 23:18:08,899 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 23:18:08,900 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 23:18:08,902 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 23:18:08,902 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 23:18:08,902 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 23:18:08,903 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 23:18:08,903 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 23:18:08,903 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 23:18:08,903 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 23:18:08,904 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 23:18:08,908 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 23:18:08,908 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 23:18:08,909 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 23:18:08,909 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 23:18:08,909 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 23:18:08,909 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 23:18:08,909 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 23:18:08,910 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 23:18:08,910 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 23:18:08,910 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 23:18:08,910 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 23:18:08,910 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 23:18:08,911 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 23:18:08,911 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 23:18:08,911 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 23:18:08,912 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 23:18:08,912 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 23:18:08,912 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 23:18:08,913 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 23:18:08,913 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 23:18:08,915 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 23:18:08,915 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 03daf3415808298ae6016bdc33e04662b3dd63f1cba0029f4033bbf040a042d2 [2024-11-09 23:18:09,210 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 23:18:09,237 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 23:18:09,240 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 23:18:09,241 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 23:18:09,242 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 23:18:09,243 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product56.cil.c [2024-11-09 23:18:10,686 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 23:18:10,947 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 23:18:10,952 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product56.cil.c [2024-11-09 23:18:10,972 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9cc4efb45/659cf452461641e5baff54f5ca4eb92e/FLAG559024f6d [2024-11-09 23:18:11,248 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9cc4efb45/659cf452461641e5baff54f5ca4eb92e [2024-11-09 23:18:11,250 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 23:18:11,252 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 23:18:11,254 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 23:18:11,254 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 23:18:11,260 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 23:18:11,261 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:18:11" (1/1) ... [2024-11-09 23:18:11,262 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40191759 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:18:11, skipping insertion in model container [2024-11-09 23:18:11,262 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:18:11" (1/1) ... [2024-11-09 23:18:11,315 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 23:18:11,662 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_product56.cil.c[17338,17351] [2024-11-09 23:18:11,675 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 23:18:11,697 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 23:18:11,708 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [49] [2024-11-09 23:18:11,710 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [308] [2024-11-09 23:18:11,710 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [674] [2024-11-09 23:18:11,710 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [746] [2024-11-09 23:18:11,710 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [774] [2024-11-09 23:18:11,711 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [873] [2024-11-09 23:18:11,711 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [882] [2024-11-09 23:18:11,711 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [985] [2024-11-09 23:18:11,781 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_product56.cil.c[17338,17351] [2024-11-09 23:18:11,789 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 23:18:11,817 INFO L204 MainTranslator]: Completed translation [2024-11-09 23:18:11,817 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:18:11 WrapperNode [2024-11-09 23:18:11,817 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 23:18:11,818 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 23:18:11,819 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 23:18:11,819 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 23:18:11,826 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:18:11" (1/1) ... [2024-11-09 23:18:11,844 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:18:11" (1/1) ... [2024-11-09 23:18:11,875 INFO L138 Inliner]: procedures = 58, calls = 105, calls flagged for inlining = 26, calls inlined = 23, statements flattened = 235 [2024-11-09 23:18:11,878 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 23:18:11,879 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 23:18:11,879 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 23:18:11,879 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 23:18:11,887 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:18:11" (1/1) ... [2024-11-09 23:18:11,888 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:18:11" (1/1) ... [2024-11-09 23:18:11,894 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:18:11" (1/1) ... [2024-11-09 23:18:11,924 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 23:18:11,925 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:18:11" (1/1) ... [2024-11-09 23:18:11,925 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:18:11" (1/1) ... [2024-11-09 23:18:11,932 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:18:11" (1/1) ... [2024-11-09 23:18:11,937 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:18:11" (1/1) ... [2024-11-09 23:18:11,938 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:18:11" (1/1) ... [2024-11-09 23:18:11,939 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:18:11" (1/1) ... [2024-11-09 23:18:11,942 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 23:18:11,943 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 23:18:11,944 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 23:18:11,944 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 23:18:11,945 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:18:11" (1/1) ... [2024-11-09 23:18:11,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 23:18:11,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:18:11,980 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 23:18:11,988 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 23:18:12,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 23:18:12,065 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-09 23:18:12,065 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-09 23:18:12,066 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-09 23:18:12,066 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-09 23:18:12,066 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-09 23:18:12,066 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-09 23:18:12,066 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-11-09 23:18:12,066 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-11-09 23:18:12,067 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-09 23:18:12,067 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-09 23:18:12,067 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2024-11-09 23:18:12,068 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2024-11-09 23:18:12,071 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-11-09 23:18:12,071 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-11-09 23:18:12,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 23:18:12,071 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-09 23:18:12,072 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-09 23:18:12,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 23:18:12,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 23:18:12,190 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 23:18:12,193 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 23:18:12,360 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L927-1: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~8#1; [2024-11-09 23:18:12,360 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L199-1: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~0#1; [2024-11-09 23:18:12,361 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L959-1: getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~9#1; [2024-11-09 23:18:12,361 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L208-1: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; [2024-11-09 23:18:12,444 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L870-1: main_#res#1 := main_~retValue_acc~7#1; [2024-11-09 23:18:12,445 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1017-1: valid_product_#res#1 := valid_product_~retValue_acc~13#1; [2024-11-09 23:18:12,467 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L973-1: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~10#1; [2024-11-09 23:18:12,468 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L263-1: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; [2024-11-09 23:18:12,488 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L282-1: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~3#1; [2024-11-09 23:18:12,489 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L982-1: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~11#1; [2024-11-09 23:18:12,510 INFO L? ?]: Removed 52 outVars from TransFormulas that were not future-live. [2024-11-09 23:18:12,511 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 23:18:12,527 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 23:18:12,527 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 23:18:12,528 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 11:18:12 BoogieIcfgContainer [2024-11-09 23:18:12,528 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 23:18:12,530 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 23:18:12,530 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 