./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product63.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product63.cil.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 bff509ff7af2b9788fd6216f7196709183d48c973cf9a066c9793f96467b2abf --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 02:58:57,665 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 02:58:57,734 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 02:58:57,739 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 02:58:57,739 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 02:58:57,769 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 02:58:57,771 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 02:58:57,771 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 02:58:57,772 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 02:58:57,778 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 02:58:57,778 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 02:58:57,779 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 02:58:57,779 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 02:58:57,780 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 02:58:57,780 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 02:58:57,780 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 02:58:57,780 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 02:58:57,781 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 02:58:57,781 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 02:58:57,781 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 02:58:57,781 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 02:58:57,783 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 02:58:57,783 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 02:58:57,784 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 02:58:57,784 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 02:58:57,784 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 02:58:57,784 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 02:58:57,785 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 02:58:57,785 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 02:58:57,785 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 02:58:57,786 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 02:58:57,786 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 02:58:57,787 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 02:58:57,787 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 02:58:57,788 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 02:58:57,788 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 02:58:57,788 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 02:58:57,788 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 02:58:57,789 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 02:58:57,789 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 02:58:57,789 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 02:58:57,790 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 02:58:57,790 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bff509ff7af2b9788fd6216f7196709183d48c973cf9a066c9793f96467b2abf [2024-10-11 02:58:58,084 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 02:58:58,108 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 02:58:58,111 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 02:58:58,112 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 02:58:58,113 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 02:58:58,114 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product63.cil.c [2024-10-11 02:58:59,681 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 02:58:59,897 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 02:58:59,897 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product63.cil.c [2024-10-11 02:58:59,911 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/043c78147/60ee5fad48e14429bf1146350063963b/FLAG729d31a5a [2024-10-11 02:58:59,927 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/043c78147/60ee5fad48e14429bf1146350063963b [2024-10-11 02:58:59,930 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 02:58:59,931 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 02:58:59,932 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 02:58:59,933 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 02:58:59,938 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 02:58:59,939 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:58:59" (1/1) ... [2024-10-11 02:58:59,940 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@448f9b47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:58:59, skipping insertion in model container [2024-10-11 02:58:59,940 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:58:59" (1/1) ... [2024-10-11 02:58:59,992 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 02:59:00,228 WARN L248 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_spec2_product63.cil.c[2985,2998] [2024-10-11 02:59:00,357 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 02:59:00,384 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 02:59:00,407 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [49] [2024-10-11 02:59:00,409 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [155] [2024-10-11 02:59:00,410 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [164] [2024-10-11 02:59:00,410 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [205] [2024-10-11 02:59:00,411 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [313] [2024-10-11 02:59:00,411 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [381] [2024-10-11 02:59:00,411 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [638] [2024-10-11 02:59:00,411 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [673] [2024-10-11 02:59:00,422 WARN L248 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_spec2_product63.cil.c[2985,2998] [2024-10-11 02:59:00,488 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 02:59:00,516 INFO L204 MainTranslator]: Completed translation [2024-10-11 02:59:00,516 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:59:00 WrapperNode [2024-10-11 02:59:00,517 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 02:59:00,518 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 02:59:00,518 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 02:59:00,518 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 02:59:00,526 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:59:00" (1/1) ... [2024-10-11 02:59:00,542 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:59:00" (1/1) ... [2024-10-11 02:59:00,572 INFO L138 Inliner]: procedures = 59, calls = 107, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 228 [2024-10-11 02:59:00,573 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 02:59:00,574 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 02:59:00,574 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 02:59:00,574 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 02:59:00,583 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:59:00" (1/1) ... [2024-10-11 02:59:00,584 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:59:00" (1/1) ... [2024-10-11 02:59:00,586 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:59:00" (1/1) ... [2024-10-11 02:59:00,607 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]. [2024-10-11 02:59:00,608 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:59:00" (1/1) ... [2024-10-11 02:59:00,608 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:59:00" (1/1) ... [2024-10-11 02:59:00,613 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:59:00" (1/1) ... [2024-10-11 02:59:00,618 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:59:00" (1/1) ... [2024-10-11 02:59:00,620 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:59:00" (1/1) ... [2024-10-11 02:59:00,621 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:59:00" (1/1) ... [2024-10-11 02:59:00,624 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 02:59:00,625 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 02:59:00,626 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 02:59:00,626 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 02:59:00,627 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:59:00" (1/1) ... [2024-10-11 02:59:00,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 02:59:00,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:59:00,668 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 02:59:00,675 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 02:59:00,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 02:59:00,727 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-10-11 02:59:00,728 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-10-11 02:59:00,728 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2024-10-11 02:59:00,728 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2024-10-11 02:59:00,728 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-10-11 02:59:00,728 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-10-11 02:59:00,728 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-10-11 02:59:00,729 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-10-11 02:59:00,729 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-10-11 02:59:00,729 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-10-11 02:59:00,730 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-10-11 02:59:00,730 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-10-11 02:59:00,730 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2024-10-11 02:59:00,730 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2024-10-11 02:59:00,730 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2024-10-11 02:59:00,730 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2024-10-11 02:59:00,731 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-10-11 02:59:00,731 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-10-11 02:59:00,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 02:59:00,732 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-10-11 02:59:00,733 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-10-11 02:59:00,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 02:59:00,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 02:59:00,845 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 02:59:00,848 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 02:59:01,200 INFO L? ?]: Removed 50 outVars from TransFormulas that were not future-live. [2024-10-11 02:59:01,201 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 02:59:01,279 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 02:59:01,280 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-11 02:59:01,280 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:59:01 BoogieIcfgContainer [2024-10-11 02:59:01,280 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 02:59:01,283 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 02:59:01,283 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 02:59:01,287 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 02:59:01,287 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:58:59" (1/3) ... [2024-10-11 02:59:01,288 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54f68c51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:59:01, skipping insertion in model container [2024-10-11 02:59:01,289 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:59:00" (2/3) ... [2024-10-11 02:59:01,290 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54f68c51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:59:01, skipping insertion in model container [2024-10-11 02:59:01,290 