23:18:12,532 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 23:18:12,532 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 11:18:11" (1/3) ... [2024-11-09 23:18:12,533 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43ec3bd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:18:12, skipping insertion in model container [2024-11-09 23:18:12,533 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:18:11" (2/3) ... [2024-11-09 23:18:12,533 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43ec3bd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:18:12, skipping insertion in model container [2024-11-09 23:18:12,533 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 11:18:12" (3/3) ... [2024-11-09 23:18:12,534 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product56.cil.c [2024-11-09 23:18:12,551 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 23:18:12,551 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 23:18:12,596 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 23:18:12,600 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;@58e46cf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 23:18:12,600 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 23:18:12,604 INFO L276 IsEmpty]: Start isEmpty. Operand has 104 states, 79 states have (on average 1.3670886075949367) internal successors, (108), 90 states have internal predecessors, (108), 15 states have call successors, (15), 8 states have call predecessors, (15), 8 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-09 23:18:12,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-09 23:18:12,610 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:18:12,611 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 23:18:12,611 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:18:12,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:18:12,615 INFO L85 PathProgramCache]: Analyzing trace with hash 2079775403, now seen corresponding path program 1 times [2024-11-09 23:18:12,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:18:12,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220869998] [2024-11-09 23:18:12,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:18:12,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:18:12,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:12,787 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 23:18:12,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:18:12,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220869998] [2024-11-09 23:18:12,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220869998] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:18:12,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:18:12,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 23:18:12,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115885632] [2024-11-09 23:18:12,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:18:12,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 23:18:12,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:18:12,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 23:18:12,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 23:18:12,811 INFO L87 Difference]: Start difference. First operand has 104 states, 79 states have (on average 1.3670886075949367) internal successors, (108), 90 states have internal predecessors, (108), 15 states have call successors, (15), 8 states have call predecessors, (15), 8 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) 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 23:18:12,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:18:12,840 INFO L93 Difference]: Finished difference Result 199 states and 270 transitions. [2024-11-09 23:18:12,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 23:18:12,842 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 23:18:12,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:18:12,849 INFO L225 Difference]: With dead ends: 199 [2024-11-09 23:18:12,849 INFO L226 Difference]: Without dead ends: 93 [2024-11-09 23:18:12,853 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 23:18:12,859 INFO L432 NwaCegarLoop]: 131 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, 131 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 23:18:12,860 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:18:12,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-09 23:18:12,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2024-11-09 23:18:12,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 70 states have (on average 1.3142857142857143) internal successors, (92), 80 states have internal predecessors, (92), 15 states have call successors, (15), 8 states have call predecessors, (15), 7 states have return successors, (14), 9 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-09 23:18:12,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 121 transitions. [2024-11-09 23:18:12,898 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 121 transitions. Word has length 21 [2024-11-09 23:18:12,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:18:12,899 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 121 transitions. [2024-11-09 23:18:12,899 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 23:18:12,899 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 121 transitions. [2024-11-09 23:18:12,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-09 23:18:12,903 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:18:12,903 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 23:18:12,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 23:18:12,904 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:18:12,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:18:12,905 INFO L85 PathProgramCache]: Analyzing trace with hash 522413521, now seen corresponding path program 1 times [2024-11-09 23:18:12,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:18:12,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755209246] [2024-11-09 23:18:12,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:18:12,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:18:12,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:13,026 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 23:18:13,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:18:13,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755209246] [2024-11-09 23:18:13,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755209246] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:18:13,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:18:13,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:18:13,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124396380] [2024-11-09 23:18:13,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:18:13,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:18:13,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:18:13,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:18:13,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:18:13,031 INFO L87 Difference]: Start difference. First operand 93 states and 121 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 23:18:13,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:18:13,054 INFO L93 Difference]: Finished difference Result 146 states and 190 transitions. [2024-11-09 23:18:13,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:18:13,055 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 23:18:13,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:18:13,056 INFO L225 Difference]: With dead ends: 146 [2024-11-09 23:18:13,056 INFO L226 Difference]: Without dead ends: 83 [2024-11-09 23:18:13,057 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 23:18:13,059 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 16 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 192 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 23:18:13,059 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 192 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:18:13,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-11-09 23:18:13,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2024-11-09 23:18:13,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 63 states have (on average 1.3333333333333333) internal successors, (84), 73 states have internal predecessors, (84), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 7 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 23:18:13,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 108 transitions. [2024-11-09 23:18:13,070 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 108 transitions. Word has length 23 [2024-11-09 23:18:13,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:18:13,070 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 108 transitions. [2024-11-09 23:18:13,071 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 23:18:13,071 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 108 transitions. [2024-11-09 23:18:13,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-09 23:18:13,072 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:18:13,072 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 23:18:13,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 23:18:13,073 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:18:13,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:18:13,074 INFO L85 PathProgramCache]: Analyzing trace with hash 801248319, now seen corresponding path program 1 times [2024-11-09 23:18:13,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:18:13,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110706755] [2024-11-09 23:18:13,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:18:13,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:18:13,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:13,241 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 23:18:13,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:18:13,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110706755] [2024-11-09 23:18:13,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110706755] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:18:13,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:18:13,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 23:18:13,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730619592] [2024-11-09 23:18:13,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:18:13,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:18:13,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:18:13,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:18:13,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:18:13,245 INFO L87 Difference]: Start difference. First operand 83 states and 108 transitions. Second operand has 5 states, 5 states have (on average 5.0) 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 23:18:13,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:18:13,333 INFO L93 Difference]: Finished difference Result 198 states and 261 transitions. [2024-11-09 23:18:13,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:18:13,334 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) 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 23:18:13,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:18:13,337 INFO L225 Difference]: With dead ends: 198 [2024-11-09 23:18:13,337 INFO L226 Difference]: Without dead ends: 122 [2024-11-09 23:18:13,338 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:18:13,341 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 101 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:18:13,342 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 396 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:18:13,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-11-09 23:18:13,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 118. [2024-11-09 23:18:13,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 90 states have (on average 1.3555555555555556) internal successors, (122), 103 states have internal predecessors, (122), 16 states have call successors, (16), 11 states have call predecessors, (16), 11 states have return successors, (17), 10 states have call predecessors, (17), 16 states have call successors, (17) [2024-11-09 23:18:13,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 155 transitions. [2024-11-09 23:18:13,365 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 155 transitions. Word has length 26 [2024-11-09 23:18:13,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:18:13,366 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 155 transitions. [2024-11-09 23:18:13,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) 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 23:18:13,366 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 155 transitions. [2024-11-09 23:18:13,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-09 23:18:13,368 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:18:13,368 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 23:18:13,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 23:18:13,369 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:18:13,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:18:13,370 INFO L85 PathProgramCache]: Analyzing trace with hash -807250214, now seen corresponding path program 1 times [2024-11-09 23:18:13,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:18:13,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987681446] [2024-11-09 23:18:13,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:18:13,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:18:13,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:13,591 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 23:18:13,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:18:13,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987681446] [2024-11-09 23:18:13,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987681446] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:18:13,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:18:13,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:18:13,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868882510] [2024-11-09 23:18:13,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:18:13,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 23:18:13,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:18:13,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 23:18:13,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-09 23:18:13,596 INFO L87 Difference]: Start difference. First operand 118 states and 155 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 23:18:13,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:18:13,940 INFO L93 Difference]: Finished difference Result 431 states and 611 transitions. [2024-11-09 23:18:13,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 23:18:13,941 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 23:18:13,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:18:13,945 INFO L225 Difference]: With dead ends: 431 [2024-11-09 23:18:13,948 INFO L226 Difference]: Without dead ends: 320 [2024-11-09 23:18:13,949 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 23:18:13,950 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 174 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 23:18:13,952 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 659 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 23:18:13,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2024-11-09 23:18:13,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 316. [2024-11-09 23:18:13,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 238 states have (on average 1.3403361344537814) internal successors, (319), 273 states have internal predecessors, (319), 46 states have call successors, (46), 31 states have call predecessors, (46), 31 states have return successors, (65), 28 states have call predecessors, (65), 46 states have call successors, (65) [2024-11-09 23:18:14,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 430 transitions. [2024-11-09 23:18:14,005 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 430 transitions. Word has length 29 [2024-11-09 23:18:14,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:18:14,006 INFO L471 AbstractCegarLoop]: Abstraction has 316 states and 430 transitions. [2024-11-09 23:18:14,006 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 23:18:14,006 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 430 transitions. [2024-11-09 23:18:14,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-09 23:18:14,009 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:18:14,009 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 23:18:14,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 23:18:14,010 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:18:14,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:18:14,010 INFO L85 PathProgramCache]: Analyzing trace with hash -617887337, now seen corresponding path program 1 times [2024-11-09 23:18:14,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:18:14,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750801119] [2024-11-09 23:18:14,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:18:14,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:18:14,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:14,087 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 23:18:14,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:18:14,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750801119] [2024-11-09 23:18:14,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750801119] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:18:14,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:18:14,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 23:18:14,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763568892] [2024-11-09 23:18:14,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:18:14,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:18:14,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:18:14,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:18:14,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:18:14,091 INFO L87 Difference]: Start difference. First operand 316 states and 430 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 23:18:14,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:18:14,161 INFO L93 Difference]: Finished difference Result 708 states and 1007 transitions. [2024-11-09 23:18:14,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:18:14,161 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 23:18:14,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:18:14,169 INFO L225 Difference]: With dead ends: 708 [2024-11-09 23:18:14,169 INFO L226 Difference]: Without dead ends: 399 [2024-11-09 23:18:14,171 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 23:18:14,172 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 60 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 177 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 23:18:14,173 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 177 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:18:14,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2024-11-09 23:18:14,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 393. [2024-11-09 23:18:14,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 302 states have (on average 1.281456953642384) internal successors, (387), 327 states have internal predecessors, (387), 46 states have call successors, (46), 42 states have call predecessors, (46), 44 states have return successors, (91), 44 states have call predecessors, (91), 46 states have call successors, (91) [2024-11-09 23:18:14,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 524 transitions. [2024-11-09 23:18:14,230 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 524 transitions. Word has length 31 [2024-11-09 23:18:14,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:18:14,232 INFO L471 AbstractCegarLoop]: Abstraction has 393 states and 524 transitions. [2024-11-09 23:18:14,232 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 23:18:14,232 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 524 transitions. [2024-11-09 23:18:14,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-09 23:18:14,234 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:18:14,234 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 23:18:14,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 23:18:14,235 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:18:14,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:18:14,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1482474299, now seen corresponding path program 1 times [2024-11-09 23:18:14,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:18:14,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97658065] [2024-11-09 23:18:14,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:18:14,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:18:14,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:14,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-09 23:18:14,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:14,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-09 23:18:14,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:14,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-09 23:18:14,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:14,396 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 23:18:14,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:18:14,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97658065] [2024-11-09 23:18:14,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97658065] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:18:14,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [162294328] [2024-11-09 23:18:14,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:18:14,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:18:14,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:18:14,401 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 23:18:14,403 