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:59:01" (3/3) ... [2024-10-11 02:59:01,292 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product63.cil.c [2024-10-11 02:59:01,310 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 02:59:01,310 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 02:59:01,370 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 02:59:01,377 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;@68ee44e7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 02:59:01,377 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 02:59:01,382 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 61 states have (on average 1.5081967213114753) internal successors, (92), 72 states have internal predecessors, (92), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (19), 14 states have call predecessors, (19), 19 states have call successors, (19) [2024-10-11 02:59:01,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-10-11 02:59:01,389 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:59:01,390 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:59:01,390 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:59:01,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:59:01,395 INFO L85 PathProgramCache]: Analyzing trace with hash -80666079, now seen corresponding path program 1 times [2024-10-11 02:59:01,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:59:01,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962010806] [2024-10-11 02:59:01,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:59:01,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:59:01,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:01,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:59:01,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:01,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 02:59:01,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:59:01,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962010806] [2024-10-11 02:59:01,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962010806] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:59:01,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:59:01,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 02:59:01,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121249491] [2024-10-11 02:59:01,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:59:01,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 02:59:01,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:59:01,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 02:59:01,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 02:59:01,629 INFO L87 Difference]: Start difference. First operand has 92 states, 61 states have (on average 1.5081967213114753) internal successors, (92), 72 states have internal predecessors, (92), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (19), 14 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 02:59:01,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:59:01,716 INFO L93 Difference]: Finished difference Result 182 states and 261 transitions. [2024-10-11 02:59:01,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 02:59:01,722 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2024-10-11 02:59:01,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:59:01,737 INFO L225 Difference]: With dead ends: 182 [2024-10-11 02:59:01,737 INFO L226 Difference]: Without dead ends: 87 [2024-10-11 02:59:01,741 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 02:59:01,748 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 02:59:01,749 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 109 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 02:59:01,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-10-11 02:59:01,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2024-10-11 02:59:01,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 58 states have (on average 1.4137931034482758) internal successors, (82), 68 states have internal predecessors, (82), 19 states have call successors, (19), 10 states have call predecessors, (19), 9 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-11 02:59:01,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 119 transitions. [2024-10-11 02:59:01,798 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 119 transitions. Word has length 17 [2024-10-11 02:59:01,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:59:01,799 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 119 transitions. [2024-10-11 02:59:01,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 02:59:01,799 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 119 transitions. [2024-10-11 02:59:01,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-10-11 02:59:01,801 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:59:01,802 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:59:01,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 02:59:01,802 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:59:01,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:59:01,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1437964939, now seen corresponding path program 1 times [2024-10-11 02:59:01,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:59:01,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115745061] [2024-10-11 02:59:01,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:59:01,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:59:01,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:01,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 02:59:01,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:01,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 02:59:01,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:59:01,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115745061] [2024-10-11 02:59:01,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115745061] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:59:01,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:59:01,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 02:59:01,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014062236] [2024-10-11 02:59:01,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:59:01,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 02:59:01,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:59:01,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 02:59:01,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 02:59:01,911 INFO L87 Difference]: Start difference. First operand 87 states and 119 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 02:59:01,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:59:01,965 INFO L93 Difference]: Finished difference Result 144 states and 196 transitions. [2024-10-11 02:59:01,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 02:59:01,967 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2024-10-11 02:59:01,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:59:01,970 INFO L225 Difference]: With dead ends: 144 [2024-10-11 02:59:01,970 INFO L226 Difference]: Without dead ends: 79 [2024-10-11 02:59:01,971 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 02:59:01,972 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 14 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 02:59:01,973 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 173 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 02:59:01,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-10-11 02:59:01,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2024-10-11 02:59:01,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 53 states have (on average 1.4339622641509433) internal successors, (76), 63 states have internal predecessors, (76), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-11 02:59:01,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 108 transitions. [2024-10-11 02:59:01,988 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 108 transitions. Word has length 18 [2024-10-11 02:59:01,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:59:01,988 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 108 transitions. [2024-10-11 02:59:01,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 02:59:01,989 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 108 transitions. [2024-10-11 02:59:01,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-10-11 02:59:01,992 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:59:01,993 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] [2024-10-11 02:59:01,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 02:59:01,993 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:59:01,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:59:01,994 INFO L85 PathProgramCache]: Analyzing trace with hash 139538423, now seen corresponding path program 1 times [2024-10-11 02:59:01,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:59:01,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941356650] [2024-10-11 02:59:01,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:59:01,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:59:02,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:02,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:59:02,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:02,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 02:59:02,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:59:02,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941356650] [2024-10-11 02:59:02,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941356650] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:59:02,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:59:02,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 02:59:02,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778184843] [2024-10-11 02:59:02,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:59:02,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 02:59:02,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:59:02,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 02:59:02,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 02:59:02,228 INFO L87 Difference]: Start difference. First operand 79 states and 108 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 02:59:02,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:59:02,341 INFO L93 Difference]: Finished difference Result 233 states and 321 transitions. [2024-10-11 02:59:02,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 02:59:02,342 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2024-10-11 02:59:02,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:59:02,345 INFO L225 Difference]: With dead ends: 233 [2024-10-11 02:59:02,345 INFO L226 Difference]: Without dead ends: 156 [2024-10-11 02:59:02,347 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 02:59:02,349 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 95 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 02:59:02,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 203 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 02:59:02,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2024-10-11 02:59:02,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 153. [2024-10-11 02:59:02,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 102 states have (on average 1.4411764705882353) internal successors, (147), 121 states have internal predecessors, (147), 32 states have call successors, (32), 18 states have call predecessors, (32), 18 states have return successors, (32), 21 states have call predecessors, (32), 32 states have call successors, (32) [2024-10-11 02:59:02,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 211 transitions. [2024-10-11 02:59:02,387 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 211 transitions. Word has length 21 [2024-10-11 02:59:02,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:59:02,387 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 211 transitions. [2024-10-11 02:59:02,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 02:59:02,388 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 211 transitions. [2024-10-11 02:59:02,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-10-11 02:59:02,389 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:59:02,389 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] [2024-10-11 02:59:02,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 02:59:02,390 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:59:02,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:59:02,390 INFO L85 PathProgramCache]: Analyzing trace with hash 1743862495, now seen corresponding path program 1 times [2024-10-11 02:59:02,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:59:02,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716976398] [2024-10-11 02:59:02,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:59:02,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:59:02,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:02,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-11 02:59:02,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:02,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 02:59:02,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:59:02,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716976398] [2024-10-11 02:59:02,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716976398] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:59:02,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:59:02,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 02:59:02,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129390700] [2024-10-11 02:59:02,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:59:02,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 02:59:02,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:59:02,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 02:59:02,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 02:59:02,528 INFO L87 Difference]: Start difference. First operand 153 states and 211 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 02:59:02,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:59:02,634 INFO L93 Difference]: Finished difference Result 396 states and 555 transitions. [2024-10-11 02:59:02,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 02:59:02,636 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2024-10-11 02:59:02,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:59:02,639 INFO L225 Difference]: With dead ends: 396 [2024-10-11 02:59:02,639 INFO L226 Difference]: Without dead ends: 245 [2024-10-11 02:59:02,644 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 02:59:02,646 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 60 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 02:59:02,649 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 248 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 02:59:02,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2024-10-11 02:59:02,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 244. [2024-10-11 02:59:02,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 167 states have (on average 1.3592814371257484) internal successors, (227), 186 states have internal predecessors, (227), 42 states have call successors, (42), 34 states have call predecessors, (42), 34 states have return successors, (54), 37 states have call predecessors, (54), 42 states have call successors, (54) [2024-10-11 02:59:02,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 323 transitions. [2024-10-11 02:59:02,690 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 323 transitions. Word has length 24 [2024-10-11 02:59:02,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:59:02,691 INFO L471 AbstractCegarLoop]: Abstraction has 244 states and 323 transitions. [2024-10-11 02:59:02,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 02:59:02,691 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 323 transitions. [2024-10-11 02:59:02,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-10-11 02:59:02,693 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:59:02,693 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:59:02,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 02:59:02,694 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:59:02,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:59:02,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1310006385, now seen corresponding path program 1 times [2024-10-11 02:59:02,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:59:02,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532811682] [2024-10-11 02:59:02,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:59:02,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:59:02,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:02,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:59:02,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:02,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:59:02,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:02,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 02:59:02,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:02,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:59:02,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:02,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 02:59:02,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:02,897 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 02:59:02,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:59:02,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532811682] [2024-10-11 02:59:02,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532811682] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:59:02,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:59:02,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 02:59:02,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273036772] [2024-10-11 02:59:02,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:59:02,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 02:59:02,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:59:02,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 02:59:02,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 02:59:02,902 INFO L87 Difference]: Start difference. First operand 244 states and 323 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 02:59:03,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:59:03,113 INFO L93 Difference]: Finished difference Result 538 states and 733 transitions. [2024-10-11 02:59:03,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 02:59:03,114 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 48 [2024-10-11 02:59:03,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:59:03,117 INFO L225 Difference]: With dead ends: 538 [2024-10-11 02:59:03,121 INFO L226 Difference]: Without dead ends: 296 [2024-10-11 02:59:03,123 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-11 02:59:03,125 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 60 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 02:59:03,129 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 232 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 02:59:03,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2024-10-11 02:59:03,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 294. [2024-10-11 02:59:03,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 203 states have (on average 1.3349753694581281) internal successors, (271), 222 states have internal predecessors, (271), 46 states have call successors, (46), 34 states have call predecessors, (46), 44 states have return successors, (68), 49 states have call predecessors, (68), 46 states have call successors, (68) [2024-10-11 02:59:03,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 385 transitions. [2024-10-11 02:59:03,175 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 385 transitions. Word has length 48 [2024-10-11 02:59:03,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:59:03,176 INFO L471 AbstractCegarLoop]: Abstraction has 294 states and 385 transitions. [2024-10-11 02:59:03,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 02:59:03,176 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 385 transitions. [2024-10-11 02:59:03,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-10-11 02:59:03,178 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:59:03,178 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:59:03,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 02:59:03,179 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:59:03,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:59:03,180 INFO L85 PathProgramCache]: Analyzing trace with hash 613221649, now seen corresponding path program 1 times [2024-10-11 02:59:03,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:59:03,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061940045] [2024-10-11 02:59:03,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:59:03,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:59:03,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:03,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:59:03,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:03,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:59:03,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:03,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 02:59:03,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:03,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:59:03,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:03,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 02:59:03,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:03,331 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 02:59:03,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:59:03,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061940045] [2024-10-11 02:59:03,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061940045] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:59:03,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:59:03,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 02:59:03,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906653609] [2024-10-11 02:59:03,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:59:03,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 02:59:03,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:59:03,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 02:59:03,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 02:59:03,335 INFO L87 Difference]: Start difference. First operand 294 states and 385 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 02:59:03,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:59:03,683 INFO L93 Difference]: Finished difference Result 598 states and 803 transitions. [2024-10-11 02:59:03,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 02:59:03,684 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 48 [2024-10-11 02:59:03,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:59:03,686 INFO L225 Difference]: With dead ends: 598 [2024-10-11 02:59:03,687 INFO L226 Difference]: Without dead ends: 306 [2024-10-11 02:59:03,690 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-10-11 02:59:03,691 