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 23:18:14,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:14,502 INFO L255 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 23:18:14,511 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:18:14,690 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 23:18:14,692 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 23:18:14,955 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 23:18:14,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [162294328] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 23:18:14,956 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 23:18:14,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 7] total 15 [2024-11-09 23:18:14,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238512100] [2024-11-09 23:18:14,956 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 23:18:14,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-09 23:18:14,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:18:14,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-09 23:18:14,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2024-11-09 23:18:14,958 INFO L87 Difference]: Start difference. First operand 393 states and 524 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 23:18:16,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:18:16,710 INFO L93 Difference]: Finished difference Result 1039 states and 1435 transitions. [2024-11-09 23:18:16,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-11-09 23:18:16,710 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 23:18:16,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:18:16,716 INFO L225 Difference]: With dead ends: 1039 [2024-11-09 23:18:16,717 INFO L226 Difference]: Without dead ends: 762 [2024-11-09 23:18:16,719 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 105 SyntacticMatches, 4 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 816 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=608, Invalid=2472, Unknown=0, NotChecked=0, Total=3080 [2024-11-09 23:18:16,721 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 942 mSDsluCounter, 821 mSDsCounter, 0 mSdLazyCounter, 1428 mSolverCounterSat, 313 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 952 SdHoareTripleChecker+Valid, 955 SdHoareTripleChecker+Invalid, 1741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 313 IncrementalHoareTripleChecker+Valid, 1428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:18:16,723 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [952 Valid, 955 Invalid, 1741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [313 Valid, 1428 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 23:18:16,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2024-11-09 23:18:16,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 712. [2024-11-09 23:18:16,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 543 states have (on average 1.2615101289134438) internal successors, (685), 587 states have internal predecessors, (685), 77 states have call successors, (77), 70 states have call predecessors, (77), 91 states have return successors, (178), 82 states have call predecessors, (178), 77 states have call successors, (178) [2024-11-09 23:18:16,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 940 transitions. [2024-11-09 23:18:16,776 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 940 transitions. Word has length 55 [2024-11-09 23:18:16,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:18:16,776 INFO L471 AbstractCegarLoop]: Abstraction has 712 states and 940 transitions. [2024-11-09 23:18:16,776 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 23:18:16,777 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 940 transitions. [2024-11-09 23:18:16,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-09 23:18:16,780 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:18:16,780 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, 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] [2024-11-09 23:18:16,797 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 23:18:16,981 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 23:18:16,981 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:18:16,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:18:16,982 INFO L85 PathProgramCache]: Analyzing trace with hash 752182456, now seen corresponding path program 1 times [2024-11-09 23:18:16,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:18:16,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084860324] [2024-11-09 23:18:16,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:18:16,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:18:16,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:17,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-09 23:18:17,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:17,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-09 23:18:17,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:17,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 23:18:17,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:17,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-09 23:18:17,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:17,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 23:18:17,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:17,165 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 14 proven. 8 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 23:18:17,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:18:17,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084860324] [2024-11-09 23:18:17,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084860324] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:18:17,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [783304501] [2024-11-09 23:18:17,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:18:17,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:18:17,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:18:17,170 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 23:18:17,173 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 23:18:17,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:17,254 INFO L255 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 23:18:17,257 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:18:17,281 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 23:18:17,282 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 23:18:17,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [783304501] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:18:17,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 23:18:17,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-09 23:18:17,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697087706] [2024-11-09 23:18:17,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:18:17,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:18:17,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:18:17,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:18:17,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-09 23:18:17,284 INFO L87 Difference]: Start difference. First operand 712 states and 940 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 23:18:17,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:18:17,340 INFO L93 Difference]: Finished difference Result 1377 states and 1835 transitions. [2024-11-09 23:18:17,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:18:17,340 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 84 [2024-11-09 23:18:17,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:18:17,344 INFO L225 Difference]: With dead ends: 1377 [2024-11-09 23:18:17,344 INFO L226 Difference]: Without dead ends: 672 [2024-11-09 23:18:17,346 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-09 23:18:17,347 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 71 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:18:17,347 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 211 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:18:17,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2024-11-09 23:18:17,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 669. [2024-11-09 23:18:17,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 669 states, 513 states have (on average 1.2378167641325537) internal successors, (635), 553 states have internal predecessors, (635), 71 states have call successors, (71), 66 states have call predecessors, (71), 84 states have return successors, (123), 77 states have call predecessors, (123), 71 states have call successors, (123) [2024-11-09 23:18:17,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 829 transitions. [2024-11-09 23:18:17,385 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 829 transitions. Word has length 84 [2024-11-09 23:18:17,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:18:17,386 INFO L471 AbstractCegarLoop]: Abstraction has 669 states and 829 transitions. [2024-11-09 23:18:17,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 23:18:17,386 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 829 transitions. [2024-11-09 23:18:17,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-09 23:18:17,388 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:18:17,388 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 23:18:17,405 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 23:18:17,588 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 23:18:17,590 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:18:17,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:18:17,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1396114297, now seen corresponding path program 1 times [2024-11-09 23:18:17,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:18:17,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812581629] [2024-11-09 23:18:17,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:18:17,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:18:17,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:17,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-09 23:18:17,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:17,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-09 23:18:17,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:17,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 23:18:17,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:17,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-09 23:18:17,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:17,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-09 23:18:17,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:17,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 23:18:17,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:17,744 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 23:18:17,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:18:17,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812581629] [2024-11-09 23:18:17,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812581629] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:18:17,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1022716448] [2024-11-09 