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 190 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 02:59:03,692 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 332 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 02:59:03,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2024-10-11 02:59:03,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 298. [2024-10-11 02:59:03,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 207 states have (on average 1.328502415458937) internal successors, (275), 226 states have internal predecessors, (275), 46 states have call successors, (46), 34 states have call predecessors, (46), 44 states have return successors, (68), 49 states have call predecessors, (68), 46 states have call successors, (68) [2024-10-11 02:59:03,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 389 transitions. [2024-10-11 02:59:03,723 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 389 transitions. Word has length 48 [2024-10-11 02:59:03,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:59:03,724 INFO L471 AbstractCegarLoop]: Abstraction has 298 states and 389 transitions. [2024-10-11 02:59:03,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 02:59:03,724 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 389 transitions. [2024-10-11 02:59:03,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-10-11 02:59:03,726 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:59:03,726 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:59:03,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 02:59:03,726 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:59:03,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:59:03,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1999425043, now seen corresponding path program 1 times [2024-10-11 02:59:03,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:59:03,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567481488] [2024-10-11 02:59:03,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:59:03,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:59:03,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:03,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:59:03,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:03,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:59:03,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:03,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 02:59:03,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:03,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:59:03,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:03,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 02:59:03,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:03,844 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 02:59:03,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:59:03,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567481488] [2024-10-11 02:59:03,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567481488] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:59:03,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:59:03,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 02:59:03,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866833890] [2024-10-11 02:59:03,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:59:03,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 02:59:03,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:59:03,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 02:59:03,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 02:59:03,846 INFO L87 Difference]: Start difference. First operand 298 states and 389 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-10-11 02:59:04,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:59:04,303 INFO L93 Difference]: Finished difference Result 945 states and 1323 transitions. [2024-10-11 02:59:04,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 02:59:04,304 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 48 [2024-10-11 02:59:04,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:59:04,309 INFO L225 Difference]: With dead ends: 945 [2024-10-11 02:59:04,309 INFO L226 Difference]: Without dead ends: 649 [2024-10-11 02:59:04,311 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-11 02:59:04,312 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 222 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-11 02:59:04,312 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 330 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-11 02:59:04,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2024-10-11 02:59:04,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 641. [2024-10-11 02:59:04,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 446 states have (on average 1.3206278026905829) internal successors, (589), 481 states have internal predecessors, (589), 104 states have call successors, (104), 87 states have call predecessors, (104), 90 states have return successors, (172), 98 states have call predecessors, (172), 104 states have call successors, (172) [2024-10-11 02:59:04,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 865 transitions. [2024-10-11 02:59:04,387 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 865 transitions. Word has length 48 [2024-10-11 02:59:04,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:59:04,387 INFO L471 AbstractCegarLoop]: Abstraction has 641 states and 865 transitions. [2024-10-11 02:59:04,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-10-11 02:59:04,388 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 865 transitions. [2024-10-11 02:59:04,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-10-11 02:59:04,391 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:59:04,392 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:59:04,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 02:59:04,393 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:59:04,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:59:04,394 INFO L85 PathProgramCache]: Analyzing trace with hash -503728007, now seen corresponding path program 1 times [2024-10-11 02:59:04,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:59:04,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861406591] [2024-10-11 02:59:04,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:59:04,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:59:04,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:04,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 02:59:04,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:04,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 02:59:04,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:04,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:59:04,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:04,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 02:59:04,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:04,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:59:04,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:04,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-11 02:59:04,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:04,474 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 02:59:04,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:59:04,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861406591] [2024-10-11 02:59:04,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861406591] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:59:04,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:59:04,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 02:59:04,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131319156] [2024-10-11 02:59:04,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:59:04,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 02:59:04,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:59:04,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 02:59:04,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 02:59:04,476 INFO L87 Difference]: Start difference. First operand 641 states and 865 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-11 02:59:04,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:59:04,958 INFO L93 Difference]: Finished difference Result 1363 states and 1937 transitions. [2024-10-11 02:59:04,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 02:59:04,959 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 52 [2024-10-11 02:59:04,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:59:04,969 INFO L225 Difference]: With dead ends: 1363 [2024-10-11 02:59:04,970 INFO L226 Difference]: Without dead ends: 1361 [2024-10-11 02:59:04,971 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-10-11 02:59:04,972 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 333 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 02:59:04,972 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [338 Valid, 146 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 02:59:04,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1361 states. [2024-10-11 02:59:05,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1361 to 1270. [2024-10-11 02:59:05,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1270 states, 876 states have (on average 1.3139269406392695) internal successors, (1151), 956 states have internal predecessors, (1151), 222 states have call successors, (222), 155 states have call predecessors, (222), 171 states have return successors, (443), 199 states have call predecessors, (443), 222 states have call successors, (443) [2024-10-11 02:59:05,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1270 states to 1270 states and 1816 transitions. [2024-10-11 02:59:05,126 INFO L78 Accepts]: Start accepts. Automaton has 1270 states and 1816 transitions. Word has length 52 [2024-10-11 02:59:05,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:59:05,127 INFO L471 AbstractCegarLoop]: Abstraction has 1270 states and 1816 transitions. [2024-10-11 02:59:05,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-11 02:59:05,127 INFO L276 IsEmpty]: Start isEmpty. Operand 1270 states and 1816 transitions. [2024-10-11 02:59:05,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-11 02:59:05,131 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:59:05,131 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:59:05,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 02:59:05,131 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:59:05,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:59:05,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1576005408, now seen corresponding path program 1 times [2024-10-11 02:59:05,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:59:05,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434091963] [2024-10-11 02:59:05,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:59:05,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:59:05,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:05,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 02:59:05,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:05,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-11 02:59:05,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:05,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 02:59:05,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:05,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:59:05,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:05,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 02:59:05,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:05,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:59:05,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:05,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-11 