23:18:17,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:18:17,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:18:17,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:18:17,747 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 23:18:17,748 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 23:18:17,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:17,829 INFO L255 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 23:18:17,831 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:18:17,839 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 23:18:17,840 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 23:18:17,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1022716448] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:18:17,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 23:18:17,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 7 [2024-11-09 23:18:17,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754910520] [2024-11-09 23:18:17,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:18:17,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:18:17,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:18:17,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:18:17,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:18:17,842 INFO L87 Difference]: Start difference. First operand 669 states and 829 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 23:18:17,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:18:17,883 INFO L93 Difference]: Finished difference Result 1343 states and 1692 transitions. [2024-11-09 23:18:17,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:18:17,883 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) Word has length 88 [2024-11-09 23:18:17,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:18:17,887 INFO L225 Difference]: With dead ends: 1343 [2024-11-09 23:18:17,888 INFO L226 Difference]: Without dead ends: 681 [2024-11-09 23:18:17,889 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 102 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 23:18:17,890 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 0 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 414 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 23:18:17,890 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 414 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:18:17,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 681 states. [2024-11-09 23:18:17,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 681 to 681. [2024-11-09 23:18:17,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 681 states, 525 states have (on average 1.2323809523809524) internal successors, (647), 565 states have internal predecessors, (647), 71 states have call successors, (71), 66 states have call predecessors, (71), 84 states have return successors, (123), 77 states have call predecessors, (123), 71 states have call successors, (123) [2024-11-09 23:18:17,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 681 states and 841 transitions. [2024-11-09 23:18:17,926 INFO L78 Accepts]: Start accepts. Automaton has 681 states and 841 transitions. Word has length 88 [2024-11-09 23:18:17,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:18:17,926 INFO L471 AbstractCegarLoop]: Abstraction has 681 states and 841 transitions. [2024-11-09 23:18:17,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 23:18:17,927 INFO L276 IsEmpty]: Start isEmpty. Operand 681 states and 841 transitions. [2024-11-09 23:18:17,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-09 23:18:17,928 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:18:17,928 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:18:17,945 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 23:18:18,129 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 23:18:18,129 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:18:18,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:18:18,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1391107393, now seen corresponding path program 1 times [2024-11-09 23:18:18,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:18:18,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060400263] [2024-11-09 23:18:18,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:18:18,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:18:18,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:18,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-09 23:18:18,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:18,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-09 23:18:18,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:18,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 23:18:18,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:18,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-09 23:18:18,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:18,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-09 23:18:18,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:18,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 23:18:18,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:18,237 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 23:18:18,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:18:18,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060400263] [2024-11-09 23:18:18,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060400263] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:18:18,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:18:18,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 23:18:18,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406514144] [2024-11-09 23:18:18,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:18:18,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 23:18:18,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:18:18,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 23:18:18,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 23:18:18,239 INFO L87 Difference]: Start difference. First operand 681 states and 841 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 4 states have internal predecessors, (74), 4 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-09 23:18:18,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:18:18,498 INFO L93 Difference]: Finished difference Result 1371 states and 1689 transitions. [2024-11-09 23:18:18,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 23:18:18,498 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 4 states have internal predecessors, (74), 4 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) Word has length 91 [2024-11-09 23:18:18,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:18:18,503 INFO L225 Difference]: With dead ends: 1371 [2024-11-09 23:18:18,503 INFO L226 Difference]: Without dead ends: 697 [2024-11-09 23:18:18,505 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-09 23:18:18,507 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 207 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 23:18:18,507 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 298 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 23:18:18,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2024-11-09 23:18:18,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 681. [2024-11-09 23:18:18,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 681 states, 525 states have (on average 1.2228571428571429) internal successors, (642), 565 states have internal predecessors, (642), 71 states have call successors, (71), 66 states have call predecessors, (71), 84 states have return successors, (109), 77 states have call predecessors, (109), 71 states have call successors, (109) [2024-11-09 23:18:18,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 681 states and 822 transitions. [2024-11-09 23:18:18,560 INFO L78 Accepts]: Start accepts. Automaton has 681 states and 822 transitions. Word has length 91 [2024-11-09 23:18:18,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:18:18,561 INFO L471 AbstractCegarLoop]: Abstraction has 681 states and 822 transitions. [2024-11-09 23:18:18,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 4 states have internal predecessors, (74), 4 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-09 23:18:18,561 INFO L276 IsEmpty]: Start isEmpty. Operand 681 states and 822 transitions. [2024-11-09 23:18:18,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-09 23:18:18,565 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:18:18,565 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 23:18:18,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 23:18:18,566 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:18:18,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:18:18,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1295202330, now seen corresponding path program 1 times [2024-11-09 23:18:18,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:18:18,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910216889] [2024-11-09 23:18:18,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:18:18,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:18:18,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:18,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-09 23:18:18,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:18,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-09 23:18:18,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:18,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 23:18:18,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:18,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-09 23:18:18,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:18,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-09 23:18:18,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:18,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 23:18:18,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:18,743 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 23:18:18,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:18:18,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910216889] [2024-11-09 23:18:18,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910216889] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:18:18,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [982890428] [2024-11-09 23:18:18,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:18:18,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:18:18,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:18:18,746 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 23:18:18,747 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 23:18:18,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:18,827 INFO L255 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 23:18:18,830 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:18:18,854 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 23:18:18,856 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 