02:59:05,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:05,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-11 02:59:05,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:05,435 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-11 02:59:05,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:59:05,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434091963] [2024-10-11 02:59:05,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434091963] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:59:05,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1980952403] [2024-10-11 02:59:05,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:59:05,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:59:05,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:59:05,438 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:59:05,440 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 02:59:05,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:05,535 INFO L255 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 02:59:05,542 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:59:05,572 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-11 02:59:05,572 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:59:05,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1980952403] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:59:05,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:59:05,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [14] total 14 [2024-10-11 02:59:05,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376701254] [2024-10-11 02:59:05,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:59:05,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 02:59:05,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:59:05,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 02:59:05,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-10-11 02:59:05,574 INFO L87 Difference]: Start difference. First operand 1270 states and 1816 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) [2024-10-11 02:59:05,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:59:05,697 INFO L93 Difference]: Finished difference Result 1390 states and 1983 transitions. [2024-10-11 02:59:05,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 02:59:05,698 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) Word has length 77 [2024-10-11 02:59:05,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:59:05,703 INFO L225 Difference]: With dead ends: 1390 [2024-10-11 02:59:05,703 INFO L226 Difference]: Without dead ends: 614 [2024-10-11 02:59:05,706 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-10-11 02:59:05,707 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 34 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 02:59:05,708 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 210 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 02:59:05,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2024-10-11 02:59:05,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 614. [2024-10-11 02:59:05,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 614 states, 425 states have (on average 1.275294117647059) internal successors, (542), 460 states have internal predecessors, (542), 104 states have call successors, (104), 75 states have call predecessors, (104), 84 states have return successors, (210), 96 states have call predecessors, (210), 104 states have call successors, (210) [2024-10-11 02:59:05,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 856 transitions. [2024-10-11 02:59:05,762 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 856 transitions. Word has length 77 [2024-10-11 02:59:05,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:59:05,764 INFO L471 AbstractCegarLoop]: Abstraction has 614 states and 856 transitions. [2024-10-11 02:59:05,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) [2024-10-11 02:59:05,765 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 856 transitions. [2024-10-11 02:59:05,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-11 02:59:05,768 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:59:05,768 INFO L215 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-10-11 02:59:05,788 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-11 02:59:05,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:59:05,969 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:59:05,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:59:05,969 INFO L85 PathProgramCache]: Analyzing trace with hash -647768170, now seen corresponding path program 1 times [2024-10-11 02:59:05,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:59:05,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938399155] [2024-10-11 02:59:05,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:59:05,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:59:05,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:06,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 02:59:06,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:06,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:59:06,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:06,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 02:59:06,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:06,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:59:06,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:06,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 02:59:06,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:06,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:59:06,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:06,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-11 02:59:06,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:06,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-11 02:59:06,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:06,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:59:06,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:06,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 02:59:06,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:06,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:59:06,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:06,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-11 02:59:06,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:06,175 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 10 proven. 14 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-10-11 02:59:06,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:59:06,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938399155] [2024-10-11 02:59:06,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938399155] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:59:06,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1906198611] [2024-10-11 02:59:06,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:59:06,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:59:06,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:59:06,178 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:59:06,180 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 02:59:06,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:06,291 INFO L255 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 02:59:06,294 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:59:06,315 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-10-11 02:59:06,316 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:59:06,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1906198611] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:59:06,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:59:06,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 8 [2024-10-11 02:59:06,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157454396] [2024-10-11 02:59:06,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:59:06,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 02:59:06,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:59:06,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 02:59:06,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-11 02:59:06,318 INFO L87 Difference]: Start difference. First operand 614 states and 856 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-11 02:59:06,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:59:06,416 INFO L93 Difference]: Finished difference Result 1107 states and 1561 transitions. [2024-10-11 02:59:06,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 02:59:06,416 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 101 [2024-10-11 02:59:06,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:59:06,420 INFO L225 Difference]: With dead ends: 1107 [2024-10-11 02:59:06,420 INFO L226 Difference]: Without dead ends: 495 [2024-10-11 02:59:06,424 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-11 02:59:06,424 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 71 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 02:59:06,425 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 188 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 02:59:06,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2024-10-11 02:59:06,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 495. [2024-10-11 02:59:06,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 342 states have (on average 1.2426900584795322) internal successors, (425), 370 states have internal predecessors, (425), 83 states have call successors, (83), 64 states have call predecessors, (83), 69 states have return successors, (127), 77 states have call predecessors, (127), 83 states have call successors, (127) [2024-10-11 02:59:06,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 635 transitions. [2024-10-11 02:59:06,469 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 635 transitions. Word has length 101 [2024-10-11 02:59:06,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:59:06,469 INFO L471 AbstractCegarLoop]: Abstraction has 495 states and 635 transitions. [2024-10-11 02:59:06,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-11 02:59:06,470 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 635 transitions. [2024-10-11 02:59:06,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-11 02:59:06,471 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:59:06,471 INFO L215 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-10-11 02:59:06,490 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-11 02:59:06,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:59:06,673 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:59:06,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:59:06,673 INFO L85 PathProgramCache]: Analyzing trace with hash 769646448, now seen corresponding path program 1 times [2024-10-11 02:59:06,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:59:06,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345130021] [2024-10-11 02:59:06,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:59:06,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:59:06,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:06,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 02:59:06,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:06,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:59:06,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:06,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 02:59:06,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:06,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:59:06,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:06,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 02:59:06,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:07,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:59:07,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:07,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-11 02:59:07,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:07,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-11 02:59:07,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:07,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:59:07,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:07,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-11 02:59:07,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:07,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 02:59:07,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:07,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:59:07,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:07,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-11 02:59:07,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:07,059 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 16 proven. 