23:18:18,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [982890428] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:18:18,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 23:18:18,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2024-11-09 23:18:18,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307699674] [2024-11-09 23:18:18,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:18:18,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 23:18:18,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:18:18,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 23:18:18,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-09 23:18:18,858 INFO L87 Difference]: Start difference. First operand 681 states and 822 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 23:18:18,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:18:18,894 INFO L93 Difference]: Finished difference Result 1284 states and 1572 transitions. [2024-11-09 23:18:18,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 23:18:18,894 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) Word has length 88 [2024-11-09 23:18:18,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:18:18,899 INFO L225 Difference]: With dead ends: 1284 [2024-11-09 23:18:18,899 INFO L226 Difference]: Without dead ends: 610 [2024-11-09 23:18:18,901 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-09 23:18:18,901 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 0 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 312 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 23:18:18,902 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 312 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:18:18,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2024-11-09 23:18:18,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 610. [2024-11-09 23:18:18,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 610 states, 469 states have (on average 1.2174840085287846) internal successors, (571), 504 states have internal predecessors, (571), 68 states have call successors, (68), 63 states have call predecessors, (68), 72 states have return successors, (97), 68 states have call predecessors, (97), 68 states have call successors, (97) [2024-11-09 23:18:18,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 736 transitions. [2024-11-09 23:18:18,935 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 736 transitions. Word has length 88 [2024-11-09 23:18:18,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:18:18,936 INFO L471 AbstractCegarLoop]: Abstraction has 610 states and 736 transitions. [2024-11-09 23:18:18,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 23:18:18,936 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 736 transitions. [2024-11-09 23:18:18,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-09 23:18:18,937 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:18:18,937 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:18:18,956 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 23:18:19,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:18:19,138 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:18:19,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:18:19,139 INFO L85 PathProgramCache]: Analyzing trace with hash 610114822, now seen corresponding path program 1 times [2024-11-09 23:18:19,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:18:19,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032846216] [2024-11-09 23:18:19,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:18:19,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:18:19,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:19,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-09 23:18:19,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:19,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-09 23:18:19,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:19,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-09 23:18:19,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:19,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 23:18:19,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:19,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-09 23:18:19,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:19,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-09 23:18:19,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:19,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 23:18:19,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:19,330 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 12 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 23:18:19,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:18:19,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032846216] [2024-11-09 23:18:19,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032846216] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:18:19,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [46680992] [2024-11-09 23:18:19,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:18:19,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:18:19,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:18:19,334 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 23:18:19,335 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 23:18:19,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:19,432 INFO L255 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 23:18:19,439 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:18:19,529 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:18:19,529 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 23:18:19,661 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 13 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 23:18:19,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [46680992] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 23:18:19,662 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 23:18:19,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6] total 9 [2024-11-09 23:18:19,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856977621] [2024-11-09 23:18:19,662 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 23:18:19,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 23:18:19,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:18:19,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 23:18:19,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-09 23:18:19,664 INFO L87 Difference]: Start difference. First operand 610 states and 736 transitions. Second operand has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 6 states have internal predecessors, (91), 3 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-09 23:18:20,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:18:20,214 INFO L93 Difference]: Finished difference Result 1129 states and 1374 transitions. [2024-11-09 23:18:20,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-09 23:18:20,215 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 6 states have internal predecessors, (91), 3 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 92 [2024-11-09 23:18:20,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:18:20,218 INFO L225 Difference]: With dead ends: 1129 [2024-11-09 23:18:20,219 INFO L226 Difference]: Without dead ends: 603 [2024-11-09 23:18:20,220 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 196 SyntacticMatches, 8 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=158, Invalid=442, Unknown=0, NotChecked=0, Total=600 [2024-11-09 23:18:20,221 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 249 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 23:18:20,221 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 549 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 520 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 23:18:20,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2024-11-09 23:18:20,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 552. [2024-11-09 23:18:20,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 421 states have (on average 1.1971496437054632) internal successors, (504), 454 states have internal predecessors, (504), 63 states have call successors, (63), 58 states have call predecessors, (63), 67 states have return successors, (92), 60 states have call predecessors, (92), 63 states have call successors, (92) [2024-11-09 23:18:20,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 659 transitions. [2024-11-09 23:18:20,251 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 659 transitions. Word has length 92 [2024-11-09 23:18:20,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:18:20,252 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 659 transitions. [2024-11-09 23:18:20,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 6 states have internal predecessors, (91), 3 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-09 23:18:20,252 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 659 transitions. [2024-11-09 23:18:20,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-09 23:18:20,254 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:18:20,254 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 23:18:20,275 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 23:18:20,458 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,SelfDestructingSolverStorable10 [2024-11-09 23:18:20,459 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:18:20,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:18:20,459 INFO L85 PathProgramCache]: Analyzing trace with hash -705641351, now seen corresponding path program 2 times [2024-11-09 23:18:20,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:18:20,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005178716] [2024-11-09 23:18:20,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:18:20,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:18:20,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:20,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-09 23:18:20,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:20,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-09 23:18:20,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:20,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-09 23:18:20,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:20,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 23:18:20,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:20,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-09 23:18:20,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:20,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 23:18:20,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:20,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-09 23:18:20,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:20,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 23:18:20,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:20,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-09 23:18:20,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:20,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-09 23:18:20,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:20,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 23:18:20,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:20,850 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 52 proven. 