10 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-11 02:59:07,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:59:07,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345130021] [2024-10-11 02:59:07,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345130021] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:59:07,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [470819430] [2024-10-11 02:59:07,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:59:07,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:59:07,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:59:07,062 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:59:07,063 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 02:59:07,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:07,153 INFO L255 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-11 02:59:07,156 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:59:07,310 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 32 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 02:59:07,310 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 02:59:07,605 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-10-11 02:59:07,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [470819430] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 02:59:07,605 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 02:59:07,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 5, 6] total 19 [2024-10-11 02:59:07,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035617501] [2024-10-11 02:59:07,606 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 02:59:07,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-11 02:59:07,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:59:07,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-11 02:59:07,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2024-10-11 02:59:07,608 INFO L87 Difference]: Start difference. First operand 495 states and 635 transitions. Second operand has 19 states, 17 states have (on average 8.235294117647058) internal successors, (140), 13 states have internal predecessors, (140), 7 states have call successors, (32), 7 states have call predecessors, (32), 8 states have return successors, (31), 10 states have call predecessors, (31), 7 states have call successors, (31) [2024-10-11 02:59:11,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:59:11,017 INFO L93 Difference]: Finished difference Result 2500 states and 3431 transitions. [2024-10-11 02:59:11,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2024-10-11 02:59:11,018 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 8.235294117647058) internal successors, (140), 13 states have internal predecessors, (140), 7 states have call successors, (32), 7 states have call predecessors, (32), 8 states have return successors, (31), 10 states have call predecessors, (31), 7 states have call successors, (31) Word has length 101 [2024-10-11 02:59:11,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:59:11,031 INFO L225 Difference]: With dead ends: 2500 [2024-10-11 02:59:11,031 INFO L226 Difference]: Without dead ends: 2007 [2024-10-11 02:59:11,038 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 238 SyntacticMatches, 2 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3938 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1503, Invalid=9627, Unknown=0, NotChecked=0, Total=11130 [2024-10-11 02:59:11,039 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 1423 mSDsluCounter, 819 mSDsCounter, 0 mSdLazyCounter, 2041 mSolverCounterSat, 762 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1442 SdHoareTripleChecker+Valid, 909 SdHoareTripleChecker+Invalid, 2803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 762 IncrementalHoareTripleChecker+Valid, 2041 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-11 02:59:11,040 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1442 Valid, 909 Invalid, 2803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [762 Valid, 2041 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-11 02:59:11,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2007 states. [2024-10-11 02:59:11,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2007 to 1578. [2024-10-11 02:59:11,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1075 states have (on average 1.1916279069767441) internal successors, (1281), 1160 states have internal predecessors, (1281), 261 states have call successors, (261), 212 states have call predecessors, (261), 241 states have return successors, (431), 248 states have call predecessors, (431), 261 states have call successors, (431) [2024-10-11 02:59:11,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 1973 transitions. [2024-10-11 02:59:11,178 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 1973 transitions. Word has length 101 [2024-10-11 02:59:11,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:59:11,178 INFO L471 AbstractCegarLoop]: Abstraction has 1578 states and 1973 transitions. [2024-10-11 02:59:11,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 8.235294117647058) internal successors, (140), 13 states have internal predecessors, (140), 7 states have call successors, (32), 7 states have call predecessors, (32), 8 states have return successors, (31), 10 states have call predecessors, (31), 7 states have call successors, (31) [2024-10-11 02:59:11,179 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 1973 transitions. [2024-10-11 02:59:11,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-11 02:59:11,182 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:59:11,182 INFO L215 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:59:11,209 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-11 02:59:11,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:59:11,384 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:59:11,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:59:11,384 INFO L85 PathProgramCache]: Analyzing trace with hash -575000107, now seen corresponding path program 1 times [2024-10-11 02:59:11,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:59:11,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058293438] [2024-10-11 02:59:11,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:59:11,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:59:11,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:11,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 02:59:11,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:11,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:59:11,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:11,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 02:59:11,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:11,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:59:11,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:11,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 02:59:11,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:11,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:59:11,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:11,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-11 02:59:11,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:11,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-11 02:59:11,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:11,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 02:59:11,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:11,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 02:59:11,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:11,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:59:11,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:11,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 02:59:11,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:11,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 02:59:11,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:11,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:59:11,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:11,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 02:59:11,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:11,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 02:59:11,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:11,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:59:11,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:11,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-11 02:59:11,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:11,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 02:59:11,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:11,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:59:11,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:11,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-11 02:59:11,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:11,628 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 42 proven. 13 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-10-11 02:59:11,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:59:11,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058293438] [2024-10-11 02:59:11,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058293438] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:59:11,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [23990387] [2024-10-11 02:59:11,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:59:11,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:59:11,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:59:11,630 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:59:11,631 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-11 02:59:11,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:11,730 INFO L255 TraceCheckSpWp]: Trace formula consists of 458 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-11 02:59:11,737 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:59:11,863 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-10-11 02:59:11,864 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:59:11,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [23990387] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:59:11,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:59:11,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 16 [2024-10-11 02:59:11,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820874885] [2024-10-11 02:59:11,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:59:11,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 02:59:11,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:59:11,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 02:59:11,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2024-10-11 02:59:11,867 INFO L87 Difference]: Start difference. First operand 1578 states and 1973 transitions. Second operand has 8 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 3 states have call successors, (18), 3 states have call predecessors, (18), 5 states have return successors, (17), 5 states have call predecessors, (17), 3 states have call successors, (17) [2024-10-11 02:59:12,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:59:12,130 INFO L93 Difference]: Finished difference Result 2771 states and 3444 transitions. [2024-10-11 02:59:12,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 02:59:12,131 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 3 states have call successors, (18), 3 states have call predecessors, (18), 5 states have return successors, (17), 5 states have call predecessors, (17), 3 states have call successors, (17) Word has length 152 [2024-10-11 02:59:12,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:59:12,135 INFO L225 Difference]: With dead ends: 2771 [2024-10-11 02:59:12,135 INFO L226 Difference]: Without dead ends: 0 [2024-10-11 02:59:12,142 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2024-10-11 02:59:12,143 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 57 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 690 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 02:59:12,143 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 690 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 02:59:12,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-11 02:59:12,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-11 02:59:12,144 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) [2024-10-11 02:59:12,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-11 02:59:12,146 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 152 [2024-10-11 02:59:12,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:59:12,146 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-11 02:59:12,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 3 states have call successors, (18), 3 states have call predecessors, (18), 5 states have return successors, (17), 5 states have call predecessors, (17), 3 states have call successors, (17) [2024-10-11 02:59:12,147 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-11 02:59:12,147 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-11 02:59:12,149 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-11 02:59:12,167 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-11 02:59:12,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-10-11 02:59:12,353 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:59:12,356 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-11 02:59:20,903 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 02:59:20,918 WARN L155 FloydHoareUtils]: Requires clause for deactivatePump contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (or (<= 2 ~waterLevel~0) (= 1 ~systemActive~0))) Eliminated clause: (or (< 1 ~waterLevel~0) (= 1 ~systemActive~0)) [2024-10-11 02:59:20,929 WARN L155 FloydHoareUtils]: Requires clause for changeMethaneLevel contained old-variable. Original clause: (let ((.cse2 (= 1 ~systemActive~0))) (let ((.cse1 (= |old(~methaneLevelCritical~0)| 0)) (.cse5 (not .cse2)) (.cse3 (= ~pumpRunning~0 0)) (.cse4 (= ~methaneLevelCritical~0 0))) (and (let ((.cse0 (= ~methAndRunningLastTime~0 0))) (or (and .cse0 .cse1 .cse2) (and .cse0 (<= 1 |old(~methaneLevelCritical~0)|) .cse2) (and .cse3 .cse0 (= 0 ~systemActive~0)))) (or (not .cse1) .cse4 .cse5) (or (<= 1 ~methaneLevelCritical~0) .cse5 (< |old(~methaneLevelCritical~0)| 1)) (or .cse3 .cse4)))) Eliminated clause: (let ((.cse3 (= ~pumpRunning~0 0)) (.cse4 (= ~methaneLevelCritical~0 0))) (and (exists ((|old(~methaneLevelCritical~0)| Int)) (let ((.cse2 (= 1 ~systemActive~0))) (let ((.cse1 (= |old(~methaneLevelCritical~0)| 0)) (.cse5 (not .cse2))) (and (let ((.cse0 (= ~methAndRunningLastTime~0 0))) (or (and .cse0 .cse1 .cse2) (and .cse0 (<= 1 |old(~methaneLevelCritical~0)|) .cse2) (and .cse3 .cse0 (= 0 ~systemActive~0)))) (or (not .cse1) .cse4 .cse5) (or .cse5 (< |old(~methaneLevelCritical~0)| 1) (< 0 ~methaneLevelCritical~0)))))) (or .cse3 .cse4))) [2024-10-11 02:59:20,933 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-11 02:59:20,944 WARN L155 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (let ((.cse6 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse7 (= |old(~pumpRunning~0)| 0))) (let ((.cse0 (= |old(~methAndRunningLastTime~0)| 0)) (.cse3 (not .cse7)) (.cse5 (and (= ~pumpRunning~0 0) .cse6)) (.cse4 (= 0 ~systemActive~0))) (and (or (not .cse0) (= ~methAndRunningLastTime~0 0)) (let ((.cse1 (= ~methaneLevelCritical~0 0)) (.cse2 (= 1 ~systemActive~0))) (or (and .cse1 .cse0 .cse2) (and .cse3 .cse1 .cse2) (and (<= 1 ~methaneLevelCritical~0) .cse0 .cse2) .cse4)) (or .cse3 .cse5) (or .cse5 (not .cse4)) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse6 (= |old(~methAndRunningLastTime~0)| ~methAndRunningLastTime~0)) .cse7)))) Eliminated clause: (exists ((|old(~methAndRunningLastTime~0)| Int) (|old(~pumpRunning~0)| Int) (|old(~waterLevel~0)| Int)) (let ((.cse6 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse7 (= |old(~pumpRunning~0)| 0))) (let ((.cse0 (= |old(~methAndRunningLastTime~0)| 0)) (.cse3 (not .cse7)) (.cse5 (and (= ~pumpRunning~0 0) .cse6)) (.cse4 (= 0 ~systemActive~0))) (and (or (not .cse0) (= ~methAndRunningLastTime~0 0)) (let ((.cse1 (= ~methaneLevelCritical~0 0)) (.cse2 (= 1 ~systemActive~0))) (or (and .cse1 .cse0 .cse2) (and .cse3 .cse1 .cse2) (and (<= 1 ~methaneLevelCritical~0) .cse0 .cse2) .cse4)) (or .cse3 .cse5) (or .cse5 (not .cse4)) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse6 (= |old(~methAndRunningLastTime~0)| ~methAndRunningLastTime~0)) .cse7))))) [2024-10-11 02:59:20,951 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-11 02:59:20,955 WARN L155 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__highWaterSensor contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse0 (= |old(~pumpRunning~0)| 0)) (.cse3 (= ~methAndRunningLastTime~0 0)) (.cse1 (= ~methaneLevelCritical~0 0)) (.cse2 (= 1 ~systemActive~0))) (or (and (not .cse0) .cse1 .cse2) (and .cse3 (<= 1 ~methaneLevelCritical~0) .cse2 .cse0) (and .cse3 .cse1 .cse2)))) Eliminated clause: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse3 (= ~methaneLevelCritical~0 0)) (.cse2 (= 1 ~systemActive~0))) (or (and .cse0 .cse1 (<= 1 ~methaneLevelCritical~0) .cse2) (and (not .cse0) .cse3 .cse2) (and .cse1 .cse3 .cse2))) [2024-10-11 02:59:20,961 WARN L155 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (and (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse2 (= 1 ~systemActive~0))) (or (and .cse0 .cse1 (<= 1 ~methaneLevelCritical~0) .cse2) (and .cse0 .cse1 (= 0 ~systemActive~0)) (and .cse1 (= ~methaneLevelCritical~0 0) .cse2))) (= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse2 (= 1 ~systemActive~0))) (or (and .cse0 .cse1 (<= 1 ~methaneLevelCritical~0) .cse2) (and .cse0 .cse1 (= 0 ~systemActive~0)) (and .cse1 (= ~methaneLevelCritical~0 0) .cse2))) [2024-10-11 02:59:20,967 WARN L155 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__methaneQuery contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse0 (= |old(~pumpRunning~0)| 0)) (.cse3 (= ~methAndRunningLastTime~0 0)) (.cse1 (= ~methaneLevelCritical~0 0)) (.cse2 (= 1 ~systemActive~0))) (or (and (not .cse0) .cse1 .cse2) (and .cse3 (<= 1 ~methaneLevelCritical~0) .cse2 .cse0) (and .cse3 .cse1 .cse2)))) Eliminated clause: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse3 (= ~methaneLevelCritical~0 0)) (.cse2 (= 1 ~systemActive~0))) (or (and .cse0 .cse1 (<= 1 ~methaneLevelCritical~0) .cse2) (and (not .cse0) .cse3 .cse2) (and .cse1 .cse3 .cse2))) [2024-10-11 02:59:20,978 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:59:20 BoogieIcfgContainer [2024-10-11 02:59:20,978 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 02:59:20,979 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 02:59:20,979 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 02:59:20,979 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 02:59:20,980 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:59:01" (3/4) ... [2024-10-11 02:59:20,981 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-11 02:59:20,986 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-10-11 02:59:20,986 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-10-11 02:59:20,986 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-10-11 02:59:20,986 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2024-10-11 02:59:20,986 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-10-11 02:59:20,987 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-10-11 02:59:20,987 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-10-11 02:59:20,987 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-10-11 02:59:20,987 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2024-10-11 02:59:20,987 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2024-10-11 02:59:21,002 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 36 nodes and edges [2024-10-11 02:59:21,002 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-10-11 02:59:21,003 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-11 02:59:21,003 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-11 02:59:21,004 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-11 02:59:21,120 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-11 02:59:21,120 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-11 02:59:21,120 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 02:59:21,124 INFO L158 Benchmark]: Toolchain (without parser) took 21192.68ms. Allocated memory was 127.9MB in the beginning and 390.1MB in the end (delta: 262.1MB). Free memory was 72.3MB in the beginning and 347.3MB in the end (delta: -275.0MB). Peak memory consumption was 211.0MB. Max. memory is 16.1GB. [2024-10-11 02:59:21,124 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 127.9MB. Free memory is still 99.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 02:59:21,125 INFO L158 Benchmark]: CACSL2BoogieTranslator took 584.68ms. Allocated memory was 127.9MB in the beginning and 180.4MB in the end (delta: 52.4MB). Free memory was 71.9MB in the beginning and 145.3MB in the end (delta: -73.4MB). Peak memory consumption was 23.9MB. Max. memory is 16.1GB. [2024-10-11 02:59:21,125 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.29ms. Allocated memory is still 180.4MB. Free memory was 145.3MB in the beginning and 143.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 02:59:21,125 INFO L158 Benchmark]: Boogie Preprocessor took 50.63ms. Allocated memory is still 180.4MB. Free memory was 143.2MB in the beginning and 141.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 02:59:21,125 INFO L158 Benchmark]: RCFGBuilder took 655.20ms. Allocated memory is still 180.4MB. Free memory was 141.1MB in the beginning and 114.9MB in the end (delta: 26.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-10-11 02:59:21,125 INFO L158 Benchmark]: TraceAbstraction took 19695.17ms. Allocated memory was 180.4MB in the beginning and 390.1MB in the end (delta: 209.7MB). Free memory was 113.9MB in the beginning and 127.0MB in the end (delta: -13.1MB). Peak memory consumption was 208.4MB. Max. memory is 16.1GB. [2024-10-11 02:59:21,126 INFO L158 Benchmark]: Witness Printer took 144.66ms. Allocated memory is still 390.1MB. Free memory was 127.0MB in the beginning and 347.3MB in the end (delta: -220.