23 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 23:18:20,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:18:20,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005178716] [2024-11-09 23:18:20,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005178716] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:18:20,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1835636661] [2024-11-09 23:18:20,851 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 23:18:20,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:18:20,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:18:20,853 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 23:18:20,855 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 23:18:20,954 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 23:18:20,954 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 23:18:20,956 INFO L255 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 23:18:20,960 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:18:21,032 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-09 23:18:21,032 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 23:18:21,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1835636661] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:18:21,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 23:18:21,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 12 [2024-11-09 23:18:21,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173766988] [2024-11-09 23:18:21,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:18:21,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 23:18:21,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:18:21,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 23:18:21,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-09 23:18:21,034 INFO L87 Difference]: Start difference. First operand 552 states and 659 transitions. Second operand has 6 states, 6 states have (on average 17.0) internal successors, (102), 6 states have internal predecessors, (102), 3 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-09 23:18:21,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:18:21,262 INFO L93 Difference]: Finished difference Result 1438 states and 1773 transitions. [2024-11-09 23:18:21,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 23:18:21,263 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.0) internal successors, (102), 6 states have internal predecessors, (102), 3 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 135 [2024-11-09 23:18:21,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:18:21,268 INFO L225 Difference]: With dead ends: 1438 [2024-11-09 23:18:21,268 INFO L226 Difference]: Without dead ends: 966 [2024-11-09 23:18:21,270 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 154 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2024-11-09 23:18:21,270 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 150 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:18:21,270 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 721 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:18:21,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 966 states. [2024-11-09 23:18:21,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 966 to 881. [2024-11-09 23:18:21,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 881 states, 672 states have (on average 1.1904761904761905) internal successors, (800), 719 states have internal predecessors, (800), 102 states have call successors, (102), 94 states have call predecessors, (102), 106 states have return successors, (150), 97 states have call predecessors, (150), 102 states have call successors, (150) [2024-11-09 23:18:21,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 881 states to 881 states and 1052 transitions. [2024-11-09 23:18:21,346 INFO L78 Accepts]: Start accepts. Automaton has 881 states and 1052 transitions. Word has length 135 [2024-11-09 23:18:21,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:18:21,346 INFO L471 AbstractCegarLoop]: Abstraction has 881 states and 1052 transitions. [2024-11-09 23:18:21,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.0) internal successors, (102), 6 states have internal predecessors, (102), 3 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-09 23:18:21,346 INFO L276 IsEmpty]: Start isEmpty. Operand 881 states and 1052 transitions. [2024-11-09 23:18:21,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-09 23:18:21,348 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:18:21,349 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:18:21,367 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-09 23:18:21,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:18:21,553 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:18:21,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:18:21,554 INFO L85 PathProgramCache]: Analyzing trace with hash 598752378, now seen corresponding path program 1 times [2024-11-09 23:18:21,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:18:21,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109561485] [2024-11-09 23:18:21,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:18:21,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:18:21,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:21,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-09 23:18:21,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:21,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-09 23:18:21,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:21,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-09 23:18:21,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:21,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 23:18:21,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:21,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-09 23:18:21,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:21,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 23:18:21,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:21,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-09 23:18:21,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:21,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 23:18:21,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:21,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-09 23:18:21,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:21,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-09 23:18:21,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:21,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 23:18:21,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:21,736 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 45 proven. 6 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-09 23:18:21,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:18:21,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109561485] [2024-11-09 23:18:21,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109561485] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:18:21,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [664962415] [2024-11-09 23:18:21,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:18:21,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:18:21,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:18:21,739 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 23:18:21,740 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 23:18:21,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:18:21,841 INFO L255 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 23:18:21,844 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:18:21,854 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-09 23:18:21,855 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 23:18:21,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [664962415] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:18:21,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 23:18:21,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 10 [2024-11-09 23:18:21,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086844233] [2024-11-09 23:18:21,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:18:21,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:18:21,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:18:21,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:18:21,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-09 23:18:21,857 INFO L87 Difference]: Start difference. First operand 881 states and 1052 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-09 23:18:21,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:18:21,906 INFO L93 Difference]: Finished difference Result 1229 states and 1461 transitions. [2024-11-09 23:18:21,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:18:21,907 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 135 [2024-11-09 23:18:21,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:18:21,909 INFO L225 Difference]: With dead ends: 1229 [2024-11-09 23:18:21,909 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 23:18:21,911 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-09 23:18:21,912 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 0 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 392 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 23:18:21,912 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 392 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:18:21,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 23:18:21,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 23:18:21,913 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 23:18:21,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 23:18:21,914 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 135 [2024-11-09 23:18:21,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:18:21,914 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 23:18:21,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-09 23:18:21,915 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 23:18:21,915 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 23:18:21,917 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 23:18:21,936 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-09 23:18:22,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:18:22,122 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:18:22,124 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 23:18:24,070 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 23:18:24,085 WARN L156 FloydHoareUtils]: Requires clause for deactivatePump contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= |old(~pumpRunning~0)| 0)) (<= 1 ~waterLevel~0) (not (= 0 ~systemActive~0))) Eliminated clause: (and (not (= ~pumpRunning~0 0)) (<= 1 ~waterLevel~0) (not (= 0 ~systemActive~0))) [2024-11-09 