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 02:59:21,127 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 127.9MB. Free memory is still 99.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 584.68ms. Allocated memory was 127.9MB in the beginning and 180.4MB in the end (delta: 52.4MB). Free memory was 71.9MB in the beginning and 145.3MB in the end (delta: -73.4MB). Peak memory consumption was 23.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.29ms. Allocated memory is still 180.4MB. Free memory was 145.3MB in the beginning and 143.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.63ms. Allocated memory is still 180.4MB. Free memory was 143.2MB in the beginning and 141.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 655.20ms. Allocated memory is still 180.4MB. Free memory was 141.1MB in the beginning and 114.9MB in the end (delta: 26.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 19695.17ms. Allocated memory was 180.4MB in the beginning and 390.1MB in the end (delta: 209.7MB). Free memory was 113.9MB in the beginning and 127.0MB in the end (delta: -13.1MB). Peak memory consumption was 208.4MB. Max. memory is 16.1GB. * Witness Printer took 144.66ms. Allocated memory is still 390.1MB. Free memory was 127.0MB in the beginning and 347.3MB in the end (delta: -220.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [49] - GenericResultAtLocation [Line: 155]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [155] - GenericResultAtLocation [Line: 164]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [164] - GenericResultAtLocation [Line: 205]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [205] - GenericResultAtLocation [Line: 313]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [313] - GenericResultAtLocation [Line: 381]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [381] - GenericResultAtLocation [Line: 638]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [638] - GenericResultAtLocation [Line: 673]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [673] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * 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: 160]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 92 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.0s, OverallIterations: 12, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2612 SdHoareTripleChecker+Valid, 3.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2559 mSDsluCounter, 3770 SdHoareTripleChecker+Invalid, 2.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2537 mSDsCounter, 1115 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3322 IncrementalHoareTripleChecker+Invalid, 4437 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1115 mSolverCounterUnsat, 1233 mSDtfsCounter, 3322 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 885 GetRequests, 716 SyntacticMatches, 2 SemanticMatches, 167 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3998 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1578occurred in iteration=11, InterpolantAutomatonStates: 152, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 12 MinimizatonAttempts, 542 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 1138 NumberOfCodeBlocks, 1138 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 1222 ConstructedInterpolants, 0 QuantifiedInterpolants, 2082 SizeOfPredicates, 1 NumberOfNonLiveVariables, 1420 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 17 InterpolantComputations, 11 PerfectInterpolantSequences, 495/546 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: 325]: Loop Invariant Derived loop invariant: (((((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (splverifierCounter == 0)) || ((((methAndRunningLastTime == 0) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (splverifierCounter == 0))) || ((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (splverifierCounter == 0)) && (0 == systemActive))) - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 324]: Location Invariant Derived location invariant: 0 - ProcedureContractResult [Line: 521]: Procedure Contract for deactivatePump Derived contract for procedure deactivatePump. Requires: ((1 < waterLevel) || (1 == systemActive)) Ensures: ((pumpRunning == 0) && ((1 < waterLevel) || (1 == systemActive))) - ProcedureContractResult [Line: 411]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: ((((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 <= methaneLevelCritical)) && (1 == systemActive)) || (((pumpRunning != 0) && (methaneLevelCritical == 0)) && (1 == systemActive))) || (((methAndRunningLastTime == 0) && (methaneLevelCritical == 0)) && (1 == systemActive))) Ensures: ((((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 <= methaneLevelCritical)) && (1 == systemActive)) || (((pumpRunning != 0) && (methaneLevelCritical == 0)) && (1 == systemActive))) || (((methAndRunningLastTime == 0) && (methaneLevelCritical == 0)) && (1 == systemActive))) - ProcedureContractResult [Line: 237]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Requires: ((pumpRunning == 0) || (methaneLevelCritical == 0)) Ensures: (((((pumpRunning == 0) || (0 < methaneLevelCritical)) && (((((methAndRunningLastTime == 0) && (\old(methaneLevelCritical) == 0)) && (1 == systemActive)) || (((methAndRunningLastTime == 0) && (1 <= \old(methaneLevelCritical))) && (1 == systemActive))) || (((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (0 == systemActive)))) && (((methaneLevelCritical == 0) || (1 != systemActive)) || (\old(methaneLevelCritical) < 1))) && (((\old(methaneLevelCritical) != 0) || (1 != systemActive)) || (0 < methaneLevelCritical))) - ProcedureContractResult [Line: 249]: Procedure Contract for isMethaneLevelCritical Derived contract for procedure isMethaneLevelCritical. Requires: (((((methaneLevelCritical == 0) && (1 == systemActive)) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive))) || (((methAndRunningLastTime == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive))) || ((pumpRunning == 0) && (0 == systemActive))) Ensures: (((1 != systemActive) || (\result == methaneLevelCritical)) && (((((methaneLevelCritical == 0) && (1 == systemActive)) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive))) || (((methAndRunningLastTime == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive))) || ((pumpRunning == 0) && (0 == systemActive)))) - ProcedureContractResult [Line: 387]: Procedure Contract for timeShift Derived contract for procedure timeShift. Ensures: (((((((((1 < \old(waterLevel)) || (waterLevel < 2)) && ((0 < waterLevel) || (\old(waterLevel) < 2))) && ((\old(waterLevel) != 0) || (waterLevel == 0))) && ((((((methaneLevelCritical == 0) && (\old(methAndRunningLastTime) == 0)) && (1 == systemActive)) || ((\old(pumpRunning) != 0) && (methaneLevelCritical == 0))) || (((1 <= methaneLevelCritical) && (\old(methAndRunningLastTime) == 0)) && (1 == systemActive))) || (0 == systemActive))) && ((pumpRunning == 0) || (methaneLevelCritical < 1))) && ((pumpRunning == 0) || (0 != systemActive))) && (((((pumpRunning == \old(pumpRunning)) && (methAndRunningLastTime == 0)) && (1 == systemActive)) || (\old(pumpRunning) == 0)) || (((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 == systemActive)))) && (((\old(pumpRunning) != 0) || (((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (\old(waterLevel) == waterLevel))) || (((methAndRunningLastTime == 0) && (2 <= waterLevel)) && (\old(waterLevel) == waterLevel)))) - ProcedureContractResult [Line: 52]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: 0 - ProcedureContractResult [Line: 419]: Procedure Contract for processEnvironment__wrappee__highWaterSensor Derived contract for procedure processEnvironment__wrappee__highWaterSensor. Requires: ((((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 <= methaneLevelCritical)) && (1 == systemActive)) || (((pumpRunning != 0) && (methaneLevelCritical == 0)) && (1 == systemActive))) || (((methAndRunningLastTime == 0) && (methaneLevelCritical == 0)) && (1 == systemActive))) Ensures: (((((pumpRunning == 0) || (methaneLevelCritical < 1)) && (((((\old(pumpRunning) != 0) && (methaneLevelCritical == 0)) && (1 == systemActive)) || (((methAndRunningLastTime == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive))) || (((methAndRunningLastTime == 0) && (methaneLevelCritical == 0)) && (1 == systemActive)))) && (((\old(pumpRunning) != 0) || (pumpRunning == 0)) || (1 < waterLevel))) && ((pumpRunning == \old(pumpRunning)) || (\old(pumpRunning) == 0))) - ProcedureContractResult [Line: 225]: Procedure Contract for waterRise Derived contract for procedure waterRise. Requires: ((((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 <= methaneLevelCritical)) && (1 == systemActive)) || (((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (0 == systemActive))) || (((methAndRunningLastTime == 0) && (methaneLevelCritical == 0)) && (1 == systemActive))) Ensures: (((((((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 <= methaneLevelCritical)) && (1 == systemActive)) || (((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (0 == systemActive))) || (((methAndRunningLastTime == 0) && (methaneLevelCritical == 0)) && (1 == systemActive))) && ((\old(waterLevel) < 2) || (\old(waterLevel) == waterLevel))) && (((\old(waterLevel) < 1) || (1 != systemActive)) || (1 < waterLevel))) && (((1 != systemActive) || (0 < waterLevel)) || (\old(waterLevel) != 0))) - ProcedureContractResult [Line: 445]: Procedure Contract for processEnvironment__wrappee__methaneQuery Derived contract for procedure processEnvironment__wrappee__methaneQuery. Requires: ((((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 <= methaneLevelCritical)) && (1 == systemActive)) || (((pumpRunning != 0) && (methaneLevelCritical == 0)) && (1 == systemActive))) || (((methAndRunningLastTime == 0) && (methaneLevelCritical == 0)) && (1 == systemActive))) Ensures: (((((((pumpRunning == 0) && (1 == systemActive)) && (\old(pumpRunning) == 0)) || (methaneLevelCritical < 1)) && ((((methAndRunningLastTime == 0) && (1 <= methaneLevelCritical)) || (((\old(pumpRunning) != 0) && (methaneLevelCritical == 0)) && (1 == systemActive))) || (((methAndRunningLastTime == 0) && (methaneLevelCritical == 0)) && (1 == systemActive)))) && (((\old(pumpRunning) != 0) || (pumpRunning == 0)) || (1 < waterLevel))) && (((pumpRunning == \old(pumpRunning)) || (pumpRunning == 0)) || (\old(pumpRunning) == 0))) - ProcedureContractResult [Line: 529]: Procedure Contract for isMethaneAlarm Derived contract for procedure isMethaneAlarm. Requires: (((((((methAndRunningLastTime == 0) && (1 <= methaneLevelCritical)) && (2 <= waterLevel)) && (1 == systemActive)) || (((pumpRunning != 0) && (methaneLevelCritical == 0)) && (1 == systemActive))) || ((((methAndRunningLastTime == 0) && (methaneLevelCritical == 0)) && (2 <= waterLevel)) && (1 == systemActive))) || ((((methAndRunningLastTime == 0) && (1 <= methaneLevelCritical)) && (pumpRunning != 0)) && (1 == systemActive))) Ensures: ((((((((methAndRunningLastTime == 0) && (1 <= methaneLevelCritical)) && (2 <= waterLevel)) && (1 == systemActive)) || (((pumpRunning != 0) && (methaneLevelCritical == 0)) && (1 == systemActive))) || ((((methAndRunningLastTime == 0) && (methaneLevelCritical == 0)) && (2 <= waterLevel)) && (1 == systemActive))) || ((((methAndRunningLastTime == 0) && (1 <= methaneLevelCritical)) && (pumpRunning != 0)) && (1 == systemActive))) && (\result == methaneLevelCritical)) RESULT: Ultimate proved your program to be correct! [2024-10-11 02:59:21,159 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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