23:18:24,105 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)|)) (<= 2 |old(~waterLevel~0)|)) (or (= ~pumpRunning~0 0) (not (= 0 ~systemActive~0))) (= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (let ((.cse0 (= ~pumpRunning~0 0))) (and (or (< 1 ~waterLevel~0) (and .cse0 (= ~waterLevel~0 1))) (or .cse0 (not (= 0 ~systemActive~0))))) [2024-11-09 23:18:24,114 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 23:18:24,118 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 23:18:24,129 WARN L156 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__lowWaterSensor 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 23:18:24,131 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 11:18:24 BoogieIcfgContainer [2024-11-09 23:18:24,131 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 23:18:24,131 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 23:18:24,131 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 23:18:24,132 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 23:18:24,133 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 11:18:12" (3/4) ... [2024-11-09 23:18:24,135 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-09 23:18:24,140 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-11-09 23:18:24,140 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-09 23:18:24,140 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-09 23:18:24,140 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-09 23:18:24,140 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-09 23:18:24,142 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-11-09 23:18:24,142 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-09 23:18:24,142 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__lowWaterSensor [2024-11-09 23:18:24,152 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 43 nodes and edges [2024-11-09 23:18:24,153 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-11-09 23:18:24,153 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-09 23:18:24,154 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 23:18:24,154 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 23:18:24,273 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 23:18:24,274 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-09 23:18:24,274 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 23:18:24,274 INFO L158 Benchmark]: Toolchain (without parser) took 13022.62ms. Allocated memory was 199.2MB in the beginning and 287.3MB in the end (delta: 88.1MB). Free memory was 146.5MB in the beginning and 110.7MB in the end (delta: 35.7MB). Peak memory consumption was 123.0MB. Max. memory is 16.1GB. [2024-11-09 23:18:24,274 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 100.7MB. Free memory was 63.7MB in the beginning and 63.7MB in the end (delta: 77.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 23:18:24,275 INFO L158 Benchmark]: CACSL2BoogieTranslator took 563.78ms. Allocated memory is still 199.2MB. Free memory was 145.8MB in the beginning and 124.0MB in the end (delta: 21.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-09 23:18:24,275 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.49ms. Allocated memory is still 199.2MB. Free memory was 124.0MB in the beginning and 122.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 23:18:24,275 INFO L158 Benchmark]: Boogie Preprocessor took 63.90ms. Allocated memory is still 199.2MB. Free memory was 122.0MB in the beginning and 119.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 23:18:24,275 INFO L158 Benchmark]: IcfgBuilder took 584.97ms. Allocated memory is still 199.2MB. Free memory was 119.3MB in the beginning and 148.6MB in the end (delta: -29.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-09 23:18:24,275 INFO L158 Benchmark]: TraceAbstraction took 11601.12ms. Allocated memory was 199.2MB in the beginning and 287.3MB in the end (delta: 88.1MB). Free memory was 147.5MB in the beginning and 118.1MB in the end (delta: 29.4MB). Peak memory consumption was 155.7MB. Max. memory is 16.1GB. [2024-11-09 23:18:24,276 INFO L158 Benchmark]: Witness Printer took 142.43ms. Allocated memory is still 287.3MB. Free memory was 118.1MB in the beginning and 110.7MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-09 23:18:24,281 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 100.7MB. Free memory was 63.7MB in the beginning and 63.7MB in the end (delta: 77.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 563.78ms. Allocated memory is still 199.2MB. Free memory was 145.8MB in the beginning and 124.0MB in the end (delta: 21.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.49ms. Allocated memory is still 199.2MB. Free memory was 124.0MB in the beginning and 122.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.90ms. Allocated memory is still 199.2MB. Free memory was 122.0MB in the beginning and 119.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 584.97ms. Allocated memory is still 199.2MB. Free memory was 119.3MB in the beginning and 148.6MB in the end (delta: -29.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 11601.12ms. Allocated memory was 199.2MB in the beginning and 287.3MB in the end (delta: 88.1MB). Free memory was 147.5MB in the beginning and 118.1MB in the end (delta: 29.4MB). Peak memory consumption was 155.7MB. Max. memory is 16.1GB. * Witness Printer took 142.43ms. Allocated memory is still 287.3MB. Free memory was 118.1MB in the beginning and 110.7MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. 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,"MinePump.i","") [49] - GenericResultAtLocation [Line: 308]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [308] - GenericResultAtLocation [Line: 674]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [674] - GenericResultAtLocation [Line: 746]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [746] - GenericResultAtLocation [Line: 774]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [774] - GenericResultAtLocation [Line: 873]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [873] - GenericResultAtLocation [Line: 882]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [882] - GenericResultAtLocation [Line: 985]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [985] * 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: 878]: 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 9 procedures, 104 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.5s, OverallIterations: 13, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1995 SdHoareTripleChecker+Valid, 2.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1970 mSDsluCounter, 5407 SdHoareTripleChecker+Invalid, 1.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3880 mSDsCounter, 443 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2581 IncrementalHoareTripleChecker+Invalid, 3024 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 443 mSolverCounterUnsat, 1527 mSDtfsCounter, 2581 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1096 GetRequests, 936 SyntacticMatches, 15 SemanticMatches, 145 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1026 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=881occurred in iteration=12, InterpolantAutomatonStates: 128, 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, 13 MinimizatonAttempts, 219 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 1575 NumberOfCodeBlocks, 1575 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 1700 ConstructedInterpolants, 0 QuantifiedInterpolants, 2860 SizeOfPredicates, 3 NumberOfNonLiveVariables, 2238 ConjunctsInSsa, 50 ConjunctsInUnsatCore, 22 InterpolantComputations, 11 PerfectInterpolantSequences, 620/696 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: 786]: Location Invariant Derived location invariant: null - InvariantResult [Line: 688]: Location Invariant Derived location invariant: null - ProcedureContractResult [Line: 183]: Procedure Contract for deactivatePump Derived contract for procedure deactivatePump. Requires: (((pumpRunning != 0) && (1 <= waterLevel)) && (0 != systemActive)) Ensures: (((((\old(pumpRunning) != 0) && (pumpRunning == 0)) && (1 <= waterLevel)) && (0 != systemActive)) && (((((systemActive == \old(systemActive)) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical)))) - ProcedureContractResult [Line: 90]: 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)) && ((((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical)))) - ProcedureContractResult [Line: 909]: 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))) && (((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (waterLevel == \old(waterLevel)))) - ProcedureContractResult [Line: 776]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: (0 && ((((systemActive == \old(systemActive)) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (methaneLevelCritical == \old(methaneLevelCritical)))) - ProcedureContractResult [Line: 66]: Procedure Contract for timeShift Derived contract for procedure timeShift. Requires: (((1 < waterLevel) || ((pumpRunning == 0) && (waterLevel == 1))) && ((pumpRunning == 0) || (0 != systemActive))) Ensures: (((((((pumpRunning == 0) || (\old(waterLevel) != 1)) && (((\old(pumpRunning) == 0) && (1 <= \old(waterLevel))) || ((2 <= \old(waterLevel)) && (0 != systemActive)))) && ((pumpRunning == 0) || (0 != systemActive))) && ((\old(pumpRunning) == 0) || ((pumpRunning == 0) && (1 <= waterLevel)))) && ((\old(pumpRunning) != 0) || (\old(waterLevel) == waterLevel))) && ((((systemActive == \old(systemActive)) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (methaneLevelCritical == \old(methaneLevelCritical)))) - ProcedureContractResult [Line: 98]: 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)))) && (((((systemActive == \old(systemActive)) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical)))) - ProcedureContractResult [Line: 897]: Procedure Contract for waterRise Derived contract for procedure waterRise. Requires: (((2 <= waterLevel) && (0 != systemActive)) || ((pumpRunning == 0) && (1 <= waterLevel))) Ensures: (((((((2 <= waterLevel) && (\old(waterLevel) <= 1)) || (\old(waterLevel) == waterLevel)) && (((1 <= \old(waterLevel)) && (0 != systemActive)) || ((pumpRunning == 0) && (1 <= \old(waterLevel))))) && ((pumpRunning == 0) || (\old(waterLevel) == waterLevel))) && ((\old(waterLevel) != 1) || (1 < waterLevel))) && (((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (methaneLevelCritical == \old(methaneLevelCritical)))) - ProcedureContractResult [Line: 124]: Procedure Contract for processEnvironment__wrappee__lowWaterSensor Derived contract for procedure processEnvironment__wrappee__lowWaterSensor. Requires: ((1 <= waterLevel) && (0 != systemActive)) Ensures: ((((((pumpRunning == 0) || (\old(pumpRunning) == 0)) && ((waterLevel != 1) || (pumpRunning == 0))) && (1 <= waterLevel)) && (0 != systemActive)) && (((((systemActive == \old(systemActive)) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical)))) RESULT: Ultimate proved your program to be correct! [2024-11-09 23:18:24,313 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